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authorMartin Liska <mliska@suse.cz>2022-01-14 16:56:44 +0100
committerMartin Liska <mliska@suse.cz>2022-01-17 22:12:04 +0100
commit5c69acb32329d49e58c26fa41ae74229a52b9106 (patch)
treeddb05f9d73afb6f998457d2ac4b720e3b3b60483 /gcc/sanopt.cc
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
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Rename .c files to .cc files.
gcc/ada/ChangeLog: * adadecode.c: Moved to... * adadecode.cc: ...here. * affinity.c: Moved to... * affinity.cc: ...here. * argv-lynxos178-raven-cert.c: Moved to... * argv-lynxos178-raven-cert.cc: ...here. * argv.c: Moved to... * argv.cc: ...here. * aux-io.c: Moved to... * aux-io.cc: ...here. * cio.c: Moved to... * cio.cc: ...here. * cstreams.c: Moved to... * cstreams.cc: ...here. * env.c: Moved to... * env.cc: ...here. * exit.c: Moved to... * exit.cc: ...here. * expect.c: Moved to... * expect.cc: ...here. * final.c: Moved to... * final.cc: ...here. * gcc-interface/cuintp.c: Moved to... * gcc-interface/cuintp.cc: ...here. * gcc-interface/decl.c: Moved to... * gcc-interface/decl.cc: ...here. * gcc-interface/misc.c: Moved to... * gcc-interface/misc.cc: ...here. * gcc-interface/targtyps.c: Moved to... * gcc-interface/targtyps.cc: ...here. * gcc-interface/trans.c: Moved to... * gcc-interface/trans.cc: ...here. * gcc-interface/utils.c: Moved to... * gcc-interface/utils.cc: ...here. * gcc-interface/utils2.c: Moved to... * gcc-interface/utils2.cc: ...here. * init.c: Moved to... * init.cc: ...here. * initialize.c: Moved to... * initialize.cc: ...here. * libgnarl/thread.c: Moved to... * libgnarl/thread.cc: ...here. * link.c: Moved to... * link.cc: ...here. * locales.c: Moved to... * locales.cc: ...here. * mkdir.c: Moved to... * mkdir.cc: ...here. * raise.c: Moved to... * raise.cc: ...here. * rtfinal.c: Moved to... * rtfinal.cc: ...here. * rtinit.c: Moved to... * rtinit.cc: ...here. * seh_init.c: Moved to... * seh_init.cc: ...here. * sigtramp-armdroid.c: Moved to... * sigtramp-armdroid.cc: ...here. * sigtramp-ios.c: Moved to... * sigtramp-ios.cc: ...here. * sigtramp-qnx.c: Moved to... * sigtramp-qnx.cc: ...here. * sigtramp-vxworks.c: Moved to... * sigtramp-vxworks.cc: ...here. * socket.c: Moved to... * socket.cc: ...here. * tracebak.c: Moved to... * tracebak.cc: ...here. * version.c: Moved to... * version.cc: ...here. * vx_stack_info.c: Moved to... * vx_stack_info.cc: ...here. gcc/ChangeLog: * adjust-alignment.c: Moved to... * adjust-alignment.cc: ...here. * alias.c: Moved to... * alias.cc: ...here. * alloc-pool.c: Moved to... * alloc-pool.cc: ...here. * asan.c: Moved to... * asan.cc: ...here. * attribs.c: Moved to... * attribs.cc: ...here. * auto-inc-dec.c: Moved to... * auto-inc-dec.cc: ...here. * auto-profile.c: Moved to... * auto-profile.cc: ...here. * bb-reorder.c: Moved to... * bb-reorder.cc: ...here. * bitmap.c: Moved to... * bitmap.cc: ...here. * btfout.c: Moved to... * btfout.cc: ...here. * builtins.c: Moved to... * builtins.cc: ...here. * caller-save.c: Moved to... * caller-save.cc: ...here. * calls.c: Moved to... * calls.cc: ...here. * ccmp.c: Moved to... * ccmp.cc: ...here. * cfg.c: Moved to... * cfg.cc: ...here. * cfganal.c: Moved to... * cfganal.cc: ...here. * cfgbuild.c: Moved to... * cfgbuild.cc: ...here. * cfgcleanup.c: Moved to... * cfgcleanup.cc: ...here. * cfgexpand.c: Moved to... * cfgexpand.cc: ...here. * cfghooks.c: Moved to... * cfghooks.cc: ...here. * cfgloop.c: Moved to... * cfgloop.cc: ...here. * cfgloopanal.c: Moved to... * cfgloopanal.cc: ...here. * cfgloopmanip.c: Moved to... * cfgloopmanip.cc: ...here. * cfgrtl.c: Moved to... * cfgrtl.cc: ...here. * cgraph.c: Moved to... * cgraph.cc: ...here. * cgraphbuild.c: Moved to... * cgraphbuild.cc: ...here. * cgraphclones.c: Moved to... * cgraphclones.cc: ...here. * cgraphunit.c: Moved to... * cgraphunit.cc: ...here. * collect-utils.c: Moved to... * collect-utils.cc: ...here. * collect2-aix.c: Moved to... * collect2-aix.cc: ...here. * collect2.c: Moved to... * collect2.cc: ...here. * combine-stack-adj.c: Moved to... * combine-stack-adj.cc: ...here. * combine.c: Moved to... * combine.cc: ...here. * common/common-targhooks.c: Moved to... * common/common-targhooks.cc: ...here. * common/config/aarch64/aarch64-common.c: Moved to... * common/config/aarch64/aarch64-common.cc: ...here. * common/config/alpha/alpha-common.c: Moved to... * common/config/alpha/alpha-common.cc: ...here. * common/config/arc/arc-common.c: Moved to... * common/config/arc/arc-common.cc: ...here. * common/config/arm/arm-common.c: Moved to... * common/config/arm/arm-common.cc: ...here. * common/config/avr/avr-common.c: Moved to... * common/config/avr/avr-common.cc: ...here. * common/config/bfin/bfin-common.c: Moved to... * common/config/bfin/bfin-common.cc: ...here. * common/config/bpf/bpf-common.c: Moved to... * common/config/bpf/bpf-common.cc: ...here. * common/config/c6x/c6x-common.c: Moved to... * common/config/c6x/c6x-common.cc: ...here. * common/config/cr16/cr16-common.c: Moved to... * common/config/cr16/cr16-common.cc: ...here. * common/config/cris/cris-common.c: Moved to... * common/config/cris/cris-common.cc: ...here. * common/config/csky/csky-common.c: Moved to... * common/config/csky/csky-common.cc: ...here. * common/config/default-common.c: Moved to... * common/config/default-common.cc: ...here. * common/config/epiphany/epiphany-common.c: Moved to... * common/config/epiphany/epiphany-common.cc: ...here. * common/config/fr30/fr30-common.c: Moved to... * common/config/fr30/fr30-common.cc: ...here. * common/config/frv/frv-common.c: Moved to... * common/config/frv/frv-common.cc: ...here. * common/config/gcn/gcn-common.c: Moved to... * common/config/gcn/gcn-common.cc: ...here. * common/config/h8300/h8300-common.c: Moved to... * common/config/h8300/h8300-common.cc: ...here. * common/config/i386/i386-common.c: Moved to... * common/config/i386/i386-common.cc: ...here. * common/config/ia64/ia64-common.c: Moved to... * common/config/ia64/ia64-common.cc: ...here. * common/config/iq2000/iq2000-common.c: Moved to... * common/config/iq2000/iq2000-common.cc: ...here. * common/config/lm32/lm32-common.c: Moved to... * common/config/lm32/lm32-common.cc: ...here. * common/config/m32r/m32r-common.c: Moved to... * common/config/m32r/m32r-common.cc: ...here. * common/config/m68k/m68k-common.c: Moved to... * common/config/m68k/m68k-common.cc: ...here. * common/config/mcore/mcore-common.c: Moved to... * common/config/mcore/mcore-common.cc: ...here. * common/config/microblaze/microblaze-common.c: Moved to... * common/config/microblaze/microblaze-common.cc: ...here. * common/config/mips/mips-common.c: Moved to... * common/config/mips/mips-common.cc: ...here. * common/config/mmix/mmix-common.c: Moved to... * common/config/mmix/mmix-common.cc: ...here. * common/config/mn10300/mn10300-common.c: Moved to... * common/config/mn10300/mn10300-common.cc: ...here. * common/config/msp430/msp430-common.c: Moved to... * common/config/msp430/msp430-common.cc: ...here. * common/config/nds32/nds32-common.c: Moved to... * common/config/nds32/nds32-common.cc: ...here. * common/config/nios2/nios2-common.c: Moved to... * common/config/nios2/nios2-common.cc: ...here. * common/config/nvptx/nvptx-common.c: Moved to... * common/config/nvptx/nvptx-common.cc: ...here. * common/config/or1k/or1k-common.c: Moved to... * common/config/or1k/or1k-common.cc: ...here. * common/config/pa/pa-common.c: Moved to... * common/config/pa/pa-common.cc: ...here. * common/config/pdp11/pdp11-common.c: Moved to... * common/config/pdp11/pdp11-common.cc: ...here. * common/config/pru/pru-common.c: Moved to... * common/config/pru/pru-common.cc: ...here. * common/config/riscv/riscv-common.c: Moved to... * common/config/riscv/riscv-common.cc: ...here. * common/config/rs6000/rs6000-common.c: Moved to... * common/config/rs6000/rs6000-common.cc: ...here. * common/config/rx/rx-common.c: Moved to... * common/config/rx/rx-common.cc: ...here. * common/config/s390/s390-common.c: Moved to... * common/config/s390/s390-common.cc: ...here. * common/config/sh/sh-common.c: Moved to... * common/config/sh/sh-common.cc: ...here. * common/config/sparc/sparc-common.c: Moved to... * common/config/sparc/sparc-common.cc: ...here. * common/config/tilegx/tilegx-common.c: Moved to... * common/config/tilegx/tilegx-common.cc: ...here. * common/config/tilepro/tilepro-common.c: Moved to... * common/config/tilepro/tilepro-common.cc: ...here. * common/config/v850/v850-common.c: Moved to... * common/config/v850/v850-common.cc: ...here. * common/config/vax/vax-common.c: Moved to... * common/config/vax/vax-common.cc: ...here. * common/config/visium/visium-common.c: Moved to... * common/config/visium/visium-common.cc: ...here. * common/config/xstormy16/xstormy16-common.c: Moved to... * common/config/xstormy16/xstormy16-common.cc: ...here. * common/config/xtensa/xtensa-common.c: Moved to... * common/config/xtensa/xtensa-common.cc: ...here. * compare-elim.c: Moved to... * compare-elim.cc: ...here. * config/aarch64/aarch64-bti-insert.c: Moved to... * config/aarch64/aarch64-bti-insert.cc: ...here. * config/aarch64/aarch64-builtins.c: Moved to... * config/aarch64/aarch64-builtins.cc: ...here. * config/aarch64/aarch64-c.c: Moved to... * config/aarch64/aarch64-c.cc: ...here. * config/aarch64/aarch64-d.c: Moved to... * config/aarch64/aarch64-d.cc: ...here. * config/aarch64/aarch64.c: Moved to... * config/aarch64/aarch64.cc: ...here. * config/aarch64/cortex-a57-fma-steering.c: Moved to... * config/aarch64/cortex-a57-fma-steering.cc: ...here. * config/aarch64/driver-aarch64.c: Moved to... * config/aarch64/driver-aarch64.cc: ...here. * config/aarch64/falkor-tag-collision-avoidance.c: Moved to... * config/aarch64/falkor-tag-collision-avoidance.cc: ...here. * config/aarch64/host-aarch64-darwin.c: Moved to... * config/aarch64/host-aarch64-darwin.cc: ...here. * config/alpha/alpha.c: Moved to... * config/alpha/alpha.cc: ...here. * config/alpha/driver-alpha.c: Moved to... * config/alpha/driver-alpha.cc: ...here. * config/arc/arc-c.c: Moved to... * config/arc/arc-c.cc: ...here. * config/arc/arc.c: Moved to... * config/arc/arc.cc: ...here. * config/arc/driver-arc.c: Moved to... * config/arc/driver-arc.cc: ...here. * config/arm/aarch-common.c: Moved to... * config/arm/aarch-common.cc: ...here. * config/arm/arm-builtins.c: Moved to... * config/arm/arm-builtins.cc: ...here. * config/arm/arm-c.c: Moved to... * config/arm/arm-c.cc: ...here. * config/arm/arm-d.c: Moved to... * config/arm/arm-d.cc: ...here. * config/arm/arm.c: Moved to... * config/arm/arm.cc: ...here. * config/arm/driver-arm.c: Moved to... * config/arm/driver-arm.cc: ...here. * config/avr/avr-c.c: Moved to... * config/avr/avr-c.cc: ...here. * config/avr/avr-devices.c: Moved to... * config/avr/avr-devices.cc: ...here. * config/avr/avr-log.c: Moved to... * config/avr/avr-log.cc: ...here. * config/avr/avr.c: Moved to... * config/avr/avr.cc: ...here. * config/avr/driver-avr.c: Moved to... * config/avr/driver-avr.cc: ...here. * config/avr/gen-avr-mmcu-specs.c: Moved to... * config/avr/gen-avr-mmcu-specs.cc: ...here. * config/avr/gen-avr-mmcu-texi.c: Moved to... * config/avr/gen-avr-mmcu-texi.cc: ...here. * config/bfin/bfin.c: Moved to... * config/bfin/bfin.cc: ...here. * config/bpf/bpf.c: Moved to... * config/bpf/bpf.cc: ...here. * config/bpf/coreout.c: Moved to... * config/bpf/coreout.cc: ...here. * config/c6x/c6x.c: Moved to... * config/c6x/c6x.cc: ...here. * config/cr16/cr16.c: Moved to... * config/cr16/cr16.cc: ...here. * config/cris/cris.c: Moved to... * config/cris/cris.cc: ...here. * config/csky/csky.c: Moved to... * config/csky/csky.cc: ...here. * config/darwin-c.c: Moved to... * config/darwin-c.cc: ...here. * config/darwin-d.c: Moved to... * config/darwin-d.cc: ...here. * config/darwin-driver.c: Moved to... * config/darwin-driver.cc: ...here. * config/darwin-f.c: Moved to... * config/darwin-f.cc: ...here. * config/darwin.c: Moved to... * config/darwin.cc: ...here. * config/default-c.c: Moved to... * config/default-c.cc: ...here. * config/default-d.c: Moved to... * config/default-d.cc: ...here. * config/dragonfly-d.c: Moved to... * config/dragonfly-d.cc: ...here. * config/epiphany/epiphany.c: Moved to... * config/epiphany/epiphany.cc: ...here. * config/epiphany/mode-switch-use.c: Moved to... * config/epiphany/mode-switch-use.cc: ...here. * config/epiphany/resolve-sw-modes.c: Moved to... * config/epiphany/resolve-sw-modes.cc: ...here. * config/fr30/fr30.c: Moved to... * config/fr30/fr30.cc: ...here. * config/freebsd-d.c: Moved to... * config/freebsd-d.cc: ...here. * config/frv/frv.c: Moved to... * config/frv/frv.cc: ...here. * config/ft32/ft32.c: Moved to... * config/ft32/ft32.cc: ...here. * config/gcn/driver-gcn.c: Moved to... * config/gcn/driver-gcn.cc: ...here. * config/gcn/gcn-run.c: Moved to... * config/gcn/gcn-run.cc: ...here. * config/gcn/gcn-tree.c: Moved to... * config/gcn/gcn-tree.cc: ...here. * config/gcn/gcn.c: Moved to... * config/gcn/gcn.cc: ...here. * config/gcn/mkoffload.c: Moved to... * config/gcn/mkoffload.cc: ...here. * config/glibc-c.c: Moved to... * config/glibc-c.cc: ...here. * config/glibc-d.c: Moved to... * config/glibc-d.cc: ...here. * config/h8300/h8300.c: Moved to... * config/h8300/h8300.cc: ...here. * config/host-darwin.c: Moved to... * config/host-darwin.cc: ...here. * config/host-hpux.c: Moved to... * config/host-hpux.cc: ...here. * config/host-linux.c: Moved to... * config/host-linux.cc: ...here. * config/host-netbsd.c: Moved to... * config/host-netbsd.cc: ...here. * config/host-openbsd.c: Moved to... * config/host-openbsd.cc: ...here. * config/host-solaris.c: Moved to... * config/host-solaris.cc: ...here. * config/i386/djgpp.c: Moved to... * config/i386/djgpp.cc: ...here. * config/i386/driver-i386.c: Moved to... * config/i386/driver-i386.cc: ...here. * config/i386/driver-mingw32.c: Moved to... * config/i386/driver-mingw32.cc: ...here. * config/i386/gnu-property.c: Moved to... * config/i386/gnu-property.cc: ...here. * config/i386/host-cygwin.c: Moved to... * config/i386/host-cygwin.cc: ...here. * config/i386/host-i386-darwin.c: Moved to... * config/i386/host-i386-darwin.cc: ...here. * config/i386/host-mingw32.c: Moved to... * config/i386/host-mingw32.cc: ...here. * config/i386/i386-builtins.c: Moved to... * config/i386/i386-builtins.cc: ...here. * config/i386/i386-c.c: Moved to... * config/i386/i386-c.cc: ...here. * config/i386/i386-d.c: Moved to... * config/i386/i386-d.cc: ...here. * config/i386/i386-expand.c: Moved to... * config/i386/i386-expand.cc: ...here. * config/i386/i386-features.c: Moved to... * config/i386/i386-features.cc: ...here. * config/i386/i386-options.c: Moved to... * config/i386/i386-options.cc: ...here. * config/i386/i386.c: Moved to... * config/i386/i386.cc: ...here. * config/i386/intelmic-mkoffload.c: Moved to... * config/i386/intelmic-mkoffload.cc: ...here. * config/i386/msformat-c.c: Moved to... * config/i386/msformat-c.cc: ...here. * config/i386/winnt-cxx.c: Moved to... * config/i386/winnt-cxx.cc: ...here. * config/i386/winnt-d.c: Moved to... * config/i386/winnt-d.cc: ...here. * config/i386/winnt-stubs.c: Moved to... * config/i386/winnt-stubs.cc: ...here. * config/i386/winnt.c: Moved to... * config/i386/winnt.cc: ...here. * config/i386/x86-tune-sched-atom.c: 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config/mcore/mcore.cc: ...here. * config/microblaze/microblaze-c.c: Moved to... * config/microblaze/microblaze-c.cc: ...here. * config/microblaze/microblaze.c: Moved to... * config/microblaze/microblaze.cc: ...here. * config/mips/driver-native.c: Moved to... * config/mips/driver-native.cc: ...here. * config/mips/frame-header-opt.c: Moved to... * config/mips/frame-header-opt.cc: ...here. * config/mips/mips-d.c: Moved to... * config/mips/mips-d.cc: ...here. * config/mips/mips.c: Moved to... * config/mips/mips.cc: ...here. * config/mmix/mmix.c: Moved to... * config/mmix/mmix.cc: ...here. * config/mn10300/mn10300.c: Moved to... * config/mn10300/mn10300.cc: ...here. * config/moxie/moxie.c: Moved to... * config/moxie/moxie.cc: ...here. * config/msp430/driver-msp430.c: Moved to... * config/msp430/driver-msp430.cc: ...here. * config/msp430/msp430-c.c: Moved to... * config/msp430/msp430-c.cc: ...here. * config/msp430/msp430-devices.c: Moved to... * config/msp430/msp430-devices.cc: ...here. * config/msp430/msp430.c: Moved to... * config/msp430/msp430.cc: ...here. * config/nds32/nds32-cost.c: Moved to... * config/nds32/nds32-cost.cc: ...here. * config/nds32/nds32-fp-as-gp.c: Moved to... * config/nds32/nds32-fp-as-gp.cc: ...here. * config/nds32/nds32-intrinsic.c: Moved to... * config/nds32/nds32-intrinsic.cc: ...here. * config/nds32/nds32-isr.c: Moved to... * config/nds32/nds32-isr.cc: ...here. * config/nds32/nds32-md-auxiliary.c: Moved to... * config/nds32/nds32-md-auxiliary.cc: ...here. * config/nds32/nds32-memory-manipulation.c: Moved to... * config/nds32/nds32-memory-manipulation.cc: ...here. * config/nds32/nds32-pipelines-auxiliary.c: Moved to... * config/nds32/nds32-pipelines-auxiliary.cc: ...here. * config/nds32/nds32-predicates.c: Moved to... * config/nds32/nds32-predicates.cc: ...here. * config/nds32/nds32-relax-opt.c: Moved to... * config/nds32/nds32-relax-opt.cc: ...here. * config/nds32/nds32-utils.c: Moved to... * config/nds32/nds32-utils.cc: ...here. * config/nds32/nds32.c: Moved to... * config/nds32/nds32.cc: ...here. * config/netbsd-d.c: Moved to... * config/netbsd-d.cc: ...here. * config/netbsd.c: Moved to... * config/netbsd.cc: ...here. * config/nios2/nios2.c: Moved to... * config/nios2/nios2.cc: ...here. * config/nvptx/mkoffload.c: Moved to... * config/nvptx/mkoffload.cc: ...here. * config/nvptx/nvptx-c.c: Moved to... * config/nvptx/nvptx-c.cc: ...here. * config/nvptx/nvptx.c: Moved to... * config/nvptx/nvptx.cc: ...here. * config/openbsd-d.c: Moved to... * config/openbsd-d.cc: ...here. * config/or1k/or1k.c: Moved to... * config/or1k/or1k.cc: ...here. * config/pa/pa-d.c: Moved to... * config/pa/pa-d.cc: ...here. * config/pa/pa.c: Moved to... * config/pa/pa.cc: ...here. * config/pdp11/pdp11.c: Moved to... * config/pdp11/pdp11.cc: ...here. * config/pru/pru-passes.c: Moved to... * config/pru/pru-passes.cc: ...here. * config/pru/pru-pragma.c: Moved to... * config/pru/pru-pragma.cc: ...here. * config/pru/pru.c: Moved to... * config/pru/pru.cc: ...here. * config/riscv/riscv-builtins.c: Moved to... * config/riscv/riscv-builtins.cc: ...here. * config/riscv/riscv-c.c: Moved to... * config/riscv/riscv-c.cc: ...here. * config/riscv/riscv-d.c: Moved to... * config/riscv/riscv-d.cc: ...here. * config/riscv/riscv-shorten-memrefs.c: Moved to... * config/riscv/riscv-shorten-memrefs.cc: ...here. * config/riscv/riscv-sr.c: Moved to... * config/riscv/riscv-sr.cc: ...here. * config/riscv/riscv.c: Moved to... * config/riscv/riscv.cc: ...here. * config/rl78/rl78-c.c: Moved to... * config/rl78/rl78-c.cc: ...here. * config/rl78/rl78.c: Moved to... * config/rl78/rl78.cc: ...here. * config/rs6000/driver-rs6000.c: Moved to... * config/rs6000/driver-rs6000.cc: ...here. * config/rs6000/host-darwin.c: Moved to... * config/rs6000/host-darwin.cc: ...here. * config/rs6000/host-ppc64-darwin.c: Moved to... * config/rs6000/host-ppc64-darwin.cc: ...here. * config/rs6000/rbtree.c: Moved to... * config/rs6000/rbtree.cc: ...here. * config/rs6000/rs6000-c.c: Moved to... * config/rs6000/rs6000-c.cc: ...here. * config/rs6000/rs6000-call.c: Moved to... * config/rs6000/rs6000-call.cc: ...here. * config/rs6000/rs6000-d.c: Moved to... * config/rs6000/rs6000-d.cc: ...here. * config/rs6000/rs6000-gen-builtins.c: Moved to... * config/rs6000/rs6000-gen-builtins.cc: ...here. * config/rs6000/rs6000-linux.c: Moved to... * config/rs6000/rs6000-linux.cc: ...here. * config/rs6000/rs6000-logue.c: Moved to... * config/rs6000/rs6000-logue.cc: ...here. * config/rs6000/rs6000-p8swap.c: Moved to... * config/rs6000/rs6000-p8swap.cc: ...here. * config/rs6000/rs6000-pcrel-opt.c: Moved to... * config/rs6000/rs6000-pcrel-opt.cc: ...here. * config/rs6000/rs6000-string.c: Moved to... * config/rs6000/rs6000-string.cc: ...here. * config/rs6000/rs6000.c: Moved to... * config/rs6000/rs6000.cc: ...here. * config/rx/rx.c: Moved to... * config/rx/rx.cc: ...here. * config/s390/driver-native.c: Moved to... * config/s390/driver-native.cc: ...here. * config/s390/s390-c.c: Moved to... * config/s390/s390-c.cc: ...here. * config/s390/s390-d.c: Moved to... * config/s390/s390-d.cc: ...here. * config/s390/s390.c: Moved to... * config/s390/s390.cc: ...here. * config/sh/divtab-sh4-300.c: Moved to... * config/sh/divtab-sh4-300.cc: ...here. * config/sh/divtab-sh4.c: Moved to... * config/sh/divtab-sh4.cc: ...here. * config/sh/divtab.c: Moved to... * config/sh/divtab.cc: ...here. * config/sh/sh-c.c: Moved to... * config/sh/sh-c.cc: ...here. * config/sh/sh.c: Moved to... * config/sh/sh.cc: ...here. * config/sol2-c.c: Moved to... * config/sol2-c.cc: ...here. * config/sol2-cxx.c: Moved to... * config/sol2-cxx.cc: ...here. * config/sol2-d.c: Moved to... * config/sol2-d.cc: ...here. * config/sol2-stubs.c: Moved to... * config/sol2-stubs.cc: ...here. * config/sol2.c: Moved to... * config/sol2.cc: ...here. * config/sparc/driver-sparc.c: Moved to... * config/sparc/driver-sparc.cc: ...here. * config/sparc/sparc-c.c: Moved to... * config/sparc/sparc-c.cc: ...here. * config/sparc/sparc-d.c: Moved to... * config/sparc/sparc-d.cc: ...here. * config/sparc/sparc.c: Moved to... * config/sparc/sparc.cc: ...here. * config/stormy16/stormy16.c: Moved to... * config/stormy16/stormy16.cc: ...here. * config/tilegx/mul-tables.c: Moved to... * config/tilegx/mul-tables.cc: ...here. * config/tilegx/tilegx-c.c: Moved to... * config/tilegx/tilegx-c.cc: ...here. * config/tilegx/tilegx.c: Moved to... * config/tilegx/tilegx.cc: ...here. * config/tilepro/mul-tables.c: Moved to... * config/tilepro/mul-tables.cc: ...here. * config/tilepro/tilepro-c.c: Moved to... * config/tilepro/tilepro-c.cc: ...here. * config/tilepro/tilepro.c: Moved to... * config/tilepro/tilepro.cc: ...here. * config/v850/v850-c.c: Moved to... * config/v850/v850-c.cc: ...here. * config/v850/v850.c: Moved to... * config/v850/v850.cc: ...here. * config/vax/vax.c: Moved to... * config/vax/vax.cc: ...here. * config/visium/visium.c: Moved to... * config/visium/visium.cc: ...here. * config/vms/vms-c.c: Moved to... * config/vms/vms-c.cc: ...here. * config/vms/vms-f.c: Moved to... * config/vms/vms-f.cc: ...here. * config/vms/vms.c: Moved to... * config/vms/vms.cc: ...here. * config/vxworks-c.c: Moved to... * config/vxworks-c.cc: ...here. * config/vxworks.c: Moved to... * config/vxworks.cc: ...here. * config/winnt-c.c: Moved to... * config/winnt-c.cc: ...here. * config/xtensa/xtensa.c: Moved to... * config/xtensa/xtensa.cc: ...here. * context.c: Moved to... * context.