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2022-01-17Rename .c files to .cc files.Martin Liska1-33147/+0
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... * 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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.
2022-01-03Update copyright years.Jakub Jelinek1-1/+1
2021-12-08dwarf: Multi-register CFI address support.Andrew Stubbs1-5/+49
Add support for architectures such as AMD GCN, in which the pointer size is larger than the register size. This allows the CFI information to include multi-register locations for the stack pointer, frame pointer, and return address. This patch was originally posted by Andrew Stubbs in https://gcc.gnu.org/pipermail/gcc-patches/2020-August/552873.html It has now been re-worked according to the review comments. It does not use DW_OP_piece or DW_OP_LLVM_piece_end. Instead it uses DW_OP_bregx/DW_OP_shl/DW_OP_bregx/DW_OP_plus to build the CFA from multiple consecutive registers. Here is how .debug_frame looks before and after this patch: $ cat factorial.c int factorial(int n) { if (n == 0) return 1; return n * factorial (n - 1); } $ amdgcn-amdhsa-gcc -g factorial.c -O0 -c -o fac.o $ llvm-dwarfdump -debug-frame fac.o *** without this patch (edited for brevity)*** 00000000 00000014 ffffffff CIE DW_CFA_def_cfa: reg48 +0 DW_CFA_register: reg16 reg50 00000018 0000002c 00000000 FDE cie=00000000 pc=00000000...000001ac DW_CFA_advance_loc4: 96 DW_CFA_offset: reg46 0 DW_CFA_offset: reg47 4 DW_CFA_offset: reg50 8 DW_CFA_offset: reg51 12 DW_CFA_offset: reg16 8 DW_CFA_advance_loc4: 4 DW_CFA_def_cfa_sf: reg46 -16 *** with this patch (edited for brevity)*** 00000000 00000024 ffffffff CIE DW_CFA_def_cfa_expression: DW_OP_bregx SGPR49+0, DW_OP_const1u 0x20, DW_OP_shl, DW_OP_bregx SGPR48+0, DW_OP_plus DW_CFA_expression: reg16 DW_OP_bregx SGPR51+0, DW_OP_const1u 0x20, DW_OP_shl, DW_OP_bregx SGPR50+0, DW_OP_plus 00000028 0000003c 00000000 FDE cie=00000000 pc=00000000...000001ac DW_CFA_advance_loc4: 96 DW_CFA_offset: reg46 0 DW_CFA_offset: reg47 4 DW_CFA_offset: reg50 8 DW_CFA_offset: reg51 12 DW_CFA_offset: reg16 8 DW_CFA_advance_loc4: 4 DW_CFA_def_cfa_expression: DW_OP_bregx SGPR47+0, DW_OP_const1u 0x20, DW_OP_shl, DW_OP_bregx SGPR46+0, DW_OP_plus, DW_OP_lit16, DW_OP_minus gcc/ChangeLog: * dwarf2cfi.c (dw_stack_pointer_regnum): Change type to struct cfa_reg. (dw_frame_pointer_regnum): Likewise. (new_cfi_row): Use set_by_dwreg. (get_cfa_from_loc_descr): Use set_by_dwreg. Support register spans. handle DW_OP_bregx with DW_OP_breg{0-31}. Support DW_OP_lit*, DW_OP_const*, DW_OP_minus, DW_OP_shl and DW_OP_plus. (lookup_cfa_1): Use set_by_dwreg. (def_cfa_0): Update for cfa_reg and support register spans. (reg_save): Change sreg parameter to struct cfa_reg. Support register spans. (dwf_cfa_reg): New function. (dwarf2out_flush_queued_reg_saves): Use dwf_cfa_reg instead of dwf_regno. (dwarf2out_frame_debug_def_cfa): Likewise. (dwarf2out_frame_debug_adjust_cfa): Likewise. (dwarf2out_frame_debug_cfa_offset): Likewise. Update reg_save usage. (dwarf2out_frame_debug_cfa_register): Likewise. (dwarf2out_frame_debug_expr): Likewise. (create_pseudo_cfg): Use set_by_dwreg. (initial_return_save): Use set_by_dwreg and dwf_cfa_reg, (create_cie_data): Use dwf_cfa_reg. (execute_dwarf2_frame): Use dwf_cfa_reg. (dump_cfi_row): Use set_by_dwreg. * dwarf2out.c (build_span_loc, build_breg_loc): New function. (build_cfa_loc): Support register spans. (build_cfa_aligned_loc): Update cfa_reg usage. (convert_cfa_to_fb_loc_list): Use set_by_dwreg. * dwarf2out.h (struct cfa_reg): New type. (struct dw_cfa_location): Use struct cfa_reg. (build_span_loc): New prototype. co-authored-By: Hafiz Abid Qadeer <abidh@codesourcery.com>
2021-12-01simplify-rtx: Punt on simplify_associative_operation with large operands ↵Jakub Jelinek1-0/+9
[PR102356] Seems simplify_associate_operation is quadratic, which isn't a big deal for use during combine and other similar RTL passes, because those never try to combine expressions from more than a few instructions and because those instructions need to be recognized the machine description also bounds how many expressions can appear in there. var-tracking has depth limits only for some cases and unlimited depth for the vt_expand_loc though: /* This is the value used during expansion of locations. We want it to be unbounded, so that variables expanded deep in a recursion nest are fully evaluated, so that their values are cached correctly. We avoid recursion cycles through other means, and we don't unshare RTL, so excess complexity is not a problem. */ #define EXPR_DEPTH (INT_MAX) /* We use this to keep too-complex expressions from being emitted as location notes, and then to debug information. Users can trade compile time for ridiculously complex expressions, although they're seldom useful, and they may often have to be discarded as not representable anyway. */ #define EXPR_USE_DEPTH (param_max_vartrack_expr_depth) IMO for very large expressions it isn't worth trying to reassociate though, in fact e.g. for the new testcase below keeping it as is has bigger chance of generating smaller debug info which the dwarf2out.c part of the change tries to achieve - if a binary operation has the same operands, we can use DW_OP_dup and not bother computing the possibly large operand again. The patch fixes it by adding a counter to simplify_context and counting how many times simplify_associative_operation has been called during a single outermost simplify_* call, and once it reaches some maximum (currently 64), it stops reassociating. Another possibility to deal with the power expressions in debug info would be to introduce some new RTL operation for the pow{,i} (x, n) case, allow that solely in debug insns and expand those into DWARF using a loop. But that seems like quite a lot of work for something rarely used (especially when powi for larger n is only useful for 0 and 1 inputs because anything else overflows). 2021-12-01 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/102356 * rtl.h (simplify_context): Add assoc_count member and max_assoc_count static member. * simplify-rtx.c (simplify_associative_operation): Don't reassociate more than max_assoc_count times within one outermost simplify_* call. * dwarf2out.c (mem_loc_descriptor): Optimize binary operation with both operands the same using DW_OP_dup. * gcc.dg/pr102356.c: New test.
2021-11-29Remove unreachable returnsRichard Biener1-3/+0
This removes unreachable return statements as diagnosed by the -Wunreachable-code patch. Some cases are more obviously an improvement than others - in fact some may get you the idea to replace them with gcc_unreachable () instead, leading to cases of the 'Remove unreachable gcc_unreachable () at the end of functions' patch. 2021-11-25 Richard Biener <rguenther@suse.de> * vec.c (qsort_chk): Do not return the void return value from the noreturn qsort_chk_error. * ccmp.c (expand_ccmp_expr_1): Remove unreachable return. * df-scan.c (df_ref_equal_p): Likewise. * dwarf2out.c (is_base_type): Likewise. (add_const_value_attribute): Likewise. * fixed-value.c (fixed_arithmetic): Likewise. * gimple-fold.c (gimple_fold_builtin_fputs): Likewise. * gimple-ssa-strength-reduction.c (stmt_cost): Likewise. * graphite-isl-ast-to-gimple.c (gcc_expression_from_isl_expr_op): Likewise. (gcc_expression_from_isl_expression): Likewise. * ipa-fnsummary.c (will_be_nonconstant_expr_predicate): Likewise. * lto-streamer-in.c (lto_input_mode_table): Likewise. gcc/c-family/ * c-opts.c (c_common_post_options): Remove unreachable return. * c-pragma.c (handle_pragma_target): Likewise. (handle_pragma_optimize): Likewise. gcc/c/ * c-typeck.c (c_tree_equal): Remove unreachable return. * c-parser.c (get_matching_symbol): Likewise. libgomp/ * oacc-plugin.c (GOMP_PLUGIN_acc_default_dim): Remove unreachable return.
