ed1204a2d1
ARM6 and below do not support the yield instruction. Do not use it there. Signed-off-by: Rosen Penev <rosenp@gmail.com>
11 lines
377 B
Diff
11 lines
377 B
Diff
--- a/folly/portability/Asm.h
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+++ b/folly/portability/Asm.h
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@@ -38,7 +38,7 @@ inline void asm_volatile_pause() {
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::_mm_pause();
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#elif defined(__i386__) || FOLLY_X64
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asm volatile("pause");
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-#elif FOLLY_AARCH64 || defined(__arm__)
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+#elif FOLLY_AARCH64 || (defined(__arm__) && !(__ARM_ARCH < 7))
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asm volatile("yield");
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#elif FOLLY_PPC64
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asm volatile("or 27,27,27");
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