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authorMartin Liska <mliska@suse.cz>2022-01-14 16:56:44 +0100
committerMartin Liska <mliska@suse.cz>2022-01-17 22:12:04 +0100
commit5c69acb32329d49e58c26fa41ae74229a52b9106 (patch)
treeddb05f9d73afb6f998457d2ac4b720e3b3b60483 /gcc/regrename.c
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
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Rename .c files to .cc files.
gcc/ada/ChangeLog: * adadecode.c: Moved to... * adadecode.cc: ...here. * affinity.c: Moved to... * affinity.cc: ...here. * argv-lynxos178-raven-cert.c: Moved to... * argv-lynxos178-raven-cert.cc: ...here. * argv.c: Moved to... * argv.cc: ...here. * aux-io.c: Moved to... * aux-io.cc: ...here. * cio.c: Moved to... * cio.cc: ...here. * cstreams.c: Moved to... * cstreams.cc: ...here. * env.c: Moved to... * env.cc: ...here. * exit.c: Moved to... * exit.cc: ...here. * expect.c: Moved to... * expect.cc: ...here. * final.c: Moved to... * final.cc: ...here. * gcc-interface/cuintp.c: Moved to... * gcc-interface/cuintp.cc: ...here. * gcc-interface/decl.c: Moved to... * gcc-interface/decl.cc: ...here. * gcc-interface/misc.c: Moved to... * gcc-interface/misc.cc: ...here. * gcc-interface/targtyps.c: Moved to... * gcc-interface/targtyps.cc: ...here. * gcc-interface/trans.c: Moved to... * gcc-interface/trans.cc: ...here. * gcc-interface/utils.c: Moved to... * gcc-interface/utils.cc: ...here. * gcc-interface/utils2.c: Moved to... * gcc-interface/utils2.cc: ...here. * init.c: Moved to... * init.cc: ...here. * initialize.c: Moved to... * initialize.cc: ...here. * libgnarl/thread.c: Moved to... * libgnarl/thread.cc: ...here. * link.c: Moved to... * link.cc: ...here. * locales.c: Moved to... * locales.cc: ...here. * mkdir.c: Moved to... * mkdir.cc: ...here. * raise.c: Moved to... * raise.cc: ...here. * rtfinal.c: Moved to... * rtfinal.cc: ...here. * rtinit.c: Moved to... * rtinit.cc: ...here. * seh_init.c: Moved to... * seh_init.cc: ...here. * sigtramp-armdroid.c: Moved to... * sigtramp-armdroid.cc: ...here. * sigtramp-ios.c: Moved to... * sigtramp-ios.cc: ...here. * sigtramp-qnx.c: Moved to... * sigtramp-qnx.cc: ...here. * sigtramp-vxworks.c: Moved to... * sigtramp-vxworks.cc: ...here. * socket.c: Moved to... * socket.cc: ...here. * tracebak.c: Moved to... * tracebak.cc: ...here. * version.c: Moved to... * version.cc: ...here. * vx_stack_info.c: Moved to... * vx_stack_info.cc: ...here. gcc/ChangeLog: * adjust-alignment.c: Moved to... * adjust-alignment.cc: ...here. * alias.c: Moved to... * alias.cc: ...here. * alloc-pool.c: Moved to... * alloc-pool.cc: ...here. * asan.c: Moved to... * asan.cc: ...here. * attribs.c: Moved to... * attribs.cc: ...here. * auto-inc-dec.c: Moved to... * auto-inc-dec.cc: ...here. * auto-profile.c: Moved to... * auto-profile.cc: ...here. * bb-reorder.c: Moved to... * bb-reorder.cc: ...here. * bitmap.c: Moved to... * bitmap.cc: ...here. * btfout.c: Moved to... * btfout.cc: ...here. * builtins.c: Moved to... * builtins.cc: ...here. * caller-save.c: Moved to... * caller-save.cc: ...here. * calls.c: Moved to... * calls.cc: ...here. * ccmp.c: Moved to... * ccmp.cc: ...here. * cfg.c: Moved to... * cfg.cc: ...here. * cfganal.c: Moved to... * cfganal.cc: ...here. * cfgbuild.c: Moved to... * cfgbuild.cc: ...here. * cfgcleanup.c: Moved to... * cfgcleanup.cc: ...here. * cfgexpand.c: Moved to... * cfgexpand.cc: ...here. * cfghooks.c: Moved to... * cfghooks.cc: ...here. * cfgloop.c: Moved to... * cfgloop.cc: ...here. * cfgloopanal.c: Moved to... * cfgloopanal.cc: ...here. * cfgloopmanip.c: Moved to... * cfgloopmanip.cc: ...here. * cfgrtl.c: Moved to... * cfgrtl.cc: ...here. * cgraph.c: Moved to... * cgraph.cc: ...here. * cgraphbuild.c: Moved to... * cgraphbuild.cc: ...here. * cgraphclones.c: Moved to... * cgraphclones.cc: ...here. * cgraphunit.c: Moved to... * cgraphunit.cc: ...here. * collect-utils.c: Moved to... * collect-utils.cc: ...here. * collect2-aix.c: Moved to... * collect2-aix.cc: ...here. * collect2.c: Moved to... * collect2.cc: ...here. * combine-stack-adj.c: Moved to... * combine-stack-adj.cc: ...here. * combine.c: Moved to... * combine.cc: ...here. * common/common-targhooks.c: Moved to... * common/common-targhooks.cc: ...here. * common/config/aarch64/aarch64-common.c: Moved to... * common/config/aarch64/aarch64-common.cc: ...here. * common/config/alpha/alpha-common.c: Moved to... * common/config/alpha/alpha-common.cc: ...here. * common/config/arc/arc-common.c: Moved to... * common/config/arc/arc-common.cc: ...here. * common/config/arm/arm-common.c: Moved to... * common/config/arm/arm-common.cc: ...here. * common/config/avr/avr-common.c: Moved to... * common/config/avr/avr-common.cc: ...here. * common/config/bfin/bfin-common.c: Moved to... * common/config/bfin/bfin-common.cc: ...here. * common/config/bpf/bpf-common.c: Moved to... * common/config/bpf/bpf-common.cc: ...here. * common/config/c6x/c6x-common.c: Moved to... * common/config/c6x/c6x-common.cc: ...here. * common/config/cr16/cr16-common.c: Moved to... * common/config/cr16/cr16-common.cc: ...here. * common/config/cris/cris-common.c: Moved to... * common/config/cris/cris-common.cc: ...here. * common/config/csky/csky-common.c: Moved to... * common/config/csky/csky-common.cc: ...here. * common/config/default-common.c: Moved to... * common/config/default-common.cc: ...here. * common/config/epiphany/epiphany-common.c: Moved to... * common/config/epiphany/epiphany-common.cc: ...here. * common/config/fr30/fr30-common.c: Moved to... * common/config/fr30/fr30-common.cc: ...here. * common/config/frv/frv-common.c: Moved to... * common/config/frv/frv-common.cc: ...here. * common/config/gcn/gcn-common.c: Moved to... * common/config/gcn/gcn-common.cc: ...here. * common/config/h8300/h8300-common.c: Moved to... * common/config/h8300/h8300-common.cc: ...here. * common/config/i386/i386-common.c: Moved to... * common/config/i386/i386-common.cc: ...here. * common/config/ia64/ia64-common.c: Moved to... * common/config/ia64/ia64-common.cc: ...here. * common/config/iq2000/iq2000-common.c: Moved to... * common/config/iq2000/iq2000-common.cc: ...here. * common/config/lm32/lm32-common.c: Moved to... * common/config/lm32/lm32-common.cc: ...here. * common/config/m32r/m32r-common.c: Moved to... * common/config/m32r/m32r-common.cc: ...here. * common/config/m68k/m68k-common.c: Moved to... * common/config/m68k/m68k-common.cc: ...here. * common/config/mcore/mcore-common.c: Moved to... * common/config/mcore/mcore-common.cc: ...here. * common/config/microblaze/microblaze-common.c: Moved to... * common/config/microblaze/microblaze-common.cc: ...here. * common/config/mips/mips-common.c: Moved to... * common/config/mips/mips-common.cc: ...here. * common/config/mmix/mmix-common.c: Moved to... * common/config/mmix/mmix-common.cc: ...here. * common/config/mn10300/mn10300-common.c: Moved to... * common/config/mn10300/mn10300-common.cc: ...here. * common/config/msp430/msp430-common.c: Moved to... * common/config/msp430/msp430-common.cc: ...here. * common/config/nds32/nds32-common.c: Moved to... * common/config/nds32/nds32-common.cc: ...here. * common/config/nios2/nios2-common.c: Moved to... * common/config/nios2/nios2-common.cc: ...here. * common/config/nvptx/nvptx-common.c: Moved to... * common/config/nvptx/nvptx-common.cc: ...here. * common/config/or1k/or1k-common.c: Moved to... * common/config/or1k/or1k-common.cc: ...here. * common/config/pa/pa-common.c: Moved to... * common/config/pa/pa-common.cc: ...here. * common/config/pdp11/pdp11-common.c: Moved to... * common/config/pdp11/pdp11-common.cc: ...here. * common/config/pru/pru-common.c: Moved to... * common/config/pru/pru-common.cc: ...here. * common/config/riscv/riscv-common.c: Moved to... * common/config/riscv/riscv-common.cc: ...here. * common/config/rs6000/rs6000-common.c: Moved to... * common/config/rs6000/rs6000-common.cc: ...here. * common/config/rx/rx-common.c: Moved to... * common/config/rx/rx-common.cc: ...here. * common/config/s390/s390-common.c: Moved to... * common/config/s390/s390-common.cc: ...here. * common/config/sh/sh-common.c: Moved to... * common/config/sh/sh-common.cc: ...here. * common/config/sparc/sparc-common.c: Moved to... * common/config/sparc/sparc-common.cc: ...here. * common/config/tilegx/tilegx-common.c: Moved to... * common/config/tilegx/tilegx-common.cc: ...here. * common/config/tilepro/tilepro-common.c: Moved to... * common/config/tilepro/tilepro-common.cc: ...here. * common/config/v850/v850-common.c: Moved to... * common/config/v850/v850-common.cc: ...here. * common/config/vax/vax-common.c: Moved to... * common/config/vax/vax-common.cc: ...here. * common/config/visium/visium-common.c: Moved to... * common/config/visium/visium-common.cc: ...here. * common/config/xstormy16/xstormy16-common.c: Moved to... * common/config/xstormy16/xstormy16-common.cc: ...here. * common/config/xtensa/xtensa-common.c: Moved to... * common/config/xtensa/xtensa-common.cc: ...here. * compare-elim.c: Moved to... * compare-elim.cc: ...here. * config/aarch64/aarch64-bti-insert.c: Moved to... * config/aarch64/aarch64-bti-insert.cc: ...here. * config/aarch64/aarch64-builtins.c: Moved