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enable LTO in optimized builds

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gives 2-5% performance improvement across a board of tests.
LTO is broken when using clang; some libs link fine while others crash
the linker with a segfault in the llvm linker plugin. 🙁
This commit is contained in:
pennae 2021-12-21 19:34:40 +01:00
parent 6097790863
commit 2799fe4cdb
6 changed files with 25 additions and 6 deletions
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3
Makefile
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@ -27,7 +27,8 @@ makefiles = \
OPTIMIZE = 1
ifeq ($(OPTIMIZE), 1)
GLOBAL_CXXFLAGS += -O3
GLOBAL_CXXFLAGS += -O3 $(CXXLTO)
GLOBAL_LDFLAGS += $(CXXLTO)
else
GLOBAL_CXXFLAGS += -O0 -U_FORTIFY_SOURCE
endif