_mm256_cvtepi16_epi8

moorabbit · moorabbit · commit c43269273ab8 · 2025-09-15T10:12:11.000-04:00
diff --git a/clang/lib/Headers/avx512vlbwintrin.h b/clang/lib/Headers/avx512vlbwintrin.h
@@ -1481,8 +1481,8 @@ _mm_mask_cvtusepi16_storeu_epi8 (void * __P, __mmask8 __M, __m128i __A)
   __builtin_ia32_pmovuswb128mem_mask ((__v16qi *) __P, (__v8hi) __A, __M);
 }
 
-static __inline__ __m128i __DEFAULT_FN_ATTRS256
-_mm256_cvtepi16_epi8 (__m256i __A) {
+static __inline__ __m128i __DEFAULT_FN_ATTRS256_CONSTEXPR
+_mm256_cvtepi16_epi8(__m256i __A) {
   return (__m128i)__builtin_convertvector((__v16hi) __A, __v16qi);
 }
 
diff --git a/clang/test/CodeGen/X86/avx512vlbw-builtins.c b/clang/test/CodeGen/X86/avx512vlbw-builtins.c
@@ -1948,6 +1948,8 @@ __m128i test_mm256_cvtepi16_epi8(__m256i __A) {
   return _mm256_cvtepi16_epi8(__A); 
 }
 
+TEST_CONSTEXPR(match_v16qi(_mm256_cvtepi16_epi8((__m256i)(__v16hi){1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16));
+
 __m128i test_mm256_mask_cvtepi16_epi8(__m128i __O, __mmask16 __M, __m256i __A) {
   // CHECK-LABEL: test_mm256_mask_cvtepi16_epi8
   // CHECK: trunc <16 x i16> %{{.*}} to <16 x i8>

Original file line number	Diff line number	Diff line change
`@@ -1481,8 +1481,8 @@ _mm_mask_cvtusepi16_storeu_epi8 (void * __P, __mmask8 __M, __m128i __A)`
`1481`	`1481`	`__builtin_ia32_pmovuswb128mem_mask ((__v16qi *) __P, (__v8hi) __A, __M);`
`1482`	`1482`	`}`
`1483`	`1483`
`1484`		`-static __inline__ __m128i __DEFAULT_FN_ATTRS256`
`1485`		`-_mm256_cvtepi16_epi8 (__m256i __A) {`
	`1484`	`+static __inline__ __m128i __DEFAULT_FN_ATTRS256_CONSTEXPR`
	`1485`	`+_mm256_cvtepi16_epi8(__m256i __A) {`
`1486`	`1486`	`return (__m128i)__builtin_convertvector((__v16hi) __A, __v16qi);`
`1487`	`1487`	`}`
`1488`	`1488`
Original file line number	Diff line number	Diff line change
`@@ -1948,6 +1948,8 @@ __m128i test_mm256_cvtepi16_epi8(__m256i __A) {`
`1948`	`1948`	`return _mm256_cvtepi16_epi8(__A);`
`1949`	`1949`	`}`
`1950`	`1950`
	`1951`	`+TEST_CONSTEXPR(match_v16qi(_mm256_cvtepi16_epi8((__m256i)(__v16hi){1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}), 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16));`
	`1952`	`+`
`1951`	`1953`	`__m128i test_mm256_mask_cvtepi16_epi8(__m128i __O, __mmask16 __M, __m256i __A) {`
`1952`	`1954`	`// CHECK-LABEL: test_mm256_mask_cvtepi16_epi8`
`1953`	`1955`	`// CHECK: trunc <16 x i16> %{{.*}} to <16 x i8>`