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authorMartin Liska <mliska@suse.cz>2022-01-14 16:56:44 +0100
committerMartin Liska <mliska@suse.cz>2022-01-17 22:12:04 +0100
commit5c69acb32329d49e58c26fa41ae74229a52b9106 (patch)
treeddb05f9d73afb6f998457d2ac4b720e3b3b60483 /gcc/cp/method.cc
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
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Rename .c files to .cc files.
gcc/ada/ChangeLog: * adadecode.c: Moved to... * adadecode.cc: ...here. * affinity.c: Moved to... * affinity.cc: ...here. * argv-lynxos178-raven-cert.c: Moved to... * argv-lynxos178-raven-cert.cc: ...here. * argv.c: Moved to... * argv.cc: ...here. * aux-io.c: Moved to... * aux-io.cc: ...here. * cio.c: Moved to... * cio.cc: ...here. * cstreams.c: Moved to... * cstreams.cc: ...here. * env.c: Moved to... * env.cc: ...here. * exit.c: Moved to... * exit.cc: ...here. * expect.c: Moved to... * expect.cc: ...here. * final.c: Moved to... * final.cc: ...here. * gcc-interface/cuintp.c: Moved to... * gcc-interface/cuintp.cc: ...here. * gcc-interface/decl.c: Moved to... * gcc-interface/decl.cc: ...here. * gcc-interface/misc.c: Moved to... * gcc-interface/misc.cc: ...here. * gcc-interface/targtyps.c: Moved to... * gcc-interface/targtyps.cc: ...here. * gcc-interface/trans.c: Moved to... * gcc-interface/trans.cc: ...here. * gcc-interface/utils.c: Moved to... * gcc-interface/utils.cc: ...here. * gcc-interface/utils2.c: Moved to... * gcc-interface/utils2.cc: ...here. * init.c: Moved to... * init.cc: ...here. * initialize.c: Moved to... * initialize.cc: ...here. * libgnarl/thread.c: Moved to... * libgnarl/thread.cc: ...here. * link.c: Moved to... * link.cc: ...here. * locales.c: Moved to... * locales.cc: ...here. * mkdir.c: Moved to... * mkdir.cc: ...here. * raise.c: Moved to... * raise.cc: ...here. * rtfinal.c: Moved to... * rtfinal.cc: ...here. * rtinit.c: Moved to... * rtinit.cc: ...here. * seh_init.c: Moved to... * seh_init.cc: ...here. * sigtramp-armdroid.c: Moved to... * sigtramp-armdroid.cc: ...here. * sigtramp-ios.c: Moved to... * sigtramp-ios.cc: ...here. * sigtramp-qnx.c: Moved to... * sigtramp-qnx.cc: ...here. * sigtramp-vxworks.c: Moved to... * sigtramp-vxworks.cc: ...here. * socket.c: Moved to... * socket.cc: ...here. * tracebak.c: Moved to... * tracebak.cc: ...here. * version.c: Moved to... * version.cc: ...here. * vx_stack_info.c: Moved to... * vx_stack_info.cc: ...here. gcc/ChangeLog: * adjust-alignment.c: Moved to... * adjust-alignment.cc: ...here. * alias.c: Moved to... * alias.cc: ...here. * alloc-pool.c: Moved to... * alloc-pool.cc: ...here. * asan.c: Moved to... * asan.cc: ...here. * attribs.c: Moved to... * attribs.cc: ...here. * auto-inc-dec.c: Moved to... * auto-inc-dec.cc: ...here. * auto-profile.c: Moved to... * auto-profile.cc: ...here. * bb-reorder.c: Moved to... * bb-reorder.cc: ...here. * bitmap.c: Moved to... * bitmap.cc: ...here. * btfout.c: Moved to... * btfout.cc: ...here. * builtins.c: Moved to... * builtins.cc: ...here. * caller-save.c: Moved to... * caller-save.cc: ...here. * calls.c: Moved to... * calls.cc: ...here. * ccmp.c: Moved to... * ccmp.cc: ...here. * cfg.c: Moved to... * cfg.cc: ...here. * cfganal.c: Moved to... * cfganal.cc: ...here. * cfgbuild.c: Moved to... * cfgbuild.cc: ...here. * cfgcleanup.c: Moved to... * cfgcleanup.cc: ...here. * cfgexpand.c: Moved to... * cfgexpand.cc: ...here. * cfghooks.c: Moved to... * cfghooks.cc: ...here. * cfgloop.c: Moved to... * cfgloop.cc: ...here. * cfgloopanal.c: Moved to... * cfgloopanal.cc: ...here. * cfgloopmanip.c: Moved to... * cfgloopmanip.cc: ...here. * cfgrtl.c: Moved to... * cfgrtl.cc: ...here. * cgraph.c: Moved to... * cgraph.cc: ...here. * cgraphbuild.c: Moved to... * cgraphbuild.cc: ...here. * cgraphclones.c: Moved to... * cgraphclones.cc: ...here. * cgraphunit.c: Moved to... * cgraphunit.cc: ...here. * collect-utils.c: Moved to... * collect-utils.cc: ...here. * collect2-aix.c: Moved to... * collect2-aix.cc: ...here. * collect2.c: Moved to... * collect2.cc: ...here. * combine-stack-adj.c: Moved to... * combine-stack-adj.cc: ...here. * combine.c: Moved to... * combine.cc: ...here. * common/common-targhooks.c: Moved to... * common/common-targhooks.cc: ...here. * common/config/aarch64/aarch64-common.c: Moved to... * common/config/aarch64/aarch64-common.cc: ...here. * common/config/alpha/alpha-common.c: Moved to... * common/config/alpha/alpha-common.cc: ...here. * common/config/arc/arc-common.c: Moved to... * common/config/arc/arc-common.cc: ...here. * common/config/arm/arm-common.c: Moved to... * common/config/arm/arm-common.cc: ...here. * common/config/avr/avr-common.c: Moved to... * common/config/avr/avr-common.cc: ...here. * common/config/bfin/bfin-common.c: Moved to... * common/config/bfin/bfin-common.cc: ...here. * common/config/bpf/bpf-common.c: Moved to... * common/config/bpf/bpf-common.cc: ...here. * common/config/c6x/c6x-common.c: Moved to... * common/config/c6x/c6x-common.cc: ...here. * common/config/cr16/cr16-common.c: Moved to... * common/config/cr16/cr16-common.cc: ...here. * common/config/cris/cris-common.c: Moved to... * common/config/cris/cris-common.cc: ...here. * common/config/csky/csky-common.c: Moved to... * common/config/csky/csky-common.cc: ...here. * common/config/default-common.c: Moved to... * common/config/default-common.cc: ...here. * common/config/epiphany/epiphany-common.c: Moved to... * common/config/epiphany/epiphany-common.cc: ...here. * common/config/fr30/fr30-common.c: Moved to... * common/config/fr30/fr30-common.cc: ...here. * common/config/frv/frv-common.c: Moved to... * common/config/frv/frv-common.cc: ...here. * common/config/gcn/gcn-common.c: Moved to... * common/config/gcn/gcn-common.cc: ...here. * common/config/h8300/h8300-common.c: Moved to... * common/config/h8300/h8300-common.cc: ...here. * common/config/i386/i386-common.c: Moved to... * common/config/i386/i386-common.cc: ...here. * common/config/ia64/ia64-common.c: Moved to... * common/config/ia64/ia64-common.cc: ...here. * common/config/iq2000/iq2000-common.c: Moved to... * common/config/iq2000/iq2000-common.cc: ...here. * common/config/lm32/lm32-common.c: Moved to... * common/config/lm32/lm32-common.cc: ...here. * common/config/m32r/m32r-common.c: Moved to... * common/config/m32r/m32r-common.cc: ...here. * common/config/m68k/m68k-common.c: Moved to... * common/config/m68k/m68k-common.cc: ...here. * common/config/mcore/mcore-common.c: Moved to... * common/config/mcore/mcore-common.cc: ...here. * common/config/microblaze/microblaze-common.c: Moved to... * common/config/microblaze/microblaze-common.cc: ...here. * common/config/mips/mips-common.c: Moved to... * common/config/mips/mips-common.cc: ...here. * common/config/mmix/mmix-common.c: Moved to... * common/config/mmix/mmix-common.cc: ...here. * common/config/mn10300/mn10300-common.c: Moved to... * common/config/mn10300/mn10300-common.cc: ...here. * common/config/msp430/msp430-common.c: Moved to... * common/config/msp430/msp430-common.cc: ...here. * common/config/nds32/nds32-common.c: Moved to... * common/config/nds32/nds32-common.cc: ...here. * common/config/nios2/nios2-common.c: Moved to... * common/config/nios2/nios2-common.cc: ...here. * common/config/nvptx/nvptx-common.c: Moved to... * common/config/nvptx/nvptx-common.cc: ...here. * common/config/or1k/or1k-common.c: Moved to... * common/config/or1k/or1k-common.cc: ...here. * common/config/pa/pa-common.c: Moved to... * common/config/pa/pa-common.cc: ...here. * common/config/pdp11/pdp11-common.c: Moved to... * common/config/pdp11/pdp11-common.cc: ...here. * common/config/pru/pru-common.c: Moved to... * common/config/pru/pru-common.cc: ...here. * common/config/riscv/riscv-common.c: Moved to... * common/config/riscv/riscv-common.cc: ...here. * common/config/rs6000/rs6000-common.c: Moved to... * common/config/rs6000/rs6000-common.cc: ...here. * common/config/rx/rx-common.c: Moved to... * common/config/rx/rx-common.cc: ...here. * common/config/s390/s390-common.c: Moved to... * common/config/s390/s390-common.cc: ...here. * common/config/sh/sh-common.c: Moved to... * common/config/sh/sh-common.cc: ...here. * common/config/sparc/sparc-common.c: Moved to... * common/config/sparc/sparc-common.cc: ...here. * common/config/tilegx/tilegx-common.c: Moved to... * common/config/tilegx/tilegx-common.cc: ...here. * common/config/tilepro/tilepro-common.c: Moved to... * common/config/tilepro/tilepro-common.cc: ...here. * common/config/v850/v850-common.c: Moved to... * common/config/v850/v850-common.cc: ...here. * common/config/vax/vax-common.c: Moved to... * common/config/vax/vax-common.cc: ...here. * common/config/visium/visium-common.c: Moved to... * common/config/visium/visium-common.cc: ...here. * common/config/xstormy16/xstormy16-common.c: Moved to... * common/config/xstormy16/xstormy16-common.cc: ...here. * common/config/xtensa/xtensa-common.c: Moved to... * common/config/xtensa/xtensa-common.cc: ...here. * compare-elim.c: Moved to... * compare-elim.cc: ...here. * config/aarch64/aarch64-bti-insert.c: Moved to... * config/aarch64/aarch64-bti-insert.cc: ...here. * config/aarch64/aarch64-builtins.c: Moved to... * config/aarch64/aarch64-builtins.cc: ...here. * config/aarch64/aarch64-c.c: Moved to... * config/aarch64/aarch64-c.cc: ...here. * config/aarch64/aarch64-d.c: Moved to... * config/aarch64/aarch64-d.cc: ...here. * config/aarch64/aarch64.c: Moved to... * config/aarch64/aarch64.cc: ...here. * config/aarch64/cortex-a57-fma-steering.c: Moved to... * config/aarch64/cortex-a57-fma-steering.cc: ...here. * config/aarch64/driver-aarch64.c: Moved to... * config/aarch64/driver-aarch64.cc: ...here. * config/aarch64/falkor-tag-collision-avoidance.c: Moved to... * config/aarch64/falkor-tag-collision-avoidance.cc: ...here. * config/aarch64/host-aarch64-darwin.c: Moved to... * config/aarch64/host-aarch64-darwin.cc: ...here. * config/alpha/alpha.c: Moved to... * config/alpha/alpha.cc: ...here. * config/alpha/driver-alpha.c: Moved to... * config/alpha/driver-alpha.cc: ...here. * config/arc/arc-c.c: Moved to... * config/arc/arc-c.cc: ...here. * config/arc/arc.c: Moved to... * config/arc/arc.cc: ...here. * config/arc/driver-arc.c: Moved to... * config/arc/driver-arc.cc: ...here. * config/arm/aarch-common.c: Moved to... * config/arm/aarch-common.cc: ...here. * config/arm/arm-builtins.c: Moved to... * config/arm/arm-builtins.cc: ...here. * config/arm/arm-c.c: Moved to... * config/arm/arm-c.cc: ...here. * config/arm/arm-d.c: Moved to... * config/arm/arm-d.cc: ...here. * config/arm/arm.c: Moved to... * config/arm/arm.cc: ...here. * config/arm/driver-arm.c: Moved to... * config/arm/driver-arm.cc: ...here. * config/avr/avr-c.c: Moved to... * config/avr/avr-c.cc: ...here. * config/avr/avr-devices.c: Moved to... * config/avr/avr-devices.cc: ...here. * config/avr/avr-log.c: Moved to... * config/avr/avr-log.cc: ...here. * config/avr/avr.c: Moved to... * config/avr/avr.cc: ...here. * config/avr/driver-avr.c: Moved to... * config/avr/driver-avr.cc: ...here. * config/avr/gen-avr-mmcu-specs.c: Moved to... * config/avr/gen-avr-mmcu-specs.cc: ...here. * config/avr/gen-avr-mmcu-texi.c: Moved to... * config/avr/gen-avr-mmcu-texi.cc: ...here. * config/bfin/bfin.c: Moved to... * config/bfin/bfin.cc: ...here. * config/bpf/bpf.c: Moved to... * config/bpf/bpf.cc: ...here. * config/bpf/coreout.c: Moved to... * config/bpf/coreout.cc: ...here. * config/c6x/c6x.c: Moved to... * config/c6x/c6x.cc: ...here. * config/cr16/cr16.c: Moved to... * config/cr16/cr16.cc: ...here. * config/cris/cris.c: Moved to... * config/cris/cris.cc: ...here. * config/csky/csky.c: Moved to... * config/csky/csky.cc: ...here. * config/darwin-c.c: Moved to... * config/darwin-c.cc: ...here. * config/darwin-d.c: Moved to... * config/darwin-d.cc: ...here. * config/darwin-driver.c: Moved to... * config/darwin-driver.cc: ...here. * config/darwin-f.c: Moved to... * config/darwin-f.cc: ...here. * config/darwin.c: Moved to... * config/darwin.cc: ...here. * config/default-c.c: Moved to... * config/default-c.cc: ...here. * config/default-d.c: Moved to... * config/default-d.cc: ...here. * config/dragonfly-d.c: Moved to... * config/dragonfly-d.cc: ...here. * config/epiphany/epiphany.c: Moved to... * config/epiphany/epiphany.cc: ...here. * config/epiphany/mode-switch-use.c: Moved to... * config/epiphany/mode-switch-use.cc: ...here. * config/epiphany/resolve-sw-modes.c: Moved to... * config/epiphany/resolve-sw-modes.cc: ...here. * config/fr30/fr30.c: Moved to... * config/fr30/fr30.cc: ...here. * config/freebsd-d.c: Moved to... * config/freebsd-d.cc: ...here. * config/frv/frv.c: Moved to... * config/frv/frv.cc: ...here. * config/ft32/ft32.c: Moved to... * config/ft32/ft32.cc: ...here. * config/gcn/driver-gcn.c: Moved to... * config/gcn/driver-gcn.cc: ...here. * config/gcn/gcn-run.c: Moved to... * config/gcn/gcn-run.cc: ...here. * config/gcn/gcn-tree.c: Moved to... * config/gcn/gcn-tree.cc: ...here. * config/gcn/gcn.c: Moved to... * config/gcn/gcn.cc: ...here. * config/gcn/mkoffload.c: Moved to... * config/gcn/mkoffload.cc: ...here. * config/glibc-c.c: Moved to... * config/glibc-c.cc: ...here. * config/glibc-d.c: Moved to... * config/glibc-d.cc: ...here. * config/h8300/h8300.c: Moved to... * config/h8300/h8300.cc: ...here. * config/host-darwin.c: Moved to... * config/host-darwin.cc: ...here. * config/host-hpux.c: Moved to... * config/host-hpux.cc: ...here. * config/host-linux.c: Moved to... * config/host-linux.cc: ...here. * config/host-netbsd.c: Moved to... * config/host-netbsd.cc: ...here. * config/host-openbsd.c: Moved to... * config/host-openbsd.cc: ...here. * config/host-solaris.c: Moved to... * config/host-solaris.cc: ...here. * config/i386/djgpp.c: Moved to... * config/i386/djgpp.cc: ...here. * config/i386/driver-i386.c: Moved to... * config/i386/driver-i386.cc: ...here. * config/i386/driver-mingw32.c: Moved to... * config/i386/driver-mingw32.cc: ...here. * config/i386/gnu-property.c: Moved to... * config/i386/gnu-property.cc: ...here. * config/i386/host-cygwin.c: Moved to... * config/i386/host-cygwin.cc: ...here. * config/i386/host-i386-darwin.c: Moved to... * config/i386/host-i386-darwin.cc: ...here. * config/i386/host-mingw32.c: Moved to... * config/i386/host-mingw32.cc: ...here. * config/i386/i386-builtins.c: Moved to... * config/i386/i386-builtins.cc: ...here. * config/i386/i386-c.c: Moved to... * config/i386/i386-c.cc: ...here. * config/i386/i386-d.c: Moved to... * config/i386/i386-d.cc: ...here. * config/i386/i386-expand.c: Moved to... * config/i386/i386-expand.cc: ...here. * config/i386/i386-features.c: Moved to... * config/i386/i386-features.cc: ...here. * config/i386/i386-options.c: Moved to... * config/i386/i386-options.cc: ...here. * config/i386/i386.c: Moved to... * config/i386/i386.cc: ...here. * config/i386/intelmic-mkoffload.c: Moved to... * config/i386/intelmic-mkoffload.cc: ...here. * config/i386/msformat-c.c: Moved to... * config/i386/msformat-c.cc: ...here. * config/i386/winnt-cxx.c: Moved to... * config/i386/winnt-cxx.cc: ...here. * config/i386/winnt-d.c: Moved to... * config/i386/winnt-d.cc: ...here. * config/i386/winnt-stubs.c: Moved to... * config/i386/winnt-stubs.cc: ...here. * config/i386/winnt.c: Moved to... * config/i386/winnt.cc: ...here. * config/i386/x86-tune-sched-atom.c: Moved to... * config/i386/x86-tune-sched-atom.cc: ...here. * config/i386/x86-tune-sched-bd.c: Moved to... * config/i386/x86-tune-sched-bd.cc: ...here. * config/i386/x86-tune-sched-core.c: Moved to... * config/i386/x86-tune-sched-core.cc: ...here. * config/i386/x86-tune-sched.c: Moved to... * config/i386/x86-tune-sched.cc: ...here. * config/ia64/ia64-c.c: Moved to... * config/ia64/ia64-c.cc: ...here. * config/ia64/ia64.c: Moved to... * config/ia64/ia64.cc: ...here. * config/iq2000/iq2000.c: Moved to... * config/iq2000/iq2000.cc: ...here. * config/linux.c: Moved to... * config/linux.cc: ...here. * config/lm32/lm32.c: Moved to... * config/lm32/lm32.cc: ...here. * config/m32c/m32c-pragma.c: Moved to... * config/m32c/m32c-pragma.cc: ...here. * config/m32c/m32c.c: Moved to... * config/m32c/m32c.cc: ...here. * config/m32r/m32r.c: Moved to... * config/m32r/m32r.cc: ...here. * config/m68k/m68k.c: Moved to... * config/m68k/m68k.cc: ...here. * config/mcore/mcore.c: Moved to... * config/mcore/mcore.cc: ...here. * config/microblaze/microblaze-c.c: Moved to... * config/microblaze/microblaze-c.cc: ...here. * config/microblaze/microblaze.c: Moved to... * config/microblaze/microblaze.cc: ...here. * config/mips/driver-native.c: Moved to... * config/mips/driver-native.cc: ...here. * config/mips/frame-header-opt.c: Moved to... * config/mips/frame-header-opt.cc: ...here. * config/mips/mips-d.c: Moved to... * config/mips/mips-d.cc: ...here. * config/mips/mips.c: Moved to... * config/mips/mips.cc: ...here. * config/mmix/mmix.c: Moved to... * config/mmix/mmix.cc: ...here. * config/mn10300/mn10300.c: Moved to... * config/mn10300/mn10300.cc: ...here. * config/moxie/moxie.c: Moved to... * config/moxie/moxie.cc: ...here. * config/msp430/driver-msp430.c: Moved to... * config/msp430/driver-msp430.cc: ...here. * config/msp430/msp430-c.c: Moved to... * config/msp430/msp430-c.cc: ...here. * config/msp430/msp430-devices.c: Moved to... * config/msp430/msp430-devices.cc: ...here. * config/msp430/msp430.c: Moved to... * config/msp430/msp430.cc: ...here. * config/nds32/nds32-cost.c: Moved to... * config/nds32/nds32-cost.cc: ...here. * config/nds32/nds32-fp-as-gp.c: Moved to... * config/nds32/nds32-fp-as-gp.cc: ...here. * config/nds32/nds32-intrinsic.c: Moved to... * config/nds32/nds32-intrinsic.cc: ...here. * config/nds32/nds32-isr.c: Moved to... * config/nds32/nds32-isr.cc: ...here. * config/nds32/nds32-md-auxiliary.c: Moved to... * config/nds32/nds32-md-auxiliary.cc: ...here. * config/nds32/nds32-memory-manipulation.c: Moved to... * config/nds32/nds32-memory-manipulation.cc: ...here. * config/nds32/nds32-pipelines-auxiliary.c: Moved to... * config/nds32/nds32-pipelines-auxiliary.cc: ...here. * config/nds32/nds32-predicates.c: Moved to... * config/nds32/nds32-predicates.cc: ...here. * config/nds32/nds32-relax-opt.c: Moved to... * config/nds32/nds32-relax-opt.cc: ...here. * config/nds32/nds32-utils.c: Moved to... * config/nds32/nds32-utils.cc: ...here. * config/nds32/nds32.c: Moved to... * config/nds32/nds32.cc: ...here. * config/netbsd-d.c: Moved to... * config/netbsd-d.cc: ...here. * config/netbsd.c: Moved to... * config/netbsd.cc: ...here. * config/nios2/nios2.c: Moved to... * config/nios2/nios2.cc: ...here. * config/nvptx/mkoffload.c: Moved to... * config/nvptx/mkoffload.cc: ...here. * config/nvptx/nvptx-c.c: Moved to... * config/nvptx/nvptx-c.cc: ...here. * config/nvptx/nvptx.c: Moved to... * config/nvptx/nvptx.cc: ...here. * config/openbsd-d.c: Moved to... * config/openbsd-d.cc: ...here. * config/or1k/or1k.c: Moved to... * config/or1k/or1k.cc: ...here. * config/pa/pa-d.c: Moved to... * config/pa/pa-d.cc: ...here. * config/pa/pa.c: Moved to... * config/pa/pa.cc: ...here. * config/pdp11/pdp11.c: Moved to... * config/pdp11/pdp11.cc: ...here. * config/pru/pru-passes.c: Moved to... * config/pru/pru-passes.cc: ...here. * config/pru/pru-pragma.c: Moved to... * config/pru/pru-pragma.cc: ...here. * config/pru/pru.c: Moved to... * config/pru/pru.cc: ...here. * config/riscv/riscv-builtins.c: Moved to... * config/riscv/riscv-builtins.cc: ...here. * config/riscv/riscv-c.c: Moved to... * config/riscv/riscv-c.cc: ...here. * config/riscv/riscv-d.c: Moved to... * config/riscv/riscv-d.cc: ...here. * config/riscv/riscv-shorten-memrefs.c: Moved to... * config/riscv/riscv-shorten-memrefs.cc: ...here. * config/riscv/riscv-sr.c: Moved to... * config/riscv/riscv-sr.cc: ...here. * config/riscv/riscv.c: Moved to... * config/riscv/riscv.cc: ...here. * config/rl78/rl78-c.c: Moved to... * config/rl78/rl78-c.cc: ...here. * config/rl78/rl78.c: Moved to... * config/rl78/rl78.cc: ...here. * config/rs6000/driver-rs6000.c: Moved to... * config/rs6000/driver-rs6000.cc: ...here. * config/rs6000/host-darwin.c: Moved to... * config/rs6000/host-darwin.cc: ...here. * config/rs6000/host-ppc64-darwin.c: Moved to... * config/rs6000/host-ppc64-darwin.cc: ...here. * config/rs6000/rbtree.c: Moved to... * config/rs6000/rbtree.cc: ...here. * config/rs6000/rs6000-c.c: Moved to... * config/rs6000/rs6000-c.cc: ...here. * config/rs6000/rs6000-call.c: Moved to... * config/rs6000/rs6000-call.cc: ...here. * config/rs6000/rs6000-d.c: Moved to... * config/rs6000/rs6000-d.cc: ...here. * config/rs6000/rs6000-gen-builtins.c: Moved to... * config/rs6000/rs6000-gen-builtins.cc: ...here. * config/rs6000/rs6000-linux.c: Moved to... * config/rs6000/rs6000-linux.cc: ...here. * config/rs6000/rs6000-logue.c: Moved to... * config/rs6000/rs6000-logue.cc: ...here. * config/rs6000/rs6000-p8swap.c: Moved to... * config/rs6000/rs6000-p8swap.cc: ...here. * config/rs6000/rs6000-pcrel-opt.c: Moved to... * config/rs6000/rs6000-pcrel-opt.cc: ...here. * config/rs6000/rs6000-string.c: Moved to... * config/rs6000/rs6000-string.cc: ...here. * config/rs6000/rs6000.c: Moved to... * config/rs6000/rs6000.cc: ...here. * config/rx/rx.c: Moved to... * config/rx/rx.cc: ...here. * config/s390/driver-native.c: Moved to... * config/s390/driver-native.cc: ...here. * config/s390/s390-c.c: Moved to... * config/s390/s390-c.cc: ...here. * config/s390/s390-d.c: Moved to... * config/s390/s390-d.cc: ...here. * config/s390/s390.c: Moved to... * config/s390/s390.cc: ...here. * config/sh/divtab-sh4-300.c: Moved to... * config/sh/divtab-sh4-300.cc: ...here. * config/sh/divtab-sh4.c: Moved to... * config/sh/divtab-sh4.cc: ...here. * config/sh/divtab.c: Moved to... * config/sh/divtab.cc: ...here. * config/sh/sh-c.c: Moved to... * config/sh/sh-c.cc: ...here. * config/sh/sh.c: Moved to... * config/sh/sh.cc: ...here. * config/sol2-c.c: Moved to... * config/sol2-c.cc: ...here. * config/sol2-cxx.c: Moved to... * config/sol2-cxx.cc: ...here. * config/sol2-d.c: Moved to... * config/sol2-d.cc: ...here. * config/sol2-stubs.c: Moved to... * config/sol2-stubs.cc: ...here. * config/sol2.c: Moved to... * config/sol2.cc: ...here. * config/sparc/driver-sparc.c: Moved to... * config/sparc/driver-sparc.cc: ...here. * config/sparc/sparc-c.c: Moved to... * config/sparc/sparc-c.cc: ...here. * config/sparc/sparc-d.c: Moved to... * config/sparc/sparc-d.cc: ...here. * config/sparc/sparc.c: Moved to... * config/sparc/sparc.cc: ...here. * config/stormy16/stormy16.c: Moved to... * config/stormy16/stormy16.cc: ...here. * config/tilegx/mul-tables.c: Moved to... * config/tilegx/mul-tables.cc: ...here. * config/tilegx/tilegx-c.c: Moved to... * config/tilegx/tilegx-c.cc: ...here. * config/tilegx/tilegx.c: Moved to... * config/tilegx/tilegx.cc: ...here. * config/tilepro/mul-tables.c: Moved to... * config/tilepro/mul-tables.cc: ...here. * config/tilepro/tilepro-c.c: Moved to... * config/tilepro/tilepro-c.cc: ...here. * config/tilepro/tilepro.c: Moved to... * config/tilepro/tilepro.cc: ...here. * config/v850/v850-c.c: Moved to... * config/v850/v850-c.cc: ...here. * config/v850/v850.c: Moved to... * config/v850/v850.cc: ...here. * config/vax/vax.c: Moved to... * config/vax/vax.cc: ...here. * config/visium/visium.c: Moved to... * config/visium/visium.cc: ...here. * config/vms/vms-c.c: Moved to... * config/vms/vms-c.cc: ...here. * config/vms/vms-f.c: Moved to... * config/vms/vms-f.cc: ...here. * config/vms/vms.c: Moved to... * config/vms/vms.cc: ...here. * config/vxworks-c.c: Moved to... * config/vxworks-c.cc: ...here. * config/vxworks.c: Moved to... * config/vxworks.cc: ...here. * config/winnt-c.c: Moved to... * config/winnt-c.cc: ...here. * config/xtensa/xtensa.c: Moved to... * config/xtensa/xtensa.cc: ...here. * context.c: Moved to... * context.