to... * config/aarch64/aarch64-builtins.cc: ...here. * config/aarch64/aarch64-c.c: Moved to... * config/aarch64/aarch64-c.cc: ...here. * config/aarch64/aarch64-d.c: Moved to... * config/aarch64/aarch64-d.cc: ...here. * config/aarch64/aarch64.c: Moved to... * config/aarch64/aarch64.cc: ...here. * config/aarch64/cortex-a57-fma-steering.c: Moved to... * config/aarch64/cortex-a57-fma-steering.cc: ...here. * config/aarch64/driver-aarch64.c: Moved to... * config/aarch64/driver-aarch64.cc: ...here. * config/aarch64/falkor-tag-collision-avoidance.c: Moved to... * config/aarch64/falkor-tag-collision-avoidance.cc: ...here. * config/aarch64/host-aarch64-darwin.c: Moved to... * config/aarch64/host-aarch64-darwin.cc: ...here. * config/alpha/alpha.c: Moved to... * config/alpha/alpha.cc: ...here. * config/alpha/driver-alpha.c: Moved to... * config/alpha/driver-alpha.cc: ...here. * config/arc/arc-c.c: Moved to... * config/arc/arc-c.cc: ...here. * config/arc/arc.c: Moved to... * config/arc/arc.cc: ...here. * config/arc/driver-arc.c: Moved to... * config/arc/driver-arc.cc: ...here. * config/arm/aarch-common.c: Moved to... * config/arm/aarch-common.cc: ...here. * config/arm/arm-builtins.c: Moved to... * config/arm/arm-builtins.cc: ...here. * config/arm/arm-c.c: Moved to... * config/arm/arm-c.cc: ...here. * config/arm/arm-d.c: Moved to... * config/arm/arm-d.cc: ...here. * config/arm/arm.c: Moved to... * config/arm/arm.cc: ...here. * config/arm/driver-arm.c: Moved to... * config/arm/driver-arm.cc: ...here. * config/avr/avr-c.c: Moved to... * config/avr/avr-c.cc: ...here. * config/avr/avr-devices.c: Moved to... * config/avr/avr-devices.cc: ...here. * config/avr/avr-log.c: Moved to... * config/avr/avr-log.cc: ...here. * config/avr/avr.c: Moved to... * config/avr/avr.cc: ...here. * config/avr/driver-avr.c: Moved to... * config/avr/driver-avr.cc: ...here. * config/avr/gen-avr-mmcu-specs.c: Moved to... * config/avr/gen-avr-mmcu-specs.cc: ...here. * config/avr/gen-avr-mmcu-texi.c: Moved to... * config/avr/gen-avr-mmcu-texi.cc: ...here. * config/bfin/bfin.c: Moved to... * config/bfin/bfin.cc: ...here. * config/bpf/bpf.c: Moved to... * config/bpf/bpf.cc: ...here. * config/bpf/coreout.c: Moved to... * config/bpf/coreout.cc: ...here. * config/c6x/c6x.c: Moved to... * config/c6x/c6x.cc: ...here. * config/cr16/cr16.c: Moved to... * config/cr16/cr16.cc: ...here. * config/cris/cris.c: Moved to... * config/cris/cris.cc: ...here. * config/csky/csky.c: Moved to... * config/csky/csky.cc: ...here. * config/darwin-c.c: Moved to... * config/darwin-c.cc: ...here. * config/darwin-d.c: Moved to... * config/darwin-d.cc: ...here. * config/darwin-driver.c: Moved to... * config/darwin-driver.cc: ...here. * config/darwin-f.c: Moved to... * config/darwin-f.cc: ...here. * config/darwin.c: Moved to... * config/darwin.cc: ...here. * config/default-c.c: Moved to... * config/default-c.cc: ...here. * config/default-d.c: Moved to... * config/default-d.cc: ...here. * config/dragonfly-d.c: Moved to... * config/dragonfly-d.cc: ...here. * config/epiphany/epiphany.c: Moved to... * config/epiphany/epiphany.cc: ...here. * config/epiphany/mode-switch-use.c: Moved to... * config/epiphany/mode-switch-use.cc: ...here. * config/epiphany/resolve-sw-modes.c: Moved to... * config/epiphany/resolve-sw-modes.cc: ...here. * config/fr30/fr30.c: Moved to... * config/fr30/fr30.cc: ...here. * config/freebsd-d.c: Moved to... * config/freebsd-d.cc: ...here. * config/frv/frv.c: Moved to... * config/frv/frv.cc: ...here. * config/ft32/ft32.c: Moved to... * config/ft32/ft32.cc: ...here. * config/gcn/driver-gcn.c: Moved to... * config/gcn/driver-gcn.cc: ...here. * config/gcn/gcn-run.c: Moved to... * config/gcn/gcn-run.cc: ...here. * config/gcn/gcn-tree.c: Moved to... * config/gcn/gcn-tree.cc: ...here. * config/gcn/gcn.c: Moved to... * config/gcn/gcn.cc: ...here. * config/gcn/mkoffload.c: Moved to... * config/gcn/mkoffload.cc: ...here. * config/glibc-c.c: Moved to... * config/glibc-c.cc: ...here. * config/glibc-d.c: Moved to... * config/glibc-d.cc: ...here. * config/h8300/h8300.c: Moved to... * config/h8300/h8300.cc: ...here. * config/host-darwin.c: Moved to... * config/host-darwin.cc: ...here. * config/host-hpux.c: Moved to... * config/host-hpux.cc: ...here. * config/host-linux.c: Moved to... * config/host-linux.cc: ...here. * config/host-netbsd.c: Moved to... * config/host-netbsd.cc: ...here. * config/host-openbsd.c: Moved to... * config/host-openbsd.cc: ...here. * config/host-solaris.c: Moved to... * config/host-solaris.cc: ...here. * config/i386/djgpp.c: Moved to... * config/i386/djgpp.cc: ...here. * config/i386/driver-i386.c: Moved to... * config/i386/driver-i386.cc: ...here. * config/i386/driver-mingw32.c: Moved to... * config/i386/driver-mingw32.cc: ...here. * config/i386/gnu-property.c: Moved to... * config/i386/gnu-property.cc: ...here. * config/i386/host-cygwin.c: Moved to... * config/i386/host-cygwin.cc: ...here. * config/i386/host-i386-darwin.c: Moved to... * config/i386/host-i386-darwin.cc: ...here. * config/i386/host-mingw32.c: Moved to... * config/i386/host-mingw32.cc: ...here. * config/i386/i386-builtins.c: Moved to... * config/i386/i386-builtins.cc: ...here. * config/i386/i386-c.c: Moved to... * config/i386/i386-c.cc: ...here. * config/i386/i386-d.c: Moved to... * config/i386/i386-d.cc: ...here. * config/i386/i386-expand.c: Moved to... * config/i386/i386-expand.cc: ...here. * config/i386/i386-features.c: Moved to... * config/i386/i386-features.cc: ...here. * config/i386/i386-options.c: Moved to... * config/i386/i386-options.cc: ...here. * config/i386/i386.c: Moved to... * config/i386/i386.cc: ...here. * config/i386/intelmic-mkoffload.c: Moved to... * config/i386/intelmic-mkoffload.cc: ...here. * config/i386/msformat-c.c: Moved to... * config/i386/msformat-c.cc: ...here. * config/i386/winnt-cxx.c: Moved to... * config/i386/winnt-cxx.cc: ...here. * config/i386/winnt-d.c: Moved to... * config/i386/winnt-d.cc: ...here. * config/i386/winnt-stubs.c: Moved to... * config/i386/winnt-stubs.cc: ...here. * config/i386/winnt.c: Moved to... * config/i386/winnt.cc: ...here. * config/i386/x86-tune-sched-atom.c: 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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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Diffstat (limited to 'gcc/regrename.c')
-rw-r--r--gcc/regrename.c2031
1 files changed, 0 insertions, 2031 deletions
diff --git a/gcc/regrename.c b/gcc/regrename.c
deleted file mode 100644
index 10271e1..0000000
--- a/gcc/regrename.c
+++ /dev/null
@@ -1,2031 +0,0 @@
-/* Register renaming for the GNU compiler.
- Copyright (C) 2000-2022 Free Software Foundation, Inc.
-
- This file is part of GCC.
-
- GCC is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3, or (at your option)
- any later version.
-
- GCC is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
- License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GCC; see the file COPYING3. If not see
- <http://www.gnu.org/licenses/>. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "backend.h"
-#include "target.h"
-#include "rtl.h"
-#include "df.h"
-#include "memmodel.h"
-#include "tm_p.h"
-#include "insn-config.h"
-#include "regs.h"
-#include "emit-rtl.h"
-#include "recog.h"
-#include "addresses.h"
-#include "cfganal.h"
-#include "tree-pass.h"
-#include "function-abi.h"
-#include "regrename.h"
-
-/* This file implements the RTL register renaming pass of the compiler. It is
- a semi-local pass whose goal is to maximize the usage of the register file
- of the processor by substituting registers for others in the solution given
- by the register allocator. The algorithm is as follows:
-
- 1. Local def/use chains are built: within each basic block, chains are
- opened and closed; if a chain isn't closed at the end of the block,
- it is dropped. We pre-open chains if we have already examined a
- predecessor block and found chains live at the end which match
- live registers at the start of the new block.
-
- 2. We try to combine the local chains across basic block boundaries by
- comparing chains that were open at the start or end of a block to
- those in successor/predecessor blocks.
-
- 3. For each chain, the set of possible renaming registers is computed.
- This takes into account the renaming of previously processed chains.
- Optionally, a preferred class is computed for the renaming register.
-
- 4. The best renaming register is computed for the chain in the above set,
- using a round-robin allocation. If a preferred class exists, then the
- round-robin allocation is done within the class first, if possible.
- The round-robin allocation of renaming registers itself is global.
-
- 5. If a renaming register has been found, it is substituted in the chain.
-
- Targets can parameterize the pass by specifying a preferred class for the
- renaming register for a given (super)class of registers to be renamed.
-
- DEBUG_INSNs are treated specially, in particular registers occurring inside
- them are treated as requiring ALL_REGS as a class. */
-
-#if HOST_BITS_PER_WIDE_INT <= MAX_RECOG_OPERANDS
-#error "Use a different bitmap implementation for untracked_operands."
