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7d6c2e1811
Builtin floating-point number classification functions:
- __builtin_isnan,
- __builtin_isinf,
- __builtin_finite, and
- __builtin_isnormal
now are implemented using `llvm.is_fpclass`.
This change makes the target callback `TargetCodeGenInfo::testFPKind`
unneeded. It is preserved in this change and should be removed later.
Differential Revision: https://reviews.llvm.org/D112932
57 lines
3.7 KiB
C
57 lines
3.7 KiB
C
// RUN: %clang_cc1 -emit-llvm -triple x86_64-windows-pc -ffp-exception-behavior=maytrap -o - %s | FileCheck %s --check-prefixes=CHECK,FP16
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// RUN: %clang_cc1 -emit-llvm -triple ppc64-be -ffp-exception-behavior=maytrap -o - %s | FileCheck %s --check-prefixes=CHECK,NOFP16
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// test to ensure that these builtins don't do the variadic promotion of float->double.
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// Test that the constrained intrinsics are picking up the exception
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// metadata from the AST instead of the global default from the command line.
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#pragma float_control(except, on)
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// CHECK-LABEL: @test_half
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void test_half(__fp16 *H, __fp16 *H2) {
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(void)__builtin_isgreater(*H, *H2);
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// FP16: call float @llvm.experimental.constrained.fpext.f32.f16(half %{{.*}}, metadata !"fpexcept.strict")
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// FP16: call float @llvm.experimental.constrained.fpext.f32.f16(half %{{.*}}, metadata !"fpexcept.strict")
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// CHECK: call i1 @llvm.experimental.constrained.fcmp.f32(float %{{.*}}, float %{{.*}}, metadata !"ogt", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_isinf(*H);
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// NOFP16: [[LDADDR:%.*]] = load ptr, ptr %{{.*}}, align 8
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// NOFP16-NEXT: [[IHALF:%.*]] = load i16, ptr [[LDADDR]], align 2
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// NOFP16-NEXT: [[CONV:%.*]] = call float @llvm.convert.from.fp16.f32(i16 [[IHALF]])
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// NOFP16-NEXT: [[RES1:%.*]] = call i1 @llvm.is.fpclass.f32(float [[CONV]], i32 516)
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// NOFP16-NEXT: zext i1 [[RES1]] to i32
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// FP16: [[LDADDR:%.*]] = load ptr, ptr %{{.*}}, align 8
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// FP16-NEXT: [[HALF:%.*]] = load half, ptr [[LDADDR]], align 2
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// FP16-NEXT: [[RES1:%.*]] = call i1 @llvm.is.fpclass.f16(half [[HALF]], i32 516)
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// FP16-NEXT: zext i1 [[RES1]] to i32
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}
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// CHECK-LABEL: @test_mixed
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void test_mixed(double d1, float f2) {
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(void)__builtin_isgreater(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"ogt", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_isgreaterequal(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"oge", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_isless(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"olt", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_islessequal(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"ole", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_islessgreater(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"one", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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(void)__builtin_isunordered(d1, f2);
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// CHECK: [[CONV:%.*]] = call double @llvm.experimental.constrained.fpext.f64.f32(float %{{.*}}, metadata !"fpexcept.strict")
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// CHECK-NEXT: call i1 @llvm.experimental.constrained.fcmp.f64(double %{{.*}}, double [[CONV]], metadata !"uno", metadata !"fpexcept.strict")
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// CHECK-NEXT: zext i1
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}
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