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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/ddg.cc
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
downloadgcc-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... * 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/ddg.cc')
-rw-r--r--gcc/ddg.cc1160
1 files changed, 1160 insertions, 0 deletions
diff --git a/gcc/ddg.cc b/gcc/ddg.cc
new file mode 100644
index 00000000000..6069b0c8630
--- /dev/null
+++ b/gcc/ddg.cc
@@ -0,0 +1,1160 @@
+/* DDG - Data Dependence Graph implementation.
+ Copyright (C) 2004-2022 Free Software Foundation, Inc.
+ Contributed by Ayal Zaks and Mustafa Hagog <zaks,mustafa@il.ibm.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 "rtl.h"
+#include "df.h"
+#include "insn-attr.h"
+#include "sched-int.h"
+#include "ddg.h"
+#include "rtl-iter.h"
+
+#ifdef INSN_SCHEDULING
+
+/* Forward declarations. */
+static void add_backarc_to_ddg (ddg_ptr, ddg_edge_ptr);
+static void add_backarc_to_scc (ddg_scc_ptr, ddg_edge_ptr);
+static void add_scc_to_ddg (ddg_all_sccs_ptr, ddg_scc_ptr);
+static void create_ddg_dep_from_intra_loop_link (ddg_ptr, ddg_node_ptr,
+ ddg_node_ptr, dep_t);
+static void create_ddg_dep_no_link (ddg_ptr, ddg_node_ptr, ddg_node_ptr,
+ dep_type, dep_data_type, int);
+static ddg_edge_ptr create_ddg_edge (ddg_node_ptr, ddg_node_ptr, dep_type,
+ dep_data_type, int, int);
+static void add_edge_to_ddg (ddg_ptr g, ddg_edge_ptr);
+
+/* Auxiliary variable for mem_read_insn_p/mem_write_insn_p. */
+static bool mem_ref_p;
+
+/* Auxiliary function for mem_read_insn_p. */
+static void
+mark_mem_use (rtx *x, void *)
+{
+ subrtx_iterator::array_type array;
+ FOR_EACH_SUBRTX (iter, array, *x, NONCONST)
+ if (MEM_P (*iter))
+ {
+ mem_ref_p = true;
+ break;
+ }
+}
+
+/* Returns nonzero if INSN reads from memory. */
+static bool
+mem_read_insn_p (rtx_insn *insn)
+{
+ mem_ref_p = false;
+ note_uses (&PATTERN (insn), mark_mem_use, NULL);
+ return mem_ref_p;
+}
+
+static void
+mark_mem_store (rtx loc, const_rtx setter ATTRIBUTE_UNUSED, void *data ATTRIBUTE_UNUSED)
+{
+ if (MEM_P (loc))
+ mem_ref_p = true;
+}
+
+/* Returns nonzero if INSN writes to memory. */
+static bool
+mem_write_insn_p (rtx_insn *insn)
+{
+ mem_ref_p = false;
+ note_stores (insn, mark_mem_store, NULL);
+ return mem_ref_p;
+}
+
+/* Returns nonzero if X has access to memory. */
+static bool
+rtx_mem_access_p (rtx x)
+{
+ int i, j;
+ const char *fmt;
+ enum rtx_code code;
+
+ if (x == 0)
+ return false;
+
+ if (MEM_P (x))
+ return true;
+
+ code = GET_CODE (x);
+ fmt = GET_RTX_FORMAT (code);
+ for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
+ {
+ if (fmt[i] == 'e')
+ {
+ if (rtx_mem_access_p (XEXP (x, i)))
+ return true;
+ }
+ else if (fmt[i] == 'E')
+ for (j = 0; j < XVECLEN (x, i); j++)
+ {
+ if (rtx_mem_access_p (XVECEXP (x, i, j)))
+ return true;
+ }
+ }
+ return false;
+}
+
+/* Returns nonzero if INSN reads to or writes from memory. */
+static bool
+mem_access_insn_p (rtx_insn *insn)
+{
+ return rtx_mem_access_p (PATTERN (insn));
+}
+
+/* Return true if DEF_INSN contains address being auto-inc or auto-dec
+ which is used in USE_INSN. Otherwise return false. The result is
+ being used to decide whether to remove the edge between def_insn and
+ use_insn when -fmodulo-sched-allow-regmoves is set. This function
+ doesn't need to consider the specific address register; no reg_moves
+ will be allowed for any life range defined by def_insn and used
+ by use_insn, if use_insn uses an address register auto-inc'ed by
+ def_insn. */
+bool
+autoinc_var_is_used_p (rtx_insn *def_insn, rtx_insn *use_insn)
+{
+ rtx note;
+
+ for (note = REG_NOTES (def_insn); note; note = XEXP (note, 1))
+ if (REG_NOTE_KIND (note) == REG_INC
+ && reg_referenced_p (XEXP (note, 0), PATTERN (use_insn)))
+ return true;
+
+ return false;
+}
+
+/* Return true if one of the definitions in INSN has MODE_CC. Otherwise
+ return false. */
+static bool
+def_has_ccmode_p (rtx_insn *insn)
+{
+ df_ref def;
+
+ FOR_EACH_INSN_DEF (def, insn)
+ {
+ machine_mode mode = GET_MODE (DF_REF_REG (def));
+
+ if (GET_MODE_CLASS (mode) == MODE_CC)
+ return true;
+ }
+
+ return false;
+}
+
+/* Computes the dependence parameters (latency, distance etc.), creates
+ a ddg_edge and adds it to the given DDG. */
+static void
+create_ddg_dep_from_intra_loop_link (ddg_ptr g, ddg_node_ptr src_node,
+ ddg_node_ptr dest_node, dep_t link)
+{
+ ddg_edge_ptr e;
+ int latency, distance = 0;
+ dep_type t = TRUE_DEP;
+ dep_data_type dt = (mem_access_insn_p (src_node->insn)
+ && mem_access_insn_p (dest_node->insn) ? MEM_DEP
+ : REG_DEP);
+ gcc_assert (src_node->cuid < dest_node->cuid);
+ gcc_assert (link);
+
+ /* Note: REG_DEP_ANTI applies to MEM ANTI_DEP as well!! */
+ if (DEP_TYPE (link) == REG_DEP_ANTI)
+ t = ANTI_DEP;
+ else if (DEP_TYPE (link) == REG_DEP_OUTPUT)
+ t = OUTPUT_DEP;
+
+ /* We currently choose not to create certain anti-deps edges and
+ compensate for that by generating reg-moves based on the life-range
+ analysis. The anti-deps that will be deleted are the ones which
+ have true-deps edges in the opposite direction (in other words
+ the kernel has only one def of the relevant register).