2021-11-11dwarf2out: Fix up field_byte_offset [PR101378]Jakub Jelinek1-0/+1
For PCC_BITFIELD_TYPE_MATTERS field_byte_offset has quite large code to deal with it since many years ago (see it e.g. in GCC 3.2, although it used to be on HOST_WIDE_INTs, then on double_ints, now on offset_ints). But that code apparently isn't able to cope with members with empty class types with [[no_unique_address]] attribute, because the empty classes have non-zero type size but zero decl size and so one can end up from the computation with negative offset or offset 1 byte smaller than it should be. For !PCC_BITFIELD_TYPE_MATTERS, we just use tree_result = byte_position (decl); which seems exactly right even for the empty classes or anything which is not a bitfield (and for which we don't add DW_AT_bit_offset attribute). So, instead of trying to handle those no_unique_address members in the current already very complicated code, this limits it to bitfields. stor-layout.c PCC_BITFIELD_TYPE_MATTERS handling also affects only bitfields, twice it checks DECL_BIT_FIELD and once DECL_BIT_FIELD_TYPE. As discussed, this patch uses DECL_BIT_FIELD_TYPE check, because DECL_BIT_FIELD might be cleared for some bitfields with bitsizes multiple of BITS_PER_UNIT and e.g. struct S { int e; int a : 1, b : 7, c : 8, d : 16; } s; struct T { int a : 1, b : 7; long long c : 8; int d : 16; } t; int main () { s.c = 0x55; s.d = 0xaaaa; t.c = 0x55; t.d = 0xaaaa; s.e++; } has different debug info with DECL_BIT_FIELD check. 2021-11-11 Jakub Jelinek <jakub@redhat.com> PR debug/101378 * dwarf2out.c (field_byte_offset): Do the PCC_BITFIELD_TYPE_MATTERS handling only for DECL_BIT_FIELD_TYPE decls. * g++.dg/debug/dwarf2/pr101378.C: New test.
2021-11-05dwarf2out: Fix up CONST_WIDE_INT handling once more [PR103046]Jakub Jelinek1-15/+17
My last change to CONST_WIDE_INT handling in add_const_value_attribute broke handling of CONST_WIDE_INT constants like ((__uint128_t) 1 << 120). wi::min_precision (w1, UNSIGNED) in that case 121, but wide_int::from creates a wide_int that has 0 and 0xff00000000000000ULL in its elts and precision 121. When we output that, we output both elements and thus emit 0, 0xff00000000000000 instead of the desired 0, 0x0100000000000000. IMHO we should actually pass machine_mode to add_const_value_attribute from callers, so that we know exactly what precision we want. Because hypothetically, if say mode is OImode and the CONST_WIDE_INT value fits into 128 bits or 192 bits, we'd emit just those 128 or 192 bits but debug info users would expect 256 bits. On typedef unsigned __int128 U; int main () { U a = (U) 1 << 120; U b = 0xffffffffffffffffULL; U c = ((U) 0xffffffff00000000ULL) << 64; return 0; } vanilla gcc incorrectly emits 0, 0xff00000000000000 for a, 0xffffffffffffffff alone (DW_FORM_data8) for b and 0, 0xffffffff00000000 for c. gcc with the previously posted PR103046 patch emits 0, 0x0100000000000000 for a, 0xffffffffffffffff alone for b and 0, 0xffffffff00000000 for c. And with this patch we emit 0, 0x0100000000000000 for a, 0xffffffffffffffff, 0 for b and 0, 0xffffffff00000000 for c. So, the patch below certainly causes larger debug info (well, 128-bit integers are pretty rare), but in this case the question is if it isn't more correct, as debug info consumers generally will not know if they should sign or zero extend the value in DW_AT_const_value. The previous code assumes they will always zero extend it... 2021-11-05 Jakub Jelinek <jakub@redhat.com> PR debug/103046 * dwarf2out.c (add_const_value_attribute): Add MODE argument, use it in CONST_WIDE_INT handling. Adjust recursive calls. (add_location_or_const_value_attribute): Pass DECL_MODE (decl) to new add_const_value_attribute argument. (tree_add_const_value_attribute): Pass TYPE_MODE (type) to new add_const_value_attribute argument.
2021-10-07Introduce smul_highpart and umul_highpart RTX for high-part multiplicationsRoger Sayle1-0/+2
This patch introduces new RTX codes to allow the RTL passes and backends to consistently represent high-part multiplications. Currently, the RTL used by different backends for expanding smul<mode>3_highpart and umul<mode>3_highpart varies greatly, with many but not all choosing to express this something like: (define_insn "smuldi3_highpart" [(set (match_operand:DI 0 "nvptx_register_operand" "=R") (truncate:DI (lshiftrt:TI (mult:TI (sign_extend:TI (match_operand:DI 1 "nvptx_register_operand" "R")) (sign_extend:TI (match_operand:DI 2 "nvptx_register_operand" "R"))) (const_int 64))))] "" "%.\\tmul.hi.s64\\t%0, %1, %2;") One complication with using this "widening multiplication" representation is that it requires an intermediate in a wider mode, making it difficult or impossible to encode a high-part multiplication of the widest supported integer mode. A second is that it can interfere with optimization; for example simplify-rtx.c contains the comment: case TRUNCATE: /* Don't optimize (lshiftrt (mult ...)) as it would interfere with the umulXi3_highpart patterns. */ Hopefully these problems are solved (or reduced) by introducing a new canonical form for high-part multiplications in RTL passes. This also simplifies insn patterns when one operand is constant. Whilst implementing some constant folding simplifications and compile-time evaluation of these new RTX codes, I noticed that this functionality could also be added for the existing saturating arithmetic RTX codes. Then likewise when documenting these new RTX codes, I also took the opportunity to silence the @xref warnings in invoke.texi. 2021-10-07 Roger Sayle <roger@nextmovesoftware.com> gcc/ChangeLog * rtl.def (SMUL_HIGHPART, UMUL_HIGHPART): New RTX codes for representing signed and unsigned high-part multiplication resp. * simplify-rtx.c (simplify_binary_operation_1) [SMUL_HIGHPART, UMUL_HIGHPART]: Simplify high-part multiplications by zero. [SS_PLUS, US_PLUS, SS_MINUS, US_MINUS, SS_MULT, US_MULT, SS_DIV, US_DIV]: Similar simplifications for saturating arithmetic. (simplify_const_binary_operation) [SS_PLUS, US_PLUS, SS_MINUS, US_MINUS, SS_MULT, US_MULT, SMUL_HIGHPART, UMUL_HIGHPART]: Implement compile-time evaluation for constant operands. * dwarf2out.c (mem_loc_descriptor): Skip SMUL_HIGHPART and UMUL_HIGHPART. * doc/rtl.texi (smul_highpart, umul_highpart): Document RTX codes. * doc/md.texi (smul@var{m}3_highpart, umul@var{m3}_highpart): Mention the new smul_highpart and umul_highpart RTX codes. * doc/invoke.texi: Silence @xref "compilation" warnings. gcc/testsuite/ChangeLog * gcc.target/i386/sse2-mmx-paddsb-2.c: New test case. * gcc.target/i386/sse2-mmx-paddusb-2.c: New test case. * gcc.target/i386/sse2-mmx-psubsb-2.c: New test case. * gcc.target/i386/sse2-mmx-psubusb-2.c: New test case.
2021-09-07dwarf: externalize lookup_type_dieDavid Faust1-2/+1
Expose the function lookup_type_die in dwarf2out, so that it can be used by CTF/BTF when adding BPF CO-RE information. The function is now non-static, and an extern prototype is added in dwarf2out.h. gcc/ChangeLog: * dwarf2out.c (lookup_type_die): Function is no longer static. * dwarf2out.h: Expose it here.
2021-09-07dwarf2out: Emit BTF in dwarf2out_finish for BPF CO-RE usecaseIndu Bhagat1-2/+7
DWARF generation is split between early and late phases when LTO is in effect. This poses challenges for CTF/BTF generation especially if late debug info generation is desirable, as turns out to be the case for BPF CO-RE. The approach taken here in this patch is: 1. LTO is disabled for BPF CO-RE The reason to disable LTO for BPF CO-RE is that if LTO is in effect, BPF CO-RE relocations need to be generated in the LTO link phase _after_ the optimizations are done. This means we need to devise way to combine early and late BTF. At this time, in absence of linker support for BTF sections, it makes sense to steer clear of LTO for BPF CO-RE and bypass the issue. 2. The BPF backend updates the write_symbols with BPF_WITH_CORE_DEBUG to convey the case that BTF with CO-RE support needs to be generated. This information is used by the debug info emission routines to defer the emission of BTF/CO-RE until dwarf2out_finish. So, in other words, dwarf2out_early_finish - Always emit CTF here. - if (BTF && !BTF_WITH_CORE), emit BTF now. dwarf2out_finish - if (BTF_WITH_CORE) emit BTF now. gcc/ChangeLog: * dwarf2ctf.c (ctf_debug_finalize): Make it static. (ctf_debug_early_finish): New definition. (ctf_debug_finish): Likewise. * dwarf2ctf.h (ctf_debug_finalize): Remove declaration. (ctf_debug_early_finish): New declaration. (ctf_debug_finish): Likewise. * dwarf2out.c (dwarf2out_finish): Invoke ctf_debug_finish. (dwarf2out_early_finish): Invoke ctf_debug_early_finish.
