Merge pull request #46 from lissyx/avx-only

Enable optimizations flags upto AVX
mozilla · Dec 4, 2017 · 08894f6 · 08894f6
2 parents 5fdd0d2 + d82a91e
commit 08894f6
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/tc-vars.sh b/tc-vars.sh
@@ -75,10 +75,11 @@ export GCC_HOST_COMPILER_PATH=/usr/bin/gcc
 # Also ensure to not require too recent CPU: AVX2/FMA introduced by:
 #  - Intel with Haswell (2013)
 #  - AMD with Excavator (2015)
+# For better compatibility, AVX ony might be better.
 #
 # Build for generic amd64 platforms, no device-specific optimization
 # See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html for targetting specific CPUs
-CC_OPT_FLAGS="-mtune=generic -march=x86-64 -msse -msse2 -msse3 -msse4.1 -msse4.2 -mavx -mavx2 -mfma"
+CC_OPT_FLAGS="-mtune=generic -march=x86-64 -msse -msse2 -msse3 -msse4.1 -msse4.2 -mavx"
 BAZEL_OPT_FLAGS=""
 for flag in ${CC_OPT_FLAGS};
 do