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fast_roundf implementations in asm for ARM64. (#511)

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David CARLIER 2020-12-25 06:48:57 +00:00 committed by GitHub
parent 6ae0115bf7
commit 8c4c14ea73
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6
common/alnumeric.h
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@ -329,6 +329,12 @@ inline float fast_roundf(float f) noexcept
__asm__ __volatile__("frndint" : "=t"(out) : "0"(f)); __asm__ __volatile__("frndint" : "=t"(out) : "0"(f));
return out; return out;
#elif (defined(__GNUC__) || defined(__clang__)) && defined(__aarch64__)
float out;
__asm__ volatile("frintx %s0, %s1" : "=w"(out) : "w"(f));
return out;
#else #else
/* Integral limit, where sub-integral precision is not available for /* Integral limit, where sub-integral precision is not available for