diff options
author | Martin Liska <mliska@suse.cz> | 2022-01-14 16:56:44 +0100 |
---|---|---|
committer | Martin Liska <mliska@suse.cz> | 2022-01-17 22:12:04 +0100 |
commit | 5c69acb32329d49e58c26fa41ae74229a52b9106 (patch) | |
tree | ddb05f9d73afb6f998457d2ac4b720e3b3b60483 /gcc/caller-save.cc | |
parent | 490e23032baaece71f2ec09fa1805064b150fbc2 (diff) | |
download | gcc-5c69acb32329d49e58c26fa41ae74229a52b9106.tar.gz |
Rename .c files to .cc files.
gcc/ada/ChangeLog:
* adadecode.c: Moved to...
* adadecode.cc: ...here.
* affinity.c: Moved to...
* affinity.cc: ...here.
* argv-lynxos178-raven-cert.c: Moved to...
* argv-lynxos178-raven-cert.cc: ...here.
* argv.c: Moved to...
* argv.cc: ...here.
* aux-io.c: Moved to...
* aux-io.cc: ...here.
* cio.c: Moved to...
* cio.cc: ...here.
* cstreams.c: Moved to...
* cstreams.cc: ...here.
* env.c: Moved to...
* env.cc: ...here.
* exit.c: Moved to...
* exit.cc: ...here.
* expect.c: Moved to...
* expect.cc: ...here.
* final.c: Moved to...
* final.cc: ...here.
* gcc-interface/cuintp.c: Moved to...
* gcc-interface/cuintp.cc: ...here.
* gcc-interface/decl.c: Moved to...
* gcc-interface/decl.cc: ...here.
* gcc-interface/misc.c: Moved to...
* gcc-interface/misc.cc: ...here.
* gcc-interface/targtyps.c: Moved to...
* gcc-interface/targtyps.cc: ...here.
* gcc-interface/trans.c: Moved to...
* gcc-interface/trans.cc: ...here.
* gcc-interface/utils.c: Moved to...
* gcc-interface/utils.cc: ...here.
* gcc-interface/utils2.c: Moved to...
* gcc-interface/utils2.cc: ...here.
* init.c: Moved to...
* init.cc: ...here.
* initialize.c: Moved to...
* initialize.cc: ...here.
* libgnarl/thread.c: Moved to...
* libgnarl/thread.cc: ...here.
* link.c: Moved to...
* link.cc: ...here.
* locales.c: Moved to...
* locales.cc: ...here.
* mkdir.c: Moved to...
* mkdir.cc: ...here.
* raise.c: Moved to...
* raise.cc: ...here.
* rtfinal.c: Moved to...
* rtfinal.cc: ...here.
* rtinit.c: Moved to...
* rtinit.cc: ...here.
* seh_init.c: Moved to...
* seh_init.cc: ...here.
* sigtramp-armdroid.c: Moved to...
* sigtramp-armdroid.cc: ...here.
* sigtramp-ios.c: Moved to...
* sigtramp-ios.cc: ...here.
* sigtramp-qnx.c: Moved to...
* sigtramp-qnx.cc: ...here.
* sigtramp-vxworks.c: Moved to...
* sigtramp-vxworks.cc: ...here.
* socket.c: Moved to...
* socket.cc: ...here.
* tracebak.c: Moved to...
* tracebak.cc: ...here.
* version.c: Moved to...
* version.cc: ...here.
* vx_stack_info.c: Moved to...
* vx_stack_info.cc: ...here.
gcc/ChangeLog:
* adjust-alignment.c: Moved to...
* adjust-alignment.cc: ...here.
* alias.c: Moved to...
* alias.cc: ...here.
* alloc-pool.c: Moved to...
* alloc-pool.cc: ...here.
* asan.c: Moved to...
* asan.cc: ...here.
* attribs.c: Moved to...
* attribs.cc: ...here.
* auto-inc-dec.c: Moved to...
* auto-inc-dec.cc: ...here.
* auto-profile.c: Moved to...
* auto-profile.cc: ...here.
* bb-reorder.c: Moved to...
* bb-reorder.cc: ...here.
* bitmap.c: Moved to...
* bitmap.cc: ...here.
* btfout.c: Moved to...
* btfout.cc: ...here.
* builtins.c: Moved to...
* builtins.cc: ...here.
* caller-save.c: Moved to...
* caller-save.cc: ...here.
* calls.c: Moved to...
* calls.cc: ...here.
* ccmp.c: Moved to...
* ccmp.cc: ...here.
* cfg.c: Moved to...
* cfg.cc: ...here.
* cfganal.c: Moved to...
* cfganal.cc: ...here.
* cfgbuild.c: Moved to...
* cfgbuild.cc: ...here.
* cfgcleanup.c: Moved to...
* cfgcleanup.cc: ...here.
* cfgexpand.c: Moved to...
* cfgexpand.cc: ...here.
* cfghooks.c: Moved to...
* cfghooks.cc: ...here.
* cfgloop.c: Moved to...
* cfgloop.cc: ...here.
* cfgloopanal.c: Moved to...
* cfgloopanal.cc: ...here.
* cfgloopmanip.c: Moved to...
* cfgloopmanip.cc: ...here.
* cfgrtl.c: Moved to...
* cfgrtl.cc: ...here.
* cgraph.c: Moved to...
* cgraph.cc: ...here.
* cgraphbuild.c: Moved to...
* cgraphbuild.cc: ...here.
* cgraphclones.c: Moved to...
* cgraphclones.cc: ...here.
* cgraphunit.c: Moved to...
* cgraphunit.cc: ...here.
* collect-utils.c: Moved to...
* collect-utils.cc: ...here.
* collect2-aix.c: Moved to...
* collect2-aix.cc: ...here.
* collect2.c: Moved to...
* collect2.cc: ...here.
* combine-stack-adj.c: Moved to...
* combine-stack-adj.cc: ...here.
* combine.c: Moved to...
* combine.cc: ...here.
* common/common-targhooks.c: Moved to...
* common/common-targhooks.cc: ...here.
* common/config/aarch64/aarch64-common.c: Moved to...
* common/config/aarch64/aarch64-common.cc: ...here.
* common/config/alpha/alpha-common.c: Moved to...
* common/config/alpha/alpha-common.cc: ...here.
* common/config/arc/arc-common.c: Moved to...
* common/config/arc/arc-common.cc: ...here.
* common/config/arm/arm-common.c: Moved to...
* common/config/arm/arm-common.cc: ...here.
* common/config/avr/avr-common.c: Moved to...
* common/config/avr/avr-common.cc: ...here.
* common/config/bfin/bfin-common.c: Moved to...
* common/config/bfin/bfin-common.cc: ...here.
* common/config/bpf/bpf-common.c: Moved to...
* common/config/bpf/bpf-common.cc: ...here.
* common/config/c6x/c6x-common.c: Moved to...
* common/config/c6x/c6x-common.cc: ...here.
* common/config/cr16/cr16-common.c: Moved to...
* common/config/cr16/cr16-common.cc: ...here.
* common/config/cris/cris-common.c: Moved to...
* common/config/cris/cris-common.cc: ...here.
* common/config/csky/csky-common.c: Moved to...
* common/config/csky/csky-common.cc: ...here.
* common/config/default-common.c: Moved to...
* common/config/default-common.cc: ...here.
* common/config/epiphany/epiphany-common.c: Moved to...
* common/config/epiphany/epiphany-common.cc: ...here.
* common/config/fr30/fr30-common.c: Moved to...
* common/config/fr30/fr30-common.cc: ...here.
* common/config/frv/frv-common.c: Moved to...
* common/config/frv/frv-common.cc: ...here.
* common/config/gcn/gcn-common.c: Moved to...
* common/config/gcn/gcn-common.cc: ...here.
* common/config/h8300/h8300-common.c: Moved to...
* common/config/h8300/h8300-common.cc: ...here.
* common/config/i386/i386-common.c: Moved to...
* common/config/i386/i386-common.cc: ...here.
* common/config/ia64/ia64-common.c: Moved to...
* common/config/ia64/ia64-common.cc: ...here.
* common/config/iq2000/iq2000-common.c: Moved to...
* common/config/iq2000/iq2000-common.cc: ...here.
* common/config/lm32/lm32-common.c: Moved to...
* common/config/lm32/lm32-common.cc: ...here.
* common/config/m32r/m32r-common.c: Moved to...
* common/config/m32r/m32r-common.cc: ...here.
* common/config/m68k/m68k-common.c: Moved to...
* common/config/m68k/m68k-common.cc: ...here.
* common/config/mcore/mcore-common.c: Moved to...
* common/config/mcore/mcore-common.cc: ...here.
* common/config/microblaze/microblaze-common.c: Moved to...
* common/config/microblaze/microblaze-common.cc: ...here.
* common/config/mips/mips-common.c: Moved to...
* common/config/mips/mips-common.cc: ...here.
* common/config/mmix/mmix-common.c: Moved to...
* common/config/mmix/mmix-common.cc: ...here.
* common/config/mn10300/mn10300-common.c: Moved to...
* common/config/mn10300/mn10300-common.cc: ...here.
* common/config/msp430/msp430-common.c: Moved to...
* common/config/msp430/msp430-common.cc: ...here.
* common/config/nds32/nds32-common.c: Moved to...
* common/config/nds32/nds32-common.cc: ...here.
* common/config/nios2/nios2-common.c: Moved to...
* common/config/nios2/nios2-common.cc: ...here.
* common/config/nvptx/nvptx-common.c: Moved to...
* common/config/nvptx/nvptx-common.cc: ...here.
* common/config/or1k/or1k-common.c: Moved to...
* common/config/or1k/or1k-common.cc: ...here.
* common/config/pa/pa-common.c: Moved to...
* common/config/pa/pa-common.cc: ...here.
* common/config/pdp11/pdp11-common.c: Moved to...
* common/config/pdp11/pdp11-common.cc: ...here.
* common/config/pru/pru-common.c: Moved to...
* common/config/pru/pru-common.cc: ...here.
* common/config/riscv/riscv-common.c: Moved to...
* common/config/riscv/riscv-common.cc: ...here.
* common/config/rs6000/rs6000-common.c: Moved to...
* common/config/rs6000/rs6000-common.cc: ...here.
* common/config/rx/rx-common.c: Moved to...
* common/config/rx/rx-common.cc: ...here.
* common/config/s390/s390-common.c: Moved to...
* common/config/s390/s390-common.cc: ...here.
* common/config/sh/sh-common.c: Moved to...
* common/config/sh/sh-common.cc: ...here.
* common/config/sparc/sparc-common.c: Moved to...
* common/config/sparc/sparc-common.cc: ...here.
* common/config/tilegx/tilegx-common.c: Moved to...
* common/config/tilegx/tilegx-common.cc: ...here.
* common/config/tilepro/tilepro-common.c: Moved to...
* common/config/tilepro/tilepro-common.cc: ...here.
* common/config/v850/v850-common.c: Moved to...
* common/config/v850/v850-common.cc: ...here.
* common/config/vax/vax-common.c: Moved to...
* common/config/vax/vax-common.cc: ...here.
* common/config/visium/visium-common.c: Moved to...
* common/config/visium/visium-common.cc: ...here.
* common/config/xstormy16/xstormy16-common.c: Moved to...
* common/config/xstormy16/xstormy16-common.cc: ...here.
* common/config/xtensa/xtensa-common.c: Moved to...
* common/config/xtensa/xtensa-common.cc: ...here.
* compare-elim.c: Moved to...
* compare-elim.cc: ...here.
* config/aarch64/aarch64-bti-insert.c: Moved to...
* config/aarch64/aarch64-bti-insert.cc: ...here.
* config/aarch64/aarch64-builtins.c: Moved to...
* config/aarch64/aarch64-builtins.cc: ...here.
* config/aarch64/aarch64-c.c: Moved to...
* config/aarch64/aarch64-c.cc: ...here.
* config/aarch64/aarch64-d.c: Moved to...
* config/aarch64/aarch64-d.cc: ...here.
* config/aarch64/aarch64.c: Moved to...
* config/aarch64/aarch64.cc: ...here.
* config/aarch64/cortex-a57-fma-steering.c: Moved to...
* config/aarch64/cortex-a57-fma-steering.cc: ...here.
* config/aarch64/driver-aarch64.c: Moved to...
* config/aarch64/driver-aarch64.cc: ...here.
* config/aarch64/falkor-tag-collision-avoidance.c: Moved to...
* config/aarch64/falkor-tag-collision-avoidance.cc: ...here.
* config/aarch64/host-aarch64-darwin.c: Moved to...
* config/aarch64/host-aarch64-darwin.cc: ...here.
* config/alpha/alpha.c: Moved to...
* config/alpha/alpha.cc: ...here.
* config/alpha/driver-alpha.c: Moved to...
* config/alpha/driver-alpha.cc: ...here.
* config/arc/arc-c.c: Moved to...
* config/arc/arc-c.cc: ...here.
* config/arc/arc.c: Moved to...
* config/arc/arc.cc: ...here.
* config/arc/driver-arc.c: Moved to...
* config/arc/driver-arc.cc: ...here.
* config/arm/aarch-common.c: Moved to...
* config/arm/aarch-common.cc: ...here.
* config/arm/arm-builtins.c: Moved to...
* config/arm/arm-builtins.cc: ...here.
* config/arm/arm-c.c: Moved to...
* config/arm/arm-c.cc: ...here.
* config/arm/arm-d.c: Moved to...
* config/arm/arm-d.cc: ...here.
* config/arm/arm.c: Moved to...
* config/arm/arm.cc: ...here.
* config/arm/driver-arm.c: Moved to...
* config/arm/driver-arm.cc: ...here.
* config/avr/avr-c.c: Moved to...
* config/avr/avr-c.cc: ...here.
* config/avr/avr-devices.c: Moved to...
* config/avr/avr-devices.cc: ...here.
* config/avr/avr-log.c: Moved to...
* config/avr/avr-log.cc: ...here.
* config/avr/avr.c: Moved to...
* config/avr/avr.cc: ...here.
* config/avr/driver-avr.c: Moved to...
* config/avr/driver-avr.cc: ...here.
* config/avr/gen-avr-mmcu-specs.c: Moved to...
* config/avr/gen-avr-mmcu-specs.cc: ...here.
* config/avr/gen-avr-mmcu-texi.c: Moved to...
* config/avr/gen-avr-mmcu-texi.cc: ...here.
* config/bfin/bfin.c: Moved to...
