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CI-unixish.yml: use LTO in the callgrind step #577

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CI-unixish.yml: use LTO in the callgrind step #577

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CI-unixish.yml: use LTO in the callgrind step
firewave Oct 3, 2025
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firewave Nov 1, 2025
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7 changes: 4 additions & 3 deletions .github/workflows/CI-unixish.yml
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Expand Up @@ -149,21 +149,22 @@ jobs:
rm -f 1.5.1.tar.gz

make clean
make -j$(nproc) CXXOPTS="-O2 -g3" simplecpp
# TODO: we could also use -O3 but that causes a performance regression with GCC
make -j$(nproc) CXXOPTS="-O2 -g3 -flto" LDOPTS="-flto" simplecpp
VALGRIND_TOOL=callgrind SIMPLECPP_PATH=simplecpp-1.5.1 ./selfcheck.sh >callgrind.log || (cat callgrind.log && false)
cat callgrind.log

# PGO - start
make clean
make -j$(nproc) CXXOPTS="-O2 -g3 -fprofile-generate" LDOPTS="-fprofile-generate" simplecpp
make -j$(nproc) CXXOPTS="-O2 -g3 -flto -fprofile-generate" LDOPTS="-flto -fprofile-generate" simplecpp
SIMPLECPP_PATH=simplecpp-1.5.1 ./selfcheck.sh >/dev/null

if compgen -G "default_*.profraw" > /dev/null; then
llvm-profdata merge -output=default.profdata default_*.profraw
fi

make clean
make -j$(nproc) CXXOPTS="-O2 -g3 -fprofile-use" LDOPTS="-fprofile-use" simplecpp
make -j$(nproc) CXXOPTS="-O2 -g3 -flto -fprofile-use" LDOPTS="-flto -fprofile-use" simplecpp
VALGRIND_TOOL=callgrind SIMPLECPP_PATH=simplecpp-1.5.1 ./selfcheck.sh >callgrind_pgo.log || (cat callgrind_pgo.log && false)
cat callgrind_pgo.log
# PGO - end
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