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * coverage.c: Moved to... * coverage.cc: ...here. * cppbuiltin.c: Moved to... * cppbuiltin.cc: ...here. * cppdefault.c: Moved to... * cppdefault.cc: ...here. * cprop.c: Moved to... * cprop.cc: ...here. * cse.c: Moved to... * cse.cc: ...here. * cselib.c: Moved to... * cselib.cc: ...here. * ctfc.c: Moved to... * ctfc.cc: ...here. * ctfout.c: Moved to... * ctfout.cc: ...here. * data-streamer-in.c: Moved to... * data-streamer-in.cc: ...here. * data-streamer-out.c: Moved to... * data-streamer-out.cc: ...here. * data-streamer.c: Moved to... * data-streamer.cc: ...here. * dbgcnt.c: Moved to... * dbgcnt.cc: ...here. * dbxout.c: Moved to... * dbxout.cc: ...here. * dce.c: Moved to... * dce.cc: ...here. * ddg.c: Moved to... * ddg.cc: ...here. * debug.c: Moved to... * debug.cc: ...here. * df-core.c: Moved to... * df-core.cc: ...here. * df-problems.c: Moved to... * df-problems.cc: ...here. * df-scan.c: Moved to... * df-scan.cc: ...here. * dfp.c: Moved to... * dfp.cc: ...here. * diagnostic-color.c: Moved to... * diagnostic-color.cc: ...here. * diagnostic-show-locus.c: Moved to... * diagnostic-show-locus.cc: ...here. * diagnostic-spec.c: Moved to... * diagnostic-spec.cc: ...here. * diagnostic.c: Moved to... * diagnostic.cc: ...here. * dojump.c: Moved to... * dojump.cc: ...here. * dominance.c: Moved to... * dominance.cc: ...here. * domwalk.c: Moved to... * domwalk.cc: ...here. * double-int.c: Moved to... * double-int.cc: ...here. * dse.c: Moved to... * dse.cc: ...here. * dumpfile.c: Moved to... * dumpfile.cc: ...here. * dwarf2asm.c: Moved to... * dwarf2asm.cc: ...here. * dwarf2cfi.c: Moved to... * dwarf2cfi.cc: ...here. * dwarf2ctf.c: Moved to... * dwarf2ctf.cc: ...here. * dwarf2out.c: Moved to... * dwarf2out.cc: ...here. * early-remat.c: Moved to... * early-remat.cc: ...here. * edit-context.c: Moved to... * edit-context.cc: ...here. * emit-rtl.c: Moved to... * emit-rtl.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * et-forest.c: Moved to... * et-forest.cc: ...here. * except.c: Moved to... * except.cc: ...here. * explow.c: Moved to... * explow.cc: ...here. * expmed.c: Moved to... * expmed.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * fibonacci_heap.c: Moved to... * fibonacci_heap.cc: ...here. * file-find.c: Moved to... * file-find.cc: ...here. * file-prefix-map.c: Moved to... * file-prefix-map.cc: ...here. * final.c: Moved to... * final.cc: ...here. * fixed-value.c: Moved to... * fixed-value.cc: ...here. * fold-const-call.c: Moved to... * fold-const-call.cc: ...here. * fold-const.c: Moved to... * fold-const.cc: ...here. * fp-test.c: Moved to... * fp-test.cc: ...here. * function-tests.c: Moved to... * function-tests.cc: ...here. * function.c: Moved to... * function.cc: ...here. * fwprop.c: Moved to... * fwprop.cc: ...here. * gcc-ar.c: Moved to... * gcc-ar.cc: ...here. * gcc-main.c: Moved to... * gcc-main.cc: ...here. * gcc-rich-location.c: Moved to... * gcc-rich-location.cc: ...here. * gcc.c: Moved to... * gcc.cc: ...here. * gcov-dump.c: Moved to... * gcov-dump.cc: ...here. * gcov-io.c: Moved to... * gcov-io.cc: ...here. * gcov-tool.c: Moved to... * gcov-tool.cc: ...here. * gcov.c: Moved to... * gcov.cc: ...here. * gcse-common.c: Moved to... * gcse-common.cc: ...here. * gcse.c: Moved to... * gcse.cc: ...here. * genattr-common.c: Moved to... * genattr-common.cc: ...here. * genattr.c: Moved to... * genattr.cc: ...here. * genattrtab.c: Moved to... * genattrtab.cc: ...here. * genautomata.c: Moved to... * genautomata.cc: ...here. * gencfn-macros.c: Moved to... * gencfn-macros.cc: ...here. * gencheck.c: Moved to... * gencheck.cc: ...here. * genchecksum.c: Moved to... * genchecksum.cc: ...here. * gencodes.c: Moved to... * gencodes.cc: ...here. * genconditions.c: Moved to... * genconditions.cc: ...here. * genconfig.c: Moved to... * genconfig.cc: ...here. * genconstants.c: Moved to... * genconstants.cc: ...here. * genemit.c: Moved to... * genemit.cc: ...here. * genenums.c: Moved to... * genenums.cc: ...here. * generic-match-head.c: Moved to... * generic-match-head.cc: ...here. * genextract.c: Moved to... * genextract.cc: ...here. * genflags.c: Moved to... * genflags.cc: ...here. * gengenrtl.c: Moved to... * gengenrtl.cc: ...here. * gengtype-parse.c: Moved to... * gengtype-parse.cc: ...here. * gengtype-state.c: Moved to... * gengtype-state.cc: ...here. * gengtype.c: Moved to... * gengtype.cc: ...here. * genhooks.c: Moved to... * genhooks.cc: ...here. * genmatch.c: Moved to... * genmatch.cc: ...here. * genmddeps.c: Moved to... * genmddeps.cc: ...here. * genmddump.c: Moved to... * genmddump.cc: ...here. * genmodes.c: Moved to... * genmodes.cc: ...here. * genopinit.c: Moved to... * genopinit.cc: ...here. * genoutput.c: Moved to... * genoutput.cc: ...here. * genpeep.c: Moved to... * genpeep.cc: ...here. * genpreds.c: Moved to... * genpreds.cc: ...here. * genrecog.c: Moved to... * genrecog.cc: ...here. * gensupport.c: Moved to... * gensupport.cc: ...here. * gentarget-def.c: Moved to... * gentarget-def.cc: ...here. * genversion.c: Moved to... * genversion.cc: ...here. * ggc-common.c: Moved to... * ggc-common.cc: ...here. * ggc-none.c: Moved to... * ggc-none.cc: ...here. * ggc-page.c: Moved to... * ggc-page.cc: ...here. * ggc-tests.c: Moved to... * ggc-tests.cc: ...here. * gimple-builder.c: Moved to... * gimple-builder.cc: ...here. * gimple-expr.c: Moved to... * gimple-expr.cc: ...here. * gimple-fold.c: Moved to... * gimple-fold.cc: ...here. * gimple-iterator.c: Moved to... * gimple-iterator.cc: ...here. * gimple-laddress.c: Moved to... * gimple-laddress.cc: ...here. * gimple-loop-jam.c: Moved to... * gimple-loop-jam.cc: ...here. * gimple-low.c: Moved to... * gimple-low.cc: ...here. * gimple-match-head.c: Moved to... * gimple-match-head.cc: ...here. * gimple-pretty-print.c: Moved to... * gimple-pretty-print.cc: ...here. * gimple-ssa-backprop.c: Moved to... * gimple-ssa-backprop.cc: ...here. * gimple-ssa-evrp-analyze.c: Moved to... * gimple-ssa-evrp-analyze.cc: ...here. * gimple-ssa-evrp.c: Moved to... * gimple-ssa-evrp.cc: ...here. * gimple-ssa-isolate-paths.c: Moved to... * gimple-ssa-isolate-paths.cc: ...here. * gimple-ssa-nonnull-compare.c: Moved to... * gimple-ssa-nonnull-compare.cc: ...here. * gimple-ssa-split-paths.c: Moved to... * gimple-ssa-split-paths.cc: ...here. * gimple-ssa-sprintf.c: Moved to... * gimple-ssa-sprintf.cc: ...here. * gimple-ssa-store-merging.c: Moved to... * gimple-ssa-store-merging.cc: ...here. * gimple-ssa-strength-reduction.c: Moved to... * gimple-ssa-strength-reduction.cc: ...here. * gimple-ssa-warn-alloca.c: Moved to... * gimple-ssa-warn-alloca.cc: ...here. * gimple-ssa-warn-restrict.c: Moved to... * gimple-ssa-warn-restrict.cc: ...here. * gimple-streamer-in.c: Moved to... * gimple-streamer-in.cc: ...here. * gimple-streamer-out.c: Moved to... * gimple-streamer-out.cc: ...here. * gimple-walk.c: Moved to... * gimple-walk.cc: ...here. * gimple-warn-recursion.c: Moved to... * gimple-warn-recursion.cc: ...here. * gimple.c: Moved to... * gimple.cc: ...here. * gimplify-me.c: Moved to... * gimplify-me.cc: ...here. * gimplify.c: Moved to... * gimplify.cc: ...here. * godump.c: Moved to... * godump.cc: ...here. * graph.c: Moved to... * graph.cc: ...here. * graphds.c: Moved to... * graphds.cc: ...here. * graphite-dependences.c: Moved to... * graphite-dependences.cc: ...here. * graphite-isl-ast-to-gimple.c: Moved to... * graphite-isl-ast-to-gimple.cc: ...here. * graphite-optimize-isl.c: Moved to... * graphite-optimize-isl.cc: ...here. * graphite-poly.c: Moved to... * graphite-poly.cc: ...here. * graphite-scop-detection.c: Moved to... * graphite-scop-detection.cc: ...here. * graphite-sese-to-poly.c: Moved to... * graphite-sese-to-poly.cc: ...here. * graphite.c: Moved to... * graphite.cc: ...here. * haifa-sched.c: Moved to... * haifa-sched.cc: ...here. * hash-map-tests.c: Moved to... * hash-map-tests.cc: ...here. * hash-set-tests.c: Moved to... * hash-set-tests.cc: ...here. * hash-table.c: Moved to... * hash-table.cc: ...here. * hooks.c: Moved to... * hooks.cc: ...here. * host-default.c: Moved to... * host-default.cc: ...here. * hw-doloop.c: Moved to... * hw-doloop.cc: ...here. * hwint.c: Moved to... * hwint.cc: ...here. * ifcvt.c: Moved to... * ifcvt.cc: ...here. * inchash.c: Moved to... * inchash.cc: ...here. * incpath.c: Moved to... * incpath.cc: ...here. * init-regs.c: Moved to... * init-regs.cc: ...here. * input.c: Moved to... * input.cc: ...here. * internal-fn.c: Moved to... * internal-fn.cc: ...here. * intl.c: Moved to... * intl.cc: ...here. * ipa-comdats.c: Moved to... * ipa-comdats.cc: ...here. * ipa-cp.c: Moved to... * ipa-cp.cc: ...here. * ipa-devirt.c: Moved to... * ipa-devirt.cc: ...here. * ipa-fnsummary.c: Moved to... * ipa-fnsummary.cc: ...here. * ipa-icf-gimple.c: Moved to... * ipa-icf-gimple.cc: ...here. * ipa-icf.c: Moved to... * ipa-icf.cc: ...here. * ipa-inline-analysis.c: Moved to... * ipa-inline-analysis.cc: ...here. * ipa-inline-transform.c: Moved to... * ipa-inline-transform.cc: ...here. * ipa-inline.c: Moved to... * ipa-inline.cc: ...here. * ipa-modref-tree.c: Moved to... * ipa-modref-tree.cc: ...here. * ipa-modref.c: Moved to... * ipa-modref.cc: ...here. * ipa-param-manipulation.c: Moved to... * ipa-param-manipulation.cc: ...here. * ipa-polymorphic-call.c: Moved to... * ipa-polymorphic-call.cc: ...here. * ipa-predicate.c: Moved to... * ipa-predicate.cc: ...here. * ipa-profile.c: Moved to... * ipa-profile.cc: ...here. * ipa-prop.c: Moved to... * ipa-prop.cc: ...here. * ipa-pure-const.c: Moved to... * ipa-pure-const.cc: ...here. * ipa-ref.c: Moved to... * ipa-ref.cc: ...here. * ipa-reference.c: Moved to... * ipa-reference.cc: ...here. * ipa-split.c: Moved to... * ipa-split.cc: ...here. * ipa-sra.c: Moved to... * ipa-sra.cc: ...here. * ipa-utils.c: Moved to... * ipa-utils.cc: ...here. * ipa-visibility.c: Moved to... * ipa-visibility.cc: ...here. * ipa.c: Moved to... * ipa.cc: ...here. * ira-build.c: Moved to... * ira-build.cc: ...here. * ira-color.c: Moved to... * ira-color.cc: ...here. * ira-conflicts.c: Moved to... * ira-conflicts.cc: ...here. * ira-costs.c: Moved to... * ira-costs.cc: ...here. * ira-emit.c: Moved to... * ira-emit.cc: ...here. * ira-lives.c: Moved to... * ira-lives.cc: ...here. * ira.c: Moved to... * ira.cc: ...here. * jump.c: Moved to... * jump.cc: ...here. * langhooks.c: Moved to... * langhooks.cc: ...here. * lcm.c: Moved to... * lcm.cc: ...here. * lists.c: Moved to... * lists.cc: ...here. * loop-doloop.c: Moved to... * loop-doloop.cc: ...here. * loop-init.c: Moved to... * loop-init.cc: ...here. * loop-invariant.c: Moved to... * loop-invariant.cc: ...here. * loop-iv.c: Moved to... * loop-iv.cc: ...here. * loop-unroll.c: Moved to... * loop-unroll.cc: ...here. * lower-subreg.c: Moved to... * lower-subreg.cc: ...here. * lra-assigns.c: Moved to... * lra-assigns.cc: ...here. * lra-coalesce.c: Moved to... * lra-coalesce.cc: ...here. * lra-constraints.c: Moved to... * lra-constraints.cc: ...here. * lra-eliminations.c: Moved to... * lra-eliminations.cc: ...here. * lra-lives.c: Moved to... * lra-lives.cc: ...here. * lra-remat.c: Moved to... * lra-remat.cc: ...here. * lra-spills.c: Moved to... * lra-spills.cc: ...here. * lra.c: Moved to... * lra.cc: ...here. * lto-cgraph.c: Moved to... * lto-cgraph.cc: ...here. * lto-compress.c: Moved to... * lto-compress.cc: ...here. * lto-opts.c: Moved to... * lto-opts.cc: ...here. * lto-section-in.c: Moved to... * lto-section-in.cc: ...here. * lto-section-out.c: Moved to... * lto-section-out.cc: ...here. * lto-streamer-in.c: Moved to... * lto-streamer-in.cc: ...here. * lto-streamer-out.c: Moved to... * lto-streamer-out.cc: ...here. * lto-streamer.c: Moved to... * lto-streamer.cc: ...here. * lto-wrapper.c: Moved to... * lto-wrapper.cc: ...here. * main.c: Moved to... * main.cc: ...here. * mcf.c: Moved to... * mcf.cc: ...here. * mode-switching.c: Moved to... * mode-switching.cc: ...here. * modulo-sched.c: Moved to... * modulo-sched.cc: ...here. * multiple_target.c: Moved to... * multiple_target.cc: ...here. * omp-expand.c: Moved to... * omp-expand.cc: ...here. * omp-general.c: Moved to... * omp-general.cc: ...here. * omp-low.c: Moved to... * omp-low.cc: ...here. * omp-offload.c: Moved to... * omp-offload.cc: ...here. * omp-simd-clone.c: Moved to... * omp-simd-clone.cc: ...here. * opt-suggestions.c: Moved to... * opt-suggestions.cc: ...here. * optabs-libfuncs.c: Moved to... * optabs-libfuncs.cc: ...here. * optabs-query.c: Moved to... * optabs-query.cc: ...here. * optabs-tree.c: Moved to... * optabs-tree.cc: ...here. * optabs.c: Moved to... * optabs.cc: ...here. * opts-common.c: Moved to... * opts-common.cc: ...here. * opts-global.c: Moved to... * opts-global.cc: ...here. * opts.c: Moved to... * opts.cc: ...here. * passes.c: Moved to... * passes.cc: ...here. * plugin.c: Moved to... * plugin.cc: ...here. * postreload-gcse.c: Moved to... * postreload-gcse.cc: ...here. * postreload.c: Moved to... * postreload.cc: ...here. * predict.c: Moved to... * predict.cc: ...here. * prefix.c: Moved to... * prefix.cc: ...here. * pretty-print.c: Moved to... * pretty-print.cc: ...here. * print-rtl-function.c: Moved to... * print-rtl-function.cc: ...here. * print-rtl.c: Moved to... * print-rtl.cc: ...here. * print-tree.c: Moved to... * print-tree.cc: ...here. * profile-count.c: Moved to... * profile-count.cc: ...here. * profile.c: Moved to... * profile.cc: ...here. * read-md.c: Moved to... * read-md.cc: ...here. * read-rtl-function.c: Moved to... * read-rtl-function.cc: ...here. * read-rtl.c: Moved to... * read-rtl.cc: ...here. * real.c: Moved to... * real.cc: ...here. * realmpfr.c: Moved to... * realmpfr.cc: ...here. * recog.c: Moved to... * recog.cc: ...here. * ree.c: Moved to... * ree.cc: ...here. * reg-stack.c: Moved to... * reg-stack.cc: ...here. * regcprop.c: Moved to... * regcprop.cc: ...here. * reginfo.c: Moved to... * reginfo.cc: ...here. * regrename.c: Moved to... * regrename.cc: ...here. * regstat.c: Moved to... * regstat.cc: ...here. * reload.c: Moved to... * reload.cc: ...here. * reload1.c: Moved to... * reload1.cc: ...here. * reorg.c: Moved to... * reorg.cc: ...here. * resource.c: Moved to... * resource.cc: ...here. * rtl-error.c: Moved to... * rtl-error.cc: ...here. * rtl-tests.c: Moved to... * rtl-tests.cc: ...here. * rtl.c: Moved to... * rtl.cc: ...here. * rtlanal.c: Moved to... * rtlanal.cc: ...here. * rtlhash.c: Moved to... * rtlhash.cc: ...here. * rtlhooks.c: Moved to... * rtlhooks.cc: ...here. * rtx-vector-builder.c: Moved to... * rtx-vector-builder.cc: ...here. * run-rtl-passes.c: Moved to... * run-rtl-passes.cc: ...here. * sancov.c: Moved to... * sancov.cc: ...here. * sanopt.c: Moved to... * sanopt.cc: ...here. * sbitmap.c: Moved to... * sbitmap.cc: ...here. * sched-deps.c: Moved to... * sched-deps.cc: ...here. * sched-ebb.c: Moved to... * sched-ebb.cc: ...here. * sched-rgn.c: Moved to... * sched-rgn.cc: ...here. * sel-sched-dump.c: Moved to... * sel-sched-dump.cc: ...here. * sel-sched-ir.c: Moved to... * sel-sched-ir.cc: ...here. * sel-sched.c: Moved to... * sel-sched.cc: ...here. * selftest-diagnostic.c: Moved to... * selftest-diagnostic.cc: ...here. * selftest-rtl.c: Moved to... * selftest-rtl.cc: ...here. * selftest-run-tests.c: Moved to... * selftest-run-tests.cc: ...here. * selftest.c: Moved to... * selftest.cc: ...here. * sese.c: Moved to... * sese.cc: ...here. * shrink-wrap.c: Moved to... * shrink-wrap.cc: ...here. * simplify-rtx.c: Moved to... * simplify-rtx.cc: ...here. * sparseset.c: Moved to... * sparseset.cc: ...here. * spellcheck-tree.c: Moved to... * spellcheck-tree.cc: ...here. * spellcheck.c: Moved to... * spellcheck.cc: ...here. * sreal.c: Moved to... * sreal.cc: ...here. * stack-ptr-mod.c: Moved to... * stack-ptr-mod.cc: ...here. * statistics.c: Moved to... * statistics.cc: ...here. * stmt.c: Moved to... * stmt.cc: ...here. * stor-layout.c: Moved to... * stor-layout.cc: ...here. * store-motion.c: Moved to... * store-motion.cc: ...here. * streamer-hooks.c: Moved to... * streamer-hooks.cc: ...here. * stringpool.c: Moved to... * stringpool.cc: ...here. * substring-locations.c: Moved to... * substring-locations.