2021-09-07Fix PR debug/101947Eric Botcazou1-8/+44
This is the recent LTO bootstrap failure with Ada enabled. The compiler now generates DW_OP_deref_type for a unit of the Ada front-end, which means that the offset of base types in the CU must be computed during early DWARF too. gcc/ PR debug/101947 * dwarf2out.c (mark_base_types): New overloaded function. (dwarf2out_early_finish): Invoke it on the COMDAT type list as well as the compilation unit, and call move_marked_base_types afterward.
2021-09-06Fix debug info for packed array types in AdaEric Botcazou1-8/+14
Packed array types are sometimes represented with integer types under the hood in Ada, but we nevertheless need to emit them as array types in the debug info so we have the types.get_array_descr_info langhook for this purpose; but it is not invoked from modified_type_die, which causes: FAIL: gdb.ada/arrayptr.exp: scenario=minimal: print pa_ptr.all FAIL: gdb.ada/arrayptr.exp: scenario=minimal: print pa_ptr.all(3) in the GDB testsuite. gcc/ * dwarf2out.c (modified_type_die): Deal with all array types earlier and use local variable consistently throughout the function.
2021-08-23dwarf2out: Emit DW_AT_location for global register vars during early dwarf ↵Jakub Jelinek1-1/+20
[PR101905] The following patch emits DW_AT_location for global register variables already during early dwarf, since usually late_global_decl hook isn't even called for those, as nothing needs to be emitted for them. 2021-08-23 Jakub Jelinek <jakub@redhat.com> PR debug/101905 * dwarf2out.c (gen_variable_die): Add DW_AT_location for global register variables already during early_dwarf if possible. * gcc.dg/guality/pr101905.c: New test.
2021-08-16Fix regression in debug info for Ada with DWARF 5Eric Botcazou1-0/+1
add_scalar_info can directly generate a reference to an existing DIE for a scalar attribute, e.g the upper bound of a VLA, but it does so only if this existing DIE has a location or is a constant: if (get_AT (decl_die, DW_AT_location) || get_AT (decl_die, DW_AT_data_member_location) || get_AT (decl_die, DW_AT_const_value)) Now, in DWARF 5, members of a structure that are bitfields no longer have a DW_AT_data_member_location but a DW_AT_data_bit_offset attribute instead, so the condition is bypassed. gcc/ * dwarf2out.c (add_scalar_info): Deal with DW_AT_data_bit_offset.
2021-08-16Disable GNAT encodings by defaultEric Botcazou1-17/+15
Given the latest work in the compiler and debugger, we no longer need to use most GNAT-specific encodings in the debug info generated for an Ada program, so the attached patch disables them, except with -fgnat-encodings=all. gcc/ * dwarf2out.c (add_data_member_location_attribute): Use GNAT encodings only when -fgnat-encodings=all is specified. (add_bound_info): Likewise. (add_byte_size_attribute): Likewise. (gen_member_die): Likewise.
2021-08-04Fix debug info for ignored decls at start of assemblyBernd Edlinger1-0/+11
Ignored functions decls that are compiled at the start of the assembly have bogus line numbers until the first .file directive, as reported in PR101575. The corresponding binutils bug report is https://sourceware.org/bugzilla/show_bug.cgi?id=28149 The work around for this issue is to emit a dummy .file directive before the first function is compiled, unless another .file directive was already emitted previously. 2021-08-04 Bernd Edlinger <bernd.edlinger@hotmail.de> PR ada/101575 * dwarf2out.c (dwarf2out_assembly_start): Emit a dummy .file statement when needed.
2021-07-20debug/101473 - apply debug prefix maps before checksumming DIEsRichard Biener1-6/+6
The following makes sure to apply the debug prefix maps to filenames before checksumming DIEs to create the global symbol for the CU DIE used by LTO to link the late debug to the early debug. This avoids binary differences (in said symbol) when compiling with toolchains installed under a different path and that compensated with appropriate -fdebug-prefix-map options. The easiest and most scalable way is to record both the unmapped and the remapped filename in the dwarf_file_data so the remapping process takes place at a single point and only once (otherwise it creates GC garbage at each point doing that). 2021-07-20 Richard Biener <rguenther@suse.de> PR debug/101473 * dwarf2out.h (dwarf_file_data): Add key member. * dwarf2out.c (dwarf_file_hasher::equal): Compare key. (dwarf_file_hasher::hash): Hash key. (lookup_filename): Remap the filename and store it in the filename member of dwarf_file_data when creating a new dwarf_file_data. (file_name_acquire): Do not remap the filename again. (maybe_emit_file): Likewise.
2021-07-01dwarf2out: Handle COMPOUND_LITERAL_EXPR in loc_list_from_tree_1 [PR101266]Jakub Jelinek1-0/+4
In this case dwarf2out_decl is called from the FEs with GENERIC but not yet gimplified expressions in it. As loc_list_from_tree_1 has an exhaustive list of tree codes it wants to handle and for checking asserts no other codes makes it in, we should handle even GENERIC trees that shouldn't be valid in GIMPLE. The following patch handles COMPOUND_LITERAL_EXPR by hnadling it like the underlying VAR_DECL temporary. Verified the emitted DWARF is correct (but unoptimized, we emit DW_OP_lit1 DW_OP_lit1 DW_OP_minus for the upper bound). 2021-07-01 Jakub Jelinek <jakub@redhat.com> PR debug/101266 * dwarf2out.c (loc_list_from_tree_1): Handle COMPOUND_LITERAL_EXPR. * gcc.dg/pr101266.c: New test.
2021-06-28CTF/BTF debug formatsIndu Bhagat1-1/+36
This commit introduces support for generating CTF debugging information and BTF debugging information from GCC. 2021-06-28 Indu Bhagat <indu.bhagat@oracle.com> David Faust <david.faust@oracle.com> Jose E. Marchesi <jose.marchesi@oracle.com> Weimin Pan <weimin.pan@oracle.com> gcc/ * Makefile.in: Add ctfc.*, ctfout.c and btfout.c files to GTFILES. Add new object files. * common.opt: Add CTF and BTF debug info options. * btfout.c: New file. * ctfc.c: Likewise. * ctfc.h: Likewise. * ctfout.c: Likewise. * dwarf2ctf.c: Likewise. * dwarf2ctf.h: Likewise. * dwarf2cfi.c (dwarf2out_do_frame): Acknowledge CTF_DEBUG and BTF_DEBUG. * dwarf2out.c (dwarf2out_source_line): Likewise. (dwarf2out_finish): Skip emitting DWARF if CTF or BTF are to be generated. (debug_format_do_cu): New function. (dwarf2out_early_finish): Traverse DIEs and emit CTF/BTF for them if requested. Include dwarf2ctf.c. * final.c (dwarf2_debug_info_emitted_p): Acknowledge DWARF-based debug formats. * flag-types.h (enum debug_info_type): Add CTF_DEBUG and BTF_DEBUG. (CTF_DEBUG): New bitmask. (BTF_DEBUG): Likewise. (enum ctf_debug_info_levels): New enum. * gengtype.c (open_base_files): Handle ctfc.h. (main): Handle uint32_t type. * flags.h (btf_debuginfo_p): New definition. (dwarf_based_debuginfo_p): Likewise. * opts.c (debug_type_names): Add entries for CTF and BTF. (btf_debuginfo_p): New function. (dwarf_based_debuginfo_p): Likewise. (common_handle_option): Handle -gctfN and -gbtf options. (set_debug_level): Set CTF_DEBUG, BTF_DEBUG whenever appropriate. * toplev.c (process_options): Inform the user and ignore -gctfLEVEL if frontend is not C. include/ * ctf.h: New file. * btf.h: Likewise. libiberty/ * simple-object.c (handle_lto_debug_sections): Copy over .ctf sections.
2021-06-28dwarf: externalize some DWARF internals for needs of CTF/BTFIndu Bhagat1-43/+38
This patch externalizes some internal DIE structures and their attributes for the use of DWARF-based debug formats like CTF and BTF. The following functions which were previously defined as static in dwarf2out.c are now non-static, and extern prototypes for them have been added to dwarf2out.h: - get_AT - AT_int - AT_class - AT_loc - get_AT_ref - get_AT_string - get_AT_class - AT_unsigned - get_AT_unsigned - get_AT_flag - add_name_attribute - new_die_raw - base_type_die - lookup_decl_die - get_AT_file Note how this patch doens't change the names of these functions to avoid a massive renaming in dwarf2out.c, but in the future we probably want these functions to sport a dw_* prefix. Also, some type definitions have been moved from dwarf2out.c to dwarf2out.h: - dw_attr_node - struct dwarf_file_data Finally, three new accessor functions have been added to dwarf2out.c with prototypes in dwarf2out.h: - dw_get_die_child - dw_get_die_sib - dw_get_die_tag 2021-06-28 Jose E. Marchesi <jose.marchesi@oracle.com> * dwarf2out.c (AT_class): Function is no longer static. (AT_int): Likewise. (AT_unsigned): Likewise. (AT_loc): Likewise. (get_AT): Likewise. (get_AT_string): Likewise. (get_AT_flag): Likewise. (get_AT_unsigned): Likewise. (get_AT_ref): Likewise. (new_die_raw): Likewise. (lookup_decl_die): Likewise. (base_type_die): Likewise. (add_name_attribute): Likewise. (add_AT_int): Likewise. (add_AT_unsigned): Likewise. (add_AT_loc): Likewise. (dw_get_die_tag): New function. (dw_get_die_child): Likewise. (dw_get_die_sib): Likewise. (struct dwarf_file_data): Move from here to dwarf2out.h (struct dw_attr_struct): Likewise. * dwarf2out.h: Analogous changes.
