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PGO and LTO in clang-cl

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wuggy 2026-09-12 04:29:47 -07:00
commit 70b4a79405
12 changed files with 290 additions and 15 deletions
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10
Makefile.in
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@ -220,14 +220,14 @@ ifneq ($(filter-out maybe_clobber_profiledbuild,$(MAKECMDGOALS)),)
GARBAGE_DIRS += dist _tests
endif
# Windows PGO builds don't perform a clean before the 2nd pass. So, we want
# MSVC PGO builds don't perform a clean before the 2nd pass. So, we want
# to preserve content for the 2nd pass on Windows. Everywhere else, we always
# process the install manifests as part of export.
# For the binaries rule, not all the install manifests matter, so force only
# the interesting ones to be done.
ifdef MOZ_PROFILE_USE
ifndef NO_PROFILE_GUIDED_OPTIMIZE
ifneq ($(OS_ARCH)_$(GNU_CC), WINNT_)
ifneq ($(OS_ARCH)_$(GNU_CC)_$(CLANG_CL), WINNT__)
recurse_pre-export:: install-manifests
binaries::
@$(MAKE) install-manifests install_manifests=dist/include
@ -247,6 +247,10 @@ recurse_artifact:
$(topsrcdir)/mach --log-no-times artifact install
ifndef JS_STANDALONE
# PGO training is also needed in release builds configured without tests.
pgo-profile-run:
$(PYTHON) $(topsrcdir)/build/pgo/profileserver.py $(EXTRA_TEST_ARGS)
ifdef ENABLE_TESTS
# Additional makefile targets to call automated test suites
include $(topsrcdir)/testing/testsuite-targets.mk
@ -356,7 +360,7 @@ pretty-installer:
#XXX: this is a hack, since we don't want to clobber for MSVC
# PGO support, but we can't do this test in client.mk
ifneq ($(OS_ARCH)_$(GNU_CC), WINNT_)
ifneq ($(OS_ARCH)_$(GNU_CC)_$(CLANG_CL), WINNT__)
# No point in clobbering if PGO has been explicitly disabled.
ifndef NO_PROFILE_GUIDED_OPTIMIZE
maybe_clobber_profiledbuild: clean