File: phi-opt-36.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A14.2.rel1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,099,328 kB
  • sloc: cpp: 3,627,108; ansic: 2,571,498; ada: 834,230; f90: 235,082; makefile: 79,231; asm: 74,984; xml: 51,692; exp: 39,736; sh: 33,298; objc: 15,629; python: 15,069; fortran: 14,429; pascal: 7,003; awk: 5,070; perl: 3,106; ml: 285; lisp: 253; lex: 204; haskell: 135
file content (51 lines) | stat: -rw-r--r-- 946 bytes parent folder | download 
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
 
/* { dg-options "-O2 -fdump-tree-phiopt" } */

unsigned f0(int A)
{
  unsigned t = A;
//     A == 0? A : -A    same as -A
  if (A == 0)  return t;
  return -t;
}

unsigned f1(int A)
{
  unsigned t = A;
//     A != 0? A : -A    same as A
  if (A != 0)  return t;
  return -t;
}
unsigned f2(int A)
{
  unsigned t = A;
//     A >= 0? A : -A    same as abs (A)
  if (A >= 0)  return t;
  return -t;
}
unsigned f3(int A)
{
  unsigned t = A;
//     A > 0?  A : -A    same as abs (A)
  if (A > 0)  return t;
  return -t;
}
unsigned f4(int A)
{
  unsigned t = A;
//     A <= 0? A : -A    same as -abs (A)
  if (A <= 0)  return t;
  return -t;
}
unsigned f5(int A)
{
  unsigned t = A;
//     A < 0?  A : -A    same as -abs (A)
  if (A < 0)  return t;
  return -t;
}

/* f4 and f5 are not allowed to be optimized in early phi-opt. */
/* { dg-final { scan-tree-dump-times "if " 2 "phiopt1" } } */
/* { dg-final { scan-tree-dump-not "if " "phiopt2" } } */