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[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 mask broadcast intrinsics to be used in constexpr #163475

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Merged
merged 3 commits into from
Oct 15, 2025
Merged

[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow AVX512 mask broadcast intrinsics to be used in constexpr #163475

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070790e
[Clang] VectorExprEvaluator::VisitCallExpr / InterpretBuiltin - allow…
kimsh02 Oct 14, 2025
295bc7f
Clang-format
kimsh02 Oct 15, 2025
d9cd7cb
Merge branch 'main' into x86-mask-broadcast
RKSimon Oct 15, 2025
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13 changes: 5 additions & 8 deletions clang/lib/Headers/avx512cdintrin.h
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Original file line number Diff line number Diff line change
Expand Up @@ -109,17 +109,14 @@ _mm512_maskz_lzcnt_epi64(__mmask8 __U, __m512i __A) {
(__v8di)_mm512_setzero_si512());
}

static __inline__ __m512i __DEFAULT_FN_ATTRS
_mm512_broadcastmb_epi64 (__mmask8 __A)
{
static __inline__ __m512i __DEFAULT_FN_ATTRS_CONSTEXPR
_mm512_broadcastmb_epi64(__mmask8 __A) {
return (__m512i) _mm512_set1_epi64((long long) __A);
}

static __inline__ __m512i __DEFAULT_FN_ATTRS
_mm512_broadcastmw_epi32 (__mmask16 __A)
{
return (__m512i) _mm512_set1_epi32((int) __A);

static __inline__ __m512i __DEFAULT_FN_ATTRS_CONSTEXPR
_mm512_broadcastmw_epi32(__mmask16 __A) {
return (__m512i)_mm512_set1_epi32((int)__A);
}

#undef __DEFAULT_FN_ATTRS
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21 changes: 8 additions & 13 deletions clang/lib/Headers/avx512vlcdintrin.h
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Expand Up @@ -29,31 +29,26 @@
#define __DEFAULT_FN_ATTRS128_CONSTEXPR __DEFAULT_FN_ATTRS128
#endif

static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_broadcastmb_epi64 (__mmask8 __A)
{
static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
_mm_broadcastmb_epi64(__mmask8 __A) {
return (__m128i) _mm_set1_epi64x((long long) __A);
}

static __inline__ __m256i __DEFAULT_FN_ATTRS256
_mm256_broadcastmb_epi64 (__mmask8 __A)
{
static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
_mm256_broadcastmb_epi64(__mmask8 __A) {
return (__m256i) _mm256_set1_epi64x((long long)__A);
}

static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_broadcastmw_epi32 (__mmask16 __A)
{
static __inline__ __m128i __DEFAULT_FN_ATTRS128_CONSTEXPR
_mm_broadcastmw_epi32(__mmask16 __A) {
return (__m128i) _mm_set1_epi32((int)__A);
}

static __inline__ __m256i __DEFAULT_FN_ATTRS256
_mm256_broadcastmw_epi32 (__mmask16 __A)
{
static __inline__ __m256i __DEFAULT_FN_ATTRS256_CONSTEXPR
_mm256_broadcastmw_epi32(__mmask16 __A) {
return (__m256i) _mm256_set1_epi32((int)__A);
}


static __inline__ __m128i __DEFAULT_FN_ATTRS128
_mm_conflict_epi64 (__m128i __A)
{
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4 changes: 4 additions & 0 deletions clang/test/CodeGen/X86/avx512cd-builtins.c
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Expand Up @@ -125,6 +125,8 @@ __m512i test_mm512_broadcastmb_epi64(__m512i a, __m512i b) {
// CHECK: insertelement <8 x i64> %{{.*}}, i64 %{{.*}}, i32 7
return _mm512_broadcastmb_epi64(_mm512_cmpeq_epu64_mask ( a, b));
}
TEST_CONSTEXPR(match_v8di(_mm512_broadcastmb_epi64((__mmask8)(0)), 0,0,0,0, 0,0,0,0));
TEST_CONSTEXPR(match_v8di(_mm512_broadcastmb_epi64((__mmask8)(0xab)), 0xab,0xab,0xab,0xab, 0xab,0xab,0xab,0xab));

__m512i test_mm512_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK-LABEL: test_mm512_broadcastmw_epi32
Expand All @@ -148,3 +150,5 @@ __m512i test_mm512_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK: insertelement <16 x i32> %{{.*}}, i32 %{{.*}}
return _mm512_broadcastmw_epi32(_mm512_cmpeq_epi32_mask ( a, b));
}
TEST_CONSTEXPR(match_v16si(_mm512_broadcastmw_epi32((__mmask16)(0xff)), 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff, 0xff,0xff,0xff,0xff));
TEST_CONSTEXPR(match_v16si(_mm512_broadcastmw_epi32((__mmask16)(0x0FA1L)), 0x0FA1L,0x0FA1L,0x0FA1L,0x0FA1L, 0x0FA1L,0x0FA1L,0x0FA1L,0x0FA1L, 0x0FA1L,0x0FA1L,0x0FA1L,0x0FA1L, 0x0FA1L,0x0FA1L,0x0FA1L,0x0FA1L));
4 changes: 4 additions & 0 deletions clang/test/CodeGen/X86/avx512vlcd-builtins.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@ __m128i test_mm_broadcastmb_epi64(__m128i a,__m128i b) {
// CHECK: insertelement <2 x i64> %{{.*}}, i64 %{{.*}}, i32 1
return _mm_broadcastmb_epi64(_mm_cmpeq_epi32_mask (a, b));
}
TEST_CONSTEXPR(match_v2du(_mm_broadcastmb_epi64((__mmask8)(76)), 76, 76));

__m256i test_mm256_broadcastmb_epi64(__m256i a, __m256i b) {
// CHECK-LABEL: test_mm256_broadcastmb_epi64
Expand All @@ -32,6 +33,7 @@ __m256i test_mm256_broadcastmb_epi64(__m256i a, __m256i b) {
// CHECK: insertelement <4 x i64> %{{.*}}, i64 %{{.*}}, i32 3
return _mm256_broadcastmb_epi64(_mm256_cmpeq_epi64_mask ( a, b));
}
TEST_CONSTEXPR(match_v4di(_mm256_broadcastmb_epi64((__mmask8)(67)), 67, 67, 67, 67));

__m128i test_mm_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK-LABEL: test_mm_broadcastmw_epi32
Expand All @@ -43,6 +45,7 @@ __m128i test_mm_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK: insertelement <4 x i32> %{{.*}}, i32 %{{.*}}, i32 3
return _mm_broadcastmw_epi32(_mm512_cmpeq_epi32_mask ( a, b));
}
TEST_CONSTEXPR(match_v4su(_mm_broadcastmw_epi32((__mmask16)(0xbabe)), 0xbabe, 0xbabe, 0xbabe, 0xbabe));

__m256i test_mm256_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK-LABEL: test_mm256_broadcastmw_epi32
Expand All @@ -58,6 +61,7 @@ __m256i test_mm256_broadcastmw_epi32(__m512i a, __m512i b) {
// CHECK: insertelement <8 x i32> %{{.*}}, i32 %{{.*}}, i32 7
return _mm256_broadcastmw_epi32(_mm512_cmpeq_epi32_mask ( a, b));
}
TEST_CONSTEXPR(match_v8si(_mm256_broadcastmw_epi32((__mmask16)(0xcafe)), 0xcafe,0xcafe,0xcafe,0xcafe, 0xcafe,0xcafe,0xcafe,0xcafe));

__m128i test_mm_conflict_epi64(__m128i __A) {
// CHECK-LABEL: test_mm_conflict_epi64
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