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platform_build_soong
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Disabled avx avx2 avx512 compiler flags by default. 

Library components can enable the flags based on
performance impact

Test: run-test gtest
Change-Id: I41c4464cffd2b0e830d4ab1c5a25b378e2a25129
Signed-off-by: jaishank <jaishankar.rajendran@intel.com>
This commit is contained in:
jaishank 2019-06-25 14:55:52 +05:30
parent d5dd534465
commit 7e84969f96
2 changed files with 18 additions and 5 deletions
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12
cc/config/x86_64_device.go
View File

@ -67,10 +67,16 @@ var (
"sse4": []string{"-msse4"},
"sse4_1": []string{"-msse4.1"},
"sse4_2": []string{"-msse4.2"},
// Not all cases there is performance gain by enabling -mavx -mavx2
// flags so these flags are not enabled by default.
// if there is performance gain in individual library components,
// the compiler flags can be set in corresponding bp files.
// "avx": []string{"-mavx"},
// "avx2": []string{"-mavx2"},
// "avx512": []string{"-mavx512"}
"popcnt": []string{"-mpopcnt"},
"avx": []string{"-mavx"},
"avx2": []string{"-mavx2"},
"avx512": []string{"-mavx512"},
"aes_ni": []string{"-maes"},
}
)

11
cc/config/x86_device.go
View File

@ -86,8 +86,15 @@ var (
"sse4": []string{"-msse4"},
"sse4_1": []string{"-msse4.1"},
"sse4_2": []string{"-msse4.2"},
"avx": []string{"-mavx"},
"avx2": []string{"-mavx2"},
// Not all cases there is performance gain by enabling -mavx -mavx2
// flags so these flags are not enabled by default.
// if there is performance gain in individual library components,
// the compiler flags can be set in corresponding bp files.
// "avx": []string{"-mavx"},
// "avx2": []string{"-mavx2"},
// "avx512": []string{"-mavx512"}
"aes_ni": []string{"-maes"},
}
)