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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/loop-doloop.c
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
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Rename .c files to .cc files.
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config/pru/pru.cc: ...here. * config/riscv/riscv-builtins.c: Moved to... * config/riscv/riscv-builtins.cc: ...here. * config/riscv/riscv-c.c: Moved to... * config/riscv/riscv-c.cc: ...here. * config/riscv/riscv-d.c: Moved to... * config/riscv/riscv-d.cc: ...here. * config/riscv/riscv-shorten-memrefs.c: Moved to... * config/riscv/riscv-shorten-memrefs.cc: ...here. * config/riscv/riscv-sr.c: Moved to... * config/riscv/riscv-sr.cc: ...here. * config/riscv/riscv.c: Moved to... * config/riscv/riscv.cc: ...here. * config/rl78/rl78-c.c: Moved to... * config/rl78/rl78-c.cc: ...here. * config/rl78/rl78.c: Moved to... * config/rl78/rl78.cc: ...here. * config/rs6000/driver-rs6000.c: Moved to... * config/rs6000/driver-rs6000.cc: ...here. * config/rs6000/host-darwin.c: Moved to... * config/rs6000/host-darwin.cc: ...here. * config/rs6000/host-ppc64-darwin.c: Moved to... * config/rs6000/host-ppc64-darwin.cc: ...here. * config/rs6000/rbtree.c: Moved to... * config/rs6000/rbtree.cc: ...here. * config/rs6000/rs6000-c.c: Moved to... * config/rs6000/rs6000-c.cc: ...here. * config/rs6000/rs6000-call.c: Moved to... * config/rs6000/rs6000-call.cc: ...here. * config/rs6000/rs6000-d.c: Moved to... * config/rs6000/rs6000-d.cc: ...here. * config/rs6000/rs6000-gen-builtins.c: Moved to... * config/rs6000/rs6000-gen-builtins.cc: ...here. * config/rs6000/rs6000-linux.c: Moved to... * config/rs6000/rs6000-linux.cc: ...here. * config/rs6000/rs6000-logue.c: Moved to... * config/rs6000/rs6000-logue.cc: ...here. * config/rs6000/rs6000-p8swap.c: Moved to... * config/rs6000/rs6000-p8swap.cc: ...here. * config/rs6000/rs6000-pcrel-opt.c: Moved to... * config/rs6000/rs6000-pcrel-opt.cc: ...here. * config/rs6000/rs6000-string.c: Moved to... * config/rs6000/rs6000-string.cc: ...here. * config/rs6000/rs6000.c: Moved to... * config/rs6000/rs6000.cc: ...here. * config/rx/rx.c: Moved to... * config/rx/rx.cc: ...here. * config/s390/driver-native.c: Moved to... * config/s390/driver-native.cc: ...here. * config/s390/s390-c.c: Moved to... * config/s390/s390-c.cc: ...here. * config/s390/s390-d.c: Moved to... * config/s390/s390-d.cc: ...here. * config/s390/s390.c: Moved to... * config/s390/s390.cc: ...here. * config/sh/divtab-sh4-300.c: Moved to... * config/sh/divtab-sh4-300.cc: ...here. * config/sh/divtab-sh4.c: Moved to... * config/sh/divtab-sh4.cc: ...here. * config/sh/divtab.c: Moved to... * config/sh/divtab.cc: ...here. * config/sh/sh-c.c: Moved to... * config/sh/sh-c.cc: ...here. * config/sh/sh.c: Moved to... * config/sh/sh.cc: ...here. * config/sol2-c.c: Moved to... * config/sol2-c.cc: ...here. * config/sol2-cxx.c: Moved to... * config/sol2-cxx.cc: ...here. * config/sol2-d.c: Moved to... * config/sol2-d.cc: ...here. * config/sol2-stubs.c: Moved to... * config/sol2-stubs.cc: ...here. * config/sol2.c: Moved to... * config/sol2.cc: ...here. * config/sparc/driver-sparc.c: Moved to... * config/sparc/driver-sparc.cc: ...here. * config/sparc/sparc-c.c: Moved to... * config/sparc/sparc-c.cc: ...here. * config/sparc/sparc-d.c: Moved to... * config/sparc/sparc-d.cc: ...here. * config/sparc/sparc.c: Moved to... * config/sparc/sparc.cc: ...here. * config/stormy16/stormy16.c: Moved to... * config/stormy16/stormy16.cc: ...here. * config/tilegx/mul-tables.c: Moved to... * config/tilegx/mul-tables.cc: ...here. * config/tilegx/tilegx-c.c: Moved to... * config/tilegx/tilegx-c.cc: ...here. * config/tilegx/tilegx.c: Moved to... * config/tilegx/tilegx.cc: ...here. * config/tilepro/mul-tables.c: Moved to... * config/tilepro/mul-tables.cc: ...here. * config/tilepro/tilepro-c.c: Moved to... * config/tilepro/tilepro-c.cc: ...here. * config/tilepro/tilepro.c: Moved to... * config/tilepro/tilepro.cc: ...here. * config/v850/v850-c.c: Moved to... * config/v850/v850-c.cc: ...here. * config/v850/v850.c: Moved to... * config/v850/v850.cc: ...here. * config/vax/vax.c: Moved to... * config/vax/vax.cc: ...here. * config/visium/visium.c: Moved to... * config/visium/visium.cc: ...here. * config/vms/vms-c.c: Moved to... * config/vms/vms-c.cc: ...here. * config/vms/vms-f.c: Moved to... * config/vms/vms-f.cc: ...here. * config/vms/vms.c: Moved to... * config/vms/vms.cc: ...here. * config/vxworks-c.c: Moved to... * config/vxworks-c.cc: ...here. * config/vxworks.c: Moved to... * config/vxworks.cc: ...here. * config/winnt-c.c: Moved to... * config/winnt-c.cc: ...here. * config/xtensa/xtensa.c: Moved to... * config/xtensa/xtensa.cc: ...here. * context.c: Moved to... * context.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * coverage.c: Moved to... * coverage.cc: ...here. * cppbuiltin.c: Moved to... * cppbuiltin.cc: ...here. * cppdefault.c: Moved to... * cppdefault.cc: ...here. * cprop.c: Moved to... * cprop.cc: ...here. * cse.c: Moved to... * cse.cc: ...here. * cselib.c: Moved to... * cselib.cc: ...here. * ctfc.c: Moved to... * ctfc.cc: ...here. * ctfout.c: Moved to... * ctfout.cc: ...here. * data-streamer-in.c: Moved to... * data-streamer-in.cc: ...here. * data-streamer-out.c: Moved to... * data-streamer-out.cc: ...here. * data-streamer.c: Moved to... * data-streamer.cc: ...here. * dbgcnt.c: Moved to... * dbgcnt.cc: ...here. * dbxout.c: Moved to... * dbxout.cc: ...here. * dce.c: Moved to... * dce.cc: ...here. * ddg.c: Moved to... * ddg.cc: ...here. * debug.c: Moved to... * debug.cc: ...here. * df-core.c: Moved to... * df-core.cc: ...here. * df-problems.c: Moved to... * df-problems.cc: ...here. * df-scan.c: Moved to... * df-scan.cc: ...here. * dfp.c: Moved to... * dfp.cc: ...here. * diagnostic-color.c: Moved to... * diagnostic-color.cc: ...here. * diagnostic-show-locus.c: Moved to... * diagnostic-show-locus.cc: ...here. * diagnostic-spec.c: Moved to... * diagnostic-spec.cc: ...here. * diagnostic.c: Moved to... * diagnostic.cc: ...here. * dojump.c: Moved to... * dojump.cc: ...here. * dominance.c: Moved to... * dominance.cc: ...here. * domwalk.c: Moved to... * domwalk.cc: ...here. * double-int.c: Moved to... * double-int.cc: ...here. * dse.c: Moved to... * dse.cc: ...here. * dumpfile.c: Moved to... * dumpfile.cc: ...here. * dwarf2asm.c: Moved to... * dwarf2asm.cc: ...here. * dwarf2cfi.c: Moved to... * dwarf2cfi.cc: ...here. * dwarf2ctf.c: Moved to... * dwarf2ctf.cc: ...here. * dwarf2out.c: Moved to... * dwarf2out.cc: ...here. * early-remat.c: Moved to... * early-remat.cc: ...here. * edit-context.c: Moved to... * edit-context.cc: ...here. * emit-rtl.c: Moved to... * emit-rtl.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * et-forest.c: Moved to... * et-forest.cc: ...here. * except.c: Moved to... * except.cc: ...here. * explow.c: Moved to... * explow.cc: ...here. * expmed.c: Moved to... * expmed.