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[VSX] optimize shift operators

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Konstantinos Margaritis 2022-09-07 12:16:14 +03:00
parent be20c2c519
commit a837cf3bee
1 changed files with 12 additions and 38 deletions
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50
src/util/supervector/arch/ppc64el/impl.cpp
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@ -487,51 +487,25 @@ really_inline SuperVector<16> SuperVector<16>::vshr(uint8_t const N) const
template <> template <>
really_inline SuperVector<16> SuperVector<16>::operator>>(uint8_t const N) const really_inline SuperVector<16> SuperVector<16>::operator>>(uint8_t const N) const
{ {
switch(N) { #if defined(HAVE__BUILTIN_CONSTANT_P)
case 1: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 15)}; break; if (N == 0) return *this;
case 2: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 14)}; break; if (__builtin_constant_p(N)) {
case 3: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 13)}; break; return { vec_sld(vec_splat_s8(0), u.s8x16[0], 16 - N) };
case 4: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 12)}; break;
case 5: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 11)}; break;
case 6: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 10)}; break;
case 7: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 9)}; break;
case 8: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 8)}; break;
case 9: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 7)}; break;
case 10: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 6)}; break;
case 11: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 5)}; break;
case 12: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 4)}; break;
case 13: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 3)}; break;
case 14: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 2)}; break;
case 15: return {(m128) vec_sld((int8x16_t) vec_splat_s8(0), u.s8x16[0], 1)}; break;
case 16: return Zeroes(); break;
default: break;
} }
return *this; #endif
return vshr_128(N);
} }
template <> template <>
really_inline SuperVector<16> SuperVector<16>::operator<<(uint8_t const N) const really_inline SuperVector<16> SuperVector<16>::operator<<(uint8_t const N) const
{ {
switch(N) { #if defined(HAVE__BUILTIN_CONSTANT_P)
case 1: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 1)}; break; if (N == 0) return *this;
case 2: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 2)}; break; if (__builtin_constant_p(N)) {
case 3: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 3)}; break; return { vec_sld(u.s8x16[0], vec_splat_s8(0), N)};
case 4: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 4)}; break;
case 5: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 5)}; break;
case 6: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 6)}; break;
case 7: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 7)}; break;
case 8: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 8)}; break;
case 9: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 9)}; break;
case 10: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 10)}; break;
case 11: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 11)}; break;
case 12: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 12)}; break;
case 13: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 13)}; break;
case 14: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 14)}; break;
case 15: return {(m128) vec_sld(u.s8x16[0], (int8x16_t) vec_splat_s8(0), 15)}; break;
case 16: return Zeroes(); break;
default: break;
} }
return *this; #endif
return vshl_128(N);
} }
template<> template<>