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dd81810554
Set this on any source level floating-point type argument, return value, call return or outgoing parameter which is lowered to a valid IR type for the attribute. Currently this isn't applied to emitted intrinsics since those don't go through ABI code.
59 lines
2.5 KiB
C++
59 lines
2.5 KiB
C++
// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffast-math -ffp-contract=fast -emit-llvm -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffast-math -ffp-contract=fast-honor-pragmas -emit-llvm -o - %s | FileCheck %s
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float test_default(float a, float b, float c) {
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float tmp = a;
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tmp += b;
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tmp += c;
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return tmp;
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}
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// CHECK: define{{.*}} float @_Z12test_defaultfff(float noundef nofpclass(nan inf) %a, float noundef nofpclass(nan inf) %b, float noundef nofpclass(nan inf) %c) [[FAST_ATTRS:#[0-9]+]]
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// CHECK: fadd fast float {{%.+}}, {{%.+}}
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// CHECK: fadd fast float {{%.+}}, {{%.+}}
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float test_precise_on_pragma(float a, float b, float c) {
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float tmp = a;
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{
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#pragma float_control(precise, on)
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tmp += b;
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}
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tmp += c;
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return tmp;
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}
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// CHECK: define{{.*}} float @_Z22test_precise_on_pragmafff(float noundef nofpclass(nan inf) %a, float noundef nofpclass(nan inf) %b, float noundef nofpclass(nan inf) %c) [[PRECISE_ATTRS:#[0-9]+]]
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// CHECK: fadd float {{%.+}}, {{%.+}}
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// CHECK: fadd fast float {{%.+}}, {{%.+}}
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float test_reassociate_off_pragma(float a, float b, float c) {
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float tmp = a;
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{
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#pragma clang fp reassociate(off)
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tmp += b;
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}
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tmp += c;
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return tmp;
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}
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// CHECK: define{{.*}} float @_Z27test_reassociate_off_pragmafff(float noundef nofpclass(nan inf) %a, float noundef nofpclass(nan inf) %b, float noundef nofpclass(nan inf) %c) [[NO_UNSAFE_ATTRS:#[0-9]+]]
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// CHECK: fadd nnan ninf nsz arcp contract afn float {{%.+}}, {{%.+}}
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// CHECK: fadd fast float {{%.+}}, {{%.+}}
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float test_contract_on_pragma(float a, float b, float c) {
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float tmp = a * b;
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{
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#pragma clang fp contract(on)
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tmp += c;
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}
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return tmp;
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}
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// CHECK: define{{.*}} float @_Z23test_contract_on_pragmafff(float noundef nofpclass(nan inf) %a, float noundef nofpclass(nan inf) %b, float noundef nofpclass(nan inf) %c) [[NO_UNSAFE_ATTRS:#[0-9]+]]
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// CHECK: fmul fast float {{%.+}}, {{%.+}}
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// CHECK: fadd reassoc nnan ninf nsz arcp afn float {{%.+}}, {{%.+}}
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// CHECK: attributes [[FAST_ATTRS]] = { {{.*}}"no-infs-fp-math"="true" {{.*}}"no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" {{.*}}"unsafe-fp-math"="true"{{.*}} }
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// CHECK: attributes [[PRECISE_ATTRS]] = { {{.*}}"no-infs-fp-math"="false" {{.*}}"no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" {{.*}}"unsafe-fp-math"="false"{{.*}} }
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// CHECK: attributes [[NO_UNSAFE_ATTRS]] = { {{.*}}"no-infs-fp-math"="true" {{.*}}"no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" {{.*}}"unsafe-fp-math"="false"{{.*}} }
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