diff options
Diffstat (limited to 'Makefile.pre.in')
| -rw-r--r-- | Makefile.pre.in | 65 |
1 files changed, 50 insertions, 15 deletions
diff --git a/Makefile.pre.in b/Makefile.pre.in index da3a8f6..eb79c9c 100644 --- a/Makefile.pre.in +++ b/Makefile.pre.in @@ -672,21 +672,55 @@ profile-opt: profile-run-stamp -rm -f profile-clean-stamp $(MAKE) @DEF_MAKE_RULE@ CFLAGS_NODIST="$(CFLAGS_NODIST) $(PGO_PROF_USE_FLAG)" LDFLAGS_NODIST="$(LDFLAGS_NODIST)" -.PHONY: bolt-opt -bolt-opt: @PREBOLT_RULE@ +# List of binaries that BOLT runs on. +BOLT_BINARIES := @BOLT_BINARIES@ + +BOLT_INSTRUMENT_FLAGS := @BOLT_INSTRUMENT_FLAGS@ +BOLT_APPLY_FLAGS := @BOLT_APPLY_FLAGS@ + +.PHONY: clean-bolt +clean-bolt: + # Profile data. rm -f *.fdata - @if $(READELF) -p .note.bolt_info $(BUILDPYTHON) | grep BOLT > /dev/null; then\ - echo "skip: $(BUILDPYTHON) is already BOLTed."; \ - else \ - @LLVM_BOLT@ ./$(BUILDPYTHON) -instrument -instrumentation-file-append-pid -instrumentation-file=$(abspath $(BUILDPYTHON).bolt) -o $(BUILDPYTHON).bolt_inst; \ - ./$(BUILDPYTHON).bolt_inst $(PROFILE_TASK) || true; \ - @MERGE_FDATA@ $(BUILDPYTHON).*.fdata > $(BUILDPYTHON).fdata; \ - @LLVM_BOLT@ ./$(BUILDPYTHON) -o $(BUILDPYTHON).bolt -data=$(BUILDPYTHON).fdata -update-debug-sections -reorder-blocks=ext-tsp -reorder-functions=hfsort+ -split-functions -icf=1 -inline-all -split-eh -reorder-functions-use-hot-size -peepholes=none -jump-tables=aggressive -inline-ap -indirect-call-promotion=all -dyno-stats -use-gnu-stack -frame-opt=hot; \ - rm -f *.fdata; \ - rm -f $(BUILDPYTHON).bolt_inst; \ - mv $(BUILDPYTHON).bolt $(BUILDPYTHON); \ - fi + # Pristine binaries before BOLT optimization. + rm -f *.prebolt + # BOLT instrumented binaries. + rm -f *.bolt_inst + +profile-bolt-stamp: $(BUILDPYTHON) + # Ensure a pristine, pre-BOLT copy of the binary and no profile data from last run. + for bin in $(BOLT_BINARIES); do \ + prebolt="$${bin}.prebolt"; \ + if [ -e "$${prebolt}" ]; then \ + echo "Restoring pre-BOLT binary $${prebolt}"; \ + mv "$${bin}.prebolt" "$${bin}"; \ + fi; \ + cp "$${bin}" "$${prebolt}"; \ + rm -f $${bin}.bolt.*.fdata $${bin}.fdata; \ + done + # Instrument each binary. + for bin in $(BOLT_BINARIES); do \ + @LLVM_BOLT@ "$${bin}" -instrument -instrumentation-file-append-pid -instrumentation-file=$(abspath $${bin}.bolt) -o $${bin}.bolt_inst $(BOLT_INSTRUMENT_FLAGS); \ + mv "$${bin}.bolt_inst" "$${bin}"; \ + done + # Run instrumented binaries to collect data. + $(RUNSHARED) ./$(BUILDPYTHON) $(PROFILE_TASK) || true + # Merge all the data files together. + for bin in $(BOLT_BINARIES); do \ + @MERGE_FDATA@ $${bin}.*.fdata > "$${bin}.fdata"; \ + rm -f $${bin}.*.fdata; \ + done + # Run bolt against the merged data to produce an optimized binary. + for bin in $(BOLT_BINARIES); do \ + @LLVM_BOLT@ "$${bin}.prebolt" -o "$${bin}.bolt" -data="$${bin}.fdata" $(BOLT_APPLY_FLAGS); \ + mv "$${bin}.bolt" "$${bin}"; \ + done + touch $@ +.PHONY: bolt-opt +bolt-opt: + $(MAKE) @PREBOLT_RULE@ + $(MAKE) profile-bolt-stamp # Compile and run with gcov .PHONY: coverage @@ -2623,10 +2657,11 @@ profile-removal: rm -f $(COVERAGE_INFO) rm -rf $(COVERAGE_REPORT) rm -f profile-run-stamp + rm -f profile-bolt-stamp .PHONY: clean -clean: clean-retain-profile - @if test @DEF_MAKE_ALL_RULE@ = profile-opt; then \ +clean: clean-retain-profile clean-bolt + @if test @DEF_MAKE_ALL_RULE@ = profile-opt -o @DEF_MAKE_ALL_RULE@ = bolt-opt; then \ rm -f profile-gen-stamp profile-clean-stamp; \ $(MAKE) profile-removal; \ fi |