[clang] [llvm] [X86][AVX10.2] Support saturated converts (PR #102592)

[Phoebe Wang via cfe-commits]

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@@ -0,0 +1,184 @@
+// RUN: %clang_cc1 -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-unknown-unknown -target-feature +avx10.2-512 -emit-llvm -o - | FileCheck %s
+
+#include <immintrin.h>
+#include <stddef.h>
+
+long long test_mm_cvttssd_si64(__m128d __A) {
+  // CHECK-LABEL: @test_mm_cvttssd_si64(
+  // CHECK: @llvm.x86.avx512.vcvttssd2si64(<2 x double>
+  return _mm_cvtt_roundssd_si64(__A, _MM_FROUND_NO_EXC);
+}
+
+long long test_mm_cvttssd_i64(__m128d __A) {
+  // CHECK-LABEL: @test_mm_cvttssd_i64(
+  // CHECK: @llvm.x86.avx512.vcvttssd2si64(<2 x double>
+  return _mm_cvtt_roundssd_i64(__A, _MM_FROUND_NO_EXC);
+}
+
+unsigned long long test_mm_cvttssd_u64(__m128d __A) {
+  // CHECK-LABEL: @test_mm_cvttssd_u64(
+  // CHECK: @llvm.x86.avx512.vcvttssd2usi64(<2 x double>
+  return _mm_cvtt_roundssd_u64(__A, _MM_FROUND_NO_EXC);
+}
+
+float test_mm_cvttsss_i64(__m128 __A) {
+  // CHECK-LABEL: @test_mm_cvttsss_i64(
+  // CHECK: @llvm.x86.avx512.vcvttsss2si64(<4 x float>
+  return _mm_cvtt_roundsss_i64(__A, _MM_FROUND_NO_EXC);
+}
+
+long long test_mm_cvttsss_si64(__m128 __A) {
+  // CHECK-LABEL: @test_mm_cvttsss_si64(
+  // CHECK: @llvm.x86.avx512.vcvttsss2si64(<4 x float>
+  return _mm_cvtt_roundsss_si64(__A, _MM_FROUND_NO_EXC);
+}
+
+unsigned long long test_mm_cvttsss_u64(__m128 __A) {
+  // CHECK-LABEL: @test_mm_cvttsss_u64(
+  // CHECK: @llvm.x86.avx512.vcvttsss2usi64(<4 x float>
+  return _mm_cvtt_roundsss_u64(__A, _MM_FROUND_NO_EXC);
+}
+
+__m512i test_mm512_cvttspd_epi64(__m512d A) {
+  // CHECK-LABEL: test_mm512_cvttspd_epi64
+  // CHECK: @llvm.x86.avx512.mask.vcvttpd2qqs.round.512(<8 x double>
+  return _mm512_cvttspd_epi64(A);
+}
+
+__m512i test_mm512_mask_cvttspd_epi64(__m512i W, __mmask8 U, __m512d A) {
+  // CHECK-LABEL: test_mm512_mask_cvttspd_epi64
+  // CHECK: @llvm.x86.avx512.mask.vcvttpd2qqs.round.512(<8 x double>
+  return _mm512_mask_cvttspd_epi64(W, U, A);
+}
+
+__m512i test_mm512_maskz_cvttspd_epi64(__mmask8 U, __m512d A) {
+  // CHECK-LABEL: test_mm512_maskz_cvttspd_epi64
+  // CHECK: @llvm.x86.avx512.mask.vcvttpd2qqs.round.512(<8 x double>
+  return _mm512_maskz_cvttspd_epi64(U, A);
+}
+
+__m512i test_mm512_cvtts_roundpd_epi64(__m512d A) {
+  // CHECK-LABEL: test_mm512_cvtts_roundpd_epi64
+  // CHECK: @llvm.x86.avx512.mask.vcvttpd2qqs.round.512(<8 x double>
+  return _mm512_cvtts_roundpd_epi64(A, _MM_FROUND_NEARBYINT);
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phoebewang wrote:

`_MM_FROUND_NEARBYINT` is not correct. The value should be either `_MM_FROUND_RAISE_EXC` or `_MM_FROUND_NO_EXC`.

https://github.com/llvm/llvm-project/pull/102592