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * coverage.c: Moved to... * coverage.cc: ...here. * cppbuiltin.c: Moved to... * cppbuiltin.cc: ...here. * cppdefault.c: Moved to... * cppdefault.cc: ...here. * cprop.c: Moved to... * cprop.cc: ...here. * cse.c: Moved to... * cse.cc: ...here. * cselib.c: Moved to... * cselib.cc: ...here. * ctfc.c: Moved to... * ctfc.cc: ...here. * ctfout.c: Moved to... * ctfout.cc: ...here. * data-streamer-in.c: Moved to... * data-streamer-in.cc: ...here. * data-streamer-out.c: Moved to... * data-streamer-out.cc: ...here. * data-streamer.c: Moved to... * data-streamer.cc: ...here. * dbgcnt.c: Moved to... * dbgcnt.cc: ...here. * dbxout.c: Moved to... * dbxout.cc: ...here. * dce.c: Moved to... * dce.cc: ...here. * ddg.c: Moved to... * ddg.cc: ...here. * debug.c: Moved to... * debug.cc: ...here. * df-core.c: Moved to... * df-core.cc: ...here. * df-problems.c: Moved to... * df-problems.cc: ...here. * df-scan.c: Moved to... * df-scan.cc: ...here. * dfp.c: Moved to... * dfp.cc: ...here. * diagnostic-color.c: Moved to... * diagnostic-color.cc: ...here. * diagnostic-show-locus.c: Moved to... * diagnostic-show-locus.cc: ...here. * diagnostic-spec.c: Moved to... * diagnostic-spec.cc: ...here. * diagnostic.c: Moved to... * diagnostic.cc: ...here. * dojump.c: Moved to... * dojump.cc: ...here. * dominance.c: Moved to... * dominance.cc: ...here. * domwalk.c: Moved to... * domwalk.cc: ...here. * double-int.c: Moved to... * double-int.cc: ...here. * dse.c: Moved to... * dse.cc: ...here. * dumpfile.c: Moved to... * dumpfile.cc: ...here. * dwarf2asm.c: Moved to... * dwarf2asm.cc: ...here. * dwarf2cfi.c: Moved to... * dwarf2cfi.cc: ...here. * dwarf2ctf.c: Moved to... * dwarf2ctf.cc: ...here. * dwarf2out.c: Moved to... * dwarf2out.cc: ...here. * early-remat.c: Moved to... * early-remat.cc: ...here. * edit-context.c: Moved to... * edit-context.cc: ...here. * emit-rtl.c: Moved to... * emit-rtl.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * et-forest.c: Moved to... * et-forest.cc: ...here. * except.c: Moved to... * except.cc: ...here. * explow.c: Moved to... * explow.cc: ...here. * expmed.c: Moved to... * expmed.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * fibonacci_heap.c: Moved to... * fibonacci_heap.cc: ...here. * file-find.c: Moved to... * file-find.cc: ...here. * file-prefix-map.c: Moved to... * file-prefix-map.cc: ...here. * final.c: Moved to... * final.cc: ...here. * fixed-value.c: Moved to... * fixed-value.cc: ...here. * fold-const-call.c: Moved to... * fold-const-call.cc: ...here. * fold-const.c: Moved to... * fold-const.cc: ...here. * fp-test.c: Moved to... * fp-test.cc: ...here. * function-tests.c: Moved to... * function-tests.cc: ...here. * function.c: Moved to... * function.cc: ...here. * fwprop.c: Moved to... * fwprop.cc: ...here. * gcc-ar.c: Moved to... * gcc-ar.cc: ...here. * gcc-main.c: Moved to... * gcc-main.cc: ...here. * gcc-rich-location.c: Moved to... * gcc-rich-location.cc: ...here. * gcc.c: Moved to... * gcc.cc: ...here. * gcov-dump.c: Moved to... * gcov-dump.cc: ...here. * gcov-io.c: Moved to... * gcov-io.cc: ...here. * gcov-tool.c: Moved to... * gcov-tool.cc: ...here. * gcov.c: Moved to... * gcov.cc: ...here. * gcse-common.c: Moved to... * gcse-common.cc: ...here. * gcse.c: Moved to... * gcse.cc: ...here. * genattr-common.c: Moved to... * genattr-common.cc: ...here. * genattr.c: Moved to... * genattr.cc: ...here. * genattrtab.c: Moved to... * genattrtab.cc: ...here. * genautomata.c: Moved to... * genautomata.cc: ...here. * gencfn-macros.c: Moved to... * gencfn-macros.cc: ...here. * gencheck.c: Moved to... * gencheck.cc: ...here. * genchecksum.c: Moved to... * genchecksum.cc: ...here. * gencodes.c: Moved to... * gencodes.cc: ...here. * genconditions.c: Moved to... * genconditions.cc: ...here. * genconfig.c: Moved to... * genconfig.cc: ...here. * genconstants.c: Moved to... * genconstants.cc: ...here. * genemit.c: Moved to... * genemit.cc: ...here. * genenums.c: Moved to... * genenums.cc: ...here. * generic-match-head.c: Moved to... * generic-match-head.cc: ...here. * genextract.c: Moved to... * genextract.cc: ...here. * genflags.c: Moved to... * genflags.cc: ...here. * gengenrtl.c: Moved to... * gengenrtl.cc: ...here. * gengtype-parse.c: Moved to... * gengtype-parse.cc: ...here. * gengtype-state.c: Moved to... * gengtype-state.cc: ...here. * gengtype.c: Moved to... * gengtype.cc: ...here. * genhooks.c: Moved to... * genhooks.cc: ...here. * genmatch.c: Moved to... * genmatch.cc: ...here. * genmddeps.c: Moved to... * genmddeps.cc: ...here. * genmddump.c: Moved to... * genmddump.cc: ...here. * genmodes.c: Moved to... * genmodes.cc: ...here. * genopinit.c: Moved to... * genopinit.cc: ...here. * genoutput.c: Moved to... * genoutput.cc: ...here. * genpeep.c: Moved to... * genpeep.cc: ...here. * genpreds.c: Moved to... * genpreds.cc: ...here. * genrecog.c: Moved to... * genrecog.cc: ...here. * gensupport.c: Moved to... * gensupport.cc: ...here. * gentarget-def.c: Moved to... * gentarget-def.cc: ...here. * genversion.c: Moved to... * genversion.cc: ...here. * ggc-common.c: Moved to... * ggc-common.cc: ...here. * ggc-none.c: Moved to... * ggc-none.cc: ...here. * ggc-page.c: Moved to... * ggc-page.cc: ...here. * ggc-tests.c: Moved to... * ggc-tests.cc: ...here. * gimple-builder.c: Moved to... * gimple-builder.cc: ...here. * gimple-expr.c: Moved to... * gimple-expr.cc: ...here. * gimple-fold.c: Moved to... * gimple-fold.cc: ...here. * gimple-iterator.c: Moved to... * gimple-iterator.cc: ...here. * gimple-laddress.c: Moved to... * gimple-laddress.cc: ...here. * gimple-loop-jam.c: Moved to... * gimple-loop-jam.cc: ...here. * gimple-low.c: Moved to... * gimple-low.cc: ...here. * gimple-match-head.c: Moved to... * gimple-match-head.cc: ...here. * gimple-pretty-print.c: Moved to... * gimple-pretty-print.cc: ...here. * gimple-ssa-backprop.c: Moved to... * gimple-ssa-backprop.cc: ...here. * gimple-ssa-evrp-analyze.c: Moved to... * gimple-ssa-evrp-analyze.cc: ...here. * gimple-ssa-evrp.c: Moved to... * gimple-ssa-evrp.cc: ...here. * gimple-ssa-isolate-paths.c: Moved to... * gimple-ssa-isolate-paths.cc: ...here. * gimple-ssa-nonnull-compare.c: Moved to... * gimple-ssa-nonnull-compare.cc: ...here. * gimple-ssa-split-paths.c: Moved to... * gimple-ssa-split-paths.cc: ...here. * gimple-ssa-sprintf.c: Moved to... * gimple-ssa-sprintf.cc: ...here. * gimple-ssa-store-merging.c: Moved to... * gimple-ssa-store-merging.cc: ...here. * gimple-ssa-strength-reduction.c: Moved to... * gimple-ssa-strength-reduction.cc: ...here. * gimple-ssa-warn-alloca.c: Moved to... * gimple-ssa-warn-alloca.cc: ...here. * gimple-ssa-warn-restrict.c: Moved to... * gimple-ssa-warn-restrict.cc: ...here. * gimple-streamer-in.c: Moved to... * gimple-streamer-in.cc: ...here. * gimple-streamer-out.c: Moved to... * gimple-streamer-out.cc: ...here. * gimple-walk.c: Moved to... * gimple-walk.cc: ...here. * gimple-warn-recursion.c: Moved to... * gimple-warn-recursion.cc: ...here. * gimple.c: Moved to... * gimple.cc: ...here. * gimplify-me.c: Moved to... * gimplify-me.cc: ...here. * gimplify.c: Moved to... * gimplify.cc: ...here. * godump.c: Moved to... * godump.cc: ...here. * graph.c: Moved to... * graph.cc: ...here. * graphds.c: Moved to... * graphds.cc: ...here. * graphite-dependences.c: Moved to... * graphite-dependences.cc: ...here. * graphite-isl-ast-to-gimple.c: Moved to... * graphite-isl-ast-to-gimple.cc: ...here. * graphite-optimize-isl.c: Moved to... * graphite-optimize-isl.cc: ...here. * graphite-poly.c: Moved to... * graphite-poly.cc: ...here. * graphite-scop-detection.c: Moved to... * graphite-scop-detection.cc: ...here. * graphite-sese-to-poly.c: Moved to... * graphite-sese-to-poly.cc: ...here. * graphite.c: Moved to... * graphite.cc: ...here. * haifa-sched.c: Moved to... * haifa-sched.cc: ...here. * hash-map-tests.c: Moved to... * hash-map-tests.cc: ...here. * hash-set-tests.c: Moved to... * hash-set-tests.cc: ...here. * hash-table.c: Moved to... * hash-table.cc: ...here. * hooks.c: Moved to... * hooks.cc: ...here. * host-default.c: Moved to... * host-default.cc: ...here. * hw-doloop.c: Moved to... * hw-doloop.cc: ...here. * hwint.c: Moved to... * hwint.cc: ...here. * ifcvt.c: Moved to... * ifcvt.cc: ...here. * inchash.c: Moved to... * inchash.cc: ...here. * incpath.c: Moved to... * incpath.cc: ...here. * init-regs.c: Moved to... * init-regs.cc: ...here. * input.c: Moved to... * input.cc: ...here. * internal-fn.c: Moved to... * internal-fn.cc: ...here. * intl.c: Moved to... * intl.cc: ...here. * ipa-comdats.c: Moved to... * ipa-comdats.cc: ...here. * ipa-cp.c: Moved to... * ipa-cp.cc: ...here. * ipa-devirt.c: Moved to... * ipa-devirt.cc: ...here. * ipa-fnsummary.c: Moved to... * ipa-fnsummary.cc: ...here. * ipa-icf-gimple.c: Moved to... * ipa-icf-gimple.cc: ...here. * ipa-icf.c: Moved to... * ipa-icf.cc: ...here. * ipa-inline-analysis.c: Moved to... * ipa-inline-analysis.cc: ...here. * ipa-inline-transform.c: Moved to... * ipa-inline-transform.cc: ...here. * ipa-inline.c: Moved to... * ipa-inline.cc: ...here. * ipa-modref-tree.c: Moved to... * ipa-modref-tree.cc: ...here. * ipa-modref.c: Moved to... * ipa-modref.cc: ...here. * ipa-param-manipulation.c: Moved to... * ipa-param-manipulation.cc: ...here. * ipa-polymorphic-call.c: Moved to... * ipa-polymorphic-call.cc: ...here. * ipa-predicate.c: Moved to... * ipa-predicate.cc: ...here. * ipa-profile.c: Moved to... * ipa-profile.cc: ...here. * ipa-prop.c: Moved to... * ipa-prop.cc: ...here. * ipa-pure-const.c: Moved to... * ipa-pure-const.cc: ...here. * ipa-ref.c: Moved to... * ipa-ref.cc: ...here. * ipa-reference.c: Moved to... * ipa-reference.cc: ...here. * ipa-split.c: Moved to... * ipa-split.cc: ...here. * ipa-sra.c: Moved to... * ipa-sra.cc: ...here. * ipa-utils.c: Moved to... * ipa-utils.cc: ...here. * ipa-visibility.c: Moved to... * ipa-visibility.cc: ...here. * ipa.c: Moved to... * ipa.cc: ...here. * ira-build.c: Moved to... * ira-build.cc: ...here. * ira-color.c: Moved to... * ira-color.cc: ...here. * ira-conflicts.c: Moved to... * ira-conflicts.cc: ...here. * ira-costs.c: Moved to... * ira-costs.cc: ...here. * ira-emit.c: Moved to... * ira-emit.cc: ...here. * ira-lives.c: Moved to... * ira-lives.cc: ...here. * ira.c: Moved to... * ira.cc: ...here. * jump.c: Moved to... * jump.cc: ...here. * langhooks.c: Moved to... * langhooks.cc: ...here. * lcm.c: Moved to... * lcm.cc: ...here. * lists.c: Moved to... * lists.cc: ...here. * loop-doloop.c: Moved