_mm_cvtepi16_epi8

moorabbit · moorabbit · commit cbc6c9f4cec8 · 2025-09-14T18:27:27.000-04:00
diff --git a/clang/lib/Headers/avx512vlbwintrin.h b/clang/lib/Headers/avx512vlbwintrin.h
@@ -1440,8 +1440,8 @@ _mm256_maskz_cvtusepi16_epi8 (__mmask16 __M, __m256i __A) {
                 __M);
 }
 
-static __inline__ __m128i __DEFAULT_FN_ATTRS128
-_mm_cvtepi16_epi8 (__m128i __A) {
+static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
+_mm_cvtepi16_epi8(__m128i __A) {
   return (__m128i)__builtin_shufflevector(
       __builtin_convertvector((__v8hi)__A, __v8qi),
       (__v8qi){0, 0, 0, 0, 0, 0, 0, 0}, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
diff --git a/clang/test/CodeGen/X86/avx512vlbw-builtins.c b/clang/test/CodeGen/X86/avx512vlbw-builtins.c
@@ -1928,6 +1928,8 @@ __m128i test_mm_cvtepi16_epi8(__m128i __A) {
   return _mm_cvtepi16_epi8(__A); 
 }
 
+TEST_CONSTEXPR(match_v16qi(_mm_cvtepi16_epi8((__m128i)(__v8hi){1, 2, 3, 4, 5, 6, 7, 8}), 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0));
+
 __m128i test_mm_mask_cvtepi16_epi8(__m128i __O, __mmask8 __M, __m128i __A) {
   // CHECK-LABEL: test_mm_mask_cvtepi16_epi8
   // CHECK: @llvm.x86.avx512.mask.pmov.wb.128

Original file line number	Diff line number	Diff line change
`@@ -1928,6 +1928,8 @@ __m128i test_mm_cvtepi16_epi8(__m128i __A) {`
`1928`	`1928`	`return _mm_cvtepi16_epi8(__A);`
`1929`	`1929`	`}`
`1930`	`1930`
	`1931`	`+TEST_CONSTEXPR(match_v16qi(_mm_cvtepi16_epi8((__m128i)(__v8hi){1, 2, 3, 4, 5, 6, 7, 8}), 1, 2, 3, 4, 5, 6, 7, 8, 0, 0, 0, 0, 0, 0, 0, 0));`
	`1932`	`+`
`1931`	`1933`	`__m128i test_mm_mask_cvtepi16_epi8(__m128i __O, __mmask8 __M, __m128i __A) {`
`1932`	`1934`	`// CHECK-LABEL: test_mm_mask_cvtepi16_epi8`
`1933`	`1935`	`// CHECK: @llvm.x86.avx512.mask.pmov.wb.128`