+ If the address that is being auto-inc or auto-dec in DEST_NODE
+ is used in SRC_NODE then do not remove the edge to make sure
+ reg-moves will not be created for this address.
+ TODO: support the removal of all anti-deps edges, i.e. including those
+ whose register has multiple defs in the loop. */
+ if (flag_modulo_sched_allow_regmoves
+ && (t == ANTI_DEP && dt == REG_DEP)
+ && !def_has_ccmode_p (dest_node->insn)
+ && !autoinc_var_is_used_p (dest_node->insn, src_node->insn))
+ {
+ rtx set;
+
+ set = single_set (dest_node->insn);
+ /* TODO: Handle registers that REG_P is not true for them, i.e.
+ subregs and special registers. */
+ if (set && REG_P (SET_DEST (set)))
+ {
+ int regno = REGNO (SET_DEST (set));
+ df_ref first_def;
+ class df_rd_bb_info *bb_info = DF_RD_BB_INFO (g->bb);
+
+ first_def = df_bb_regno_first_def_find (g->bb, regno);
+ gcc_assert (first_def);
+
+ if (bitmap_bit_p (&bb_info->gen, DF_REF_ID (first_def)))
+ return;
+ }
+ }
+
+ latency = dep_cost (link);
+ e = create_ddg_edge (src_node, dest_node, t, dt, latency, distance);
+ add_edge_to_ddg (g, e);
+}
+
+/* The same as the above function, but it doesn't require a link parameter. */
+static void
+create_ddg_dep_no_link (ddg_ptr g, ddg_node_ptr from, ddg_node_ptr to,
+ dep_type d_t, dep_data_type d_dt, int distance)
+{
+ ddg_edge_ptr e;
+ int l;
+ enum reg_note dep_kind;
+ struct _dep _dep, *dep = &_dep;
+
+ if (d_t == ANTI_DEP)
+ dep_kind = REG_DEP_ANTI;
+ else if (d_t == OUTPUT_DEP)
+ dep_kind = REG_DEP_OUTPUT;
+ else
+ {
+ gcc_assert (d_t == TRUE_DEP);
+
+ dep_kind = REG_DEP_TRUE;
+ }
+
+ init_dep (dep, from->insn, to->insn, dep_kind);
+
+ l = dep_cost (dep);
+
+ e = create_ddg_edge (from, to, d_t, d_dt, l, distance);
+ if (distance > 0)
+ add_backarc_to_ddg (g, e);
+ else
+ add_edge_to_ddg (g, e);
+}
+
+
+/* Given a downwards exposed register def LAST_DEF (which is the last
+ definition of that register in the bb), add inter-loop true dependences
+ to all its uses in the next iteration, an output dependence to the
+ first def of the same register (possibly itself) in the next iteration
+ and anti-dependences from its uses in the current iteration to the
+ first definition in the next iteration. */
+static void
+add_cross_iteration_register_deps (ddg_ptr g, df_ref last_def)
+{
+ struct df_link *r_use;
+ int has_use_in_bb_p = false;
+ int regno = DF_REF_REGNO (last_def);
+ ddg_node_ptr last_def_node = get_node_of_insn (g, DF_REF_INSN (last_def));
+ df_ref first_def = df_bb_regno_first_def_find (g->bb, regno);
+ ddg_node_ptr first_def_node = get_node_of_insn (g, DF_REF_INSN (first_def));
+ ddg_node_ptr use_node;
+
+ gcc_assert (last_def_node && first_def && first_def_node);
+
+ if (flag_checking && DF_REF_ID (last_def) != DF_REF_ID (first_def))
+ {
+ class df_rd_bb_info *bb_info = DF_RD_BB_INFO (g->bb);
+ gcc_assert (!bitmap_bit_p (&bb_info->gen, DF_REF_ID (first_def)));
+ }
+
+ /* Create inter-loop true dependences and anti dependences. */
+ for (r_use = DF_REF_CHAIN (last_def); r_use != NULL; r_use = r_use->next)
+ {
+ if (DF_REF_BB (r_use->ref) != g->bb)
+ continue;
+
+ gcc_assert (!DF_REF_IS_ARTIFICIAL (r_use->ref)
+ && DF_REF_INSN_INFO (r_use->ref) != NULL);
+
+ rtx_insn *use_insn = DF_REF_INSN (r_use->ref);
+
+ if (DEBUG_INSN_P (use_insn))
+ continue;
+
+ /* ??? Do not handle uses with DF_REF_IN_NOTE notes. */
+ use_node = get_node_of_insn (g, use_insn);
+ gcc_assert (use_node);
+ has_use_in_bb_p = true;
+ if (use_node->cuid <= last_def_node->cuid)
+ {
+ /* Add true deps from last_def to it's uses in the next
+ iteration. Any such upwards exposed use appears before
+ the last_def def. */
+ create_ddg_dep_no_link (g, last_def_node, use_node,
+ TRUE_DEP, REG_DEP, 1);
+ }
+ else
+ {
+ /* Add anti deps from last_def's uses in the current iteration
+ to the first def in the next iteration. We do not add ANTI
+ dep when there is an intra-loop TRUE dep in the opposite
+ direction, but use regmoves to fix such disregarded ANTI
+ deps when broken. If the first_def reaches the USE then
+ there is such a dep.