-#endif
-
-enum scan_actions
-{
- terminate_write,
- terminate_dead,
- mark_all_read,
- mark_read,
- mark_write,
- /* mark_access is for marking the destination regs in
- REG_FRAME_RELATED_EXPR notes (as if they were read) so that the
- note is updated properly. */
- mark_access
-};
-
-static const char * const scan_actions_name[] =
-{
- "terminate_write",
- "terminate_dead",
- "mark_all_read",
- "mark_read",
- "mark_write",
- "mark_access"
-};
-
-/* TICK and THIS_TICK are used to record the last time we saw each
- register. */
-static int tick[FIRST_PSEUDO_REGISTER];
-static int this_tick = 0;
-
-static struct obstack rename_obstack;
-
-/* If nonnull, the code calling into the register renamer requested
- information about insn operands, and we store it here. */
-vec<insn_rr_info> insn_rr;
-
-static void scan_rtx (rtx_insn *, rtx *, enum reg_class, enum scan_actions,
- enum op_type);
-static bool build_def_use (basic_block);
-
-/* The id to be given to the next opened chain. */
-static unsigned current_id;
-
-/* A mapping of unique id numbers to chains. */
-static vec<du_head_p> id_to_chain;
-
-/* List of currently open chains. */
-static class du_head *open_chains;
-
-/* Bitmap of open chains. The bits set always match the list found in
- open_chains. */
-static bitmap_head open_chains_set;
-
-/* Record the registers being tracked in open_chains. */
-static HARD_REG_SET live_in_chains;
-
-/* Record the registers that are live but not tracked. The intersection
- between this and live_in_chains is empty. */
-static HARD_REG_SET live_hard_regs;
-
-/* Set while scanning RTL if INSN_RR is nonnull, i.e. if the current analysis
- is for a caller that requires operand data. Used in
- record_operand_use. */
-static operand_rr_info *cur_operand;
-
-/* Set while scanning RTL if a register dies. Used to tie chains. */
-static class du_head *terminated_this_insn;
-
-/* Return the chain corresponding to id number ID. Take into account that
- chains may have been merged. */
-du_head_p
-regrename_chain_from_id (unsigned int id)
-{
- du_head_p first_chain = id_to_chain[id];
- du_head_p chain = first_chain;
- while (chain->id != id)
- {
- id = chain->id;
- chain = id_to_chain[id];
- }
- first_chain->id = id;
- return chain;
-}
-
-/* Dump all def/use chains, starting at id FROM. */
-
-static void
-dump_def_use_chain (int from)
-{
- du_head_p head;
- int i;
- FOR_EACH_VEC_ELT_FROM (id_to_chain, i, head, from)
- {
- struct du_chain *this_du = head->first;
-
- fprintf (dump_file, "Register %s (%d):",
- reg_names[head->regno], head->nregs);
- while (this_du)
- {
- fprintf (dump_file, " %d [%s]", INSN_UID (this_du->insn),
- reg_class_names[this_du->cl]);
- this_du = this_du->next_use;
- }
- fprintf (dump_file, "\n");
- head = head->next_chain;
- }
-}
-
-static void
-free_chain_data (void)
-{
- int i;
- du_head_p ptr;
- for (i = 0; id_to_chain.iterate (i, &ptr); i++)
- bitmap_clear (&ptr->conflicts);
-
- id_to_chain.release ();
-}
-
-/* Walk all chains starting with CHAINS and record that they conflict with
- another chain whose id is ID. */
-
-static void
-mark_conflict (class du_head *chains, unsigned id)
-{
- while (chains)
- {
- bitmap_set_bit (&chains->conflicts, id);
- chains = chains->next_chain;
- }
-}
-
-/* Examine cur_operand, and if it is nonnull, record information about the
- use THIS_DU which is part of the chain HEAD. */
-
-static void
-record_operand_use (class du_head *head, struct du_chain *this_du)
-{
- if (cur_operand == NULL || cur_operand->failed)
- return;
- if (head->cannot_rename)
- {
- cur_operand->failed = true;
- return;
- }
- gcc_assert (cur_operand->n_chains < MAX_REGS_PER_ADDRESS);
- cur_operand->heads[cur_operand->n_chains] = head;
- cur_operand->chains[cur_operand->n_chains++] = this_du;
-}
-
-/* Create a new chain for THIS_NREGS registers starting at THIS_REGNO,
- and record its occurrence in *LOC, which is being written to in INSN.
- This access requires a register of class CL. */
-
-static du_head_p
-create_new_chain (unsigned this_regno, unsigned this_nregs, rtx *loc,
- rtx_insn *insn, enum reg_class cl)
-{
- class du_head *head = XOBNEW (&rename_obstack, class du_head);
- struct du_chain *this_du;
- int nregs;
-
- memset ((void *)head, 0, sizeof *head);
- head->next_chain = open_chains;
- head->regno = this_regno;
- head->nregs = this_nregs;
-
- id_to_chain.safe_push (head);
- head->id = current_id++;
-
- bitmap_initialize (&head->conflicts, &bitmap_default_obstack);
- bitmap_copy (&head->conflicts, &open_chains_set);
- mark_conflict (open_chains, head->id);
-
- /* Since we're tracking this as a chain now, remove it from the
- list of conflicting live hard registers and track it in
- live_in_chains instead. */
- nregs = head->nregs;
- while (nregs-- > 0)
- {
- SET_HARD_REG_BIT (live_in_chains, head->regno + nregs);
- CLEAR_HARD_REG_BIT (live_hard_regs, head->regno + nregs);
- }
-
- head->hard_conflicts = live_hard_regs;
- bitmap_set_bit (&open_chains_set, head->id);
-
- open_chains = head;
-
- if (dump_file)
- {
- fprintf (dump_file, "Creating chain %s (%d)",
- reg_names[head->regno], head->id);
- if (insn != NULL_RTX)
- fprintf (dump_file, " at insn %d", INSN_UID (insn));
- fprintf (dump_file, "\n");
- }
-
- if (insn == NULL_RTX)
- {
- head->first = head->last = NULL;
- return head;
- }
-
- this_du = XOBNEW (&rename_obstack, struct du_chain);
- head->first = head->last = this_du;
-
- this_du->next_use = 0;
- this_du->loc = loc;
- this_du->insn = insn;
- this_du->cl = cl;
- record_operand_use (head, this_du);
- return head;
-}
-
-/* For a def-use chain HEAD, find which registers overlap its lifetime and
- set the corresponding bits in *PSET. */
-
-static void
-merge_overlapping_regs (HARD_REG_SET *pset, class du_head *head)
-{
- bitmap_iterator bi;
- unsigned i;
- *pset |= head->hard_conflicts;
- EXECUTE_IF_SET_IN_BITMAP (&head->conflicts, 0, i, bi)
- {
- du_head_p other = regrename_chain_from_id (i);
- unsigned j = other->nregs;
- gcc_assert (other != head);
- while (j-- > 0)
- SET_HARD_REG_BIT (*pset, other->regno + j);
- }
-}
-
-/* Return true if (reg:MODE REGNO) would be clobbered by a call covered
- by THIS_HEAD. */
-
-static bool
-call_clobbered_in_chain_p (du_head *this_head, machine_mode mode,
- unsigned int regno)
-{
- return call_clobbered_in_region_p (this_head->call_abis,
- this_head->call_clobber_mask,
- mode, regno);
-}
-
-/* Check if NEW_REG can be the candidate register to rename for
- REG in THIS_HEAD chain. THIS_UNAVAILABLE is a set of unavailable hard
- registers. */
-
-static bool
-check_new_reg_p (int reg ATTRIBUTE_UNUSED, int new_reg,
- class du_head *this_head, HARD_REG_SET this_unavailable)
-{
- machine_mode mode = GET_MODE (*this_head->first->loc);
- int nregs = hard_regno_nregs (new_reg, mode);
- int i;
- struct du_chain *tmp;
-
- for (i = nregs - 1; i >= 0; --i)
- if (TEST_HARD_REG_BIT (this_unavailable, new_reg + i)
- || fixed_regs[new_reg + i]
- || global_regs[new_reg + i]
- /* Can't use regs which aren't saved by the prologue. */
- || (! df_regs_ever_live_p (new_reg + i)
- && ! crtl->abi->clobbers_full_reg_p (new_reg + i))
-#ifdef LEAF_REGISTERS
- /* We can't use a non-leaf register if we're in a
- leaf function. */
- || (crtl->is_leaf
- && !LEAF_REGISTERS[new_reg + i])
-#endif
- || ! HARD_REGNO_RENAME_OK (reg + i, new_reg + i))
- return false;
-
- /* See whether it accepts all modes that occur in
- definition and uses. */
- for (tmp = this_head->first; tmp; tmp = tmp->next_use)
- {
- /* Completely ignore DEBUG_INSNs, otherwise we can get
- -fcompare-debug failures. */
- if (DEBUG_INSN_P (tmp->insn))
- continue;
-
- if (!targetm.hard_regno_mode_ok (new_reg, GET_MODE (*tmp->loc))
- || call_clobbered_in_chain_p (this_head, GET_MODE (*tmp->loc),
- new_reg))
- return false;
- }
-
- return true;
-}
-
-/* For the chain THIS_HEAD, compute and return the best register to
- rename to. SUPER_CLASS is the superunion of register classes in
- the chain. UNAVAILABLE is a set of registers that cannot be used.
- OLD_REG is the register currently used for the chain. BEST_RENAME
- controls whether the register chosen must be better than the
- current one or just respect the given constraint. */
-
-int
-find_rename_reg (du_head_p this_head, enum reg_class super_class,
- HARD_REG_SET *unavailable, int old_reg, bool best_rename)
-{
- bool has_preferred_class;
- enum reg_class preferred_class;
- int pass;
- int best_new_reg = old_reg;
-
- /* Mark registers that overlap this chain's lifetime as unavailable. */
- merge_overlapping_regs (unavailable, this_head);
-
- /* Compute preferred rename class of super union of all the classes
- in the chain. */
- preferred_class
- = (enum reg_class) targetm.preferred_rename_class (super_class);
-
- /* Pick and check the register from the tied chain iff the tied chain
- is not renamed. */
- if (this_head->tied_chain && !this_head->tied_chain->renamed
- && check_new_reg_p (old_reg, this_head->tied_chain->regno,
- this_head, *unavailable))
- return this_head->tied_chain->regno;
-
- /* If the first non-debug insn is a noop move, then do not rename in this
- chain as doing so would inhibit removal of the noop move. */
- for (struct du_chain *tmp = this_head->first; tmp; tmp = tmp->next_use)
- if (DEBUG_INSN_P (tmp->insn))
- continue;
- else if (noop_move_p (tmp->insn))
- return best_new_reg;
- else
- break;
-
- /* If PREFERRED_CLASS is not NO_REGS, we iterate in the first pass
- over registers that belong to PREFERRED_CLASS and try to find the
- best register within the class. If that failed, we iterate in
- the second pass over registers that don't belong to the class.
- If PREFERRED_CLASS is NO_REGS, we iterate over all registers in
- ascending order without any preference. */
- has_preferred_class = (preferred_class != NO_REGS);
- for (pass = (has_preferred_class ? 0 : 1); pass < 2; pass++)
- {
- int new_reg;
- for (new_reg = 0; new_reg < FIRST_PSEUDO_REGISTER; new_reg++)
- {
- if (has_preferred_class
- && (pass == 0)
- != TEST_HARD_REG_BIT (reg_class_contents[preferred_class],
- new_reg))
- continue;
-
- if (!check_new_reg_p (old_reg, new_reg, this_head, *unavailable))
- continue;
-
- if (!best_rename)
- return new_reg;
-
- /* In the first pass, we force the renaming of registers that
- don't belong to PREFERRED_CLASS to registers that do, even
- though the latters were used not very long ago. */
- if ((pass == 0
- && !TEST_HARD_REG_BIT (reg_class_contents[preferred_class],
- best_new_reg))
- || tick[best_new_reg] > tick[new_reg])
- best_new_reg = new_reg;
- }
- if (pass == 0 && best_new_reg != old_reg)
- break;
- }
- return best_new_reg;
-}
-
-/* Iterate over elements in the chain HEAD in order to:
- 1. Count number of uses, storing it in *PN_USES.
