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llvm-project/clang/test/CodeGen/sse-builtins-constrained-cmp.c
Craig Topper a10cec02f7 [X86] Improve X86 cmpps/cmppd/cmpss/cmpsd intrinsics with strictfp 
The constrained fcmp intrinsics don't allow the TRUE/FALSE predicates.
Using them will assert. To workaround this I'm emitting the old X86 specific intrinsics that were never removed from the backend when we switched to using fcmp in IR. We have no way to mark them as being strict, but that's true of all target specific intrinsics so doesn't seem like we need to solve that here.

I've also added support for selecting between signaling and quiet.

Still need to support SAE which will require using a target specific
intrinsic. Also need to fix masking to not use an AND instruction
after the compare.

Differential Revision: https://reviews.llvm.org/D72906
2020-01-29 15:52:11 -08:00

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// RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +sse -emit-llvm -ffp-exception-behavior=strict -o - -Wall -Werror | FileCheck %s
#include <immintrin.h>
__m128 test_mm_cmpeq_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpeq_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmp.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"oeq", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpeq_ps(__a, __b);
}
__m128 test_mm_cmpge_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpge_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"ole", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpge_ps(__a, __b);
}
__m128 test_mm_cmpgt_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpgt_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"olt", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpgt_ps(__a, __b);
}
__m128 test_mm_cmple_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmple_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"ole", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmple_ps(__a, __b);
}
__m128 test_mm_cmplt_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmplt_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"olt", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmplt_ps(__a, __b);
}
__m128 test_mm_cmpneq_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpneq_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmp.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"une", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpneq_ps(__a, __b);
}
__m128 test_mm_cmpnge_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpnge_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"ugt", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpnge_ps(__a, __b);
}
__m128 test_mm_cmpngt_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpngt_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"uge", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpngt_ps(__a, __b);
}
__m128 test_mm_cmpnle_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpnle_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"ugt", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpnle_ps(__a, __b);
}
__m128 test_mm_cmpnlt_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpnlt_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmps.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"uge", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpnlt_ps(__a, __b);
}
__m128 test_mm_cmpord_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpord_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmp.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"ord", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpord_ps(__a, __b);
}
__m128 test_mm_cmpunord_ps(__m128 __a, __m128 __b) {
// CHECK-LABEL: @test_mm_cmpunord_ps
// CHECK: [[CMP:%.*]] = call <4 x i1> @llvm.experimental.constrained.fcmp.v4f32(<4 x float> %{{.*}}, <4 x float> %{{.*}}, metadata !"uno", metadata !"fpexcept.strict")
// CHECK-NEXT: [[SEXT:%.*]] = sext <4 x i1> [[CMP]] to <4 x i32>
// CHECK-NEXT: [[BC:%.*]] = bitcast <4 x i32> [[SEXT]] to <4 x float>
// CHECK-NEXT: ret <4 x float> [[BC]]
return _mm_cmpunord_ps(__a, __b);
}
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