a3d2d34e84
When constructing vectors from elements, use poison instead of undef as the base value. These literals always initialize all elements (padding the remainder with zero), so that the choice of base value does not affect semantics.
60 lines
2.8 KiB
C
60 lines
2.8 KiB
C
// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +f16c -emit-llvm -ffp-exception-behavior=strict -o - -Wall -Werror | FileCheck %s
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#include <immintrin.h>
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float test_cvtsh_ss(unsigned short a) {
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// CHECK-LABEL: test_cvtsh_ss
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// CHECK: insertelement <8 x i16> poison, i16 %{{.*}}, i32 0
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 1
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 2
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 3
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 4
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 5
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 6
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// CHECK: insertelement <8 x i16> %{{.*}}, i16 0, i32 7
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// CHECK: shufflevector <8 x i16> %{{.*}}, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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// CHECK: call <4 x float> @llvm.experimental.constrained.fpext.v4f32.v4f16(<4 x half> %{{.*}}, metadata !"fpexcept.strict")
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// CHECK: extractelement <4 x float> %{{.*}}, i32 0
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return _cvtsh_ss(a);
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}
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unsigned short test_cvtss_sh(float a) {
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// CHECK-LABEL: test_cvtss_sh
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// CHECK: insertelement <4 x float> poison, float %{{.*}}, i32 0
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// CHECK: call float @llvm.experimental.constrained.sitofp.f32.i32(i32 0, metadata !"round.tonearest", metadata !"fpexcept.strict")
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// CHECK: insertelement <4 x float> %{{.*}}, float %{{.*}}, i32 1
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// CHECK: call float @llvm.experimental.constrained.sitofp.f32.i32(i32 0, metadata !"round.tonearest", metadata !"fpexcept.strict")
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// CHECK: insertelement <4 x float> %{{.*}}, float %{{.*}}, i32 2
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// CHECK: call float @llvm.experimental.constrained.sitofp.f32.i32(i32 0, metadata !"round.tonearest", metadata !"fpexcept.strict")
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// CHECK: insertelement <4 x float> %{{.*}}, float %{{.*}}, i32 3
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// CHECK: call <8 x i16> @llvm.x86.vcvtps2ph.128(<4 x float> %{{.*}}, i32 0)
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// CHECK: extractelement <8 x i16> %{{.*}}, i32 0
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return _cvtss_sh(a, 0);
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}
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__m128 test_mm_cvtph_ps(__m128i a) {
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// CHECK-LABEL: test_mm_cvtph_ps
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// CHECK: shufflevector <8 x i16> %{{.*}}, <8 x i16> poison, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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// CHECK: call <4 x float> @llvm.experimental.constrained.fpext.v4f32.v4f16(<4 x half> %{{.*}}, metadata !"fpexcept.strict")
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return _mm_cvtph_ps(a);
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}
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__m256 test_mm256_cvtph_ps(__m128i a) {
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// CHECK-LABEL: test_mm256_cvtph_ps
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// CHECK: call <8 x float> @llvm.experimental.constrained.fpext.v8f32.v8f16(<8 x half> %{{.*}}, metadata !"fpexcept.strict")
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return _mm256_cvtph_ps(a);
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}
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__m128i test_mm_cvtps_ph(__m128 a) {
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// CHECK-LABEL: test_mm_cvtps_ph
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// CHECK: call <8 x i16> @llvm.x86.vcvtps2ph.128(<4 x float> %{{.*}}, i32 0)
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return _mm_cvtps_ph(a, 0);
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}
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__m128i test_mm256_cvtps_ph(__m256 a) {
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// CHECK-LABEL: test_mm256_cvtps_ph
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// CHECK: call <8 x i16> @llvm.x86.vcvtps2ph.256(<8 x float> %{{.*}}, i32 0)
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return _mm256_cvtps_ph(a, 0);
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}
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