2021-06-24Emit .file 0 directive earlier in DWARF 5Eric Botcazou1-21/+24
When the assembler supports it, the compiler automatically passes --gdwarf-5 to it, which has an interesting side effect: any assembly instruction prior to the first .file directive defines a new line associated with .file 0 in the .debug_line section and of course the numbering of these implicit lines has nothing to do with that of the source code. This can be problematic in Ada when we do not generate .file/.loc directives for compiled-generated functions to avoid too jumpy a debugging experience. gcc/ * dwarf2out.c (dwarf2out_assembly_start): Emit .file 0 marker here.. (dwarf2out_finish): ...instead of here.
2021-06-03Also generate DW_OP_GNU_variable_value at file scopeEric Botcazou1-42/+28
But only for the reference variant (dw_val_class_die_ref). This is needed for variable-sized types declared at library level in Ada. gcc/ * dwarf2out.c (loc_list_from_tree_1) <FUNCTION_DECL>: Also generate DW_OP_GNU_variable_value referencing an existing DIE at file scope. (type_byte_size): Inline into... (add_byte_size_attribute): ...this and call add_scalar_info.
2021-06-03Fix signedness issue in DWARF functions (2)Eric Botcazou1-4/+88
The compiler can synthesize DWARF functions to describe the location and size of components in discriminated record types with variant part in Ada, but in peculiar cases the compiler drops expressions on the floor, for example in the divide case: case ROUND_DIV_EXPR: case TRUNC_DIV_EXPR: case EXACT_DIV_EXPR: if (TYPE_UNSIGNED (TREE_TYPE (loc))) return 0; op = DW_OP_div; goto do_binop; Now sizetype and bitsizetype are unsigned types, which means that any divide expression in them is dropped. gcc/ * dwarf2out.c (mem_loc_descriptor) <UDIV>: Fix typo. (typed_binop_from_tree): New function. (loc_list_from_tree_1) <EXACT_DIV_EXPR>: For an unsigned type, turn a divide by a power of 2 into a shift. <CEIL_DIV_EXPR>: For an unsigned type, use a signed divide if the size of the mode is lower than DWARF2_ADDR_SIZE; otherwise, do a typed divide by calling typed_binop_from_tree.
2021-06-03Fix signedness issue in DWARF functions (1)Eric Botcazou1-79/+124
The compiler can synthesize DWARF functions to describe the location and size of components in discriminated record types with variant part in Ada, but a limitation is that most quantities must have DWARF2_ADDR_SIZE or else be the result of a zero-extension to DWARF2_ADDR_SIZE of a smaller quantity, as documented in loc_list_from_tree_1: /* ??? Most of the time we do not take proper care for sign/zero extending the values properly. Hopefully this won't be a real problem... */ In Ada discriminants may be either signed or unsigned, so this limitation is problematic. Therefore the attached patch adds a strict_signedness field to the loc_descr_context that is passed around in parts of the DWARF back-end and changes loc_list_from_tree_1 to act upon it being set to true. It also contains an optimization to avoid emitting useless comparisons. gcc/ * dwarf2out.c (scompare_loc_descriptor): Fix head comment. (is_handled_procedure_type): Likewise. (struct loc_descr_context): Add strict_signedness field. (resolve_args_picking_1): Deal with DW_OP_[GNU_]deref_type, DW_OP_[GNU_]convert and DW_OP_[GNU_]reinterpret. (resolve_args_picking): Minor tweak. (function_to_dwarf_procedure): Initialize strict_signedness field. (type_byte_size): Likewise. (field_byte_offset): Likewise. (gen_descr_array_type_die): Likewise. (gen_variant_part): Likewise. (loc_list_from_tree_1) <CALL_EXPR>: Tidy up and set strict_signedness to true when a context is present before evaluating the arguments. <COND_EXPR>: Do not generate a useless comparison with zero. When dereferencing an address, if strict_signedness is true and the type is small and signed, use DW_OP_deref_type to do the dereference and then DW_OP_convert to convert back to the generic type.
2021-05-12Fix ICE in output_rnglists, at dwarf2out.c:12294Bernd Edlinger1-0/+1
In this testcase the compile unit consists of a single text section with a single embedded DECL_IGNORED_P function. So we have a kind of multi-range text section here. To avoid an ICE in output_rnglists we need to make sure that have_multiple_function_sections is set to true. This is a regression from e69ac020372 ("Add line debug info for virtual thunks") 2021-05-12 Bernd Edlinger <bernd.edlinger@hotmail.de> PR debug/100515 * dwarf2out.c (dwarf2out_finish): Set have_multiple_function_sections with multi-range text_section. * gcc.dg/debug/dwarf2/pr100515.c: New testcase.
2021-05-10Come up with startswith function.Martin Liska1-7/+7
gcc/ada/ChangeLog: * gcc-interface/utils.c (def_builtin_1): Use startswith function instead of strncmp. gcc/analyzer/ChangeLog: * sm-file.cc (is_file_using_fn_p): Use startswith function instead of strncmp. gcc/ChangeLog: * builtins.c (is_builtin_name): Use startswith function instead of strncmp. * collect2.c (main): Likewise. (has_lto_section): Likewise. (scan_libraries): Likewise. * coverage.c (coverage_checksum_string): Likewise. (coverage_init): Likewise. * dwarf2out.c (is_cxx): Likewise. (gen_compile_unit_die): Likewise. * gcc-ar.c (main): Likewise. * gcc.c (init_spec): Likewise. (read_specs): Likewise. (execute): Likewise. (check_live_switch): Likewise. * genattrtab.c (write_attr_case): Likewise. (IS_ATTR_GROUP): Likewise. * gencfn-macros.c (main): Likewise. * gengtype.c (type_for_name): Likewise. (gen_rtx_next): Likewise. (get_file_langdir): Likewise. (write_local): Likewise. * genmatch.c (get_operator): Likewise. (get_operand_type): Likewise. (expr::gen_transform): Likewise. * genoutput.c (validate_optab_operands): Likewise. * incpath.c (add_sysroot_to_chain): Likewise. * langhooks.c (lang_GNU_C): Likewise. (lang_GNU_CXX): Likewise. (lang_GNU_Fortran): Likewise. (lang_GNU_OBJC): Likewise. * lto-wrapper.c (run_gcc): Likewise. * omp-general.c (omp_max_simt_vf): Likewise. * omp-low.c (omp_runtime_api_call): Likewise. * opts-common.c (parse_options_from_collect_gcc_options): Likewise. * read-rtl-function.c (function_reader::read_rtx_operand_r): Likewise. * real.c (real_from_string): Likewise. * selftest.c (assert_str_startswith): Likewise. * timevar.c (timer::validate_phases): Likewise. * tree.c (get_file_function_name): Likewise. * ubsan.c (ubsan_use_new_style_p): Likewise. * varasm.c (default_function_rodata_section): Likewise. (incorporeal_function_p): Likewise. (default_section_type_flags): Likewise. * system.h (startswith): Define startswith. gcc/c-family/ChangeLog: * c-ada-spec.c (print_destructor): Use startswith function instead of strncmp. (dump_ada_declaration): Likewise. * c-common.c (disable_builtin_function): Likewise. (def_builtin_1): Likewise. * c-format.c (check_tokens): Likewise. (check_plain): Likewise. (convert_format_name_to_system_name): Likewise. gcc/c/ChangeLog: * c-aux-info.c (affix_data_type): Use startswith function instead of strncmp. * c-typeck.c (build_function_call_vec): Likewise. * gimple-parser.c (c_parser_gimple_parse_bb_spec): Likewise. gcc/cp/ChangeLog: * decl.c (duplicate_decls): Use startswith function instead of strncmp. (cxx_builtin_function): Likewise. (omp_declare_variant_finalize_one): Likewise. (grokfndecl): Likewise. * error.c (dump_decl_name): Likewise. * mangle.c (find_decomp_unqualified_name): Likewise. (write_guarded_var_name): Likewise. (decl_tls_wrapper_p): Likewise. * parser.c (cp_parser_simple_type_specifier): Likewise. (cp_parser_tx_qualifier_opt): Likewise. * pt.c (template_parm_object_p): Likewise. (dguide_name_p): Likewise. gcc/d/ChangeLog: * d-builtins.cc (do_build_builtin_fn): Use startswith function instead of strncmp. * dmd/dinterpret.c (evaluateIfBuiltin): Likewise. * dmd/dmangle.c: Likewise. * dmd/hdrgen.c: Likewise. * dmd/identifier.c (Identifier::toHChars2): Likewise. gcc/fortran/ChangeLog: * decl.c (variable_decl): Use startswith function instead of strncmp. (gfc_match_end): Likewise. * gfortran.h (gfc_str_startswith): Likewise. * module.c (load_omp_udrs): Likewise. (read_module): Likewise. * options.c (gfc_handle_runtime_check_option): Likewise. * primary.c (match_arg_list_function): Likewise. * trans-decl.c (gfc_get_symbol_decl): Likewise. * trans-expr.c (gfc_conv_procedure_call): Likewise. * trans-intrinsic.c (gfc_conv_ieee_arithmetic_function): Likewise. gcc/go/ChangeLog: * gofrontend/runtime.cc (Runtime::name_to_code): Use startswith function instead of strncmp. gcc/objc/ChangeLog: * objc-act.c (objc_string_ref_type_p): Use startswith function instead of strncmp. * objc-encoding.c (encode_type): Likewise. * objc-next-runtime-abi-02.c (has_load_impl): Likewise.
