_mm256_mask_cvtepi16_epi8

moorabbit · moorabbit · commit 87972d4b11fc · 2025-09-15T10:17:41.000-04:00
diff --git a/clang/lib/Headers/avx512vlbwintrin.h b/clang/lib/Headers/avx512vlbwintrin.h
@@ -1486,8 +1486,8 @@ _mm256_cvtepi16_epi8(__m256i __A) {
   return (__m128i)__builtin_convertvector((__v16hi) __A, __v16qi);
 }
 
-static __inline__ __m128i __DEFAULT_FN_ATTRS256
-_mm256_mask_cvtepi16_epi8 (__m128i __O, __mmask16 __M, __m256i __A) {
+static __inline__ __m128i __DEFAULT_FN_ATTRS256_CONSTEXPR
+_mm256_mask_cvtepi16_epi8(__m128i __O, __mmask16 __M, __m256i __A) {
   return (__m128i)__builtin_ia32_selectb_128((__mmask16)__M,
                                              (__v16qi)_mm256_cvtepi16_epi8(__A),
                                              (__v16qi)__O);
diff --git a/clang/test/CodeGen/X86/avx512vlbw-builtins.c b/clang/test/CodeGen/X86/avx512vlbw-builtins.c
@@ -1957,6 +1957,8 @@ __m128i test_mm256_mask_cvtepi16_epi8(__m128i __O, __mmask16 __M, __m256i __A) {
   return _mm256_mask_cvtepi16_epi8(__O, __M, __A); 
 }
 
+TEST_CONSTEXPR(match_v16qi(_mm256_mask_cvtepi16_epi8(_mm_set1_epi8(-177), /*1010 0011 0011 0101=*/0xa335, (__m256i)(__v16hi){1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}), 1, -177, 3, -177, 5, 6, -177, -177, 9, 10, -177, -177, -177, 14, -177, 16));
+
 __m128i test_mm256_maskz_cvtepi16_epi8(__mmask16 __M, __m256i __A) {
   // CHECK-LABEL: test_mm256_maskz_cvtepi16_epi8
   // CHECK: trunc <16 x i16> %{{.*}} to <16 x i8>

Original file line number	Diff line number	Diff line change
`@@ -1957,6 +1957,8 @@ __m128i test_mm256_mask_cvtepi16_epi8(__m128i __O, __mmask16 __M, __m256i __A) {`
`1957`	`1957`	`return _mm256_mask_cvtepi16_epi8(__O, __M, __A);`
`1958`	`1958`	`}`
`1959`	`1959`
	`1960`	`+TEST_CONSTEXPR(match_v16qi(_mm256_mask_cvtepi16_epi8(_mm_set1_epi8(-177), /1010 0011 0011 0101=/0xa335, (__m256i)(__v16hi){1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}), 1, -177, 3, -177, 5, 6, -177, -177, 9, 10, -177, -177, -177, 14, -177, 16));`
	`1961`	`+`
`1960`	`1962`	`__m128i test_mm256_maskz_cvtepi16_epi8(__mmask16 __M, __m256i __A) {`
`1961`	`1963`	`// CHECK-LABEL: test_mm256_maskz_cvtepi16_epi8`
`1962`	`1964`	`// CHECK: trunc <16 x i16> %{{.*}} to <16 x i8>`