+ Always create the edge if the use node is a branch in
+ order to prevent the creation of reg-moves.
+ If the address that is being auto-inc or auto-dec in LAST_DEF
+ is used in USE_INSN then do not remove the edge to make sure
+ reg-moves will not be created for that address. */
+ if (DF_REF_ID (last_def) != DF_REF_ID (first_def)
+ || !flag_modulo_sched_allow_regmoves
+ || JUMP_P (use_node->insn)
+ || autoinc_var_is_used_p (DF_REF_INSN (last_def), use_insn)
+ || def_has_ccmode_p (DF_REF_INSN (last_def)))
+ create_ddg_dep_no_link (g, use_node, first_def_node, ANTI_DEP,
+ REG_DEP, 1);
+ }
+ }
+ /* Create an inter-loop output dependence between LAST_DEF (which is the
+ last def in its block, being downwards exposed) and the first def in
+ its block. Avoid creating a self output dependence. Avoid creating
+ an output dependence if there is a dependence path between the two
+ defs starting with a true dependence to a use which can be in the
+ next iteration; followed by an anti dependence of that use to the
+ first def (i.e. if there is a use between the two defs.) */
+ if (!has_use_in_bb_p && DF_REF_ID (last_def) != DF_REF_ID (first_def))
+ create_ddg_dep_no_link (g, last_def_node, first_def_node,
+ OUTPUT_DEP, REG_DEP, 1);
+}
+
+/* Build inter-loop dependencies, by looking at DF analysis backwards. */
+static void
+build_inter_loop_deps (ddg_ptr g)
+{
+ unsigned rd_num;
+ class df_rd_bb_info *rd_bb_info;
+ bitmap_iterator bi;
+
+ rd_bb_info = DF_RD_BB_INFO (g->bb);
+
+ /* Find inter-loop register output, true and anti deps. */
+ EXECUTE_IF_SET_IN_BITMAP (&rd_bb_info->gen, 0, rd_num, bi)
+ {
+ df_ref rd = DF_DEFS_GET (rd_num);
+
+ add_cross_iteration_register_deps (g, rd);
+ }
+}
+
+
+/* Return true if two specified instructions have mem expr with conflict
+ alias sets. */
+static bool
+insns_may_alias_p (rtx_insn *insn1, rtx_insn *insn2)
+{
+ subrtx_iterator::array_type array1;
+ subrtx_iterator::array_type array2;
+ FOR_EACH_SUBRTX (iter1, array1, PATTERN (insn1), NONCONST)
+ {
+ const_rtx x1 = *iter1;
+ if (MEM_P (x1))
+ FOR_EACH_SUBRTX (iter2, array2, PATTERN (insn2), NONCONST)
+ {
+ const_rtx x2 = *iter2;
+ if (MEM_P (x2) && may_alias_p (x2, x1))
+ return true;
+ }
+ }
+ return false;
+}
+
+/* Given two nodes, analyze their RTL insns and add intra-loop mem deps
+ to ddg G. */
+static void
+add_intra_loop_mem_dep (ddg_ptr g, ddg_node_ptr from, ddg_node_ptr to)
+{
+
+ if ((from->cuid == to->cuid)
+ || !insns_may_alias_p (from->insn, to->insn))
+ /* Do not create edge if memory references have disjoint alias sets
+ or 'to' and 'from' are the same instruction. */
+ return;
+
+ if (mem_write_insn_p (from->insn))
+ {
+ if (mem_read_insn_p (to->insn))
+ create_ddg_dep_no_link (g, from, to, TRUE_DEP, MEM_DEP, 0);
+ else
+ create_ddg_dep_no_link (g, from, to, OUTPUT_DEP, MEM_DEP, 0);
+ }
+ else if (!mem_read_insn_p (to->insn))
+ create_ddg_dep_no_link (g, from, to, ANTI_DEP, MEM_DEP, 0);
+}
+
+/* Given two nodes, analyze their RTL insns and add inter-loop mem deps