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * fibonacci_heap.c: Moved to... * fibonacci_heap.cc: ...here. * file-find.c: Moved to... * file-find.cc: ...here. * file-prefix-map.c: Moved to... * file-prefix-map.cc: ...here. * final.c: Moved to... * final.cc: ...here. * fixed-value.c: Moved to... * fixed-value.cc: ...here. * fold-const-call.c: Moved to... * fold-const-call.cc: ...here. * fold-const.c: Moved to... * fold-const.cc: ...here. * fp-test.c: Moved to... * fp-test.cc: ...here. * function-tests.c: Moved to... * function-tests.cc: ...here. * function.c: Moved to... * function.cc: ...here. * fwprop.c: Moved to... * fwprop.cc: ...here. * gcc-ar.c: Moved to... * gcc-ar.cc: ...here. * gcc-main.c: Moved to... * gcc-main.cc: ...here. * gcc-rich-location.c: Moved to... * gcc-rich-location.cc: ...here. * gcc.c: Moved to... * gcc.cc: ...here. * gcov-dump.c: Moved to... * gcov-dump.cc: ...here. * gcov-io.c: Moved to... * gcov-io.cc: ...here. * gcov-tool.c: Moved to... * gcov-tool.cc: ...here. * gcov.c: Moved to... * gcov.cc: ...here. * gcse-common.c: Moved to... * gcse-common.cc: ...here. * gcse.c: Moved to... * gcse.cc: ...here. * genattr-common.c: Moved to... * genattr-common.cc: ...here. * genattr.c: Moved to... * genattr.cc: ...here. * genattrtab.c: Moved to... * genattrtab.cc: ...here. * genautomata.c: Moved to... * genautomata.cc: ...here. * gencfn-macros.c: Moved to... * gencfn-macros.cc: ...here. * gencheck.c: Moved to... * gencheck.cc: ...here. * genchecksum.c: Moved to... * genchecksum.cc: ...here. * gencodes.c: Moved to... * gencodes.cc: ...here. * genconditions.c: Moved to... * genconditions.cc: ...here. * genconfig.c: Moved to... * genconfig.cc: ...here. * genconstants.c: Moved to... * genconstants.cc: ...here. * genemit.c: Moved to... * genemit.cc: ...here. * genenums.c: Moved to... * genenums.cc: ...here. * generic-match-head.c: Moved to... * generic-match-head.cc: ...here. * genextract.c: Moved to... * genextract.cc: ...here. * genflags.c: Moved to... * genflags.cc: ...here. * gengenrtl.c: Moved to... * gengenrtl.cc: ...here. * gengtype-parse.c: Moved to... * gengtype-parse.cc: ...here. * gengtype-state.c: Moved to... * gengtype-state.cc: ...here. * gengtype.c: Moved to... * gengtype.cc: ...here. * genhooks.c: Moved to... * genhooks.cc: ...here. * genmatch.c: Moved to... * genmatch.cc: ...here. * genmddeps.c: Moved to... * genmddeps.cc: ...here. * genmddump.c: Moved to... * genmddump.cc: ...here. * genmodes.c: Moved to... * genmodes.cc: ...here. * genopinit.c: Moved to... * genopinit.cc: ...here. * genoutput.c: Moved to... * genoutput.cc: ...here. * genpeep.c: Moved to... * genpeep.cc: ...here. * genpreds.c: Moved to... * genpreds.cc: ...here. * genrecog.c: Moved to... * genrecog.cc: ...here. * gensupport.c: Moved to... * gensupport.cc: ...here. * gentarget-def.c: Moved to... * gentarget-def.cc: ...here. * genversion.c: Moved to... * genversion.cc: ...here. * ggc-common.c: Moved to... * ggc-common.cc: ...here. * ggc-none.c: Moved to... * ggc-none.cc: ...here. * ggc-page.c: Moved to... * ggc-page.cc: ...here. * ggc-tests.c: Moved to... * ggc-tests.cc: ...here. * gimple-builder.c: Moved to... * gimple-builder.cc: ...here. * gimple-expr.c: Moved to... * gimple-expr.cc: ...here. * gimple-fold.c: Moved to... * gimple-fold.cc: ...here. * gimple-iterator.c: Moved to... * gimple-iterator.cc: ...here. * gimple-laddress.c: Moved to... * gimple-laddress.cc: ...here. * gimple-loop-jam.c: Moved to... * gimple-loop-jam.cc: ...here. * gimple-low.c: Moved to... * gimple-low.cc: ...here. * gimple-match-head.c: Moved to... * gimple-match-head.cc: ...here. * gimple-pretty-print.c: Moved to... * gimple-pretty-print.cc: ...here. * gimple-ssa-backprop.c: Moved to... * gimple-ssa-backprop.cc: ...here. * gimple-ssa-evrp-analyze.c: Moved to... * gimple-ssa-evrp-analyze.cc: ...here. * gimple-ssa-evrp.c: Moved to... * gimple-ssa-evrp.cc: ...here. * gimple-ssa-isolate-paths.c: Moved to... * gimple-ssa-isolate-paths.cc: ...here. * gimple-ssa-nonnull-compare.c: Moved to... * gimple-ssa-nonnull-compare.cc: ...here. * gimple-ssa-split-paths.c: Moved to... * gimple-ssa-split-paths.cc: ...here. * gimple-ssa-sprintf.c: Moved to... * gimple-ssa-sprintf.cc: ...here. * gimple-ssa-store-merging.c: Moved to... * gimple-ssa-store-merging.cc: ...here. * gimple-ssa-strength-reduction.c: Moved to... * gimple-ssa-strength-reduction.cc: ...here. * gimple-ssa-warn-alloca.c: Moved to... * gimple-ssa-warn-alloca.cc: ...here. * gimple-ssa-warn-restrict.c: Moved to... * gimple-ssa-warn-restrict.cc: ...here. * gimple-streamer-in.c: Moved to... * gimple-streamer-in.cc: ...here. * gimple-streamer-out.c: Moved to... * gimple-streamer-out.cc: ...here. * gimple-walk.c: Moved to... * gimple-walk.cc: ...here. * gimple-warn-recursion.c: Moved to... * gimple-warn-recursion.cc: ...here. * gimple.c: Moved to... * gimple.cc: ...here. * gimplify-me.c: Moved to... * gimplify-me.cc: ...here. * gimplify.c: Moved to... * gimplify.cc: ...here. * godump.c: Moved to... * godump.cc: ...here. * graph.c: Moved to... * graph.cc: ...here. * graphds.c: Moved to... * graphds.cc: ...here. * graphite-dependences.c: Moved to... * graphite-dependences.cc: ...here. * graphite-isl-ast-to-gimple.c: Moved to... * graphite-isl-ast-to-gimple.cc: ...here. * graphite-optimize-isl.c: Moved to... * graphite-optimize-isl.cc: ...here. * graphite-poly.c: Moved to... * graphite-poly.cc: ...here. * graphite-scop-detection.c: Moved to... * graphite-scop-detection.cc: ...here. * graphite-sese-to-poly.c: Moved to... * graphite-sese-to-poly.cc: ...here. * graphite.c: Moved to... * graphite.cc: ...here. * haifa-sched.c: Moved to... * haifa-sched.cc: ...here. * hash-map-tests.c: Moved to... * hash-map-tests.cc: ...here. * hash-set-tests.c: Moved to... * hash-set-tests.cc: ...here. * hash-table.c: Moved to... * hash-table.cc: ...here. * hooks.c: Moved to... * hooks.cc: ...here. * host-default.c: Moved to... * host-default.cc: ...here. * hw-doloop.c: Moved to... * hw-doloop.cc: ...here. * hwint.c: Moved to... * hwint.cc: ...here. * ifcvt.c: Moved to... * ifcvt.cc: ...here. * inchash.c: Moved to... * inchash.cc: ...here. * incpath.c: Moved to... * incpath.cc: ...here. * init-regs.c: Moved to... * init-regs.cc: ...here. * input.c: Moved to... * input.cc: ...here. * internal-fn.c: Moved to... * internal-fn.cc: ...here. * intl.c: Moved to... * intl.cc: ...here. * ipa-comdats.c: Moved to... * ipa-comdats.cc: ...here. * ipa-cp.c: Moved to... * ipa-cp.cc: ...here. * ipa-devirt.c: Moved to... * ipa-devirt.cc: ...here. * ipa-fnsummary.c: Moved to... * ipa-fnsummary.cc: ...here. * ipa-icf-gimple.c: Moved to... * ipa-icf-gimple.cc: ...here. * ipa-icf.c: Moved to... * ipa-icf.cc: ...here. * ipa-inline-analysis.c: Moved to... * ipa-inline-analysis.cc: ...here. * ipa-inline-transform.c: Moved to... * ipa-inline-transform.cc: ...here. * ipa-inline.c: Moved to... * ipa-inline.cc: ...here. * ipa-modref-tree.c: Moved to... * ipa-modref-tree.cc: ...here. * ipa-modref.c: Moved to... * ipa-modref.cc: ...here. * ipa-param-manipulation.c: Moved to... * ipa-param-manipulation.cc: ...here. * ipa-polymorphic-call.c: Moved to... * ipa-polymorphic-call.cc: ...here. * ipa-predicate.c: Moved to... * ipa-predicate.cc: ...here. * ipa-profile.c: Moved to... * ipa-profile.cc: ...here. * ipa-prop.c: Moved to... * ipa-prop.cc: ...here. * ipa-pure-const.c: Moved to... * ipa-pure-const.cc: ...here. * ipa-ref.c: Moved to... * ipa-ref.cc: ...here. * ipa-reference.c: Moved to... * ipa-reference.cc: ...here. * ipa-split.c: Moved to... * ipa-split.cc: ...here. * ipa-sra.c: Moved to... * ipa-sra.cc: ...here. * ipa-utils.c: Moved to... * ipa-utils.cc: ...here. * ipa-visibility.c: Moved to... * ipa-visibility.cc: ...here. * ipa.c: Moved to... * ipa.cc: ...here. * ira-build.c: Moved to... * ira-build.cc: ...here. * ira-color.c: Moved to... * ira-color.cc: ...here. * ira-conflicts.c: Moved to... * ira-conflicts.cc: ...here. * ira-costs.c: Moved to... * ira-costs.cc: ...here. * ira-emit.c: Moved to... * ira-emit.cc: ...here. * ira-lives.c: Moved to... * ira-lives.cc: ...here. * ira.c: Moved to... * ira.cc: ...here. * jump.c: Moved to... * jump.cc: ...here. * langhooks.c: Moved to... * langhooks.cc: ...here. * lcm.c: Moved to... * lcm.cc: ...here. * lists.c: Moved to... * lists.cc: ...here. * loop-doloop.c: Moved to... * loop-doloop.cc: ...here. * loop-init.c: Moved to... * loop-init.cc: ...here. * loop-invariant.c: Moved to... * loop-invariant.cc: ...here. * loop-iv.c: Moved to... * loop-iv.cc: ...here. * loop-unroll.c: Moved to... * loop-unroll.cc: ...here. * lower-subreg.c: Moved to... * lower-subreg.cc: ...here. * lra-assigns.c: Moved to... * lra-assigns.cc: ...here. * lra-coalesce.c: Moved to... * lra-coalesce.cc: ...here. * lra-constraints.c: Moved to... * lra-constraints.cc: ...here. * lra-eliminations.c: Moved to... * lra-eliminations.cc: ...here. * lra-lives.c: Moved to... * lra-lives.cc: ...here. * lra-remat.c: Moved to... * lra-remat.cc: ...here. * lra-spills.c: Moved to... * lra-spills.cc: ...here. * lra.c: Moved to... * lra.cc: ...here. * lto-cgraph.c: Moved to... * lto-cgraph.cc: ...here. * lto-compress.c: Moved to... * lto-compress.cc: ...here. * lto-opts.c: Moved to... * lto-opts.cc: ...here. * lto-section-in.c: Moved to... * lto-section-in.cc: ...here. * lto-section-out.c: Moved to... * lto-section-out.cc: ...here. * lto-streamer-in.c: Moved to... * lto-streamer-in.cc: ...here. * lto-streamer-out.c: Moved to... * lto-streamer-out.cc: ...here. * lto-streamer.c: Moved to... * lto-streamer.cc: ...here. * lto-wrapper.c: Moved to... * lto-wrapper.cc: ...here. * main.c: Moved to... * main.cc: ...here. * mcf.c: Moved to... * mcf.cc: ...here. * mode-switching.c: Moved to... * mode-switching.cc: ...here. * modulo-sched.c: Moved to... * modulo-sched.cc: ...here. * multiple_target.c: Moved to... * multiple_target.cc: ...here. * omp-expand.c: Moved to... * omp-expand.cc: ...here. * omp-general.c: Moved to... * omp-general.cc: ...here. * omp-low.c: Moved to... * omp-low.cc: ...here. * omp-offload.c: Moved to... * omp-offload.cc: ...here. * omp-simd-clone.c: Moved to... * omp-simd-clone.cc: ...here. * opt-suggestions.c: Moved to... * opt-suggestions.cc: ...here. * optabs-libfuncs.c: Moved to... * optabs-libfuncs.cc: ...here. * optabs-query.c: Moved to... * optabs-query.cc: ...here. * optabs-tree.c: Moved to... * optabs-tree.cc: ...here. * optabs.c: Moved to... * optabs.cc: ...here. * opts-common.c: Moved to... * opts-common.cc: ...here. * opts-global.c: Moved to... * opts-global.cc: ...here. * opts.c: Moved to... * opts.cc: ...here. * passes.c: Moved to... * passes.cc: ...here. * plugin.c: Moved to... * plugin.cc: ...here. * postreload-gcse.c: Moved to... * postreload-gcse.cc: ...here. * postreload.c: Moved to... * postreload.cc: ...here. * predict.c: Moved to... * predict.cc: ...here. * prefix.c: Moved to... * prefix.cc: ...here. * pretty-print.c: Moved to... * pretty-print.cc: ...here. * print-rtl-function.c: Moved to... * print-rtl-function.cc: ...here. * print-rtl.c: Moved to... * print-rtl.cc: ...here. * print-tree.c: Moved to... * print-tree.cc: ...here. * profile-count.c: Moved to... * profile-count.cc: ...here. * profile.c: Moved to... * profile.cc: ...here. * read-md.c: Moved to... * read-md.cc: ...here. * read-rtl-function.c: Moved to... * read-rtl-function.cc: ...here. * read-rtl.c: Moved to... * read-rtl.cc: ...here. * real.c: Moved to... * real.cc: ...here. * realmpfr.c: Moved to... * realmpfr.cc: ...here. * recog.c: Moved to... * recog.cc: ...here. * ree.c: Moved to... * ree.cc: ...here. * reg-stack.c: Moved to... * reg-stack.cc: ...here. * regcprop.c: Moved to... * regcprop.cc: ...here. * reginfo.c: Moved to... * reginfo.cc: ...here. * regrename.c: Moved to... * regrename.cc: ...here. * regstat.c: Moved to... * regstat.cc: ...here. * reload.c: Moved to... * reload.cc: ...here. * reload1.c: Moved to... * reload1.cc: ...here. * reorg.c: Moved to... * reorg.cc: ...here. * resource.c: Moved to... * resource.cc: ...here. * rtl-error.c: Moved to... * rtl-error.cc: ...here. * rtl-tests.c: Moved to... * rtl-tests.cc: ...here. * rtl.c: Moved to... * rtl.cc: ...here. * rtlanal.c: Moved to... * rtlanal.cc: ...here. * rtlhash.c: Moved to... * rtlhash.cc: ...here. * rtlhooks.c: Moved to... * rtlhooks.cc: ...here. * rtx-vector-builder.c: Moved to... * rtx-vector-builder.cc: ...here. * run-rtl-passes.c: Moved to... * run-rtl-passes.cc: ...here. * sancov.c: Moved to... * sancov.cc: ...here. * sanopt.c: Moved to... * sanopt.cc: ...here. * sbitmap.c: Moved to... * sbitmap.cc: ...here. * sched-deps.c: Moved to... * sched-deps.cc: ...here. * sched-ebb.c: Moved to... * sched-ebb.cc: ...here. * sched-rgn.c: Moved to... * sched-rgn.cc: ...here. * sel-sched-dump.c: Moved to... * sel-sched-dump.cc: ...here. * sel-sched-ir.c: Moved to... * sel-sched-ir.cc: ...here. * sel-sched.c: Moved to... * sel-sched.cc: ...here. * selftest-diagnostic.c: Moved to... * selftest-diagnostic.cc: ...here. * selftest-rtl.c: Moved to... * selftest-rtl.cc: ...here. * selftest-run-tests.c: Moved to... * selftest-run-tests.cc: ...here. * selftest.c: Moved to... * selftest.cc: ...here. * sese.c: Moved to... * sese.cc: ...here. * shrink-wrap.c: Moved to... * shrink-wrap.cc: ...here. * simplify-rtx.c: Moved to... * simplify-rtx.cc: ...here. * sparseset.c: Moved to... * sparseset.cc: ...here. * spellcheck-tree.c: Moved to... * spellcheck-tree.cc: ...here. * spellcheck.c: Moved to... * spellcheck.cc: ...here. * sreal.c: Moved to... * sreal.cc: ...here. * stack-ptr-mod.c: Moved to... * stack-ptr-mod.cc: ...here. * statistics.c: Moved to... * statistics.cc: ...here. * stmt.c: Moved to... * stmt.cc: ...here. * stor-layout.c: Moved to... * stor-layout.cc: ...here. * store-motion.c: Moved to... * store-motion.cc: ...here. * streamer-hooks.c: Moved to... * streamer-hooks.cc: ...here. * stringpool.c: Moved to... * stringpool.cc: ...here. * substring-locations.c: Moved to... * substring-locations.