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core/simd/x86: Fix some intrinsics

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- _mm_slli_si128 produced totally incorrect output
- _mm_storeu_si128 refered to a LLVM intrinsic that is missing
This commit is contained in:
Yawning Angel
2024-07-16 01:29:43 +09:00
parent 401877184f
commit 390cd3c30d
1 changed files with 19 additions and 14 deletions
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core/simd/x86/sse2.odin
+9 -4
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@@ -144,9 +144,16 @@ _mm_subs_epu16 :: #force_inline proc "c" (a, b: __m128i) -> __m128i {
_mm_slli_si128_impl :: #force_inline proc "c" (a: __m128i, $IMM8: u32) -> __m128i { _mm_slli_si128_impl :: #force_inline proc "c" (a: __m128i, $IMM8: u32) -> __m128i {
shift :: IMM8 & 0xff shift :: IMM8 & 0xff
// This needs to emit behavior identical to PSLLDQ which is as follows:
//
// TEMP := COUNT
// IF (TEMP > 15) THEN TEMP := 16; FI
// DEST := DEST << (TEMP * 8)
// DEST[MAXVL-1:128] (Unmodified)
return transmute(__m128i)simd.shuffle( return transmute(__m128i)simd.shuffle(
transmute(i8x16)a,
i8x16(0), i8x16(0),
transmute(i8x16)a,
0 when shift > 15 else (16 - shift + 0), 0 when shift > 15 else (16 - shift + 0),
1 when shift > 15 else (16 - shift + 1), 1 when shift > 15 else (16 - shift + 1),
2 when shift > 15 else (16 - shift + 2), 2 when shift > 15 else (16 - shift + 2),
@@ -435,7 +442,7 @@ _mm_store_si128 :: #force_inline proc "c" (mem_addr: ^__m128i, a: __m128i) {
} }
@(enable_target_feature="sse2") @(enable_target_feature="sse2")
_mm_storeu_si128 :: #force_inline proc "c" (mem_addr: ^__m128i, a: __m128i) { _mm_storeu_si128 :: #force_inline proc "c" (mem_addr: ^__m128i, a: __m128i) {
storeudq(mem_addr, a) intrinsics.unaligned_store(mem_addr, a)
} }
@(enable_target_feature="sse2") @(enable_target_feature="sse2")
_mm_storel_epi64 :: #force_inline proc "c" (mem_addr: ^__m128i, a: __m128i) { _mm_storel_epi64 :: #force_inline proc "c" (mem_addr: ^__m128i, a: __m128i) {
@@ -1178,8 +1185,6 @@ foreign _ {
cvttsd2si :: proc(a: __m128d) -> i32 --- cvttsd2si :: proc(a: __m128d) -> i32 ---
@(link_name="llvm.x86.sse2.cvttps2dq") @(link_name="llvm.x86.sse2.cvttps2dq")
cvttps2dq :: proc(a: __m128) -> i32x4 --- cvttps2dq :: proc(a: __m128) -> i32x4 ---
@(link_name="llvm.x86.sse2.storeu.dq")
storeudq :: proc(mem_addr: rawptr, a: __m128i) ---
@(link_name="llvm.x86.sse2.storeu.pd") @(link_name="llvm.x86.sse2.storeu.pd")
storeupd :: proc(mem_addr: rawptr, a: __m128d) --- storeupd :: proc(mem_addr: rawptr, a: __m128d) ---