+ to ddg G. */
+static void
+add_inter_loop_mem_dep (ddg_ptr g, ddg_node_ptr from, ddg_node_ptr to)
+{
+ if (!insns_may_alias_p (from->insn, to->insn))
+ /* Do not create edge if memory references have disjoint alias sets. */
+ return;
+
+ if (mem_write_insn_p (from->insn))
+ {
+ if (mem_read_insn_p (to->insn))
+ create_ddg_dep_no_link (g, from, to, TRUE_DEP, MEM_DEP, 1);
+ else if (from->cuid != to->cuid)
+ create_ddg_dep_no_link (g, from, to, OUTPUT_DEP, MEM_DEP, 1);
+ }
+ else
+ {
+ if (mem_read_insn_p (to->insn))
+ return;
+ else if (from->cuid != to->cuid)
+ {
+ create_ddg_dep_no_link (g, from, to, ANTI_DEP, MEM_DEP, 1);
+ create_ddg_dep_no_link (g, to, from, TRUE_DEP, MEM_DEP, 1);
+ }
+ }
+}
+
+/* Perform intra-block Data Dependency analysis and connect the nodes in
+ the DDG. We assume the loop has a single basic block. */
+static void
+build_intra_loop_deps (ddg_ptr g)
+{
+ int i;
+ /* Hold the dependency analysis state during dependency calculations. */
+ class deps_desc tmp_deps;
+ rtx_insn *head, *tail;
+
+ /* Build the dependence information, using the sched_analyze function. */
+ init_deps_global ();
+ init_deps (&tmp_deps, false);
+
+ /* Do the intra-block data dependence analysis for the given block. */
+ get_ebb_head_tail (g->bb, g->bb, &head, &tail);
+ sched_analyze (&tmp_deps, head, tail);
+
+ /* Build intra-loop data dependencies using the scheduler dependency
+ analysis. */
+ for (i = 0; i < g->num_nodes; i++)
+ {
+ ddg_node_ptr dest_node = &g->nodes[i];
+ sd_iterator_def sd_it;
+ dep_t dep;
+
+ FOR_EACH_DEP (dest_node->insn, SD_LIST_BACK, sd_it, dep)
+ {
+ rtx_insn *src_insn = DEP_PRO (dep);
+ ddg_node_ptr src_node = get_node_of_insn (g, src_insn);
+
+ if (!src_node)
+ continue;
+
+ create_ddg_dep_from_intra_loop_link (g, src_node, dest_node, dep);
+ }
+
+ /* If this insn modifies memory, add an edge to all insns that access
+ memory. */
+ if (mem_access_insn_p (dest_node->insn))
+ {
+ int j;
+
+ for (j = 0; j <= i; j++)
+ {
+ ddg_node_ptr j_node = &g->nodes[j];
+
+ if (mem_access_insn_p (j_node->insn))
+ {
+ /* Don't bother calculating inter-loop dep if an intra-loop dep
+ already exists. */
+ if (! bitmap_bit_p (dest_node->successors, j))
+ add_inter_loop_mem_dep (g, dest_node, j_node);
+ /* If -fmodulo-sched-allow-regmoves
+ is set certain anti-dep edges are not created.
+ It might be that these anti-dep edges are on the
+ path from one memory instruction to another such that
+ removing these edges could cause a violation of the
+ memory dependencies. Thus we add intra edges between
+ every two memory instructions in this case. */
+ if (flag_modulo_sched_allow_regmoves
+ && !bitmap_bit_p (dest_node->predecessors, j))
+ add_intra_loop_mem_dep (g, j_node, dest_node);
+ }
+ }
+ }
+ }
+
+ /* Free the INSN_LISTs. */
+ finish_deps_global ();
+ free_deps (&tmp_deps);
+
+ /* Free dependencies. */
+ sched_free_deps (head, tail, false);
+}
+
+
+/* Given a basic block, create its DDG and return a pointer to a variable
+ of ddg type that represents it.