2021-05-07Fix incorrect array bounds with -fgnat-encodings=minimal in DWARFEric Botcazou1-21/+29
This makes add_subscript_info query the get_array_descr_info hook for the actual information when it is defined. gcc/ * cfgexpand.c (expand_gimple_basic_block): Do not inherit a current location for the outgoing edges of an empty block. * dwarf2out.c (add_subscript_info): Retrieve the bounds and index type by means of the get_array_descr_info langhook, if it is set and returns true. Remove obsolete code dealing with unnamed subtypes. gcc/testsuite/ * gnat.dg/debug18.adb: New test.
2021-05-06Add line debug info for virtual thunksBernd Edlinger1-50/+194
There is no debug info when the DECL_IGNORED_P flag is set. But sometimes we have the line info of the function decl, as in the case of on virtual thunks. So instead of no line info at all, we emit at least the location of the function decl. On the other side, there are DECL_IGNORED_P functions which do not have any source line info at all. Remove those from the debug_range info, to make it clear for the debugger that the line info for these functions is invalid. This has the effect that the debugger will not step into the function without debug info. 2021-05-06 Bernd Edlinger <bernd.edlinger@hotmail.de> PR ipa/97937 * debug.h (gcc_debug_hooks): Add set_ignored_loc function pointer. * dwarf2out.h (dw_fde_node::ignored_debug): New data item. * dbxout.c (dbx_debug_hooks, xcoff_debug_hooks): Add dummy set_ignored_loc callbacks. * debug.c (do_nothing_debug_hooks): Likewise. * vmsdbgout.c (vmsdbg_debug_hooks): Likewise. * dwarf2out.c (text_section_used, cold_text_section_used): Remove. (in_text_section_p, last_text_label, last_cold_label, switch_text_ranges, switch_cold_ranges): New data items. (dwarf2out_note_section_used): Remove. (dwarf2out_begin_prologue): Set fde->ignored_debug and in_text_section_p. (mark_ignored_debug_section): New helper function. (dwarf2out_end_epilogue, dwarf2out_switch_text_section): Call mark_ignored_debug_section. (dwarf2_debug_hooks): Use dwarf2out_set_ignored_loc. (dwarf2_lineno_debug_hooks): Use dummy for set_ignored_loc. (size_of_aranges): Adjust formula for multi-part text ranges size. (output_aranges): Output multi-part text ranges. (dwarf2out_set_ignored_loc): New callback function. (dwarf2out_finish): Output multi-part text ranges. (dwarf2out_c_finalize): Clear new data items. * final.c (final_start_function_1): Call set_ignored_loc callback. (final_scan_insn_1): Likewise. * ggc-page.c (gt_ggc_mx): New helper function. * stringpool.c (gt_pch_nx): Likewise.
2021-05-05Generate debug info for local dynamic record typesEric Botcazou1-2/+14
In Ada you can embed VLAs in local record types and thus end up with dynamic offsets in record types, which are not well described in DWARF because 1) the temporaries generated for them by the gimplifier are naturally marked DECL_IGNORED_P and 2) when the types are referenced in nested subprograms, the DWARF back-end does not correctly handle the rewritten references. gcc/ * dwarf2out.c (loc_list_from_tree_1) <DECL>: During early DWARF, do not expand the VALUE_EXPR of variables put in the non-local frame. * gimplify.c (gimplify_type_sizes) <RECORD_TYPE>: If the type is not to be ignored for debug info, ensure its variable offsets are not. gcc/testsuite/ * gnat.dg/debug8.adb: Minor tweak. * gnat.dg/debug11.adb: Likewise. * gnat.dg/debug16.adb: Likewise. * gnat.dg/debug17.adb: New test. * gnat.dg/specs/debug1.ads: Minor tweak.
2021-04-22Fix various typos.Martin Liska1-2/+2
PR testsuite/100159 PR testsuite/100192 gcc/ChangeLog: * builtins.c (expand_builtin): Fix typos and missing comments. * dwarf2out.c (gen_subprogram_die): Likewise. (gen_struct_or_union_type_die): Likewise. gcc/fortran/ChangeLog: * frontend-passes.c (optimize_expr): Fix typos and missing comments. gcc/testsuite/ChangeLog: * g++.dg/template/nontype29.C: Fix typos and missing comments. * gcc.dg/Warray-bounds-64.c: Likewise. * gcc.dg/Warray-parameter.c: Likewise. * gcc.dg/Wstring-compare.c: Likewise. * gcc.dg/format/gcc_diag-11.c: Likewise. * gfortran.dg/array_constructor_3.f90: Likewise. * gfortran.dg/matmul_bounds_9.f90: Likewise. * gfortran.dg/pr78033.f90: Likewise. * gfortran.dg/pr96325.f90: Likewise.
2021-04-21Fix clang warnings.Martin Liska1-0/+4
gcc/ChangeLog: * config/i386/i386.c: Remove superfluous || TARGET_MACHO which remains to be '(... || 0)' and clang complains about it. * dwarf2out.c (AT_vms_delta): Declare conditionally. (add_AT_vms_delta): Likewise. * tree.c (fld_simplified_type): Use rather more common pattern for disabling of something (#if 0). (get_tree_code_name): Likewise. (verify_type_variant): Likewise.
2021-03-31dwarf2out: Fix up ranges for -gdwarf-5 -gsplit-dwarf [PR99490]Jakub Jelinek1-44/+211
For -gdwarf-4 -gsplit-dwarf we used to emit .debug_ranges section (so in the binaries/shared libraries) with DW_AT_ranges from skeleton units as well as .debug_info.dwo pointing to it through DW_FORM_sec_offset (and DW_AT_GNU_ranges_base pointing into section, not sure for what reason exactly). When DWARF5 support was being added, we've started using .debug_rnglists section, added DW_AT_rnglists_base to the DW_TAG_skeleton_unit, kept DW_AT_ranges with DW_FORM_sec_offset in the skeleton and switched over to DW_FORM_rnglistx for DW_AT_ranges in .debug_info.dwo. But the DWARF5 spec actually means for the ranges section (at least everything for those DW_AT_ranges in .debug_info.dwo) to sit in .debug_rnglists.dwo section next to the .debug_info.dwo, rather than having consumers look it up in the binary/shared library instead. Based on some discussions in the DWARF discuss mailing list: http://lists.dwarfstd.org/pipermail/dwarf-discuss-dwarfstd.org/2021-March/thread.html#4765 this patch mostly follows what LLVM emits for that right now: 1) small .debug_rnglists section (when needed) just to cover the skeleton DW_AT_ranges (if present); the content of the section uses the Split DWARFy DW_RLE_* codes with addrx encodings where possible 2) DW_AT_ranges in the skeleton uses DW_FORM_sec_offset (difference from LLVM which uses DW_FORM_rnglistx, which makes it larger and ambiguous) 3) DW_AT_rnglists_base attribute is gone from the skeleton (again, unlike LLVM where it is just confusing what exactly it means because it is inherited; it would make sense if we emitted DW_FORM_rnglistx in non-split DWARF, but unless ranges are shared, I'm afraid we'd make DWARF larger with fewer relocations by that) 4) usually big .debug_rnglists.dwo section again with using DW_RLE_*x* where possible 5) DW_AT_ranges with DW_FORM_rnglistx from .debug_info.dwo referring to that .debug_rnglists.dwo ranges 2021-03-31 Jakub Jelinek <jakub@redhat.com> PR debug/99490 * dwarf2out.c (debug_ranges_dwo_section): New variable. (DW_RANGES_IDX_SKELETON): Define. (struct dw_ranges): Add begin_entry and end_entry members. (DEBUG_DWO_RNGLISTS_SECTION): Define. (add_ranges_num): Adjust r initializer for addition of *_entry members. (add_ranges_by_labels): For -gsplit-dwarf and force_direct, set idx to DW_RANGES_IDX_SKELETON. (use_distinct_base_address_for_range): New function. (index_rnglists): Don't set r->idx if it is equal to DW_RANGES_IDX_SKELETON. Initialize r->begin_entry and r->end_entry for -gsplit-dwarf if those will be needed by output_rnglists. (output_rnglists): Add DWO argument. If true, switch to debug_ranges_dwo_section rather than debug_ranges_section. Adjust l1/l2 label indexes. Only output the offset table when dwo is true and don't include in there the skeleton range entry if present. For -gsplit-dwarf, skip ranges that belong to the other rnglists section. Change return type from void to bool and return true if there are any range entries for the other section. For dwarf_split_debug_info use DW_RLE_startx_endx, DW_RLE_startx_length and DW_RLE_base_addressx entries instead of DW_RLE_start_end, DW_RLE_start_length and DW_RLE_base_address. Use use_distinct_base_address_for_range. (init_sections_and_labels): Initialize debug_ranges_dwo_section if -gsplit-dwarf and DWARF >= 5. Adjust ranges_section_label and range_base_label indexes. (dwarf2out_finish): Call index_rnglists earlier before finalizing .debug_addr. Never emit DW_AT_rnglists_base attribute. For -gsplit-dwarf and DWARF >= 5 call output_rnglists up to twice with different dwo arguments. (dwarf2out_c_finalize): Clear debug_ranges_dwo_section.