* config/bfin/bfin.cc: ...here.
* config/bpf/bpf.c: Moved to...
* config/bpf/bpf.cc: ...here.
* config/bpf/coreout.c: Moved to...
* config/bpf/coreout.cc: ...here.
* config/c6x/c6x.c: Moved to...
* config/c6x/c6x.cc: ...here.
* config/cr16/cr16.c: Moved to...
* config/cr16/cr16.cc: ...here.
* config/cris/cris.c: Moved to...
* config/cris/cris.cc: ...here.
* config/csky/csky.c: Moved to...
* config/csky/csky.cc: ...here.
* config/darwin-c.c: Moved to...
* config/darwin-c.cc: ...here.
* config/darwin-d.c: Moved to...
* config/darwin-d.cc: ...here.
* config/darwin-driver.c: Moved to...
* config/darwin-driver.cc: ...here.
* config/darwin-f.c: Moved to...
* config/darwin-f.cc: ...here.
* config/darwin.c: Moved to...
* config/darwin.cc: ...here.
* config/default-c.c: Moved to...
* config/default-c.cc: ...here.
* config/default-d.c: Moved to...
* config/default-d.cc: ...here.
* config/dragonfly-d.c: Moved to...
* config/dragonfly-d.cc: ...here.
* config/epiphany/epiphany.c: Moved to...
* config/epiphany/epiphany.cc: ...here.
* config/epiphany/mode-switch-use.c: Moved to...
* config/epiphany/mode-switch-use.cc: ...here.
* config/epiphany/resolve-sw-modes.c: Moved to...
* config/epiphany/resolve-sw-modes.cc: ...here.
* config/fr30/fr30.c: Moved to...
* config/fr30/fr30.cc: ...here.
* config/freebsd-d.c: Moved to...
* config/freebsd-d.cc: ...here.
* config/frv/frv.c: Moved to...
* config/frv/frv.cc: ...here.
* config/ft32/ft32.c: Moved to...
* config/ft32/ft32.cc: ...here.
* config/gcn/driver-gcn.c: Moved to...
* config/gcn/driver-gcn.cc: ...here.
* config/gcn/gcn-run.c: Moved to...
* config/gcn/gcn-run.cc: ...here.
* config/gcn/gcn-tree.c: Moved to...
* config/gcn/gcn-tree.cc: ...here.
* config/gcn/gcn.c: Moved to...
* config/gcn/gcn.cc: ...here.
* config/gcn/mkoffload.c: Moved to...
* config/gcn/mkoffload.cc: ...here.
* config/glibc-c.c: Moved to...
* config/glibc-c.cc: ...here.
* config/glibc-d.c: Moved to...
* config/glibc-d.cc: ...here.
* config/h8300/h8300.c: Moved to...
* config/h8300/h8300.cc: ...here.
* config/host-darwin.c: Moved to...
* config/host-darwin.cc: ...here.
* config/host-hpux.c: Moved to...
* config/host-hpux.cc: ...here.
* config/host-linux.c: Moved to...
* config/host-linux.cc: ...here.
* config/host-netbsd.c: Moved to...
* config/host-netbsd.cc: ...here.
* config/host-openbsd.c: Moved to...
* config/host-openbsd.cc: ...here.
* config/host-solaris.c: Moved to...
* config/host-solaris.cc: ...here.
* config/i386/djgpp.c: Moved to...
* config/i386/djgpp.cc: ...here.
* config/i386/driver-i386.c: Moved to...
* config/i386/driver-i386.cc: ...here.
* config/i386/driver-mingw32.c: Moved to...
* config/i386/driver-mingw32.cc: ...here.
* config/i386/gnu-property.c: Moved to...
* config/i386/gnu-property.cc: ...here.
* config/i386/host-cygwin.c: Moved to...
* config/i386/host-cygwin.cc: ...here.
* config/i386/host-i386-darwin.c: Moved to...
* config/i386/host-i386-darwin.cc: ...here.
* config/i386/host-mingw32.c: Moved to...
* config/i386/host-mingw32.cc: ...here.
* config/i386/i386-builtins.c: Moved to...
* config/i386/i386-builtins.cc: ...here.
* config/i386/i386-c.c: Moved to...
* config/i386/i386-c.cc: ...here.
* config/i386/i386-d.c: Moved to...
* config/i386/i386-d.cc: ...here.
* config/i386/i386-expand.c: Moved to...
* config/i386/i386-expand.cc: ...here.
* config/i386/i386-features.c: Moved to...
* config/i386/i386-features.cc: ...here.
* config/i386/i386-options.c: Moved to...
* config/i386/i386-options.cc: ...here.
* config/i386/i386.c: Moved to...
* config/i386/i386.cc: ...here.
* config/i386/intelmic-mkoffload.c: Moved to...
* config/i386/intelmic-mkoffload.cc: ...here.
* config/i386/msformat-c.c: Moved to...
* config/i386/msformat-c.cc: ...here.
* config/i386/winnt-cxx.c: Moved to...
* config/i386/winnt-cxx.cc: ...here.
* config/i386/winnt-d.c: Moved to...
* config/i386/winnt-d.cc: ...here.
* config/i386/winnt-stubs.c: Moved to...
* config/i386/winnt-stubs.cc: ...here.
* config/i386/winnt.c: Moved to...
* config/i386/winnt.cc: ...here.
* config/i386/x86-tune-sched-atom.c: Moved to...
* config/i386/x86-tune-sched-atom.cc: ...here.
* config/i386/x86-tune-sched-bd.c: Moved to...
* config/i386/x86-tune-sched-bd.cc: ...here.
* config/i386/x86-tune-sched-core.c: Moved to...
* config/i386/x86-tune-sched-core.cc: ...here.
* config/i386/x86-tune-sched.c: Moved to...
* config/i386/x86-tune-sched.cc: ...here.
* config/ia64/ia64-c.c: Moved to...
* config/ia64/ia64-c.cc: ...here.
* config/ia64/ia64.c: Moved to...
* config/ia64/ia64.cc: ...here.
* config/iq2000/iq2000.c: Moved to...
* config/iq2000/iq2000.cc: ...here.
* config/linux.c: Moved to...
* config/linux.cc: ...here.
* config/lm32/lm32.c: Moved to...
* config/lm32/lm32.cc: ...here.
* config/m32c/m32c-pragma.c: Moved to...
* config/m32c/m32c-pragma.cc: ...here.
* config/m32c/m32c.c: Moved to...
* config/m32c/m32c.cc: ...here.
* config/m32r/m32r.c: Moved to...
* config/m32r/m32r.cc: ...here.
* config/m68k/m68k.c: Moved to...
* config/m68k/m68k.cc: ...here.
* config/mcore/mcore.c: Moved to...
* config/mcore/mcore.cc: ...here.
* config/microblaze/microblaze-c.c: Moved to...
* config/microblaze/microblaze-c.cc: ...here.
* config/microblaze/microblaze.c: Moved to...
* config/microblaze/microblaze.cc: ...here.
* config/mips/driver-native.c: Moved to...
* config/mips/driver-native.cc: ...here.
* config/mips/frame-header-opt.c: Moved to...
* config/mips/frame-header-opt.cc: ...here.
* config/mips/mips-d.c: Moved to...
* config/mips/mips-d.cc: ...here.
* config/mips/mips.c: Moved to...
* config/mips/mips.cc: ...here.
* config/mmix/mmix.c: Moved to...
* config/mmix/mmix.cc: ...here.
* config/mn10300/mn10300.c: Moved to...
* config/mn10300/mn10300.cc: ...here.
* config/moxie/moxie.c: Moved to...
* config/moxie/moxie.cc: ...here.
* config/msp430/driver-msp430.c: Moved to...
* config/msp430/driver-msp430.cc: ...here.
* config/msp430/msp430-c.c: Moved to...
* config/msp430/msp430-c.cc: ...here.
* config/msp430/msp430-devices.c: Moved to...
* config/msp430/msp430-devices.cc: ...here.
* config/msp430/msp430.c: Moved to...
* config/msp430/msp430.cc: ...here.
* config/nds32/nds32-cost.c: Moved to...
* config/nds32/nds32-cost.cc: ...here.
* config/nds32/nds32-fp-as-gp.c: Moved to...
* config/nds32/nds32-fp-as-gp.cc: ...here.
* config/nds32/nds32-intrinsic.c: Moved to...
* config/nds32/nds32-intrinsic.cc: ...here.
* config/nds32/nds32-isr.c: Moved to...
* config/nds32/nds32-isr.cc: ...here.
* config/nds32/nds32-md-auxiliary.c: Moved to...
* config/nds32/nds32-md-auxiliary.cc: ...here.
* config/nds32/nds32-memory-manipulation.c: Moved to...
* config/nds32/nds32-memory-manipulation.cc: ...here.
* config/nds32/nds32-pipelines-auxiliary.c: Moved to...
* config/nds32/nds32-pipelines-auxiliary.cc: ...here.
* config/nds32/nds32-predicates.c: Moved to...
* config/nds32/nds32-predicates.cc: ...here.
* config/nds32/nds32-relax-opt.c: Moved to...
* config/nds32/nds32-relax-opt.cc: ...here.
* config/nds32/nds32-utils.c: Moved to...
* config/nds32/nds32-utils.cc: ...here.
* config/nds32/nds32.c: Moved to...
* config/nds32/nds32.cc: ...here.
* config/netbsd-d.c: Moved to...
* config/netbsd-d.cc: ...here.
* config/netbsd.c: Moved to...
* config/netbsd.cc: ...here.
* config/nios2/nios2.c: Moved to...
* config/nios2/nios2.cc: ...here.
* config/nvptx/mkoffload.c: Moved to...
* config/nvptx/mkoffload.cc: ...here.
* config/nvptx/nvptx-c.c: Moved to...
* config/nvptx/nvptx-c.cc: ...here.
* config/nvptx/nvptx.c: Moved to...
* config/nvptx/nvptx.cc: ...here.
* config/openbsd-d.c: Moved to...
* config/openbsd-d.cc: ...here.
* config/or1k/or1k.c: Moved to...
* config/or1k/or1k.cc: ...here.
* config/pa/pa-d.c: Moved to...
* config/pa/pa-d.cc: ...here.
* config/pa/pa.c: Moved to...
* config/pa/pa.cc: ...here.
* config/pdp11/pdp11.c: Moved to...
* config/pdp11/pdp11.cc: ...here.
* config/pru/pru-passes.c: Moved to...
* config/pru/pru-passes.cc: ...here.
* config/pru/pru-pragma.c: Moved to...
* config/pru/pru-pragma.cc: ...here.
* config/pru/pru.c: Moved to...
* config/pru/pru.cc: ...here.
* config/riscv/riscv-builtins.c: Moved to...
* config/riscv/riscv-builtins.cc: ...here.
* config/riscv/riscv-c.c: Moved to...
* config/riscv/riscv-c.cc: ...here.
* config/riscv/riscv-d.c: Moved to...
* config/riscv/riscv-d.cc: ...here.
* config/riscv/riscv-shorten-memrefs.c: Moved to...
* config/riscv/riscv-shorten-memrefs.cc: ...here.
* config/riscv/riscv-sr.c: Moved to...
* config/riscv/riscv-sr.cc: ...here.
* config/riscv/riscv.c: Moved to...
* config/riscv/riscv.cc: ...here.
* config/rl78/rl78-c.c: Moved to...
* config/rl78/rl78-c.cc: ...here.
* config/rl78/rl78.c: Moved to...
* config/rl78/rl78.cc: ...here.
* config/rs6000/driver-rs6000.c: Moved to...
* config/rs6000/driver-rs6000.cc: ...here.
* config/rs6000/host-darwin.c: Moved to...
* config/rs6000/host-darwin.cc: ...here.
* config/rs6000/host-ppc64-darwin.c: Moved to...
* config/rs6000/host-ppc64-darwin.cc: ...here.
* config/rs6000/rbtree.c: Moved to...
* config/rs6000/rbtree.cc: ...here.
* config/rs6000/rs6000-c.c: Moved to...
* config/rs6000/rs6000-c.cc: ...here.
* config/rs6000/rs6000-call.c: Moved to...
* config/rs6000/rs6000-call.cc: ...here.
* config/rs6000/rs6000-d.c: Moved to...
* config/rs6000/rs6000-d.cc: ...here.
* config/rs6000/rs6000-gen-builtins.c: Moved to...
* config/rs6000/rs6000-gen-builtins.cc: ...here.
* config/rs6000/rs6000-linux.c: Moved to...
* config/rs6000/rs6000-linux.cc: ...here.
* config/rs6000/rs6000-logue.c: Moved to...
* config/rs6000/rs6000-logue.cc: ...here.
* config/rs6000/rs6000-p8swap.c: Moved to...
* config/rs6000/rs6000-p8swap.cc: ...here.
* config/rs6000/rs6000-pcrel-opt.c: Moved to...
* config/rs6000/rs6000-pcrel-opt.cc: ...here.
* config/rs6000/rs6000-string.c: Moved to...
* config/rs6000/rs6000-string.cc: ...here.
* config/rs6000/rs6000.c: Moved to...
* config/rs6000/rs6000.cc: ...here.
* config/rx/rx.c: Moved to...
* config/rx/rx.cc: ...here.
* config/s390/driver-native.c: Moved to...
* config/s390/driver-native.cc: ...here.
* config/s390/s390-c.c: Moved to...
* config/s390/s390-c.cc: ...here.
* config/s390/s390-d.c: Moved to...
* config/s390/s390-d.cc: ...here.
* config/s390/s390.c: Moved to...
* config/s390/s390.cc: ...here.
* config/sh/divtab-sh4-300.c: Moved to...
* config/sh/divtab-sh4-300.cc: ...here.
* config/sh/divtab-sh4.c: Moved to...
* config/sh/divtab-sh4.cc: ...here.
* config/sh/divtab.c: Moved to...
* config/sh/divtab.cc: ...here.
* config/sh/sh-c.c: Moved to...
* config/sh/sh-c.cc: ...here.
* config/sh/sh.c: Moved to...
* config/sh/sh.cc: ...here.
* config/sol2-c.c: Moved to...
* config/sol2-c.cc: ...here.
* config/sol2-cxx.c: Moved to...
* config/sol2-cxx.cc: ...here.
* config/sol2-d.c: Moved to...
* config/sol2-d.cc: ...here.
* config/sol2-stubs.c: Moved to...
* config/sol2-stubs.cc: ...here.
* config/sol2.c: Moved to...