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * target-globals.c: Moved to... * target-globals.cc: ...here. * targhooks.c: Moved to... * targhooks.cc: ...here. * timevar.c: Moved to... * timevar.cc: ...here. * toplev.c: Moved to... * toplev.cc: ...here. * tracer.c: Moved to... * tracer.cc: ...here. * trans-mem.c: Moved to... * trans-mem.cc: ...here. * tree-affine.c: Moved to... * tree-affine.cc: ...here. * tree-call-cdce.c: Moved to... * tree-call-cdce.cc: ...here. * tree-cfg.c: Moved to... * tree-cfg.cc: ...here. * tree-cfgcleanup.c: Moved to... * tree-cfgcleanup.cc: ...here. * tree-chrec.c: Moved to... * tree-chrec.cc: ...here. * tree-complex.c: Moved to... * tree-complex.cc: ...here. * tree-data-ref.c: Moved to... * tree-data-ref.cc: ...here. * tree-dfa.c: Moved to... * tree-dfa.cc: ...here. * tree-diagnostic.c: Moved to... * tree-diagnostic.cc: ...here. * tree-dump.c: Moved to... * tree-dump.cc: ...here. * tree-eh.c: Moved to... * tree-eh.cc: ...here. * tree-emutls.c: Moved to... * tree-emutls.cc: ...here. * tree-if-conv.c: Moved to... * tree-if-conv.cc: ...here. * tree-inline.c: Moved to... * tree-inline.cc: ...here. * tree-into-ssa.c: Moved to... * tree-into-ssa.cc: ...here. * tree-iterator.c: Moved to... * tree-iterator.cc: ...here. * tree-loop-distribution.c: Moved to... * tree-loop-distribution.cc: ...here. * tree-nested.c: Moved to... * tree-nested.cc: ...here. * tree-nrv.c: Moved to... * tree-nrv.cc: ...here. * tree-object-size.c: Moved to... * tree-object-size.cc: ...here. * tree-outof-ssa.c: Moved to... * tree-outof-ssa.cc: ...here. * tree-parloops.c: Moved to... * tree-parloops.cc: ...here. * tree-phinodes.c: Moved to... * tree-phinodes.cc: ...here. * tree-predcom.c: Moved to... * tree-predcom.cc: ...here. * tree-pretty-print.c: Moved to... * tree-pretty-print.cc: ...here. * tree-profile.c: Moved to... * tree-profile.cc: ...here. * tree-scalar-evolution.c: Moved to... * tree-scalar-evolution.cc: ...here. * tree-sra.c: Moved to... * tree-sra.cc: ...here. * tree-ssa-address.c: Moved to... * tree-ssa-address.cc: ...here. * tree-ssa-alias.c: Moved to... * tree-ssa-alias.cc: ...here. * tree-ssa-ccp.c: Moved to... * tree-ssa-ccp.cc: ...here. * tree-ssa-coalesce.c: Moved to... * tree-ssa-coalesce.cc: ...here. * tree-ssa-copy.c: Moved to... * tree-ssa-copy.cc: ...here. * tree-ssa-dce.c: Moved to... * tree-ssa-dce.cc: ...here. * tree-ssa-dom.c: Moved to... * tree-ssa-dom.cc: ...here. * tree-ssa-dse.c: Moved to... * tree-ssa-dse.cc: ...here. * tree-ssa-forwprop.c: Moved to... * tree-ssa-forwprop.cc: ...here. * tree-ssa-ifcombine.c: Moved to... * tree-ssa-ifcombine.cc: ...here. * tree-ssa-live.c: Moved to... * tree-ssa-live.cc: ...here. * tree-ssa-loop-ch.c: Moved to... * tree-ssa-loop-ch.cc: ...here. * tree-ssa-loop-im.c: Moved to... * tree-ssa-loop-im.cc: ...here. * tree-ssa-loop-ivcanon.c: Moved to... * tree-ssa-loop-ivcanon.cc: ...here. * tree-ssa-loop-ivopts.c: Moved to... * tree-ssa-loop-ivopts.cc: ...here. * tree-ssa-loop-manip.c: Moved to... * tree-ssa-loop-manip.cc: ...here. * tree-ssa-loop-niter.c: Moved to... * tree-ssa-loop-niter.cc: ...here. * tree-ssa-loop-prefetch.c: Moved to... * tree-ssa-loop-prefetch.cc: ...here. * tree-ssa-loop-split.c: Moved to... * tree-ssa-loop-split.cc: ...here. * tree-ssa-loop-unswitch.c: Moved to... * tree-ssa-loop-unswitch.cc: ...here. * tree-ssa-loop.c: Moved to... * tree-ssa-loop.cc: ...here. * tree-ssa-math-opts.c: Moved to... * tree-ssa-math-opts.cc: ...here. * tree-ssa-operands.c: Moved to... * tree-ssa-operands.cc: ...here. * tree-ssa-phiopt.c: Moved to... * tree-ssa-phiopt.cc: ...here. * tree-ssa-phiprop.c: Moved to... * tree-ssa-phiprop.cc: ...here. * tree-ssa-pre.c: Moved to... * tree-ssa-pre.cc: ...here. * tree-ssa-propagate.c: Moved to... * tree-ssa-propagate.cc: ...here. * tree-ssa-reassoc.c: Moved to... * tree-ssa-reassoc.cc: ...here. * tree-ssa-sccvn.c: Moved to... * tree-ssa-sccvn.cc: ...here. * tree-ssa-scopedtables.c: Moved to... * tree-ssa-scopedtables.cc: ...here. * tree-ssa-sink.c: Moved to... * tree-ssa-sink.cc: ...here. * tree-ssa-strlen.c: Moved to... * tree-ssa-strlen.cc: ...here. * tree-ssa-structalias.c: Moved to... * tree-ssa-structalias.cc: ...here. * tree-ssa-tail-merge.c: Moved to... * tree-ssa-tail-merge.cc: ...here. * tree-ssa-ter.c: Moved to... * tree-ssa-ter.cc: ...here. * tree-ssa-threadbackward.c: Moved to... * tree-ssa-threadbackward.cc: ...here. * tree-ssa-threadedge.c: Moved to... * tree-ssa-threadedge.cc: ...here. * tree-ssa-threadupdate.c: Moved to... * tree-ssa-threadupdate.cc: ...here. * tree-ssa-uncprop.c: Moved to... * tree-ssa-uncprop.cc: ...here. * tree-ssa-uninit.c: Moved to... * tree-ssa-uninit.cc: ...here. * tree-ssa.c: Moved to... * tree-ssa.cc: ...here. * tree-ssanames.c: Moved to... * tree-ssanames.cc: ...here. * tree-stdarg.c: Moved to... * tree-stdarg.cc: ...here. * tree-streamer-in.c: Moved to... * tree-streamer-in.cc: ...here. * tree-streamer-out.c: Moved to... * tree-streamer-out.cc: ...here. * tree-streamer.c: Moved to... * tree-streamer.cc: ...here. * tree-switch-conversion.c: Moved to... * tree-switch-conversion.cc: ...here. * tree-tailcall.c: Moved to... * tree-tailcall.cc: ...here. * tree-vect-data-refs.c: Moved to... * tree-vect-data-refs.cc: ...here. * tree-vect-generic.c: Moved to... * tree-vect-generic.cc: ...here. * tree-vect-loop-manip.c: Moved to... * tree-vect-loop-manip.cc: ...here. * tree-vect-loop.c: Moved to... * tree-vect-loop.cc: ...here. * tree-vect-patterns.c: Moved to... * tree-vect-patterns.cc: ...here. * tree-vect-slp-patterns.c: Moved to... * tree-vect-slp-patterns.cc: ...here. * tree-vect-slp.c: Moved to... * tree-vect-slp.cc: ...here. * tree-vect-stmts.c: Moved to... * tree-vect-stmts.cc: ...here. * tree-vector-builder.c: Moved to... * tree-vector-builder.cc: ...here. * tree-vectorizer.c: Moved to... * tree-vectorizer.cc: ...here. * tree-vrp.c: Moved to... * tree-vrp.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * tsan.c: Moved to... * tsan.cc: ...here. * typed-splay-tree.c: Moved to... * typed-splay-tree.cc: ...here. * ubsan.c: Moved to... * ubsan.cc: ...here. * valtrack.c: Moved to... * valtrack.cc: ...here. * value-prof.c: Moved to... * value-prof.cc: ...here. * var-tracking.c: Moved to... * var-tracking.cc: ...here. * varasm.c: Moved to... * varasm.cc: ...here. * varpool.c: Moved to... * varpool.cc: ...here. * vec-perm-indices.c: Moved to... * vec-perm-indices.cc: ...here. * vec.c: Moved to... * vec.cc: ...here. * vmsdbgout.c: Moved to... * vmsdbgout.cc: ...here. * vr-values.c: Moved to... * vr-values.cc: ...here. * vtable-verify.c: Moved to... * vtable-verify.cc: ...here. * web.c: Moved to... * web.cc: ...here. * xcoffout.c: Moved to... * xcoffout.cc: ...here. gcc/c-family/ChangeLog: * c-ada-spec.c: Moved to... * c-ada-spec.cc: ...here. * c-attribs.c: Moved to... * c-attribs.cc: ...here. * c-common.c: Moved to... * c-common.cc: ...here. * c-cppbuiltin.c: Moved to... * c-cppbuiltin.cc: ...here. * c-dump.c: Moved to... * c-dump.cc: ...here. * c-format.c: Moved to... * c-format.cc: ...here. * c-gimplify.c: Moved to... * c-gimplify.cc: ...here. * c-indentation.c: Moved to... * c-indentation.cc: ...here. * c-lex.c: Moved to... * c-lex.cc: ...here. * c-omp.c: Moved to... * c-omp.cc: ...here. * c-opts.c: Moved to... * c-opts.cc: ...here. * c-pch.c: Moved to... * c-pch.cc: ...here. * c-ppoutput.c: Moved to... * c-ppoutput.cc: ...here. * c-pragma.c: Moved to... * c-pragma.cc: ...here. * c-pretty-print.c: Moved to... * c-pretty-print.cc: ...here. * c-semantics.c: Moved to... * c-semantics.cc: ...here. * c-ubsan.c: Moved to... * c-ubsan.cc: ...here. * c-warn.c: Moved to... * c-warn.cc: ...here. * cppspec.c: Moved to... * cppspec.cc: ...here. * stub-objc.c: Moved to... * stub-objc.cc: ...here. gcc/c/ChangeLog: * c-aux-info.c: Moved to... * c-aux-info.cc: ...here. * c-convert.c: Moved to... * c-convert.cc: ...here. * c-decl.c: Moved to... * c-decl.cc: ...here. * c-errors.c: Moved to... * c-errors.cc: ...here. * c-fold.c: Moved to... * c-fold.cc: ...here. * c-lang.c: Moved to... * c-lang.cc: ...here. * c-objc-common.c: Moved to... * c-objc-common.cc: ...here. * c-parser.c: Moved to... * c-parser.cc: ...here. * c-typeck.c: Moved to... * c-typeck.cc: ...here. * gccspec.c: Moved to... * gccspec.cc: ...here. * gimple-parser.c: Moved to... * gimple-parser.cc: ...here. gcc/cp/ChangeLog: * call.c: Moved to... * call.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constexpr.c: Moved to... * constexpr.cc: ...here. * cp-gimplify.c: Moved to... * cp-gimplify.cc: ...here. * cp-lang.c: Moved to... * cp-lang.cc: ...here. * cp-objcp-common.c: Moved to... * cp-objcp-common.cc: ...here. * cp-ubsan.c: Moved to... * cp-ubsan.cc: ...here. * cvt.c: Moved to... * cvt.cc: ...here. * cxx-pretty-print.c: Moved to... * cxx-pretty-print.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * decl2.c: Moved to... * decl2.cc: ...here. * dump.c: Moved to... * dump.cc: ...here. * error.c: Moved to... * error.cc: ...here. * except.c: Moved to... * except.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * friend.c: Moved to... * friend.cc: ...here. * g++spec.c: Moved to... * g++spec.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lambda.c: Moved to... * lambda.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * mangle.c: Moved to... * mangle.cc: ...here. * method.c: Moved to... * method.cc: ...here. * name-lookup.c: Moved to... * name-lookup.cc: ...here. * optimize.c: Moved to... * optimize.cc: ...here. * parser.c: Moved to... * parser.cc: ...here. * pt.c: Moved to... * pt.cc: ...here. * ptree.c: Moved to... * ptree.cc: ...here. * rtti.c: Moved to... * rtti.cc: ...here. * search.c: Moved to... * search.cc: ...here. * semantics.c: Moved to... * semantics.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * typeck.c: Moved to... * typeck.cc: ...here. * typeck2.c: Moved to... * typeck2.cc: ...here. * vtable-class-hierarchy.c: Moved to... * vtable-class-hierarchy.cc: ...here. gcc/fortran/ChangeLog: * arith.c: Moved to... * arith.cc: ...here. * array.c: Moved to... * array.cc: ...here. * bbt.c: Moved to... * bbt.cc: ...here. * check.c: Moved to... * check.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constructor.c: Moved to... * constructor.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * cpp.c: Moved to... * cpp.cc: ...here. * data.c: Moved to... * data.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * dependency.c: Moved to... * dependency.cc: ...here. * dump-parse-tree.c: Moved to... * dump-parse-tree.cc: ...here. * error.c: Moved to... * error.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * f95-lang.c: Moved to... * f95-lang.cc: ...here. * frontend-passes.c: Moved to... * frontend-passes.cc: ...here. * gfortranspec.c: Moved to... * gfortranspec.cc: ...here. * interface.c: Moved to... * interface.cc: ...here. * intrinsic.c: Moved to... * intrinsic.cc: ...here. * io.c: Moved to... * io.cc: ...here. * iresolve.c: Moved to... * iresolve.cc: ...here. * match.c: Moved to... * match.cc: ...here. * matchexp.c: Moved to... * matchexp.cc: ...here. * misc.c: Moved to... * misc.cc: ...here. * module.c: Moved to... * module.cc: ...here. * openmp.c: Moved to... * openmp.cc: ...here. * options.c: Moved to... * options.cc: ...here. * parse.c: Moved to... * parse.cc: ...here. * primary.c: Moved to... * primary.cc: ...here. * resolve.c: Moved to... * resolve.cc: ...here. * scanner.c: Moved to... * scanner.cc: ...here. * simplify.c: Moved to... * simplify.cc: ...here. * st.c: Moved to... * st.cc: ...here. * symbol.c: Moved to... * symbol.cc: ...here. * target-memory.c: Moved to... * target-memory.cc: ...here. * trans-array.c: Moved to... * trans-array.cc: ...here. * trans-common.c: Moved to... * trans-common.cc: ...here. * trans-const.c: Moved to... * trans-const.cc: ...here. * trans-decl.c: Moved to... * trans-decl.cc: ...here. * trans-expr.c: Moved to... * trans-expr.cc: ...here. * trans-intrinsic.c: Moved to... * trans-intrinsic.cc: ...here. * trans-io.c: Moved to... * trans-io.cc: ...here. * trans-openmp.c: Moved to... * trans-openmp.cc: ...here. * trans-stmt.c: Moved to... * trans-stmt.cc: ...here. * trans-types.c: Moved to... * trans-types.cc: ...here. * trans.c: Moved to... * trans.cc: ...here. gcc/go/ChangeLog: * go-backend.c: Moved to... * go-backend.cc: ...here. * go-lang.c: Moved to... * go-lang.cc: ...here. * gospec.c: Moved to... * gospec.cc: ...here. gcc/jit/ChangeLog: * dummy-frontend.c: Moved to... * dummy-frontend.cc: ...here. * jit-builtins.c: Moved to... * jit-builtins.cc: ...here. * jit-logging.c: Moved to... * jit-logging.cc: ...here. * jit-playback.c: Moved to... * jit-playback.cc: ...here. * jit-recording.c: Moved to... * jit-recording.cc: ...here. * jit-result.c: Moved to... * jit-result.cc: ...here. * jit-spec.c: Moved to... * jit-spec.cc: ...here. * jit-tempdir.c: Moved to... * jit-tempdir.cc: ...here. * jit-w32.c: Moved to... * jit-w32.cc: ...here. * libgccjit.c: Moved to... * libgccjit.cc: ...here. gcc/lto/ChangeLog: * common.c: Moved to... * common.cc: ...here. * lto-common.c: Moved to... * lto-common.cc: ...here. * lto-dump.c: Moved to... * lto-dump.cc: ...here. * lto-lang.c: Moved to... * lto-lang.cc: ...here. * lto-object.c: Moved to... * lto-object.cc: ...here. * lto-partition.c: Moved to... * lto-partition.cc: ...here. * lto-symtab.c: Moved to... * lto-symtab.cc: ...here. * lto.c: Moved to... * lto.cc: ...here. gcc/objc/ChangeLog: * objc-act.c: Moved to... * objc-act.cc: ...here. * objc-encoding.c: Moved to... * objc-encoding.cc: ...here. * objc-gnu-runtime-abi-01.c: Moved to... * objc-gnu-runtime-abi-01.cc: ...here. * objc-lang.c: Moved to... * objc-lang.cc: ...here. * objc-map.c: Moved to... * objc-map.cc: ...here. * objc-next-runtime-abi-01.c: Moved to... * objc-next-runtime-abi-01.cc: ...here. * objc-next-runtime-abi-02.c: Moved to... * objc-next-runtime-abi-02.cc: ...here. * objc-runtime-shared-support.c: Moved to... * objc-runtime-shared-support.cc: ...here. gcc/objcp/ChangeLog: * objcp-decl.c: Moved to... * objcp-decl.cc: ...here. * objcp-lang.c: Moved to... * objcp-lang.cc: ...here. libcpp/ChangeLog: * charset.c: Moved to... * charset.cc: ...here. * directives.c: Moved to... * directives.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * files.c: Moved to... * files.cc: ...here. * identifiers.c: Moved to... * identifiers.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * line-map.c: Moved to... * line-map.cc: ...here. * macro.c: Moved to... * macro.cc: ...here. * makeucnid.c: Moved to... * makeucnid.cc: ...here. * mkdeps.c: Moved to... * mkdeps.cc: ...here. * pch.c: Moved to... * pch.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * traditional.c: Moved to... * traditional.cc: ...here.
Diffstat (limited to 'gcc/cp/method.cc')
-rw-r--r--gcc/cp/method.cc3506
1 files changed, 3506 insertions, 0 deletions
diff --git a/gcc/cp/method.cc b/gcc/cp/method.cc
new file mode 100644
index 0000000..fe1147c
--- /dev/null
+++ b/gcc/cp/method.cc
@@ -0,0 +1,3506 @@
+/* Handle the hair of processing (but not expanding) inline functions.
+ Also manage function and variable name overloading.
+ Copyright (C) 1987-2022 Free Software Foundation, Inc.
+ Contributed by Michael Tiemann (tiemann@cygnus.com)
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+
+/* Handle method declarations. */
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "target.h"
+#include "cp-tree.h"
+#include "stringpool.h"
+#include "cgraph.h"
+#include "varasm.h"
+#include "toplev.h"
+#include "intl.h"
+#include "common/common-target.h"
+
+static void do_build_copy_assign (tree);
+static void do_build_copy_constructor (tree);
+static tree make_alias_for_thunk (tree);
+
+/* Called once to initialize method.c. */
+
+void
+init_method (void)
+{
+ init_mangle ();
+}
+
+/* Return a this or result adjusting thunk to FUNCTION. THIS_ADJUSTING
+ indicates whether it is a this or result adjusting thunk.
+ FIXED_OFFSET and VIRTUAL_OFFSET indicate how to do the adjustment
+ (see thunk_adjust). VIRTUAL_OFFSET can be NULL, but FIXED_OFFSET
+ never is. VIRTUAL_OFFSET is the /index/ into the vtable for this
+ adjusting thunks, we scale it to a byte offset. For covariant
+ thunks VIRTUAL_OFFSET is the virtual binfo. You must post process
+ the returned thunk with finish_thunk. */
+
+tree
+make_thunk (tree function, bool this_adjusting,
+ tree fixed_offset, tree virtual_offset)
+{
+ HOST_WIDE_INT d;
+ tree thunk;
+
+ gcc_assert (TREE_CODE (function) == FUNCTION_DECL);
+ /* We can have this thunks to covariant thunks, but not vice versa. */
+ gcc_assert (!DECL_THIS_THUNK_P (function));
+ gcc_assert (!DECL_RESULT_THUNK_P (function) || this_adjusting);
+
+ /* Scale the VIRTUAL_OFFSET to be in terms of bytes. */
+ if (this_adjusting && virtual_offset)
+ virtual_offset
+ = size_binop (MULT_EXPR,
+ virtual_offset,
+ convert (ssizetype,
+ TYPE_SIZE_UNIT (vtable_entry_type)));
+
+ d = tree_to_shwi (fixed_offset);
+
+ /* See if we already have the thunk in question. For this_adjusting
+ thunks VIRTUAL_OFFSET will be an INTEGER_CST, for covariant thunks it
+ will be a BINFO. */
+ for (thunk = DECL_THUNKS (function); thunk; thunk = DECL_CHAIN (thunk))
+ if (DECL_THIS_THUNK_P (thunk) == this_adjusting
+ && THUNK_FIXED_OFFSET (thunk) == d
+ && !virtual_offset == !THUNK_VIRTUAL_OFFSET (thunk)
+ && (!virtual_offset
+ || (this_adjusting
+ ? tree_int_cst_equal (THUNK_VIRTUAL_OFFSET (thunk),
+ virtual_offset)
+ : THUNK_VIRTUAL_OFFSET (thunk) == virtual_offset)))
+ return thunk;
+
+ /* All thunks must be created before FUNCTION is actually emitted;
+ the ABI requires that all thunks be emitted together with the
+ function to which they transfer control. */
+ gcc_assert (!TREE_ASM_WRITTEN (function));
+ /* Likewise, we can only be adding thunks to a function declared in
+ the class currently being laid out. */
+ gcc_assert (TYPE_SIZE (DECL_CONTEXT (function))
+ && TYPE_BEING_DEFINED (DECL_CONTEXT (function)));
+
+ thunk = build_decl (DECL_SOURCE_LOCATION (function),
+ FUNCTION_DECL, NULL_TREE, TREE_TYPE (function));
+ DECL_LANG_SPECIFIC (thunk) = DECL_LANG_SPECIFIC (function);
+ cxx_dup_lang_specific_decl (thunk);
+ DECL_VIRTUAL_P (thunk) = true;
+ SET_DECL_THUNKS (thunk, NULL_TREE);
+
+ DECL_CONTEXT (thunk) = DECL_CONTEXT (function);
+ TREE_READONLY (thunk) = TREE_READONLY (function);
+ TREE_THIS_VOLATILE (thunk) = TREE_THIS_VOLATILE (function);
+ TREE_PUBLIC (thunk) = TREE_PUBLIC (function);
+ SET_DECL_THUNK_P (thunk, this_adjusting);
+ THUNK_TARGET (thunk) = function;
+ THUNK_FIXED_OFFSET (thunk) = d;
+ THUNK_VIRTUAL_OFFSET (thunk) = virtual_offset;
+ THUNK_ALIAS (thunk) = NULL_TREE;
+
+ DECL_INTERFACE_KNOWN (thunk) = 1;
+ DECL_NOT_REALLY_EXTERN (thunk) = 1;
+ DECL_COMDAT (thunk) = DECL_COMDAT (function);
+ DECL_SAVED_AUTO_RETURN_TYPE (thunk) = NULL;
+ /* The thunk itself is not a constructor or destructor, even if
+ the thing it is thunking to is. */
+ DECL_CXX_DESTRUCTOR_P (thunk) = 0;
+ DECL_CXX_CONSTRUCTOR_P (thunk) = 0;
+ DECL_EXTERNAL (thunk) = 1;
+ DECL_ARTIFICIAL (thunk) = 1;
+ /* The THUNK is not a pending inline, even if the FUNCTION is. */
+ DECL_PENDING_INLINE_P (thunk) = 0;
+ DECL_DECLARED_INLINE_P (thunk) = 0;
+ /* Nor is it a template instantiation. */
+ DECL_USE_TEMPLATE (thunk) = 0;
+ DECL_TEMPLATE_INFO (thunk) = NULL;
+
+ /* Add it to the list of thunks associated with FUNCTION. */
+ DECL_CHAIN (thunk) = DECL_THUNKS (function);
+ SET_DECL_THUNKS (function, thunk);
+
+ return thunk;
+}
+
+/* Finish THUNK, a thunk decl. */
+
+void
+finish_thunk (tree thunk)
+{
+ tree function, name;
+ tree fixed_offset = ssize_int (THUNK_FIXED_OFFSET (thunk));
+ tree virtual_offset = THUNK_VIRTUAL_OFFSET (thunk);
+
+ gcc_assert (!DECL_NAME (thunk) && DECL_THUNK_P (thunk));
+ if (virtual_offset && DECL_RESULT_THUNK_P (thunk))
+ virtual_offset = BINFO_VPTR_FIELD (virtual_offset);
+ function = THUNK_TARGET (thunk);
+ name = mangle_thunk (function, DECL_THIS_THUNK_P (thunk),
+ fixed_offset, virtual_offset, thunk);
+
+ /* We can end up with declarations of (logically) different
+ covariant thunks, that do identical adjustments. The two thunks
+ will be adjusting between within different hierarchies, which
+ happen to have the same layout. We must nullify one of them to
+ refer to the other. */
+ if (DECL_RESULT_THUNK_P (thunk))
+ {
+ tree cov_probe;
+
+ for (cov_probe = DECL_THUNKS (function);
+ cov_probe; cov_probe = DECL_CHAIN (cov_probe))
+ if (DECL_NAME (cov_probe) == name)
+ {
+ gcc_assert (!DECL_THUNKS (thunk));
+ THUNK_ALIAS (thunk) = (THUNK_ALIAS (cov_probe)
+ ? THUNK_ALIAS (cov_probe) : cov_probe);
+ break;
+ }
+ }
+
+ DECL_NAME (thunk) = name;
+ SET_DECL_ASSEMBLER_NAME (thunk, name);
+}
+
+static GTY (()) int thunk_labelno;
+
+/* Create a static alias to target. */
+
+tree
+make_alias_for (tree target, tree newid)
+{
+ tree alias = build_decl (DECL_SOURCE_LOCATION (target),
+ TREE_CODE (target), newid, TREE_TYPE (target));
+ DECL_LANG_SPECIFIC (alias) = DECL_LANG_SPECIFIC (target);
+ cxx_dup_lang_specific_decl (alias);
+ DECL_CONTEXT (alias) = DECL_CONTEXT (target);
+ TREE_READONLY (alias) = TREE_READONLY (target);
+ TREE_THIS_VOLATILE (alias) = TREE_THIS_VOLATILE (target);
+ TREE_PUBLIC (alias) = 0;
+ DECL_INTERFACE_KNOWN (alias) = 1;
+ if (DECL_LANG_SPECIFIC (alias))
+ {
+ DECL_NOT_REALLY_EXTERN (alias) = 1;
+ DECL_USE_TEMPLATE (alias) = 0;
+ DECL_TEMPLATE_INFO (alias) = NULL;
+ }
+ DECL_EXTERNAL (alias) = 0;
+ DECL_ARTIFICIAL (alias) = 1;
+ DECL_TEMPLATE_INSTANTIATED (alias) = 0;
+ if (TREE_CODE (alias) == FUNCTION_DECL)
+ {
+ DECL_SAVED_AUTO_RETURN_TYPE (alias) = NULL;
+ DECL_CXX_DESTRUCTOR_P (alias) = 0;
+ DECL_CXX_CONSTRUCTOR_P (alias) = 0;
+ DECL_PENDING_INLINE_P (alias) = 0;
+ DECL_DECLARED_INLINE_P (alias) = 0;
+ DECL_INITIAL (alias) = error_mark_node;
+ DECL_ARGUMENTS (alias) = copy_list (DECL_ARGUMENTS (target));
+ }
+ else
+ TREE_STATIC (alias) = 1;
+ TREE_ADDRESSABLE (alias) = 1;
+ TREE_USED (alias) = 1;
+ SET_DECL_ASSEMBLER_NAME (alias, DECL_NAME (alias));
+ return alias;
+}
+
+static tree
+make_alias_for_thunk (tree function)
+{
+ tree alias;
+ char buf[256];
+
+ targetm.asm_out.generate_internal_label (buf, "LTHUNK", thunk_labelno);
+ thunk_labelno++;
+
+ alias = make_alias_for (function, get_identifier (buf));
+
+ if (!flag_syntax_only)
+ {
+ struct cgraph_node *funcn, *aliasn;
+ funcn = cgraph_node::get (function);
+ gcc_checking_assert (funcn);
+ aliasn = cgraph_node::create_same_body_alias (alias, function);
+ DECL_ASSEMBLER_NAME (function);
+ gcc_assert (aliasn != NULL);
+ }
+
+ return alias;
+}
+
+/* Emit the definition of a C++ multiple inheritance or covariant
+ return vtable thunk. If EMIT_P is nonzero, the thunk is emitted
+ immediately. */
+
+void
+use_thunk (tree thunk_fndecl, bool emit_p)
+{
+ tree a, t, function, alias;
+ tree virtual_offset;
+ HOST_WIDE_INT fixed_offset, virtual_value;
+ bool this_adjusting = DECL_THIS_THUNK_P (thunk_fndecl);
+ struct cgraph_node *funcn, *thunk_node;
+
+ /* We should have called finish_thunk to give it a name. */
+ gcc_assert (DECL_NAME (thunk_fndecl));
+
+ /* We should never be using an alias, always refer to the
+ aliased thunk. */
+ gcc_assert (!THUNK_ALIAS (thunk_fndecl));
+
+ if (TREE_ASM_WRITTEN (thunk_fndecl))
+ return;
+
+ function = THUNK_TARGET (thunk_fndecl);
+ if (DECL_RESULT (thunk_fndecl))
+ /* We already turned this thunk into an ordinary function.
