File: fp-function-attrs.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (44 lines) | stat: -rw-r--r-- 1,779 bytes parent folder | download | duplicates (4)
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
// RUN: %clang_cc1 -triple x86_64-linux-gnu -ffast-math -ffp-contract=fast -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 %a, float noundef %b, float noundef %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 %a, float noundef %b, float noundef %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 %a, float noundef %b, float noundef %c) [[NOREASSOC_ATTRS:#[0-9]+]]
// CHECK: fadd nnan ninf nsz arcp contract afn float {{%.+}}, {{%.+}}
// CHECK: fadd fast 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 [[NOREASSOC_ATTRS]] = { {{.*}}"no-infs-fp-math"="true" {{.*}}"no-nans-fp-math"="true" "no-signed-zeros-fp-math"="true" {{.*}}"unsafe-fp-math"="false"{{.*}} }