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * target-globals.c: Moved to... * target-globals.cc: ...here. * targhooks.c: Moved to... * targhooks.cc: ...here. * timevar.c: Moved to... * timevar.cc: ...here. * toplev.c: Moved to... * toplev.cc: ...here. * tracer.c: Moved to... * tracer.cc: ...here. * trans-mem.c: Moved to... * trans-mem.cc: ...here. * tree-affine.c: Moved to... * tree-affine.cc: ...here. * tree-call-cdce.c: Moved to... * tree-call-cdce.cc: ...here. * tree-cfg.c: Moved to... * tree-cfg.cc: ...here. * tree-cfgcleanup.c: Moved to... * tree-cfgcleanup.cc: ...here. * tree-chrec.c: Moved to... * tree-chrec.cc: ...here. * tree-complex.c: Moved to... * tree-complex.cc: ...here. * tree-data-ref.c: Moved to... * tree-data-ref.cc: ...here. * tree-dfa.c: Moved to... * tree-dfa.cc: ...here. * tree-diagnostic.c: Moved to... * tree-diagnostic.cc: ...here. * tree-dump.c: Moved to... * tree-dump.cc: ...here. * tree-eh.c: Moved to... * tree-eh.cc: ...here. * tree-emutls.c: Moved to... * tree-emutls.cc: ...here. * tree-if-conv.c: Moved to... * tree-if-conv.cc: ...here. * tree-inline.c: Moved to... * tree-inline.cc: ...here. * tree-into-ssa.c: Moved to... * tree-into-ssa.cc: ...here. * tree-iterator.c: Moved to... * tree-iterator.cc: ...here. * tree-loop-distribution.c: Moved to... * tree-loop-distribution.cc: ...here. * tree-nested.c: Moved to... * tree-nested.cc: ...here. * tree-nrv.c: Moved to... * tree-nrv.cc: ...here. * tree-object-size.c: Moved to... * tree-object-size.cc: ...here. * tree-outof-ssa.c: Moved to... * tree-outof-ssa.cc: ...here. * tree-parloops.c: Moved to... * tree-parloops.cc: ...here. * tree-phinodes.c: Moved to... * tree-phinodes.cc: ...here. * tree-predcom.c: Moved to... * tree-predcom.cc: ...here. * tree-pretty-print.c: Moved to... * tree-pretty-print.cc: ...here. * tree-profile.c: Moved to... * tree-profile.cc: ...here. * tree-scalar-evolution.c: Moved to... * tree-scalar-evolution.cc: ...here. * tree-sra.c: Moved to... * tree-sra.cc: ...here. * tree-ssa-address.c: Moved to... * tree-ssa-address.cc: ...here. * tree-ssa-alias.c: Moved to... * tree-ssa-alias.cc: ...here. * tree-ssa-ccp.c: Moved to... * tree-ssa-ccp.cc: ...here. * tree-ssa-coalesce.c: Moved to... * tree-ssa-coalesce.cc: ...here. * tree-ssa-copy.c: Moved to... * tree-ssa-copy.cc: ...here. * tree-ssa-dce.c: Moved to... * tree-ssa-dce.cc: ...here. * tree-ssa-dom.c: Moved to... * tree-ssa-dom.cc: ...here. * tree-ssa-dse.c: Moved to... * tree-ssa-dse.cc: ...here. * tree-ssa-forwprop.c: Moved to... * tree-ssa-forwprop.cc: ...here. * tree-ssa-ifcombine.c: Moved to... * tree-ssa-ifcombine.cc: ...here. * tree-ssa-live.c: Moved to... * tree-ssa-live.cc: ...here. * tree-ssa-loop-ch.c: Moved to... * tree-ssa-loop-ch.cc: ...here. * tree-ssa-loop-im.c: Moved to... * tree-ssa-loop-im.cc: ...here. * tree-ssa-loop-ivcanon.c: Moved to... * tree-ssa-loop-ivcanon.cc: ...here. * tree-ssa-loop-ivopts.c: Moved to... * tree-ssa-loop-ivopts.cc: ...here. * tree-ssa-loop-manip.c: Moved to... * tree-ssa-loop-manip.cc: ...here. * tree-ssa-loop-niter.c: Moved to... * tree-ssa-loop-niter.cc: ...here. * tree-ssa-loop-prefetch.c: Moved to... * tree-ssa-loop-prefetch.cc: ...here. * tree-ssa-loop-split.c: Moved to... * tree-ssa-loop-split.cc: ...here. * tree-ssa-loop-unswitch.c: Moved to... * tree-ssa-loop-unswitch.cc: ...here. * tree-ssa-loop.c: Moved to... * tree-ssa-loop.cc: ...here. * tree-ssa-math-opts.c: Moved to... * tree-ssa-math-opts.cc: ...here. * tree-ssa-operands.c: Moved to... * tree-ssa-operands.cc: ...here. * tree-ssa-phiopt.c: Moved to... * tree-ssa-phiopt.cc: ...here. * tree-ssa-phiprop.c: Moved to... * tree-ssa-phiprop.cc: ...here. * tree-ssa-pre.c: Moved to... * tree-ssa-pre.cc: ...here. * tree-ssa-propagate.c: Moved to... * tree-ssa-propagate.cc: ...here. * tree-ssa-reassoc.c: Moved to... * tree-ssa-reassoc.cc: ...here. * tree-ssa-sccvn.c: Moved to... * tree-ssa-sccvn.cc: ...here. * tree-ssa-scopedtables.c: Moved to... * tree-ssa-scopedtables.cc: ...here. * tree-ssa-sink.c: Moved to... * tree-ssa-sink.cc: ...here. * tree-ssa-strlen.c: Moved to... * tree-ssa-strlen.cc: ...here. * tree-ssa-structalias.c: Moved to... * tree-ssa-structalias.cc: ...here. * tree-ssa-tail-merge.c: Moved to... * tree-ssa-tail-merge.cc: ...here. * tree-ssa-ter.c: Moved to... * tree-ssa-ter.cc: ...here. * tree-ssa-threadbackward.c: Moved to... * tree-ssa-threadbackward.cc: ...here. * tree-ssa-threadedge.c: Moved to... * tree-ssa-threadedge.cc: ...here. * tree-ssa-threadupdate.c: Moved to... * tree-ssa-threadupdate.cc: ...here. * tree-ssa-uncprop.c: Moved to... * tree-ssa-uncprop.cc: ...here. * tree-ssa-uninit.c: Moved to... * tree-ssa-uninit.cc: ...here. * tree-ssa.c: Moved to... * tree-ssa.cc: ...here. * tree-ssanames.c: Moved to... * tree-ssanames.cc: ...here. * tree-stdarg.c: Moved to... * tree-stdarg.cc: ...here. * tree-streamer-in.c: Moved to... * tree-streamer-in.cc: ...here. * tree-streamer-out.c: Moved to... * tree-streamer-out.cc: ...here. * tree-streamer.c: Moved to... * tree-streamer.cc: ...here. * tree-switch-conversion.c: Moved to... * tree-switch-conversion.cc: ...here. * tree-tailcall.c: Moved to... * tree-tailcall.cc: ...here. * tree-vect-data-refs.c: Moved to... * tree-vect-data-refs.cc: ...here. * tree-vect-generic.c: Moved to... * tree-vect-generic.cc: ...here. * tree-vect-loop-manip.c: Moved to... * tree-vect-loop-manip.cc: ...here. * tree-vect-loop.c: Moved to... * tree-vect-loop.cc: ...here. * tree-vect-patterns.c: Moved to... * tree-vect-patterns.cc: ...here. * tree-vect-slp-patterns.c: Moved to... * tree-vect-slp-patterns.cc: ...here. * tree-vect-slp.c: Moved to... * tree-vect-slp.cc: ...here. * tree-vect-stmts.c: Moved to... * tree-vect-stmts.cc: ...here. * tree-vector-builder.c: Moved to... * tree-vector-builder.cc: ...here. * tree-vectorizer.c: Moved to... * tree-vectorizer.cc: ...here. * tree-vrp.c: Moved to... * tree-vrp.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * tsan.c: Moved to... * tsan.cc: ...here. * typed-splay-tree.c: Moved to... * typed-splay-tree.cc: ...here. * ubsan.c: Moved to... * ubsan.cc: ...here. * valtrack.c: Moved to... * valtrack.cc: ...here. * value-prof.c: Moved to... * value-prof.cc: ...here. * var-tracking.c: Moved to... * var-tracking.cc: ...here. * varasm.c: Moved to... * varasm.cc: ...here. * varpool.c: Moved to... * varpool.cc: ...here. * vec-perm-indices.c: Moved to... * vec-perm-indices.cc: ...here. * vec.c: Moved to... * vec.cc: ...here. * vmsdbgout.c: Moved to... * vmsdbgout.cc: ...here. * vr-values.c: Moved to... * vr-values.cc: ...here. * vtable-verify.c: Moved to... * vtable-verify.cc: ...here. * web.c: Moved to... * web.cc: ...here. * xcoffout.c: Moved to... * xcoffout.cc: ...here. gcc/c-family/ChangeLog: * c-ada-spec.c: Moved to... * c-ada-spec.cc: ...here. * c-attribs.c: Moved to... * c-attribs.cc: ...here. * c-common.c: Moved to... * c-common.cc: ...here. * c-cppbuiltin.c: Moved to... * c-cppbuiltin.cc: ...here. * c-dump.c: Moved to... * c-dump.cc: ...here. * c-format.c: Moved to... * c-format.cc: ...here. * c-gimplify.c: Moved to... * c-gimplify.cc: ...here. * c-indentation.c: Moved to... * c-indentation.cc: ...here. * c-lex.c: Moved to... * c-lex.cc: ...here. * c-omp.c: Moved to... * c-omp.cc: ...here. * c-opts.c: Moved to... * c-opts.cc: ...here. * c-pch.c: Moved to... * c-pch.cc: ...here. * c-ppoutput.c: Moved to... * c-ppoutput.cc: ...here. * c-pragma.c: Moved to... * c-pragma.cc: ...here. * c-pretty-print.c: Moved to... * c-pretty-print.cc: ...here. * c-semantics.c: Moved to... * c-semantics.cc: ...here. * c-ubsan.c: Moved to... * c-ubsan.cc: ...here. * c-warn.c: Moved to... * c-warn.cc: ...here. * cppspec.c: Moved to... * cppspec.cc: ...here. * stub-objc.c: Moved to... * stub-objc.cc: ...here. gcc/c/ChangeLog: * c-aux-info.c: Moved to... * c-aux-info.cc: ...here. * c-convert.c: Moved to... * c-convert.cc: ...here. * c-decl.c: Moved to... * c-decl.cc: ...here. * c-errors.c: Moved to... * c-errors.cc: ...here. * c-fold.c: Moved to... * c-fold.cc: ...here. * c-lang.c: Moved to... * c-lang.cc: ...here. * c-objc-common.c: Moved to... * c-objc-common.cc: ...here. * c-parser.c: Moved to... * c-parser.cc: ...here. * c-typeck.c: Moved to... * c-typeck.cc: ...here. * gccspec.c: Moved to... * gccspec.cc: ...here. * gimple-parser.c: Moved to... * gimple-parser.cc: ...here. gcc/cp/ChangeLog: * call.c: Moved to... * call.