+ There's no need to process this thunk again. */
+ return;
+
+ if (DECL_THUNK_P (function))
+ /* The target is itself a thunk, process it now. */
+ use_thunk (function, emit_p);
+
+ /* Thunks are always addressable; they only appear in vtables. */
+ TREE_ADDRESSABLE (thunk_fndecl) = 1;
+
+ /* Figure out what function is being thunked to. It's referenced in
+ this translation unit. */
+ TREE_ADDRESSABLE (function) = 1;
+ mark_used (function);
+ if (!emit_p)
+ return;
+
+ if (TARGET_USE_LOCAL_THUNK_ALIAS_P (function))
+ alias = make_alias_for_thunk (function);
+ else
+ alias = function;
+
+ fixed_offset = THUNK_FIXED_OFFSET (thunk_fndecl);
+ virtual_offset = THUNK_VIRTUAL_OFFSET (thunk_fndecl);
+
+ if (virtual_offset)
+ {
+ if (!this_adjusting)
+ virtual_offset = BINFO_VPTR_FIELD (virtual_offset);
+ virtual_value = tree_to_shwi (virtual_offset);
+ gcc_assert (virtual_value);
+ }
+ else
+ virtual_value = 0;
+
+ /* And, if we need to emit the thunk, it's used. */
+ mark_used (thunk_fndecl);
+ /* This thunk is actually defined. */
+ DECL_EXTERNAL (thunk_fndecl) = 0;
+ /* The linkage of the function may have changed. FIXME in linkage
+ rewrite. */
+ gcc_assert (DECL_INTERFACE_KNOWN (function));
+ TREE_PUBLIC (thunk_fndecl) = TREE_PUBLIC (function);
+ DECL_VISIBILITY (thunk_fndecl) = DECL_VISIBILITY (function);
+ DECL_VISIBILITY_SPECIFIED (thunk_fndecl)
+ = DECL_VISIBILITY_SPECIFIED (function);
+ DECL_COMDAT (thunk_fndecl) = DECL_COMDAT (function);
+ DECL_WEAK (thunk_fndecl) = DECL_WEAK (function);
+
+ if (flag_syntax_only)
+ {
+ TREE_ASM_WRITTEN (thunk_fndecl) = 1;
+ return;
+ }
+
+ push_to_top_level ();
+
+ if (TARGET_USE_LOCAL_THUNK_ALIAS_P (function)
+ && targetm_common.have_named_sections)
+ {
+ tree fn = function;
+ struct symtab_node *symbol;
+
+ if ((symbol = symtab_node::get (function))
+ && symbol->alias)
+ {
+ if (symbol->analyzed)
+ fn = symtab_node::get (function)->ultimate_alias_target ()->decl;
+ else
+ fn = symtab_node::get (function)->alias_target;
+ }
+ resolve_unique_section (fn, 0, flag_function_sections);
+
+ if (DECL_SECTION_NAME (fn) != NULL && DECL_ONE_ONLY (fn))
+ {
+ resolve_unique_section (thunk_fndecl, 0, flag_function_sections);
+
+ /* Output the thunk into the same section as function. */
+ set_decl_section_name (thunk_fndecl, fn);
+ symtab_node::get (thunk_fndecl)->implicit_section
+ = symtab_node::get (fn)->implicit_section;
+ }
+ }
+
+ /* Set up cloned argument trees for the thunk. */
+ t = NULL_TREE;
+ for (a = DECL_ARGUMENTS (function); a; a = DECL_CHAIN (a))
+ {
+ tree x = copy_node (a);
+ DECL_CHAIN (x) = t;
+ DECL_CONTEXT (x) = thunk_fndecl;
+ SET_DECL_RTL (x, NULL);
+ DECL_HAS_VALUE_EXPR_P (x) = 0;
+ TREE_ADDRESSABLE (x) = 0;
+ t = x;
+ }
+ a = nreverse (t);
+ DECL_ARGUMENTS (thunk_fndecl) = a;
+ TREE_ASM_WRITTEN (thunk_fndecl) = 1;
+ funcn = cgraph_node::get (function);
+ gcc_checking_assert (funcn);
+ thunk_node = funcn->create_thunk (thunk_fndecl, function,
+ this_adjusting, fixed_offset, virtual_value,
+ 0, virtual_offset, alias);
+ if (DECL_ONE_ONLY (function))
+ thunk_node->add_to_same_comdat_group (funcn);
+
+ pop_from_top_level ();
+}
+
+/* Code for synthesizing methods which have default semantics defined. */
+
+/* True iff CTYPE has a trivial SFK. */
+
+static bool
+type_has_trivial_fn (tree ctype, special_function_kind sfk)
+{
+ switch (sfk)
+ {
+ case sfk_constructor:
+ return !TYPE_HAS_COMPLEX_DFLT (ctype);
+ case sfk_copy_constructor:
+ return !TYPE_HAS_COMPLEX_COPY_CTOR (ctype);
+ case sfk_move_constructor:
+ return !TYPE_HAS_COMPLEX_MOVE_CTOR (ctype);
+ case sfk_copy_assignment:
+ return !TYPE_HAS_COMPLEX_COPY_ASSIGN (ctype);
+ case sfk_move_assignment:
+ return !TYPE_HAS_COMPLEX_MOVE_ASSIGN (ctype);
+ case sfk_destructor:
+ case sfk_virtual_destructor:
+ return !TYPE_HAS_NONTRIVIAL_DESTRUCTOR (ctype);
+ case sfk_inheriting_constructor:
+ case sfk_comparison:
+ return false;
+ default:
+ gcc_unreachable ();
+ }
+}
+
+/* Note that CTYPE has a non-trivial SFK even though we previously thought
+ it was trivial. */
+
+static void
+type_set_nontrivial_flag (tree ctype, special_function_kind sfk)
+{
+ switch (sfk)
+ {
+ case sfk_constructor:
+ TYPE_HAS_COMPLEX_DFLT (ctype) = true;
+ return;
+ case sfk_copy_constructor:
+ TYPE_HAS_COMPLEX_COPY_CTOR (ctype) = true;
+ return;
+ case sfk_move_constructor:
+ TYPE_HAS_COMPLEX_MOVE_CTOR (ctype) = true;
+ return;
+ case sfk_copy_assignment:
+ TYPE_HAS_COMPLEX_COPY_ASSIGN (ctype) = true;
+ return;
+ case sfk_move_assignment:
+ TYPE_HAS_COMPLEX_MOVE_ASSIGN (ctype) = true;
+ return;
+ case sfk_destructor:
+ TYPE_HAS_NONTRIVIAL_DESTRUCTOR (ctype) = true;
+ return;
+ case sfk_inheriting_constructor:
+ default:
+ gcc_unreachable ();
+ }
+}
+
+/* True iff FN is a trivial defaulted member function ([cd]tor, op=). */
+
+bool
+trivial_fn_p (tree fn)
+{
+ if (TREE_CODE (fn) == TEMPLATE_DECL)
+ return false;
+ if (!DECL_DEFAULTED_FN (fn))
+ return false;
+
+ /* If fn is a clone, get the primary variant. */
+ if (tree prim = DECL_CLONED_FUNCTION (fn))
+ fn = prim;
+ return type_has_trivial_fn (DECL_CONTEXT (fn), special_function_p (fn));
+}
+
+/* PARM is a PARM_DECL for a function which we want to forward to another
+ function without changing its value category, a la std::forward. */
+
+tree
+forward_parm (tree parm)
+{
+ tree exp = convert_from_reference (parm);
+ tree type = TREE_TYPE (parm);
+ if (DECL_PACK_P (parm))
+ type = PACK_EXPANSION_PATTERN (type);
+ if (!TYPE_REF_P (type))
+ type = cp_build_reference_type (type, /*rval=*/true);
+ warning_sentinel w (warn_useless_cast);
+ exp = build_static_cast (input_location, type, exp,
+ tf_warning_or_error);
+ if (DECL_PACK_P (parm))
+ exp = make_pack_expansion (exp);
+ return exp;
+}
+
+/* Strip all inheriting constructors, if any, to return the original
+ constructor from a (possibly indirect) base class. */
+
+tree
+strip_inheriting_ctors (tree dfn)
+{
+ if (!flag_new_inheriting_ctors)
+ return dfn;
+ tree fn = dfn;
+ while (tree inh = DECL_INHERITED_CTOR (fn))
+ fn = OVL_FIRST (inh);
+
+ if (TREE_CODE (fn) == TEMPLATE_DECL
+ && TREE_CODE (dfn) == FUNCTION_DECL)
+ fn = DECL_TEMPLATE_RESULT (fn);
+ return fn;
+}
+
+/* Find the binfo for the base subobject of BINFO being initialized by
+ inherited constructor FNDECL (a member of a direct base of BINFO). */
+
+static tree inherited_ctor_binfo (tree, tree);
+static tree
+inherited_ctor_binfo_1 (tree binfo, tree fndecl)
+{
+ tree base = DECL_CONTEXT (fndecl);
+ tree base_binfo;
+ for (int i = 0; BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
+ if (BINFO_TYPE (base_binfo) == base)
+ return inherited_ctor_binfo (base_binfo, fndecl);
+
+ gcc_unreachable();
+}
+
+/* Find the binfo for the base subobject of BINFO being initialized by
+ inheriting constructor FNDECL (a member of BINFO), or BINFO if FNDECL is not
+ an inheriting constructor. */
+
+static tree
+inherited_ctor_binfo (tree binfo, tree fndecl)
+{
+ tree inh = DECL_INHERITED_CTOR (fndecl);
+ if (!inh)
+ return binfo;
+
+ tree results = NULL_TREE;
+ for (ovl_iterator iter (inh); iter; ++iter)
+ {
+ tree one = inherited_ctor_binfo_1 (binfo, *iter);
+ if (!results)
+ results = one;
+ else if (one != results)
+ results = tree_cons (NULL_TREE, one, results);
+ }
+ return results;
+}
+
+/* Find the binfo for the base subobject being initialized by inheriting
+ constructor FNDECL, or NULL_TREE if FNDECL is not an inheriting
+ constructor. */
+
+tree
+inherited_ctor_binfo (tree fndecl)
+{
+ if (!DECL_INHERITED_CTOR (fndecl))
+ return NULL_TREE;
+ tree binfo = TYPE_BINFO (DECL_CONTEXT (fndecl));
+ return inherited_ctor_binfo (binfo, fndecl);
+}
+
+
+/* True if we should omit all user-declared parameters from a base
+ construtor built from complete constructor FN.
+ That's when the ctor is inherited from a virtual base. */
+
+bool
+base_ctor_omit_inherited_parms (tree comp_ctor)
+{
+ gcc_checking_assert (DECL_MAYBE_IN_CHARGE_CONSTRUCTOR_P (comp_ctor));
+
+ if (!flag_new_inheriting_ctors)
+ /* We only optimize away the parameters in the new model. */
+ return false;
+
+ if (!CLASSTYPE_VBASECLASSES (DECL_CONTEXT (comp_ctor)))
+ return false;
+
+ if (FUNCTION_FIRST_USER_PARMTYPE (comp_ctor) == void_list_node)
+ /* No user-declared parameters to omit. */
+ return false;
+
+ for (tree binfo = inherited_ctor_binfo (comp_ctor);
+ binfo;
+ binfo = BINFO_INHERITANCE_CHAIN (binfo))
+ if (BINFO_VIRTUAL_P (binfo))
+ return true;
+
+ return false;
+}
+
+
+/* True if we should omit all user-declared parameters from constructor FN,
+ because it is a base clone of a ctor inherited from a virtual base. */
+
+bool
+ctor_omit_inherited_parms (tree fn)
+{
+ gcc_checking_assert (TREE_CODE (fn) == FUNCTION_DECL);
+
+ if (!DECL_BASE_CONSTRUCTOR_P (fn))
+ return false;
+
+ return base_ctor_omit_inherited_parms (DECL_CLONED_FUNCTION (fn));
+}
+
+/* True iff constructor(s) INH inherited into BINFO initializes INIT_BINFO.
+ This can be true for multiple virtual bases as well as one direct
+ non-virtual base. */
+
+static bool
+binfo_inherited_from (tree binfo, tree init_binfo, tree inh)
+{
+ /* inh is an OVERLOAD if we inherited the same constructor along
+ multiple paths, check all of them. */
+ for (ovl_iterator iter (inh); iter; ++iter)
+ {
+ tree fn = *iter;
+ tree base = DECL_CONTEXT (fn);
+ tree base_binfo = NULL_TREE;
+ for (int i = 0; BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
+ if (BINFO_TYPE (base_binfo) == base)
+ break;
+ if (base_binfo == init_binfo
+ || (flag_new_inheriting_ctors
+ && binfo_inherited_from (base_binfo, init_binfo,
+ DECL_INHERITED_CTOR (fn))))
+ return true;
+ }
+ return false;
+}
+
+/* Subroutine of do_build_copy_constructor: Add a mem-initializer for BINFO
+ given the parameter or parameters PARM, possibly inherited constructor
+ base INH, or move flag MOVE_P. */
+
+static tree
+add_one_base_init (tree binfo, tree parm, bool move_p, tree inh,
+ tree member_init_list)
+{
+ tree init;
+ if (inh)
+ {
+ /* An inheriting constructor only has a mem-initializer for
+ the base it inherits from. */
+ if (!binfo_inherited_from (TYPE_BINFO (current_class_type), binfo, inh))
+ return member_init_list;
+
+ tree *p = &init;
+ init = NULL_TREE;
+ for (; parm; parm = DECL_CHAIN (parm))
+ {
+ tree exp = forward_parm (parm);
+ *p = build_tree_list (NULL_TREE, exp);
+ p = &TREE_CHAIN (*p);
+ }
+ }
+ else
+ {
+ init = build_base_path (PLUS_EXPR, parm, binfo, 1,
+ tf_warning_or_error);
+ if (move_p)
+ init = move (init);
+ init = build_tree_list (NULL_TREE, init);
+ }
+ return tree_cons (binfo, init, member_init_list);
+}
+
+/* Generate code for default X(X&) or X(X&&) constructor or an inheriting
+ constructor. */
+
+static void
+do_build_copy_constructor (tree fndecl)
+{
+ tree parm = FUNCTION_FIRST_USER_PARM (fndecl);
+ bool move_p = DECL_MOVE_CONSTRUCTOR_P (fndecl);
+ bool trivial = trivial_fn_p (fndecl);
+ tree inh = DECL_INHERITED_CTOR (fndecl);
+
+ if (!inh)
+ parm = convert_from_reference (parm);
+
+ if (trivial)
+ {
+ if (is_empty_class (current_class_type))
+ /* Don't copy the padding byte; it might not have been allocated
+ if *this is a base subobject. */;
+ else if (tree_int_cst_equal (TYPE_SIZE (current_class_type),
+ CLASSTYPE_SIZE (current_class_type)))
+ {
+ tree t = build2 (INIT_EXPR, void_type_node, current_class_ref, parm);
+ finish_expr_stmt (t);
+ }
+ else
+ {
+ /* We must only copy the non-tail padding parts. */
+ tree base_size = CLASSTYPE_SIZE_UNIT (current_class_type);
+ base_size = size_binop (MINUS_EXPR, base_size, size_int (1));
+ tree array_type = build_array_type (unsigned_char_type_node,
+ build_index_type (base_size));
+ tree alias_set = build_int_cst (TREE_TYPE (current_class_ptr), 0);
+ tree lhs = build2 (MEM_REF, array_type,
+ current_class_ptr, alias_set);
+ tree rhs = build2 (MEM_REF, array_type,
+ TREE_OPERAND (parm, 0), alias_set);
+ tree t = build2 (INIT_EXPR, void_type_node, lhs, rhs);
+ finish_expr_stmt (t);
+ }
+ }
+ else
+ {
+ tree member_init_list = NULL_TREE;
+ int i;
+ tree binfo, base_binfo;
+ vec<tree, va_gc> *vbases;
+
+ /* Initialize all the base-classes with the parameter converted
+ to their type so that we get their copy constructor and not
+ another constructor that takes current_class_type. We must
+ deal with the binfo's directly as a direct base might be
+ inaccessible due to ambiguity. */
+ for (vbases = CLASSTYPE_VBASECLASSES (current_class_type), i = 0;
+ vec_safe_iterate (vbases, i, &binfo); i++)
+ {
+ member_init_list = add_one_base_init (binfo, parm, move_p, inh,
+ member_init_list);
+ }
+
+ for (binfo = TYPE_BINFO (current_class_type), i = 0;
+ BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
+ {
+ if (BINFO_VIRTUAL_P (base_binfo))
+ continue;
+ member_init_list = add_one_base_init (base_binfo, parm, move_p,
+ inh, member_init_list);
+ }
+
+ if (!inh)
+ {
+ int cvquals = cp_type_quals (TREE_TYPE (parm));
+
+ for (tree fields = TYPE_FIELDS (current_class_type);
+ fields; fields = DECL_CHAIN (fields))
+ {
+ tree field = fields;
+ tree expr_type;
+
+ if (TREE_CODE (field) != FIELD_DECL)
+ continue;
+
+ expr_type = TREE_TYPE (field);
+ if (DECL_NAME (field))
+ {
+ if (VFIELD_NAME_P (DECL_NAME (field)))
+ continue;
+ }
+ else if (ANON_AGGR_TYPE_P (expr_type) && TYPE_FIELDS (expr_type))
+ /* Just use the field; anonymous types can't have
+ nontrivial copy ctors or assignment ops or this
+ function would be deleted. */;
+ else
+ continue;
+
+ /* Compute the type of "init->field". If the copy-constructor
+ parameter is, for example, "const S&", and the type of
+ the field is "T", then the type will usually be "const
+ T". (There are no cv-qualified variants of reference
+ types.) */
+ if (!TYPE_REF_P (expr_type))
+ {
+ int quals = cvquals;
+
+ if (DECL_MUTABLE_P (field))
+ quals &= ~TYPE_QUAL_CONST;
+ quals |= cp_type_quals (expr_type);
+ expr_type = cp_build_qualified_type (expr_type, quals);
+ }
+
+ tree init = build3 (COMPONENT_REF, expr_type, parm, field, NULL_TREE);
+ if (move_p && !TYPE_REF_P (expr_type)
+ /* 'move' breaks bit-fields, and has no effect for scalars. */
+ && !scalarish_type_p (expr_type))
+ init = move (init);
+ init = build_tree_list (NULL_TREE, init);
+
+ member_init_list = tree_cons (field, init, member_init_list);
+ }
+ }
+
+ finish_mem_initializers (member_init_list);
+ }
+}
+
+static void
+do_build_copy_assign (tree fndecl)
+{
+ tree parm = DECL_CHAIN (DECL_ARGUMENTS (fndecl));
+ tree compound_stmt;
+ bool move_p = move_fn_p (fndecl);
+ bool trivial = trivial_fn_p (fndecl);
+ int flags = LOOKUP_NORMAL | LOOKUP_NONVIRTUAL | LOOKUP_DEFAULTED;
+
+ compound_stmt = begin_compound_stmt (0);
+ parm = convert_from_reference (parm);
+
+ if (trivial
+ && is_empty_class (current_class_type))
+ /* Don't copy the padding byte; it might not have been allocated
+ if *this is a base subobject. */;
+ else if (trivial)
+ {
+ tree t = build2 (MODIFY_EXPR, void_type_node, current_class_ref, parm);
+ finish_expr_stmt (t);
+ }
+ else
+ {
+ tree fields;
+ int cvquals = cp_type_quals (TREE_TYPE (parm));
+ int i;
+ tree binfo, base_binfo;
+
+ /* Assign to each of the direct base classes. */
+ for (binfo = TYPE_BINFO (current_class_type), i = 0;
+ BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
+ {
+ tree converted_parm;
+
+ /* We must convert PARM directly to the base class
+ explicitly since the base class may be ambiguous. */
+ converted_parm = build_base_path (PLUS_EXPR, parm, base_binfo, 1,
+ tf_warning_or_error);
+ if (move_p)
+ converted_parm = move (converted_parm);
+ /* Call the base class assignment operator. */
+ releasing_vec parmvec (make_tree_vector_single (converted_parm));
+ finish_expr_stmt
+ (build_special_member_call (current_class_ref,
+ assign_op_identifier,
+ &parmvec,
+ base_binfo,
+ flags,
+ tf_warning_or_error));
+ }
+
+ /* Assign to each of the non-static data members. */
+ for (fields = TYPE_FIELDS (current_class_type);
+ fields;
+ fields = DECL_CHAIN (fields))
+ {
+ tree comp = current_class_ref;
+ tree init = parm;
+ tree field = fields;
+ tree expr_type;
+ int quals;
+
+ if (TREE_CODE (field) != FIELD_DECL || DECL_ARTIFICIAL (field))
+ continue;
+
+ expr_type = TREE_TYPE (field);
+
+ if (CP_TYPE_CONST_P (expr_type))
+ {
+ error ("non-static const member %q#D, cannot use default "
+ "assignment operator", field);
+ continue;
+ }
+ else if (TYPE_REF_P (expr_type))
+ {
+ error ("non-static reference member %q#D, cannot use "
+ "default assignment operator", field);
+ continue;
+ }
+
+ if (DECL_NAME (field))
+ {
+ if (VFIELD_NAME_P (DECL_NAME (field)))
+ continue;
+ }
+ else if (ANON_AGGR_TYPE_P (expr_type)
+ && TYPE_FIELDS (expr_type) != NULL_TREE)
+ /* Just use the field; anonymous types can't have
+ nontrivial copy ctors or assignment ops or this
+ function would be deleted. */;
+ else
+ continue;
+
+ comp = build3 (COMPONENT_REF, expr_type, comp, field, NULL_TREE);
+
+ /* Compute the type of init->field */
+ quals = cvquals;
+ if (DECL_MUTABLE_P (field))
+ quals &= ~TYPE_QUAL_CONST;
+ expr_type = cp_build_qualified_type (expr_type, quals);
+
+ init = build3 (COMPONENT_REF, expr_type, init, field, NULL_TREE);
+ if (move_p && !TYPE_REF_P (expr_type)
+ /* 'move' breaks bit-fields, and has no effect for scalars. */
+ && !scalarish_type_p (expr_type))
+ init = move (init);
+
+ if (DECL_NAME (field))
+ init = cp_build_modify_expr (input_location, comp, NOP_EXPR, init,
+ tf_warning_or_error);
+ else
+ init = build2 (MODIFY_EXPR, TREE_TYPE (comp), comp, init);
+ finish_expr_stmt (init);
+ }
+ }
+ finish_return_stmt (current_class_ref);
+ finish_compound_stmt (compound_stmt);
+}
+
+/* C++20 <compare> comparison category types. */
+
+enum comp_cat_tag
+{
+ cc_partial_ordering,
+ cc_weak_ordering,
+ cc_strong_ordering,
+ cc_last
+};
+
+/* Names of the comparison categories and their value members, to be indexed by
+ comp_cat_tag enumerators. genericize_spaceship below relies on the ordering
+ of the members. */
+
+struct comp_cat_info_t
+{
+ const char *name;
+ const char *members[4];
+};
+static const comp_cat_info_t comp_cat_info[cc_last]
+= {
+ { "partial_ordering", { "equivalent", "greater", "less", "unordered" } },
+ { "weak_ordering", { "equivalent", "greater", "less" } },
+ { "strong_ordering", { "equal", "greater", "less" } }
+};
+
+/* A cache of the category types to speed repeated lookups. */
+
+static GTY((deletable)) tree comp_cat_cache[cc_last];
+
+/* Look up one of the result variables in the comparison category type. */
+
+static tree
+lookup_comparison_result (tree type, const char *name_str,
+ tsubst_flags_t complain = tf_warning_or_error)
+{
+ tree name = get_identifier (name_str);
+ tree decl = lookup_qualified_name (type, name);
+ if (TREE_CODE (decl) != VAR_DECL)
+ {
+ if (complain & tf_error)
+ {
+ auto_diagnostic_group d;
+ if (decl == error_mark_node || TREE_CODE (decl) == TREE_LIST)
+ qualified_name_lookup_error (type, name, decl, input_location);
+ else
+ error ("%qD is not a static data member", decl);
+ inform (input_location, "determining value of %qs", "operator<=>");
+ }
+ return error_mark_node;
+ }
+ return decl;
+}
+
+/* Look up a <compare> comparison category type in std. */
+
+static tree
+lookup_comparison_category (comp_cat_tag tag,
+ tsubst_flags_t complain = tf_warning_or_error)
+{
+ if (tree cached = comp_cat_cache[tag])
+ return cached;
+
+ tree name = get_identifier (comp_cat_info[tag].name);
+ tree decl = lookup_qualified_name (std_node, name);
+ if (TREE_CODE (decl) != TYPE_DECL)
+ {
+ if (complain & tf_error)
+ {
+ auto_diagnostic_group d;
+ if (decl == error_mark_node || TREE_CODE (decl) == TREE_LIST)
+ qualified_name_lookup_error (std_node, name, decl, input_location);
+ else
+ error ("%qD is not a type", decl);
+ inform (input_location, "forming type of %qs", "operator<=>");
+ }
+ return error_mark_node;
+ }
+ /* Also make sure we can look up the value members now, since we won't
+ really use them until genericize time. */
+ tree type = TREE_TYPE (decl);
+ for (int i = 0; i < 4; ++i)
+ {
+ const char *p = comp_cat_info[tag].members[i];
+ if (!p) break;
+ if (lookup_comparison_result (type, p, complain)
+ == error_mark_node)
+ return error_mark_node;
+ }
+ return comp_cat_cache[tag] = type;
+}
+
+/* Wrapper that takes the tag rather than the type. */
+
+static tree
+lookup_comparison_result (comp_cat_tag tag, const char *name_str,
+ tsubst_flags_t complain = tf_warning_or_error)
+{
+ tree type = lookup_comparison_category (tag, complain);
+ return lookup_comparison_result (type, name_str, complain);
+}
+
+/* Wrapper that takes the index into the members array instead of the name. */
+
+static tree
+lookup_comparison_result (comp_cat_tag tag, tree type, int idx)
+{
+ const char *name_str = comp_cat_info[tag].members[idx];
+ if (!name_str)
+ return NULL_TREE;
+ return lookup_comparison_result (type, name_str);
+}
+
+/* Does TYPE correspond to TAG? */
+
+static bool
+is_cat (tree type, comp_cat_tag tag)
+{
+ tree name = TYPE_LINKAGE_IDENTIFIER (type);
+ return id_equal (name, comp_cat_info[tag].name);
+}
+
+/* Return the comp_cat_tag for TYPE. */
+
+static comp_cat_tag
+cat_tag_for (tree type)
+{
+ if (!CLASS_TYPE_P (type) || !decl_in_std_namespace_p (TYPE_MAIN_DECL (type)))
+ return cc_last;
+ for (int i = 0; i < cc_last; ++i)
+ {
+ comp_cat_tag tag = (comp_cat_tag)i;
+ if (is_cat (type, tag))
+ return tag;
+ }
+ return cc_last;
+}
+
+/* Return the comparison category tag of a <=> expression with non-class type
+ OPTYPE. */
+
+static comp_cat_tag
+spaceship_comp_cat (tree optype)
+{
+ if (INTEGRAL_OR_ENUMERATION_TYPE_P (optype) || TYPE_PTROBV_P (optype))
+ return cc_strong_ordering;
+ else if (TREE_CODE (optype) == REAL_TYPE)
+ return cc_partial_ordering;
+
+ /* ??? should vector <=> produce a vector of one of the above? */
+ gcc_unreachable ();
+}
+
+/* Return the comparison category type of a <=> expression with non-class type
+ OPTYPE. */
+
+tree
+spaceship_type (tree optype, tsubst_flags_t complain)
+{
+ comp_cat_tag tag = spaceship_comp_cat (optype);
+ return lookup_comparison_category (tag, complain);
+}
+
+/* Turn <=> with type TYPE and operands OP0 and OP1 into GENERIC.