- 2. Narrow the set of registers we can use for renaming, adding
- unavailable registers to *PUNAVAILABLE, which must be
- initialized by the caller.
- 3. Compute the superunion of register classes in this chain
- and return it. */
-reg_class
-regrename_find_superclass (du_head_p head, int *pn_uses,
- HARD_REG_SET *punavailable)
-{
- int n_uses = 0;
- reg_class super_class = NO_REGS;
- for (du_chain *tmp = head->first; tmp; tmp = tmp->next_use)
- {
- if (DEBUG_INSN_P (tmp->insn))
- continue;
- n_uses++;
- *punavailable |= ~reg_class_contents[tmp->cl];
- super_class
- = reg_class_superunion[(int) super_class][(int) tmp->cl];
- }
- *pn_uses = n_uses;
- return super_class;
-}
-
-/* Perform register renaming on the current function. */
-static void
-rename_chains (void)
-{
- HARD_REG_SET unavailable;
- du_head_p this_head;
- int i;
-
- memset (tick, 0, sizeof tick);
-
- CLEAR_HARD_REG_SET (unavailable);
- /* Don't clobber traceback for noreturn functions. */
- if (frame_pointer_needed)
- {
- add_to_hard_reg_set (&unavailable, Pmode, FRAME_POINTER_REGNUM);
- if (!HARD_FRAME_POINTER_IS_FRAME_POINTER)
- add_to_hard_reg_set (&unavailable, Pmode, HARD_FRAME_POINTER_REGNUM);
- }
-
- FOR_EACH_VEC_ELT (id_to_chain, i, this_head)
- {
- int best_new_reg;
- int n_uses;
- HARD_REG_SET this_unavailable;
- int reg = this_head->regno;
-
- if (this_head->cannot_rename)
- continue;
-
- if (fixed_regs[reg] || global_regs[reg]
- || (!HARD_FRAME_POINTER_IS_FRAME_POINTER && frame_pointer_needed
- && reg == HARD_FRAME_POINTER_REGNUM)
- || (HARD_FRAME_POINTER_IS_FRAME_POINTER && frame_pointer_needed
- && reg == FRAME_POINTER_REGNUM))
- continue;
-
- this_unavailable = unavailable;
-
- reg_class super_class = regrename_find_superclass (this_head, &n_uses,
- &this_unavailable);
- if (n_uses < 2)
- continue;
-
- best_new_reg = find_rename_reg (this_head, super_class,
- &this_unavailable, reg, true);
-
- if (dump_file)
- {
- fprintf (dump_file, "Register %s in insn %d",
- reg_names[reg], INSN_UID (this_head->first->insn));
- if (this_head->call_abis)
- fprintf (dump_file, " crosses a call");
- }
-
- if (best_new_reg == reg)
- {
- tick[reg] = ++this_tick;
- if (dump_file)
- fprintf (dump_file, "; no available better choice\n");
- continue;
- }
-
- if (regrename_do_replace (this_head, best_new_reg))
- {
- if (dump_file)
- fprintf (dump_file, ", renamed as %s\n", reg_names[best_new_reg]);
- tick[best_new_reg] = ++this_tick;
- df_set_regs_ever_live (best_new_reg, true);
- }
- else
- {
- if (dump_file)
- fprintf (dump_file, ", renaming as %s failed\n",
- reg_names[best_new_reg]);
- tick[reg] = ++this_tick;
- }
- }
-}
-
-/* A structure to record information for each hard register at the start of
- a basic block. */
-struct incoming_reg_info {
- /* Holds the number of registers used in the chain that gave us information
- about this register. Zero means no information known yet, while a
- negative value is used for something that is part of, but not the first
- register in a multi-register value. */
- int nregs;
- /* Set to true if we have accesses that conflict in the number of registers
- used. */
- bool unusable;
-};
-
-/* A structure recording information about each basic block. It is saved
- and restored around basic block boundaries.
- A pointer to such a structure is stored in each basic block's aux field
- during regrename_analyze, except for blocks we know can't be optimized
- (such as entry and exit blocks). */
-class bb_rename_info
-{
-public:
- /* The basic block corresponding to this structure. */
- basic_block bb;
- /* Copies of the global information. */
- bitmap_head open_chains_set;
- bitmap_head incoming_open_chains_set;
- struct incoming_reg_info incoming[FIRST_PSEUDO_REGISTER];
-};
-
-/* Initialize a rename_info structure P for basic block BB, which starts a new
- scan. */
-static void
-init_rename_info (class bb_rename_info *p, basic_block bb)
-{
- int i;
- df_ref def;
- HARD_REG_SET start_chains_set;
-
- p->bb = bb;
- bitmap_initialize (&p->open_chains_set, &bitmap_default_obstack);
- bitmap_initialize (&p->incoming_open_chains_set, &bitmap_default_obstack);
-
- open_chains = NULL;
- bitmap_clear (&open_chains_set);
-
- CLEAR_HARD_REG_SET (live_in_chains);
- REG_SET_TO_HARD_REG_SET (live_hard_regs, df_get_live_in (bb));
- FOR_EACH_ARTIFICIAL_DEF (def, bb->index)
- if (DF_REF_FLAGS (def) & DF_REF_AT_TOP)
- SET_HARD_REG_BIT (live_hard_regs, DF_REF_REGNO (def));
-
- /* Open chains based on information from (at least one) predecessor
- block. This gives us a chance later on to combine chains across
- basic block boundaries. Inconsistencies (in access sizes) will
- be caught normally and dealt with conservatively by disabling the
- chain for renaming, and there is no risk of losing optimization
- opportunities by opening chains either: if we did not open the
- chains, we'd have to track the live register as a hard reg, and
- we'd be unable to rename it in any case. */
- CLEAR_HARD_REG_SET (start_chains_set);
- for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
- {
- struct incoming_reg_info *iri = p->incoming + i;
- if (iri->nregs > 0 && !iri->unusable
- && range_in_hard_reg_set_p (live_hard_regs, i, iri->nregs))
- {
- SET_HARD_REG_BIT (start_chains_set, i);
- remove_range_from_hard_reg_set (&live_hard_regs, i, iri->nregs);
- }
- }
- for (i = 0; i < FIRST_PSEUDO_REGISTER; i++)
- {
- struct incoming_reg_info *iri = p->incoming + i;
- if (TEST_HARD_REG_BIT (start_chains_set, i))
- {
- du_head_p chain;
- if (dump_file)
- fprintf (dump_file, "opening incoming chain\n");
- chain = create_new_chain (i, iri->nregs, NULL, NULL, NO_REGS);
- bitmap_set_bit (&p->incoming_open_chains_set, chain->id);
- }
- }
-}
-
-/* Record in RI that the block corresponding to it has an incoming
- live value, described by CHAIN. */
-static void
-set_incoming_from_chain (class bb_rename_info *ri, du_head_p chain)
-{
- int i;
- int incoming_nregs = ri->incoming[chain->regno].nregs;
- int nregs;
-
- /* If we've recorded the same information before, everything is fine. */
- if (incoming_nregs == chain->nregs)
- {
- if (dump_file)
- fprintf (dump_file, "reg %d/%d already recorded\n",
- chain->regno, chain->nregs);
- return;
- }
-
- /* If we have no information for any of the involved registers, update
- the incoming array. */
- nregs = chain->nregs;
- while (nregs-- > 0)
- if (ri->incoming[chain->regno + nregs].nregs != 0
- || ri->incoming[chain->regno + nregs].unusable)
- break;
- if (nregs < 0)
- {
- nregs = chain->nregs;
- ri->incoming[chain->regno].nregs = nregs;
- while (nregs-- > 1)
- ri->incoming[chain->regno + nregs].nregs = -nregs;
- if (dump_file)
- fprintf (dump_file, "recorded reg %d/%d\n",
- chain->regno, chain->nregs);
- return;
- }
-
- /* There must be some kind of conflict. Prevent both the old and
- new ranges from being used. */
- if (incoming_nregs < 0)
- ri->incoming[chain->regno + incoming_nregs].unusable = true;
- for (i = 0; i < chain->nregs; i++)
- ri->incoming[chain->regno + i].unusable = true;
-}
-
-/* Merge the two chains C1 and C2 so that all conflict information is
- recorded and C1, and the id of C2 is changed to that of C1. */
-static void
-merge_chains (du_head_p c1, du_head_p c2)
-{
- if (c1 == c2)
- return;
-
- if (c2->first != NULL)
- {
- if (c1->first == NULL)
- c1->first = c2->first;
- else
- c1->last->next_use = c2->first;
- c1->last = c2->last;
- }
-
- c2->first = c2->last = NULL;
- c2->id = c1->id;
-
- c1->hard_conflicts |= c2->hard_conflicts;
- bitmap_ior_into (&c1->conflicts, &c2->conflicts);
-
- c1->call_clobber_mask |= c2->call_clobber_mask;
- c1->call_abis |= c2->call_abis;
- c1->cannot_rename |= c2->cannot_rename;
-}
-
-/* Analyze the current function and build chains for renaming.