2021-03-22debug: Fix __int128 handling in dwarf2out [PR99562]Jakub Jelinek1-5/+5
The PR66728 changes broke __int128 handling. It emits wide_int numbers in their minimum unsigned precision rather than in their full precision. The problem is then that e.g. the DW_OP_implicit_value path: int_mode = as_a <scalar_int_mode> (mode); loc_result = new_loc_descr (DW_OP_implicit_value, GET_MODE_SIZE (int_mode), 0); loc_result->dw_loc_oprnd2.val_class = dw_val_class_wide_int; loc_result->dw_loc_oprnd2.v.val_wide = ggc_alloc<wide_int> (); *loc_result->dw_loc_oprnd2.v.val_wide = rtx_mode_t (rtl, int_mode); emits invalid DWARF. In particular this patch fixes there multiple occurences of: .byte 0x9e # DW_OP_implicit_value .uleb128 0x10 .quad 0xffffffffffffffff + .quad 0 .quad .LVL46 # Location list begin address (*.LLST40) .quad .LFE14 # Location list end address (*.LLST40) where we said the value has 16 byte size but then only emitted 8 byte value. My understanding is that most of the places that use val_wide expect the precision they chose (the one of the mode they want etc.), the only exception is the add_const_value_attribute case where it deals with VOIDmode CONST_WIDE_INTs, for that I agree when we don't have a mode we need to fallback to minimum precision (not sure if maximum of min_precision UNSIGNED and SIGNED wouldn't be better, then consumers would know if it is signed or unsigned by looking at the MSB), but that code already computes the precision, just decided to create the wide_int with much larger precision (e.g. 512 bit on x86_64). 2021-03-22 Jakub Jelinek <jakub@redhat.com> PR debug/99562 PR debug/66728 * dwarf2out.c (get_full_len): Use get_precision rather than min_precision. (add_const_value_attribute): Make sure add_AT_wide argument has precision prec rather than some very wide one.
2021-03-21dwarf2out: Fix debug info for 2 byte floats [PR99388]Jakub Jelinek1-10/+20
Aarch64, ARM and a couple of other architectures have 16-bit floats, HFmode. As can be seen e.g. on void foo (void) { __fp16 a = 1.0; asm ("nop"); a = 2.0; asm ("nop"); a = 3.0; asm ("nop"); } testcase, GCC mishandles this on the dwarf2out.c side by assuming all floating point types have sizes in multiples of 4 bytes, so what GCC emits is it says that e.g. the DW_OP_implicit_value will be 2 bytes but then doesn't emit anything and so anything emitted after it is treated by consumers as the value and then they get out of sync. real_to_target which insert_float uses indeed fills it that way, but putting into an array of long 32 bits each time, but for the half floats it puts everything into the least significant 16 bits of the first long no matter what endianity host or target has. The following patch fixes it. With the patch the -g -O2 -dA output changes (in a cross without .uleb128 support): .byte 0x9e // DW_OP_implicit_value .byte 0x2 // uleb128 0x2 + .2byte 0x3c00 // fp or vector constant word 0 .byte 0x7 // DW_LLE_start_end (*.LLST0) .8byte .LVL1 // Location list begin address (*.LLST0) .8byte .LVL2 // Location list end address (*.LLST0) .byte 0x4 // uleb128 0x4; Location expression size .byte 0x9e // DW_OP_implicit_value .byte 0x2 // uleb128 0x2 + .2byte 0x4000 // fp or vector constant word 0 .byte 0x7 // DW_LLE_start_end (*.LLST0) .8byte .LVL2 // Location list begin address (*.LLST0) .8byte .LFE0 // Location list end address (*.LLST0) .byte 0x4 // uleb128 0x4; Location expression size .byte 0x9e // DW_OP_implicit_value .byte 0x2 // uleb128 0x2 + .2byte 0x4200 // fp or vector constant word 0 .byte 0 // DW_LLE_end_of_list (*.LLST0) Bootstrapped/regtested on x86_64-linux, aarch64-linux and armv7hl-linux-gnueabi, ok for trunk? I fear the CONST_VECTOR case is still broken, while HFmode elements of vectors should be fine (it uses eltsize of the element sizes) and likewise SFmode could be fine, DFmode vectors are emitted as two 32-bit ints regardless of endianity and I'm afraid it can't be right on big-endian. But I haven't been able to create a testcase that emits a CONST_VECTOR, for e.g. unused vector vars with constant operands we emit CONCATN during expansion and thus ... DW_OP_*piece for each element of the vector and for DW_TAG_call_site_parameter we give up (because we handle CONST_VECTOR only in loc_descriptor, not mem_loc_descriptor). 2021-03-21 Jakub Jelinek <jakub@redhat.com> PR debug/99388 * dwarf2out.c (insert_float): Change return type from void to unsigned, handle GET_MODE_SIZE (mode) == 2 and return element size. (mem_loc_descriptor, loc_descriptor, add_const_value_attribute): Adjust callers.
2021-03-03dwarf2out: Fix -gsplit-dwarf on riscv or other non-.uleb128 targets [PR99090]Jakub Jelinek1-7/+24
As mentioned in the PR, riscv* only supports .uleb128 with constant arguments, doesn't support difference of two labels because of aggressive linker relaxations. But I bet various other targets, especially those not using GNU assembler, might suffer from the same problem. As the FIXME comment in output_loc_list indicates, we ICE on -gsplit-dwarf on those targets whenever we need .debug_loclists, because we only emit DW_LLE_startx_length which requires working .uleb128 delta of 2 code section labels. We can't use DW_LLE_base_addressx once followed by DW_LLE_offset_pair either because the latter suffers from the same issue - need .uleb128 difference of code section labels (and in that case not just for the second operand but also for the first). So, this patch implements what the comment said and emits DW_LLE_startx_endx instead, which wastes more space in .debug_addr, but will work. Bootstrapped/regtested on x86_64-linux and i686-linux and as written in the PR, Jim has tested it on riscv*linux. Ok for trunk? BTW, for HAVE_AS_LEB128 -gdwarf-5 -gsplit-dwarf, maybe we should consider instead of always emitting DW_LLE_startx_length do all the optimizations that we do for HAVE_AS_LEB128 -gdwarf-5, or at least a subset of them. For !have_multiple_function_sections, we in that case emit just DW_LLE_offset_pair (that can certainly be a win for small TUs, we wouldn't need any .debug_addr entry in that case; on the other side, just using DW_LLE_offset_pair can be harmful for very large TUs especially if the loclist has many entries, emitting in that case a single DW_LLE_base_address or for -gsplit-dwarf DW_LLE_base_addressx followed by DW_LLE_offset_pair might be much smaller), and for have_multiple_function_sections figuring out if DW_LLE_base_address followed by DW_LLE_offset_pair entries or DW_LLE_start_length is bettter. So perhaps a middle-ground for -gsplit-dwarf would be to always do the have_multiple_function_sections behavior, i.e. DW_LLE_base_addressx followed by DW_LLE_offset_pair vs. DW_LLE_startx_length decisions based on the ranges and their counts. And perhaps dwz could optimize afterwards, on linked binaries or shared libraries it knows all the offsets and could figure out optimal DW_LLE_*. 2021-03-03 Jakub Jelinek <jakub@redhat.com> PR debug/99090 * dwarf2out.c (dw_loc_list_struct): Add end_entry member. (new_loc_list): Clear end_entry. (output_loc_list): Only use DW_LLE_startx_length for -gsplit-dwarf if HAVE_AS_LEB128, otherwise use DW_LLE_startx_endx. Fix comment typo. (index_location_lists): For dwarf_version >= 5 without HAVE_AS_LEB128, initialize also end_entry.
