[X86] avx512bw-builtins.c - avoid _mm256_setr_epi8 inside constexpr tests

Avoid nested intrinsics in constexpr tests - use __32qs instead to work correctly with -fno-signed-char tests

Author: RKSimon

clang/test/CodeGen/X86/avx512bw-builtins.c

@@ -1561,7 +1561,7 @@ __m512i test_mm512_cvtepi8_epi16(__m256i __A) {
   return _mm512_cvtepi8_epi16(__A); 
 }
 
-TEST_CONSTEXPR(match_v32hi(_mm512_cvtepi8_epi16(_mm256_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28)), -3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28));
+TEST_CONSTEXPR(match_v32hi(_mm512_cvtepi8_epi16((__m256i)(__v32qs){-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28}), -3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28));
 
 __m512i test_mm512_mask_cvtepi8_epi16(__m512i __W, __mmask32 __U, __m256i __A) {
   // CHECK-LABEL: @test_mm512_mask_cvtepi8_epi16
@@ -1583,7 +1583,7 @@ __m512i test_mm512_cvtepu8_epi16(__m256i __A) {
   return _mm512_cvtepu8_epi16(__A); 
 }
 
-TEST_CONSTEXPR(match_v32hi(_mm512_cvtepu8_epi16(_mm256_setr_epi8(-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28)), 253, 2, 255, 0, 1, 254, 3, 252, 5, 250, 7, 248, 9, 246, 11, 244, 13, 242, 15, 240, 17, 238, 19, 236, 21, 234, 23, 232, 25, 230, 27, 228));
+TEST_CONSTEXPR(match_v32hi(_mm512_cvtepu8_epi16((__m256i)(__v32qs){-3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7, -8, 9, -10, 11, -12, 13, -14, 15, -16, 17, -18, 19, -20, 21, -22, 23, -24, 25, -26, 27, -28}), 253, 2, 255, 0, 1, 254, 3, 252, 5, 250, 7, 248, 9, 246, 11, 244, 13, 242, 15, 240, 17, 238, 19, 236, 21, 234, 23, 232, 25, 230, 27, 228));
 
 __m512i test_mm512_mask_cvtepu8_epi16(__m512i __W, __mmask32 __U, __m256i __A) {
   // CHECK-LABEL: @test_mm512_mask_cvtepu8_epi16