- If INCLUDE_ALL_BLOCKS_P is set to true, process all blocks,
- ignoring BB_DISABLE_SCHEDULE. The default value is true. */
-
-void
-regrename_analyze (bitmap bb_mask, bool include_all_block_p)
-{
- class bb_rename_info *rename_info;
- int i;
- basic_block bb;
- int n_bbs;
- int *inverse_postorder;
-
- inverse_postorder = XNEWVEC (int, last_basic_block_for_fn (cfun));
- n_bbs = pre_and_rev_post_order_compute (NULL, inverse_postorder, false);
-
- /* Gather some information about the blocks in this function. */
- rename_info = XCNEWVEC (class bb_rename_info, n_basic_blocks_for_fn (cfun));
- i = 0;
- FOR_EACH_BB_FN (bb, cfun)
- {
- class bb_rename_info *ri = rename_info + i;
- ri->bb = bb;
- if (bb_mask != NULL && !bitmap_bit_p (bb_mask, bb->index))
- bb->aux = NULL;
- else
- bb->aux = ri;
- i++;
- }
-
- current_id = 0;
- id_to_chain.create (0);
- bitmap_initialize (&open_chains_set, &bitmap_default_obstack);
-
- /* The order in which we visit blocks ensures that whenever
- possible, we only process a block after at least one of its
- predecessors, which provides a "seeding" effect to make the logic
- in set_incoming_from_chain and init_rename_info useful. */
-
- for (i = 0; i < n_bbs; i++)
- {
- basic_block bb1 = BASIC_BLOCK_FOR_FN (cfun, inverse_postorder[i]);
- class bb_rename_info *this_info;
- bool success;
- edge e;
- edge_iterator ei;
- int old_length = id_to_chain.length ();
-
- this_info = (class bb_rename_info *) bb1->aux;
- if (this_info == NULL)
- continue;
-
- if (dump_file)
- fprintf (dump_file, "\nprocessing block %d:\n", bb1->index);
-
- if (!include_all_block_p && (bb1->flags & BB_DISABLE_SCHEDULE) != 0)
- {
- if (dump_file)
- fprintf (dump_file, "avoid disrupting the sms schedule of bb %d\n",
- bb1->index);
- continue;
- }
-
- init_rename_info (this_info, bb1);
-
- success = build_def_use (bb1);
- if (!success)
- {
- if (dump_file)
- fprintf (dump_file, "failed\n");
- bb1->aux = NULL;
- id_to_chain.truncate (old_length);
- current_id = old_length;
- bitmap_clear (&this_info->incoming_open_chains_set);
- open_chains = NULL;
- if (insn_rr.exists ())
- {
- rtx_insn *insn;
- FOR_BB_INSNS (bb1, insn)
- {
- insn_rr_info *p = &insn_rr[INSN_UID (insn)];
- p->op_info = NULL;
- }
- }
- continue;
- }
-
- if (dump_file)
- dump_def_use_chain (old_length);
- bitmap_copy (&this_info->open_chains_set, &open_chains_set);
-
- /* Add successor blocks to the worklist if necessary, and record
- data about our own open chains at the end of this block, which
- will be used to pre-open chains when processing the successors. */
- FOR_EACH_EDGE (e, ei, bb1->succs)
- {
- class bb_rename_info *dest_ri;
- class du_head *chain;
-
- if (dump_file)
- fprintf (dump_file, "successor block %d\n", e->dest->index);
-
- if (e->flags & (EDGE_EH | EDGE_ABNORMAL))
- continue;
- dest_ri = (class bb_rename_info *)e->dest->aux;
- if (dest_ri == NULL)
- continue;
- for (chain = open_chains; chain; chain = chain->next_chain)
- set_incoming_from_chain (dest_ri, chain);
- }
- }
-
- free (inverse_postorder);
-
- /* Now, combine the chains data we have gathered across basic block
- boundaries.
-
- For every basic block, there may be chains open at the start, or at the
- end. Rather than exclude them from renaming, we look for open chains
- with matching registers at the other side of the CFG edge.
-
- For a given chain using register R, open at the start of block B, we
- must find an open chain using R on the other side of every edge leading
- to B, if the register is live across this edge. In the code below,
- N_PREDS_USED counts the number of edges where the register is live, and
- N_PREDS_JOINED counts those where we found an appropriate chain for
- joining.
-
- We perform the analysis for both incoming and outgoing edges, but we
- only need to merge once (in the second part, after verifying outgoing
- edges). */
- FOR_EACH_BB_FN (bb, cfun)
- {
- class bb_rename_info *bb_ri = (class bb_rename_info *) bb->aux;
- unsigned j;
- bitmap_iterator bi;
-
- if (bb_ri == NULL)
- continue;
-
- if (dump_file)
- fprintf (dump_file, "processing bb %d in edges\n", bb->index);
-
- EXECUTE_IF_SET_IN_BITMAP (&bb_ri->incoming_open_chains_set, 0, j, bi)
- {
- edge e;
- edge_iterator ei;
- class du_head *chain = regrename_chain_from_id (j);
- int n_preds_used = 0, n_preds_joined = 0;
-
- FOR_EACH_EDGE (e, ei, bb->preds)
- {
- class bb_rename_info *src_ri;
- unsigned k;
- bitmap_iterator bi2;
- HARD_REG_SET live;
- bool success = false;
-
- REG_SET_TO_HARD_REG_SET (live, df_get_live_out (e->src));
- if (!range_overlaps_hard_reg_set_p (live, chain->regno,
- chain->nregs))
- continue;
- n_preds_used++;
-
- if (e->flags & (EDGE_EH | EDGE_ABNORMAL))
- continue;
-
- src_ri = (class bb_rename_info *)e->src->aux;
- if (src_ri == NULL)
- continue;
-
- EXECUTE_IF_SET_IN_BITMAP (&src_ri->open_chains_set,
- 0, k, bi2)
- {
- class du_head *outgoing_chain = regrename_chain_from_id (k);
-
- if (outgoing_chain->regno == chain->regno
- && outgoing_chain->nregs == chain->nregs)
- {
- n_preds_joined++;
- success = true;
- break;
- }
- }
- if (!success && dump_file)
- fprintf (dump_file, "failure to match with pred block %d\n",
- e->src->index);
- }
- if (n_preds_joined < n_preds_used)
- {
- if (dump_file)
- fprintf (dump_file, "cannot rename chain %d\n", j);
- chain->cannot_rename = 1;
- }
- }
- }
- FOR_EACH_BB_FN (bb, cfun)
- {
- class bb_rename_info *bb_ri = (class bb_rename_info *) bb->aux;
- unsigned j;
- bitmap_iterator bi;
-
- if (bb_ri == NULL)
- continue;
-
- if (dump_file)
- fprintf (dump_file, "processing bb %d out edges\n", bb->index);
-
- EXECUTE_IF_SET_IN_BITMAP (&bb_ri->open_chains_set, 0, j, bi)
- {
- edge e;
- edge_iterator ei;
- class du_head *chain = regrename_chain_from_id (j);
- int n_succs_used = 0, n_succs_joined = 0;
-
- FOR_EACH_EDGE (e, ei, bb->succs)
- {
- bool printed = false;
- class bb_rename_info *dest_ri;
- unsigned k;
- bitmap_iterator bi2;
- HARD_REG_SET live;
-
- REG_SET_TO_HARD_REG_SET (live, df_get_live_in (e->dest));
- if (!range_overlaps_hard_reg_set_p (live, chain->regno,
- chain->nregs))
- continue;
-
- n_succs_used++;
-
- dest_ri = (class bb_rename_info *)e->dest->aux;
- if (dest_ri == NULL)
- continue;
-
- EXECUTE_IF_SET_IN_BITMAP (&dest_ri->incoming_open_chains_set,
- 0, k, bi2)
- {
- class du_head *incoming_chain = regrename_chain_from_id (k);
-
- if (incoming_chain->regno == chain->regno
- && incoming_chain->nregs == chain->nregs)
- {
- if (dump_file)
- {
- if (!printed)
- fprintf (dump_file,
- "merging blocks for edge %d -> %d\n",
- e->src->index, e->dest->index);
- printed = true;
- fprintf (dump_file,
- " merging chains %d (->%d) and %d (->%d) [%s]\n",
- k, incoming_chain->id, j, chain->id,
- reg_names[incoming_chain->regno]);
- }
-
- merge_chains (chain, incoming_chain);
- n_succs_joined++;
- break;
- }
- }
- }
- if (n_succs_joined < n_succs_used)
- {
- if (dump_file)
- fprintf (dump_file, "cannot rename chain %d\n",
- j);
- chain->cannot_rename = 1;
- }
- }
- }
-
- free (rename_info);
-
- FOR_EACH_BB_FN (bb, cfun)
- bb->aux = NULL;
-}
-
-/* Attempt to replace all uses of the register in the chain beginning with
- HEAD with REG. Returns true on success and false if the replacement is
- rejected because the insns would not validate. The latter can happen
- e.g. if a match_parallel predicate enforces restrictions on register
- numbering in its subpatterns. */
-
-bool
-regrename_do_replace (class du_head *head, int reg)
-{
- struct du_chain *chain;
- unsigned int base_regno = head->regno;
- machine_mode mode;
- rtx last_reg = NULL_RTX, last_repl = NULL_RTX;
-
- for (chain = head->first; chain; chain = chain->next_use)
- {
- unsigned int regno = ORIGINAL_REGNO (*chain->loc);
- class reg_attrs *attr = REG_ATTRS (*chain->loc);
- int reg_ptr = REG_POINTER (*chain->loc);
-
- if (DEBUG_INSN_P (chain->insn) && REGNO (*chain->loc) != base_regno)
- validate_change (chain->insn, &(INSN_VAR_LOCATION_LOC (chain->insn)),
- gen_rtx_UNKNOWN_VAR_LOC (), true);
- else
- {
- if (*chain->loc != last_reg)
- {
- last_repl = gen_raw_REG (GET_MODE (*chain->loc), reg);
- if (regno >= FIRST_PSEUDO_REGISTER)
- ORIGINAL_REGNO (last_repl) = regno;
- REG_ATTRS (last_repl) = attr;
- REG_POINTER (last_repl) = reg_ptr;
- last_reg = *chain->loc;
- }
- validate_change (chain->insn, chain->loc, last_repl, true);
- }
- }
-
- if (!apply_change_group ())
- return false;
-
- mode = GET_MODE (*head->first->loc);
- head->renamed = 1;
- head->regno = reg;
- head->nregs = hard_regno_nregs (reg, mode);
- return true;
-}
-
-
-/* True if we found a register with a size mismatch, which means that we
- can't track its lifetime accurately. If so, we abort the current block
- without renaming. */
-static bool fail_current_block;
-
-/* Return true if OP is a reg for which all bits are set in PSET, false
- if all bits are clear.
- In other cases, set fail_current_block and return false. */
-
-static bool
-verify_reg_in_set (rtx op, HARD_REG_SET *pset)
-{
- unsigned regno, nregs;
- bool all_live, all_dead;
- if (!REG_P (op))
- return false;
-
- regno = REGNO (op);
- nregs = REG_NREGS (op);
- all_live = all_dead = true;
- while (nregs-- > 0)
- if (TEST_HARD_REG_BIT (*pset, regno + nregs))
- all_dead = false;
- else
- all_live = false;
- if (!all_dead && !all_live)
- {
- fail_current_block = true;
- return false;
- }
- return all_live;
-}
-
-/* Return true if OP is a reg that is being tracked already in some form.
