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Disable NEON acceleration on older compilers #47099

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Disable NEON acceleration on older compilers #47099

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5 changes: 4 additions & 1 deletion aten/src/ATen/cpu/vec256/vec256_float_neon.h
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,8 @@ namespace {
// https://bugs.llvm.org/show_bug.cgi?id=45824
// Most likely we will do aarch32 support with inline asm.
#if defined(__aarch64__)
// See https://github.com/pytorch/pytorch/issues/47098
#if defined(__clang__) || (__GNUC__ > 8 || (__GNUC__ == 8 && __GNUC_MINOR__ > 3))

#ifdef __BIG_ENDIAN__
#error "Big endian is not supported."
Expand Down Expand Up @@ -675,6 +677,7 @@ Vec256<float> inline fmadd(const Vec256<float>& a, const Vec256<float>& b, const
return Vec256<float>(r0, r1);
}

#endif
#endif /* defined(__clang__) || (__GNUC__ > 8 || (__GNUC__ == 8 && __GNUC_MINOR__ > 3)) */
#endif /* defined(aarch64) */

}}}