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constexpr.c: Moved to... * constexpr.cc: ...here. * cp-gimplify.c: Moved to... * cp-gimplify.cc: ...here. * cp-lang.c: Moved to... * cp-lang.cc: ...here. * cp-objcp-common.c: Moved to... * cp-objcp-common.cc: ...here. * cp-ubsan.c: Moved to... * cp-ubsan.cc: ...here. * cvt.c: Moved to... * cvt.cc: ...here. * cxx-pretty-print.c: Moved to... * cxx-pretty-print.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * decl2.c: Moved to... * decl2.cc: ...here. * dump.c: Moved to... * dump.cc: ...here. * error.c: Moved to... * error.cc: ...here. * except.c: Moved to... * except.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * friend.c: Moved to... * friend.cc: ...here. * g++spec.c: Moved to... * g++spec.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lambda.c: Moved to... * lambda.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * mangle.c: Moved to... * mangle.cc: ...here. * method.c: Moved to... * method.cc: ...here. * name-lookup.c: Moved to... * name-lookup.cc: ...here. * optimize.c: Moved to... * optimize.cc: ...here. * parser.c: Moved to... * parser.cc: ...here. * pt.c: Moved to... * pt.cc: ...here. * ptree.c: Moved to... * ptree.cc: ...here. * rtti.c: Moved to... * rtti.cc: ...here. * search.c: Moved to... * search.cc: ...here. * semantics.c: Moved to... * semantics.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * typeck.c: Moved to... * typeck.cc: ...here. * typeck2.c: Moved to... * typeck2.cc: ...here. * vtable-class-hierarchy.c: Moved to... * vtable-class-hierarchy.cc: ...here. gcc/fortran/ChangeLog: * arith.c: Moved to... * arith.cc: ...here. * array.c: Moved to... * array.cc: ...here. * bbt.c: Moved to... * bbt.cc: ...here. * check.c: Moved to... * check.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constructor.c: Moved to... * constructor.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * cpp.c: Moved to... * cpp.cc: ...here. * data.c: Moved to... * data.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * dependency.c: Moved to... * dependency.cc: ...here. * dump-parse-tree.c: Moved to... * dump-parse-tree.cc: ...here. * error.c: Moved to... * error.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * f95-lang.c: Moved to... * f95-lang.cc: ...here. * frontend-passes.c: Moved to... * frontend-passes.cc: ...here. * gfortranspec.c: Moved to... * gfortranspec.cc: ...here. * interface.c: Moved to... * interface.cc: ...here. * intrinsic.c: Moved to... * intrinsic.cc: ...here. * io.c: Moved to... * io.cc: ...here. * iresolve.c: Moved to... * iresolve.cc: ...here. * match.c: Moved to... * match.cc: ...here. * matchexp.c: Moved to... * matchexp.cc: ...here. * misc.c: Moved to... * misc.cc: ...here. * module.c: Moved to... * module.cc: ...here. * openmp.c: Moved to... * openmp.cc: ...here. * options.c: Moved to... * options.cc: ...here. * parse.c: Moved to... * parse.cc: ...here. * primary.c: Moved to... * primary.cc: ...here. * resolve.c: Moved to... * resolve.cc: ...here. * scanner.c: Moved to... * scanner.cc: ...here. * simplify.c: Moved to... * simplify.cc: ...here. * st.c: Moved to... * st.cc: ...here. * symbol.c: Moved to... * symbol.cc: ...here. * target-memory.c: Moved to... * target-memory.cc: ...here. * trans-array.c: Moved to... * trans-array.cc: ...here. * trans-common.c: Moved to... * trans-common.cc: ...here. * trans-const.c: Moved to... * trans-const.cc: ...here. * trans-decl.c: Moved to... * trans-decl.cc: ...here. * trans-expr.c: Moved to... * trans-expr.cc: ...here. * trans-intrinsic.c: Moved to... * trans-intrinsic.cc: ...here. * trans-io.c: Moved to... * trans-io.cc: ...here. * trans-openmp.c: Moved to... * trans-openmp.cc: ...here. * trans-stmt.c: Moved to... * trans-stmt.cc: ...here. * trans-types.c: Moved to... * trans-types.cc: ...here. * trans.c: Moved to... * trans.cc: ...here. gcc/go/ChangeLog: * go-backend.c: Moved to... * go-backend.cc: ...here. * go-lang.c: Moved to... * go-lang.cc: ...here. * gospec.c: Moved to... * gospec.cc: ...here. gcc/jit/ChangeLog: * dummy-frontend.c: Moved to... * dummy-frontend.cc: ...here. * jit-builtins.c: Moved to... * jit-builtins.cc: ...here. * jit-logging.c: Moved to... * jit-logging.cc: ...here. * jit-playback.c: Moved to... * jit-playback.cc: ...here. * jit-recording.c: Moved to... * jit-recording.cc: ...here. * jit-result.c: Moved to... * jit-result.cc: ...here. * jit-spec.c: Moved to... * jit-spec.cc: ...here. * jit-tempdir.c: Moved to... * jit-tempdir.cc: ...here. * jit-w32.c: Moved to... * jit-w32.cc: ...here. * libgccjit.c: Moved to... * libgccjit.cc: ...here. gcc/lto/ChangeLog: * common.c: Moved to... * common.cc: ...here. * lto-common.c: Moved to... * 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objcp-lang.cc: ...here. libcpp/ChangeLog: * charset.c: Moved to... * charset.cc: ...here. * directives.c: Moved to... * directives.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * files.c: Moved to... * files.cc: ...here. * identifiers.c: Moved to... * identifiers.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * line-map.c: Moved to... * line-map.cc: ...here. * macro.c: Moved to... * macro.cc: ...here. * makeucnid.c: Moved to... * makeucnid.cc: ...here. * mkdeps.c: Moved to... * mkdeps.cc: ...here. * pch.c: Moved to... * pch.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * traditional.c: Moved to... * traditional.cc: ...here.
Diffstat (limited to 'gcc/loop-doloop.c')
-rw-r--r--gcc/loop-doloop.c807
1 files changed, 0 insertions, 807 deletions
diff --git a/gcc/loop-doloop.c b/gcc/loop-doloop.c
deleted file mode 100644
index 8ef94f9..0000000
--- a/gcc/loop-doloop.c
+++ /dev/null
@@ -1,807 +0,0 @@
-/* Perform doloop optimizations
- Copyright (C) 2004-2022 Free Software Foundation, Inc.
- Based on code by Michael P. Hayes (m.hayes@elec.canterbury.ac.nz)
-
-This file is part of GCC.
-
-GCC is free software; you can redistribute it and/or modify it under
-the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 3, or (at your option) any later
-version.
-
-GCC is distributed in the hope that it will be useful, but WITHOUT ANY
-WARRANTY; without even the implied warranty of MERCHANTABILITY or
-FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-for more details.
-
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING3. If not see
-<http://www.gnu.org/licenses/>. */
-
-#include "config.h"
-#include "system.h"
-#include "coretypes.h"
-#include "backend.h"
-#include "target.h"
-#include "rtl.h"
-#include "tree.h"
-#include "cfghooks.h"
-#include "memmodel.h"
-#include "emit-rtl.h"
-#include "dojump.h"
-#include "expr.h"
-#include "cfgloop.h"
-#include "cfgrtl.h"
-#include "dumpfile.h"
-#include "loop-unroll.h"
-#include "regs.h"
-#include "df.h"
-
-/* This module is used to modify loops with a determinable number of
- iterations to use special low-overhead looping instructions.