+ Initialize the ddg structure fields to the appropriate values. */
+ddg_ptr
+create_ddg (basic_block bb, int closing_branch_deps)
+{
+ ddg_ptr g;
+ rtx_insn *insn, *first_note;
+ int i, j;
+ int num_nodes = 0;
+
+ g = (ddg_ptr) xcalloc (1, sizeof (struct ddg));
+
+ g->bb = bb;
+ g->closing_branch_deps = closing_branch_deps;
+
+ /* Count the number of insns in the BB. */
+ for (insn = BB_HEAD (bb); insn != NEXT_INSN (BB_END (bb));
+ insn = NEXT_INSN (insn))
+ {
+ if (!INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE)
+ continue;
+
+ if (NONDEBUG_INSN_P (insn))
+ {
+ if (mem_read_insn_p (insn))
+ g->num_loads++;
+ if (mem_write_insn_p (insn))
+ g->num_stores++;
+ num_nodes++;
+ }
+ }
+
+ /* There is nothing to do for this BB. */
+ if (num_nodes <= 1)
+ {
+ free (g);
+ return NULL;
+ }
+
+ /* Allocate the nodes array, and initialize the nodes. */
+ g->num_nodes = num_nodes;
+ g->nodes = (ddg_node_ptr) xcalloc (num_nodes, sizeof (struct ddg_node));
+ g->closing_branch = NULL;
+ i = 0;
+ first_note = NULL;
+ for (insn = BB_HEAD (bb); insn != NEXT_INSN (BB_END (bb));
+ insn = NEXT_INSN (insn))
+ {
+ if (LABEL_P (insn) || NOTE_INSN_BASIC_BLOCK_P (insn))
+ continue;
+
+ if (!first_note && (INSN_P (insn) || NOTE_P (insn)))
+ first_note = insn;
+
+ if (!INSN_P (insn) || GET_CODE (PATTERN (insn)) == USE)
+ continue;
+
+ if (JUMP_P (insn))
+ {
+ gcc_assert (!g->closing_branch);
+ g->closing_branch = &g->nodes[i];
+ }
+
+ if (NONDEBUG_INSN_P (insn))
+ {
+ g->nodes[i].cuid = i;
+ g->nodes[i].successors = sbitmap_alloc (num_nodes);
+ bitmap_clear (g->nodes[i].successors);
+ g->nodes[i].predecessors = sbitmap_alloc (num_nodes);
+ bitmap_clear (g->nodes[i].predecessors);
+
+ gcc_checking_assert (first_note);
+ g->nodes[i].first_note = first_note;
+
+ g->nodes[i].aux.count = -1;
+ g->nodes[i].max_dist = XCNEWVEC (int, num_nodes);
+ for (j = 0; j < num_nodes; j++)
+ g->nodes[i].max_dist[j] = -1;
+
+ g->nodes[i++].insn = insn;
+ }
+ first_note = NULL;
+ }
+
+ /* We must have found a branch in DDG. */
+ gcc_assert (g->closing_branch);
+
+
+ /* Build the data dependency graph. */
+ build_intra_loop_deps (g);
+ build_inter_loop_deps (g);
+ return g;
+}
+
+/* Free all the memory allocated for the DDG. */
+void
+free_ddg (ddg_ptr g)
+{
+ int i;
+
+ if (!g)
+ return;
+
+ for (i = 0; i < g->num_nodes; i++)
+ {
+ ddg_edge_ptr e = g->nodes[i].out;
+
+ while (e)
+ {
+ ddg_edge_ptr next = e->next_out;
+
+ free (e);
+ e = next;
+ }
+ sbitmap_free (g->nodes[i].successors);
+ sbitmap_free (g->nodes[i].predecessors);
+ free (g->nodes[i].max_dist);
+ }
+ if (g->num_backarcs > 0)
+ free (g->backarcs);
+ free (g->nodes);
+ free (g);
+}
+
+void
+print_ddg_edge (FILE *file, ddg_edge_ptr e)
+{
+ char dep_c;
+
+ switch (e->type)
+ {
+ case OUTPUT_DEP :
+ dep_c = 'O';
+ break;
+ case ANTI_DEP :
+ dep_c = 'A';
+ break;
+ default:
+ dep_c = 'T';
+ }
+
+ fprintf (file, " [%d -(%c,%d,%d)-> %d] ", INSN_UID (e->src->insn),
+ dep_c, e->latency, e->distance, INSN_UID (e->dest->insn));
+}
+
+/* Print the DDG nodes with there in/out edges to the dump file. */
+void
+print_ddg (FILE *file, ddg_ptr g)
+{
+ int i;
+
+ for (i = 0; i < g->num_nodes; i++)
+ {
+ ddg_edge_ptr e;
+
+ fprintf (file, "Node num: %d\n", g->nodes[i].cuid);
+ print_rtl_single (file, g->nodes[i].insn);
+ fprintf (file, "OUT ARCS: ");
+ for (e = g->nodes[i].out; e; e = e->next_out)
+ print_ddg_edge (file, e);
+
+ fprintf (file, "\nIN ARCS: ");
+ for (e = g->nodes[i].in; e; e = e->next_in)
+ print_ddg_edge (file, e);
+
+ fprintf (file, "\n");
+ }
+}
+
+/* Print the given DDG in VCG format. */
+DEBUG_FUNCTION void
+vcg_print_ddg (FILE *file, ddg_ptr g)
+{
+ int src_cuid;
+
+ fprintf (file, "graph: {\n");
+ for (src_cuid = 0; src_cuid < g->num_nodes; src_cuid++)
+ {
+ ddg_edge_ptr e;
+ int src_uid = INSN_UID (g->nodes[src_cuid].insn);
+