to... * loop-doloop.cc: ...here. * loop-init.c: Moved to... * loop-init.cc: ...here. * loop-invariant.c: Moved to... * loop-invariant.cc: ...here. * loop-iv.c: Moved to... * loop-iv.cc: ...here. * loop-unroll.c: Moved to... * loop-unroll.cc: ...here. * lower-subreg.c: Moved to... * lower-subreg.cc: ...here. * lra-assigns.c: Moved to... * lra-assigns.cc: ...here. * lra-coalesce.c: Moved to... * lra-coalesce.cc: ...here. * lra-constraints.c: Moved to... * lra-constraints.cc: ...here. * lra-eliminations.c: Moved to... * lra-eliminations.cc: ...here. * lra-lives.c: Moved to... * lra-lives.cc: ...here. * lra-remat.c: Moved to... * lra-remat.cc: ...here. * lra-spills.c: Moved to... * lra-spills.cc: ...here. * lra.c: Moved to... * lra.cc: ...here. * lto-cgraph.c: Moved to... * lto-cgraph.cc: ...here. * lto-compress.c: Moved to... * lto-compress.cc: ...here. * lto-opts.c: Moved to... * lto-opts.cc: ...here. * lto-section-in.c: Moved to... * lto-section-in.cc: ...here. * lto-section-out.c: Moved to... * lto-section-out.cc: ...here. * lto-streamer-in.c: Moved to... * lto-streamer-in.cc: ...here. * lto-streamer-out.c: Moved to... * lto-streamer-out.cc: ...here. * lto-streamer.c: Moved to... * lto-streamer.cc: ...here. * lto-wrapper.c: Moved to... * lto-wrapper.cc: ...here. * main.c: Moved to... * main.cc: ...here. * mcf.c: Moved to... * mcf.cc: ...here. * mode-switching.c: Moved to... * mode-switching.cc: ...here. * modulo-sched.c: Moved to... * modulo-sched.cc: ...here. * multiple_target.c: Moved to... * multiple_target.cc: ...here. * omp-expand.c: Moved to... * omp-expand.cc: ...here. * omp-general.c: Moved to... * omp-general.cc: ...here. * omp-low.c: Moved to... * omp-low.cc: ...here. * omp-offload.c: Moved to... * omp-offload.cc: ...here. * omp-simd-clone.c: Moved to... * omp-simd-clone.cc: ...here. * opt-suggestions.c: Moved to... * opt-suggestions.cc: ...here. * optabs-libfuncs.c: Moved to... * optabs-libfuncs.cc: ...here. * optabs-query.c: Moved to... * optabs-query.cc: ...here. * optabs-tree.c: Moved to... * optabs-tree.cc: ...here. * optabs.c: Moved to... * optabs.cc: ...here. * opts-common.c: Moved to... * opts-common.cc: ...here. * opts-global.c: Moved to... * opts-global.cc: ...here. * opts.c: Moved to... * opts.cc: ...here. * passes.c: Moved to... * passes.cc: ...here. * plugin.c: Moved to... * plugin.cc: ...here. * postreload-gcse.c: Moved to... * postreload-gcse.cc: ...here. * postreload.c: Moved to... * postreload.cc: ...here. * predict.c: Moved to... * predict.cc: ...here. * prefix.c: Moved to... * prefix.cc: ...here. * pretty-print.c: Moved to... * pretty-print.cc: ...here. * print-rtl-function.c: Moved to... * print-rtl-function.cc: ...here. * print-rtl.c: Moved to... * print-rtl.cc: ...here. * print-tree.c: Moved to... * print-tree.cc: ...here. * profile-count.c: Moved to... * profile-count.cc: ...here. * profile.c: Moved to... * profile.cc: ...here. * read-md.c: Moved to... * read-md.cc: ...here. * read-rtl-function.c: Moved to... * read-rtl-function.cc: ...here. * read-rtl.c: Moved to... * read-rtl.cc: ...here. * real.c: Moved to... * real.cc: ...here. * realmpfr.c: Moved to... * realmpfr.cc: ...here. * recog.c: Moved to... * recog.cc: ...here. * ree.c: Moved to... * ree.cc: ...here. * reg-stack.c: Moved to... * reg-stack.cc: ...here. * regcprop.c: Moved to... * regcprop.cc: ...here. * reginfo.c: Moved to... * reginfo.cc: ...here. * regrename.c: Moved to... * regrename.cc: ...here. * regstat.c: Moved to... * regstat.cc: ...here. * reload.c: Moved to... * reload.cc: ...here. * reload1.c: Moved to... * reload1.cc: ...here. * reorg.c: Moved to... * reorg.cc: ...here. * resource.c: Moved to... * resource.cc: ...here. * rtl-error.c: Moved to... * rtl-error.cc: ...here. * rtl-tests.c: Moved to... * rtl-tests.cc: ...here. * rtl.c: Moved to... * rtl.cc: ...here. * rtlanal.c: Moved to... * rtlanal.cc: ...here. * rtlhash.c: Moved to... * rtlhash.cc: ...here. * rtlhooks.c: Moved to... * rtlhooks.cc: ...here. * rtx-vector-builder.c: Moved to... * rtx-vector-builder.cc: ...here. * run-rtl-passes.c: Moved to... * run-rtl-passes.cc: ...here. * sancov.c: Moved to... * sancov.cc: ...here. * sanopt.c: Moved to... * sanopt.cc: ...here. * sbitmap.c: Moved to... * sbitmap.cc: ...here. * sched-deps.c: Moved to... * sched-deps.cc: ...here. * sched-ebb.c: Moved to... * sched-ebb.cc: ...here. * sched-rgn.c: Moved to... * sched-rgn.cc: ...here. * sel-sched-dump.c: Moved to... * sel-sched-dump.cc: ...here. * sel-sched-ir.c: Moved to... * sel-sched-ir.cc: ...here. * sel-sched.c: Moved to... * sel-sched.cc: ...here. * selftest-diagnostic.c: Moved to... * selftest-diagnostic.cc: ...here. * selftest-rtl.c: Moved to... * selftest-rtl.cc: ...here. * selftest-run-tests.c: Moved to... * selftest-run-tests.cc: ...here. * selftest.c: Moved to... * selftest.cc: ...here. * sese.c: Moved to... * sese.cc: ...here. * shrink-wrap.c: Moved to... * shrink-wrap.cc: ...here. * simplify-rtx.c: Moved to... * simplify-rtx.cc: ...here. * sparseset.c: Moved to... * sparseset.cc: ...here. * spellcheck-tree.c: Moved to... * spellcheck-tree.cc: ...here. * spellcheck.c: Moved to... * spellcheck.cc: ...here. * sreal.c: Moved to... * sreal.cc: ...here. * stack-ptr-mod.c: Moved to... * stack-ptr-mod.cc: ...here. * statistics.c: Moved to... * statistics.cc: ...here. * stmt.c: Moved to... * stmt.cc: ...here. * stor-layout.c: Moved to... * stor-layout.cc: ...here. * store-motion.c: Moved to... * store-motion.cc: ...here. * streamer-hooks.c: Moved to... * streamer-hooks.cc: ...here. * stringpool.c: Moved to... * stringpool.cc: ...here. * substring-locations.c: Moved to... * substring-locations.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * target-globals.c: Moved to... * target-globals.cc: ...here. * targhooks.c: Moved to... * targhooks.cc: ...here. * timevar.c: Moved to... * timevar.cc: ...here. * toplev.c: Moved to... * toplev.cc: ...here. * tracer.c: Moved to... * tracer.cc: ...here. * trans-mem.c: Moved to... * trans-mem.cc: ...here. * tree-affine.c: Moved to... * tree-affine.cc: ...here. * tree-call-cdce.c: Moved to... * tree-call-cdce.cc: ...here. * tree-cfg.c: Moved to... * tree-cfg.cc: ...here. * tree-cfgcleanup.c: Moved to... * tree-cfgcleanup.cc: ...here. * tree-chrec.c: Moved to... * tree-chrec.cc: ...here. * tree-complex.c: Moved to... * tree-complex.cc: ...here. * tree-data-ref.c: Moved to... * tree-data-ref.cc: ...here. * tree-dfa.c: Moved to... * tree-dfa.cc: ...here. * tree-diagnostic.c: Moved to... * tree-diagnostic.cc: ...here. * tree-dump.c: Moved to... * tree-dump.cc: ...here. * tree-eh.c: Moved to... * tree-eh.cc: ...here. * tree-emutls.c: Moved to... * tree-emutls.cc: ...here. * tree-if-conv.c: Moved to... * tree-if-conv.cc: ...here. * tree-inline.c: Moved to... * tree-inline.cc: ...here. * tree-into-ssa.c: Moved to... * tree-into-ssa.cc: ...here. * tree-iterator.c: Moved to... * tree-iterator.cc: ...here. * tree-loop-distribution.c: Moved to... * tree-loop-distribution.cc: ...here. * tree-nested.c: Moved to... * tree-nested.cc: ...here. * tree-nrv.c: Moved to... * tree-nrv.cc: ...here. * tree-object-size.c: Moved to... * tree-object-size.cc: ...here. * tree-outof-ssa.c: Moved to... * tree-outof-ssa.cc: ...here. * tree-parloops.c: Moved to... * tree-parloops.cc: ...here. * tree-phinodes.c: Moved to... * tree-phinodes.cc: ...here. * tree-predcom.c: Moved to... * tree-predcom.cc: ...here. * tree-pretty-print.c: Moved to... * tree-pretty-print.cc: ...here. * tree-profile.c: Moved to... * tree-profile.cc: ...here. * tree-scalar-evolution.c: Moved to... * tree-scalar-evolution.cc: ...here. * tree-sra.c: Moved to... * tree-sra.cc: ...here. * tree-ssa-address.c: Moved to... * tree-ssa-address.cc: ...here. * tree-ssa-alias.c: Moved to... * tree-ssa-alias.cc: ...here. * tree-ssa-ccp.c: Moved to... * tree-ssa-ccp.cc: ...here. * tree-ssa-coalesce.c: Moved to... * tree-ssa-coalesce.cc: ...here. * tree-ssa-copy.c: Moved to... * tree-ssa-copy.cc: ...here. * tree-ssa-dce.c: Moved to... * tree-ssa-dce.cc: ...here. * tree-ssa-dom.c: Moved to... * tree-ssa-dom.cc: ...here. * tree-ssa-dse.c: Moved to... * tree-ssa-dse.cc: ...here. * tree-ssa-forwprop.c: Moved to... * tree-ssa-forwprop.cc: ...here. * tree-ssa-ifcombine.c: Moved to... * tree-ssa-ifcombine.cc: ...here. * tree-ssa-live.c: Moved to... * tree-ssa-live.cc: ...here. * tree-ssa-loop-ch.c: Moved to... * tree-ssa-loop-ch.cc: ...here. * tree-ssa-loop-im.c: Moved to... * tree-ssa-loop-im.cc: ...here. * tree-ssa-loop-ivcanon.c: Moved to... * tree-ssa-loop-ivcanon.cc: ...here. * tree-ssa-loop-ivopts.c: Moved to... * tree-ssa-loop-ivopts.cc: ...here. * tree-ssa-loop-manip.c: Moved to... * tree-ssa-loop-manip.cc: ...here. * tree-ssa-loop-niter.c: Moved to... * tree-ssa-loop-niter.cc: ...here. * tree-ssa-loop-prefetch.c: Moved to... * tree-ssa-loop-prefetch.cc: ...here. * tree-ssa-loop-split.c: Moved to... * tree-ssa-loop-split.cc: ...here. * tree-ssa-loop-unswitch.c: Moved to... * tree-ssa-loop-unswitch.cc: ...here. * tree-ssa-loop.c: Moved to... * tree-ssa-loop.cc: ...here. * tree-ssa-math-opts.c: Moved to... * tree-ssa-math-opts.cc: ...here. * tree-ssa-operands.c: Moved to... * tree-ssa-operands.cc: ...here. * tree-ssa-phiopt.c: Moved to... * tree-ssa-phiopt.cc: ...here. * tree-ssa-phiprop.c: Moved to... * tree-ssa-phiprop.cc: ...here. * tree-ssa-pre.c: Moved to... * tree-ssa-pre.cc: ...here. * tree-ssa-propagate.c: Moved to... * tree-ssa-propagate.cc: ...here. * tree-ssa-reassoc.c: Moved to... * tree-ssa-reassoc.cc: ...here. * tree-ssa-sccvn.c: Moved to... * tree-ssa-sccvn.cc: ...here. * tree-ssa-scopedtables.c: Moved to... * tree-ssa-scopedtables.cc: ...here. * tree-ssa-sink.c: Moved to... * tree-ssa-sink.cc: ...here. * tree-ssa-strlen.c: Moved to... * tree-ssa-strlen.cc: ...here. * tree-ssa-structalias.c: Moved to... * tree-ssa-structalias.cc: ...here. * tree-ssa-tail-merge.c: Moved to... * tree-ssa-tail-merge.cc: ...here. * tree-ssa-ter.c: Moved to... * tree-ssa-ter.cc: ...here. * tree-ssa-threadbackward.c: Moved to... * tree-ssa-threadbackward.cc: ...here. * tree-ssa-threadedge.c: Moved to... * tree-ssa-threadedge.cc: ...here. * tree-ssa-threadupdate.c: Moved to... * tree-ssa-threadupdate.cc: ...here. * tree-ssa-uncprop.c: Moved to... * tree-ssa-uncprop.cc: ...here. * tree-ssa-uninit.c: Moved to... * tree-ssa-uninit.cc: ...here. * tree-ssa.c: Moved to... * tree-ssa.cc: ...here. * tree-ssanames.c: Moved to... * tree-ssanames.cc: ...here. * tree-stdarg.c: Moved to... * tree-stdarg.cc: ...here. * tree-streamer-in.c: Moved to... * tree-streamer-in.cc: ...here. * tree-streamer-out.c: Moved to... * tree-streamer-out.cc: ...here. * tree-streamer.c: Moved to... * tree-streamer.cc: ...here. * tree-switch-conversion.c: Moved to... * tree-switch-conversion.cc: ...here. * tree-tailcall.c: Moved to... * tree-tailcall.cc: ...here. * tree-vect-data-refs.c: Moved to... * tree-vect-data-refs.cc: ...here. * tree-vect-generic.c: Moved to... * tree-vect-generic.cc: ...here. * tree-vect-loop-manip.c: Moved to... * tree-vect-loop-manip.cc: ...here. * tree-vect-loop.c: Moved to... * tree-vect-loop.cc: ...here. * tree-vect-patterns.c: Moved to... * tree-vect-patterns.cc: ...here. * tree-vect-slp-patterns.c: Moved to... * tree-vect-slp-patterns.cc: ...here. * tree-vect-slp.c: Moved to... * tree-vect-slp.cc: ...here. * tree-vect-stmts.c: Moved to... * tree-vect-stmts.cc: ...here. * tree-vector-builder.c: Moved to... * tree-vector-builder.cc: ...here. * tree-vectorizer.c: Moved to... * tree-vectorizer.cc: ...here. * tree-vrp.c: Moved to... * tree-vrp.