- May set fail_current_block if it sees an unhandled case of overlap. */
-
-static bool
-verify_reg_tracked (rtx op)
-{
- return (verify_reg_in_set (op, &live_hard_regs)
- || verify_reg_in_set (op, &live_in_chains));
-}
-
-/* Called through note_stores. DATA points to a rtx_code, either SET or
- CLOBBER, which tells us which kind of rtx to look at. If we have a
- match, record the set register in live_hard_regs and in the hard_conflicts
- bitmap of open chains. */
-
-static void
-note_sets_clobbers (rtx x, const_rtx set, void *data)
-{
- enum rtx_code code = *(enum rtx_code *)data;
- class du_head *chain;
-
- if (GET_CODE (x) == SUBREG)
- x = SUBREG_REG (x);
- if (!REG_P (x) || GET_CODE (set) != code)
- return;
- /* There must not be pseudos at this point. */
- gcc_assert (HARD_REGISTER_P (x));
- add_to_hard_reg_set (&live_hard_regs, GET_MODE (x), REGNO (x));
- for (chain = open_chains; chain; chain = chain->next_chain)
- add_to_hard_reg_set (&chain->hard_conflicts, GET_MODE (x), REGNO (x));
-}
-
-static void
-scan_rtx_reg (rtx_insn *insn, rtx *loc, enum reg_class cl, enum scan_actions action,
- enum op_type type)
-{
- class du_head **p;
- rtx x = *loc;
- unsigned this_regno = REGNO (x);
- int this_nregs = REG_NREGS (x);
-
- if (action == mark_write)
- {
- if (type == OP_OUT)
- {
- du_head_p c;
- rtx pat = PATTERN (insn);
-
- c = create_new_chain (this_regno, this_nregs, loc, insn, cl);
-
- /* We try to tie chains in a move instruction for
- a single output. */
- if (recog_data.n_operands == 2
- && GET_CODE (pat) == SET
- && GET_CODE (SET_DEST (pat)) == REG
- && GET_CODE (SET_SRC (pat)) == REG
- && terminated_this_insn
- && terminated_this_insn->nregs
- == REG_NREGS (recog_data.operand[1]))
- {
- gcc_assert (terminated_this_insn->regno
- == REGNO (recog_data.operand[1]));
-
- c->tied_chain = terminated_this_insn;
- terminated_this_insn->tied_chain = c;
-
- if (dump_file)
- fprintf (dump_file, "Tying chain %s (%d) with %s (%d)\n",
- reg_names[c->regno], c->id,
- reg_names[terminated_this_insn->regno],
- terminated_this_insn->id);
- }
- }
-
- return;
- }
-
- if ((type == OP_OUT) != (action == terminate_write || action == mark_access))
- return;
-
- for (p = &open_chains; *p;)
- {
- class du_head *head = *p;
- class du_head *next = head->next_chain;
- int exact_match = (head->regno == this_regno
- && head->nregs == this_nregs);
- int superset = (this_regno <= head->regno
- && this_regno + this_nregs >= head->regno + head->nregs);
- int subset = (this_regno >= head->regno
- && this_regno + this_nregs <= head->regno + head->nregs);
-
- if (!bitmap_bit_p (&open_chains_set, head->id)
- || head->regno + head->nregs <= this_regno
- || this_regno + this_nregs <= head->regno)
- {
- p = &head->next_chain;
- continue;
- }
-
- if (action == mark_read || action == mark_access)
- {
- /* ??? Class NO_REGS can happen if the md file makes use of
- EXTRA_CONSTRAINTS to match registers. Which is arguably
- wrong, but there we are. */
-
- if (cl == NO_REGS || (!exact_match && !DEBUG_INSN_P (insn)))
- {
- if (dump_file)
- fprintf (dump_file,
- "Cannot rename chain %s (%d) at insn %d (%s)\n",
- reg_names[head->regno], head->id, INSN_UID (insn),
- scan_actions_name[(int) action]);
- head->cannot_rename = 1;
- if (superset)
- {
- unsigned nregs = this_nregs;
- head->regno = this_regno;
- head->nregs = this_nregs;
- while (nregs-- > 0)
- SET_HARD_REG_BIT (live_in_chains, head->regno + nregs);
- if (dump_file)
- fprintf (dump_file,
- "Widening register in chain %s (%d) at insn %d\n",
- reg_names[head->regno], head->id, INSN_UID (insn));
- }
- else if (!subset)
- {
- fail_current_block = true;
- if (dump_file)
- fprintf (dump_file,
- "Failing basic block due to unhandled overlap\n");
- }
- }
- else
- {
- struct du_chain *this_du;
- this_du = XOBNEW (&rename_obstack, struct du_chain);
- this_du->next_use = 0;
- this_du->loc = loc;
- this_du->insn = insn;
- this_du->cl = cl;
- if (head->first == NULL)
- head->first = this_du;
- else
- head->last->next_use = this_du;
- record_operand_use (head, this_du);
- head->last = this_du;
- }
- /* Avoid adding the same location in a DEBUG_INSN multiple times,
- which could happen with non-exact overlap. */
- if (DEBUG_INSN_P (insn))
- return;
- /* Otherwise, find any other chains that do not match exactly;
- ensure they all get marked unrenamable. */
- p = &head->next_chain;
- continue;
- }
-
- /* Whether the terminated chain can be used for renaming
- depends on the action and this being an exact match.
- In either case, we remove this element from open_chains. */
-
- if ((action == terminate_dead || action == terminate_write)
- && (superset || subset))
- {
- unsigned nregs;
-
- if (subset && !superset)
- head->cannot_rename = 1;
- bitmap_clear_bit (&open_chains_set, head->id);
-
- nregs = head->nregs;
- while (nregs-- > 0)
- {
- CLEAR_HARD_REG_BIT (live_in_chains, head->regno + nregs);
- if (subset && !superset
- && (head->regno + nregs < this_regno
- || head->regno + nregs >= this_regno + this_nregs))
- SET_HARD_REG_BIT (live_hard_regs, head->regno + nregs);
- }
-
- if (action == terminate_dead)
- terminated_this_insn = *p;
- *p = next;
- if (dump_file)
- fprintf (dump_file,
- "Closing chain %s (%d) at insn %d (%s%s)\n",
- reg_names[head->regno], head->id, INSN_UID (insn),
- scan_actions_name[(int) action],
- superset ? ", superset" : subset ? ", subset" : "");
- }
- else if (action == terminate_dead || action == terminate_write)
- {
- /* In this case, tracking liveness gets too hard. Fail the
- entire basic block. */
- if (dump_file)
- fprintf (dump_file,
- "Failing basic block due to unhandled overlap\n");
- fail_current_block = true;
- return;
- }
- else
- {
- head->cannot_rename = 1;
- if (dump_file)
- fprintf (dump_file,
- "Cannot rename chain %s (%d) at insn %d (%s)\n",
- reg_names[head->regno], head->id, INSN_UID (insn),
- scan_actions_name[(int) action]);
- p = &head->next_chain;
- }
- }
-}
-
-/* A wrapper around base_reg_class which returns ALL_REGS if INSN is a
- DEBUG_INSN. The arguments MODE, AS, CODE and INDEX_CODE are as for
- base_reg_class. */
-
-static reg_class
-base_reg_class_for_rename (rtx_insn *insn, machine_mode mode, addr_space_t as,
- rtx_code code, rtx_code index_code)
-{
- if (DEBUG_INSN_P (insn))
- return ALL_REGS;
- return base_reg_class (mode, as, code, index_code);
-}
-
-/* Adapted from find_reloads_address_1. CL is INDEX_REG_CLASS or
- BASE_REG_CLASS depending on how the register is being considered. */
-
-static void
-scan_rtx_address (rtx_insn *insn, rtx *loc, enum reg_class cl,
- enum scan_actions action, machine_mode mode,
- addr_space_t as)
-{
- rtx x = *loc;
- RTX_CODE code = GET_CODE (x);
- const char *fmt;
- int i, j;
-
- if (action == mark_write || action == mark_access)
- return;
-
- switch (code)
- {
- case PLUS:
- {
- rtx orig_op0 = XEXP (x, 0);
- rtx orig_op1 = XEXP (x, 1);
- RTX_CODE code0 = GET_CODE (orig_op0);
- RTX_CODE code1 = GET_CODE (orig_op1);
- rtx op0 = orig_op0;
- rtx op1 = orig_op1;
- rtx *locI = NULL;
- rtx *locB = NULL;
- enum rtx_code index_code = SCRATCH;
-
- if (GET_CODE (op0) == SUBREG)
- {
- op0 = SUBREG_REG (op0);
- code0 = GET_CODE (op0);
- }
-
- if (GET_CODE (op1) == SUBREG)
- {
- op1 = SUBREG_REG (op1);
- code1 = GET_CODE (op1);
- }
-
- if (code0 == MULT || code0 == SIGN_EXTEND || code0 == TRUNCATE
- || code0 == ZERO_EXTEND || code1 == MEM)
- {
- locI = &XEXP (x, 0);
- locB = &XEXP (x, 1);
- index_code = GET_CODE (*locI);
- }
- else if (code1 == MULT || code1 == SIGN_EXTEND || code1 == TRUNCATE
- || code1 == ZERO_EXTEND || code0 == MEM)
- {
- locI = &XEXP (x, 1);
- locB = &XEXP (x, 0);
- index_code = GET_CODE (*locI);
- }
- else if (code0 == CONST_INT || code0 == CONST
- || code0 == SYMBOL_REF || code0 == LABEL_REF)
- {
- locB = &XEXP (x, 1);
- index_code = GET_CODE (XEXP (x, 0));
- }
- else if (code1 == CONST_INT || code1 == CONST
- || code1 == SYMBOL_REF || code1 == LABEL_REF)
- {
- locB = &XEXP (x, 0);
- index_code = GET_CODE (XEXP (x, 1));
- }
- else if (code0 == REG && code1 == REG)
- {
- int index_op;
- unsigned regno0 = REGNO (op0), regno1 = REGNO (op1);
-
- if (REGNO_OK_FOR_INDEX_P (regno1)
- && regno_ok_for_base_p (regno0, mode, as, PLUS, REG))
- index_op = 1;
- else if (REGNO_OK_FOR_INDEX_P (regno0)
- && regno_ok_for_base_p (regno1, mode, as, PLUS, REG))
- index_op = 0;
- else if (regno_ok_for_base_p (regno0, mode, as, PLUS, REG)
- || REGNO_OK_FOR_INDEX_P (regno1))
- index_op = 1;
- else if (regno_ok_for_base_p (regno1, mode, as, PLUS, REG))
- index_op = 0;
- else