* config/sol2.cc: ...here.
* config/sparc/driver-sparc.c: Moved to...
* config/sparc/driver-sparc.cc: ...here.
* config/sparc/sparc-c.c: Moved to...
* config/sparc/sparc-c.cc: ...here.
* config/sparc/sparc-d.c: Moved to...
* config/sparc/sparc-d.cc: ...here.
* config/sparc/sparc.c: Moved to...
* config/sparc/sparc.cc: ...here.
* config/stormy16/stormy16.c: Moved to...
* config/stormy16/stormy16.cc: ...here.
* config/tilegx/mul-tables.c: Moved to...
* config/tilegx/mul-tables.cc: ...here.
* config/tilegx/tilegx-c.c: Moved to...
* config/tilegx/tilegx-c.cc: ...here.
* config/tilegx/tilegx.c: Moved to...
* config/tilegx/tilegx.cc: ...here.
* config/tilepro/mul-tables.c: Moved to...
* config/tilepro/mul-tables.cc: ...here.
* config/tilepro/tilepro-c.c: Moved to...
* config/tilepro/tilepro-c.cc: ...here.
* config/tilepro/tilepro.c: Moved to...
* config/tilepro/tilepro.cc: ...here.
* config/v850/v850-c.c: Moved to...
* config/v850/v850-c.cc: ...here.
* config/v850/v850.c: Moved to...
* config/v850/v850.cc: ...here.
* config/vax/vax.c: Moved to...
* config/vax/vax.cc: ...here.
* config/visium/visium.c: Moved to...
* config/visium/visium.cc: ...here.
* config/vms/vms-c.c: Moved to...
* config/vms/vms-c.cc: ...here.
* config/vms/vms-f.c: Moved to...
* config/vms/vms-f.cc: ...here.
* config/vms/vms.c: Moved to...
* config/vms/vms.cc: ...here.
* config/vxworks-c.c: Moved to...
* config/vxworks-c.cc: ...here.
* config/vxworks.c: Moved to...
* config/vxworks.cc: ...here.
* config/winnt-c.c: Moved to...
* config/winnt-c.cc: ...here.
* config/xtensa/xtensa.c: Moved to...
* config/xtensa/xtensa.cc: ...here.
* context.c: Moved to...
* context.cc: ...here.
* convert.c: Moved to...
* convert.cc: ...here.
* coverage.c: Moved to...
* coverage.cc: ...here.
* cppbuiltin.c: Moved to...
* cppbuiltin.cc: ...here.
* cppdefault.c: Moved to...
* cppdefault.cc: ...here.
* cprop.c: Moved to...
* cprop.cc: ...here.
* cse.c: Moved to...
* cse.cc: ...here.
* cselib.c: Moved to...
* cselib.cc: ...here.
* ctfc.c: Moved to...
* ctfc.cc: ...here.
* ctfout.c: Moved to...
* ctfout.cc: ...here.
* data-streamer-in.c: Moved to...
* data-streamer-in.cc: ...here.
* data-streamer-out.c: Moved to...
* data-streamer-out.cc: ...here.
* data-streamer.c: Moved to...
* data-streamer.cc: ...here.
* dbgcnt.c: Moved to...
* dbgcnt.cc: ...here.
* dbxout.c: Moved to...
* dbxout.cc: ...here.
* dce.c: Moved to...
* dce.cc: ...here.
* ddg.c: Moved to...
* ddg.cc: ...here.
* debug.c: Moved to...
* debug.cc: ...here.
* df-core.c: Moved to...
* df-core.cc: ...here.
* df-problems.c: Moved to...
* df-problems.cc: ...here.
* df-scan.c: Moved to...
* df-scan.cc: ...here.
* dfp.c: Moved to...
* dfp.cc: ...here.
* diagnostic-color.c: Moved to...
* diagnostic-color.cc: ...here.
* diagnostic-show-locus.c: Moved to...
* diagnostic-show-locus.cc: ...here.
* diagnostic-spec.c: Moved to...
* diagnostic-spec.cc: ...here.
* diagnostic.c: Moved to...
* diagnostic.cc: ...here.
* dojump.c: Moved to...
* dojump.cc: ...here.
* dominance.c: Moved to...
* dominance.cc: ...here.
* domwalk.c: Moved to...
* domwalk.cc: ...here.
* double-int.c: Moved to...
* double-int.cc: ...here.
* dse.c: Moved to...
* dse.cc: ...here.
* dumpfile.c: Moved to...
* dumpfile.cc: ...here.
* dwarf2asm.c: Moved to...
* dwarf2asm.cc: ...here.
* dwarf2cfi.c: Moved to...
* dwarf2cfi.cc: ...here.
* dwarf2ctf.c: Moved to...
* dwarf2ctf.cc: ...here.
* dwarf2out.c: Moved to...
* dwarf2out.cc: ...here.
* early-remat.c: Moved to...
* early-remat.cc: ...here.
* edit-context.c: Moved to...
* edit-context.cc: ...here.
* emit-rtl.c: Moved to...
* emit-rtl.cc: ...here.
* errors.c: Moved to...
* errors.cc: ...here.
* et-forest.c: Moved to...
* et-forest.cc: ...here.
* except.c: Moved to...
* except.cc: ...here.
* explow.c: Moved to...
* explow.cc: ...here.
* expmed.c: Moved to...
* expmed.cc: ...here.
* expr.c: Moved to...
* expr.cc: ...here.
* fibonacci_heap.c: Moved to...
* fibonacci_heap.cc: ...here.
* file-find.c: Moved to...
* file-find.cc: ...here.
* file-prefix-map.c: Moved to...
* file-prefix-map.cc: ...here.
* final.c: Moved to...
* final.cc: ...here.
* fixed-value.c: Moved to...
* fixed-value.cc: ...here.
* fold-const-call.c: Moved to...
* fold-const-call.cc: ...here.
* fold-const.c: Moved to...
* fold-const.cc: ...here.
* fp-test.c: Moved to...
* fp-test.cc: ...here.
* function-tests.c: Moved to...
* function-tests.cc: ...here.
* function.c: Moved to...
* function.cc: ...here.
* fwprop.c: Moved to...
* fwprop.cc: ...here.
* gcc-ar.c: Moved to...
* gcc-ar.cc: ...here.
* gcc-main.c: Moved to...
* gcc-main.cc: ...here.
* gcc-rich-location.c: Moved to...
* gcc-rich-location.cc: ...here.
* gcc.c: Moved to...
* gcc.cc: ...here.
* gcov-dump.c: Moved to...
* gcov-dump.cc: ...here.
* gcov-io.c: Moved to...
* gcov-io.cc: ...here.
* gcov-tool.c: Moved to...
* gcov-tool.cc: ...here.
* gcov.c: Moved to...
* gcov.cc: ...here.
* gcse-common.c: Moved to...
* gcse-common.cc: ...here.
* gcse.c: Moved to...
* gcse.cc: ...here.
* genattr-common.c: Moved to...
* genattr-common.cc: ...here.
* genattr.c: Moved to...
* genattr.cc: ...here.
* genattrtab.c: Moved to...
* genattrtab.cc: ...here.
* genautomata.c: Moved to...
* genautomata.cc: ...here.
* gencfn-macros.c: Moved to...
* gencfn-macros.cc: ...here.
* gencheck.c: Moved to...
* gencheck.cc: ...here.
* genchecksum.c: Moved to...
* genchecksum.cc: ...here.
* gencodes.c: Moved to...
* gencodes.cc: ...here.
* genconditions.c: Moved to...
* genconditions.cc: ...here.
* genconfig.c: Moved to...
* genconfig.cc: ...here.
* genconstants.c: Moved to...
* genconstants.cc: ...here.
* genemit.c: Moved to...
* genemit.cc: ...here.
* genenums.c: Moved to...
* genenums.cc: ...here.
* generic-match-head.c: Moved to...
* generic-match-head.cc: ...here.
* genextract.c: Moved to...
* genextract.cc: ...here.
* genflags.c: Moved to...
* genflags.cc: ...here.
* gengenrtl.c: Moved to...
* gengenrtl.cc: ...here.
* gengtype-parse.c: Moved to...
* gengtype-parse.cc: ...here.
* gengtype-state.c: Moved to...
* gengtype-state.cc: ...here.
* gengtype.c: Moved to...
* gengtype.cc: ...here.
* genhooks.c: Moved to...
* genhooks.cc: ...here.
* genmatch.c: Moved to...
* genmatch.cc: ...here.
* genmddeps.c: Moved to...
* genmddeps.cc: ...here.
* genmddump.c: Moved to...
* genmddump.cc: ...here.
* genmodes.c: Moved to...
* genmodes.cc: ...here.
* genopinit.c: Moved to...
* genopinit.cc: ...here.
* genoutput.c: Moved to...
* genoutput.cc: ...here.
* genpeep.c: Moved to...
* genpeep.cc: ...here.
* genpreds.c: Moved to...
* genpreds.cc: ...here.
* genrecog.c: Moved to...
* genrecog.cc: ...here.
* gensupport.c: Moved to...
* gensupport.cc: ...here.
* gentarget-def.c: Moved to...
* gentarget-def.cc: ...here.
* genversion.c: Moved to...
* genversion.cc: ...here.
* ggc-common.c: Moved to...
* ggc-common.cc: ...here.
* ggc-none.c: Moved to...
* ggc-none.cc: ...here.
* ggc-page.c: Moved to...
* ggc-page.cc: ...here.
* ggc-tests.c: Moved to...
* ggc-tests.cc: ...here.
* gimple-builder.c: Moved to...
* gimple-builder.cc: ...here.
* gimple-expr.c: Moved to...
* gimple-expr.cc: ...here.
* gimple-fold.c: Moved to...
* gimple-fold.cc: ...here.
* gimple-iterator.c: Moved to...
* gimple-iterator.cc: ...here.
* gimple-laddress.c: Moved to...
* gimple-laddress.cc: ...here.
* gimple-loop-jam.c: Moved to...
* gimple-loop-jam.cc: ...here.
* gimple-low.c: Moved to...
* gimple-low.cc: ...here.
* gimple-match-head.c: Moved to...
* gimple-match-head.cc: ...here.
* gimple-pretty-print.c: Moved to...
* gimple-pretty-print.cc: ...here.
* gimple-ssa-backprop.c: Moved to...
* gimple-ssa-backprop.cc: ...here.
* gimple-ssa-evrp-analyze.c: Moved to...
* gimple-ssa-evrp-analyze.cc: ...here.
* gimple-ssa-evrp.c: Moved to...
* gimple-ssa-evrp.cc: ...here.
* gimple-ssa-isolate-paths.c: Moved to...
* gimple-ssa-isolate-paths.cc: ...here.
* gimple-ssa-nonnull-compare.c: Moved to...
* gimple-ssa-nonnull-compare.cc: ...here.
* gimple-ssa-split-paths.c: Moved to...
* gimple-ssa-split-paths.cc: ...here.
* gimple-ssa-sprintf.c: Moved to...
* gimple-ssa-sprintf.cc: ...here.
* gimple-ssa-store-merging.c: Moved to...
* gimple-ssa-store-merging.cc: ...here.
* gimple-ssa-strength-reduction.c: Moved to...
* gimple-ssa-strength-reduction.cc: ...here.
* gimple-ssa-warn-alloca.c: Moved to...
* gimple-ssa-warn-alloca.cc: ...here.
* gimple-ssa-warn-restrict.c: Moved to...
* gimple-ssa-warn-restrict.cc: ...here.
* gimple-streamer-in.c: Moved to...
* gimple-streamer-in.cc: ...here.
* gimple-streamer-out.c: Moved to...
* gimple-streamer-out.cc: ...here.
* gimple-walk.c: Moved to...
* gimple-walk.cc: ...here.
* gimple-warn-recursion.c: Moved to...
* gimple-warn-recursion.cc: ...here.
* gimple.c: Moved to...
* gimple.cc: ...here.
* gimplify-me.c: Moved to...
* gimplify-me.cc: ...here.
* gimplify.c: Moved to...
* gimplify.cc: ...here.
* godump.c: Moved to...
* godump.cc: ...here.
* graph.c: Moved to...
* graph.cc: ...here.
* graphds.c: Moved to...
* graphds.cc: ...here.
* graphite-dependences.c: Moved to...
* graphite-dependences.cc: ...here.
* graphite-isl-ast-to-gimple.c: Moved to...
* graphite-isl-ast-to-gimple.cc: ...here.
* graphite-optimize-isl.c: Moved to...
* graphite-optimize-isl.cc: ...here.
* graphite-poly.c: Moved to...
* graphite-poly.cc: ...here.
* graphite-scop-detection.c: Moved to...
* graphite-scop-detection.cc: ...here.
* graphite-sese-to-poly.c: Moved to...
* graphite-sese-to-poly.cc: ...here.
* graphite.c: Moved to...
* graphite.cc: ...here.
* haifa-sched.c: Moved to...
* haifa-sched.cc: ...here.
* hash-map-tests.c: Moved to...
* hash-map-tests.cc: ...here.
* hash-set-tests.c: Moved to...
* hash-set-tests.cc: ...here.
* hash-table.c: Moved to...
* hash-table.cc: ...here.
* hooks.c: Moved to...
* hooks.cc: ...here.
* host-default.c: Moved to...
* host-default.cc: ...here.
* hw-doloop.c: Moved to...
* hw-doloop.cc: ...here.
* hwint.c: Moved to...
* hwint.cc: ...here.
* ifcvt.c: Moved to...
* ifcvt.cc: ...here.
* inchash.c: Moved to...
* inchash.cc: ...here.
* incpath.c: Moved to...
* incpath.cc: ...here.
* init-regs.c: Moved to...
* init-regs.cc: ...here.
* input.c: Moved to...
* input.cc: ...here.
* internal-fn.c: Moved to...
* internal-fn.cc: ...here.
* intl.c: Moved to...
* intl.cc: ...here.
* ipa-comdats.c: Moved to...
* ipa-comdats.cc: ...here.
* ipa-cp.c: Moved to...
* ipa-cp.cc: ...here.
* ipa-devirt.c: Moved to...
* ipa-devirt.cc: ...here.
* ipa-fnsummary.c: Moved to...
* ipa-fnsummary.cc: ...here.
* ipa-icf-gimple.c: Moved to...
* ipa-icf-gimple.cc: ...here.
* ipa-icf.c: Moved to...
* ipa-icf.cc: ...here.
* ipa-inline-analysis.c: Moved to...