2021-03-02dwarf2out: Fix up split-dwarf .debug_macro handling [PR99319]Jakub Jelinek1-8/+21
The -gsplit-dwarf changes came a few months after .debug_macro and the r0-120109 changes just changed the 2nd operand of DW_MACRO_GNU_{define,undef}_indirect from the usual .debug_str section offset argument to leb128 index into .debug_str_offsets without changing the opcodes. DWARF5 standardized different opcodes for those, but GCC hasn't been changed yet for that. This patch starts using DW_MACRO_define_strx and DW_MACRO_undef_strx instead of DW_MACRO_define_strp and DW_MACRO_undef_strp when -gsplit-dwarf -gdwarf-5 -g3. I'm not sure what to do if anything with the -gdwarf-4 -gsplit-dwarf -g3 -gno-strict-dwarf case, we've been emitting it that way for 8 years and it is an extension, so presumably the consumers that cared have already hacks to handle DW_MACRO_GNU_{define,undef}_indirect differently in .debug_macro 4 sections depending on if it is .debug_macro.dwo or .debug_macro. Another change the patch does is that it will use DW_MACRO_{define,undef}_str{p,x} even with -gdwarf-5 -gstrict-dwarf -g3, for DWARF 4 we were doing that only for -gno-strict-dwarf as we've emitted .debug_macro section only in that case. 2021-03-02 Jakub Jelinek <jakub@redhat.com> PR debug/99319 * dwarf2out.c (output_macinfo_op): Use DW_MACRO_*_str* even with -gdwarf-5 -gstrict-dwarf. For -gsplit-dwarf -gdwarf-5 use DW_MACRO_*_strx instead of DW_MACRO_*_strp. Handle DW_MACRO_define_strx and DW_MACRO_undef_strx. (save_macinfo_strings): Use DW_MACRO_*_str* even with -gdwarf-5 -gstrict-dwarf. Handle DW_MACRO_define_strx and DW_MACRO_undef_strx.
2021-02-10dwarf2out: Don't prune static data members initialized with constants with ↵Jakub Jelinek1-0/+10
-gdwarf-5 [PR98755] In DWARF4 and earlier, static data members were represented as DW_TAG_member and the pruning code wouldn't prune those, but in DWARF5 they are represented as DW_TAG_variable with the class parent and the pruning code prunes those by default unless they are referenced from a separate definition without the class parent (out of class definition). C++17 inline vars have the definitions in the class though and even before if the static data member isn't ODR used, it doesn't need to be defined, so we could just never describe those static data members in the debug info. This change stops the pruning of DW_TAG_variable with DW_AT_const_value attribute with a class parent for -gdwarf-5 and later. This fixes -FAIL: g++.dg/debug/dwarf2/constexpr-var-1.C scan-assembler-times DW_AT_const_expr 2 -FAIL: libstdc++-prettyprinters/80276.cc whatis p4 -FAIL: libstdc++-prettyprinters/80276.cc whatis p4 -FAIL: libstdc++-prettyprinters/libfundts.cc print as -FAIL: libstdc++-prettyprinters/libfundts.cc print as -FAIL: libstdc++-prettyprinters/libfundts.cc print os -FAIL: libstdc++-prettyprinters/libfundts.cc print os 2021-02-10 Jakub Jelinek <jakub@redhat.com> PR debug/98755 * dwarf2out.c (prune_unused_types_walk): Mark DW_TAG_variable DIEs at class scope for DWARF5+.
2021-01-26c++: Add support for -std=c++23Paul Fee1-1/+6
Derived from the changes that added C++2a support in 2017. r8-3237-g026a79f70cf33f836ea5275eda72d4870a3041e5 No C++23 features are added here. Use of -std=c++23 sets __cplusplus to 202100L. $ g++ -std=c++23 -dM -E -x c++ - < /dev/null | grep cplusplus #define __cplusplus 202100L gcc/ * doc/cpp.texi (__cplusplus): Document value for -std=c++23 or -std=gnu++23. * doc/invoke.texi: Document -std=c++23 and -std=gnu++23. * dwarf2out.c (highest_c_language): Recognise C++20 and C++23. (gen_compile_unit_die): Recognise C++23. gcc/c-family/ * c-common.h (cxx_dialect): Add cxx23 as a dialect. * c.opt: Add options for -std=c++23, std=c++2b, -std=gnu++23 and -std=gnu++2b * c-opts.c (set_std_cxx23): New. (c_common_handle_option): Set options when -std=c++23 is enabled. (c_common_post_options): Adjust comments. (set_std_cxx20): Likewise. gcc/testsuite/ * lib/target-supports.exp (check_effective_target_c++2a): Check for C++2a or C++23. (check_effective_target_c++20_down): New. (check_effective_target_c++23_only): New. (check_effective_target_c++23): New. * g++.dg/cpp23/cplusplus.C: New. libcpp/ * include/cpplib.h (c_lang): Add CXX23 and GNUCXX23. * init.c (lang_defaults): Add rows for CXX23 and GNUCXX23. (cpp_init_builtins): Set __cplusplus to 202100L for C++23.
2021-01-22dwarf2out: Always emit required 0 entries for DWARF 5 in *.debug_line [PR98796]Jakub Jelinek1-4/+44
When GCC is emitting .debug_line or .gnu.debuglto_.debug_line section by itself (happens either with too old or non-GNU assembler, with -gno-as-loc-support or with -flto) on empty translation units, it violates the DWARF 5 requirements. The standard says: "The first entry is the current directory of the compilation." and a few lines later: "The first entry in the sequence is the primary source file whose file name exactly matches that given in the DW_AT_name attribute in the compilation unit debugging information entry." GCC emits 4 zeros (directory entry format count, directories count, filename entry format count and filename count), which would be ok if the spec said The first entry may be rather than is. I had a brief look at whether I could just fall through into the rest of the function, but there are too many assumptions that there is at least one normal file that it can't be done that way easily. So this patch instead extends the early out code to emit the required minimum, which is 15 bytes more than we used to emit before. 2021-01-22 Jakub Jelinek <jakub@redhat.com> PR debug/98796 * dwarf2out.c (output_file_names): For -gdwarf-5, if there are no filenames to emit, still emit the required 0 index directory and filename entries that match DW_AT_comp_dir and DW_AT_name of the compilation unit.
2021-01-20debug: Fix up DWARF 5 -g -flto -ffat-lto-objects [PR98765]Jakub Jelinek1-3/+39
As mentioned in the PR, with -gdwarf-5 (or -g now) -flto -ffat-lto-objects, users can't strip the LTO sections with strip -p -R .gnu.lto_* -R .gnu.debuglto_* -N __gnu_lto_v1 anymore when GCC is configured against recent binutils. The problem is that in that case .gnu.debuglto_.debug_line_str section is then used, which is fine for references to strings in .gnu.debuglto_.* sections, but not when those references are in .debug_info section too; those should really reference separate strings in .debug_line_str section. For .gnu.debuglto_.debug_str vs. .debug_str we handle it right, we reset_indirect_string the strings and thus force creation of new labels for the second time. But for DW_FORM_line_strp as the patch shows, there were multiple problems. First one was that reset_indirect_string, even when called through traverse on debug_line_str_hash, didn't do anything at all (fixed by first hunk). The second bug was that the DW_FORM_line_strp strings, which were supposed to be only visible through debug_line_str_hash, leaked into debug_str_hash (second hunk). And the third thing is that when we reset debug_line_str_hash, we should still make those strings DW_FORM_line_strp if they are accessed. One could do it by reinstantiating DW_FORM_line_strp right away in reset_indirect_string and not clear debug_line_str_hash, but that has the disadvantage that we then force emitting .debug_line_str strings that aren't really needed - we need those from the CU DIEs' DW_AT_name and DW_AT_comp_dir attributes, but when emitting .debug_line section through assembler, we don't need to emit the strings we only needed for .gnu.debuglto_.debug_line which is always emitted by the compiler. 2021-01-20 Jakub Jelinek <jakub@redhat.com> PR debug/98765 * dwarf2out.c (reset_indirect_string): Also reset indirect strings with DW_FORM_line_strp form. (prune_unused_types_update_strings): Don't add into debug_str_hash indirect strings with DW_FORM_line_strp form. (adjust_name_comp_dir): New function. (dwarf2out_finish): Call it on CU DIEs after resetting debug_line_str_hash.