+ fprintf (file, "node: {title: \"%d_%d\" info1: \"", src_cuid, src_uid);
+ print_rtl_single (file, g->nodes[src_cuid].insn);
+ fprintf (file, "\"}\n");
+ for (e = g->nodes[src_cuid].out; e; e = e->next_out)
+ {
+ int dst_uid = INSN_UID (e->dest->insn);
+ int dst_cuid = e->dest->cuid;
+
+ /* Give the backarcs a different color. */
+ if (e->distance > 0)
+ fprintf (file, "backedge: {color: red ");
+ else
+ fprintf (file, "edge: { ");
+
+ fprintf (file, "sourcename: \"%d_%d\" ", src_cuid, src_uid);
+ fprintf (file, "targetname: \"%d_%d\" ", dst_cuid, dst_uid);
+ fprintf (file, "label: \"%d_%d\"}\n", e->latency, e->distance);
+ }
+ }
+ fprintf (file, "}\n");
+}
+
+/* Dump the sccs in SCCS. */
+void
+print_sccs (FILE *file, ddg_all_sccs_ptr sccs, ddg_ptr g)
+{
+ unsigned int u = 0;
+ sbitmap_iterator sbi;
+ int i;
+
+ if (!file)
+ return;
+
+ fprintf (file, "\n;; Number of SCC nodes - %d\n", sccs->num_sccs);
+ for (i = 0; i < sccs->num_sccs; i++)
+ {
+ fprintf (file, "SCC number: %d\n", i);
+ EXECUTE_IF_SET_IN_BITMAP (sccs->sccs[i]->nodes, 0, u, sbi)
+ {
+ fprintf (file, "insn num %d\n", u);
+ print_rtl_single (file, g->nodes[u].insn);
+ }
+ }
+ fprintf (file, "\n");
+}
+
+/* Create an edge and initialize it with given values. */
+static ddg_edge_ptr
+create_ddg_edge (ddg_node_ptr src, ddg_node_ptr dest,
+ dep_type t, dep_data_type dt, int l, int d)
+{
+ ddg_edge_ptr e = (ddg_edge_ptr) xmalloc (sizeof (struct ddg_edge));
+
+ e->src = src;
+ e->dest = dest;
+ e->type = t;
+ e->data_type = dt;
+ e->latency = l;
+ e->distance = d;
+ e->next_in = e->next_out = NULL;
+ e->in_scc = false;
+ return e;
+}
+
+/* Add the given edge to the in/out linked lists of the DDG nodes. */
+static void
+add_edge_to_ddg (ddg_ptr g ATTRIBUTE_UNUSED, ddg_edge_ptr e)
+{
+ ddg_node_ptr src = e->src;
+ ddg_node_ptr dest = e->dest;
+
+ /* Should have allocated the sbitmaps. */
+ gcc_assert (src->successors && dest->predecessors);
+
+ bitmap_set_bit (src->successors, dest->cuid);
+ bitmap_set_bit (dest->predecessors, src->cuid);
+ e->next_in = dest->in;
+ dest->in = e;
+ e->next_out = src->out;
+ src->out = e;
+}
+
+
+
+/* Algorithm for computing the recurrence_length of an scc. We assume at
+ for now that cycles in the data dependence graph contain a single backarc.
+ This simplifies the algorithm, and can be generalized later. */
+static void
+set_recurrence_length (ddg_scc_ptr scc)
+{
+ int j;
+ int result = -1;
+
+ for (j = 0; j < scc->num_backarcs; j++)
+ {
+ ddg_edge_ptr backarc = scc->backarcs[j];
+ int distance = backarc->distance;
+ ddg_node_ptr src = backarc->dest;
+ ddg_node_ptr dest = backarc->src;
+ int length = src->max_dist[dest->cuid];
+
+ if (length < 0)
+ continue;
+
+ length += backarc->latency;
+ result = MAX (result, (length / distance));
+ }
+ scc->recurrence_length = result;
+}
+
+/* Create a new SCC given the set of its nodes. Compute its recurrence_length
+ and mark edges that belong to this scc. */
+static ddg_scc_ptr
+create_scc (ddg_ptr g, sbitmap nodes, int id)
+{
+ ddg_scc_ptr scc;
+ unsigned int u = 0;
+ sbitmap_iterator sbi;
+
+ scc = (ddg_scc_ptr) xmalloc (sizeof (struct ddg_scc));
+ scc->backarcs = NULL;
+ scc->num_backarcs = 0;
+ scc->nodes = sbitmap_alloc (g->num_nodes);
+ bitmap_copy (scc->nodes, nodes);
+
+ /* Mark the backarcs that belong to this SCC. */
+ EXECUTE_IF_SET_IN_BITMAP (nodes, 0, u, sbi)
+ {
+ ddg_edge_ptr e;
+ ddg_node_ptr n = &g->nodes[u];
+
+ gcc_assert (n->aux.count == -1);
+ n->aux.count = id;
+
+ for (e = n->out; e; e = e->next_out)
+ if (bitmap_bit_p (nodes, e->dest->cuid))
+ {
+ e->in_scc = true;
+ if (e->distance > 0)
+ add_backarc_to_scc (scc, e);
+ }
+ }
+
+ return scc;
+}
+
+/* Cleans the memory allocation of a given SCC. */
+static void
+free_scc (ddg_scc_ptr scc)
+{
+ if (!scc)
+ return;
+
+ sbitmap_free (scc->nodes);
+ if (scc->num_backarcs > 0)
+ free (scc->backarcs);
+ free (scc);
+}
+
+
