[clang] [X86][ByteCode] Allow PSHUFB intrinsics to be used in constexpr #156612 (PR #163148)

[via cfe-commits]

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@@ -110,6 +110,8 @@ __m128i test_mm_shuffle_epi8(__m128i a, __m128i b) {
   return _mm_shuffle_epi8(a, b);
 }
 
+TEST_CONSTEXPR(match_v16qi(_mm_shuffle_epi8((__m128i)(__v16qi){0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,char(-15)}, (__m128i)(__v16qi){15,char(-14),13,12,11,10,9,8,7,6,5,4,3,2,1,0}), -15,0,13,12,11,10,9,8,7,6,5,4,3,2,1,0));
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shashank1545 wrote:

Changed the types and added more zeroing elements in the tests.

https://github.com/llvm/llvm-project/pull/163148