* ipa-inline-analysis.cc: ...here.
* ipa-inline-transform.c: Moved to...
* ipa-inline-transform.cc: ...here.
* ipa-inline.c: Moved to...
* ipa-inline.cc: ...here.
* ipa-modref-tree.c: Moved to...
* ipa-modref-tree.cc: ...here.
* ipa-modref.c: Moved to...
* ipa-modref.cc: ...here.
* ipa-param-manipulation.c: Moved to...
* ipa-param-manipulation.cc: ...here.
* ipa-polymorphic-call.c: Moved to...
* ipa-polymorphic-call.cc: ...here.
* ipa-predicate.c: Moved to...
* ipa-predicate.cc: ...here.
* ipa-profile.c: Moved to...
* ipa-profile.cc: ...here.
* ipa-prop.c: Moved to...
* ipa-prop.cc: ...here.
* ipa-pure-const.c: Moved to...
* ipa-pure-const.cc: ...here.
* ipa-ref.c: Moved to...
* ipa-ref.cc: ...here.
* ipa-reference.c: Moved to...
* ipa-reference.cc: ...here.
* ipa-split.c: Moved to...
* ipa-split.cc: ...here.
* ipa-sra.c: Moved to...
* ipa-sra.cc: ...here.
* ipa-utils.c: Moved to...
* ipa-utils.cc: ...here.
* ipa-visibility.c: Moved to...
* ipa-visibility.cc: ...here.
* ipa.c: Moved to...
* ipa.cc: ...here.
* ira-build.c: Moved to...
* ira-build.cc: ...here.
* ira-color.c: Moved to...
* ira-color.cc: ...here.
* ira-conflicts.c: Moved to...
* ira-conflicts.cc: ...here.
* ira-costs.c: Moved to...
* ira-costs.cc: ...here.
* ira-emit.c: Moved to...
* ira-emit.cc: ...here.
* ira-lives.c: Moved to...
* ira-lives.cc: ...here.
* ira.c: Moved to...
* ira.cc: ...here.
* jump.c: Moved to...
* jump.cc: ...here.
* langhooks.c: Moved to...
* langhooks.cc: ...here.
* lcm.c: Moved to...
* lcm.cc: ...here.
* lists.c: Moved to...
* lists.cc: ...here.
* loop-doloop.c: Moved to...
* loop-doloop.cc: ...here.
* loop-init.c: Moved to...
* loop-init.cc: ...here.
* loop-invariant.c: Moved to...
* loop-invariant.cc: ...here.
* loop-iv.c: Moved to...
* loop-iv.cc: ...here.
* loop-unroll.c: Moved to...
* loop-unroll.cc: ...here.
* lower-subreg.c: Moved to...
* lower-subreg.cc: ...here.
* lra-assigns.c: Moved to...
* lra-assigns.cc: ...here.
* lra-coalesce.c: Moved to...
* lra-coalesce.cc: ...here.
* lra-constraints.c: Moved to...
* lra-constraints.cc: ...here.
* lra-eliminations.c: Moved to...
* lra-eliminations.cc: ...here.
* lra-lives.c: Moved to...
* lra-lives.cc: ...here.
* lra-remat.c: Moved to...
* lra-remat.cc: ...here.
* lra-spills.c: Moved to...
* lra-spills.cc: ...here.
* lra.c: Moved to...
* lra.cc: ...here.
* lto-cgraph.c: Moved to...
* lto-cgraph.cc: ...here.
* lto-compress.c: Moved to...
* lto-compress.cc: ...here.
* lto-opts.c: Moved to...
* lto-opts.cc: ...here.
* lto-section-in.c: Moved to...
* lto-section-in.cc: ...here.
* lto-section-out.c: Moved to...
* lto-section-out.cc: ...here.
* lto-streamer-in.c: Moved to...
* lto-streamer-in.cc: ...here.
* lto-streamer-out.c: Moved to...
* lto-streamer-out.cc: ...here.
* lto-streamer.c: Moved to...
* lto-streamer.cc: ...here.
* lto-wrapper.c: Moved to...
* lto-wrapper.cc: ...here.
* main.c: Moved to...
* main.cc: ...here.
* mcf.c: Moved to...
* mcf.cc: ...here.
* mode-switching.c: Moved to...
* mode-switching.cc: ...here.
* modulo-sched.c: Moved to...
* modulo-sched.cc: ...here.
* multiple_target.c: Moved to...
* multiple_target.cc: ...here.
* omp-expand.c: Moved to...
* omp-expand.cc: ...here.
* omp-general.c: Moved to...
* omp-general.cc: ...here.
* omp-low.c: Moved to...
* omp-low.cc: ...here.
* omp-offload.c: Moved to...
* omp-offload.cc: ...here.
* omp-simd-clone.c: Moved to...
* omp-simd-clone.cc: ...here.
* opt-suggestions.c: Moved to...
* opt-suggestions.cc: ...here.
* optabs-libfuncs.c: Moved to...
* optabs-libfuncs.cc: ...here.
* optabs-query.c: Moved to...
* optabs-query.cc: ...here.
* optabs-tree.c: Moved to...
* optabs-tree.cc: ...here.
* optabs.c: Moved to...
* optabs.cc: ...here.
* opts-common.c: Moved to...
* opts-common.cc: ...here.
* opts-global.c: Moved to...
* opts-global.cc: ...here.
* opts.c: Moved to...
* opts.cc: ...here.
* passes.c: Moved to...
* passes.cc: ...here.
* plugin.c: Moved to...
* plugin.cc: ...here.
* postreload-gcse.c: Moved to...
* postreload-gcse.cc: ...here.
* postreload.c: Moved to...
* postreload.cc: ...here.
* predict.c: Moved to...
* predict.cc: ...here.
* prefix.c: Moved to...
* prefix.cc: ...here.
* pretty-print.c: Moved to...
* pretty-print.cc: ...here.
* print-rtl-function.c: Moved to...
* print-rtl-function.cc: ...here.
* print-rtl.c: Moved to...
* print-rtl.cc: ...here.
* print-tree.c: Moved to...
* print-tree.cc: ...here.
* profile-count.c: Moved to...
* profile-count.cc: ...here.
* profile.c: Moved to...
* profile.cc: ...here.
* read-md.c: Moved to...
* read-md.cc: ...here.
* read-rtl-function.c: Moved to...
* read-rtl-function.cc: ...here.
* read-rtl.c: Moved to...
* read-rtl.cc: ...here.
* real.c: Moved to...
* real.cc: ...here.
* realmpfr.c: Moved to...
* realmpfr.cc: ...here.
* recog.c: Moved to...
* recog.cc: ...here.
* ree.c: Moved to...
* ree.cc: ...here.
* reg-stack.c: Moved to...
* reg-stack.cc: ...here.
* regcprop.c: Moved to...
* regcprop.cc: ...here.
* reginfo.c: Moved to...
* reginfo.cc: ...here.
* regrename.c: Moved to...
* regrename.cc: ...here.
* regstat.c: Moved to...
* regstat.cc: ...here.
* reload.c: Moved to...
* reload.cc: ...here.
* reload1.c: Moved to...
* reload1.cc: ...here.
* reorg.c: Moved to...
* reorg.cc: ...here.
* resource.c: Moved to...
* resource.cc: ...here.
* rtl-error.c: Moved to...
* rtl-error.cc: ...here.
* rtl-tests.c: Moved to...
* rtl-tests.cc: ...here.
* rtl.c: Moved to...
* rtl.cc: ...here.
* rtlanal.c: Moved to...
* rtlanal.cc: ...here.
* rtlhash.c: Moved to...
* rtlhash.cc: ...here.
* rtlhooks.c: Moved to...
* rtlhooks.cc: ...here.
* rtx-vector-builder.c: Moved to...
* rtx-vector-builder.cc: ...here.
* run-rtl-passes.c: Moved to...
* run-rtl-passes.cc: ...here.
* sancov.c: Moved to...
* sancov.cc: ...here.
* sanopt.c: Moved to...
* sanopt.cc: ...here.
* sbitmap.c: Moved to...
* sbitmap.cc: ...here.
* sched-deps.c: Moved to...
* sched-deps.cc: ...here.
* sched-ebb.c: Moved to...
* sched-ebb.cc: ...here.
* sched-rgn.c: Moved to...
* sched-rgn.cc: ...here.
* sel-sched-dump.c: Moved to...
* sel-sched-dump.cc: ...here.
* sel-sched-ir.c: Moved to...
* sel-sched-ir.cc: ...here.
* sel-sched.c: Moved to...
* sel-sched.cc: ...here.
* selftest-diagnostic.c: Moved to...
* selftest-diagnostic.cc: ...here.
* selftest-rtl.c: Moved to...
* selftest-rtl.cc: ...here.
* selftest-run-tests.c: Moved to...
* selftest-run-tests.cc: ...here.
* selftest.c: Moved to...
* selftest.cc: ...here.
* sese.c: Moved to...
* sese.cc: ...here.
* shrink-wrap.c: Moved to...
* shrink-wrap.cc: ...here.
* simplify-rtx.c: Moved to...
* simplify-rtx.cc: ...here.
* sparseset.c: Moved to...
* sparseset.cc: ...here.
* spellcheck-tree.c: Moved to...
* spellcheck-tree.cc: ...here.
* spellcheck.c: Moved to...
* spellcheck.cc: ...here.
* sreal.c: Moved to...
* sreal.cc: ...here.
* stack-ptr-mod.c: Moved to...
* stack-ptr-mod.cc: ...here.
* statistics.c: Moved to...
* statistics.cc: ...here.
* stmt.c: Moved to...
* stmt.cc: ...here.
* stor-layout.c: Moved to...
* stor-layout.cc: ...here.
* store-motion.c: Moved to...
* store-motion.cc: ...here.
* streamer-hooks.c: Moved to...
* streamer-hooks.cc: ...here.
* stringpool.c: Moved to...
* stringpool.cc: ...here.
* substring-locations.c: Moved to...
* substring-locations.cc: ...here.
* symtab.c: Moved to...
* symtab.cc: ...here.
* target-globals.c: Moved to...
* target-globals.cc: ...here.
* targhooks.c: Moved to...
* targhooks.cc: ...here.
* timevar.c: Moved to...
* timevar.cc: ...here.
* toplev.c: Moved to...
* toplev.cc: ...here.
* tracer.c: Moved to...
* tracer.cc: ...here.
* trans-mem.c: Moved to...
* trans-mem.cc: ...here.
* tree-affine.c: Moved to...
* tree-affine.cc: ...here.
* tree-call-cdce.c: Moved to...
* tree-call-cdce.cc: ...here.
* tree-cfg.c: Moved to...
* tree-cfg.cc: ...here.
* tree-cfgcleanup.c: Moved to...
* tree-cfgcleanup.cc: ...here.
* tree-chrec.c: Moved to...
* tree-chrec.cc: ...here.
* tree-complex.c: Moved to...
* tree-complex.cc: ...here.
* tree-data-ref.c: Moved to...
* tree-data-ref.cc: ...here.
* tree-dfa.c: Moved to...
* tree-dfa.cc: ...here.
* tree-diagnostic.c: Moved to...
* tree-diagnostic.cc: ...here.
* tree-dump.c: Moved to...
* tree-dump.cc: ...here.
* tree-eh.c: Moved to...
* tree-eh.cc: ...here.
* tree-emutls.c: Moved to...
* tree-emutls.cc: ...here.
* tree-if-conv.c: Moved to...
* tree-if-conv.cc: ...here.
* tree-inline.c: Moved to...
* tree-inline.cc: ...here.
* tree-into-ssa.c: Moved to...
* tree-into-ssa.cc: ...here.
* tree-iterator.c: Moved to...
* tree-iterator.cc: ...here.
* tree-loop-distribution.c: Moved to...
* tree-loop-distribution.cc: ...here.
* tree-nested.c: Moved to...
* tree-nested.cc: ...here.
* tree-nrv.c: Moved to...
* tree-nrv.cc: ...here.
* tree-object-size.c: Moved to...
* tree-object-size.cc: ...here.
* tree-outof-ssa.c: Moved to...
* tree-outof-ssa.cc: ...here.
* tree-parloops.c: Moved to...
* tree-parloops.cc: ...here.
* tree-phinodes.c: Moved to...
* tree-phinodes.cc: ...here.
* tree-predcom.c: Moved to...
* tree-predcom.cc: ...here.
* tree-pretty-print.c: Moved to...
* tree-pretty-print.cc: ...here.
* tree-profile.c: Moved to...
* tree-profile.cc: ...here.
* tree-scalar-evolution.c: Moved to...
* tree-scalar-evolution.cc: ...here.
* tree-sra.c: Moved to...
* tree-sra.cc: ...here.
* tree-ssa-address.c: Moved to...
* tree-ssa-address.cc: ...here.
* tree-ssa-alias.c: Moved to...
* tree-ssa-alias.cc: ...here.
* tree-ssa-ccp.c: Moved to...
* tree-ssa-ccp.cc: ...here.
* tree-ssa-coalesce.c: Moved to...
* tree-ssa-coalesce.cc: ...here.
* tree-ssa-copy.c: Moved to...
* tree-ssa-copy.cc: ...here.
* tree-ssa-dce.c: Moved to...
* tree-ssa-dce.cc: ...here.
* tree-ssa-dom.c: Moved to...
* tree-ssa-dom.cc: ...here.
* tree-ssa-dse.c: Moved to...
* tree-ssa-dse.cc: ...here.
* tree-ssa-forwprop.c: Moved to...
* tree-ssa-forwprop.cc: ...here.
* tree-ssa-ifcombine.c: Moved to...
* tree-ssa-ifcombine.cc: ...here.
* tree-ssa-live.c: Moved to...
* tree-ssa-live.cc: ...here.
* tree-ssa-loop-ch.c: Moved to...
* tree-ssa-loop-ch.cc: ...here.
* tree-ssa-loop-im.c: Moved to...
* tree-ssa-loop-im.cc: ...here.
* tree-ssa-loop-ivcanon.c: Moved to...
* tree-ssa-loop-ivcanon.cc: ...here.
* tree-ssa-loop-ivopts.c: Moved to...
* tree-ssa-loop-ivopts.cc: ...here.
* tree-ssa-loop-manip.c: Moved to...
* tree-ssa-loop-manip.cc: ...here.
* tree-ssa-loop-niter.c: Moved to...
* tree-ssa-loop-niter.cc: ...here.
* tree-ssa-loop-prefetch.c: Moved to...
