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[VSX] optimize alignr method

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This commit is contained in:
Konstantinos Margaritis 2022-09-07 12:35:28 +03:00
parent a837cf3bee
commit 305a041c73
1 changed files with 13 additions and 22 deletions
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35
src/util/supervector/arch/ppc64el/impl.cpp
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@ -523,14 +523,14 @@ really_inline SuperVector<16> SuperVector<16>::Ones_vshl(uint8_t const N)
template <>
really_inline SuperVector<16> SuperVector<16>::loadu(void const *ptr)
{
return (m128) vec_xl(0, (const long64_t*)ptr);
return { vec_xl(0, (const long64_t*)ptr) };
}
template <>
really_inline SuperVector<16> SuperVector<16>::load(void const *ptr)
{
assert(ISALIGNED_N(ptr, alignof(SuperVector::size)));
return (m128) vec_xl(0, (const long64_t*)ptr);
return { vec_xl(0, (const long64_t*)ptr) };
}
template <>
@ -544,27 +544,18 @@ really_inline SuperVector<16> SuperVector<16>::loadu_maskz(void const *ptr, uint
template<>
really_inline SuperVector<16> SuperVector<16>::alignr(SuperVector<16> &other, int8_t offset)
{
switch(offset) {
case 0: return other; break;
case 1: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 15)}; break;
case 2: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 14)}; break;
case 3: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 13)}; break;
case 4: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 12)}; break;
case 5: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 11)}; break;
case 6: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 10)}; break;
case 7: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 9)}; break;
case 8: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 8)}; break;
case 9: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 7)}; break;
case 10: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 6)}; break;
case 11: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 5)}; break;
case 12: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 4)}; break;
case 13: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 3)}; break;
case 14: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 2)}; break;
case 15: return {(m128) vec_sld(u.s8x16[0], other.u.s8x16[0], 1)}; break;
default: break;
if (offset == 0) return other;
if (offset == 16) return *this;
#if defined(HAVE__BUILTIN_CONSTANT_P)
if (__builtin_constant_p(offset)) {
return { vec_sld(u.s8x16[0], other.u.s8x16[0], offset) };
}
return *this;
#endif
uint8x16_t sl = vec_splats((uint8_t) (offset << 3));
uint8x16_t sr = vec_splats((uint8_t) ((16 - offset) << 3));
uint8x16_t rhs = vec_slo(u.u8x16[0], sr);
uint8x16_t lhs = vec_sro(other.u.u8x16[0], sl);
return { vec_or(lhs, rhs) };
}
template<>