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xcode: disable avx512 support

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xcode reports clang version 9. It does not appear to support inline
assembly using avx512 instructions.

Tested with cmake libyuv on Mac. Fails without this patch.

BUG=libyuv:789
This commit is contained in:
Johann 2018-06-29 06:44:13 -07:00
parent 4d67b3e851
commit 8b458d5bd9
1 changed files with 3 additions and 2 deletions
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5
include/libyuv/row.h
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@ -56,9 +56,10 @@ extern "C" {
#endif // __clang__
// clang >= 6.0.0 required for AVX512.
// TODO(fbarchard): fix xcode 9 ios b/789.
#if defined(__clang__) && (defined(__x86_64__) || defined(__i386__))
#if (__clang_major__ >= 7) && !defined(__APPLE_EMBEDDED_SIMULATOR__)
// clang in xcode follows a different versioning scheme.
// TODO(fbarchard): fix xcode 9 ios b/789.
#if (__clang_major__ >= 7) && !defined(__APPLE__)
#define CLANG_HAS_AVX512 1
#endif // clang >= 7
#endif // __clang__