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configure: Fix clang-7 incompatible optimization cxxflags.

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This commit is contained in:
Jason Volk 2019-07-19 16:22:18 -07:00
parent fd504be82c
commit df5f00d145
1 changed files with 14 additions and 10 deletions
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24
configure.ac
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@ -512,19 +512,23 @@ AM_COND_IF([LTO],
AM_COND_IF([OPTIMIZE],
[
optimize="yes"
CXXFLAGS+=" -fweb"
CXXFLAGS+=" -fdata-sections"
CXXFLAGS+=" -ffunction-sections"
CXXFLAGS+=" -ftree-vectorize"
CXXFLAGS+=" -fgcse-sm"
CXXFLAGS+=" -fgcse-las"
CXXFLAGS+=" -fgcse-after-reload"
CXXFLAGS+=" -fsched-stalled-insns=0"
CXXFLAGS+=" -frename-registers"
CXXFLAGS+=" -fira-hoist-pressure"
CXXFLAGS+=" -fbranch-target-load-optimize"
CXXFLAGS+=" -frerun-loop-opt"
CXXFLAGS+=" -fdevirtualize-at-ltrans"
AM_COND_IF([GCC],
[
CXXFLAGS+=" -fweb"
CXXFLAGS+=" -fgcse-sm"
CXXFLAGS+=" -fgcse-las"
CXXFLAGS+=" -fgcse-after-reload"
CXXFLAGS+=" -frename-registers"
CXXFLAGS+=" -fsched-stalled-insns=0"
CXXFLAGS+=" -fira-hoist-pressure"
CXXFLAGS+=" -fbranch-target-load-optimize"
CXXFLAGS+=" -frerun-loop-opt"
CXXFLAGS+=" -fdevirtualize-at-ltrans"
])
], [
optimize="no"
CXXFLAGS+=" -falign-functions"