- index_op = 1;
-
- locI = &XEXP (x, index_op);
- locB = &XEXP (x, !index_op);
- index_code = GET_CODE (*locI);
- }
- else if (code0 == REG)
- {
- locI = &XEXP (x, 0);
- locB = &XEXP (x, 1);
- index_code = GET_CODE (*locI);
- }
- else if (code1 == REG)
- {
- locI = &XEXP (x, 1);
- locB = &XEXP (x, 0);
- index_code = GET_CODE (*locI);
- }
-
- if (locI)
- {
- reg_class iclass = DEBUG_INSN_P (insn) ? ALL_REGS : INDEX_REG_CLASS;
- scan_rtx_address (insn, locI, iclass, action, mode, as);
- }
- if (locB)
- {
- reg_class bclass = base_reg_class_for_rename (insn, mode, as, PLUS,
- index_code);
- scan_rtx_address (insn, locB, bclass, action, mode, as);
- }
- return;
- }
-
- case POST_INC:
- case POST_DEC:
- case POST_MODIFY:
- case PRE_INC:
- case PRE_DEC:
- case PRE_MODIFY:
- /* If the target doesn't claim to handle autoinc, this must be
- something special, like a stack push. Kill this chain. */
- if (!AUTO_INC_DEC)
- action = mark_all_read;
-
- break;
-
- case MEM:
- {
- reg_class bclass = base_reg_class_for_rename (insn, GET_MODE (x),
- MEM_ADDR_SPACE (x),
- MEM, SCRATCH);
- scan_rtx_address (insn, &XEXP (x, 0), bclass, action, GET_MODE (x),
- MEM_ADDR_SPACE (x));
- }
- return;
-
- case REG:
- scan_rtx_reg (insn, loc, cl, action, OP_IN);
- return;
-
- default:
- break;
- }
-
- fmt = GET_RTX_FORMAT (code);
- for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
- {
- if (fmt[i] == 'e')
- scan_rtx_address (insn, &XEXP (x, i), cl, action, mode, as);
- else if (fmt[i] == 'E')
- for (j = XVECLEN (x, i) - 1; j >= 0; j--)
- scan_rtx_address (insn, &XVECEXP (x, i, j), cl, action, mode, as);
- }
-}
-
-static void
-scan_rtx (rtx_insn *insn, rtx *loc, enum reg_class cl, enum scan_actions action,
- enum op_type type)
-{
- const char *fmt;
- rtx x = *loc;
- int i, j;
-
- enum rtx_code code = GET_CODE (x);
- switch (code)
- {
- case CONST:
- CASE_CONST_ANY:
- case SYMBOL_REF:
- case LABEL_REF:
- case PC:
- return;
-
- case REG:
- scan_rtx_reg (insn, loc, cl, action, type);
- return;
-
- case MEM:
- {
- reg_class bclass = base_reg_class_for_rename (insn, GET_MODE (x),
- MEM_ADDR_SPACE (x),
- MEM, SCRATCH);
-
- scan_rtx_address (insn, &XEXP (x, 0), bclass, action, GET_MODE (x),
- MEM_ADDR_SPACE (x));
- }
- return;
-
- case SET:
- scan_rtx (insn, &SET_SRC (x), cl, action, OP_IN);
- scan_rtx (insn, &SET_DEST (x), cl, action,
- (GET_CODE (PATTERN (insn)) == COND_EXEC
- && verify_reg_tracked (SET_DEST (x))) ? OP_INOUT : OP_OUT);
- return;
-
- case STRICT_LOW_PART:
- scan_rtx (insn, &XEXP (x, 0), cl, action,
- verify_reg_tracked (XEXP (x, 0)) ? OP_INOUT : OP_OUT);
- return;
-
- case ZERO_EXTRACT:
- case SIGN_EXTRACT:
- scan_rtx (insn, &XEXP (x, 0), cl, action,
- (type == OP_IN ? OP_IN :
- verify_reg_tracked (XEXP (x, 0)) ? OP_INOUT : OP_OUT));
- scan_rtx (insn, &XEXP (x, 1), cl, action, OP_IN);
- scan_rtx (insn, &XEXP (x, 2), cl, action, OP_IN);
- return;
-
- case POST_INC:
- case PRE_INC:
- case POST_DEC:
- case PRE_DEC:
- case POST_MODIFY:
- case PRE_MODIFY:
- /* Should only happen inside MEM. */
- gcc_unreachable ();
-
- case CLOBBER:
- scan_rtx (insn, &SET_DEST (x), cl, action,
- (GET_CODE (PATTERN (insn)) == COND_EXEC
- && verify_reg_tracked (SET_DEST (x))) ? OP_INOUT : OP_OUT);
- return;
-
- case EXPR_LIST:
- scan_rtx (insn, &XEXP (x, 0), cl, action, type);
- if (XEXP (x, 1))
- scan_rtx (insn, &XEXP (x, 1), cl, action, type);
- return;
-
- default:
- break;
- }
-
- fmt = GET_RTX_FORMAT (code);
- for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
- {
- if (fmt[i] == 'e')
- scan_rtx (insn, &XEXP (x, i), cl, action, type);
- else if (fmt[i] == 'E')
- for (j = XVECLEN (x, i) - 1; j >= 0; j--)
- scan_rtx (insn, &XVECEXP (x, i, j), cl, action, type);
- }
-}
-
-/* Hide operands of the current insn (of which there are N_OPS) by
- substituting pc for them.
- Previous values are stored in the OLD_OPERANDS and OLD_DUPS.
- For every bit set in DO_NOT_HIDE, we leave the operand alone.
- If INOUT_AND_EC_ONLY is set, we only do this for OP_INOUT type operands
- and earlyclobbers. */
-
-static void
-hide_operands (int n_ops, rtx *old_operands, rtx *old_dups,
- unsigned HOST_WIDE_INT do_not_hide, bool inout_and_ec_only)
-{
- int i;
- const operand_alternative *op_alt = which_op_alt ();
- for (i = 0; i < n_ops; i++)
- {
- old_operands[i] = recog_data.operand[i];
- /* Don't squash match_operator or match_parallel here, since
- we don't know that all of the contained registers are
- reachable by proper operands. */
- if (recog_data.constraints[i][0] == '\0')
- continue;
- if (do_not_hide & (1 << i))
- continue;
- if (!inout_and_ec_only || recog_data.operand_type[i] == OP_INOUT
- || op_alt[i].earlyclobber)
- *recog_data.operand_loc[i] = pc_rtx;
- }
- for (i = 0; i < recog_data.n_dups; i++)
- {
- int opn = recog_data.dup_num[i];
- old_dups[i] = *recog_data.dup_loc[i];
- if (do_not_hide & (1 << opn))
- continue;
- if (!inout_and_ec_only || recog_data.operand_type[opn] == OP_INOUT
- || op_alt[opn].earlyclobber)
- *recog_data.dup_loc[i] = pc_rtx;
- }
-}
-
-/* Undo the substitution performed by hide_operands. INSN is the insn we
- are processing; the arguments are the same as in hide_operands. */
-
-static void
-restore_operands (rtx_insn *insn, int n_ops, rtx *old_operands, rtx *old_dups)
-{
- int i;
- for (i = 0; i < recog_data.n_dups; i++)
- *recog_data.dup_loc[i] = old_dups[i];
- for (i = 0; i < n_ops; i++)
- *recog_data.operand_loc[i] = old_operands[i];
- if (recog_data.n_dups)
- df_insn_rescan (insn);
-}
-
-/* For each output operand of INSN, call scan_rtx to create a new
- open chain. Do this only for normal or earlyclobber outputs,
- depending on EARLYCLOBBER. If INSN_INFO is nonnull, use it to
- record information about the operands in the insn. */
-
-static void
-record_out_operands (rtx_insn *insn, bool earlyclobber, insn_rr_info *insn_info)
-{
- int n_ops = recog_data.n_operands;
- const operand_alternative *op_alt = which_op_alt ();
-
- int i;
-
- for (i = 0; i < n_ops + recog_data.n_dups; i++)
- {
- int opn = i < n_ops ? i : recog_data.dup_num[i - n_ops];
- rtx *loc = (i < n_ops
- ? recog_data.operand_loc[opn]
- : recog_data.dup_loc[i - n_ops]);
- rtx op = *loc;
- enum reg_class cl = alternative_class (op_alt, opn);
-
- class du_head *prev_open;
-
- if (recog_data.operand_type[opn] != OP_OUT
- || op_alt[opn].earlyclobber != earlyclobber)
- continue;
-
- if (insn_info)
- cur_operand = insn_info->op_info + i;
-
- prev_open = open_chains;
- if (earlyclobber)
- scan_rtx (insn, loc, cl, terminate_write, OP_OUT);
- scan_rtx (insn, loc, cl, mark_write, OP_OUT);
-
- /* ??? Many targets have output constraints on the SET_DEST
- of a call insn, which is stupid, since these are certainly
- ABI defined hard registers. For these, and for asm operands
- that originally referenced hard registers, we must record that
- the chain cannot be renamed. */
- if (CALL_P (insn)
- || (asm_noperands (PATTERN (insn)) > 0
- && REG_P (op)
- && REGNO (op) == ORIGINAL_REGNO (op)))
- {
- if (prev_open != open_chains)
- open_chains->cannot_rename = 1;
- }
- }
- cur_operand = NULL;
-}
-
-/* Build def/use chain. */
-
-static bool
-build_def_use (basic_block bb)
-{
- rtx_insn *insn;
- unsigned HOST_WIDE_INT untracked_operands;
-
- fail_current_block = false;
-
- for (insn = BB_HEAD (bb); ; insn = NEXT_INSN (insn))
- {
- if (NONDEBUG_INSN_P (insn))
- {
- int n_ops;
- rtx note;
- rtx old_operands[MAX_RECOG_OPERANDS];
- rtx old_dups[MAX_DUP_OPERANDS];
- int i;
- int predicated;
- enum rtx_code set_code = SET;
- enum rtx_code clobber_code = CLOBBER;
- insn_rr_info *insn_info = NULL;
- terminated_this_insn = NULL;
-
- /* Process the insn, determining its effect on the def-use
- chains and live hard registers. We perform the following
- steps with the register references in the insn, simulating
- its effect:
- (1) Deal with earlyclobber operands and CLOBBERs of non-operands
- by creating chains and marking hard regs live.
- (2) Any read outside an operand causes any chain it overlaps
- with to be marked unrenamable.
- (3) Any read inside an operand is added if there's already
- an open chain for it.
- (4) For any REG_DEAD note we find, close open chains that
- overlap it.
- (5) For any non-earlyclobber write we find, close open chains
- that overlap it.
- (6) For any non-earlyclobber write we find in an operand, make
- a new chain or mark the hard register as live.
- (7) For any REG_UNUSED, close any chains we just opened.
- (8) For any REG_CFA_RESTORE or REG_CFA_REGISTER, kill any chain
- containing its dest.