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * tsan.c: Moved to... * tsan.cc: ...here. * typed-splay-tree.c: Moved to... * typed-splay-tree.cc: ...here. * ubsan.c: Moved to... * ubsan.cc: ...here. * valtrack.c: Moved to... * valtrack.cc: ...here. * value-prof.c: Moved to... * value-prof.cc: ...here. * var-tracking.c: Moved to... * var-tracking.cc: ...here. * varasm.c: Moved to... * varasm.cc: ...here. * varpool.c: Moved to... * varpool.cc: ...here. * vec-perm-indices.c: Moved to... * vec-perm-indices.cc: ...here. * vec.c: Moved to... * vec.cc: ...here. * vmsdbgout.c: Moved to... * vmsdbgout.cc: ...here. * vr-values.c: Moved to... * vr-values.cc: ...here. * vtable-verify.c: Moved to... * vtable-verify.cc: ...here. * web.c: Moved to... * web.cc: ...here. * xcoffout.c: Moved to... * xcoffout.cc: ...here. gcc/c-family/ChangeLog: * c-ada-spec.c: Moved to... * c-ada-spec.cc: ...here. * c-attribs.c: Moved to... * c-attribs.cc: ...here. * c-common.c: Moved to... * c-common.cc: ...here. * c-cppbuiltin.c: Moved to... * c-cppbuiltin.cc: ...here. * c-dump.c: Moved to... * c-dump.cc: ...here. * c-format.c: Moved to... * c-format.cc: ...here. * c-gimplify.c: Moved to... * c-gimplify.cc: ...here. * c-indentation.c: Moved to... * c-indentation.cc: ...here. * c-lex.c: Moved to... * c-lex.cc: ...here. * c-omp.c: Moved to... * c-omp.cc: ...here. * c-opts.c: Moved to... * c-opts.cc: ...here. * c-pch.c: Moved to... * c-pch.cc: ...here. * c-ppoutput.c: Moved to... * c-ppoutput.cc: ...here. * c-pragma.c: Moved to... * c-pragma.cc: ...here. * c-pretty-print.c: Moved to... * c-pretty-print.cc: ...here. * c-semantics.c: Moved to... * c-semantics.cc: ...here. * c-ubsan.c: Moved to... * c-ubsan.cc: ...here. * c-warn.c: Moved to... * c-warn.cc: ...here. * cppspec.c: Moved to... * cppspec.cc: ...here. * stub-objc.c: Moved to... * stub-objc.cc: ...here. gcc/c/ChangeLog: * c-aux-info.c: Moved to... * c-aux-info.cc: ...here. * c-convert.c: Moved to... * c-convert.cc: ...here. * c-decl.c: Moved to... * c-decl.cc: ...here. * c-errors.c: Moved to... * c-errors.cc: ...here. * c-fold.c: Moved to... * c-fold.cc: ...here. * c-lang.c: Moved to... * c-lang.cc: ...here. * c-objc-common.c: Moved to... * c-objc-common.cc: ...here. * c-parser.c: Moved to... * c-parser.cc: ...here. * c-typeck.c: Moved to... * c-typeck.cc: ...here. * gccspec.c: Moved to... * gccspec.cc: ...here. * gimple-parser.c: Moved to... * gimple-parser.cc: ...here. gcc/cp/ChangeLog: * call.c: Moved to... * call.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constexpr.c: Moved to... * constexpr.cc: ...here. * cp-gimplify.c: Moved to... * cp-gimplify.cc: ...here. * cp-lang.c: Moved to... * cp-lang.cc: ...here. * cp-objcp-common.c: Moved to... * cp-objcp-common.cc: ...here. * cp-ubsan.c: Moved to... * cp-ubsan.cc: ...here. * cvt.c: Moved to... * cvt.cc: ...here. * cxx-pretty-print.c: Moved to... * cxx-pretty-print.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * decl2.c: Moved to... * decl2.cc: ...here. * dump.c: Moved to... * dump.cc: ...here. * error.c: Moved to... * error.cc: ...here. * except.c: Moved to... * except.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * friend.c: Moved to... * friend.cc: ...here. * g++spec.c: Moved to... * g++spec.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lambda.c: Moved to... * lambda.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * mangle.c: Moved to... * mangle.cc: ...here. * method.c: Moved to... * method.cc: ...here. * name-lookup.c: Moved to... * name-lookup.cc: ...here. * optimize.c: Moved to... * optimize.cc: ...here. * parser.c: Moved to... * parser.cc: ...here. * pt.c: Moved to... * pt.cc: ...here. * ptree.c: Moved to... * ptree.cc: ...here. * rtti.c: Moved to... * rtti.cc: ...here. * search.c: Moved to... * search.cc: ...here. * semantics.c: Moved to... * semantics.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * typeck.c: Moved to... * typeck.cc: ...here. * typeck2.c: Moved to... * typeck2.cc: ...here. * vtable-class-hierarchy.c: Moved to... * vtable-class-hierarchy.cc: ...here. gcc/fortran/ChangeLog: * arith.c: Moved to... * arith.cc: ...here. * array.c: Moved to... * array.cc: ...here. * bbt.c: Moved to... * bbt.cc: ...here. * check.c: Moved to... * check.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constructor.c: Moved to... * constructor.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * cpp.c: Moved to... * cpp.cc: ...here. * data.c: Moved to... * data.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * dependency.c: Moved to... * dependency.cc: ...here. * dump-parse-tree.c: Moved to... * dump-parse-tree.cc: ...here. * error.c: Moved to... * error.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * f95-lang.c: Moved to... * f95-lang.cc: ...here. * frontend-passes.c: Moved to... * frontend-passes.cc: ...here. * gfortranspec.c: Moved to... * gfortranspec.cc: ...here. * interface.c: Moved to... * interface.cc: ...here. * intrinsic.c: Moved to... * intrinsic.cc: ...here. * io.c: Moved to... * io.cc: ...here. * iresolve.c: Moved to... * iresolve.cc: ...here. * match.c: Moved to... * match.cc: ...here. * matchexp.c: Moved to... * matchexp.cc: ...here. * misc.c: Moved to... * misc.cc: ...here. * module.c: Moved to... * module.cc: ...here. * openmp.c: Moved to... * openmp.cc: ...here. * options.c: Moved to... * options.cc: ...here. * parse.c: Moved to... * parse.cc: ...here. * primary.c: Moved to... * primary.cc: ...here. * resolve.c: Moved to... * resolve.cc: ...here. * scanner.c: Moved to... * scanner.cc: ...here. * simplify.c: Moved to... * simplify.cc: ...here. * st.c: Moved to... * st.cc: ...here. * symbol.c: Moved to... * symbol.cc: ...here. * target-memory.c: Moved to... * target-memory.cc: ...here. * trans-array.c: Moved to... * trans-array.cc: ...here. * trans-common.c: Moved to... * trans-common.cc: ...here. * trans-const.c: Moved to... * trans-const.cc: ...here. * trans-decl.c: Moved to... * trans-decl.cc: ...here. * trans-expr.c: Moved to... * trans-expr.cc: ...here. * trans-intrinsic.c: Moved to... * trans-intrinsic.cc: ...here. * trans-io.c: Moved to... * trans-io.cc: ...here. * trans-openmp.c: Moved to... * trans-openmp.cc: ...here. * trans-stmt.c: Moved to... * trans-stmt.cc: ...here. * trans-types.c: Moved to... * trans-types.cc: ...here. * trans.c: Moved to... * trans.cc: ...here. gcc/go/ChangeLog: * go-backend.c: Moved to... * go-backend.cc: ...here. * go-lang.c: Moved to... * go-lang.cc: ...here. * gospec.c: Moved to... * gospec.cc: ...here. gcc/jit/ChangeLog: * dummy-frontend.c: Moved to... * dummy-frontend.cc: ...here. * jit-builtins.c: Moved to... * jit-builtins.cc: ...here. * jit-logging.c: Moved to... * jit-logging.cc: ...here. * jit-playback.c: Moved to... * jit-playback.cc: ...here. * jit-recording.c: Moved to... * jit-recording.cc: ...here. * jit-result.c: Moved to... * jit-result.cc: ...here. * jit-spec.c: Moved to... * jit-spec.cc: ...here. * jit-tempdir.c: Moved to... * jit-tempdir.cc: ...here. * jit-w32.c: Moved to... * jit-w32.cc: ...here. * libgccjit.c: Moved to... * libgccjit.cc: ...here. gcc/lto/ChangeLog: * common.c: Moved to... * common.cc: ...here. * lto-common.c: Moved to... * 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Diffstat (limited to 'gcc/sanopt.cc')
-rw-r--r--gcc/sanopt.cc1403
1 files changed, 1403 insertions, 0 deletions
diff --git a/gcc/sanopt.cc b/gcc/sanopt.cc
new file mode 100644
index 0000000..125e0c9
--- /dev/null
+++ b/gcc/sanopt.cc
@@ -0,0 +1,1403 @@
+/* Optimize and expand sanitizer functions.
+ Copyright (C) 2014-2022 Free Software Foundation, Inc.
+ Contributed by Marek Polacek <polacek@redhat.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "backend.h"
+#include "tree.h"
+#include "gimple.h"
+#include "ssa.h"
+#include "tree-pass.h"
+#include "tree-ssa-operands.h"
+#include "gimple-pretty-print.h"
+#include "fold-const.h"
+#include "gimple-iterator.h"
+#include "stringpool.h"
+#include "attribs.h"
+#include "asan.h"
+#include "ubsan.h"
+#include "tree-hash-traits.h"
+#include "gimple-ssa.h"
+#include "tree-phinodes.h"
+#include "ssa-iterators.h"
+#include "gimplify.h"
+#include "gimple-iterator.h"
+#include "gimple-walk.h"
+#include "cfghooks.h"
+#include "tree-dfa.h"
+#include "tree-ssa.h"
+#include "varasm.h"
+
+/* This is used to carry information about basic blocks. It is
+ attached to the AUX field of the standard CFG block. */
+
+struct sanopt_info
+{
+ /* True if this BB might call (directly or indirectly) free/munmap
+ or similar operation. */
+ bool has_freeing_call_p;
+
+ /* True if HAS_FREEING_CALL_P flag has been computed. */
+ bool has_freeing_call_computed_p;
+
+ /* True if there is a block with HAS_FREEING_CALL_P flag set
+ on any path between an immediate dominator of BB, denoted
+ imm(BB), and BB. */
+ bool imm_dom_path_with_freeing_call_p;
+
+ /* True if IMM_DOM_PATH_WITH_FREEING_CALL_P has been computed. */
+ bool imm_dom_path_with_freeing_call_computed_p;
+
+ /* Number of possibly freeing calls encountered in this bb
+ (so far). */
+ uint64_t freeing_call_events;
+
+ /* True if BB is currently being visited during computation
+ of IMM_DOM_PATH_WITH_FREEING_CALL_P flag. */
+ bool being_visited_p;
+
+ /* True if this BB has been visited in the dominator walk. */
+ bool visited_p;
+};
+
+/* If T has a single definition of form T = T2, return T2. */
+
+static tree
+maybe_get_single_definition (tree t)
+{
+ if (TREE_CODE (t) == SSA_NAME)
+ {
+ gimple *g = SSA_NAME_DEF_STMT (t);
+ if (gimple_assign_single_p (g))
+ return gimple_assign_rhs1 (g);
+ }
+ return NULL_TREE;
+}
+
+/* Tree triplet for vptr_check_map. */
+struct sanopt_tree_triplet
+{
+ tree t1, t2, t3;
+};
+
+/* Traits class for tree triplet hash maps below. */
+
+struct sanopt_tree_triplet_hash : typed_noop_remove <sanopt_tree_triplet>
+{
+ typedef sanopt_tree_triplet value_type;
+ typedef sanopt_tree_triplet compare_type;
+
+ static hashval_t
+ hash (const sanopt_tree_triplet &ref)
+ {
+ inchash::hash hstate (0);
+ inchash::add_expr (ref.t1, hstate);
+ inchash::add_expr (ref.t2, hstate);
+ inchash::add_expr (ref.t3, hstate);
+ return hstate.end ();
+ }
+
+ static bool
+ equal (const sanopt_tree_triplet &ref1, const sanopt_tree_triplet &ref2)
+ {
+ return operand_equal_p (ref1.t1, ref2.t1, 0)
+ && operand_equal_p (ref1.t2, ref2.t2, 0)
+ && operand_equal_p (ref1.t3, ref2.t3, 0);
+ }
+
+ static void
+ mark_deleted (sanopt_tree_triplet &ref)
+ {
+ ref.t1 = reinterpret_cast<tree> (1);
+ }
+
+ static const bool empty_zero_p = true;
+
+ static void
+ mark_empty (sanopt_tree_triplet &ref)
+ {
+ ref.t1 = NULL;
+ }
+
+ static bool
+ is_deleted (const sanopt_tree_triplet &ref)
+ {