+/* Add a given edge known to be a backarc to the given DDG. */
+static void
+add_backarc_to_ddg (ddg_ptr g, ddg_edge_ptr e)
+{
+ int size = (g->num_backarcs + 1) * sizeof (ddg_edge_ptr);
+
+ add_edge_to_ddg (g, e);
+ g->backarcs = (ddg_edge_ptr *) xrealloc (g->backarcs, size);
+ g->backarcs[g->num_backarcs++] = e;
+}
+
+/* Add backarc to an SCC. */
+static void
+add_backarc_to_scc (ddg_scc_ptr scc, ddg_edge_ptr e)
+{
+ int size = (scc->num_backarcs + 1) * sizeof (ddg_edge_ptr);
+
+ scc->backarcs = (ddg_edge_ptr *) xrealloc (scc->backarcs, size);
+ scc->backarcs[scc->num_backarcs++] = e;
+}
+
+/* Add the given SCC to the DDG. */
+static void
+add_scc_to_ddg (ddg_all_sccs_ptr g, ddg_scc_ptr scc)
+{
+ int size = (g->num_sccs + 1) * sizeof (ddg_scc_ptr);
+
+ g->sccs = (ddg_scc_ptr *) xrealloc (g->sccs, size);
+ g->sccs[g->num_sccs++] = scc;
+}
+
+/* Given the instruction INSN return the node that represents it. */
+ddg_node_ptr
+get_node_of_insn (ddg_ptr g, rtx_insn *insn)
+{
+ int i;
+
+ for (i = 0; i < g->num_nodes; i++)
+ if (insn == g->nodes[i].insn)
+ return &g->nodes[i];
+ return NULL;
+}
+
+/* Given a set OPS of nodes in the DDG, find the set of their successors
+ which are not in OPS, and set their bits in SUCC. Bits corresponding to
+ OPS are cleared from SUCC. Leaves the other bits in SUCC unchanged. */
+void
+find_successors (sbitmap succ, ddg_ptr g, sbitmap ops)
+{
+ unsigned int i = 0;
+ sbitmap_iterator sbi;
+
+ EXECUTE_IF_SET_IN_BITMAP (ops, 0, i, sbi)
+ {
+ const sbitmap node_succ = NODE_SUCCESSORS (&g->nodes[i]);
+ bitmap_ior (succ, succ, node_succ);
+ };
+
+ /* We want those that are not in ops. */
+ bitmap_and_compl (succ, succ, ops);
+}
+
+/* Given a set OPS of nodes in the DDG, find the set of their predecessors
+ which are not in OPS, and set their bits in PREDS. Bits corresponding to
+ OPS are cleared from PREDS. Leaves the other bits in PREDS unchanged. */
+void
+find_predecessors (sbitmap preds, ddg_ptr g, sbitmap ops)
+{
+ unsigned int i = 0;
+ sbitmap_iterator sbi;
+
+ EXECUTE_IF_SET_IN_BITMAP (ops, 0, i, sbi)
+ {
+ const sbitmap node_preds = NODE_PREDECESSORS (&g->nodes[i]);
+ bitmap_ior (preds, preds, node_preds);
+ };
+
+ /* We want those that are not in ops. */
+ bitmap_and_compl (preds, preds, ops);
+}
+
+
+/* Compare function to be passed to qsort to order the backarcs in descending
+ recMII order. */
+static int
+compare_sccs (const void *s1, const void *s2)
+{
+ const int rec_l1 = (*(const ddg_scc_ptr *)s1)->recurrence_length;
+ const int rec_l2 = (*(const ddg_scc_ptr *)s2)->recurrence_length;
+ return ((rec_l2 > rec_l1) - (rec_l2 < rec_l1));
+
+}
+
+/* Order the backarcs in descending recMII order using compare_sccs. */
+static void
+order_sccs (ddg_all_sccs_ptr g)
+{
+ qsort (g->sccs, g->num_sccs, sizeof (ddg_scc_ptr),
+ (int (*) (const void *, const void *)) compare_sccs);
+}
+
+/* Check that every node in SCCS belongs to exactly one strongly connected
+ component and that no element of SCCS is empty. */
+static void
+check_sccs (ddg_all_sccs_ptr sccs, int num_nodes)
+{
+ int i = 0;
+ auto_sbitmap tmp (num_nodes);
+
+ bitmap_clear (tmp);
+ for (i = 0; i < sccs->num_sccs; i++)
+ {
+ gcc_assert (!bitmap_empty_p (sccs->sccs[i]->nodes));
+ /* Verify that every node in sccs is in exactly one strongly
+ connected component. */
+ gcc_assert (!bitmap_intersect_p (tmp, sccs->sccs[i]->nodes));
+ bitmap_ior (tmp, tmp, sccs->sccs[i]->nodes);
+ }
+}
+
+/* Perform the Strongly Connected Components decomposing algorithm on the
+ DDG and return DDG_ALL_SCCS structure that contains them. */
+ddg_all_sccs_ptr
+create_ddg_all_sccs (ddg_ptr g)
+{
+ int i, j, k, scc, way;
+ int num_nodes = g->num_nodes;
+ auto_sbitmap from (num_nodes);
+ auto_sbitmap to (num_nodes);
+ auto_sbitmap scc_nodes (num_nodes);
+ ddg_all_sccs_ptr sccs = (ddg_all_sccs_ptr)
+ xmalloc (sizeof (struct ddg_all_sccs));