-
- We cannot deal with situations where we track a reg in one mode
- and see a reference in another mode; these will cause the chain
- to be marked unrenamable or even cause us to abort the entire
- basic block. */
-
- extract_constrain_insn (insn);
- preprocess_constraints (insn);
- const operand_alternative *op_alt = which_op_alt ();
- n_ops = recog_data.n_operands;
- untracked_operands = 0;
-
- if (insn_rr.exists ())
- {
- insn_info = &insn_rr[INSN_UID (insn)];
- insn_info->op_info = XOBNEWVEC (&rename_obstack, operand_rr_info,
- recog_data.n_operands);
- memset (insn_info->op_info, 0,
- sizeof (operand_rr_info) * recog_data.n_operands);
- }
-
- /* Simplify the code below by promoting OP_OUT to OP_INOUT in
- predicated instructions, but only for register operands
- that are already tracked, so that we can create a chain
- when the first SET makes a register live. */
-
- predicated = GET_CODE (PATTERN (insn)) == COND_EXEC;
- for (i = 0; i < n_ops; ++i)
- {
- rtx op = recog_data.operand[i];
- int matches = op_alt[i].matches;
- if (matches >= 0 || op_alt[i].matched >= 0
- || (predicated && recog_data.operand_type[i] == OP_OUT))
- {
- recog_data.operand_type[i] = OP_INOUT;
- /* A special case to deal with instruction patterns that
- have matching operands with different modes. If we're
- not already tracking such a reg, we won't start here,
- and we must instead make sure to make the operand visible
- to the machinery that tracks hard registers. */
- machine_mode i_mode = recog_data.operand_mode[i];
- if (matches >= 0)
- {
- machine_mode matches_mode
- = recog_data.operand_mode[matches];
-
- if (maybe_ne (GET_MODE_SIZE (i_mode),
- GET_MODE_SIZE (matches_mode))
- && !verify_reg_in_set (op, &live_in_chains))
- {
- untracked_operands |= 1 << i;
- untracked_operands |= 1 << matches;
- }
- }
- }
-#ifdef STACK_REGS
- if (regstack_completed
- && REG_P (op)
- && IN_RANGE (REGNO (op), FIRST_STACK_REG, LAST_STACK_REG))
- untracked_operands |= 1 << i;
-#endif
- /* If there's an in-out operand with a register that is not
- being tracked at all yet, open a chain. */
- if (recog_data.operand_type[i] == OP_INOUT
- && !(untracked_operands & (1 << i))
- && REG_P (op)
- && !verify_reg_tracked (op))
- create_new_chain (REGNO (op), REG_NREGS (op), NULL, NULL,
- NO_REGS);
- }
-
- if (fail_current_block)
- break;
-
- /* Step 1a: Mark hard registers that are clobbered in this insn,
- outside an operand, as live. */
- hide_operands (n_ops, old_operands, old_dups, untracked_operands,
- false);
- note_stores (insn, note_sets_clobbers, &clobber_code);
- restore_operands (insn, n_ops, old_operands, old_dups);
-
- /* Step 1b: Begin new chains for earlyclobbered writes inside
- operands. */
- record_out_operands (insn, true, insn_info);
-
- /* Step 2: Mark chains for which we have reads outside operands
- as unrenamable.
- We do this by munging all operands into PC, and closing
- everything remaining. */
-
- hide_operands (n_ops, old_operands, old_dups, untracked_operands,
- false);
- scan_rtx (insn, &PATTERN (insn), NO_REGS, mark_all_read, OP_IN);
- restore_operands (insn, n_ops, old_operands, old_dups);
-
- /* Step 2B: Can't rename function call argument registers. */
- if (CALL_P (insn) && CALL_INSN_FUNCTION_USAGE (insn))
- scan_rtx (insn, &CALL_INSN_FUNCTION_USAGE (insn),
- NO_REGS, mark_all_read, OP_IN);
-
- /* Step 2C: Can't rename asm operands that were originally
- hard registers. */
- if (asm_noperands (PATTERN (insn)) > 0)
- for (i = 0; i < n_ops; i++)
- {
- rtx *loc = recog_data.operand_loc[i];
- rtx op = *loc;
-
- if (REG_P (op)
- && REGNO (op) == ORIGINAL_REGNO (op)
- && (recog_data.operand_type[i] == OP_IN
- || recog_data.operand_type[i] == OP_INOUT))
- scan_rtx (insn, loc, NO_REGS, mark_all_read, OP_IN);
- }
-
- /* Step 3: Append to chains for reads inside operands. */
- for (i = 0; i < n_ops + recog_data.n_dups; i++)
- {
- int opn = i < n_ops ? i : recog_data.dup_num[i - n_ops];
- rtx *loc = (i < n_ops
- ? recog_data.operand_loc[opn]
- : recog_data.dup_loc[i - n_ops]);
- enum reg_class cl = alternative_class (op_alt, opn);
- enum op_type type = recog_data.operand_type[opn];
-
- /* Don't scan match_operand here, since we've no reg class
- information to pass down. Any operands that we could
- substitute in will be represented elsewhere. */
- if (recog_data.constraints[opn][0] == '\0'
- || untracked_operands & (1 << opn))
- continue;
-
- if (insn_info)
- cur_operand = i == opn ? insn_info->op_info + i : NULL;
- if (op_alt[opn].is_address)
- scan_rtx_address (insn, loc, cl, mark_read,
- VOIDmode, ADDR_SPACE_GENERIC);
- else
- scan_rtx (insn, loc, cl, mark_read, type);
- }
- cur_operand = NULL;
-
- /* Step 3B: Record updates for regs in REG_INC notes, and
- source regs in REG_FRAME_RELATED_EXPR notes. */
- for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
- if (REG_NOTE_KIND (note) == REG_INC
- || REG_NOTE_KIND (note) == REG_FRAME_RELATED_EXPR)
- scan_rtx (insn, &XEXP (note, 0), ALL_REGS, mark_read,
- OP_INOUT);
-
- /* Step 4: Close chains for registers that die here, unless
- the register is mentioned in a REG_UNUSED note. In that
- case we keep the chain open until step #7 below to ensure
- it conflicts with other output operands of this insn.
- See PR 52573. Arguably the insn should not have both
- notes; it has proven difficult to fix that without
- other undesirable side effects. */
- for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
- if (REG_NOTE_KIND (note) == REG_DEAD
- && !find_regno_note (insn, REG_UNUSED, REGNO (XEXP (note, 0))))
- {
- remove_from_hard_reg_set (&live_hard_regs,
- GET_MODE (XEXP (note, 0)),
- REGNO (XEXP (note, 0)));
- scan_rtx (insn, &XEXP (note, 0), NO_REGS, terminate_dead,
- OP_IN);
- }
-
- /* Step 4B: If this is a call, any chain live at this point
- requires a caller-saved reg. */
- if (CALL_P (insn))
- {
- function_abi callee_abi = insn_callee_abi (insn);
- class du_head *p;
- for (p = open_chains; p; p = p->next_chain)
- {
- p->call_abis |= (1 << callee_abi.id ());
- p->call_clobber_mask
- |= callee_abi.full_and_partial_reg_clobbers ();
- p->hard_conflicts |= callee_abi.full_reg_clobbers ();
- }
- }
-
- /* Step 5: Close open chains that overlap writes. Similar to
- step 2, we hide in-out operands, since we do not want to
- close these chains. We also hide earlyclobber operands,
- since we've opened chains for them in step 1, and earlier
- chains they would overlap with must have been closed at
- the previous insn at the latest, as such operands cannot
- possibly overlap with any input operands. */
-
- hide_operands (n_ops, old_operands, old_dups, untracked_operands,
- true);
- scan_rtx (insn, &PATTERN (insn), NO_REGS, terminate_write, OP_IN);
- restore_operands (insn, n_ops, old_operands, old_dups);
-
- /* Step 6a: Mark hard registers that are set in this insn,
- outside an operand, as live. */
- hide_operands (n_ops, old_operands, old_dups, untracked_operands,
- false);
- note_stores (insn, note_sets_clobbers, &set_code);
- restore_operands (insn, n_ops, old_operands, old_dups);
-
- /* Step 6b: Begin new chains for writes inside operands. */
- record_out_operands (insn, false, insn_info);
-
- /* Step 6c: Record destination regs in REG_FRAME_RELATED_EXPR
- notes for update. */
- for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
- if (REG_NOTE_KIND (note) == REG_FRAME_RELATED_EXPR)
- scan_rtx (insn, &XEXP (note, 0), ALL_REGS, mark_access,
- OP_INOUT);
-
- /* Step 7: Close chains for registers that were never
- really used here. */
- for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
- if (REG_NOTE_KIND (note) == REG_UNUSED)
- {
- remove_from_hard_reg_set (&live_hard_regs,
- GET_MODE (XEXP (note, 0)),
- REGNO (XEXP (note, 0)));
- scan_rtx (insn, &XEXP (note, 0), NO_REGS, terminate_dead,
- OP_IN);
- }
-
- /* Step 8: Kill the chains involving register restores. Those
- should restore _that_ register. Similar for REG_CFA_REGISTER. */
- for (note = REG_NOTES (insn); note; note = XEXP (note, 1))
- if (REG_NOTE_KIND (note) == REG_CFA_RESTORE
- || REG_NOTE_KIND (note) == REG_CFA_REGISTER)
- {
- rtx *x = &XEXP (note, 0);
- if (!*x)
- x = &PATTERN (insn);
- if (GET_CODE (*x) == PARALLEL)
- x = &XVECEXP (*x, 0, 0);
- if (GET_CODE (*x) == SET)
- x = &SET_DEST (*x);
- scan_rtx (insn, x, NO_REGS, mark_all_read, OP_IN);
- }
- }
- else if (DEBUG_BIND_INSN_P (insn)
- && !VAR_LOC_UNKNOWN_P (INSN_VAR_LOCATION_LOC (insn)))
- {
- scan_rtx (insn, &INSN_VAR_LOCATION_LOC (insn),
- ALL_REGS, mark_read, OP_IN);
- }
- if (insn == BB_END (bb))
- break;
- }
-
- if (fail_current_block)
- return false;
-
- return true;
-}
-
-/* Initialize the register renamer. If INSN_INFO is true, ensure that
- insn_rr is nonnull. */
-void
-regrename_init (bool insn_info)
-{
- gcc_obstack_init (&rename_obstack);
- insn_rr.create (0);
- if (insn_info)
- insn_rr.safe_grow_cleared (get_max_uid (), true);
-}
-
-/* Free all global data used by the register renamer. */
-void
-regrename_finish (void)
-{
- insn_rr.release ();
- free_chain_data ();
- obstack_free (&rename_obstack, NULL);
-}
-
-/* Perform register renaming on the current function. */
-
-static unsigned int
-regrename_optimize (void)
-{
- df_set_flags (DF_LR_RUN_DCE);
- df_note_add_problem ();
- df_analyze ();
- df_set_flags (DF_DEFER_INSN_RESCAN);
-
- regrename_init (false);
-
- regrename_analyze (NULL, false);
-
- rename_chains ();
-
- regrename_finish ();
-
- return 0;
-}
-
-namespace {
-
-const pass_data pass_data_regrename =
-{
- RTL_PASS, /* type */
- "rnreg", /* name */
- OPTGROUP_NONE, /* optinfo_flags */
- TV_RENAME_REGISTERS, /* tv_id */
- 0, /* properties_required */
- 0, /* properties_provided */
- 0, /* properties_destroyed */
- 0, /* todo_flags_start */
- TODO_df_finish, /* todo_flags_finish */
-};
-
-class pass_regrename : public rtl_opt_pass
-{
-public:
- pass_regrename (gcc::context *ctxt)
- : rtl_opt_pass (pass_data_regrename, ctxt)
- {}
-
- /* opt_pass methods: */
- virtual bool gate (function *)
- {
- return (optimize > 0 && (flag_rename_registers));
- }
-
- virtual unsigned int execute (function *) { return regrename_optimize (); }
-
-}; // class pass_regrename
-
-} // anon namespace
-
-rtl_opt_pass *
-make_pass_regrename (gcc::context *ctxt)
-{
- return new pass_regrename (ctxt);
-}
generated by cgit v1.1 at 2025-09-02 23:14:05 +0000