+ return ref.t1 == reinterpret_cast<tree> (1);
+ }
+
+ static bool
+ is_empty (const sanopt_tree_triplet &ref)
+ {
+ return ref.t1 == NULL;
+ }
+};
+
+/* Tree couple for ptr_check_map. */
+struct sanopt_tree_couple
+{
+ tree ptr;
+ bool pos_p;
+};
+
+/* Traits class for tree triplet hash maps below. */
+
+struct sanopt_tree_couple_hash : typed_noop_remove <sanopt_tree_couple>
+{
+ typedef sanopt_tree_couple value_type;
+ typedef sanopt_tree_couple compare_type;
+
+ static hashval_t
+ hash (const sanopt_tree_couple &ref)
+ {
+ inchash::hash hstate (0);
+ inchash::add_expr (ref.ptr, hstate);
+ hstate.add_int (ref.pos_p);
+ return hstate.end ();
+ }
+
+ static bool
+ equal (const sanopt_tree_couple &ref1, const sanopt_tree_couple &ref2)
+ {
+ return operand_equal_p (ref1.ptr, ref2.ptr, 0)
+ && ref1.pos_p == ref2.pos_p;
+ }
+
+ static void
+ mark_deleted (sanopt_tree_couple &ref)
+ {
+ ref.ptr = reinterpret_cast<tree> (1);
+ }
+
+ static const bool empty_zero_p = true;
+
+ static void
+ mark_empty (sanopt_tree_couple &ref)
+ {
+ ref.ptr = NULL;
+ }
+
+ static bool
+ is_deleted (const sanopt_tree_couple &ref)
+ {
+ return ref.ptr == reinterpret_cast<tree> (1);
+ }
+
+ static bool
+ is_empty (const sanopt_tree_couple &ref)
+ {
+ return ref.ptr == NULL;
+ }
+};
+
+/* This is used to carry various hash maps and variables used
+ in sanopt_optimize_walker. */
+
+class sanopt_ctx
+{
+public:
+ /* This map maps a pointer (the first argument of UBSAN_NULL) to
+ a vector of UBSAN_NULL call statements that check this pointer. */
+ hash_map<tree, auto_vec<gimple *> > null_check_map;
+
+ /* This map maps a pointer (the second argument of ASAN_CHECK) to
+ a vector of ASAN_CHECK call statements that check the access. */
+ hash_map<tree_operand_hash, auto_vec<gimple *> > asan_check_map;
+
+ /* This map maps a tree triplet (the first, second and fourth argument
+ of UBSAN_VPTR) to a vector of UBSAN_VPTR call statements that check
+ that virtual table pointer. */
+ hash_map<sanopt_tree_triplet_hash, auto_vec<gimple *> > vptr_check_map;
+
+ /* This map maps a couple (tree and boolean) to a vector of UBSAN_PTR
+ call statements that check that pointer overflow. */
+ hash_map<sanopt_tree_couple_hash, auto_vec<gimple *> > ptr_check_map;
+
+ /* Number of IFN_ASAN_CHECK statements. */
+ int asan_num_accesses;
+
+ /* True when the current functions constains an ASAN_MARK. */
+ bool contains_asan_mark;
+};
+
+/* Return true if there might be any call to free/munmap operation
+ on any path in between DOM (which should be imm(BB)) and BB. */
+
+static bool
+imm_dom_path_with_freeing_call (basic_block bb, basic_block dom)
+{
+ sanopt_info *info = (sanopt_info *) bb->aux;
+ edge e;
+ edge_iterator ei;
+
+ if (info->imm_dom_path_with_freeing_call_computed_p)
+ return info->imm_dom_path_with_freeing_call_p;
+
+ info->being_visited_p = true;
+
+ FOR_EACH_EDGE (e, ei, bb->preds)
+ {
+ sanopt_info *pred_info = (sanopt_info *) e->src->aux;
+
+ if (e->src == dom)
+ continue;
+
+ if ((pred_info->imm_dom_path_with_freeing_call_computed_p
+ && pred_info->imm_dom_path_with_freeing_call_p)
+ || (pred_info->has_freeing_call_computed_p
+ && pred_info->has_freeing_call_p))
+ {
+ info->imm_dom_path_with_freeing_call_computed_p = true;
+ info->imm_dom_path_with_freeing_call_p = true;
+ info->being_visited_p = false;
+ return true;
+ }
+ }
+
+ FOR_EACH_EDGE (e, ei, bb->preds)
+ {
+ sanopt_info *pred_info = (sanopt_info *) e->src->aux;
+
+ if (e->src == dom)
+ continue;
+
+ if (pred_info->has_freeing_call_computed_p)
+ continue;
+
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start_bb (e->src); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ gasm *asm_stmt;
+
+ if ((is_gimple_call (stmt) && !nonfreeing_call_p (stmt))
+ || ((asm_stmt = dyn_cast <gasm *> (stmt))
+ && (gimple_asm_clobbers_memory_p (asm_stmt)
+ || gimple_asm_volatile_p (asm_stmt))))
+ {
+ pred_info->has_freeing_call_p = true;
+ break;
+ }
+ }
+
+ pred_info->has_freeing_call_computed_p = true;
+ if (pred_info->has_freeing_call_p)
+ {
+ info->imm_dom_path_with_freeing_call_computed_p = true;
+ info->imm_dom_path_with_freeing_call_p = true;
+ info->being_visited_p = false;
+ return true;
+ }
+ }
+
+ FOR_EACH_EDGE (e, ei, bb->preds)
+ {
+ if (e->src == dom)
+ continue;
+
+ basic_block src;
+ for (src = e->src; src != dom; )
+ {
+ sanopt_info *pred_info = (sanopt_info *) src->aux;
+ if (pred_info->being_visited_p)
+ break;
+ basic_block imm = get_immediate_dominator (CDI_DOMINATORS, src);
+ if (imm_dom_path_with_freeing_call (src, imm))
+ {
+ info->imm_dom_path_with_freeing_call_computed_p = true;
+ info->imm_dom_path_with_freeing_call_p = true;
+ info->being_visited_p = false;
+ return true;
+ }
+ src = imm;
+ }
+ }
+
+ info->imm_dom_path_with_freeing_call_computed_p = true;
+ info->imm_dom_path_with_freeing_call_p = false;
+ info->being_visited_p = false;
+ return false;
+}
+
+/* Get the first dominating check from the list of stored checks.
+ Non-dominating checks are silently dropped. */
+
+static gimple *
+maybe_get_dominating_check (auto_vec<gimple *> &v)
+{
+ for (; !v.is_empty (); v.pop ())
+ {
+ gimple *g = v.last ();
+ sanopt_info *si = (sanopt_info *) gimple_bb (g)->aux;
+ if (!si->visited_p)
+ /* At this point we shouldn't have any statements
+ that aren't dominating the current BB. */
+ return g;
+ }
+ return NULL;
+}
+
+/* Optimize away redundant UBSAN_NULL calls. */
+
+static bool
+maybe_optimize_ubsan_null_ifn (class sanopt_ctx *ctx, gimple *stmt)
+{
+ gcc_assert (gimple_call_num_args (stmt) == 3);
+ tree ptr = gimple_call_arg (stmt, 0);
+ tree cur_align = gimple_call_arg (stmt, 2);
+ gcc_assert (TREE_CODE (cur_align) == INTEGER_CST);
+ bool remove = false;
+
+ auto_vec<gimple *> &v = ctx->null_check_map.get_or_insert (ptr);
+ gimple *g = maybe_get_dominating_check (v);
+ if (!g)
+ {
+ /* For this PTR we don't have any UBSAN_NULL stmts recorded, so there's
+ nothing to optimize yet. */
+ v.safe_push (stmt);
+ return false;
+ }
+
+ /* We already have recorded a UBSAN_NULL check for this pointer. Perhaps we
+ can drop this one. But only if this check doesn't specify stricter
+ alignment. */
+
+ tree align = gimple_call_arg (g, 2);
+ int kind = tree_to_shwi (gimple_call_arg (g, 1));
+ /* If this is a NULL pointer check where we had segv anyway, we can
+ remove it. */
+ if (integer_zerop (align)
+ && (kind == UBSAN_LOAD_OF
+ || kind == UBSAN_STORE_OF
+ || kind == UBSAN_MEMBER_ACCESS))
+ remove = true;
+ /* Otherwise remove the check in non-recovering mode, or if the
+ stmts have same location. */
+ else if (integer_zerop (align))
+ remove = (flag_sanitize_recover & SANITIZE_NULL) == 0
+ || flag_sanitize_undefined_trap_on_error
+ || gimple_location (g) == gimple_location (stmt);
+ else if (tree_int_cst_le (cur_align, align))
+ remove = (flag_sanitize_recover & SANITIZE_ALIGNMENT) == 0
+ || flag_sanitize_undefined_trap_on_error
+ || gimple_location (g) == gimple_location (stmt);
+
+ if (!remove && gimple_bb (g) == gimple_bb (stmt)
+ && tree_int_cst_compare (cur_align, align) == 0)
+ v.pop ();
+
+ if (!remove)
+ v.safe_push (stmt);
+ return remove;
+}
+
+/* Return true when pointer PTR for a given CUR_OFFSET is already sanitized
+ in a given sanitization context CTX. */
+
+static bool
+has_dominating_ubsan_ptr_check (sanopt_ctx *ctx, tree ptr,
+ offset_int &cur_offset)
+{
+ bool pos_p = !wi::neg_p (cur_offset);
+ sanopt_tree_couple couple;
+ couple.ptr = ptr;
+ couple.pos_p = pos_p;
+
+ auto_vec<gimple *> &v = ctx->ptr_check_map.get_or_insert (couple);
+ gimple *g = maybe_get_dominating_check (v);
+ if (!g)
+ return false;
+
+ /* We already have recorded a UBSAN_PTR check for this pointer. Perhaps we
+ can drop this one. But only if this check doesn't specify larger offset.
+ */
+ tree offset = gimple_call_arg (g, 1);
+ gcc_assert (TREE_CODE (offset) == INTEGER_CST);
+ offset_int ooffset = wi::sext (wi::to_offset (offset), POINTER_SIZE);
+
+ if (pos_p)
+ {
+ if (wi::les_p (cur_offset, ooffset))
+ return true;
+ }
+ else if (!pos_p && wi::les_p (ooffset, cur_offset))
+ return true;
+
+ return false;
+}
+
+/* Record UBSAN_PTR check of given context CTX. Register pointer PTR on
+ a given OFFSET that it's handled by GIMPLE STMT. */
+
+static void
+record_ubsan_ptr_check_stmt (sanopt_ctx *ctx, gimple *stmt, tree ptr,
+ const offset_int &offset)
+{
+ sanopt_tree_couple couple;
+ couple.ptr = ptr;
+ couple.pos_p = !wi::neg_p (offset);
+
+ auto_vec<gimple *> &v = ctx->ptr_check_map.get_or_insert (couple);
+ v.safe_push (stmt);
+}
+
+/* Optimize away redundant UBSAN_PTR calls. */
+
+static bool
+maybe_optimize_ubsan_ptr_ifn (sanopt_ctx *ctx, gimple *stmt)
+{
+ poly_int64 bitsize, pbitpos;
+ machine_mode mode;
+ int volatilep = 0, reversep, unsignedp = 0;
+ tree offset;
+
+ gcc_assert (gimple_call_num_args (stmt) == 2);
+ tree ptr = gimple_call_arg (stmt, 0);
+ tree off = gimple_call_arg (stmt, 1);
+
+ if (TREE_CODE (off) != INTEGER_CST)
+ return false;
+
+ if (integer_zerop (off))
+ return true;
+
+ offset_int cur_offset = wi::sext (wi::to_offset (off), POINTER_SIZE);
+ if (has_dominating_ubsan_ptr_check (ctx, ptr, cur_offset))
+ return true;
+
+ tree base = ptr;
+ if (TREE_CODE (base) == ADDR_EXPR)
+ {
+ base = TREE_OPERAND (base, 0);
+
+ HOST_WIDE_INT bitpos;
+ base = get_inner_reference (base, &bitsize, &pbitpos, &offset, &mode,
+ &unsignedp, &reversep, &volatilep);
+ if ((offset == NULL_TREE || TREE_CODE (offset) == INTEGER_CST)
+ && DECL_P (base)
+ && ((!VAR_P (base)
+ && TREE_CODE (base) != PARM_DECL
+ && TREE_CODE (base) != RESULT_DECL)
+ || !DECL_REGISTER (base))
+ && pbitpos.is_constant (&bitpos))
+ {
+ offset_int expr_offset;
+ if (offset)
+ expr_offset = wi::to_offset (offset) + bitpos / BITS_PER_UNIT;
+ else
+ expr_offset = bitpos / BITS_PER_UNIT;
+ expr_offset = wi::sext (expr_offset, POINTER_SIZE);
+ offset_int total_offset = expr_offset + cur_offset;
+ if (total_offset != wi::sext (total_offset, POINTER_SIZE))
+ {
+ record_ubsan_ptr_check_stmt (ctx, stmt, ptr, cur_offset);
+ return false;
+ }
+
+ /* If BASE is a fixed size automatic variable or
+ global variable defined in the current TU, we don't have
+ to instrument anything if offset is within address
+ of the variable. */
+ if ((VAR_P (base)
+ || TREE_CODE (base) == PARM_DECL
+ || TREE_CODE (base) == RESULT_DECL)
+ && DECL_SIZE_UNIT (base)
+ && TREE_CODE (DECL_SIZE_UNIT (base)) == INTEGER_CST
+ && (!is_global_var (base) || decl_binds_to_current_def_p (base)))
+ {
+ offset_int base_size = wi::to_offset (DECL_SIZE_UNIT (base));
+ if (!wi::neg_p (expr_offset)
+ && wi::les_p (total_offset, base_size))
+ {
+ if (!wi::neg_p (total_offset)
+ && wi::les_p (total_offset, base_size))
+ return true;
+ }
+ }
+
+ /* Following expression: UBSAN_PTR (&MEM_REF[ptr + x], y) can be
+ handled as follows:
+
+ 1) sign (x) == sign (y), then check for dominating check of (x + y)
+ 2) sign (x) != sign (y), then first check if we have a dominating
+ check for ptr + x. If so, then we have 2 situations:
+ a) sign (x) == sign (x + y), here we are done, example:
+ UBSAN_PTR (&MEM_REF[ptr + 100], -50)
+ b) check for dominating check of ptr + x + y.
