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[VSX] add algorithm for alignr w/o use of immediates

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Konstantinos Margaritis 2022-09-07 00:01:54 +03:00
parent 94fe406f0c
commit 7295b9c718
1 changed files with 11 additions and 5 deletions
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16
src/util/arch/ppc64el/simd_utils.h
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@ -313,12 +313,18 @@ m128 palignr_imm(m128 r, m128 l, int offset) {
static really_really_inline
m128 palignr(m128 r, m128 l, int offset) {
#if defined(HS_OPTIMIZE)
// need a faster way to do this.
return palignr_imm(r, l, offset);
#else
return palignr_imm(r, l, offset);
if (offset == 0) return l;
if (offset == 16) return r;
#if defined(HAVE__BUILTIN_CONSTANT_P)
if (__builtin_constant_p(offset)) {
return (m128)vec_sld((int8x16_t)(r), (int8x16_t)(l), 16 - offset);
}
#endif
m128 sl = (m128) vec_splats((uint8_t) (offset << 3));
m128 sr = (m128) vec_splats((uint8_t) ((16 - offset) << 3));
m128 rhs = (m128) vec_slo((uint8x16_t) r, (uint8x16_t) sr);
m128 lhs = (m128) vec_sro((uint8x16_t) l, (uint8x16_t) sl);
return or128(lhs, rhs);
}
#undef CASE_ALIGN_VECTORS