================
@@ -124,10 +143,11 @@ _mm_cvtm64_si64(__m64 __m)
/// written to the upper 32 bits of the result.
/// \returns A 64-bit integer vector of [8 x i8] containing the converted
/// values.
-static __inline__ __m64 __DEFAULT_FN_ATTRS
+static __inline__ __m64 __DEFAULT_FN_ATTRS_SSE2
_mm_packs_pi16(__m64 __m1, __m64 __m2)
{
- return (__m64)__builtin_ia32_packsswb((__v4hi)__m1, (__v4hi)__m2);
+ return __extract2_32(__builtin_ia32_packsswb128((__v8hi)__anyext128(__m1),
----------------
phoebewang wrote:
Should it be better to shuffle `__m1` and `__m2` first and then `__trunc64`?
The same for below.
https://github.com/llvm/llvm-project/pull/96540
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