+ This is also used by build_comparison_op for fallback to op< and op==
+ in a defaulted op<=>. */
+
+tree
+genericize_spaceship (location_t loc, tree type, tree op0, tree op1)
+{
+ /* ??? maybe optimize based on knowledge of representation? */
+ comp_cat_tag tag = cat_tag_for (type);
+
+ if (tag == cc_last && is_auto (type))
+ {
+ /* build_comparison_op is checking to see if we want to suggest changing
+ the op<=> return type from auto to a specific comparison category; any
+ category will do for now. */
+ tag = cc_strong_ordering;
+ type = lookup_comparison_category (tag, tf_none);
+ if (type == error_mark_node)
+ return error_mark_node;
+ }
+
+ gcc_checking_assert (tag < cc_last);
+
+ tree r;
+ bool scalar = SCALAR_TYPE_P (TREE_TYPE (op0));
+ if (scalar)
+ {
+ op0 = save_expr (op0);
+ op1 = save_expr (op1);
+ }
+
+ tree gt = lookup_comparison_result (tag, type, 1);
+
+ int flags = LOOKUP_NORMAL;
+ tsubst_flags_t complain = tf_none;
+ tree comp;
+
+ if (tag == cc_partial_ordering)
+ {
+ /* op0 == op1 ? equivalent : op0 < op1 ? less :
+ op1 < op0 ? greater : unordered */
+ tree uo = lookup_comparison_result (tag, type, 3);
+ if (scalar)
+ {
+ /* For scalars use the low level operations; using build_new_op causes
+ trouble with constexpr eval in the middle of genericize (100367). */
+ comp = fold_build2 (LT_EXPR, boolean_type_node, op1, op0);
+ r = fold_build3 (COND_EXPR, type, comp, gt, uo);
+ }
+ else
+ {
+ comp = build_new_op (loc, LT_EXPR, flags, op1, op0, complain);
+ r = build_conditional_expr (loc, comp, gt, uo, complain);
+ }
+ }
+ else
+ /* op0 == op1 ? equal : op0 < op1 ? less : greater */
+ r = gt;
+
+ tree lt = lookup_comparison_result (tag, type, 2);
+ if (scalar)
+ {
+ comp = fold_build2 (LT_EXPR, boolean_type_node, op0, op1);
+ r = fold_build3 (COND_EXPR, type, comp, lt, r);
+ }
+ else
+ {
+ comp = build_new_op (loc, LT_EXPR, flags, op0, op1, complain);
+ r = build_conditional_expr (loc, comp, lt, r, complain);
+ }
+
+ tree eq = lookup_comparison_result (tag, type, 0);
+ if (scalar)
+ {
+ comp = fold_build2 (EQ_EXPR, boolean_type_node, op0, op1);
+ r = fold_build3 (COND_EXPR, type, comp, eq, r);
+ }
+ else
+ {
+ comp = build_new_op (loc, EQ_EXPR, flags, op0, op1, complain);
+ r = build_conditional_expr (loc, comp, eq, r, complain);
+ }
+
+ return r;
+}
+
+/* Check that the signature of a defaulted comparison operator is
+ well-formed. */
+
+static bool
+early_check_defaulted_comparison (tree fn)
+{
+ location_t loc = DECL_SOURCE_LOCATION (fn);
+ tree ctx;
+ if (DECL_CLASS_SCOPE_P (fn))
+ ctx = DECL_CONTEXT (fn);
+ else
+ ctx = DECL_FRIEND_CONTEXT (fn);
+ bool ok = true;
+
+ if (cxx_dialect < cxx20)
+ {
+ error_at (loc, "defaulted %qD only available with %<-std=c++20%> or "
+ "%<-std=gnu++20%>", fn);
+ return false;
+ }
+
+ if (!DECL_OVERLOADED_OPERATOR_IS (fn, SPACESHIP_EXPR)
+ && !same_type_p (TREE_TYPE (TREE_TYPE (fn)), boolean_type_node))
+ {
+ diagnostic_t kind = DK_UNSPECIFIED;
+ int opt = 0;
+ if (is_auto (TREE_TYPE (fn)))
+ kind = DK_PEDWARN;
+ else
+ kind = DK_ERROR;
+ emit_diagnostic (kind, loc, opt,
+ "defaulted %qD must return %<bool%>", fn);
+ if (kind == DK_ERROR)
+ ok = false;
+ }
+
+ bool mem = DECL_NONSTATIC_MEMBER_FUNCTION_P (fn);
+ if (mem && type_memfn_quals (TREE_TYPE (fn)) != TYPE_QUAL_CONST)
+ {
+ error_at (loc, "defaulted %qD must be %<const%>", fn);
+ ok = false;
+ }
+ if (mem && type_memfn_rqual (TREE_TYPE (fn)) == REF_QUAL_RVALUE)
+ {
+ error_at (loc, "defaulted %qD must not have %<&&%> ref-qualifier", fn);
+ ok = false;
+ }
+ tree parmnode = FUNCTION_FIRST_USER_PARMTYPE (fn);
+ bool saw_byval = false;
+ bool saw_byref = mem;
+ bool saw_bad = false;
+ for (; parmnode != void_list_node; parmnode = TREE_CHAIN (parmnode))
+ {
+ tree parmtype = TREE_VALUE (parmnode);
+ if (CLASS_TYPE_P (parmtype))
+ saw_byval = true;
+ else if (TREE_CODE (parmtype) == REFERENCE_TYPE
+ && !TYPE_REF_IS_RVALUE (parmtype)
+ && TYPE_QUALS (TREE_TYPE (parmtype)) == TYPE_QUAL_CONST)
+ {
+ saw_byref = true;
+ parmtype = TREE_TYPE (parmtype);
+ }
+ else
+ saw_bad = true;
+
+ if (!saw_bad && !ctx)
+ {
+ /* Defaulted outside the class body. */
+ ctx = TYPE_MAIN_VARIANT (parmtype);
+ if (!is_friend (ctx, fn))
+ error_at (loc, "defaulted %qD is not a friend of %qT", fn, ctx);
+ }
+ else if (!same_type_ignoring_top_level_qualifiers_p (parmtype, ctx))
+ saw_bad = true;
+ }
+
+ if (saw_bad || (saw_byval && saw_byref))
+ {
+ if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn))
+ error_at (loc, "defaulted member %qD must have parameter type "
+ "%<const %T&%>", fn, ctx);
+ else if (saw_bad)
+ error_at (loc, "defaulted %qD must have parameters of either type "
+ "%<const %T&%> or %qT", fn, ctx, ctx);
+ else
+ error_at (loc, "defaulted %qD must have parameters of either type "
+ "%<const %T&%> or %qT, not both", fn, ctx, ctx);
+ ok = false;
+ }
+
+ /* We still need to deduce deleted/constexpr/noexcept and maybe return. */
+ DECL_MAYBE_DELETED (fn) = ok;
+
+ return ok;
+}
+
+/* Subroutine of build_comparison_op. Given the vec of memberwise
+ comparisons COMPS, calculate the overall comparison category for
+ operator<=>. */
+
+static tree
+common_comparison_type (vec<tree> &comps)
+{
+ tree seen[cc_last] = {};
+
+ for (unsigned i = 0; i < comps.length(); ++i)
+ {
+ tree comp = comps[i];
+ if (TREE_CODE (comp) == TREE_LIST)
+ comp = TREE_VALUE (comp);
+ tree ctype = TREE_TYPE (comp);
+ comp_cat_tag tag = cat_tag_for (ctype);
+ /* build_comparison_op already checked this. */
+ gcc_checking_assert (tag < cc_last);
+ seen[tag] = ctype;
+ }
+
+ /* Otherwise, if at least one T i is std::partial_ordering, U is
+ std::partial_ordering. */
+ if (tree t = seen[cc_partial_ordering]) return t;
+
+ /* Otherwise, if at least one T i is std::weak_ordering, U is
+ std::weak_ordering. */
+ if (tree t = seen[cc_weak_ordering]) return t;
+
+ /* Otherwise, U is std::strong_ordering. */
+ if (tree t = seen[cc_strong_ordering]) return t;
+ return lookup_comparison_category (cc_strong_ordering);
+}
+
+/* Data structure for build_comparison_op. */
+
+struct comp_info
+{
+ tree fndecl;
+ location_t loc;
+ tsubst_flags_t complain;
+ tree_code code;
+ comp_cat_tag retcat;
+ bool first_time;
+ bool constexp;
+ bool was_constexp;
+ bool noex;
+
+ comp_info (tree fndecl, tsubst_flags_t complain)
+ : fndecl (fndecl), complain (complain)
+ {
+ loc = DECL_SOURCE_LOCATION (fndecl);
+
+ first_time = DECL_MAYBE_DELETED (fndecl);
+ DECL_MAYBE_DELETED (fndecl) = false;
+
+ /* Do we want to try to set constexpr? */
+ was_constexp = DECL_DECLARED_CONSTEXPR_P (fndecl);
+ constexp = first_time;
+ if (constexp)
+ /* Set this for var_in_constexpr_fn. */
+ DECL_DECLARED_CONSTEXPR_P (fndecl) = true;
+
+ /* Do we want to try to set noexcept? */
+ noex = first_time;
+ if (noex)
+ {
+ tree raises = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fndecl));
+ if (raises && !UNEVALUATED_NOEXCEPT_SPEC_P (raises))
+ /* There was an explicit exception-specification. */
+ noex = false;
+ }
+ }
+
+ /* EXPR is an expression built as part of the function body.
+ Adjust the properties appropriately. */
+ void check (tree expr)
+ {
+ if (expr == error_mark_node)
+ DECL_DELETED_FN (fndecl) = true;
+ if ((constexp || was_constexp)
+ && !potential_rvalue_constant_expression (expr))
+ {
+ if (was_constexp)
+ require_potential_rvalue_constant_expression (expr);
+ else
+ constexp = false;
+ }
+ if (noex && !expr_noexcept_p (expr, tf_none))
+ noex = false;
+ }
+
+ ~comp_info ()
+ {
+ if (first_time)
+ {
+ DECL_DECLARED_CONSTEXPR_P (fndecl) = constexp || was_constexp;
+ tree raises = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fndecl));
+ if (!raises || UNEVALUATED_NOEXCEPT_SPEC_P (raises))
+ {
+ raises = noex ? noexcept_true_spec : noexcept_false_spec;
+ TREE_TYPE (fndecl) = build_exception_variant (TREE_TYPE (fndecl),
+ raises);
+ }
+ }
+ }
+};
+
+/* Subroutine of build_comparison_op, to compare a single subobject. */
+
+static tree
+do_one_comp (location_t loc, const comp_info &info, tree sub, tree lhs, tree rhs)
+{
+ const tree_code code = info.code;
+ const tree fndecl = info.fndecl;
+ const comp_cat_tag retcat = info.retcat;
+ const tsubst_flags_t complain = info.complain;
+
+ tree overload = NULL_TREE;
+ int flags = LOOKUP_NORMAL | LOOKUP_NONVIRTUAL | LOOKUP_DEFAULTED;
+ /* If we have an explicit comparison category return type we can fall back
+ to </=, so don't give an error yet if <=> lookup fails. */
+ bool tentative = retcat != cc_last;
+ tree comp = build_new_op (loc, code, flags, lhs, rhs,
+ NULL_TREE, NULL_TREE, &overload,
+ tentative ? tf_none : complain);
+
+ if (code != SPACESHIP_EXPR)
+ return comp;
+
+ tree rettype = TREE_TYPE (TREE_TYPE (fndecl));
+
+ if (comp == error_mark_node)
+ {
+ if (overload == NULL_TREE && (tentative || complain))
+ {
+ /* No viable <=>, try using op< and op==. */
+ tree lteq = genericize_spaceship (loc, rettype, lhs, rhs);
+ if (lteq != error_mark_node)
+ {
+ /* We found usable < and ==. */
+ if (retcat != cc_last)
+ /* Return type is a comparison category, use them. */
+ comp = lteq;
+ else if (complain & tf_error)
+ /* Return type is auto, suggest changing it. */
+ inform (info.loc, "changing the return type from %qs "
+ "to a comparison category type will allow the "
+ "comparison to use %qs and %qs", "auto",
+ "operator<", "operator==");
+ }
+ else if (tentative && complain)
+ /* No usable < and ==, give an error for op<=>. */
+ build_new_op (loc, code, flags, lhs, rhs, complain);
+ }
+ if (comp == error_mark_node)
+ return error_mark_node;
+ }
+
+ if (FNDECL_USED_AUTO (fndecl)
+ && cat_tag_for (TREE_TYPE (comp)) == cc_last)
+ {
+ /* The operator function is defined as deleted if ... Ri is not a
+ comparison category type. */
+ if (complain & tf_error)
+ inform (loc,
+ "three-way comparison of %qD has type %qT, not a "
+ "comparison category type", sub, TREE_TYPE (comp));
+ return error_mark_node;
+ }
+ else if (!FNDECL_USED_AUTO (fndecl)
+ && !can_convert (rettype, TREE_TYPE (comp), complain))
+ {
+ if (complain & tf_error)
+ error_at (loc,
+ "three-way comparison of %qD has type %qT, which "
+ "does not convert to %qT",
+ sub, TREE_TYPE (comp), rettype);
+ return error_mark_node;
+ }
+
+ return comp;
+}
+
+/* Build up the definition of a defaulted comparison operator. Unlike other
+ defaulted functions that use synthesized_method_walk to determine whether
+ the function is e.g. deleted, for comparisons we use the same code. We try
+ to use synthesize_method at the earliest opportunity and bail out if the
+ function ends up being deleted. */
+
+void
+build_comparison_op (tree fndecl, bool defining, tsubst_flags_t complain)
+{
+ comp_info info (fndecl, complain);
+
+ if (!defining && !(complain & tf_error) && !DECL_MAYBE_DELETED (fndecl))
+ return;
+
+ int flags = LOOKUP_NORMAL;
+ const ovl_op_info_t *op = IDENTIFIER_OVL_OP_INFO (DECL_NAME (fndecl));
+ tree_code code = info.code = op->tree_code;
+
+ tree lhs = DECL_ARGUMENTS (fndecl);
+ tree rhs = DECL_CHAIN (lhs);
+ if (is_this_parameter (lhs))
+ lhs = cp_build_fold_indirect_ref (lhs);
+ else
+ lhs = convert_from_reference (lhs);
+ rhs = convert_from_reference (rhs);
+ tree ctype = TYPE_MAIN_VARIANT (TREE_TYPE (lhs));
+ gcc_assert (!defining || COMPLETE_TYPE_P (ctype));
+
+ iloc_sentinel ils (info.loc);
+
+ /* A defaulted comparison operator function for class C is defined as
+ deleted if ... C has variant members. */
+ if (TREE_CODE (ctype) == UNION_TYPE
+ && next_initializable_field (TYPE_FIELDS (ctype)))
+ {
+ if (complain & tf_error)
+ inform (info.loc, "cannot default compare union %qT", ctype);
+ DECL_DELETED_FN (fndecl) = true;
+ return;
+ }
+
+ tree compound_stmt = NULL_TREE;
+ if (defining)
+ compound_stmt = begin_compound_stmt (0);
+ else
+ ++cp_unevaluated_operand;
+
+ tree rettype = TREE_TYPE (TREE_TYPE (fndecl));
+ if (code != SPACESHIP_EXPR && is_auto (rettype))
+ {
+ rettype = boolean_type_node;
+ apply_deduced_return_type (fndecl, rettype);
+ }
+
+ if (code == EQ_EXPR || code == SPACESHIP_EXPR)
+ {
+ comp_cat_tag &retcat = (info.retcat = cc_last);
+ if (code == SPACESHIP_EXPR && !FNDECL_USED_AUTO (fndecl))
+ retcat = cat_tag_for (rettype);
+
+ bool bad = false;
+ auto_vec<tree> comps;
+
+ /* Compare the base subobjects. We handle them this way, rather than in
+ the field loop below, because maybe_instantiate_noexcept might bring
+ us here before we've built the base fields. */
+ for (tree base_binfo : BINFO_BASE_BINFOS (TYPE_BINFO (ctype)))
+ {
+ tree lhs_base
+ = build_base_path (PLUS_EXPR, lhs, base_binfo, 0, complain);
+ tree rhs_base
+ = build_base_path (PLUS_EXPR, rhs, base_binfo, 0, complain);
+
+ location_t loc = DECL_SOURCE_LOCATION (TYPE_MAIN_DECL (ctype));
+ tree comp = do_one_comp (loc, info, BINFO_TYPE (base_binfo),
+ lhs_base, rhs_base);
+ if (comp == error_mark_node)
+ {
+ bad = true;
+ continue;
+ }
+
+ comps.safe_push (comp);
+ }
+
+ /* Now compare the field subobjects. */
+ for (tree field = next_initializable_field (TYPE_FIELDS (ctype));
+ field;
+ field = next_initializable_field (DECL_CHAIN (field)))
+ {
+ if (DECL_VIRTUAL_P (field) || DECL_FIELD_IS_BASE (field))
+ /* We ignore the vptr, and we already handled bases. */
+ continue;
+
+ tree expr_type = TREE_TYPE (field);
+
+ location_t field_loc = DECL_SOURCE_LOCATION (field);
+
+ /* A defaulted comparison operator function for class C is defined as
+ deleted if any non-static data member of C is of reference type or
+ C has variant members. */
+ if (TREE_CODE (expr_type) == REFERENCE_TYPE)
+ {
+ if (complain & tf_error)
+ inform (field_loc, "cannot default compare "
+ "reference member %qD", field);
+ bad = true;
+ continue;
+ }
+ else if (ANON_UNION_TYPE_P (expr_type)
+ && next_initializable_field (TYPE_FIELDS (expr_type)))
+ {
+ if (complain & tf_error)
+ inform (field_loc, "cannot default compare "
+ "anonymous union member");
+ bad = true;
+ continue;
+ }
+
+ tree lhs_mem = build3_loc (field_loc, COMPONENT_REF, expr_type, lhs,
+ field, NULL_TREE);
+ tree rhs_mem = build3_loc (field_loc, COMPONENT_REF, expr_type, rhs,
+ field, NULL_TREE);
+ tree loop_indexes = NULL_TREE;
+ while (TREE_CODE (expr_type) == ARRAY_TYPE)
+ {
+ /* Flexible array member. */
+ if (TYPE_DOMAIN (expr_type) == NULL_TREE
+ || TYPE_MAX_VALUE (TYPE_DOMAIN (expr_type)) == NULL_TREE)
+ {
+ if (complain & tf_error)
+ inform (field_loc, "cannot default compare "
+ "flexible array member");
+ bad = true;
+ break;
+ }
+ tree maxval = TYPE_MAX_VALUE (TYPE_DOMAIN (expr_type));
+ /* [0] array. No subobjects to compare, just skip it. */
+ if (integer_all_onesp (maxval))
+ break;
+ tree idx;
+ /* [1] array, no loop needed, just add [0] ARRAY_REF.