+ */
+
+ bool sign_cur_offset = !wi::neg_p (cur_offset);
+ bool sign_expr_offset = !wi::neg_p (expr_offset);
+
+ tree base_addr
+ = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (base)), base);
+
+ bool add = false;
+ if (sign_cur_offset == sign_expr_offset)
+ {
+ if (has_dominating_ubsan_ptr_check (ctx, base_addr, total_offset))
+ return true;
+ else
+ add = true;
+ }
+ else
+ {
+ if (!has_dominating_ubsan_ptr_check (ctx, base_addr, expr_offset))
+ ; /* Don't record base_addr + expr_offset, it's not a guarding
+ check. */
+ else
+ {
+ bool sign_total_offset = !wi::neg_p (total_offset);
+ if (sign_expr_offset == sign_total_offset)
+ return true;
+ else
+ {
+ if (has_dominating_ubsan_ptr_check (ctx, base_addr,
+ total_offset))
+ return true;
+ else
+ add = true;
+ }
+ }
+ }
+
+ /* Record a new dominating check for base_addr + total_offset. */
+ if (add && !operand_equal_p (base, base_addr, 0))
+ record_ubsan_ptr_check_stmt (ctx, stmt, base_addr,
+ total_offset);
+ }
+ }
+
+ /* For this PTR we don't have any UBSAN_PTR stmts recorded, so there's
+ nothing to optimize yet. */
+ record_ubsan_ptr_check_stmt (ctx, stmt, ptr, cur_offset);
+
+ return false;
+}
+
+/* Optimize away redundant UBSAN_VPTR calls. The second argument
+ is the value loaded from the virtual table, so rely on FRE to find out
+ when we can actually optimize. */
+
+static bool
+maybe_optimize_ubsan_vptr_ifn (class sanopt_ctx *ctx, gimple *stmt)
+{
+ gcc_assert (gimple_call_num_args (stmt) == 5);
+ sanopt_tree_triplet triplet;
+ triplet.t1 = gimple_call_arg (stmt, 0);
+ triplet.t2 = gimple_call_arg (stmt, 1);
+ triplet.t3 = gimple_call_arg (stmt, 3);
+
+ auto_vec<gimple *> &v = ctx->vptr_check_map.get_or_insert (triplet);
+ gimple *g = maybe_get_dominating_check (v);
+ if (!g)
+ {
+ /* For this PTR we don't have any UBSAN_VPTR stmts recorded, so there's
+ nothing to optimize yet. */
+ v.safe_push (stmt);
+ return false;
+ }
+
+ return true;
+}
+
+/* Returns TRUE if ASan check of length LEN in block BB can be removed
+ if preceded by checks in V. */
+
+static bool
+can_remove_asan_check (auto_vec<gimple *> &v, tree len, basic_block bb)
+{
+ unsigned int i;
+ gimple *g;
+ gimple *to_pop = NULL;
+ bool remove = false;
+ basic_block last_bb = bb;
+ bool cleanup = false;
+
+ FOR_EACH_VEC_ELT_REVERSE (v, i, g)
+ {
+ basic_block gbb = gimple_bb (g);
+ sanopt_info *si = (sanopt_info *) gbb->aux;
+ if (gimple_uid (g) < si->freeing_call_events)
+ {
+ /* If there is a potentially freeing call after g in gbb, we should
+ remove it from the vector, can't use in optimization. */
+ cleanup = true;
+ continue;
+ }
+
+ tree glen = gimple_call_arg (g, 2);
+ gcc_assert (TREE_CODE (glen) == INTEGER_CST);
+
+ /* If we've checked only smaller length than we want to check now,
+ we can't remove the current stmt. If g is in the same basic block,
+ we want to remove it though, as the current stmt is better. */
+ if (tree_int_cst_lt (glen, len))
+ {
+ if (gbb == bb)
+ {
+ to_pop = g;
+ cleanup = true;
+ }
+ continue;
+ }
+
+ while (last_bb != gbb)
+ {
+ /* Paths from last_bb to bb have been checked before.
+ gbb is necessarily a dominator of last_bb, but not necessarily
+ immediate dominator. */
+ if (((sanopt_info *) last_bb->aux)->freeing_call_events)
+ break;
+
+ basic_block imm = get_immediate_dominator (CDI_DOMINATORS, last_bb);
+ gcc_assert (imm);
+ if (imm_dom_path_with_freeing_call (last_bb, imm))
+ break;
+
+ last_bb = imm;
+ }
+ if (last_bb == gbb)
+ remove = true;
+ break;
+ }
+
+ if (cleanup)
+ {
+ unsigned int j = 0, l = v.length ();
+ for (i = 0; i < l; i++)
+ if (v[i] != to_pop
+ && (gimple_uid (v[i])
+ == ((sanopt_info *)
+ gimple_bb (v[i])->aux)->freeing_call_events))
+ {
+ if (i != j)
+ v[j] = v[i];
+ j++;
+ }
+ v.truncate (j);
+ }
+
+ return remove;
+}
+
+/* Optimize away redundant ASAN_CHECK calls. */
+
+static bool
+maybe_optimize_asan_check_ifn (class sanopt_ctx *ctx, gimple *stmt)
+{
+ gcc_assert (gimple_call_num_args (stmt) == 4);
+ tree ptr = gimple_call_arg (stmt, 1);
+ tree len = gimple_call_arg (stmt, 2);
+ basic_block bb = gimple_bb (stmt);
+ sanopt_info *info = (sanopt_info *) bb->aux;
+
+ if (TREE_CODE (len) != INTEGER_CST)
+ return false;
+ if (integer_zerop (len))
+ return false;
+
+ gimple_set_uid (stmt, info->freeing_call_events);
+
+ auto_vec<gimple *> *ptr_checks = &ctx->asan_check_map.get_or_insert (ptr);
+
+ tree base_addr = maybe_get_single_definition (ptr);
+ auto_vec<gimple *> *base_checks = NULL;
+ if (base_addr)
+ {
+ base_checks = &ctx->asan_check_map.get_or_insert (base_addr);
+ /* Original pointer might have been invalidated. */
+ ptr_checks = ctx->asan_check_map.get (ptr);
+ }
+
+ gimple *g = maybe_get_dominating_check (*ptr_checks);
+ gimple *g2 = NULL;
+
+ if (base_checks)
+ /* Try with base address as well. */
+ g2 = maybe_get_dominating_check (*base_checks);
+
+ if (g == NULL && g2 == NULL)
+ {
+ /* For this PTR we don't have any ASAN_CHECK stmts recorded, so there's
+ nothing to optimize yet. */
+ ptr_checks->safe_push (stmt);
+ if (base_checks)
+ base_checks->safe_push (stmt);
+ return false;
+ }
+
+ bool remove = false;
+
+ if (ptr_checks)
+ remove = can_remove_asan_check (*ptr_checks, len, bb);
+
+ if (!remove && base_checks)
+ /* Try with base address as well. */
+ remove = can_remove_asan_check (*base_checks, len, bb);
+
+ if (!remove)
+ {
+ ptr_checks->safe_push (stmt);
+ if (base_checks)
+ base_checks->safe_push (stmt);
+ }
+
+ return remove;
+}
+
+/* Try to optimize away redundant UBSAN_NULL and ASAN_CHECK calls.
+
+ We walk blocks in the CFG via a depth first search of the dominator
+ tree; we push unique UBSAN_NULL or ASAN_CHECK statements into a vector
+ in the NULL_CHECK_MAP or ASAN_CHECK_MAP hash maps as we enter the
+ blocks. When leaving a block, we mark the block as visited; then
+ when checking the statements in the vector, we ignore statements that
+ are coming from already visited blocks, because these cannot dominate
+ anything anymore. CTX is a sanopt context. */
+
+static void
+sanopt_optimize_walker (basic_block bb, class sanopt_ctx *ctx)
+{
+ basic_block son;
+ gimple_stmt_iterator gsi;
+ sanopt_info *info = (sanopt_info *) bb->aux;
+ bool asan_check_optimize
+ = ((flag_sanitize & (SANITIZE_ADDRESS | SANITIZE_HWADDRESS)) != 0);
+
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi);)
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ bool remove = false;
+
+ if (!is_gimple_call (stmt))
+ {
+ /* Handle asm volatile or asm with "memory" clobber
+ the same as potentionally freeing call. */
+ gasm *asm_stmt = dyn_cast <gasm *> (stmt);
+ if (asm_stmt
+ && asan_check_optimize
+ && (gimple_asm_clobbers_memory_p (asm_stmt)
+ || gimple_asm_volatile_p (asm_stmt)))
+ info->freeing_call_events++;
+ gsi_next (&gsi);
+ continue;
+ }
+
+ if (asan_check_optimize && !nonfreeing_call_p (stmt))
+ info->freeing_call_events++;
+
+ /* If __asan_before_dynamic_init ("module"); is followed by
+ __asan_after_dynamic_init (); without intervening memory loads/stores,
+ there is nothing to guard, so optimize both away. */
+ if (asan_check_optimize
+ && gimple_call_builtin_p (stmt, BUILT_IN_ASAN_BEFORE_DYNAMIC_INIT))
+ {
+ gcc_assert (!hwasan_sanitize_p ());
+ use_operand_p use;
+ gimple *use_stmt;
+ if (single_imm_use (gimple_vdef (stmt), &use, &use_stmt))
+ {
+ if (is_gimple_call (use_stmt)
+ && gimple_call_builtin_p (use_stmt,
+ BUILT_IN_ASAN_AFTER_DYNAMIC_INIT))
+ {
+ unlink_stmt_vdef (use_stmt);
+ gimple_stmt_iterator gsi2 = gsi_for_stmt (use_stmt);
+ gsi_remove (&gsi2, true);
+ remove = true;
+ }
+ }
+ }
+
+ if (gimple_call_internal_p (stmt))
+ switch (gimple_call_internal_fn (stmt))
+ {
+ case IFN_UBSAN_NULL:
+ remove = maybe_optimize_ubsan_null_ifn (ctx, stmt);
+ break;
+ case IFN_UBSAN_VPTR:
+ remove = maybe_optimize_ubsan_vptr_ifn (ctx, stmt);
+ break;
+ case IFN_UBSAN_PTR:
+ remove = maybe_optimize_ubsan_ptr_ifn (ctx, stmt);
+ break;
+ case IFN_HWASAN_CHECK:
+ case IFN_ASAN_CHECK:
+ if (asan_check_optimize)
+ remove = maybe_optimize_asan_check_ifn (ctx, stmt);
+ if (!remove)
+ ctx->asan_num_accesses++;
+ break;
+ case IFN_ASAN_MARK:
+ ctx->contains_asan_mark = true;
+ break;
+ default:
+ break;
+ }
+
+ if (remove)
+ {
+ /* Drop this check. */
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ {
+ fprintf (dump_file, "Optimizing out: ");
+ print_gimple_stmt (dump_file, stmt, 0, dump_flags);
+ }
+ unlink_stmt_vdef (stmt);
+ gsi_remove (&gsi, true);
+ }
+ else
+ {
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ {
+ fprintf (dump_file, "Leaving: ");
+ print_gimple_stmt (dump_file, stmt, 0, dump_flags);
+ }
+
+ gsi_next (&gsi);
+ }
+ }
+
+ if (asan_check_optimize)
+ {
+ info->has_freeing_call_p = info->freeing_call_events != 0;
+ info->has_freeing_call_computed_p = true;
+ }
+
+ for (son = first_dom_son (CDI_DOMINATORS, bb);
+ son;
+ son = next_dom_son (CDI_DOMINATORS, son))
+ sanopt_optimize_walker (son, ctx);
+
+ /* We're leaving this BB, so mark it to that effect. */
+ info->visited_p = true;
+}
+
+/* Try to remove redundant sanitizer checks in function FUN. */
+
+static int
+sanopt_optimize (function *fun, bool *contains_asan_mark)
+{
+ class sanopt_ctx ctx;
+ ctx.asan_num_accesses = 0;
+ ctx.contains_asan_mark = false;
+
+ /* Set up block info for each basic block. */
+ alloc_aux_for_blocks (sizeof (sanopt_info));
+
+ /* We're going to do a dominator walk, so ensure that we have
+ dominance information. */
+ calculate_dominance_info (CDI_DOMINATORS);
+
+ /* Recursively walk the dominator tree optimizing away
+ redundant checks. */
+ sanopt_optimize_walker (ENTRY_BLOCK_PTR_FOR_FN (fun), &ctx);
+
+ free_aux_for_blocks ();
+
+ *contains_asan_mark = ctx.contains_asan_mark;
+ return ctx.asan_num_accesses;
+}
+
+/* Perform optimization of sanitize functions. */
+
+namespace {
+
+const pass_data pass_data_sanopt =
+{
+ GIMPLE_PASS, /* type */
+ "sanopt", /* name */
+ OPTGROUP_NONE, /* optinfo_flags */
+ TV_NONE, /* tv_id */
+ ( PROP_ssa | PROP_cfg | PROP_gimple_leh ), /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ TODO_update_ssa, /* todo_flags_finish */
+};
+
+class pass_sanopt : public gimple_opt_pass
+{
+public:
+ pass_sanopt (gcc::context *ctxt)
+ : gimple_opt_pass (pass_data_sanopt, ctxt)
+ {}
+
+ /* opt_pass methods: */
+ virtual bool gate (function *) { return flag_sanitize; }
+ virtual unsigned int execute (function *);
+
+}; // class pass_sanopt
+
+/* Sanitize all ASAN_MARK unpoison calls that are not reachable by a BB
+ that contains an ASAN_MARK poison. All these ASAN_MARK unpoison call
+ can be removed as all variables are unpoisoned in a function prologue. */
+
+static void
+sanitize_asan_mark_unpoison (void)
+{
+ /* 1) Find all BBs that contain an ASAN_MARK poison call. */
+ auto_sbitmap with_poison (last_basic_block_for_fn (cfun) + 1);
+ bitmap_clear (with_poison);
+ basic_block bb;
+
+ FOR_EACH_BB_FN (bb, cfun)
+ {
+ if (bitmap_bit_p (with_poison, bb->index))
+ continue;
+
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_last_bb (bb); !gsi_end_p (gsi); gsi_prev (&gsi))
