Commit | Line | Data |
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9f1528a1 AB |
1 | # This option enables LTO for stage4 and LTO for generators in stage3 with profiledbootstrap. |
2 | # Otherwise, LTO is used in only stage3. | |
3 | ||
4 | STAGE3_CFLAGS += -flto=jobserver | |
5 | override STAGEtrain_CFLAGS := $(filter-out -flto=jobserver,$(STAGEtrain_CFLAGS)) | |
6 | STAGEtrain_GENERATOR_CFLAGS += -flto=jobserver | |
7 | STAGEfeedback_CFLAGS += -flto=jobserver | |
8 | ||
9 | # assumes the host supports the linker plugin | |
10 | LTO_AR = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ar$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/ | |
11 | LTO_RANLIB = $$r/$(HOST_SUBDIR)/prev-gcc/gcc-ranlib$(exeext) -B$$r/$(HOST_SUBDIR)/prev-gcc/ | |
12 | ||
13 | LTO_EXPORTS = AR="$(LTO_AR)"; export AR; \ | |
14 | RANLIB="$(LTO_RANLIB)"; export RANLIB; | |
15 | LTO_FLAGS_TO_PASS = AR="$(LTO_AR)" RANLIB="$(LTO_RANLIB)" | |
16 | ||
17 | do-compare = /bin/true |