1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffast-math -ffp-contract=fast -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffast-math -ffp-contract=fast-honor-pragmas -emit-llvm -o - %s | FileCheck %s
float test_default(float a, float b, float c) {
float tmp = a;
tmp += b;
tmp += c;
return tmp;
}
// 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]+]]
// CHECK: fadd fast float {{%.+}}, {{%.+}}
// CHECK: fadd fast float {{%.+}}, {{%.+}}
float test_precise_on_pragma(float a, float b, float c) {
float tmp = a;
{
#pragma float_control(precise, on)
tmp += b;
}
tmp += c;
return tmp;
}
// 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]+]]
// CHECK: fadd float {{%.+}}, {{%.+}}
// CHECK: fadd fast float {{%.+}}, {{%.+}}
float test_reassociate_off_pragma(float a, float b, float c) {
float tmp = a;
{
#pragma clang fp reassociate(off)
tmp += b;
}
tmp += c;
return tmp;
}
// 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]+]]
// CHECK: fadd nnan ninf nsz arcp contract afn float {{%.+}}, {{%.+}}
// CHECK: fadd fast float {{%.+}}, {{%.+}}
float test_contract_on_pragma(float a, float b, float c) {
float tmp = a * b;
{
#pragma clang fp contract(on)
tmp += c;
}
return tmp;
}
// 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]+]]
// CHECK: fmul fast float {{%.+}}, {{%.+}}
// CHECK: fadd reassoc nnan ninf nsz arcp afn float {{%.+}}, {{%.+}}
// CHECK: attributes [[FAST_ATTRS]] = { {{.*}}"no-infs-fp-math"="true" {{.*}}"no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" {{.*}}"unsafe-fp-math"="true"{{.*}} }
// CHECK: attributes [[PRECISE_ATTRS]] = { {{.*}}"no-infs-fp-math"="false" {{.*}}"no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" {{.*}}"unsafe-fp-math"="false"{{.*}} }
// 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"{{.*}} }
|