+ Similarly if !defining. */
+ if (integer_zerop (maxval) || !defining)
+ idx = size_zero_node;
+ /* Some other array, will need runtime loop. */
+ else
+ {
+ idx = force_target_expr (sizetype, maxval, complain);
+ loop_indexes = tree_cons (idx, NULL_TREE, loop_indexes);
+ }
+ expr_type = TREE_TYPE (expr_type);
+ lhs_mem = build4_loc (field_loc, ARRAY_REF, expr_type, lhs_mem,
+ idx, NULL_TREE, NULL_TREE);
+ rhs_mem = build4_loc (field_loc, ARRAY_REF, expr_type, rhs_mem,
+ idx, NULL_TREE, NULL_TREE);
+ }
+ if (TREE_CODE (expr_type) == ARRAY_TYPE)
+ continue;
+
+ tree comp = do_one_comp (field_loc, info, field, lhs_mem, rhs_mem);
+ if (comp == error_mark_node)
+ {
+ bad = true;
+ continue;
+ }
+
+ /* Most of the time, comp is the expression that should be evaluated
+ to compare the two members. If the expression needs to be
+ evaluated more than once in a loop, it will be a TREE_LIST
+ instead, whose TREE_VALUE is the expression for one array element,
+ TREE_PURPOSE is innermost iterator temporary and if the array
+ is multidimensional, TREE_CHAIN will contain another TREE_LIST
+ with second innermost iterator in its TREE_PURPOSE and so on. */
+ if (loop_indexes)
+ {
+ TREE_VALUE (loop_indexes) = comp;
+ comp = loop_indexes;
+ }
+ comps.safe_push (comp);
+ }
+ if (code == SPACESHIP_EXPR && is_auto (rettype))
+ {
+ rettype = common_comparison_type (comps);
+ apply_deduced_return_type (fndecl, rettype);
+ }
+ if (bad)
+ {
+ DECL_DELETED_FN (fndecl) = true;
+ goto out;
+ }
+ for (unsigned i = 0; i < comps.length(); ++i)
+ {
+ tree comp = comps[i];
+ tree eq, retval = NULL_TREE, if_ = NULL_TREE;
+ tree loop_indexes = NULL_TREE;
+ if (defining)
+ {
+ if (TREE_CODE (comp) == TREE_LIST)
+ {
+ loop_indexes = comp;
+ comp = TREE_VALUE (comp);
+ loop_indexes = nreverse (loop_indexes);
+ for (tree loop_index = loop_indexes; loop_index;
+ loop_index = TREE_CHAIN (loop_index))
+ {
+ tree for_stmt = begin_for_stmt (NULL_TREE, NULL_TREE);
+ tree idx = TREE_PURPOSE (loop_index);
+ tree maxval = TARGET_EXPR_INITIAL (idx);
+ TARGET_EXPR_INITIAL (idx) = size_zero_node;
+ add_stmt (idx);
+ finish_init_stmt (for_stmt);
+ finish_for_cond (build2 (LE_EXPR, boolean_type_node, idx,
+ maxval), for_stmt, false, 0);
+ finish_for_expr (cp_build_unary_op (PREINCREMENT_EXPR,
+ TARGET_EXPR_SLOT (idx),
+ false, complain),
+ for_stmt);
+ /* Store in TREE_VALUE the for_stmt tree, so that we can
+ later on call finish_for_stmt on it (in the reverse
+ order). */
+ TREE_VALUE (loop_index) = for_stmt;
+ }
+ loop_indexes = nreverse (loop_indexes);
+ }
+ if_ = begin_if_stmt ();
+ }
+ /* Spaceship is specified to use !=, but for the comparison category
+ types, != is equivalent to !(==), so let's use == directly. */
+ if (code == EQ_EXPR)
+ {
+ /* if (x==y); else return false; */
+ eq = comp;
+ retval = boolean_false_node;
+ }
+ else
+ {
+ /* if (auto v = x<=>y, v == 0); else return v; */
+ if (TREE_CODE (comp) == SPACESHIP_EXPR)
+ TREE_TYPE (comp) = rettype;
+ else
+ comp = build_static_cast (input_location, rettype, comp,
+ complain);
+ info.check (comp);
+ if (defining)
+ {
+ tree var = create_temporary_var (rettype);
+ pushdecl (var);
+ cp_finish_decl (var, comp, false, NULL_TREE, flags);
+ comp = retval = var;
+ }
+ eq = build_new_op (info.loc, EQ_EXPR, flags, comp,
+ integer_zero_node, NULL_TREE, NULL_TREE,
+ NULL, complain);
+ }
+ tree ceq = contextual_conv_bool (eq, complain);
+ info.check (ceq);
+ if (defining)
+ {
+ finish_if_stmt_cond (ceq, if_);
+ finish_then_clause (if_);
+ begin_else_clause (if_);
+ finish_return_stmt (retval);
+ finish_else_clause (if_);
+ finish_if_stmt (if_);
+ for (tree loop_index = loop_indexes; loop_index;
+ loop_index = TREE_CHAIN (loop_index))
+ finish_for_stmt (TREE_VALUE (loop_index));
+ }
+ }
+ if (defining)
+ {
+ tree val;
+ if (code == EQ_EXPR)
+ val = boolean_true_node;
+ else
+ {
+ tree seql = lookup_comparison_result (cc_strong_ordering,
+ "equal", complain);
+ val = build_static_cast (input_location, rettype, seql,
+ complain);
+ }
+ finish_return_stmt (val);
+ }
+ }
+ else if (code == NE_EXPR)
+ {
+ tree comp = build_new_op (info.loc, EQ_EXPR, flags, lhs, rhs,
+ NULL_TREE, NULL_TREE, NULL, complain);
+ comp = contextual_conv_bool (comp, complain);
+ info.check (comp);
+ if (defining)
+ {
+ tree neg = build1 (TRUTH_NOT_EXPR, boolean_type_node, comp);
+ finish_return_stmt (neg);
+ }
+ }
+ else
+ {
+ tree comp = build_new_op (info.loc, SPACESHIP_EXPR, flags, lhs, rhs,
+ NULL_TREE, NULL_TREE, NULL, complain);
+ tree comp2 = build_new_op (info.loc, code, flags, comp, integer_zero_node,
+ NULL_TREE, NULL_TREE, NULL, complain);
+ info.check (comp2);
+ if (defining)
+ finish_return_stmt (comp2);
+ }
+
+ out:
+ if (defining)
+ finish_compound_stmt (compound_stmt);
+ else
+ --cp_unevaluated_operand;
+}
+
+/* True iff DECL is an implicitly-declared special member function with no real
+ source location, so we can use its DECL_SOURCE_LOCATION to remember where we
+ triggered its synthesis. */
+
+bool
+decl_remember_implicit_trigger_p (tree decl)
+{
+ if (!DECL_ARTIFICIAL (decl))
+ return false;
+ special_function_kind sfk = special_function_p (decl);
+ /* Inherited constructors have the location of their using-declaration, and
+ operator== has the location of the corresponding operator<=>. */
+ return (sfk != sfk_inheriting_constructor
+ && sfk != sfk_comparison);
+}
+
+/* Synthesize FNDECL, a non-static member function. */
+
+void
+synthesize_method (tree fndecl)
+{
+ bool nested = (current_function_decl != NULL_TREE);
+ tree context = decl_function_context (fndecl);
+ bool need_body = true;
+ tree stmt;
+ location_t save_input_location = input_location;
+ int error_count = errorcount;
+ int warning_count = warningcount + werrorcount;
+ special_function_kind sfk = special_function_p (fndecl);
+
+ /* Reset the source location, we might have been previously
+ deferred, and thus have saved where we were first needed. */
+ if (decl_remember_implicit_trigger_p (fndecl))
+ DECL_SOURCE_LOCATION (fndecl)
+ = DECL_SOURCE_LOCATION (TYPE_NAME (DECL_CONTEXT (fndecl)));
+
+ /* If we've been asked to synthesize a clone, just synthesize the
+ cloned function instead. Doing so will automatically fill in the
+ body for the clone. */
+ if (DECL_CLONED_FUNCTION_P (fndecl))
+ fndecl = DECL_CLONED_FUNCTION (fndecl);
+
+ /* We may be in the middle of deferred access check. Disable
+ it now. */
+ push_deferring_access_checks (dk_no_deferred);
+
+ if (! context)
+ push_to_top_level ();
+ else if (nested)
+ push_function_context ();
+
+ input_location = DECL_SOURCE_LOCATION (fndecl);
+
+ start_preparsed_function (fndecl, NULL_TREE, SF_DEFAULT | SF_PRE_PARSED);
+ stmt = begin_function_body ();
+
+ if (DECL_ASSIGNMENT_OPERATOR_P (fndecl)
+ && DECL_OVERLOADED_OPERATOR_IS (fndecl, NOP_EXPR))
+ {
+ do_build_copy_assign (fndecl);
+ need_body = false;
+ }
+ else if (DECL_CONSTRUCTOR_P (fndecl))
+ {
+ tree arg_chain = FUNCTION_FIRST_USER_PARMTYPE (fndecl);
+ if (arg_chain != void_list_node)
+ do_build_copy_constructor (fndecl);
+ else
+ finish_mem_initializers (NULL_TREE);
+ }
+ else if (sfk == sfk_comparison)
+ {
+ /* Pass tf_none so the function is just deleted if there's a problem. */
+ build_comparison_op (fndecl, true, tf_none);
+ need_body = false;
+ }
+
+ /* If we haven't yet generated the body of the function, just
+ generate an empty compound statement. */
+ if (need_body)
+ {
+ tree compound_stmt;
+ compound_stmt = begin_compound_stmt (BCS_FN_BODY);
+ finish_compound_stmt (compound_stmt);
+ }
+
+ finish_function_body (stmt);
+ finish_function (/*inline_p=*/false);
+
+ if (!DECL_DELETED_FN (fndecl))
+ expand_or_defer_fn (fndecl);
+
+ input_location = save_input_location;
+
+ if (! context)
+ pop_from_top_level ();
+ else if (nested)
+ pop_function_context ();
+
+ pop_deferring_access_checks ();
+
+ if (error_count != errorcount || warning_count != warningcount + werrorcount)
+ if (DECL_ARTIFICIAL (fndecl))
+ inform (input_location, "synthesized method %qD first required here",
+ fndecl);
+}
+
+/* Like synthesize_method, but don't actually synthesize defaulted comparison
+ methods if their class is still incomplete. Just deduce the return
+ type in that case. */
+
+void
+maybe_synthesize_method (tree fndecl)
+{
+ if (special_function_p (fndecl) == sfk_comparison)
+ {
+ tree lhs = DECL_ARGUMENTS (fndecl);
+ if (is_this_parameter (lhs))
+ lhs = cp_build_fold_indirect_ref (lhs);
+ else
+ lhs = convert_from_reference (lhs);
+ tree ctype = TYPE_MAIN_VARIANT (TREE_TYPE (lhs));
+ if (!COMPLETE_TYPE_P (ctype))
+ {
+ push_deferring_access_checks (dk_no_deferred);
+ build_comparison_op (fndecl, false, tf_none);
+ pop_deferring_access_checks ();
+ return;
+ }
+ }
+ return synthesize_method (fndecl);
+}
+
+/* Build a reference to type TYPE with cv-quals QUALS, which is an
+ rvalue if RVALUE is true. */
+
+static tree
+build_stub_type (tree type, int quals, bool rvalue)
+{
+ tree argtype = cp_build_qualified_type (type, quals);
+ return cp_build_reference_type (argtype, rvalue);
+}
+
+/* Build a dummy glvalue from dereferencing a dummy reference of type
+ REFTYPE. */
+
+tree
+build_stub_object (tree reftype)
+{
+ if (!TYPE_REF_P (reftype))
+ reftype = cp_build_reference_type (reftype, /*rval*/true);
+ tree stub = build1 (CONVERT_EXPR, reftype, integer_one_node);
+ return convert_from_reference (stub);
+}
+
+/* Determine which function will be called when looking up NAME in TYPE,
+ called with a single ARGTYPE argument, or no argument if ARGTYPE is
+ null. FLAGS and COMPLAIN are as for build_new_method_call.
+
+ Returns a FUNCTION_DECL if all is well.
+ Returns NULL_TREE if overload resolution failed.
+ Returns error_mark_node if the chosen function cannot be called. */
+
+static tree
+locate_fn_flags (tree type, tree name, tree argtype, int flags,
+ tsubst_flags_t complain)
+{
+ tree ob, fn, fns, binfo, rval;
+
+ if (TYPE_P (type))
+ binfo = TYPE_BINFO (type);
+ else
+ {
+ binfo = type;
+ type = BINFO_TYPE (binfo);
+ }
+
+ ob = build_stub_object (cp_build_reference_type (type, false));
+ releasing_vec args;
+ if (argtype)
+ {
+ if (TREE_CODE (argtype) == TREE_LIST)
+ {
+ for (tree elt = argtype; elt && elt != void_list_node;
+ elt = TREE_CHAIN (elt))
+ {
+ tree type = TREE_VALUE (elt);
+ tree arg = build_stub_object (type);
+ vec_safe_push (args, arg);
+ }
+ }
+ else
+ {
+ tree arg = build_stub_object (argtype);
+ args->quick_push (arg);
+ }
+ }
+
+ fns = lookup_fnfields (binfo, name, 0, complain);
+ rval = build_new_method_call (ob, fns, &args, binfo, flags, &fn, complain);
+
+ if (fn && rval == error_mark_node)
+ return rval;
+ else
+ return fn;
+}
+
+/* Locate the dtor of TYPE. */
+
+tree
+get_dtor (tree type, tsubst_flags_t complain)
+{
+ tree fn = locate_fn_flags (type, complete_dtor_identifier, NULL_TREE,
+ LOOKUP_NORMAL, complain);
+ if (fn == error_mark_node)
+ return NULL_TREE;
+ return fn;
+}
+
+/* Locate the default ctor of TYPE. */
+
+tree
+locate_ctor (tree type)
+{
+ tree fn;
+
+ push_deferring_access_checks (dk_no_check);
+ fn = locate_fn_flags (type, complete_ctor_identifier, NULL_TREE,
+ LOOKUP_SPECULATIVE, tf_none);
+ pop_deferring_access_checks ();
+ if (fn == error_mark_node)
+ return NULL_TREE;
+ return fn;
+}
+
+/* Likewise, but give any appropriate errors. */
+
+tree
+get_default_ctor (tree type)
+{
+ tree fn = locate_fn_flags (type, complete_ctor_identifier, NULL_TREE,
+ LOOKUP_NORMAL, tf_warning_or_error);
+ if (fn == error_mark_node)
+ return NULL_TREE;
+ return fn;
+}
+
+/* Locate the copy ctor of TYPE. */
+
+tree
+get_copy_ctor (tree type, tsubst_flags_t complain)
+{
+ int quals = (TYPE_HAS_CONST_COPY_CTOR (type)
+ ? TYPE_QUAL_CONST : TYPE_UNQUALIFIED);
+ tree argtype = build_stub_type (type, quals, false);
+ tree fn = locate_fn_flags (type, complete_ctor_identifier, argtype,
+ LOOKUP_NORMAL, complain);
+ if (fn == error_mark_node)
+ return NULL_TREE;
+ return fn;
+}
+
+/* Locate the copy assignment operator of TYPE. */
+
+tree
+get_copy_assign (tree type)
+{
+ int quals = (TYPE_HAS_CONST_COPY_ASSIGN (type)
+ ? TYPE_QUAL_CONST : TYPE_UNQUALIFIED);
+ tree argtype = build_stub_type (type, quals, false);
+ tree fn = locate_fn_flags (type, assign_op_identifier, argtype,
+ LOOKUP_NORMAL, tf_warning_or_error);
+ if (fn == error_mark_node)
+ return NULL_TREE;
+ return fn;
+}
+
+/* walk_tree helper function for is_trivially_xible. If *TP is a call,
+ return it if it calls something other than a trivial special member
+ function. */
+
+static tree
+check_nontriv (tree *tp, int *, void *)
+{
+ tree fn = cp_get_callee (*tp);
+ if (fn == NULL_TREE)
+ return NULL_TREE;
+
+ if (TREE_CODE (fn) == ADDR_EXPR)
+ fn = TREE_OPERAND (fn, 0);
+
+ if (TREE_CODE (fn) != FUNCTION_DECL
+ || !trivial_fn_p (fn))
+ return fn;
+ return NULL_TREE;
+}
+
+/* Return declval<T>() = declval<U>() treated as an unevaluated operand. */
+
+static tree
+assignable_expr (tree to, tree from)
+{
+ cp_unevaluated cp_uneval_guard;
+ to = build_stub_object (to);
+ from = build_stub_object (from);
+ tree r = cp_build_modify_expr (input_location, to, NOP_EXPR, from, tf_none);
+ return r;
+}
+
+/* The predicate condition for a template specialization
+ is_constructible<T, Args...> shall be satisfied if and only if the
+ following variable definition would be well-formed for some invented
+ variable t: T t(create<Args>()...);
+
+ Return something equivalent in well-formedness and triviality. */
+
+static tree
+constructible_expr (tree to, tree from)
+{
+ tree expr;
+ cp_unevaluated cp_uneval_guard;
+ if (CLASS_TYPE_P (to))
+ {
+ tree ctype = to;
+ vec<tree, va_gc> *args = NULL;
+ if (!TYPE_REF_P (to))
+ to = cp_build_reference_type (to, /*rval*/false);
+ tree ob = build_stub_object (to);
+ for (; from; from = TREE_CHAIN (from))
+ vec_safe_push (args, build_stub_object (TREE_VALUE (from)));
+ expr = build_special_member_call (ob, complete_ctor_identifier, &args,
+ ctype, LOOKUP_NORMAL, tf_none);
+ if (expr == error_mark_node)
+ return error_mark_node;
+ /* The current state of the standard vis-a-vis LWG 2116 is that
+ is_*constructible involves destruction as well. */
+ if (type_build_dtor_call (ctype))
+ {
+ tree dtor = build_special_member_call (ob, complete_dtor_identifier,
+ NULL, ctype, LOOKUP_NORMAL,
+ tf_none);
+ if (dtor == error_mark_node)
+ return error_mark_node;
+ if (!TYPE_HAS_TRIVIAL_DESTRUCTOR (ctype))
+ expr = build2 (COMPOUND_EXPR, void_type_node, expr, dtor);
+ }
+ }
+ else
+ {
+ if (from == NULL_TREE)
+ return build_value_init (strip_array_types (to), tf_none);
+ const int len = list_length (from);
+ if (len > 1)
+ {
+ if (cxx_dialect < cxx20)
+ /* Too many initializers. */
+ return error_mark_node;
+
+ /* In C++20 this is well-formed:
+ using T = int[2];
+ T t(1, 2);
+ which means that std::is_constructible_v<int[2], int, int>
+ should be true. */
+ vec<constructor_elt, va_gc> *v;
+ vec_alloc (v, len);
+ for (tree t = from; t; t = TREE_CHAIN (t))
+ {
+ tree stub = build_stub_object (TREE_VALUE (t));
+ constructor_elt elt = { NULL_TREE, stub };
+ v->quick_push (elt);
+ }
+ from = build_constructor (init_list_type_node, v);
+ CONSTRUCTOR_IS_DIRECT_INIT (from) = true;
+ CONSTRUCTOR_IS_PAREN_INIT (from) = true;
+ }
+ else
+ from = build_stub_object (TREE_VALUE (from));
+ expr = perform_direct_initialization_if_possible (to, from,
+ /*cast*/false,
+ tf_none);
+ /* If t(e) didn't work, maybe t{e} will. */
+ if (expr == NULL_TREE
+ && len == 1
+ && cxx_dialect >= cxx20)
+ {
+ from = build_constructor_single (init_list_type_node, NULL_TREE,
+ from);
+ CONSTRUCTOR_IS_DIRECT_INIT (from) = true;
+ CONSTRUCTOR_IS_PAREN_INIT (from) = true;
+ expr = perform_direct_initialization_if_possible (to, from,
+ /*cast*/false,
+ tf_none);
+ }
+ }
+ return expr;
+}
+
+/* Returns a tree iff TO is assignable (if CODE is MODIFY_EXPR) or
+ constructible (otherwise) from FROM, which is a single type for
+ assignment or a list of types for construction. */
+
+static tree
+is_xible_helper (enum tree_code code, tree to, tree from, bool trivial)
+{
+ to = complete_type (to);
+ deferring_access_check_sentinel acs (dk_no_deferred);
+ if (VOID_TYPE_P (to) || ABSTRACT_CLASS_TYPE_P (to)
+ || (from && FUNC_OR_METHOD_TYPE_P (from)
+ && (TYPE_READONLY (from) || FUNCTION_REF_QUALIFIED (from))))
+ return error_mark_node;
+ tree expr;
+ if (code == MODIFY_EXPR)
+ expr = assignable_expr (to, from);
+ else if (trivial && from && TREE_CHAIN (from)
+ && cxx_dialect < cxx20)
+ return error_mark_node; // only 0- and 1-argument ctors can be trivial
+ // before C++20 aggregate paren init
+ else if (TREE_CODE (to) == ARRAY_TYPE && !TYPE_DOMAIN (to))
+ return error_mark_node; // can't construct an array of unknown bound
+ else
+ expr = constructible_expr (to, from);
+ return expr;
+}
+
+/* Returns true iff TO is trivially assignable (if CODE is MODIFY_EXPR) or
+ constructible (otherwise) from FROM, which is a single type for
+ assignment or a list of types for construction. */
+
+bool
+is_trivially_xible (enum tree_code code, tree to, tree from)
+{
+ tree expr = is_xible_helper (code, to, from, /*trivial*/true);
+ if (expr == NULL_TREE || expr == error_mark_node)
+ return false;
+ tree nt = cp_walk_tree_without_duplicates (&expr, check_nontriv, NULL);
+ return !nt;
+}
+
+/* Returns true iff TO is nothrow assignable (if CODE is MODIFY_EXPR) or
+ constructible (otherwise) from FROM, which is a single type for
+ assignment or a list of types for construction. */
+
+bool
+is_nothrow_xible (enum tree_code code, tree to, tree from)
+{
+ tree expr = is_xible_helper (code, to, from, /*trivial*/false);
+ if (expr == NULL_TREE || expr == error_mark_node)
+ return false;
+ return expr_noexcept_p (expr, tf_none);
+}
+
+/* Returns true iff TO is assignable (if CODE is MODIFY_EXPR) or
+ constructible (otherwise) from FROM, which is a single type for
+ assignment or a list of types for construction. */
+
+bool
+is_xible (enum tree_code code, tree to, tree from)
+{
+ tree expr = is_xible_helper (code, to, from, /*trivial*/false);
+ if (expr == error_mark_node)
+ return false;
+ return !!expr;
+}
+
+/* Categorize various special_function_kinds. */
+#define SFK_CTOR_P(sfk) \
+ ((sfk) >= sfk_constructor && (sfk) <= sfk_move_constructor)
+#define SFK_DTOR_P(sfk) \
+ ((sfk) == sfk_destructor || (sfk) == sfk_virtual_destructor)
+#define SFK_ASSIGN_P(sfk) \
+ ((sfk) == sfk_copy_assignment || (sfk) == sfk_move_assignment)
+#define SFK_COPY_P(sfk) \
+ ((sfk) == sfk_copy_constructor || (sfk) == sfk_copy_assignment)
+#define SFK_MOVE_P(sfk) \
+ ((sfk) == sfk_move_constructor || (sfk) == sfk_move_assignment)
+
+/* Subroutine of synthesized_method_walk. Update SPEC_P, TRIVIAL_P and
+ DELETED_P or give an error message MSG with argument ARG. */
+
+static void
+process_subob_fn (tree fn, special_function_kind sfk, tree *spec_p,
+ bool *trivial_p, bool *deleted_p, bool *constexpr_p,
+ bool diag, tree arg, bool dtor_from_ctor = false)
+{
+ if (!fn || fn == error_mark_node)
+ {
+ if (deleted_p)
+ *deleted_p = true;
+ return;
+ }
+
+ if (spec_p)
+ {
+ if (!maybe_instantiate_noexcept (fn))
+ *spec_p = error_mark_node;
+ else
+ {
+ tree raises = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn));
+ *spec_p = merge_exception_specifiers (*spec_p, raises);
+ }
+ }
+
+ if (!trivial_fn_p (fn) && !dtor_from_ctor)
+ {
+ if (trivial_p)
+ *trivial_p = false;
+ if (TREE_CODE (arg) == FIELD_DECL
+ && TREE_CODE (DECL_CONTEXT (arg)) == UNION_TYPE)
+ {
+ if (deleted_p)
+ *deleted_p = true;
+ if (diag)
+ error ("union member %q+D with non-trivial %qD", arg, fn);
+ }
+ }
+
+ if (constexpr_p && !DECL_DECLARED_CONSTEXPR_P (fn))
+ {
+ *constexpr_p = false;
+ if (diag)
+ {
+ inform (DECL_SOURCE_LOCATION (fn),
+ SFK_DTOR_P (sfk)
+ ? G_("defaulted destructor calls non-%<constexpr%> %qD")
+ : G_("defaulted constructor calls non-%<constexpr%> %qD"),
+ fn);
+ explain_invalid_constexpr_fn (fn);
+ }
+ }
+}
+
+/* Subroutine of synthesized_method_walk to allow recursion into anonymous
+ aggregates. If DTOR_FROM_CTOR is true, we're walking subobject destructors
+ called from a synthesized constructor, in which case we don't consider
+ the triviality of the subobject destructor. */
+
+static void
+walk_field_subobs (tree fields, special_function_kind sfk, tree fnname,
+ int quals, tree *spec_p, bool *trivial_p,
+ bool *deleted_p, bool *constexpr_p,
+ bool diag, int flags, tsubst_flags_t complain,
