File: cmpbit-7.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 (28 lines) | stat: -rw-r--r-- 806 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
 
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-forwprop1" } */
/* PR tree-optimization/106164 */
/* PR tree-optimization/111456 */

_Bool f(int a)
{
        _Bool t = a == 3;
        unsigned t1 = a;
        _Bool t2 = t1 >= 3;
        return t | t2;
}

/* Should be able to optimize down to just `a > 2` during forwprop1 */
/* { dg-final { scan-tree-dump-not "a_\[0-9\]+.D. == 3" "forwprop1" } } */

_Bool f1(int b)
{
        _Bool t = b == 3;
        short t1 = b;
        _Bool t2 = t1 >= 3;
        return t | t2;
}

/* Should be able to optimize down to just `a > 2` during forwprop1 as `((short)a) >= 3` is
   true already when `a == 3`. */
/* { dg-final { scan-tree-dump-not "b_\[0-9\]+.D. == 3" "forwprop1" } } */
/* { dg-final { scan-tree-dump-times "_\[0-9\]+ > 2" 2 "forwprop1" } } */