-
- It first validates whether the loop is well behaved and has a
- determinable number of iterations (either at compile or run-time).
- It then modifies the loop to use a low-overhead looping pattern as
- follows:
-
- 1. A pseudo register is allocated as the loop iteration counter.
-
- 2. The number of loop iterations is calculated and is stored
- in the loop counter.
-
- 3. At the end of the loop, the jump insn is replaced by the
- doloop_end pattern. The compare must remain because it might be
- used elsewhere. If the loop-variable or condition register are
- used elsewhere, they will be eliminated by flow.
-
- 4. An optional doloop_begin pattern is inserted at the top of the
- loop.
-
- TODO The optimization should only performed when either the biv used for exit
- condition is unused at all except for the exit test, or if we do not have to
- change its value, since otherwise we have to add a new induction variable,
- which usually will not pay up (unless the cost of the doloop pattern is
- somehow extremely lower than the cost of compare & jump, or unless the bct
- register cannot be used for anything else but doloop -- ??? detect these
- cases). */
-
-/* Return the loop termination condition for PATTERN or zero
- if it is not a decrement and branch jump insn. */
-
-rtx
-doloop_condition_get (rtx_insn *doloop_pat)
-{
- rtx cmp;
- rtx inc;
- rtx reg;
- rtx inc_src;
- rtx condition;
- rtx pattern;
- rtx cc_reg = NULL_RTX;
- rtx reg_orig = NULL_RTX;
-
- /* The canonical doloop pattern we expect has one of the following
- forms:
-
- 1) (parallel [(set (pc) (if_then_else (condition)
- (label_ref (label))
- (pc)))
- (set (reg) (plus (reg) (const_int -1)))
- (additional clobbers and uses)])
-
- The branch must be the first entry of the parallel (also required
- by jump.c), and the second entry of the parallel must be a set of
- the loop counter register. Some targets (IA-64) wrap the set of
- the loop counter in an if_then_else too.
-
- 2) (set (reg) (plus (reg) (const_int -1))
- (set (pc) (if_then_else (reg != 0)
- (label_ref (label))
- (pc))).
-
- Some targets (ARM) do the comparison before the branch, as in the
- following form:
-
- 3) (parallel [(set (cc) (compare ((plus (reg) (const_int -1), 0)))
- (set (reg) (plus (reg) (const_int -1)))])
- (set (pc) (if_then_else (cc == NE)
- (label_ref (label))
- (pc))) */
-
- pattern = PATTERN (doloop_pat);
-
- if (GET_CODE (pattern) != PARALLEL)
- {
- rtx cond;
- rtx_insn *prev_insn = prev_nondebug_insn (doloop_pat);
- rtx cmp_arg1, cmp_arg2;
- rtx cmp_orig;
-
- /* In case the pattern is not PARALLEL we expect two forms
- of doloop which are cases 2) and 3) above: in case 2) the
- decrement immediately precedes the branch, while in case 3)
- the compare and decrement instructions immediately precede
- the branch. */
-
- if (prev_insn == NULL_RTX || !INSN_P (prev_insn))
- return 0;
-
- cmp = pattern;
- if (GET_CODE (PATTERN (prev_insn)) == PARALLEL)
- {
- /* The third case: the compare and decrement instructions
- immediately precede the branch. */
- cmp_orig = XVECEXP (PATTERN (prev_insn), 0, 0);
- if (GET_CODE (cmp_orig) != SET)
- return 0;
- if (GET_CODE (SET_SRC (cmp_orig)) != COMPARE)
- return 0;
- cmp_arg1 = XEXP (SET_SRC (cmp_orig), 0);
- cmp_arg2 = XEXP (SET_SRC (cmp_orig), 1);
- if (cmp_arg2 != const0_rtx
- || GET_CODE (cmp_arg1) != PLUS)
- return 0;
- reg_orig = XEXP (cmp_arg1, 0);
- if (XEXP (cmp_arg1, 1) != GEN_INT (-1)
- || !REG_P (reg_orig))
- return 0;
- cc_reg = SET_DEST (cmp_orig);
-
- inc = XVECEXP (PATTERN (prev_insn), 0, 1);
- }
- else
- inc = PATTERN (prev_insn);
- if (GET_CODE (cmp) == SET && GET_CODE (SET_SRC (cmp)) == IF_THEN_ELSE)
- {
- /* We expect the condition to be of the form (reg != 0) */
- cond = XEXP (SET_SRC (cmp), 0);
- if (GET_CODE (cond) != NE || XEXP (cond, 1) != const0_rtx)
- return 0;
- }
- }
- else
- {
- cmp = XVECEXP (pattern, 0, 0);
- inc = XVECEXP (pattern, 0, 1);
- }
-
- /* Check for (set (reg) (something)). */
- if (GET_CODE (inc) != SET)
- return 0;
- reg = SET_DEST (inc);
- if (! REG_P (reg))
- return 0;
-
- /* Check if something = (plus (reg) (const_int -1)).
- On IA-64, this decrement is wrapped in an if_then_else. */
- inc_src = SET_SRC (inc);
- if (GET_CODE (inc_src) == IF_THEN_ELSE)
- inc_src = XEXP (inc_src, 1);
- if (GET_CODE (inc_src) != PLUS
- || XEXP (inc_src, 0) != reg
- || XEXP (inc_src, 1) != constm1_rtx)
- return 0;
-
- /* Check for (set (pc) (if_then_else (condition)
- (label_ref (label))
- (pc))). */
- if (GET_CODE (cmp) != SET
- || SET_DEST (cmp) != pc_rtx
- || GET_CODE (SET_SRC (cmp)) != IF_THEN_ELSE
- || GET_CODE (XEXP (SET_SRC (cmp), 1)) != LABEL_REF
- || XEXP (SET_SRC (cmp), 2) != pc_rtx)
- return 0;
-
- /* Extract loop termination condition. */
- condition = XEXP (SET_SRC (cmp), 0);
-
- /* We expect a GE or NE comparison with 0 or 1. */
- if ((GET_CODE (condition) != GE
- && GET_CODE (condition) != NE)
- || (XEXP (condition, 1) != const0_rtx
- && XEXP (condition, 1) != const1_rtx))
- return 0;
-
- if ((XEXP (condition, 0) == reg)
- /* For the third case: */
- || ((cc_reg != NULL_RTX)
- && (XEXP (condition, 0) == cc_reg)
- && (reg_orig == reg))
- || (GET_CODE (XEXP (condition, 0)) == PLUS
- && XEXP (XEXP (condition, 0), 0) == reg))
- {
- if (GET_CODE (pattern) != PARALLEL)
- /* For the second form we expect:
-
- (set (reg) (plus (reg) (const_int -1))
- (set (pc) (if_then_else (reg != 0)
- (label_ref (label))
- (pc))).
-
- is equivalent to the following:
-
- (parallel [(set (pc) (if_then_else (reg != 1)
- (label_ref (label))
- (pc)))
- (set (reg) (plus (reg) (const_int -1)))
- (additional clobbers and uses)])
-
- For the third form we expect:
-
- (parallel [(set (cc) (compare ((plus (reg) (const_int -1)), 0))
- (set (reg) (plus (reg) (const_int -1)))])
- (set (pc) (if_then_else (cc == NE)
- (label_ref (label))
- (pc)))
-
- which is equivalent to the following:
-
- (parallel [(set (cc) (compare (reg, 1))
- (set (reg) (plus (reg) (const_int -1)))
- (set (pc) (if_then_else (NE == cc)
- (label_ref (label))
- (pc))))])
-
- So we return the second form instead for the two cases.
-
- */
- condition = gen_rtx_fmt_ee (NE, VOIDmode, inc_src, const1_rtx);
-
- return condition;
- }
-
- /* ??? If a machine uses a funny comparison, we could return a
- canonicalized form here. */
-
- return 0;
-}
-
-/* Return nonzero if the loop specified by LOOP is suitable for
- the use of special low-overhead looping instructions. DESC
- describes the number of iterations of the loop. */
-
-static bool
-doloop_valid_p (class loop *loop, class niter_desc *desc)
-{
- basic_block *body = get_loop_body (loop), bb;
- rtx_insn *insn;
- unsigned i;
- bool result = true;
-
- /* Check for loops that may not terminate under special conditions. */
- if (!desc->simple_p
- || desc->assumptions
- || desc->infinite)
- {
- /* There are some cases that would require a special attention.
- For example if the comparison is LEU and the comparison value
- is UINT_MAX then the loop will not terminate. Similarly, if the
- comparison code is GEU and the comparison value is 0, the
- loop will not terminate.