+
+ sccs->ddg = g;
+ sccs->sccs = NULL;
+ sccs->num_sccs = 0;
+
+ for (i = 0; i < g->num_backarcs; i++)
+ {
+ ddg_scc_ptr scc;
+ ddg_edge_ptr backarc = g->backarcs[i];
+ ddg_node_ptr src = backarc->src;
+ ddg_node_ptr dest = backarc->dest;
+
+ /* If the backarc already belongs to an SCC, continue. */
+ if (backarc->in_scc)
+ continue;
+
+ bitmap_clear (scc_nodes);
+ bitmap_clear (from);
+ bitmap_clear (to);
+ bitmap_set_bit (from, dest->cuid);
+ bitmap_set_bit (to, src->cuid);
+
+ if (find_nodes_on_paths (scc_nodes, g, from, to))
+ {
+ scc = create_scc (g, scc_nodes, sccs->num_sccs);
+ add_scc_to_ddg (sccs, scc);
+ }
+ }
+
+ /* Init max_dist arrays for Floyd–Warshall-like
+ longest patch calculation algorithm. */
+ for (k = 0; k < num_nodes; k++)
+ {
+ ddg_edge_ptr e;
+ ddg_node_ptr n = &g->nodes[k];
+
+ if (n->aux.count == -1)
+ continue;
+
+ n->max_dist[k] = 0;
+ for (e = n->out; e; e = e->next_out)
+ if (e->distance == 0 && g->nodes[e->dest->cuid].aux.count == n->aux.count)
+ n->max_dist[e->dest->cuid] = e->latency;
+ }
+
+ /* Run main Floid-Warshall loop. We use only non-backarc edges
+ inside each scc. */
+ for (k = 0; k < num_nodes; k++)
+ {
+ scc = g->nodes[k].aux.count;
+ if (scc != -1)
+ {
+ for (i = 0; i < num_nodes; i++)
+ if (g->nodes[i].aux.count == scc)
+ for (j = 0; j < num_nodes; j++)
+ if (g->nodes[j].aux.count == scc
+ && g->nodes[i].max_dist[k] >= 0
+ && g->nodes[k].max_dist[j] >= 0)
+ {
+ way = g->nodes[i].max_dist[k] + g->nodes[k].max_dist[j];
+ if (g->nodes[i].max_dist[j] < way)
+ g->nodes[i].max_dist[j] = way;
+ }
+ }
+ }
+
+ /* Calculate recurrence_length using max_dist info. */
+ for (i = 0; i < sccs->num_sccs; i++)
+ set_recurrence_length (sccs->sccs[i]);
+
+ order_sccs (sccs);
+
+ if (flag_checking)
+ check_sccs (sccs, num_nodes);
+
+ return sccs;
+}
+
+/* Frees the memory allocated for all SCCs of the DDG, but keeps the DDG. */
+void
+free_ddg_all_sccs (ddg_all_sccs_ptr all_sccs)
+{
+ int i;
+
+ if (!all_sccs)
+ return;
+
+ for (i = 0; i < all_sccs->num_sccs; i++)
+ free_scc (all_sccs->sccs[i]);
+
+ free (all_sccs->sccs);
+ free (all_sccs);
+}
+
+
+/* Given FROM - a bitmap of source nodes - and TO - a bitmap of destination
+ nodes - find all nodes that lie on paths from FROM to TO (not excluding
+ nodes from FROM and TO). Return nonzero if nodes exist. */
+int
+find_nodes_on_paths (sbitmap result, ddg_ptr g, sbitmap from, sbitmap to)
+{
+ int change;
+ unsigned int u = 0;
+ int num_nodes = g->num_nodes;
+ sbitmap_iterator sbi;
+
+ auto_sbitmap workset (num_nodes);
+ auto_sbitmap reachable_from (num_nodes);
+ auto_sbitmap reach_to (num_nodes);
+ auto_sbitmap tmp (num_nodes);
+
+ bitmap_copy (reachable_from, from);
+ bitmap_copy (tmp, from);
+
+ change = 1;
+ while (change)
+ {
+ change = 0;
+ bitmap_copy (workset, tmp);
+ bitmap_clear (tmp);
+ EXECUTE_IF_SET_IN_BITMAP (workset, 0, u, sbi)
+ {
+ ddg_edge_ptr e;
+ ddg_node_ptr u_node = &g->nodes[u];
+
+ for (e = u_node->out; e != (ddg_edge_ptr) 0; e = e->next_out)
+ {
+ ddg_node_ptr v_node = e->dest;
+ int v = v_node->cuid;
+
+ if (!bitmap_bit_p (reachable_from, v))
+ {
+ bitmap_set_bit (reachable_from, v);
+ bitmap_set_bit (tmp, v);
+ change = 1;
+ }
+ }
+ }
+ }
+
+ bitmap_copy (reach_to, to);
+ bitmap_copy (tmp, to);
+
+ change = 1;
+ while (change)
+ {
+ change = 0;
+ bitmap_copy (workset, tmp);
+ bitmap_clear (tmp);
+ EXECUTE_IF_SET_IN_BITMAP (workset, 0, u, sbi)
+ {
+ ddg_edge_ptr e;
+ ddg_node_ptr u_node = &g->nodes[u];
+
+ for (e = u_node->in; e != (ddg_edge_ptr) 0; e = e->next_in)
+ {
+ ddg_node_ptr v_node = e->src;
+ int v = v_node->cuid;
+
+ if (!bitmap_bit_p (reach_to, v))
+ {
+ bitmap_set_bit (reach_to, v);
+ bitmap_set_bit (tmp, v);
+ change = 1;
+ }
+ }
+ }
+ }
+
+ return bitmap_and (result, reachable_from, reach_to);
+}
+
+#endif /* INSN_SCHEDULING */
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