+ bool dtor_from_ctor)
+{
+ tree field;
+ for (field = fields; field; field = DECL_CHAIN (field))
+ {
+ tree mem_type, argtype, rval;
+
+ if (TREE_CODE (field) != FIELD_DECL
+ || DECL_ARTIFICIAL (field)
+ || DECL_UNNAMED_BIT_FIELD (field))
+ continue;
+
+ /* Variant members only affect deletedness. In particular, they don't
+ affect the exception-specification of a user-provided destructor,
+ which we're figuring out via get_defaulted_eh_spec. So if we aren't
+ asking if this is deleted, don't even look up the function; we don't
+ want an error about a deleted function we aren't actually calling. */
+ if (sfk == sfk_destructor && deleted_p == NULL
+ && TREE_CODE (DECL_CONTEXT (field)) == UNION_TYPE)
+ break;
+
+ mem_type = strip_array_types (TREE_TYPE (field));
+ if (SFK_ASSIGN_P (sfk))
+ {
+ bool bad = true;
+ if (CP_TYPE_CONST_P (mem_type) && !CLASS_TYPE_P (mem_type))
+ {
+ if (diag)
+ error ("non-static const member %q#D, cannot use default "
+ "assignment operator", field);
+ }
+ else if (TYPE_REF_P (mem_type))
+ {
+ if (diag)
+ error ("non-static reference member %q#D, cannot use "
+ "default assignment operator", field);
+ }
+ else
+ bad = false;
+
+ if (bad && deleted_p)
+ *deleted_p = true;
+ }
+ else if (sfk == sfk_constructor || sfk == sfk_inheriting_constructor)
+ {
+ bool bad;
+
+ if (DECL_INITIAL (field))
+ {
+ if (diag && DECL_INITIAL (field) == error_mark_node)
+ inform (DECL_SOURCE_LOCATION (field),
+ "initializer for %q#D is invalid", field);
+ if (trivial_p)
+ *trivial_p = false;
+ /* Core 1351: If the field has an NSDMI that could throw, the
+ default constructor is noexcept(false). */
+ if (spec_p)
+ {
+ tree nsdmi = get_nsdmi (field, /*ctor*/false, complain);
+ if (nsdmi == error_mark_node)
+ *spec_p = error_mark_node;
+ else if (*spec_p != error_mark_node
+ && !expr_noexcept_p (nsdmi, tf_none))
+ *spec_p = noexcept_false_spec;
+ }
+ /* Don't do the normal processing. */
+ continue;
+ }
+
+ bad = false;
+ if (CP_TYPE_CONST_P (mem_type)
+ && default_init_uninitialized_part (mem_type))
+ {
+ if (diag)
+ {
+ error ("uninitialized const member in %q#T",
+ current_class_type);
+ inform (DECL_SOURCE_LOCATION (field),
+ "%q#D should be initialized", field);
+ }
+ bad = true;
+ }
+ else if (TYPE_REF_P (mem_type))
+ {
+ if (diag)
+ {
+ error ("uninitialized reference member in %q#T",
+ current_class_type);
+ inform (DECL_SOURCE_LOCATION (field),
+ "%q#D should be initialized", field);
+ }
+ bad = true;
+ }
+
+ if (bad && deleted_p)
+ *deleted_p = true;
+
+ /* Before C++20, for an implicitly-defined default constructor to
+ be constexpr, every member must have a user-provided default
+ constructor or an explicit initializer. */
+ if (constexpr_p
+ && cxx_dialect < cxx20
+ && !CLASS_TYPE_P (mem_type)
+ && TREE_CODE (DECL_CONTEXT (field)) != UNION_TYPE)
+ {
+ *constexpr_p = false;
+ if (diag)
+ inform (DECL_SOURCE_LOCATION (field),
+ "defaulted default constructor does not "
+ "initialize %q#D", field);
+ }
+ }
+ else if (sfk == sfk_copy_constructor)
+ {
+ /* 12.8p11b5 */
+ if (TYPE_REF_P (mem_type)
+ && TYPE_REF_IS_RVALUE (mem_type))
+ {
+ if (diag)
+ error ("copying non-static data member %q#D of rvalue "
+ "reference type", field);
+ if (deleted_p)
+ *deleted_p = true;
+ }
+ }
+
+ if (!CLASS_TYPE_P (mem_type))
+ continue;
+
+ if (ANON_AGGR_TYPE_P (mem_type))
+ {
+ walk_field_subobs (TYPE_FIELDS (mem_type), sfk, fnname, quals,
+ spec_p, trivial_p, deleted_p, constexpr_p,
+ diag, flags, complain, dtor_from_ctor);
+ continue;
+ }
+
+ if (SFK_COPY_P (sfk) || SFK_MOVE_P (sfk))
+ {
+ int mem_quals = cp_type_quals (mem_type) | quals;
+ if (DECL_MUTABLE_P (field))
+ mem_quals &= ~TYPE_QUAL_CONST;
+ argtype = build_stub_type (mem_type, mem_quals, SFK_MOVE_P (sfk));
+ }
+ else
+ argtype = NULL_TREE;
+
+ rval = locate_fn_flags (mem_type, fnname, argtype, flags, complain);
+
+ process_subob_fn (rval, sfk, spec_p, trivial_p, deleted_p,
+ constexpr_p, diag, field, dtor_from_ctor);
+ }
+}
+
+/* Base walker helper for synthesized_method_walk. Inspect a direct
+ or virtual base. BINFO is the parent type's binfo. BASE_BINFO is
+ the base binfo of interests. All other parms are as for
+ synthesized_method_walk, or its local vars. */
+
+static tree
+synthesized_method_base_walk (tree binfo, tree base_binfo,
+ special_function_kind sfk, tree fnname, int quals,
+ tree *inheriting_ctor, tree inherited_parms,
+ int flags, bool diag,
+ tree *spec_p, bool *trivial_p,
+ bool *deleted_p, bool *constexpr_p)
+{
+ bool inherited_binfo = false;
+ tree argtype = NULL_TREE;
+ deferring_kind defer = dk_no_deferred;
+
+ if (SFK_COPY_P (sfk) || SFK_MOVE_P (sfk))
+ argtype = build_stub_type (BINFO_TYPE (base_binfo), quals, SFK_MOVE_P (sfk));
+ else if (inheriting_ctor
+ && (inherited_binfo
+ = binfo_inherited_from (binfo, base_binfo, *inheriting_ctor)))
+ {
+ argtype = inherited_parms;
+ /* Don't check access on the inherited constructor. */
+ if (flag_new_inheriting_ctors)
+ defer = dk_deferred;
+ }
+ else if (cxx_dialect >= cxx14 && sfk == sfk_virtual_destructor
+ && BINFO_VIRTUAL_P (base_binfo)
+ && ABSTRACT_CLASS_TYPE_P (BINFO_TYPE (binfo)))
+ /* Don't check access when looking at vbases of abstract class's
+ virtual destructor. */
+ defer = dk_no_check;
+
+ if (defer != dk_no_deferred)
+ push_deferring_access_checks (defer);
+ tree rval = locate_fn_flags (base_binfo, fnname, argtype, flags,
+ diag ? tf_warning_or_error : tf_none);
+ if (defer != dk_no_deferred)
+ pop_deferring_access_checks ();
+
+ /* Replace an inherited template with the appropriate specialization. */
+ if (inherited_binfo && rval
+ && DECL_P (*inheriting_ctor) && DECL_P (rval)
+ && DECL_CONTEXT (*inheriting_ctor) == DECL_CONTEXT (rval))
+ *inheriting_ctor = DECL_CLONED_FUNCTION (rval);
+
+ process_subob_fn (rval, sfk, spec_p, trivial_p, deleted_p,
+ constexpr_p, diag, BINFO_TYPE (base_binfo));
+ if (SFK_CTOR_P (sfk)
+ && (!BINFO_VIRTUAL_P (base_binfo)
+ || TYPE_HAS_NONTRIVIAL_DESTRUCTOR (BINFO_TYPE (base_binfo))))
+ {
+ /* In a constructor we also need to check the subobject
+ destructors for cleanup of partially constructed objects. */
+ tree dtor = locate_fn_flags (base_binfo, complete_dtor_identifier,
+ NULL_TREE, flags,
+ diag ? tf_warning_or_error : tf_none);
+ /* Note that we don't pass down trivial_p; the subobject
+ destructors don't affect triviality of the constructor. Nor
+ do they affect constexpr-ness (a constant expression doesn't
+ throw) or exception-specification (a throw from one of the
+ dtors would be a double-fault). */
+ process_subob_fn (dtor, sfk, NULL, NULL, deleted_p, NULL, false,
+ BINFO_TYPE (base_binfo), /*dtor_from_ctor*/true);
+ }
+
+ return rval;
+}
+
+/* The caller wants to generate an implicit declaration of SFK for
+ CTYPE which is const if relevant and CONST_P is set. If SPEC_P,
+ TRIVIAL_P, DELETED_P or CONSTEXPR_P are non-null, set their
+ referent appropriately. If DIAG is true, we're either being called
+ from maybe_explain_implicit_delete to give errors, or if
+ CONSTEXPR_P is non-null, from explain_invalid_constexpr_fn. */
+
+static void
+synthesized_method_walk (tree ctype, special_function_kind sfk, bool const_p,
+ tree *spec_p, bool *trivial_p, bool *deleted_p,
+ bool *constexpr_p, bool diag,
+ tree *inheriting_ctor, tree inherited_parms)
+{
+ tree binfo, base_binfo;
+ int i;
+
+ /* SFK must be exactly one category. */
+ gcc_checking_assert (SFK_DTOR_P(sfk) + SFK_CTOR_P(sfk)
+ + SFK_ASSIGN_P(sfk) == 1);
+
+ if (spec_p)
+ *spec_p = (cxx_dialect >= cxx11 ? noexcept_true_spec : empty_except_spec);
+
+ if (deleted_p)
+ {
+ /* "The closure type associated with a lambda-expression has a deleted
+ default constructor and a deleted copy assignment operator."
+ This is diagnosed in maybe_explain_implicit_delete.
+ In C++20, only lambda-expressions with lambda-captures have those
+ deleted. */
+ if (LAMBDA_TYPE_P (ctype)
+ && (sfk == sfk_constructor || sfk == sfk_copy_assignment)
+ && (cxx_dialect < cxx20
+ || LAMBDA_EXPR_CAPTURE_LIST (CLASSTYPE_LAMBDA_EXPR (ctype))
+ || LAMBDA_EXPR_DEFAULT_CAPTURE_MODE
+ (CLASSTYPE_LAMBDA_EXPR (ctype)) != CPLD_NONE))
+ {
+ *deleted_p = true;
+ return;
+ }
+
+ *deleted_p = false;
+ }
+
+ bool check_vdtor = false;
+ tree fnname;
+
+ if (SFK_DTOR_P (sfk))
+ {
+ check_vdtor = true;
+ /* The synthesized method will call base dtors, but check complete
+ here to avoid having to deal with VTT. */
+ fnname = complete_dtor_identifier;
+ }
+ else if (SFK_ASSIGN_P (sfk))
+ fnname = assign_op_identifier;
+ else
+ fnname = complete_ctor_identifier;
+
+ gcc_assert ((sfk == sfk_inheriting_constructor)
+ == (inheriting_ctor && *inheriting_ctor != NULL_TREE));
+
+ /* If that user-written default constructor would satisfy the
+ requirements of a constexpr constructor (7.1.5), the
+ implicitly-defined default constructor is constexpr.
+
+ The implicitly-defined copy/move assignment operator is constexpr if
+ - X is a literal type, and
+ - the assignment operator selected to copy/move each direct base class
+ subobject is a constexpr function, and
+ - for each non-static data member of X that is of class type (or array
+ thereof), the assignment operator selected to copy/move that
+ member is a constexpr function. */
+ if (constexpr_p)
+ *constexpr_p = (SFK_CTOR_P (sfk)
+ || (SFK_ASSIGN_P (sfk) && cxx_dialect >= cxx14)
+ || (SFK_DTOR_P (sfk) && cxx_dialect >= cxx20));
+
+ bool expected_trivial = type_has_trivial_fn (ctype, sfk);
+ if (trivial_p)
+ *trivial_p = expected_trivial;
+
+ /* The TYPE_HAS_COMPLEX_* flags tell us about constraints from base
+ class versions and other properties of the type. But a subobject
+ class can be trivially copyable and yet have overload resolution
+ choose a template constructor for initialization, depending on
+ rvalueness and cv-quals. And furthermore, a member in a base might
+ be trivial but deleted or otherwise not callable. So we can't exit
+ early in C++0x. The same considerations apply in C++98/03, but
+ there the definition of triviality does not consider overload
+ resolution, so a constructor can be trivial even if it would otherwise
+ call a non-trivial constructor. */
+ if (expected_trivial
+ && (!(SFK_COPY_P (sfk) || SFK_MOVE_P (sfk)) || cxx_dialect < cxx11))
+ {
+ if (constexpr_p && sfk == sfk_constructor)
+ {
+ bool cx = trivial_default_constructor_is_constexpr (ctype);
+ *constexpr_p = cx;
+ if (diag && !cx && TREE_CODE (ctype) == UNION_TYPE)
+ /* A trivial constructor doesn't have any NSDMI. */
+ inform (input_location, "defaulted default constructor does "
+ "not initialize any non-static data member");
+ }
+ if (!diag && cxx_dialect < cxx11)
+ return;
+ }
+
+ ++cp_unevaluated_operand;
+ ++c_inhibit_evaluation_warnings;
+ push_deferring_access_checks (dk_no_deferred);
+
+ tree scope = push_scope (ctype);
+
+ int flags = LOOKUP_NORMAL | LOOKUP_SPECULATIVE;
+ if (sfk != sfk_inheriting_constructor)
+ flags |= LOOKUP_DEFAULTED;
+
+ tsubst_flags_t complain = diag ? tf_warning_or_error : tf_none;
+ if (diag && spec_p)
+ /* We're in get_defaulted_eh_spec; we don't actually want any walking
+ diagnostics, we just want complain set. */
+ diag = false;
+ int quals = const_p ? TYPE_QUAL_CONST : TYPE_UNQUALIFIED;
+
+ for (binfo = TYPE_BINFO (ctype), i = 0;
+ BINFO_BASE_ITERATE (binfo, i, base_binfo); ++i)
+ {
+ if (!SFK_ASSIGN_P (sfk) && BINFO_VIRTUAL_P (base_binfo))
+ /* We'll handle virtual bases below. */
+ continue;
+
+ tree fn = synthesized_method_base_walk (binfo, base_binfo,
+ sfk, fnname, quals,
+ inheriting_ctor, inherited_parms,
+ flags, diag, spec_p, trivial_p,
+ deleted_p, constexpr_p);
+
+ if (diag && SFK_ASSIGN_P (sfk) && SFK_MOVE_P (sfk)
+ && BINFO_VIRTUAL_P (base_binfo)
+ && fn && TREE_CODE (fn) == FUNCTION_DECL
+ && move_fn_p (fn) && !trivial_fn_p (fn)
+ && vbase_has_user_provided_move_assign (BINFO_TYPE (base_binfo)))
+ warning (OPT_Wvirtual_move_assign,
+ "defaulted move assignment for %qT calls a non-trivial "
+ "move assignment operator for virtual base %qT",
+ ctype, BINFO_TYPE (base_binfo));
+
+ if (check_vdtor && type_has_virtual_destructor (BINFO_TYPE (base_binfo)))
+ {
+ /* Unlike for base ctor/op=/dtor, for operator delete it's fine
+ to have a null fn (no class-specific op delete). */
+ fn = locate_fn_flags (ctype, ovl_op_identifier (false, DELETE_EXPR),
+ ptr_type_node, flags, tf_none);
+ if (fn && fn == error_mark_node)
+ {
+ if (complain & tf_error)
+ locate_fn_flags (ctype, ovl_op_identifier (false, DELETE_EXPR),
+ ptr_type_node, flags, complain);
+ if (deleted_p)
+ *deleted_p = true;
+ }
+ check_vdtor = false;
+ }
+ }
+
+ vec<tree, va_gc> *vbases = CLASSTYPE_VBASECLASSES (ctype);
+ if (SFK_ASSIGN_P (sfk))
+ /* Already examined vbases above. */;
+ else if (vec_safe_is_empty (vbases))
+ /* No virtual bases to worry about. */;
+ else if (ABSTRACT_CLASS_TYPE_P (ctype) && cxx_dialect >= cxx14
+ /* DR 1658 specifies that vbases of abstract classes are
+ ignored for both ctors and dtors. Except DR 2336
+ overrides that skipping when determing the eh-spec of a
+ virtual destructor. */
+ && sfk != sfk_virtual_destructor)
+ /* Vbase cdtors are not relevant. */;
+ else
+ {
+ if (constexpr_p)
+ *constexpr_p = false;
+
+ FOR_EACH_VEC_ELT (*vbases, i, base_binfo)
+ synthesized_method_base_walk (binfo, base_binfo, sfk, fnname, quals,
+ inheriting_ctor, inherited_parms,
+ flags, diag,
+ spec_p, trivial_p, deleted_p, constexpr_p);
+ }
+
+ /* Now handle the non-static data members. */
+ walk_field_subobs (TYPE_FIELDS (ctype), sfk, fnname, quals,
+ spec_p, trivial_p, deleted_p, constexpr_p,
+ diag, flags, complain, /*dtor_from_ctor*/false);
+ if (SFK_CTOR_P (sfk))
+ walk_field_subobs (TYPE_FIELDS (ctype), sfk_destructor,
+ complete_dtor_identifier, TYPE_UNQUALIFIED,
+ NULL, NULL, deleted_p, NULL,
+ false, flags, complain, /*dtor_from_ctor*/true);
+
+ pop_scope (scope);
+
+ pop_deferring_access_checks ();
+ --cp_unevaluated_operand;
+ --c_inhibit_evaluation_warnings;
+}
+
+/* DECL is a defaulted function whose exception specification is now
+ needed. Return what it should be. */
+
+tree
+get_defaulted_eh_spec (tree decl, tsubst_flags_t complain)
+{
+ /* For DECL_MAYBE_DELETED this should already have been handled by
+ synthesize_method. */
+ gcc_assert (!DECL_MAYBE_DELETED (decl));
+
+ if (DECL_CLONED_FUNCTION_P (decl))
+ decl = DECL_CLONED_FUNCTION (decl);
+ special_function_kind sfk = special_function_p (decl);
+ tree ctype = DECL_CONTEXT (decl);
+ tree parms = FUNCTION_FIRST_USER_PARMTYPE (decl);
+ tree parm_type = TREE_VALUE (parms);
+ bool const_p = CP_TYPE_CONST_P (non_reference (parm_type));
+ tree spec = empty_except_spec;
+ bool diag = !DECL_DELETED_FN (decl) && (complain & tf_error);
+ tree inh = DECL_INHERITED_CTOR (decl);
+ if (SFK_DTOR_P (sfk) && DECL_VIRTUAL_P (decl))
+ /* We have to examine virtual bases even if abstract. */
+ sfk = sfk_virtual_destructor;
+ bool pushed = false;
+ if (CLASSTYPE_TEMPLATE_INSTANTIATION (ctype))
+ pushed = push_tinst_level (decl);
+ synthesized_method_walk (ctype, sfk, const_p, &spec, NULL, NULL,
+ NULL, diag, &inh, parms);
+ if (pushed)
+ pop_tinst_level ();
+ return spec;
+}
+
+/* DECL is a deleted function. If it's implicitly deleted, explain why and
+ return true; else return false. */
+
+bool
+maybe_explain_implicit_delete (tree decl)
+{
+ /* If decl is a clone, get the primary variant. */
+ decl = DECL_ORIGIN (decl);
+ gcc_assert (DECL_DELETED_FN (decl));
+ if (DECL_DEFAULTED_FN (decl))
+ {
+ /* Not marked GTY; it doesn't need to be GC'd or written to PCH. */
+ static hash_set<tree> *explained;
+
+ special_function_kind sfk;
+ location_t loc;
+ bool informed;
+ tree ctype;
+
+ if (!explained)
+ explained = new hash_set<tree>;
+ if (explained->add (decl))
+ return true;
+
+ sfk = special_function_p (decl);
+ ctype = DECL_CONTEXT (decl);
+ loc = input_location;
+ input_location = DECL_SOURCE_LOCATION (decl);
+
+ informed = false;
+ if (LAMBDA_TYPE_P (ctype))
+ {
+ informed = true;
+ if (sfk == sfk_constructor)
+ inform (DECL_SOURCE_LOCATION (decl),
+ "a lambda closure type has a deleted default constructor");
+ else if (sfk == sfk_copy_assignment)
+ inform (DECL_SOURCE_LOCATION (decl),
+ "a lambda closure type has a deleted copy assignment operator");
+ else
+ informed = false;
+ }
+ else if (DECL_ARTIFICIAL (decl)
+ && (sfk == sfk_copy_assignment || sfk == sfk_copy_constructor)
+ && classtype_has_move_assign_or_move_ctor_p (ctype, true))
+ {
+ inform (DECL_SOURCE_LOCATION (decl),
+ "%q#D is implicitly declared as deleted because %qT "
+ "declares a move constructor or move assignment operator",
+ decl, ctype);
+ informed = true;
+ }
+ else if (sfk == sfk_inheriting_constructor)
+ {
+ tree binfo = inherited_ctor_binfo (decl);
+ if (TREE_CODE (binfo) != TREE_BINFO)
+ {
+ inform (DECL_SOURCE_LOCATION (decl),
+ "%q#D inherits from multiple base subobjects",
+ decl);
+ informed = true;
+ }
+ }
+ if (!informed && sfk == sfk_comparison)
+ {
+ inform (DECL_SOURCE_LOCATION (decl),
+ "%q#D is implicitly deleted because the default "
+ "definition would be ill-formed:", decl);
+ build_comparison_op (decl, false, tf_warning_or_error);
+ }
+ else if (!informed)
+ {
+ tree parms = FUNCTION_FIRST_USER_PARMTYPE (decl);
+ bool const_p = false;
+ if (parms)
+ {
+ tree parm_type = TREE_VALUE (parms);
+ const_p = CP_TYPE_CONST_P (non_reference (parm_type));
+ }
+ tree raises = NULL_TREE;
+ bool deleted_p = false;
+ tree scope = push_scope (ctype);
+ tree inh = DECL_INHERITED_CTOR (decl);
+
+ synthesized_method_walk (ctype, sfk, const_p,
+ &raises, NULL, &deleted_p, NULL, false,
+ &inh, parms);
+ if (deleted_p)
+ {
+ inform (DECL_SOURCE_LOCATION (decl),
+ "%q#D is implicitly deleted because the default "
+ "definition would be ill-formed:", decl);
+ synthesized_method_walk (ctype, sfk, const_p,
+ NULL, NULL, &deleted_p, NULL, true,
+ &inh, parms);
+ }
+ else if (!comp_except_specs
+ (TYPE_RAISES_EXCEPTIONS (TREE_TYPE (decl)),
+ raises, ce_normal))
+ inform (DECL_SOURCE_LOCATION (decl), "%q#F is implicitly "
+ "deleted because its exception-specification does not "
+ "match the implicit exception-specification %qX",
+ decl, raises);
+ else if (flag_checking)
+ gcc_unreachable ();
+
+ pop_scope (scope);
+ }
+
+ input_location = loc;
+ return true;
+ }
+ return false;
+}
+
+/* DECL is a defaulted function which was declared constexpr. Explain why
+ it can't be constexpr. */
+
+void
+explain_implicit_non_constexpr (tree decl)
+{
+ tree parms = FUNCTION_FIRST_USER_PARMTYPE (decl);
+ bool const_p = CP_TYPE_CONST_P (non_reference (TREE_VALUE (parms)));
+ tree inh = DECL_INHERITED_CTOR (decl);
+ bool dummy;
+ special_function_kind sfk = special_function_p (decl);
+ if (sfk == sfk_comparison)
+ {
+ DECL_DECLARED_CONSTEXPR_P (decl) = true;
+ build_comparison_op (decl, false, tf_warning_or_error);
+ DECL_DECLARED_CONSTEXPR_P (decl) = false;
+ }
+ else
+ synthesized_method_walk (DECL_CLASS_CONTEXT (decl),
+ sfk, const_p,
+ NULL, NULL, NULL, &dummy, true,
+ &inh, parms);
+}
+
+/* DECL is an instantiation of an inheriting constructor template. Deduce
+ the correct exception-specification and deletedness for this particular
+ specialization. Return true if the deduction succeeds; false otherwise. */
+
+bool
+deduce_inheriting_ctor (tree decl)
+{
+ decl = DECL_ORIGIN (decl);
+ gcc_assert (DECL_INHERITED_CTOR (decl));
+ tree spec;
+ bool trivial, constexpr_, deleted;
+ tree inh = DECL_INHERITED_CTOR (decl);
+ synthesized_method_walk (DECL_CONTEXT (decl), sfk_inheriting_constructor,
+ false, &spec, &trivial, &deleted, &constexpr_,
+ /*diag*/false,
+ &inh,
+ FUNCTION_FIRST_USER_PARMTYPE (decl));
+ if (spec == error_mark_node)
+ return false;
+ if (TREE_CODE (inherited_ctor_binfo (decl)) != TREE_BINFO)
+ /* Inherited the same constructor from different base subobjects. */
+ deleted = true;
+ DECL_DELETED_FN (decl) = deleted;
+ TREE_TYPE (decl) = build_exception_variant (TREE_TYPE (decl), spec);
+ SET_DECL_INHERITED_CTOR (decl, inh);
+
+ tree clone;
+ FOR_EACH_CLONE (clone, decl)
+ {
+ DECL_DELETED_FN (clone) = deleted;
+ TREE_TYPE (clone) = build_exception_variant (TREE_TYPE (clone), spec);
+ SET_DECL_INHERITED_CTOR (clone, inh);
+ }
+
+ return true;
+}
+
+/* Implicitly declare the special function indicated by KIND, as a
+ member of TYPE. For copy constructors and assignment operators,
+ CONST_P indicates whether these functions should take a const
+ reference argument or a non-const reference.