-
- If the absolute increment is not 1, the loop can be infinite
- even with LTU/GTU, e.g. for (i = 3; i > 0; i -= 2)
-
- ??? We could compute these conditions at run-time and have a
- additional jump around the loop to ensure an infinite loop.
- However, it is very unlikely that this is the intended
- behavior of the loop and checking for these rare boundary
- conditions would pessimize all other code.
-
- If the loop is executed only a few times an extra check to
- restart the loop could use up most of the benefits of using a
- count register loop. Note however, that normally, this
- restart branch would never execute, so it could be predicted
- well by the CPU. We should generate the pessimistic code by
- default, and have an option, e.g. -funsafe-loops that would
- enable count-register loops in this case. */
- if (dump_file)
- fprintf (dump_file, "Doloop: Possible infinite iteration case.\n");
- result = false;
- goto cleanup;
- }
-
- for (i = 0; i < loop->num_nodes; i++)
- {
- bb = body[i];
-
- for (insn = BB_HEAD (bb);
- insn != NEXT_INSN (BB_END (bb));
- insn = NEXT_INSN (insn))
- {
- /* Different targets have different necessities for low-overhead
- looping. Call the back end for each instruction within the loop
- to let it decide whether the insn prohibits a low-overhead loop.
- It will then return the cause for it to emit to the dump file. */
- const char * invalid = targetm.invalid_within_doloop (insn);
- if (invalid)
- {
- if (dump_file)
- fprintf (dump_file, "Doloop: %s\n", invalid);
- result = false;
- goto cleanup;
- }
- }
- }
- result = true;
-
-cleanup:
- free (body);
-
- return result;
-}
-
-/* Adds test of COND jumping to DEST on edge *E and set *E to the new fallthru
- edge. If the condition is always false, do not do anything. If it is always
- true, redirect E to DEST and return false. In all other cases, true is
- returned. */
-
-static bool
-add_test (rtx cond, edge *e, basic_block dest)
-{
- rtx_insn *seq, *jump;
- rtx_code_label *label;
- machine_mode mode;
- rtx op0 = XEXP (cond, 0), op1 = XEXP (cond, 1);
- enum rtx_code code = GET_CODE (cond);
- basic_block bb;
- /* The jump is supposed to handle an unlikely special case. */
- profile_probability prob = profile_probability::guessed_never ();
-
- mode = GET_MODE (XEXP (cond, 0));
- if (mode == VOIDmode)
- mode = GET_MODE (XEXP (cond, 1));
-
- start_sequence ();
- op0 = force_operand (op0, NULL_RTX);
- op1 = force_operand (op1, NULL_RTX);
- label = block_label (dest);
- do_compare_rtx_and_jump (op0, op1, code, 0, mode, NULL_RTX, NULL, label,
- prob);
-
- jump = get_last_insn ();
- if (!jump || !JUMP_P (jump))
- {
- /* The condition is always false and the jump was optimized out. */
- end_sequence ();
- return true;
- }
-
- seq = get_insns ();
- unshare_all_rtl_in_chain (seq);
- end_sequence ();
-
- /* There always is at least the jump insn in the sequence. */
- gcc_assert (seq != NULL_RTX);
-
- bb = split_edge_and_insert (*e, seq);
- *e = single_succ_edge (bb);
-
- if (any_uncondjump_p (jump) && onlyjump_p (jump))
- {
- /* The condition is always true. */
- delete_insn (jump);
- redirect_edge_and_branch_force (*e, dest);
- return false;
- }
-
- JUMP_LABEL (jump) = label;
-
- LABEL_NUSES (label)++;
-
- edge e2 = make_edge (bb, dest, (*e)->flags & ~EDGE_FALLTHRU);
- e2->probability = prob;
- (*e)->probability = prob.invert ();
- update_br_prob_note (e2->src);
- return true;
-}
-
-/* Fold (add -1; zero_ext; add +1) operations to zero_ext if not wrapping. i.e:
-
- 73: r145:SI=r123:DI#0-0x1
- 74: r144:DI=zero_extend (r145:SI)
- 75: r143:DI=r144:DI+0x1
- ...
- 31: r135:CC=cmp (r123:DI,0)
- 72: {pc={(r143:DI!=0x1)?L70:pc};r143:DI=r143:DI-0x1;...}
-
- r123:DI#0-0x1 is param count derived from loop->niter_expr equal to number of
- loop iterations, if loop iterations expression doesn't overflow, then
- (zero_extend (r123:DI#0-1))+1 can be simplified to zero_extend. */
-
-static rtx
-doloop_simplify_count (class loop *loop, scalar_int_mode mode, rtx count)
-{
- widest_int iterations;
- if (GET_CODE (count) == ZERO_EXTEND)
- {
- rtx extop0 = XEXP (count, 0);
- if (GET_CODE (extop0) == PLUS)
- {
- rtx addop0 = XEXP (extop0, 0);
- rtx addop1 = XEXP (extop0, 1);
-
- if (get_max_loop_iterations (loop, &iterations)
- && wi::ltu_p (iterations, GET_MODE_MASK (GET_MODE (addop0)))
- && addop1 == constm1_rtx)
- return simplify_gen_unary (ZERO_EXTEND, mode, addop0,
- GET_MODE (addop0));
- }
- }
-
- return simplify_gen_binary (PLUS, mode, count, const1_rtx);
-}
-
-/* Modify the loop to use the low-overhead looping insn where LOOP
- describes the loop, DESC describes the number of iterations of the
- loop, and DOLOOP_INSN is the low-overhead looping insn to emit at the
- end of the loop. CONDITION is the condition separated from the
- DOLOOP_SEQ. COUNT is the number of iterations of the LOOP. */
-
-static void
-doloop_modify (class loop *loop, class niter_desc *desc,
- rtx_insn *doloop_seq, rtx condition, rtx count)
-{
- rtx counter_reg;
- rtx tmp, noloop = NULL_RTX;
- rtx_insn *sequence;
- rtx_insn *jump_insn;
- rtx_code_label *jump_label;
- int nonneg = 0;
- bool increment_count;
- basic_block loop_end = desc->out_edge->src;
- scalar_int_mode mode;
- widest_int iterations;
-
- jump_insn = BB_END (loop_end);
-
- if (dump_file)
- {
- fprintf (dump_file, "Doloop: Inserting doloop pattern (");
- if (desc->const_iter)
- fprintf (dump_file, "%" PRId64, desc->niter);
- else
- fputs ("runtime", dump_file);
- fputs (" iterations).\n", dump_file);
- }
-
- /* Discard original jump to continue loop. The original compare
- result may still be live, so it cannot be discarded explicitly. */
- delete_insn (jump_insn);
-
- counter_reg = XEXP (condition, 0);
- if (GET_CODE (counter_reg) == PLUS)
- counter_reg = XEXP (counter_reg, 0);
- /* These patterns must operate on integer counters. */
- mode = as_a <scalar_int_mode> (GET_MODE (counter_reg));
-
- increment_count = false;
- switch (GET_CODE (condition))
- {
- case NE:
- /* Currently only NE tests against zero and one are supported. */
- noloop = XEXP (condition, 1);
- if (noloop != const0_rtx)
- {
- gcc_assert (noloop == const1_rtx);
- increment_count = true;
- }
- break;
-
- case GE:
- /* Currently only GE tests against zero are supported. */
- gcc_assert (XEXP (condition, 1) == const0_rtx);
-
- noloop = constm1_rtx;
-
- /* The iteration count does not need incrementing for a GE test. */
- increment_count = false;
-
- /* Determine if the iteration counter will be non-negative.
- Note that the maximum value loaded is iterations_max - 1. */
- if (get_max_loop_iterations (loop, &iterations)
- && wi::leu_p (iterations,
- wi::set_bit_in_zero <widest_int>
- (GET_MODE_PRECISION (mode) - 1)))
- nonneg = 1;
- break;
-
- /* Abort if an invalid doloop pattern has been generated. */
- default:
- gcc_unreachable ();
- }
-
- if (increment_count)
- count = doloop_simplify_count (loop, mode, count);
-
- /* Insert initialization of the count register into the loop header. */
- start_sequence ();
- /* count has been already copied through copy_rtx. */
- reset_used_flags (count);
- set_used_flags (condition);
- tmp = force_operand (count, counter_reg);
- convert_move (counter_reg, tmp, 1);
- sequence = get_insns ();
- unshare_all_rtl_in_chain (sequence);
- end_sequence ();
- emit_insn_after (sequence, BB_END (loop_preheader_edge (loop)->src));
-
- if (desc->noloop_assumptions)
- {
- rtx ass = copy_rtx (desc->noloop_assumptions);
- basic_block preheader = loop_preheader_edge (loop)->src;
- basic_block set_zero = split_edge (loop_preheader_edge (loop));
- basic_block new_preheader = split_edge (loop_preheader_edge (loop));
- edge te;
-
- /* Expand the condition testing the assumptions and if it does not pass,
- reset the count register to 0. */
- redirect_edge_and_branch_force (single_succ_edge (preheader), new_preheader);
- set_immediate_dominator (CDI_DOMINATORS, new_preheader, preheader);
-
- set_zero->count = profile_count::uninitialized ();
-
- te = single_succ_edge (preheader);
- for (; ass; ass = XEXP (ass, 1))
- if (!add_test (XEXP (ass, 0), &te, set_zero))
- break;
-
- if (ass)
- {
- /* We reached a condition that is always true. This is very hard to
- reproduce (such a loop does not roll, and thus it would most
- likely get optimized out by some of the preceding optimizations).