* tree-ssa-loop-prefetch.cc: ...here.
* tree-ssa-loop-split.c: Moved to...
* tree-ssa-loop-split.cc: ...here.
* tree-ssa-loop-unswitch.c: Moved to...
* tree-ssa-loop-unswitch.cc: ...here.
* tree-ssa-loop.c: Moved to...
* tree-ssa-loop.cc: ...here.
* tree-ssa-math-opts.c: Moved to...
* tree-ssa-math-opts.cc: ...here.
* tree-ssa-operands.c: Moved to...
* tree-ssa-operands.cc: ...here.
* tree-ssa-phiopt.c: Moved to...
* tree-ssa-phiopt.cc: ...here.
* tree-ssa-phiprop.c: Moved to...
* tree-ssa-phiprop.cc: ...here.
* tree-ssa-pre.c: Moved to...
* tree-ssa-pre.cc: ...here.
* tree-ssa-propagate.c: Moved to...
* tree-ssa-propagate.cc: ...here.
* tree-ssa-reassoc.c: Moved to...
* tree-ssa-reassoc.cc: ...here.
* tree-ssa-sccvn.c: Moved to...
* tree-ssa-sccvn.cc: ...here.
* tree-ssa-scopedtables.c: Moved to...
* tree-ssa-scopedtables.cc: ...here.
* tree-ssa-sink.c: Moved to...
* tree-ssa-sink.cc: ...here.
* tree-ssa-strlen.c: Moved to...
* tree-ssa-strlen.cc: ...here.
* tree-ssa-structalias.c: Moved to...
* tree-ssa-structalias.cc: ...here.
* tree-ssa-tail-merge.c: Moved to...
* tree-ssa-tail-merge.cc: ...here.
* tree-ssa-ter.c: Moved to...
* tree-ssa-ter.cc: ...here.
* tree-ssa-threadbackward.c: Moved to...
* tree-ssa-threadbackward.cc: ...here.
* tree-ssa-threadedge.c: Moved to...
* tree-ssa-threadedge.cc: ...here.
* tree-ssa-threadupdate.c: Moved to...
* tree-ssa-threadupdate.cc: ...here.
* tree-ssa-uncprop.c: Moved to...
* tree-ssa-uncprop.cc: ...here.
* tree-ssa-uninit.c: Moved to...
* tree-ssa-uninit.cc: ...here.
* tree-ssa.c: Moved to...
* tree-ssa.cc: ...here.
* tree-ssanames.c: Moved to...
* tree-ssanames.cc: ...here.
* tree-stdarg.c: Moved to...
* tree-stdarg.cc: ...here.
* tree-streamer-in.c: Moved to...
* tree-streamer-in.cc: ...here.
* tree-streamer-out.c: Moved to...
* tree-streamer-out.cc: ...here.
* tree-streamer.c: Moved to...
* tree-streamer.cc: ...here.
* tree-switch-conversion.c: Moved to...
* tree-switch-conversion.cc: ...here.
* tree-tailcall.c: Moved to...
* tree-tailcall.cc: ...here.
* tree-vect-data-refs.c: Moved to...
* tree-vect-data-refs.cc: ...here.
* tree-vect-generic.c: Moved to...
* tree-vect-generic.cc: ...here.
* tree-vect-loop-manip.c: Moved to...
* tree-vect-loop-manip.cc: ...here.
* tree-vect-loop.c: Moved to...
* tree-vect-loop.cc: ...here.
* tree-vect-patterns.c: Moved to...
* tree-vect-patterns.cc: ...here.
* tree-vect-slp-patterns.c: Moved to...
* tree-vect-slp-patterns.cc: ...here.
* tree-vect-slp.c: Moved to...
* tree-vect-slp.cc: ...here.
* tree-vect-stmts.c: Moved to...
* tree-vect-stmts.cc: ...here.
* tree-vector-builder.c: Moved to...
* tree-vector-builder.cc: ...here.
* tree-vectorizer.c: Moved to...
* tree-vectorizer.cc: ...here.
* tree-vrp.c: Moved to...
* tree-vrp.cc: ...here.
* tree.c: Moved to...
* tree.cc: ...here.
* tsan.c: Moved to...
* tsan.cc: ...here.
* typed-splay-tree.c: Moved to...
* typed-splay-tree.cc: ...here.
* ubsan.c: Moved to...
* ubsan.cc: ...here.
* valtrack.c: Moved to...
* valtrack.cc: ...here.
* value-prof.c: Moved to...
* value-prof.cc: ...here.
* var-tracking.c: Moved to...
* var-tracking.cc: ...here.
* varasm.c: Moved to...
* varasm.cc: ...here.
* varpool.c: Moved to...
* varpool.cc: ...here.
* vec-perm-indices.c: Moved to...
* vec-perm-indices.cc: ...here.
* vec.c: Moved to...
* vec.cc: ...here.
* vmsdbgout.c: Moved to...
* vmsdbgout.cc: ...here.
* vr-values.c: Moved to...
* vr-values.cc: ...here.
* vtable-verify.c: Moved to...
* vtable-verify.cc: ...here.
* web.c: Moved to...
* web.cc: ...here.
* xcoffout.c: Moved to...
* xcoffout.cc: ...here.
gcc/c-family/ChangeLog:
* c-ada-spec.c: Moved to...
* c-ada-spec.cc: ...here.
* c-attribs.c: Moved to...
* c-attribs.cc: ...here.
* c-common.c: Moved to...
* c-common.cc: ...here.
* c-cppbuiltin.c: Moved to...
* c-cppbuiltin.cc: ...here.
* c-dump.c: Moved to...
* c-dump.cc: ...here.
* c-format.c: Moved to...
* c-format.cc: ...here.
* c-gimplify.c: Moved to...
* c-gimplify.cc: ...here.
* c-indentation.c: Moved to...
* c-indentation.cc: ...here.
* c-lex.c: Moved to...
* c-lex.cc: ...here.
* c-omp.c: Moved to...
* c-omp.cc: ...here.
* c-opts.c: Moved to...
* c-opts.cc: ...here.
* c-pch.c: Moved to...
* c-pch.cc: ...here.
* c-ppoutput.c: Moved to...
* c-ppoutput.cc: ...here.
* c-pragma.c: Moved to...
* c-pragma.cc: ...here.
* c-pretty-print.c: Moved to...
* c-pretty-print.cc: ...here.
* c-semantics.c: Moved to...
* c-semantics.cc: ...here.
* c-ubsan.c: Moved to...
* c-ubsan.cc: ...here.
* c-warn.c: Moved to...
* c-warn.cc: ...here.
* cppspec.c: Moved to...
* cppspec.cc: ...here.
* stub-objc.c: Moved to...
* stub-objc.cc: ...here.
gcc/c/ChangeLog:
* c-aux-info.c: Moved to...
* c-aux-info.cc: ...here.
* c-convert.c: Moved to...
* c-convert.cc: ...here.
* c-decl.c: Moved to...
* c-decl.cc: ...here.
* c-errors.c: Moved to...
* c-errors.cc: ...here.
* c-fold.c: Moved to...
* c-fold.cc: ...here.
* c-lang.c: Moved to...
* c-lang.cc: ...here.
* c-objc-common.c: Moved to...
* c-objc-common.cc: ...here.
* c-parser.c: Moved to...
* c-parser.cc: ...here.
* c-typeck.c: Moved to...
* c-typeck.cc: ...here.
* gccspec.c: Moved to...
* gccspec.cc: ...here.
* gimple-parser.c: Moved to...
* gimple-parser.cc: ...here.
gcc/cp/ChangeLog:
* call.c: Moved to...
* call.cc: ...here.
* class.c: Moved to...
* class.cc: ...here.
* constexpr.c: Moved to...
* constexpr.cc: ...here.
* cp-gimplify.c: Moved to...
* cp-gimplify.cc: ...here.
* cp-lang.c: Moved to...
* cp-lang.cc: ...here.
* cp-objcp-common.c: Moved to...
* cp-objcp-common.cc: ...here.
* cp-ubsan.c: Moved to...
* cp-ubsan.cc: ...here.
* cvt.c: Moved to...
* cvt.cc: ...here.
* cxx-pretty-print.c: Moved to...
* cxx-pretty-print.cc: ...here.
* decl.c: Moved to...
* decl.cc: ...here.
* decl2.c: Moved to...
* decl2.cc: ...here.
* dump.c: Moved to...
* dump.cc: ...here.
* error.c: Moved to...
* error.cc: ...here.
* except.c: Moved to...
* except.cc: ...here.
* expr.c: Moved to...
* expr.cc: ...here.
* friend.c: Moved to...
* friend.cc: ...here.
* g++spec.c: Moved to...
* g++spec.cc: ...here.
* init.c: Moved to...
* init.cc: ...here.
* lambda.c: Moved to...
* lambda.cc: ...here.
* lex.c: Moved to...
* lex.cc: ...here.
* mangle.c: Moved to...
* mangle.cc: ...here.
* method.c: Moved to...
* method.cc: ...here.
* name-lookup.c: Moved to...
* name-lookup.cc: ...here.
* optimize.c: Moved to...
* optimize.cc: ...here.
* parser.c: Moved to...
* parser.cc: ...here.
* pt.c: Moved to...
* pt.cc: ...here.
* ptree.c: Moved to...
* ptree.cc: ...here.
* rtti.c: Moved to...
* rtti.cc: ...here.
* search.c: Moved to...
* search.cc: ...here.
* semantics.c: Moved to...
* semantics.cc: ...here.
* tree.c: Moved to...
* tree.cc: ...here.
* typeck.c: Moved to...
* typeck.cc: ...here.
* typeck2.c: Moved to...
* typeck2.cc: ...here.
* vtable-class-hierarchy.c: Moved to...
* vtable-class-hierarchy.cc: ...here.
gcc/fortran/ChangeLog:
* arith.c: Moved to...
* arith.cc: ...here.
* array.c: Moved to...
* array.cc: ...here.
* bbt.c: Moved to...
* bbt.cc: ...here.
* check.c: Moved to...
* check.cc: ...here.
* class.c: Moved to...
* class.cc: ...here.
* constructor.c: Moved to...
* constructor.cc: ...here.
* convert.c: Moved to...
* convert.cc: ...here.
* cpp.c: Moved to...
* cpp.cc: ...here.
* data.c: Moved to...
* data.cc: ...here.
* decl.c: Moved to...
* decl.cc: ...here.
* dependency.c: Moved to...
* dependency.cc: ...here.
* dump-parse-tree.c: Moved to...
* dump-parse-tree.cc: ...here.
* error.c: Moved to...
* error.cc: ...here.
* expr.c: Moved to...
* expr.cc: ...here.
* f95-lang.c: Moved to...
* f95-lang.cc: ...here.
* frontend-passes.c: Moved to...
* frontend-passes.cc: ...here.
* gfortranspec.c: Moved to...
* gfortranspec.cc: ...here.
* interface.c: Moved to...
* interface.cc: ...here.
* intrinsic.c: Moved to...
* intrinsic.cc: ...here.
* io.c: Moved to...
* io.cc: ...here.
* iresolve.c: Moved to...
* iresolve.cc: ...here.
* match.c: Moved to...
* match.cc: ...here.
* matchexp.c: Moved to...
* matchexp.cc: ...here.
* misc.c: Moved to...