2021-01-19dwarf2out: reset generation count in toplev::finalize [PR98751]David Malcolm1-26/+40
PR debug/98751 reports an issue in which most of libgccjit's tests fails in DWARF 5 handling with `.Ldebug_loc2' is already defined" asm errors. The bogus label is being emitted at the 3rd in-process iteration, at: 31673 ASM_OUTPUT_LABEL (asm_out_file, loc_section_label); which on the initial iteration emits: 145 │ .Ldebug_loc0: on the 2nd iteration: 145 │ .Ldebug_loc1: and on the 3rd iteration: 145 │ .Ldebug_loc2: which is a duplicate of a label emitted earlier: 138 │ .section .debug_loclists,"",@progbits 139 │ .long .Ldebug_loc3-.Ldebug_loc2 140 │ .Ldebug_loc2: 141 │ .value 0x5 142 │ .byte 0x8 143 │ .byte 0 144 │ .long 0 145 │ .Ldebug_loc2: The issue seems to be that init_sections_and_labels creates the label ASM_GENERATE_INTERNAL_LABEL (loc_section_label, DEBUG_LOC_SECTION_LABEL, generation); where "generation" is a static local to init_sections_and_labels that increments, and thus eventually hits the duplicate value. It appears that this value is intended to be either 0 or 1, but in the libgccjit case the compilation code can be invoked an arbitrary number of times in-process, and hence can eventually lead to a label name collision. This patch adds code to dwarf2out_c_finalize (called by toplev::finalize in libgccjit) to reset the generation counts, fixing the issue. gcc/ChangeLog: PR debug/98751 * dwarf2out.c (output_line_info): Rename static variable "generation", moving it out of the function to... (output_line_info_generation): New. (init_sections_and_labels): Likewise, renaming the variable to... (init_sections_and_labels_generation): New. (dwarf2out_c_finalize): Reset the new variables.
2021-01-04Update copyright years.Jakub Jelinek1-1/+1
2020-12-19d: Fix ICE in in force_decl_die, at dwarf2out.c with -gdwarf-2 ↵Iain Buclaw1-0/+7
-gstrict-dwarf [PR98067] Manifest constants in D are represented as CONST_DECLs, which can be imported from one module to another. However, when compiling on strict dwarf2 targets such as *-*-darwin10, importing CONST_DECLs cannot be represented in debug as D did not exist as an AT_language until dwarf3, and the only available fallback being DW_LANG_C. As CONST_DECLs are treated as enumerators in C, and not outputted individually in gen_decl_die, this causes an internal error in force_decl_die to occur. To handle this, similar to other places in dwarf2out, if a CONST_DECL is seen in dwarf2out_imported_module_or_decl_1, then we simply return early if the language is not one of Ada, D, or Fortran. gcc/ChangeLog: PR d/98067 * dwarf2out.c (dwarf2out_imported_module_or_decl_1): Handle CONST_DECL only if is_fortran, is_ada, or is_dlang. gcc/testsuite/ChangeLog: PR d/98067 * gdc.dg/debug/debug.exp: New test. * gdc.dg/debug/dwarf2/dwarf2.exp: New test. * gdc.dg/debug/dwarf2/imports/pr98067.d: New test. * gdc.dg/debug/dwarf2/langdw2.d: New test. * gdc.dg/debug/dwarf2/langdw3.d: New test. * gdc.dg/debug/dwarf2/pr98067.d: New test. * gdc.dg/debug/trivial.d: New test.
2020-12-10Small fix to PLACEHOLDER_EXPR handling in loc_list_from_tree_1Eric Botcazou1-3/+4
This handles the discriminated record types of Ada: the PLACEHOLDER_EXPR is the "template" expression for the discriminant in the type definition. Now for some components, typically arrays whose upper bound is the discriminant, the compiler creates a local subtype for the component, so the code needs to be able to deal with this nested type. gcc/ChangeLog: * dwarf2out.c (loc_list_from_tree_1) <PLACEHOLDER_EXPR>: Deal with a nested context type
2020-12-04dwarf: Add -gdwarf{32,64} optionsJakub Jelinek1-94/+94
The following patch makes the choice between 32-bit and 64-bit DWARF formats selectable by command line switch, rather than being hardcoded through DWARF_OFFSET_SIZE macro. The options themselves don't turn on debug info themselves, so one needs to use -g -gdwarf64 or similar. 2020-12-04 Jakub Jelinek <jakub@redhat.com> * common.opt (-gdwarf32, -gdwarf64): New options. * config/rs6000/rs6000.c (rs6000_option_override_internal): Default dwarf_offset_size to 8 if not overridden from the command line. * dwarf2out.c: Change all occurrences of DWARF_OFFSET_SIZE to dwarf_offset_size. * doc/invoke.texi (-gdwarf32, -gdwarf64): Document.
2020-12-04Refactor -frecord-gcc-switches.Martin Liska1-110/+8
gcc/ChangeLog: * doc/tm.texi: Change argument of the record_gcc_switches hook and remove SWITCH_TYPE_* enum values. * dwarf2out.c (gen_producer_string): Move to opts.c and remove handling of the dwarf_record_gcc_switches option. (dwarf2out_early_finish): Use moved gen_producer_string function. * opts.c (gen_producer_string): New. * opts.h (gen_producer_string): New. * target.def: Change type of record_gcc_switches. * target.h (enum print_switch_type): Remove. (elf_record_gcc_switches): Change first argument. * toplev.c (MAX_LINE): Remove. (print_to_asm_out_file): Likewise. (print_to_stderr): Likewise. (print_single_switch): Likewise. (print_switch_values): Likewise. (init_asm_output): Use new gen_producer_string function. (process_options): Likewise. * varasm.c (elf_record_gcc_switches): Just save the string argument to the ELF container.
2020-12-03dwarf2out: Fix up add_scalar_info not to create invalid DWARFJakub Jelinek1-1/+12
As discussed in https://sourceware.org/bugzilla/show_bug.cgi?id=26987 , for very large bounds (which don't fit into HOST_WIDE_INT) GCC emits invalid DWARF. In DWARF2, DW_AT_{lower,upper}_bound were constant reference class. In DWARF3 they are block constant reference and the Static and Dynamic Properties of Types chapter says: "For a block, the value is interpreted as a DWARF expression; evaluation of the expression yields the value of the attribute." In DWARF4/5 they are constant exprloc reference class. Now, for add_AT_wide we use DW_FORM_data16 (valid in constant class) when -gdwarf-5, but otherwise just use DW_FORM_block1, which is not constant class, but block. For DWARF3 this means emitting clearly invalid DWARF, because the DW_FORM_block1 should contain a DWARF expression, not random bytes containing the constant directly. For DWARF2/DWARF4/5 it could be considered a GNU extension, but a very badly designed one when it means something different in DWARF3. The following patch uses add_AT_wide only if we know we'll be using DW_FORM_data16, and otherwise wastes 2 extra bytes and emits in there DW_OP_implicit_value <size> before the constant. 2020-12-03 Jakub Jelinek <jakub@redhat.com> * dwarf2out.c (add_scalar_info): Only use add_AT_wide for 128-bit constants and only in dwarf-5 or later, where DW_FORM_data16 is available. Otherwise use DW_FORM_block*/DW_FORM_exprloc with DW_OP_implicit_value to describe the constant.
2020-12-01c++, debug: Treat -std=c++20 -gdwarf-5 like C++14 rather than C++98Jakub Jelinek1-1/+2
I have noticed that while we use DW_LANG_C_plus_plus_14 for -std=c++17 -gdwarf-5, we use DW_LANG_C_plus_plus (aka C++98) for -std=c++20 -gdwarf-5. The following patch makes those two match. 2020-12-01 Jakub Jelinek <jakub@redhat.com> * dwarf2out.c (gen_compile_unit_die): Treat GNU C++20 like C++14 for -gdwarf-5. * g++.dg/debug/dwarf2/lang-cpp17.C: New test. * g++.dg/debug/dwarf2/lang-cpp20.C: New test.
2020-11-26dwarf: fix language_string for C2XMartin Liska1-1/+1
gcc/ChangeLog: * dwarf2out.c (gen_compile_unit_die): Fix missing == 0 in a strcmp.
2020-11-21Additional small changes to support opaque modesAaron Sawdey1-0/+2
After building some larger codes using opaque types and some c++ codes using opaque types it became clear I needed to go through and look for places where opaque types and modes needed to be handled. A whole pile of one-liners. gcc/ * typeclass.h: Add opaque_type_class. * builtins.c (type_to_class): Identify opaque type class. * dwarf2out.c (is_base_type): Handle opaque types. (gen_type_die_with_usage): Handle opaque types. * expr.c (count_type_elements): Opaque types should never have initializers. * ipa-devirt.c (odr_types_equivalent_p): No type-specific handling for opaque types is needed as it eventually checks the underlying mode which is what is important. * tree-streamer.c (record_common_node): Handle opaque types. * tree.c (type_contains_placeholder_1): Handle opaque types. (type_cache_hasher::equal): No additional comparison needed for opaque types. gcc/c-family * c-pretty-print.c (c_pretty_printer::simple_type_specifier): Treat opaque types like other types. (c_pretty_printer::direct_abstract_declarator): Opaque types are supported types. gcc/c * c-aux-info.c (gen_type): Support opaque types. gcc/cp * error.c (dump_type): Handle opaque types. (dump_type_prefix): Handle opaque types. (dump_type_suffix): Handle opaque types. (dump_expr): Handle opaque types. * pt.c (tsubst): Allow opaque types in templates. (unify): Allow opaque types in templates. * typeck.c (structural_comptypes): Handle comparison of opaque types.
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