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ if (asan_mark_p (stmt, ASAN_MARK_POISON))
+ {
+ bitmap_set_bit (with_poison, bb->index);
+ break;
+ }
+ }
+ }
+
+ auto_sbitmap poisoned (last_basic_block_for_fn (cfun) + 1);
+ bitmap_clear (poisoned);
+ auto_sbitmap worklist (last_basic_block_for_fn (cfun) + 1);
+ bitmap_copy (worklist, with_poison);
+
+ /* 2) Propagate the information to all reachable blocks. */
+ while (!bitmap_empty_p (worklist))
+ {
+ unsigned i = bitmap_first_set_bit (worklist);
+ bitmap_clear_bit (worklist, i);
+ basic_block bb = BASIC_BLOCK_FOR_FN (cfun, i);
+ gcc_assert (bb);
+
+ edge e;
+ edge_iterator ei;
+ FOR_EACH_EDGE (e, ei, bb->succs)
+ if (!bitmap_bit_p (poisoned, e->dest->index))
+ {
+ bitmap_set_bit (poisoned, e->dest->index);
+ bitmap_set_bit (worklist, e->dest->index);
+ }
+ }
+
+ /* 3) Iterate all BBs not included in POISONED BBs and remove unpoison
+ ASAN_MARK preceding an ASAN_MARK poison (which can still happen). */
+ FOR_EACH_BB_FN (bb, cfun)
+ {
+ if (bitmap_bit_p (poisoned, bb->index))
+ continue;
+
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi);)
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ if (gimple_call_internal_p (stmt, IFN_ASAN_MARK))
+ {
+ if (asan_mark_p (stmt, ASAN_MARK_POISON))
+ break;
+ else
+ {
+ if (dump_file)
+ fprintf (dump_file, "Removing ASAN_MARK unpoison\n");
+ unlink_stmt_vdef (stmt);
+ release_defs (stmt);
+ gsi_remove (&gsi, true);
+ continue;
+ }
+ }
+
+ gsi_next (&gsi);
+ }
+ }
+}
+
+/* Return true when STMT is either ASAN_CHECK call or a call of a function
+ that can contain an ASAN_CHECK. */
+
+static bool
+maybe_contains_asan_check (gimple *stmt)
+{
+ if (is_gimple_call (stmt))
+ {
+ if (gimple_call_internal_p (stmt, IFN_ASAN_MARK))
+ return false;
+ else
+ return !(gimple_call_flags (stmt) & ECF_CONST);
+ }
+ else if (is_a<gasm *> (stmt))
+ return true;
+
+ return false;
+}
+
+/* Sanitize all ASAN_MARK poison calls that are not followed by an ASAN_CHECK
+ call. These calls can be removed. */
+
+static void
+sanitize_asan_mark_poison (void)
+{
+ /* 1) Find all BBs that possibly contain an ASAN_CHECK. */
+ auto_sbitmap with_check (last_basic_block_for_fn (cfun) + 1);
+ bitmap_clear (with_check);
+ basic_block bb;
+
+ FOR_EACH_BB_FN (bb, cfun)
+ {
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_last_bb (bb); !gsi_end_p (gsi); gsi_prev (&gsi))
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ if (maybe_contains_asan_check (stmt))
+ {
+ bitmap_set_bit (with_check, bb->index);
+ break;
+ }
+ }
+ }
+
+ auto_sbitmap can_reach_check (last_basic_block_for_fn (cfun) + 1);
+ bitmap_clear (can_reach_check);
+ auto_sbitmap worklist (last_basic_block_for_fn (cfun) + 1);
+ bitmap_copy (worklist, with_check);
+
+ /* 2) Propagate the information to all definitions blocks. */
+ while (!bitmap_empty_p (worklist))
+ {
+ unsigned i = bitmap_first_set_bit (worklist);
+ bitmap_clear_bit (worklist, i);
+ basic_block bb = BASIC_BLOCK_FOR_FN (cfun, i);
+ gcc_assert (bb);
+
+ edge e;
+ edge_iterator ei;
+ FOR_EACH_EDGE (e, ei, bb->preds)
+ if (!bitmap_bit_p (can_reach_check, e->src->index))
+ {
+ bitmap_set_bit (can_reach_check, e->src->index);
+ bitmap_set_bit (worklist, e->src->index);
+ }
+ }
+
+ /* 3) Iterate all BBs not included in CAN_REACH_CHECK BBs and remove poison
+ ASAN_MARK not followed by a call to function having an ASAN_CHECK. */
+ FOR_EACH_BB_FN (bb, cfun)
+ {
+ if (bitmap_bit_p (can_reach_check, bb->index))
+ continue;
+
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_last_bb (bb); !gsi_end_p (gsi);)
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ if (maybe_contains_asan_check (stmt))
+ break;
+ else if (asan_mark_p (stmt, ASAN_MARK_POISON))
+ {
+ if (dump_file)
+ fprintf (dump_file, "Removing ASAN_MARK poison\n");
+ unlink_stmt_vdef (stmt);
+ release_defs (stmt);
+ gimple_stmt_iterator gsi2 = gsi;
+ gsi_prev (&gsi);
+ gsi_remove (&gsi2, true);
+ continue;
+ }
+
+ gsi_prev (&gsi);
+ }
+ }
+}
+
+/* Rewrite all usages of tree OP which is a PARM_DECL with a VAR_DECL
+ that is it's DECL_VALUE_EXPR. */
+
+static tree
+rewrite_usage_of_param (tree *op, int *walk_subtrees, void *)
+{
+ if (TREE_CODE (*op) == PARM_DECL && DECL_HAS_VALUE_EXPR_P (*op))
+ {
+ *op = DECL_VALUE_EXPR (*op);
+ *walk_subtrees = 0;
+ }
+
+ return NULL;
+}
+
+/* For a given function FUN, rewrite all addressable parameters so that
+ a new automatic variable is introduced. Right after function entry
+ a parameter is assigned to the variable. */
+
+static void
+sanitize_rewrite_addressable_params (function *fun)
+{
+ gimple *g;
+ gimple_seq stmts = NULL;
+ bool has_any_addressable_param = false;
+ auto_vec<tree> clear_value_expr_list;
+
+ for (tree arg = DECL_ARGUMENTS (current_function_decl);
+ arg; arg = DECL_CHAIN (arg))
+ {
+ tree type = TREE_TYPE (arg);
+ if (TREE_ADDRESSABLE (arg)
+ && !TREE_ADDRESSABLE (type)
+ && !TREE_THIS_VOLATILE (arg)
+ && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST)
+ {
+ TREE_ADDRESSABLE (arg) = 0;
+ DECL_NOT_GIMPLE_REG_P (arg) = 0;
+ /* The parameter is no longer addressable. */
+ has_any_addressable_param = true;
+
+ /* Create a new automatic variable. */
+ tree var = build_decl (DECL_SOURCE_LOCATION (arg),
+ VAR_DECL, DECL_NAME (arg), type);
+ TREE_ADDRESSABLE (var) = 1;
+ DECL_IGNORED_P (var) = 1;
+
+ gimple_add_tmp_var (var);
+
+ /* We skip parameters that have a DECL_VALUE_EXPR. */
+ if (DECL_HAS_VALUE_EXPR_P (arg))
+ continue;
+
+ if (dump_file)
+ {
+ fprintf (dump_file,
+ "Rewriting parameter whose address is taken: ");
+ print_generic_expr (dump_file, arg, dump_flags);
+ fputc ('\n', dump_file);
+ }
+
+ SET_DECL_PT_UID (var, DECL_PT_UID (arg));
+
+ /* Assign value of parameter to newly created variable. */
+ if ((TREE_CODE (type) == COMPLEX_TYPE
+ || TREE_CODE (type) == VECTOR_TYPE))
+ {
+ /* We need to create a SSA name that will be used for the
+ assignment. */
+ tree tmp = get_or_create_ssa_default_def (cfun, arg);
+ g = gimple_build_assign (var, tmp);
+ gimple_set_location (g, DECL_SOURCE_LOCATION (arg));
+ gimple_seq_add_stmt (&stmts, g);
+ }
+ else
+ {
+ g = gimple_build_assign (var, arg);
+ gimple_set_location (g, DECL_SOURCE_LOCATION (arg));
+ gimple_seq_add_stmt (&stmts, g);
+ }
+
+ if (target_for_debug_bind (arg))
+ {
+ g = gimple_build_debug_bind (arg, var, NULL);
+ gimple_seq_add_stmt (&stmts, g);
+ clear_value_expr_list.safe_push (arg);
+ }
+
+ DECL_HAS_VALUE_EXPR_P (arg) = 1;
+ SET_DECL_VALUE_EXPR (arg, var);
+ }
+ }
+
+ if (!has_any_addressable_param)
+ return;
+
+ /* Replace all usages of PARM_DECLs with the newly
+ created variable VAR. */
+ basic_block bb;
+ FOR_EACH_BB_FN (bb, fun)
+ {
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ gimple_stmt_iterator it = gsi_for_stmt (stmt);
+ walk_gimple_stmt (&it, NULL, rewrite_usage_of_param, NULL);
+ }
+ for (gsi = gsi_start_phis (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gphi *phi = dyn_cast<gphi *> (gsi_stmt (gsi));
+ for (unsigned i = 0; i < gimple_phi_num_args (phi); ++i)
+ {
+ hash_set<tree> visited_nodes;
+ walk_tree (gimple_phi_arg_def_ptr (phi, i),
+ rewrite_usage_of_param, NULL, &visited_nodes);
+ }
+ }
+ }
+
+ /* Unset value expr for parameters for which we created debug bind
+ expressions. */
+ for (tree arg : clear_value_expr_list)
+ {
+ DECL_HAS_VALUE_EXPR_P (arg) = 0;
+ SET_DECL_VALUE_EXPR (arg, NULL_TREE);
+ }
+
+ /* Insert default assignments at the beginning of a function. */
+ basic_block entry_bb = ENTRY_BLOCK_PTR_FOR_FN (fun);
+ entry_bb = split_edge (single_succ_edge (entry_bb));
+
+ gimple_stmt_iterator gsi = gsi_start_bb (entry_bb);
+ gsi_insert_seq_before (&gsi, stmts, GSI_NEW_STMT);
+}
+
+unsigned int
+pass_sanopt::execute (function *fun)
+{
+ /* n.b. ASAN_MARK is used for both HWASAN and ASAN.
+ asan_num_accesses is hence used to count either HWASAN_CHECK or ASAN_CHECK
+ stuff. This is fine because you can only have one of these active at a
+ time. */
+ basic_block bb;
+ int asan_num_accesses = 0;
+ bool contains_asan_mark = false;
+
+ /* Try to remove redundant checks. */
+ if (optimize
+ && (flag_sanitize
+ & (SANITIZE_NULL | SANITIZE_ALIGNMENT | SANITIZE_HWADDRESS
+ | SANITIZE_ADDRESS | SANITIZE_VPTR | SANITIZE_POINTER_OVERFLOW)))
+ asan_num_accesses = sanopt_optimize (fun, &contains_asan_mark);
+ else if (flag_sanitize & (SANITIZE_ADDRESS | SANITIZE_HWADDRESS))
+ {
+ gimple_stmt_iterator gsi;
+ FOR_EACH_BB_FN (bb, fun)
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ if (gimple_call_internal_p (stmt, IFN_ASAN_CHECK))
+ ++asan_num_accesses;
+ else if (gimple_call_internal_p (stmt, IFN_ASAN_MARK))
+ contains_asan_mark = true;
+ }
+ }
+
+ if (contains_asan_mark)
+ {
+ sanitize_asan_mark_unpoison ();
+ sanitize_asan_mark_poison ();
+ }
+
+ if (asan_sanitize_stack_p () || hwasan_sanitize_stack_p ())
+ sanitize_rewrite_addressable_params (fun);
+
+ bool use_calls = param_asan_instrumentation_with_call_threshold < INT_MAX
+ && asan_num_accesses >= param_asan_instrumentation_with_call_threshold;
+
+ hash_map<tree, tree> shadow_vars_mapping;
+ bool need_commit_edge_insert = false;
+ FOR_EACH_BB_FN (bb, fun)
+ {
+ gimple_stmt_iterator gsi;
+ for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); )
+ {
+ gimple *stmt = gsi_stmt (gsi);
+ bool no_next = false;
+
+ if (!is_gimple_call (stmt))
+ {
+ gsi_next (&gsi);
+ continue;
+ }
+
+ if (gimple_call_internal_p (stmt))
+ {
+ enum internal_fn ifn = gimple_call_internal_fn (stmt);
+ switch (ifn)
+ {
+ case IFN_UBSAN_NULL:
+ no_next = ubsan_expand_null_ifn (&gsi);
+ break;
+ case IFN_UBSAN_BOUNDS:
+ no_next = ubsan_expand_bounds_ifn (&gsi);
+ break;
+ case IFN_UBSAN_OBJECT_SIZE:
+ no_next = ubsan_expand_objsize_ifn (&gsi);
+ break;
+ case IFN_UBSAN_PTR:
+ no_next = ubsan_expand_ptr_ifn (&gsi);
+ break;
+ case IFN_UBSAN_VPTR:
+ no_next = ubsan_expand_vptr_ifn (&gsi);
+ break;
+ case IFN_HWASAN_CHECK:
+ no_next = hwasan_expand_check_ifn (&gsi, use_calls);
+ break;
+ case IFN_ASAN_CHECK:
+ no_next = asan_expand_check_ifn (&gsi, use_calls);
+ break;
+ case IFN_ASAN_MARK:
+ no_next = asan_expand_mark_ifn (&gsi);
+ break;
+ case IFN_ASAN_POISON:
+ no_next = asan_expand_poison_ifn (&gsi,
+ &need_commit_edge_insert,
+ shadow_vars_mapping);
+ break;
+ case IFN_HWASAN_MARK:
+ no_next = hwasan_expand_mark_ifn (&gsi);
+ break;
+ default:
+ break;
+ }
+ }
+ else if (gimple_call_builtin_p (stmt, BUILT_IN_NORMAL))
+ {
+ tree callee = gimple_call_fndecl (stmt);
+ switch (DECL_FUNCTION_CODE (callee))
+ {
+ case BUILT_IN_UNREACHABLE:
+ if (sanitize_flags_p (SANITIZE_UNREACHABLE))
+ no_next = ubsan_instrument_unreachable (&gsi);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (dump_file && (dump_flags & TDF_DETAILS))
+ {
+ fprintf (dump_file, "Expanded: ");
+ print_gimple_stmt (dump_file, stmt, 0, dump_flags);
+ }
+
+ if (!no_next)
+ gsi_next (&gsi);
+ }
+ }
+
+ if (need_commit_edge_insert)
+ gsi_commit_edge_inserts ();
+
+ return 0;
+}
+
+} // anon namespace
+
+gimple_opt_pass *
+make_pass_sanopt (gcc::context *ctxt)
+{
+ return new pass_sanopt (ctxt);
+}
generated by cgit v1.1 at 2025-04-01 08:24:00 +0000