- In fact, I do not have any testcase for it. However, it would
- also be very hard to show that it is impossible, so we must
- handle this case. */
- set_zero->count = preheader->count;
- }
-
- if (EDGE_COUNT (set_zero->preds) == 0)
- {
- /* All the conditions were simplified to false, remove the
- unreachable set_zero block. */
- delete_basic_block (set_zero);
- }
- else
- {
- /* Reset the counter to zero in the set_zero block. */
- start_sequence ();
- convert_move (counter_reg, noloop, 0);
- sequence = get_insns ();
- end_sequence ();
- emit_insn_after (sequence, BB_END (set_zero));
-
- set_immediate_dominator (CDI_DOMINATORS, set_zero,
- recompute_dominator (CDI_DOMINATORS,
- set_zero));
- }
-
- set_immediate_dominator (CDI_DOMINATORS, new_preheader,
- recompute_dominator (CDI_DOMINATORS,
- new_preheader));
- }
-
- /* Some targets (eg, C4x) need to initialize special looping
- registers. */
- if (targetm.have_doloop_begin ())
- if (rtx_insn *seq = targetm.gen_doloop_begin (counter_reg, doloop_seq))
- emit_insn_after (seq, BB_END (loop_preheader_edge (loop)->src));
-
- /* Insert the new low-overhead looping insn. */
- emit_jump_insn_after (doloop_seq, BB_END (loop_end));
- jump_insn = BB_END (loop_end);
- jump_label = block_label (desc->in_edge->dest);
- JUMP_LABEL (jump_insn) = jump_label;
- LABEL_NUSES (jump_label)++;
-
- /* Ensure the right fallthru edge is marked, for case we have reversed
- the condition. */
- desc->in_edge->flags &= ~EDGE_FALLTHRU;
- desc->out_edge->flags |= EDGE_FALLTHRU;
-
- /* Add a REG_NONNEG note if the actual or estimated maximum number
- of iterations is non-negative. */
- if (nonneg)
- add_reg_note (jump_insn, REG_NONNEG, NULL_RTX);
-
- /* Update the REG_BR_PROB note. */
- if (desc->in_edge->probability.initialized_p ())
- add_reg_br_prob_note (jump_insn, desc->in_edge->probability);
-}
-
-/* Called through note_stores. */
-
-static void
-record_reg_sets (rtx x, const_rtx pat ATTRIBUTE_UNUSED, void *data)
-{
- bitmap mod = (bitmap)data;
- if (REG_P (x))
- {
- unsigned int regno = REGNO (x);
- if (HARD_REGISTER_P (x))
- {
- unsigned int end_regno = end_hard_regno (GET_MODE (x), regno);
- do
- bitmap_set_bit (mod, regno);
- while (++regno < end_regno);
- }
- else
- bitmap_set_bit (mod, regno);
- }
-}
-
-/* Process loop described by LOOP validating that the loop is suitable for
- conversion to use a low overhead looping instruction, replacing the jump
- insn where suitable. Returns true if the loop was successfully
- modified. */
-
-static bool
-doloop_optimize (class loop *loop)
-{
- scalar_int_mode mode;
- rtx doloop_reg;
- rtx count;
- widest_int iterations, iterations_max;
- rtx_code_label *start_label;
- rtx condition;
- unsigned level;
- HOST_WIDE_INT est_niter;
- int max_cost;
- class niter_desc *desc;
- unsigned word_mode_size;
- unsigned HOST_WIDE_INT word_mode_max;
- int entered_at_top;
-
- if (dump_file)
- fprintf (dump_file, "Doloop: Processing loop %d.\n", loop->num);
-
- iv_analysis_loop_init (loop);
-
- /* Find the simple exit of a LOOP. */
- desc = get_simple_loop_desc (loop);
-
- /* Check that loop is a candidate for a low-overhead looping insn. */
- if (!doloop_valid_p (loop, desc))
- {
- if (dump_file)
- fprintf (dump_file,
- "Doloop: The loop is not suitable.\n");
- return false;
- }
- mode = desc->mode;
-
- est_niter = get_estimated_loop_iterations_int (loop);
- if (est_niter == -1)
- est_niter = get_likely_max_loop_iterations_int (loop);
-
- if (est_niter >= 0 && est_niter < 3)
- {
- if (dump_file)
- fprintf (dump_file,
- "Doloop: Too few iterations (%u) to be profitable.\n",
- (unsigned int)est_niter);
- return false;
- }
-
- max_cost
- = COSTS_N_INSNS (param_max_iterations_computation_cost);
- if (set_src_cost (desc->niter_expr, mode, optimize_loop_for_speed_p (loop))
- > max_cost)
- {
- if (dump_file)
- fprintf (dump_file,
- "Doloop: number of iterations too costly to compute.\n");
- return false;
- }
-
- if (desc->const_iter)
- iterations = widest_int::from (rtx_mode_t (desc->niter_expr, mode),
- UNSIGNED);
- else
- iterations = 0;
- if (!get_max_loop_iterations (loop, &iterations_max))
- iterations_max = 0;
- level = get_loop_level (loop) + 1;
- entered_at_top = (loop->latch == desc->in_edge->dest
- && contains_no_active_insn_p (loop->latch));
- if (!targetm.can_use_doloop_p (iterations, iterations_max, level,
- entered_at_top))
- {
- if (dump_file)
- fprintf (dump_file, "Loop rejected by can_use_doloop_p.\n");
- return false;
- }
-
- /* Generate looping insn. If the pattern FAILs then give up trying
- to modify the loop since there is some aspect the back-end does
- not like. */
- count = copy_rtx (desc->niter_expr);
- start_label = block_label (desc->in_edge->dest);
- doloop_reg = gen_reg_rtx (mode);
- rtx_insn *doloop_seq = targetm.gen_doloop_end (doloop_reg, start_label);
-
- word_mode_size = GET_MODE_PRECISION (word_mode);
- word_mode_max = (HOST_WIDE_INT_1U << (word_mode_size - 1) << 1) - 1;
- if (! doloop_seq
- && mode != word_mode
- /* Before trying mode different from the one in that # of iterations is
- computed, we must be sure that the number of iterations fits into
- the new mode. */
- && (word_mode_size >= GET_MODE_PRECISION (mode)
- || wi::leu_p (iterations_max, word_mode_max)))
- {
- if (word_mode_size > GET_MODE_PRECISION (mode))
- count = simplify_gen_unary (ZERO_EXTEND, word_mode, count, mode);
- else
- count = lowpart_subreg (word_mode, count, mode);
- PUT_MODE (doloop_reg, word_mode);
- doloop_seq = targetm.gen_doloop_end (doloop_reg, start_label);
- }
- if (! doloop_seq)
- {
- if (dump_file)
- fprintf (dump_file,
- "Doloop: Target unwilling to use doloop pattern!\n");
- return false;
- }
-
- /* If multiple instructions were created, the last must be the
- jump instruction. */
- rtx_insn *doloop_insn = doloop_seq;
- while (NEXT_INSN (doloop_insn) != NULL_RTX)
- doloop_insn = NEXT_INSN (doloop_insn);
- if (!JUMP_P (doloop_insn)
- || !(condition = doloop_condition_get (doloop_insn)))
- {
- if (dump_file)
- fprintf (dump_file, "Doloop: Unrecognizable doloop pattern!\n");
- return false;
- }
-
- /* Ensure that the new sequence doesn't clobber a register that
- is live at the end of the block. */
- {
- bitmap modified = BITMAP_ALLOC (NULL);
-
- for (rtx_insn *i = doloop_seq; i != NULL; i = NEXT_INSN (i))
- note_stores (i, record_reg_sets, modified);
-
- basic_block loop_end = desc->out_edge->src;
- bool fail = bitmap_intersect_p (df_get_live_out (loop_end), modified);
- BITMAP_FREE (modified);
-
- if (fail)
- {
- if (dump_file)
- fprintf (dump_file, "Doloop: doloop pattern clobbers live out\n");
- return false;
- }
- }
-
- doloop_modify (loop, desc, doloop_seq, condition, count);
- return true;
-}
-
-/* This is the main entry point. Process all loops using doloop_optimize. */
-
-void
-doloop_optimize_loops (void)
-{
- if (optimize == 1)
- {
- df_live_add_problem ();
- df_live_set_all_dirty ();
- }
-
- for (auto loop : loops_list (cfun, 0))
- doloop_optimize (loop);
-
- if (optimize == 1)
- df_remove_problem (df_live);
-
- iv_analysis_done ();
-
- checking_verify_loop_structure ();
-}
generated by cgit v1.1 at 2025-09-04 22:59:05 +0000