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Diffstat (limited to 'gcc/caller-save.cc')
-rw-r--r-- | gcc/caller-save.cc | 1400 |
1 files changed, 1400 insertions, 0 deletions
diff --git a/gcc/caller-save.cc b/gcc/caller-save.cc new file mode 100644 index 00000000000..5ef1b63e852 --- /dev/null +++ b/gcc/caller-save.cc @@ -0,0 +1,1400 @@ +/* Save and restore call-clobbered registers which are live across a call. + Copyright (C) 1989-2022 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 "rtl.h" +#include "tree.h" +#include "predict.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 "reload.h" +#include "alias.h" +#include "addresses.h" +#include "dumpfile.h" +#include "rtl-iter.h" +#include "target.h" +#include "function-abi.h" + +#define MOVE_MAX_WORDS (MOVE_MAX / UNITS_PER_WORD) + +#define regno_save_mode \ + (this_target_reload->x_regno_save_mode) +#define cached_reg_save_code \ + (this_target_reload->x_cached_reg_save_code) +#define cached_reg_restore_code \ + (this_target_reload->x_cached_reg_restore_code) + +/* For each hard register, a place on the stack where it can be saved, + if needed. */ + +static rtx + regno_save_mem[FIRST_PSEUDO_REGISTER][MAX_MOVE_MAX / MIN_UNITS_PER_WORD + 1]; + +/* The number of elements in the subsequent array. */ +static int save_slots_num; + +/* Allocated slots so far. */ +static rtx save_slots[FIRST_PSEUDO_REGISTER]; + +/* Set of hard regs currently residing in save area (during insn scan). */ + +static HARD_REG_SET hard_regs_saved; + +/* Number of registers currently in hard_regs_saved. */ + +static int n_regs_saved; + +/* Computed by mark_referenced_regs, all regs referenced in a given + insn. */ +static HARD_REG_SET referenced_regs; + + +typedef void refmarker_fn (rtx *loc, machine_mode mode, int hardregno, + void *mark_arg); + +static int reg_save_code (int, machine_mode); +static int reg_restore_code (int, machine_mode); + +struct saved_hard_reg; +static void initiate_saved_hard_regs (void); +static void new_saved_hard_reg (int, int); +static void finish_saved_hard_regs (void); +static int saved_hard_reg_compare_func (const void *, const void *); + +static void mark_set_regs (rtx, const_rtx, void *); +static void mark_referenced_regs (rtx *, refmarker_fn *mark, void *mark_arg); +static refmarker_fn mark_reg_as_referenced; +static refmarker_fn replace_reg_with_saved_mem; +static int insert_save (class insn_chain *, int, HARD_REG_SET *, + machine_mode *); +static int insert_restore (class insn_chain *, int, int, int, + machine_mode *); +static class insn_chain *insert_one_insn (class insn_chain *, int, int, + rtx); +static void add_stored_regs (rtx, const_rtx, void *); + + + +static GTY(()) rtx savepat; +static GTY(()) rtx restpat; +static GTY(()) rtx test_reg; +static GTY(()) rtx test_mem; +static GTY(()) rtx_insn *saveinsn; +static GTY(()) rtx_insn *restinsn; + +/* Return the INSN_CODE used to save register REG in mode MODE. */ +static int +reg_save_code (int reg, machine_mode mode) +{ + bool ok; + if (cached_reg_save_code[reg][mode]) + return cached_reg_save_code[reg][mode]; + if (!targetm.hard_regno_mode_ok (reg, mode)) + { + /* Depending on how targetm.hard_regno_mode_ok is defined, range + propagation might deduce here that reg >= FIRST_PSEUDO_REGISTER. + So the assert below silences a warning. */ + gcc_assert (reg < FIRST_PSEUDO_REGISTER); + cached_reg_save_code[reg][mode] = -1; + cached_reg_restore_code[reg][mode] = -1; + return -1; + } + + /* Update the register number and modes of the register + and memory operand. */ + set_mode_and_regno (test_reg, mode, reg); + PUT_MODE (test_mem, mode); + + /* Force re-recognition of the modified insns. */ + INSN_CODE (saveinsn) = -1; + INSN_CODE (restinsn) = -1; + + cached_reg_save_code[reg][mode] = recog_memoized (saveinsn); + cached_reg_restore_code[reg][mode] = recog_memoized (restinsn); + + /* Now extract both insns and see if we can meet their + constraints. We don't know here whether the save and restore will + be in size- or speed-tuned code, so just use the set of enabled + alternatives. */ + ok = (cached_reg_save_code[reg][mode] != -1 + && cached_reg_restore_code[reg][mode] != -1); + if (ok) + { + extract_insn (saveinsn); + ok = constrain_operands (1, get_enabled_alternatives (saveinsn)); + extract_insn (restinsn); + ok &= constrain_operands (1, get_enabled_alternatives (restinsn)); + } + + if (! ok) + { + cached_reg_save_code[reg][mode] = -1; + cached_reg_restore_code[reg][mode] = -1; + } + gcc_assert (cached_reg_save_code[reg][mode]); + return cached_reg_save_code[reg][mode]; +} + +/* Return the INSN_CODE used to restore register REG in mode MODE. */ +static int +reg_restore_code (int reg, machine_mode mode) +{ + if (cached_reg_restore_code[reg][mode]) + return cached_reg_restore_code[reg][mode]; + /* Populate our cache. */ + reg_save_code (reg, mode); + return cached_reg_restore_code[reg][mode]; +} + +/* Initialize for caller-save. + + Look at all the hard registers that are used by a call and for which + reginfo.c has not already excluded from being used across a call. + + Ensure that we can find a mode to save the register and that there is a + simple insn to save and restore the register. This latter check avoids + problems that would occur if we tried to save the MQ register of some + machines directly into memory. */ + +void +init_caller_save (void) +{ + rtx addr_reg; + int offset; + rtx address; + int i, j; + + if (caller_save_initialized_p) + return; + + caller_save_initialized_p = true; + + /* First find all the registers that we need to deal with and all + the modes that they can have. If we can't find a mode to use, + we can't have the register live over calls. */ + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + for (j = 1; j <= MOVE_MAX_WORDS; j++) + { + regno_save_mode[i][j] = HARD_REGNO_CALLER_SAVE_MODE (i, j, VOIDmode); + if (regno_save_mode[i][j] == VOIDmode && j == 1) + CLEAR_HARD_REG_BIT (savable_regs, i); + } + + /* The following code tries to approximate the conditions under which + we can easily save and restore a register without scratch registers or + other complexities. It will usually work, except under conditions where + the validity of an insn operand is dependent on the address offset. + No such cases are currently known. + + We first find a typical offset from some BASE_REG_CLASS register. + This address is chosen by finding the first register in the class + and by finding the smallest power of two that is a valid offset from + that register in every mode we will use to save registers. */ + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + if (TEST_HARD_REG_BIT + (reg_class_contents + [(int) base_reg_class (regno_save_mode[i][1], ADDR_SPACE_GENERIC, + PLUS, CONST_INT)], i)) + break; + + gcc_assert (i < FIRST_PSEUDO_REGISTER); + + addr_reg = gen_rtx_REG (Pmode, i); + + for (offset = 1 << (HOST_BITS_PER_INT / 2); offset; offset >>= 1) + { + address = gen_rtx_PLUS (Pmode, addr_reg, gen_int_mode (offset, Pmode)); + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + if (regno_save_mode[i][1] != VOIDmode + && ! strict_memory_address_p (regno_save_mode[i][1], address)) + break; + + if (i == FIRST_PSEUDO_REGISTER) + break; + } + + /* If we didn't find a valid address, we must use register indirect. */ + if (offset == 0) + address = addr_reg; + + /* Next we try to form an insn to save and restore the register. We + see if such an insn is recognized and meets its constraints. + + To avoid lots of unnecessary RTL allocation, we construct all the RTL + once, then modify the memory and register operands in-place. */ + + test_reg = gen_rtx_REG (word_mode, LAST_VIRTUAL_REGISTER + 1); + test_mem = gen_rtx_MEM (word_mode, address); + savepat = gen_rtx_SET (test_mem, test_reg); + restpat = gen_rtx_SET (test_reg, test_mem); + + saveinsn = gen_rtx_INSN (VOIDmode, 0, 0, 0, savepat, 0, -1, 0); + restinsn = gen_rtx_INSN (VOIDmode, 0, 0, 0, restpat, 0, -1, 0); + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + for (j = 1; j <= MOVE_MAX_WORDS; j++) + if (reg_save_code (i,regno_save_mode[i][j]) == -1) + { + regno_save_mode[i][j] = VOIDmode; + if (j == 1) + CLEAR_HARD_REG_BIT (savable_regs, i); + } +} + + + +/* Initialize save areas by showing that we haven't allocated any yet. */ + +void +init_save_areas (void) +{ + int i, j; + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + for (j = 1; j <= MOVE_MAX_WORDS; j++) + regno_save_mem[i][j] = 0; + save_slots_num = 0; + +} + +/* The structure represents a hard register which should be saved + through the call. It is used when the integrated register + allocator (IRA) is used and sharing save slots is on. */ +struct saved_hard_reg +{ + /* Order number starting with 0. */ + int num; + /* The hard regno. */ + int hard_regno; + /* Execution frequency of all calls through which given hard + register should be saved. */ + int call_freq; + /* Stack slot reserved to save the hard register through calls. */ + rtx slot; + /* True if it is first hard register in the chain of hard registers + sharing the same stack slot. */ + int first_p; + /* Order number of the next hard register structure with the same + slot in the chain. -1 represents end of the chain. */ + int next; +}; + +/* Map: hard register number to the corresponding structure. */ +static struct saved_hard_reg *hard_reg_map[FIRST_PSEUDO_REGISTER]; + +/* The number of all structures representing hard registers should be + saved, in order words, the number of used elements in the following + array. */ +static int saved_regs_num; + +/* Pointers to all the structures. Index is the order number of the + corresponding structure. */ +static struct saved_hard_reg *all_saved_regs[FIRST_PSEUDO_REGISTER]; + +/* First called function for work with saved hard registers. */ +static void +initiate_saved_hard_regs (void) +{ + int i; + + saved_regs_num = 0; + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + hard_reg_map[i] = NULL; +} + +/* Allocate and return new saved hard register with given REGNO and + CALL_FREQ. */ +static void +new_saved_hard_reg (int regno, int call_freq) +{ + struct saved_hard_reg *saved_reg; + + saved_reg + = (struct saved_hard_reg *) xmalloc (sizeof (struct saved_hard_reg)); + hard_reg_map[regno] = all_saved_regs[saved_regs_num] = saved_reg; + saved_reg->num = saved_regs_num++; + saved_reg->hard_regno = regno; + saved_reg->call_freq = call_freq; + saved_reg->first_p = FALSE; + saved_reg->next = -1; +} + +/* Free memory allocated for the saved hard registers. */ +static void +finish_saved_hard_regs (void) +{ + int i; + + for (i = 0; i < saved_regs_num; i++) + free (all_saved_regs[i]); +} + +/* The function is used to sort the saved hard register structures + according their frequency. */ +static int +saved_hard_reg_compare_func (const void *v1p, const void *v2p) +{ + const struct saved_hard_reg *p1 = *(struct saved_hard_reg * const *) v1p; + const struct saved_hard_reg *p2 = *(struct saved_hard_reg * const *) v2p; + + if (flag_omit_frame_pointer) + { + if (p1->call_freq - p2->call_freq != 0) + return p1->call_freq - p2->call_freq; + } + else if (p2->call_freq - p1->call_freq != 0) + return p2->call_freq - p1->call_freq; + + return p1->num - p2->num; +} + +/* Allocate save areas for any hard registers that might need saving. + We take a conservative approach here and look for call-clobbered hard + registers that are assigned to pseudos that cross calls. This may + overestimate slightly (especially if some of these registers are later + used as spill registers), but it should not be significant. + + For IRA we use priority coloring to decrease stack slots needed for + saving hard registers through calls. We build conflicts for them + to do coloring. + + Future work: + + In the fallback case we should iterate backwards across all possible + modes for the save, choosing the largest available one instead of + falling back to the smallest mode immediately. (eg TF -> DF -> SF). + + We do not try to use "move multiple" instructions that exist + on some machines (such as the 68k moveml). It could be a win to try + and use them when possible. The hard part is doing it in a way that is + machine independent since they might be saving non-consecutive + registers. (imagine caller-saving d0,d1,a0,a1 on the 68k) */ + +void +setup_save_areas (void) +{ + int i, j, k, freq; + HARD_REG_SET hard_regs_used; + struct saved_hard_reg *saved_reg; + rtx_insn *insn; + class insn_chain *chain, *next; + unsigned int regno; + HARD_REG_SET hard_regs_to_save, used_regs, this_insn_sets; + reg_set_iterator rsi; + + CLEAR_HARD_REG_SET (hard_regs_used); + + /* Find every CALL_INSN and record which hard regs are live across the + call into HARD_REG_MAP and HARD_REGS_USED. */ + initiate_saved_hard_regs (); + /* Create hard reg saved regs. */ + for (chain = reload_insn_chain; chain != 0; chain = next) + { + rtx cheap; + + insn = chain->insn; + next = chain->next; + if (!CALL_P (insn) + || find_reg_note (insn, REG_NORETURN, NULL)) + continue; + freq = REG_FREQ_FROM_BB (BLOCK_FOR_INSN (insn)); + REG_SET_TO_HARD_REG_SET (hard_regs_to_save, + &chain->live_throughout); + used_regs = insn_callee_abi (insn).full_reg_clobbers (); + + /* Record all registers set in this call insn. These don't + need to be saved. N.B. the call insn might set a subreg + of a multi-hard-reg pseudo; then the pseudo is considered + live during the call, but the subreg that is set + isn't. */ + CLEAR_HARD_REG_SET (this_insn_sets); + note_stores (insn, mark_set_regs, &this_insn_sets); + /* Sibcalls are considered to set the return value. */ + if (SIBLING_CALL_P (insn) && crtl->return_rtx) + mark_set_regs (crtl->return_rtx, NULL_RTX, &this_insn_sets); + + used_regs &= ~(fixed_reg_set | this_insn_sets); + hard_regs_to_save &= used_regs & savable_regs; + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_to_save, regno)) + { + if (hard_reg_map[regno] != NULL) + hard_reg_map[regno]->call_freq += freq; + else + new_saved_hard_reg (regno, freq); + SET_HARD_REG_BIT (hard_regs_used, regno); + } + cheap = find_reg_note (insn, REG_RETURNED, NULL); + if (cheap) + cheap = XEXP (cheap, 0); + /* Look through all live pseudos, mark their hard registers. */ + EXECUTE_IF_SET_IN_REG_SET + (&chain->live_throughout, FIRST_PSEUDO_REGISTER, regno, rsi) + { + int r = reg_renumber[regno]; + int bound; + + if (r < 0 || regno_reg_rtx[regno] == cheap) + continue; + + bound = r + hard_regno_nregs (r, PSEUDO_REGNO_MODE (regno)); + for (; r < bound; r++) + if (TEST_HARD_REG_BIT (used_regs, r)) + { + if (hard_reg_map[r] != NULL) + hard_reg_map[r]->call_freq += freq; + else + new_saved_hard_reg (r, freq); + SET_HARD_REG_BIT (hard_regs_to_save, r); + SET_HARD_REG_BIT (hard_regs_used, r); + } + } + } + + /* If requested, figure out which hard regs can share save slots. */ + if (optimize && flag_ira_share_save_slots) + { + rtx slot; + char *saved_reg_conflicts; + int next_k; + struct saved_hard_reg *saved_reg2, *saved_reg3; + int call_saved_regs_num; + struct saved_hard_reg *call_saved_regs[FIRST_PSEUDO_REGISTER]; + int best_slot_num; + int prev_save_slots_num; + rtx prev_save_slots[FIRST_PSEUDO_REGISTER]; + + /* Find saved hard register conflicts. */ + saved_reg_conflicts = (char *) xmalloc (saved_regs_num * saved_regs_num); + memset (saved_reg_conflicts, 0, saved_regs_num * saved_regs_num); + for (chain = reload_insn_chain; chain != 0; chain = next) + { + rtx cheap; + call_saved_regs_num = 0; + insn = chain->insn; + next = chain->next; + if (!CALL_P (insn) + || find_reg_note (insn, REG_NORETURN, NULL)) + continue; + + cheap = find_reg_note (insn, REG_RETURNED, NULL); + if (cheap) + cheap = XEXP (cheap, 0); + + REG_SET_TO_HARD_REG_SET (hard_regs_to_save, + &chain->live_throughout); + used_regs = insn_callee_abi (insn).full_reg_clobbers (); + + /* Record all registers set in this call insn. These don't + need to be saved. N.B. the call insn might set a subreg + of a multi-hard-reg pseudo; then the pseudo is considered + live during the call, but the subreg that is set + isn't. */ + CLEAR_HARD_REG_SET (this_insn_sets); + note_stores (insn, mark_set_regs, &this_insn_sets); + /* Sibcalls are considered to set the return value, + compare df-scan.c:df_get_call_refs. */ + if (SIBLING_CALL_P (insn) && crtl->return_rtx) + mark_set_regs (crtl->return_rtx, NULL_RTX, &this_insn_sets); + + used_regs &= ~(fixed_reg_set | this_insn_sets); + hard_regs_to_save &= used_regs & savable_regs; + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_to_save, regno)) + { + gcc_assert (hard_reg_map[regno] != NULL); + call_saved_regs[call_saved_regs_num++] = hard_reg_map[regno]; + } + /* Look through all live pseudos, mark their hard registers. */ + EXECUTE_IF_SET_IN_REG_SET + (&chain->live_throughout, FIRST_PSEUDO_REGISTER, regno, rsi) + { + int r = reg_renumber[regno]; + int bound; + + if (r < 0 || regno_reg_rtx[regno] == cheap) + continue; + + bound = r + hard_regno_nregs (r, PSEUDO_REGNO_MODE (regno)); + for (; r < bound; r++) + if (TEST_HARD_REG_BIT (used_regs, r)) + call_saved_regs[call_saved_regs_num++] = hard_reg_map[r]; + } + for (i = 0; i < call_saved_regs_num; i++) + { + saved_reg = call_saved_regs[i]; + for (j = 0; j < call_saved_regs_num; j++) + if (i != j) + { + saved_reg2 = call_saved_regs[j]; + saved_reg_conflicts[saved_reg->num * saved_regs_num + + saved_reg2->num] + = saved_reg_conflicts[saved_reg2->num * saved_regs_num + + saved_reg->num] + = TRUE; + } + } + } + /* Sort saved hard regs. */ + qsort (all_saved_regs, saved_regs_num, sizeof (struct saved_hard_reg *), + saved_hard_reg_compare_func); + /* Initiate slots available from the previous reload + iteration. */ + prev_save_slots_num = save_slots_num; + memcpy (prev_save_slots, save_slots, save_slots_num * sizeof (rtx)); + save_slots_num = 0; + /* Allocate stack slots for the saved hard registers. */ + for (i = 0; i < saved_regs_num; i++) + { + saved_reg = all_saved_regs[i]; + regno = saved_reg->hard_regno; + for (j = 0; j < i; j++) + { + saved_reg2 = all_saved_regs[j]; + if (! saved_reg2->first_p) + continue; + slot = saved_reg2->slot; + for (k = j; k >= 0; k = next_k) + { + saved_reg3 = all_saved_regs[k]; + next_k = saved_reg3->next; + if (saved_reg_conflicts[saved_reg->num * saved_regs_num + + saved_reg3->num]) + break; + } + if (k < 0 + && known_le (GET_MODE_SIZE (regno_save_mode[regno][1]), + GET_MODE_SIZE (regno_save_mode + [saved_reg2->hard_regno][1]))) + { + saved_reg->slot + = adjust_address_nv + (slot, regno_save_mode[saved_reg->hard_regno][1], 0); + regno_save_mem[regno][1] = saved_reg->slot; + saved_reg->next = saved_reg2->next; + saved_reg2->next = i; + if (dump_file != NULL) + fprintf (dump_file, "%d uses slot of %d\n", + regno, saved_reg2->hard_regno); + break; + } + } + if (j == i) + { + saved_reg->first_p = TRUE; + for (best_slot_num = -1, j = 0; j < prev_save_slots_num; j++) + { + slot = prev_save_slots[j]; + if (slot == NULL_RTX) + continue; + if (known_le (GET_MODE_SIZE (regno_save_mode[regno][1]), + GET_MODE_SIZE (GET_MODE (slot))) + && best_slot_num < 0) + best_slot_num = j; + if (GET_MODE (slot) == regno_save_mode[regno][1]) + break; + } + if (best_slot_num >= 0) + { + saved_reg->slot = prev_save_slots[best_slot_num]; + saved_reg->slot + = adjust_address_nv + (saved_reg->slot, + regno_save_mode[saved_reg->hard_regno][1], 0); + if (dump_file != NULL) + fprintf (dump_file, + "%d uses a slot from prev iteration\n", regno); + prev_save_slots[best_slot_num] = NULL_RTX; + if (best_slot_num + 1 == prev_save_slots_num) + prev_save_slots_num--; + } + else + { + saved_reg->slot + = assign_stack_local_1 + (regno_save_mode[regno][1], + GET_MODE_SIZE (regno_save_mode[regno][1]), 0, + ASLK_REDUCE_ALIGN); + if (dump_file != NULL) + fprintf (dump_file, "%d uses a new slot\n", regno); + } + regno_save_mem[regno][1] = saved_reg->slot; + save_slots[save_slots_num++] = saved_reg->slot; + } + } + free (saved_reg_conflicts); + finish_saved_hard_regs (); + } + else + { + /* We are not sharing slots. + + Run through all the call-used hard-registers and allocate + space for each in the caller-save area. Try to allocate space + in a manner which allows multi-register saves/restores to be done. */ + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + for (j = MOVE_MAX_WORDS; j > 0; j--) + { + int do_save = 1; + + /* If no mode exists for this size, try another. Also break out + if we have already saved this hard register. */ + if (regno_save_mode[i][j] == VOIDmode || regno_save_mem[i][1] != 0) + continue; + + /* See if any register in this group has been saved. */ + for (k = 0; k < j; k++) + if (regno_save_mem[i + k][1]) + { + do_save = 0; + break; + } + if (! do_save) + continue; + + for (k = 0; k < j; k++) + if (! TEST_HARD_REG_BIT (hard_regs_used, i + k)) + { + do_save = 0; + break; + } + if (! do_save) + continue; + + /* We have found an acceptable mode to store in. Since + hard register is always saved in the widest mode + available, the mode may be wider than necessary, it is + OK to reduce the alignment of spill space. We will + verify that it is equal to or greater than required + when we restore and save the hard register in + insert_restore and insert_save. */ + regno_save_mem[i][j] + = assign_stack_local_1 (regno_save_mode[i][j], + GET_MODE_SIZE (regno_save_mode[i][j]), + 0, ASLK_REDUCE_ALIGN); + + /* Setup single word save area just in case... */ + for (k = 0; k < j; k++) + /* This should not depend on WORDS_BIG_ENDIAN. + The order of words in regs is the same as in memory. */ + regno_save_mem[i + k][1] + = adjust_address_nv (regno_save_mem[i][j], + regno_save_mode[i + k][1], + k * UNITS_PER_WORD); + } + } + + /* Now loop again and set the alias set of any save areas we made to + the alias set used to represent frame objects. */ + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + for (j = MOVE_MAX_WORDS; j > 0; j--) + if (regno_save_mem[i][j] != 0) + set_mem_alias_set (regno_save_mem[i][j], get_frame_alias_set ()); +} + + + +/* Find the places where hard regs are live across calls and save them. */ + +void +save_call_clobbered_regs (void) +{ + class insn_chain *chain, *next, *last = NULL; + machine_mode save_mode [FIRST_PSEUDO_REGISTER]; + + /* Computed in mark_set_regs, holds all registers set by the current + instruction. */ + HARD_REG_SET this_insn_sets; + + CLEAR_HARD_REG_SET (hard_regs_saved); + n_regs_saved = 0; + + for (chain = reload_insn_chain; chain != 0; chain = next) + { + rtx_insn *insn = chain->insn; + enum rtx_code code = GET_CODE (insn); + + next = chain->next; + + gcc_assert (!chain->is_caller_save_insn); + + if (NONDEBUG_INSN_P (insn)) + { + /* If some registers have been saved, see if INSN references + any of them. We must restore them before the insn if so. */ + + if (n_regs_saved) + { + int regno; + HARD_REG_SET this_insn_sets; + + if (code == JUMP_INSN) + /* Restore all registers if this is a JUMP_INSN. */ + referenced_regs = hard_regs_saved; + else + { + CLEAR_HARD_REG_SET (referenced_regs); + mark_referenced_regs (&PATTERN (insn), + mark_reg_as_referenced, NULL); + referenced_regs &= hard_regs_saved; + } + + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (referenced_regs, regno)) + regno += insert_restore (chain, 1, regno, MOVE_MAX_WORDS, + save_mode); + /* If a saved register is set after the call, this means we no + longer should restore it. This can happen when parts of a + multi-word pseudo do not conflict with other pseudos, so + IRA may allocate the same hard register for both. One may + be live across the call, while the other is set + afterwards. */ + CLEAR_HARD_REG_SET (this_insn_sets); + note_stores (insn, mark_set_regs, &this_insn_sets); + hard_regs_saved &= ~this_insn_sets; + } + + if (code == CALL_INSN + && ! SIBLING_CALL_P (insn) + && ! find_reg_note (insn, REG_NORETURN, NULL)) + { + unsigned regno; + HARD_REG_SET hard_regs_to_save; + reg_set_iterator rsi; + rtx cheap; + + cheap = find_reg_note (insn, REG_RETURNED, NULL); + if (cheap) + cheap = XEXP (cheap, 0); + + /* Use the register life information in CHAIN to compute which + regs are live during the call. */ + REG_SET_TO_HARD_REG_SET (hard_regs_to_save, + &chain->live_throughout); + /* Save hard registers always in the widest mode available. */ + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_to_save, regno)) + save_mode [regno] = regno_save_mode [regno][1]; + else + save_mode [regno] = VOIDmode; + + /* Look through all live pseudos, mark their hard registers + and choose proper mode for saving. */ + EXECUTE_IF_SET_IN_REG_SET + (&chain->live_throughout, FIRST_PSEUDO_REGISTER, regno, rsi) + { + int r = reg_renumber[regno]; + int nregs; + machine_mode mode; + + if (r < 0 || regno_reg_rtx[regno] == cheap) + continue; + nregs = hard_regno_nregs (r, PSEUDO_REGNO_MODE (regno)); + mode = HARD_REGNO_CALLER_SAVE_MODE + (r, nregs, PSEUDO_REGNO_MODE (regno)); + if (partial_subreg_p (save_mode[r], mode)) + save_mode[r] = mode; + while (nregs-- > 0) + SET_HARD_REG_BIT (hard_regs_to_save, r + nregs); + } + + /* Record all registers set in this call insn. These don't need + to be saved. N.B. the call insn might set a subreg of a + multi-hard-reg pseudo; then the pseudo is considered live + during the call, but the subreg that is set isn't. */ + CLEAR_HARD_REG_SET (this_insn_sets); + note_stores (insn, mark_set_regs, &this_insn_sets); + + /* Compute which hard regs must be saved before this call. */ + function_abi callee_abi = insn_callee_abi (insn); + hard_regs_to_save &= ~(fixed_reg_set + | this_insn_sets + | hard_regs_saved); + hard_regs_to_save &= savable_regs; + hard_regs_to_save &= callee_abi.full_reg_clobbers (); + + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_to_save, regno)) + regno += insert_save (chain, regno, + &hard_regs_to_save, save_mode); + + /* Must recompute n_regs_saved. */ + n_regs_saved = 0; + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_saved, regno)) + n_regs_saved++; + + if (cheap + && HARD_REGISTER_P (cheap) + && callee_abi.clobbers_reg_p (GET_MODE (cheap), + REGNO (cheap))) + { + rtx dest, newpat; + rtx pat = PATTERN (insn); + if (GET_CODE (pat) == PARALLEL) + pat = XVECEXP (pat, 0, 0); + dest = SET_DEST (pat); + /* For multiple return values dest is PARALLEL. + Currently we handle only single return value case. */ + if (REG_P (dest)) + { + newpat = gen_rtx_SET (cheap, copy_rtx (dest)); + chain = insert_one_insn (chain, 0, -1, newpat); + } + } + } + last = chain; + } + else if (DEBUG_INSN_P (insn) && n_regs_saved) + mark_referenced_regs (&PATTERN (insn), + replace_reg_with_saved_mem, + save_mode); + + if (chain->next == 0 || chain->next->block != chain->block) + { + int regno; + /* At the end of the basic block, we must restore any registers that + remain saved. If the last insn in the block is a JUMP_INSN, put + the restore before the insn, otherwise, put it after the insn. */ + + if (n_regs_saved + && DEBUG_INSN_P (insn) + && last + && last->block == chain->block) + { + rtx_insn *ins, *prev; + basic_block bb = BLOCK_FOR_INSN (insn); + + /* When adding hard reg restores after a DEBUG_INSN, move + all notes between last real insn and this DEBUG_INSN after + the DEBUG_INSN, otherwise we could get code + -g/-g0 differences. */ + for (ins = PREV_INSN (insn); ins != last->insn; ins = prev) + { + prev = PREV_INSN (ins); + if (NOTE_P (ins)) + { + SET_NEXT_INSN (prev) = NEXT_INSN (ins); + SET_PREV_INSN (NEXT_INSN (ins)) = prev; + SET_PREV_INSN (ins) = insn; + SET_NEXT_INSN (ins) = NEXT_INSN (insn); + SET_NEXT_INSN (insn) = ins; + if (NEXT_INSN (ins)) + SET_PREV_INSN (NEXT_INSN (ins)) = ins; + if (BB_END (bb) == insn) + BB_END (bb) = ins; + } + else + gcc_assert (DEBUG_INSN_P (ins)); + } + } + last = NULL; + + if (n_regs_saved) + for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++) + if (TEST_HARD_REG_BIT (hard_regs_saved, regno)) + regno += insert_restore (chain, JUMP_P (insn), + regno, MOVE_MAX_WORDS, save_mode); + } + } +} + +/* Here from note_stores, or directly from save_call_clobbered_regs, when + an insn stores a value in a