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core/simd/x86: Fix _mm_blend_epi16

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Yawning Angel
2026-03-16 15:51:04 +09:00
parent 5fa274cb6a
commit 9051f5a075
1 changed files with 12 additions and 3 deletions
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15
core/simd/x86/sse41.odin
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@@ -26,7 +26,18 @@ _mm_blendv_epi8 :: #force_inline proc "c" (a, b, mask: __m128i) -> __m128i {
}
@(require_results, enable_target_feature="sse4.1")
_mm_blend_epi16 :: #force_inline proc "c" (a, b: __m128i, $IMM8: u8) -> __m128i {
return transmute(__m128i)pblendw(transmute(i16x8)a, transmute(i16x8)b, IMM8)
return transmute(__m128i)simd.shuffle(
transmute(i16x8)b,
transmute(i16x8)a,
0 when (IMM8 >> 0) & 1 == 1 else 8,
1 when (IMM8 >> 1) & 1 == 1 else 9,
2 when (IMM8 >> 2) & 1 == 1 else 10,
3 when (IMM8 >> 3) & 1 == 1 else 11,
4 when (IMM8 >> 4) & 1 == 1 else 12,
5 when (IMM8 >> 5) & 1 == 1 else 13,
6 when (IMM8 >> 6) & 1 == 1 else 14,
7 when (IMM8 >> 7) & 1 == 1 else 15,
)
}
@(require_results, enable_target_feature="sse4.1")
_mm_blendv_pd :: #force_inline proc "c" (a, b, mask: __m128d) -> __m128d {
@@ -303,8 +314,6 @@ foreign _ {
blendpd :: proc(a, b: __m128d, #const imm2: u8) -> __m128d ---
@(link_name = "llvm.x86.sse41.blendps")
blendps :: proc(a, b: __m128, #const imm4: u8) -> __m128 ---
@(link_name = "llvm.x86.sse41.pblendw")
pblendw :: proc(a: i16x8, b: i16x8, #const imm8: u8) -> i16x8 ---
@(link_name = "llvm.x86.sse41.insertps")
insertps :: proc(a, b: __m128, #const imm8: u8) -> __m128 ---
@(link_name = "llvm.x86.sse41.pmaxsb")