+ Returns the FUNCTION_DECL for the implicitly declared function. */
+
+tree
+implicitly_declare_fn (special_function_kind kind, tree type,
+ bool const_p, tree pattern_fn,
+ tree inherited_parms)
+{
+ tree fn;
+ tree parameter_types = void_list_node;
+ tree return_type;
+ tree fn_type;
+ tree raises = empty_except_spec;
+ tree rhs_parm_type = NULL_TREE;
+ tree this_parm;
+ tree name;
+ HOST_WIDE_INT saved_processing_template_decl;
+ bool deleted_p = false;
+ bool constexpr_p = false;
+ tree inherited_ctor = (kind == sfk_inheriting_constructor
+ ? pattern_fn : NULL_TREE);
+
+ /* Because we create declarations for implicitly declared functions
+ lazily, we may be creating the declaration for a member of TYPE
+ while in some completely different context. However, TYPE will
+ never be a dependent class (because we never want to do lookups
+ for implicitly defined functions in a dependent class). */
+ gcc_assert (!dependent_type_p (type));
+
+ /* If the member-specification does not explicitly declare any member or
+ friend named operator==, an == operator function is declared
+ implicitly for each three-way comparison operator function defined as
+ defaulted in the member-specification, with the same access and
+ function-definition and in the same class scope as the respective
+ three-way comparison operator function, except that the return type is
+ replaced with bool and the declarator-id is replaced with
+ operator==.
+
+ [Note: Such an implicitly-declared == operator for a class X is
+ defined as defaulted in the definition of X and has the same
+ parameter-declaration-clause and trailing requires-clause as the
+ respective three-way comparison operator. It is declared with friend,
+ virtual, constexpr, or consteval if the three-way comparison operator
+ function is so declared. If the three-way comparison operator function
+ has no noexcept-specifier, the implicitly-declared == operator
+ function has an implicit exception specification (14.5) that may
+ differ from the implicit exception specification of the three-way
+ comparison operator function. --end note] */
+ if (kind == sfk_comparison)
+ {
+ fn = copy_operator_fn (pattern_fn, EQ_EXPR);
+ DECL_ARTIFICIAL (fn) = 1;
+ TREE_TYPE (fn) = change_return_type (boolean_type_node, TREE_TYPE (fn));
+ return fn;
+ }
+
+ /* Furthermore, we must set PROCESSING_TEMPLATE_DECL to zero here
+ because we only create clones for constructors and destructors
+ when not in a template. */
+ saved_processing_template_decl = processing_template_decl;
+ processing_template_decl = 0;
+
+ type = TYPE_MAIN_VARIANT (type);
+
+ if (targetm.cxx.cdtor_returns_this ())
+ {
+ if (kind == sfk_destructor)
+ /* See comment in check_special_function_return_type. */
+ return_type = build_pointer_type (void_type_node);
+ else
+ return_type = build_pointer_type (type);
+ }
+ else
+ return_type = void_type_node;
+
+ int this_quals = TYPE_UNQUALIFIED;
+ switch (kind)
+ {
+ case sfk_destructor:
+ /* Destructor. */
+ name = dtor_identifier;
+ break;
+
+ case sfk_constructor:
+ /* Default constructor. */
+ name = ctor_identifier;
+ break;
+
+ case sfk_copy_constructor:
+ case sfk_copy_assignment:
+ case sfk_move_constructor:
+ case sfk_move_assignment:
+ case sfk_inheriting_constructor:
+ {
+ if (kind == sfk_copy_assignment
+ || kind == sfk_move_assignment)
+ {
+ return_type = build_reference_type (type);
+ name = assign_op_identifier;
+ }
+ else
+ name = ctor_identifier;
+
+ if (kind == sfk_inheriting_constructor)
+ parameter_types = inherited_parms;
+ else
+ {
+ if (const_p)
+ rhs_parm_type = cp_build_qualified_type (type, TYPE_QUAL_CONST);
+ else
+ rhs_parm_type = type;
+ bool move_p = (kind == sfk_move_assignment
+ || kind == sfk_move_constructor);
+ rhs_parm_type = cp_build_reference_type (rhs_parm_type, move_p);
+
+ parameter_types = tree_cons (NULL_TREE, rhs_parm_type, parameter_types);
+ }
+ break;
+ }
+
+ default:
+ gcc_unreachable ();
+ }
+
+ bool trivial_p = false;
+
+ if (inherited_ctor)
+ {
+ /* For an inheriting constructor, just copy these flags from the
+ inherited constructor until deduce_inheriting_ctor. */
+ raises = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (inherited_ctor));
+ deleted_p = DECL_DELETED_FN (inherited_ctor);
+ constexpr_p = DECL_DECLARED_CONSTEXPR_P (inherited_ctor);
+ }
+ else if (cxx_dialect >= cxx11)
+ {
+ raises = noexcept_deferred_spec;
+ synthesized_method_walk (type, kind, const_p, NULL, &trivial_p,
+ &deleted_p, &constexpr_p, false,
+ &inherited_ctor, inherited_parms);
+ }
+ else
+ synthesized_method_walk (type, kind, const_p, &raises, &trivial_p,
+ &deleted_p, &constexpr_p, false,
+ &inherited_ctor, inherited_parms);
+ /* Don't bother marking a deleted constructor as constexpr. */
+ if (deleted_p)
+ constexpr_p = false;
+ /* A trivial copy/move constructor is also a constexpr constructor,
+ unless the class has virtual bases (7.1.5p4). */
+ else if (trivial_p
+ && cxx_dialect >= cxx11
+ && (kind == sfk_copy_constructor
+ || kind == sfk_move_constructor)
+ && !CLASSTYPE_VBASECLASSES (type))
+ gcc_assert (constexpr_p);
+
+ if (!trivial_p && type_has_trivial_fn (type, kind))
+ type_set_nontrivial_flag (type, kind);
+
+ /* Create the function. */
+ tree this_type = cp_build_qualified_type (type, this_quals);
+ fn_type = build_method_type_directly (this_type, return_type,
+ parameter_types);
+
+ if (raises)
+ {
+ if (raises != error_mark_node)
+ fn_type = build_exception_variant (fn_type, raises);
+ else
+ {
+ /* Can happen, e.g., in C++98 mode for an ill-formed non-static data
+ member initializer (c++/89914). Also, in C++98, we might have
+ failed to deduce RAISES, so try again but complain this time. */
+ if (cxx_dialect < cxx11)
+ synthesized_method_walk (type, kind, const_p, &raises, nullptr,
+ nullptr, nullptr, /*diag=*/true,
+ &inherited_ctor, inherited_parms);
+ /* We should have seen an error at this point. */
+ gcc_assert (seen_error ());
+ }
+ }
+ fn = build_lang_decl (FUNCTION_DECL, name, fn_type);
+ if (kind != sfk_inheriting_constructor)
+ DECL_SOURCE_LOCATION (fn) = DECL_SOURCE_LOCATION (TYPE_NAME (type));
+
+ if (IDENTIFIER_OVL_OP_P (name))
+ {
+ const ovl_op_info_t *op = IDENTIFIER_OVL_OP_INFO (name);
+ DECL_OVERLOADED_OPERATOR_CODE_RAW (fn) = op->ovl_op_code;
+ }
+ else if (IDENTIFIER_CTOR_P (name))
+ DECL_CXX_CONSTRUCTOR_P (fn) = true;
+ else if (IDENTIFIER_DTOR_P (name))
+ DECL_CXX_DESTRUCTOR_P (fn) = true;
+ else
+ gcc_unreachable ();
+
+ SET_DECL_ALIGN (fn, MINIMUM_METHOD_BOUNDARY);
+
+ /* Create the explicit arguments. */
+ if (rhs_parm_type)
+ {
+ /* Note that this parameter is *not* marked DECL_ARTIFICIAL; we
+ want its type to be included in the mangled function
+ name. */
+ tree decl = cp_build_parm_decl (fn, NULL_TREE, rhs_parm_type);
+ TREE_READONLY (decl) = 1;
+ retrofit_lang_decl (decl);
+ DECL_PARM_INDEX (decl) = DECL_PARM_LEVEL (decl) = 1;
+ DECL_ARGUMENTS (fn) = decl;
+ }
+ else if (kind == sfk_inheriting_constructor)
+ {
+ tree *p = &DECL_ARGUMENTS (fn);
+ int index = 1;
+ for (tree parm = inherited_parms; parm && parm != void_list_node;
+ parm = TREE_CHAIN (parm))
+ {
+ *p = cp_build_parm_decl (fn, NULL_TREE, TREE_VALUE (parm));
+ retrofit_lang_decl (*p);
+ DECL_PARM_LEVEL (*p) = 1;
+ DECL_PARM_INDEX (*p) = index++;
+ p = &DECL_CHAIN (*p);
+ }
+ SET_DECL_INHERITED_CTOR (fn, inherited_ctor);
+ DECL_NONCONVERTING_P (fn) = DECL_NONCONVERTING_P (inherited_ctor);
+ /* A constructor so declared has the same access as the corresponding
+ constructor in X. */
+ TREE_PRIVATE (fn) = TREE_PRIVATE (inherited_ctor);
+ TREE_PROTECTED (fn) = TREE_PROTECTED (inherited_ctor);
+ /* Copy constexpr from the inherited constructor even if the
+ inheriting constructor doesn't satisfy the requirements. */
+ constexpr_p = DECL_DECLARED_CONSTEXPR_P (inherited_ctor);
+ }
+
+ /* Add the "this" parameter. */
+ this_parm = build_this_parm (fn, fn_type, this_quals);
+ DECL_CHAIN (this_parm) = DECL_ARGUMENTS (fn);
+ DECL_ARGUMENTS (fn) = this_parm;
+
+ grokclassfn (type, fn, kind == sfk_destructor ? DTOR_FLAG : NO_SPECIAL);
+
+ DECL_IN_AGGR_P (fn) = 1;
+ DECL_ARTIFICIAL (fn) = 1;
+ DECL_DEFAULTED_FN (fn) = 1;
+ if (cxx_dialect >= cxx11)
+ {
+ DECL_DELETED_FN (fn) = deleted_p;
+ DECL_DECLARED_CONSTEXPR_P (fn) = constexpr_p;
+ }
+ DECL_EXTERNAL (fn) = true;
+ DECL_NOT_REALLY_EXTERN (fn) = 1;
+ DECL_DECLARED_INLINE_P (fn) = 1;
+ set_linkage_according_to_type (type, fn);
+ if (TREE_PUBLIC (fn))
+ DECL_COMDAT (fn) = 1;
+ rest_of_decl_compilation (fn, namespace_bindings_p (), at_eof);
+ gcc_assert (!TREE_USED (fn));
+
+ /* Propagate constraints from the inherited constructor. */
+ if (flag_concepts && inherited_ctor)
+ if (tree orig_ci = get_constraints (inherited_ctor))
+ {
+ tree new_ci = copy_node (orig_ci);
+ set_constraints (fn, new_ci);
+ }
+
+ /* Restore PROCESSING_TEMPLATE_DECL. */
+ processing_template_decl = saved_processing_template_decl;
+
+ if (inherited_ctor && TREE_CODE (inherited_ctor) == TEMPLATE_DECL)
+ fn = add_inherited_template_parms (fn, inherited_ctor);
+
+ /* Warn about calling a non-trivial move assignment in a virtual base. */
+ if (kind == sfk_move_assignment && !deleted_p && !trivial_p
+ && CLASSTYPE_VBASECLASSES (type))
+ {
+ location_t loc = input_location;
+ input_location = DECL_SOURCE_LOCATION (fn);
+ synthesized_method_walk (type, kind, const_p,
+ NULL, NULL, NULL, NULL, true,
+ NULL, NULL_TREE);
+ input_location = loc;
+ }
+
+ return fn;
+}
+
+/* Gives any errors about defaulted functions which need to be deferred
+ until the containing class is complete. */
+
+void
+defaulted_late_check (tree fn)
+{
+ /* Complain about invalid signature for defaulted fn. */
+ tree ctx = DECL_CONTEXT (fn);
+ special_function_kind kind = special_function_p (fn);
+
+ if (kind == sfk_comparison)
+ {
+ /* If the function was declared constexpr, check that the definition
+ qualifies. Otherwise we can define the function lazily. */
+ if (DECL_DECLARED_CONSTEXPR_P (fn) && !DECL_INITIAL (fn))
+ {
+ /* Prevent GC. */
+ function_depth++;
+ synthesize_method (fn);
+ function_depth--;
+ }
+ return;
+ }
+
+ bool fn_const_p = (copy_fn_p (fn) == 2);
+ tree implicit_fn = implicitly_declare_fn (kind, ctx, fn_const_p,
+ NULL, NULL);
+ tree eh_spec = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (implicit_fn));
+
+ if (!same_type_p (TREE_TYPE (TREE_TYPE (fn)),
+ TREE_TYPE (TREE_TYPE (implicit_fn)))
+ || !compparms (TYPE_ARG_TYPES (TREE_TYPE (fn)),
+ TYPE_ARG_TYPES (TREE_TYPE (implicit_fn))))
+ {
+ error ("defaulted declaration %q+D does not match the "
+ "expected signature", fn);
+ inform (DECL_SOURCE_LOCATION (fn),
+ "expected signature: %qD", implicit_fn);
+ }
+
+ if (DECL_DELETED_FN (implicit_fn))
+ {
+ DECL_DELETED_FN (fn) = 1;
+ return;
+ }
+
+ /* If a function is explicitly defaulted on its first declaration without an
+ exception-specification, it is implicitly considered to have the same
+ exception-specification as if it had been implicitly declared. */
+ if (!TYPE_RAISES_EXCEPTIONS (TREE_TYPE (fn))
+ && DECL_DEFAULTED_IN_CLASS_P (fn))
+ TREE_TYPE (fn) = build_exception_variant (TREE_TYPE (fn), eh_spec);
+
+ if (DECL_DEFAULTED_IN_CLASS_P (fn)
+ && DECL_DECLARED_CONSTEXPR_P (implicit_fn))
+ {
+ /* Hmm...should we do this for out-of-class too? Should it be OK to
+ add constexpr later like inline, rather than requiring
+ declarations to match? */
+ DECL_DECLARED_CONSTEXPR_P (fn) = true;
+ if (kind == sfk_constructor)
+ TYPE_HAS_CONSTEXPR_CTOR (ctx) = true;
+ }
+
+ if (!DECL_DECLARED_CONSTEXPR_P (implicit_fn)
+ && DECL_DECLARED_CONSTEXPR_P (fn))
+ {
+ if (!CLASSTYPE_TEMPLATE_INSTANTIATION (ctx))
+ {
+ error ("explicitly defaulted function %q+D cannot be declared "
+ "%qs because the implicit declaration is not %qs:", fn,
+ DECL_IMMEDIATE_FUNCTION_P (fn) ? "consteval" : "constexpr",
+ "constexpr");
+ explain_implicit_non_constexpr (fn);
+ }
+ DECL_DECLARED_CONSTEXPR_P (fn) = false;
+ }
+}
+
+/* Returns true iff FN can be explicitly defaulted, and gives any
+ errors if defaulting FN is ill-formed. */
+
+bool
+defaultable_fn_check (tree fn)
+{
+ special_function_kind kind = sfk_none;
+
+ if (template_parm_scope_p ())
+ {
+ error ("a template cannot be defaulted");
+ return false;
+ }
+
+ if (DECL_CONSTRUCTOR_P (fn))
+ {
+ if (FUNCTION_FIRST_USER_PARMTYPE (fn) == void_list_node)
+ kind = sfk_constructor;
+ else if (copy_fn_p (fn) > 0
+ && (TREE_CHAIN (FUNCTION_FIRST_USER_PARMTYPE (fn))
+ == void_list_node))
+ kind = sfk_copy_constructor;
+ else if (move_fn_p (fn))
+ kind = sfk_move_constructor;
+ }
+ else if (DECL_DESTRUCTOR_P (fn))
+ kind = sfk_destructor;
+ else if (DECL_ASSIGNMENT_OPERATOR_P (fn)
+ && DECL_OVERLOADED_OPERATOR_IS (fn, NOP_EXPR))
+ {
+ if (copy_fn_p (fn))
+ kind = sfk_copy_assignment;
+ else if (move_fn_p (fn))
+ kind = sfk_move_assignment;
+ }
+ else if (DECL_OVERLOADED_OPERATOR_CODE_RAW (fn) >= OVL_OP_EQ_EXPR
+ && DECL_OVERLOADED_OPERATOR_CODE_RAW (fn) <= OVL_OP_SPACESHIP_EXPR)
+ {
+ kind = sfk_comparison;
+ if (!early_check_defaulted_comparison (fn))
+ return false;
+ }
+
+ if (kind == sfk_none)
+ {
+ error ("%qD cannot be defaulted", fn);
+ return false;
+ }
+ else
+ {
+ for (tree t = FUNCTION_FIRST_USER_PARMTYPE (fn);
+ t && t != void_list_node; t = TREE_CHAIN (t))
+ if (TREE_PURPOSE (t))
+ {
+ error ("defaulted function %q+D with default argument", fn);
+ break;
+ }
+
+ /* Avoid do_warn_unused_parameter warnings. */
+ for (tree p = FUNCTION_FIRST_USER_PARM (fn); p; p = DECL_CHAIN (p))
+ if (DECL_NAME (p))
+ suppress_warning (p, OPT_Wunused_parameter);
+
+ if (current_class_type && TYPE_BEING_DEFINED (current_class_type))
+ /* Defer checking. */;
+ else if (!processing_template_decl)
+ defaulted_late_check (fn);
+
+ return true;
+ }
+}
+
+/* Add an implicit declaration to TYPE for the kind of function
+ indicated by SFK. Return the FUNCTION_DECL for the new implicit
+ declaration. */
+
+tree
+lazily_declare_fn (special_function_kind sfk, tree type)
+{
+ tree fn;
+ /* Whether or not the argument has a const reference type. */
+ bool const_p = false;
+
+ type = TYPE_MAIN_VARIANT (type);
+
+ switch (sfk)
+ {
+ case sfk_constructor:
+ CLASSTYPE_LAZY_DEFAULT_CTOR (type) = 0;
+ break;
+ case sfk_copy_constructor:
+ const_p = TYPE_HAS_CONST_COPY_CTOR (type);
+ CLASSTYPE_LAZY_COPY_CTOR (type) = 0;
+ break;
+ case sfk_move_constructor:
+ CLASSTYPE_LAZY_MOVE_CTOR (type) = 0;
+ break;
+ case sfk_copy_assignment:
+ const_p = TYPE_HAS_CONST_COPY_ASSIGN (type);
+ CLASSTYPE_LAZY_COPY_ASSIGN (type) = 0;
+ break;
+ case sfk_move_assignment:
+ CLASSTYPE_LAZY_MOVE_ASSIGN (type) = 0;
+ break;
+ case sfk_destructor:
+ CLASSTYPE_LAZY_DESTRUCTOR (type) = 0;
+ break;
+ default:
+ gcc_unreachable ();
+ }
+
+ /* Declare the function. */
+ fn = implicitly_declare_fn (sfk, type, const_p, NULL, NULL);
+
+ /* [class.copy]/8 If the class definition declares a move constructor or
+ move assignment operator, the implicitly declared copy constructor is
+ defined as deleted.... */
+ if ((sfk == sfk_copy_assignment || sfk == sfk_copy_constructor)
+ && cxx_dialect >= cxx11)
+ {
+ if (classtype_has_move_assign_or_move_ctor_p (type, true))
+ DECL_DELETED_FN (fn) = true;
+ else if (classtype_has_depr_implicit_copy (type))
+ /* The implicit definition of a copy constructor as defaulted is
+ deprecated if the class has a user-declared copy assignment operator
+ or a user-declared destructor. The implicit definition of a copy
+ assignment operator as defaulted is deprecated if the class has a
+ user-declared copy constructor or a user-declared destructor (15.4,
+ 15.8). */
+ TREE_DEPRECATED (fn) = true;
+ }
+
+ /* Destructors and assignment operators may be virtual. */
+ if (sfk == sfk_destructor
+ || sfk == sfk_move_assignment
+ || sfk == sfk_copy_assignment)
+ check_for_override (fn, type);
+
+ /* Add it to the class */
+ bool added = add_method (type, fn, false);
+ gcc_assert (added || errorcount);
+
+ /* Add it to TYPE_FIELDS. */
+ if (sfk == sfk_destructor
+ && DECL_VIRTUAL_P (fn))
+ /* The ABI requires that a virtual destructor go at the end of the
+ vtable. */
+ TYPE_FIELDS (type) = chainon (TYPE_FIELDS (type), fn);
+ else
+ {
+ DECL_CHAIN (fn) = TYPE_FIELDS (type);
+ TYPE_FIELDS (type) = fn;
+ }
+ /* Propagate TYPE_FIELDS. */
+ fixup_type_variants (type);
+
+ maybe_add_class_template_decl_list (type, fn, /*friend_p=*/0);
+ if (DECL_MAYBE_IN_CHARGE_CDTOR_P (fn))
+ /* Create appropriate clones. */
+ clone_cdtor (fn, /*update_methods=*/true);
+
+ return fn;
+}
+
+/* Given a FUNCTION_DECL FN and a chain LIST, skip as many elements of LIST
+ as there are artificial parms in FN. */
+
+tree
+skip_artificial_parms_for (const_tree fn, tree list)
+{
+ if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn))
+ list = TREE_CHAIN (list);
+ else
+ return list;
+
+ if (DECL_HAS_IN_CHARGE_PARM_P (fn))
+ list = TREE_CHAIN (list);
+ if (DECL_HAS_VTT_PARM_P (fn))
+ list = TREE_CHAIN (list);
+ return list;
+}
+
+/* Given a FUNCTION_DECL FN and a chain LIST, return the number of
+ artificial parms in FN. */
+
+int
+num_artificial_parms_for (const_tree fn)
+{
+ int count = 0;
+
+ if (DECL_NONSTATIC_MEMBER_FUNCTION_P (fn))
+ count++;
+ else
+ return 0;
+
+ if (DECL_HAS_IN_CHARGE_PARM_P (fn))
+ count++;
+ if (DECL_HAS_VTT_PARM_P (fn))
+ count++;
+ return count;
+}
+
+
+#include "gt-cp-method.h"
generated by cgit v1.1 at 2024-10-05 10:16:32 +0000