register. + Set the proper bit or bits in this_insn_sets. All pseudos that have + been assigned hard regs have had their register number changed already, + so we can ignore pseudos. */ +static void +mark_set_regs (rtx reg, const_rtx setter ATTRIBUTE_UNUSED, void *data) +{ + int regno, endregno, i; + HARD_REG_SET *this_insn_sets = (HARD_REG_SET *) data; + + if (GET_CODE (reg) == SUBREG) + { + rtx inner = SUBREG_REG (reg); + if (!REG_P (inner) || REGNO (inner) >= FIRST_PSEUDO_REGISTER) + return; + regno = subreg_regno (reg); + endregno = regno + subreg_nregs (reg); + } + else if (REG_P (reg) + && REGNO (reg) < FIRST_PSEUDO_REGISTER) + { + regno = REGNO (reg); + endregno = END_REGNO (reg); + } + else + return; + + for (i = regno; i < endregno; i++) + SET_HARD_REG_BIT (*this_insn_sets, i); +} + +/* Here from note_stores when an insn stores a value in a register. + Set the proper bit or bits in the passed regset. All pseudos that have + been assigned hard regs have had their register number changed already, + so we can ignore pseudos. */ +static void +add_stored_regs (rtx reg, const_rtx setter, void *data) +{ + int regno, endregno, i; + machine_mode mode = GET_MODE (reg); + int offset = 0; + + if (GET_CODE (setter) == CLOBBER) + return; + + if (GET_CODE (reg) == SUBREG + && REG_P (SUBREG_REG (reg)) + && REGNO (SUBREG_REG (reg)) < FIRST_PSEUDO_REGISTER) + { + offset = subreg_regno_offset (REGNO (SUBREG_REG (reg)), + GET_MODE (SUBREG_REG (reg)), + SUBREG_BYTE (reg), + GET_MODE (reg)); + regno = REGNO (SUBREG_REG (reg)) + offset; + endregno = regno + subreg_nregs (reg); + } + else + { + if (!REG_P (reg) || REGNO (reg) >= FIRST_PSEUDO_REGISTER) + return; + + regno = REGNO (reg) + offset; + endregno = end_hard_regno (mode, regno); + } + + for (i = regno; i < endregno; i++) + SET_REGNO_REG_SET ((regset) data, i); +} + +/* Walk X and record all referenced registers in REFERENCED_REGS. */ +static void +mark_referenced_regs (rtx *loc, refmarker_fn *mark, void *arg) +{ + enum rtx_code code = GET_CODE (*loc); + const char *fmt; + int i, j; + + if (code == SET) + mark_referenced_regs (&SET_SRC (*loc), mark, arg); + if (code == SET || code == CLOBBER) + { + loc = &SET_DEST (*loc); + code = GET_CODE (*loc); + if ((code == REG && REGNO (*loc) < FIRST_PSEUDO_REGISTER) + || code == PC + || (code == SUBREG && REG_P (SUBREG_REG (*loc)) + && REGNO (SUBREG_REG (*loc)) < FIRST_PSEUDO_REGISTER + /* If we're setting only part of a multi-word register, + we shall mark it as referenced, because the words + that are not being set should be restored. */ + && !read_modify_subreg_p (*loc))) + return; + } + if (code == MEM || code == SUBREG) + { + loc = &XEXP (*loc, 0); + code = GET_CODE (*loc); + } + + if (code == REG) + { + int regno = REGNO (*loc); + int hardregno = (regno < FIRST_PSEUDO_REGISTER ? regno + : reg_renumber[regno]); + + if (hardregno >= 0) + mark (loc, GET_MODE (*loc), hardregno, arg); + else if (arg) + /* ??? Will we ever end up with an equiv expression in a debug + insn, that would have required restoring a reg, or will + reload take care of it for us? */ + return; + /* If this is a pseudo that did not get a hard register, scan its + memory location, since it might involve the use of another + register, which might be saved. */ + else if (reg_equiv_mem (regno) != 0) + mark_referenced_regs (&XEXP (reg_equiv_mem (regno), 0), mark, arg); + else if (reg_equiv_address (regno) != 0) + mark_referenced_regs (®_equiv_address (regno), mark, arg); + return; + } + + fmt = GET_RTX_FORMAT (code); + for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--) + { + if (fmt[i] == 'e') + mark_referenced_regs (&XEXP (*loc, i), mark, arg); + else if (fmt[i] == 'E') + for (j = XVECLEN (*loc, i) - 1; j >= 0; j--) + mark_referenced_regs (&XVECEXP (*loc, i, j), mark, arg); + } +} + +/* Parameter function for mark_referenced_regs() that adds registers + present in the insn and in equivalent mems and addresses to + referenced_regs. */ + +static void +mark_reg_as_referenced (rtx *loc ATTRIBUTE_UNUSED, + machine_mode mode, + int hardregno, + void *arg ATTRIBUTE_UNUSED) +{ + add_to_hard_reg_set (&referenced_regs, mode, hardregno); +} + +/* Parameter function for mark_referenced_regs() that replaces + registers referenced in a debug_insn that would have been restored, + should it be a non-debug_insn, with their save locations. */ + +static void +replace_reg_with_saved_mem (rtx *loc, + machine_mode mode, + int regno, + void *arg) +{ + unsigned int i, nregs = hard_regno_nregs (regno, mode); + rtx mem; + machine_mode *save_mode = (machine_mode *)arg; + + for (i = 0; i < nregs; i++) + if (TEST_HARD_REG_BIT (hard_regs_saved, regno + i)) + break; + + /* If none of the registers in the range would need restoring, we're + all set. */ + if (i == nregs) + return; + + while (++i < nregs) + if (!TEST_HARD_REG_BIT (hard_regs_saved, regno + i)) + break; + + if (i == nregs + && regno_save_mem[regno][nregs]) + { + mem = copy_rtx (regno_save_mem[regno][nregs]); + + if (nregs == hard_regno_nregs (regno, save_mode[regno])) + mem = adjust_address_nv (mem, save_mode[regno], 0); + + if (GET_MODE (mem) != mode) + { + /* This is gen_lowpart_if_possible(), but without validating + the newly-formed address. */ + poly_int64 offset = byte_lowpart_offset (mode, GET_MODE (mem)); + mem = adjust_address_nv (mem, mode, offset); + } + } + else + { + mem = gen_rtx_CONCATN (mode, rtvec_alloc (nregs)); + for (i = 0; i < nregs; i++) + if (TEST_HARD_REG_BIT (hard_regs_saved, regno + i)) + { + gcc_assert (regno_save_mem[regno + i][1]); + XVECEXP (mem, 0, i) = copy_rtx (regno_save_mem[regno + i][1]); + } + else + { + machine_mode smode = save_mode[regno]; + gcc_assert (smode != VOIDmode); + if (hard_regno_nregs (regno, smode) > 1) + smode = mode_for_size (exact_div (GET_MODE_BITSIZE (mode), + nregs), + GET_MODE_CLASS (mode), 0).require (); + XVECEXP (mem, 0, i) = gen_rtx_REG (smode, regno + i); + } + } + + gcc_assert (GET_MODE (mem) == mode); + *loc = mem; +} + + +/* Insert a sequence of insns to restore. Place these insns in front of + CHAIN if BEFORE_P is nonzero, behind the insn otherwise. MAXRESTORE is + the maximum number of registers which should be restored during this call. + It should never be less than 1 since we only work with entire registers. + + Note that we have verified in init_caller_save that we can do this + with a simple SET, so use it. Set INSN_CODE to what we save there + since the address might not be valid so the insn might not be recognized. + These insns will be reloaded and have register elimination done by + find_reload, so we need not worry about that here. + + Return the extra number of registers saved. */ + +static int +insert_restore (class insn_chain *chain, int before_p, int regno, + int maxrestore, machine_mode *save_mode) +{ + int i, k; + rtx pat = NULL_RTX; + int code; + unsigned int numregs = 0; + class insn_chain *new_chain; + rtx mem; + + /* A common failure mode if register status is not correct in the + RTL is for this routine to be called with a REGNO we didn't + expect to save. That will cause us to write an insn with a (nil) + SET_DEST or SET_SRC. Instead of doing so and causing a crash + later, check for this common case here instead. This will remove + one step in debugging such problems. */ + gcc_assert (regno_save_mem[regno][1]); + + /* Get the pattern to emit and update our status. + + See if we can restore `maxrestore' registers at once. Work + backwards to the single register case. */ + for (i = maxrestore; i > 0; i--) + { + int j; + int ok = 1; + + if (regno_save_mem[regno][i] == 0) + continue; + + for (j = 0; j < i; j++) + if (! TEST_HARD_REG_BIT (hard_regs_saved, regno + j)) + { + ok = 0; + break; + } + /* Must do this one restore at a time. */ + if (! ok) + continue; + + numregs = i; + break; + } + + mem = regno_save_mem [regno][numregs]; + if (save_mode [regno] != VOIDmode + && save_mode [regno] != GET_MODE (mem) + && numregs == hard_regno_nregs (regno, save_mode [regno]) + /* Check that insn to restore REGNO in save_mode[regno] is + correct. */ + && reg_save_code (regno, save_mode[regno]) >= 0) + mem = adjust_address_nv (mem, save_mode[regno], 0); + else + mem = copy_rtx (mem); + + /* Verify that the alignment of spill space is equal to or greater + than required. */ + gcc_assert (MIN (MAX_SUPPORTED_STACK_ALIGNMENT, + GET_MODE_ALIGNMENT (GET_MODE (mem))) <= MEM_ALIGN (mem)); + + pat = gen_rtx_SET (gen_rtx_REG (GET_MODE (mem), regno), mem); + code = reg_restore_code (regno, GET_MODE (mem)); + new_chain = insert_one_insn (chain, before_p, code, pat); + + /* Clear status for all registers we restored. */ + for (k = 0; k < i; k++) + { + CLEAR_HARD_REG_BIT (hard_regs_saved, regno + k); + SET_REGNO_REG_SET (&new_chain->dead_or_set, regno + k); + n_regs_saved--; + } + + /* Tell our callers how many extra registers we saved/restored. */ + return numregs - 1; +} + +/* Like insert_restore above, but save registers instead. */ + +static int +insert_save (class insn_chain *chain, int regno, + HARD_REG_SET *to_save, machine_mode *save_mode) +{ + int i; + unsigned int k; + rtx pat = NULL_RTX; + int code; + unsigned int numregs = 0; + class insn_chain *new_chain; + rtx mem; + + /* A common failure mode if register status is not correct in the + RTL is for this routine to be called with a REGNO we didn't + expect to save. That will cause us to write an insn with a (nil) + SET_DEST or SET_SRC. Instead of doing so and causing a crash + later, check for this common case here. This will remove one + step in debugging such problems. */ + gcc_assert (regno_save_mem[regno][1]); + + /* Get the pattern to emit and update our status. + + See if we can save several registers with a single instruction. + Work backwards to the single register case. */ + for (i = MOVE_MAX_WORDS; i > 0; i--) + { + int j; + int ok = 1; + if (regno_save_mem[regno][i] == 0) + continue; + + for (j = 0; j < i; j++) + if (! TEST_HARD_REG_BIT (*to_save, regno + j)) + { + ok = 0; + break; + } + /* Must do this one save at a time. */ + if (! ok) + continue; + + numregs = i; + break; + } + + mem = regno_save_mem [regno][numregs]; + if (save_mode [regno] != VOIDmode + && save_mode [regno] != GET_MODE (mem) + && numregs == hard_regno_nregs (regno, save_mode [regno]) + /* Check that insn to save REGNO in save_mode[regno] is + correct. */ + && reg_save_code (regno, save_mode[regno]) >= 0) + mem = adjust_address_nv (mem, save_mode[regno], 0); + else + mem = copy_rtx (mem); + + /* Verify that the alignment of spill space is equal to or greater + than required. */ + gcc_assert (MIN (MAX_SUPPORTED_STACK_ALIGNMENT, + GET_MODE_ALIGNMENT (GET_MODE (mem))) <= MEM_ALIGN (mem)); + + pat = gen_rtx_SET (mem, gen_rtx_REG (GET_MODE (mem), regno)); + code = reg_save_code (regno, GET_MODE (mem)); + new_chain = insert_one_insn (chain, 1, code, pat); + + /* Set hard_regs_saved and dead_or_set for all the registers we saved. */ + for (k = 0; k < numregs; k++) + { + SET_HARD_REG_BIT (hard_regs_saved, regno + k); + SET_REGNO_REG_SET (&new_chain->dead_or_set, regno + k); + n_regs_saved++; + } + + /* Tell our callers how many extra registers we saved/restored. */ + return numregs - 1; +} + +/* A note_uses callback used by insert_one_insn. Add the hard-register + equivalent of each REG to regset DATA. */ + +static void +add_used_regs (rtx *loc, void *data) +{ + subrtx_iterator::array_type array; + FOR_EACH_SUBRTX (iter, array, *loc, NONCONST) + { + const_rtx x = *iter; + if (REG_P (x)) + { + unsigned int regno = REGNO (x); + if (HARD_REGISTER_NUM_P (regno)) + bitmap_set_range ((regset) data, regno, REG_NREGS (x)); + else + gcc_checking_assert (reg_renumber[regno] < 0); + } + } +} + +/* Emit a new caller-save insn and set the code. */ +static class insn_chain * +insert_one_insn (class insn_chain *chain, int before_p, int code, rtx pat) +{ + rtx_insn *insn = chain->insn; + class insn_chain *new_chain; + + new_chain = new_insn_chain (); + if (before_p) + { + rtx link; + + new_chain->prev = chain->prev; + if (new_chain->prev != 0) + new_chain->prev->next = new_chain; + else + reload_insn_chain = new_chain; + + chain->prev = new_chain; + new_chain->next = chain; + new_chain->insn = emit_insn_before (pat, insn); + /* ??? It would be nice if we could exclude the already / still saved + registers from the live sets. */ + COPY_REG_SET (&new_chain->live_throughout, &chain->live_throughout); + note_uses (&PATTERN (chain->insn), add_used_regs, + &new_chain->live_throughout); + /* If CHAIN->INSN is a call, then the registers which contain + the arguments to the function are live in the new insn. */ + if (CALL_P (chain->insn)) + for (link = CALL_INSN_FUNCTION_USAGE (chain->insn); + link != NULL_RTX; + link = XEXP (link, 1)) + note_uses (&XEXP (link, 0), add_used_regs, + &new_chain->live_throughout); + + CLEAR_REG_SET (&new_chain->dead_or_set); + if (chain->insn == BB_HEAD (BASIC_BLOCK_FOR_FN (cfun, chain->block))) + BB_HEAD (BASIC_BLOCK_FOR_FN (cfun, chain->block)) = new_chain->insn; + } + else + { + new_chain->next = chain->next; + if (new_chain->next != 0) + new_chain->next->prev = new_chain; + chain->next = new_chain; + new_chain->prev = chain; + new_chain->insn = emit_insn_after (pat, insn); + /* ??? It would be nice if we could exclude the already / still saved + registers from the live sets, and observe REG_UNUSED notes. */ + COPY_REG_SET (&new_chain->live_throughout, &chain->live_throughout); + /* Registers that are set in CHAIN->INSN live in the new insn. + (Unless there is a REG_UNUSED note for them, but we don't + look for them here.) */ + note_stores (chain->insn, add_stored_regs, &new_chain->live_throughout); + CLEAR_REG_SET (&new_chain->dead_or_set); + if (chain->insn == BB_END (BASIC_BLOCK_FOR_FN (cfun, chain->block))) + BB_END (BASIC_BLOCK_FOR_FN (cfun, chain->block)) = new_chain->insn; + } + new_chain->block = chain->block; + new_chain->is_caller_save_insn = 1; + + INSN_CODE (new_chain->insn) = code; + return new_chain; +} +#include "gt-caller-save.h" |