File: ssa-dse-29.c

package info (click to toggle)
gcc-arm-none-eabi 15%3A8-2019-q3-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 571,828 kB
  • sloc: ansic: 2,937,651; cpp: 881,644; ada: 597,189; makefile: 65,528; asm: 56,499; xml: 46,621; exp: 24,747; sh: 19,684; python: 7,256; pascal: 4,370; awk: 3,497; perl: 2,695; yacc: 316; ml: 285; f90: 234; lex: 198; objc: 194; haskell: 119
file content (26 lines) | stat: -rw-r--r-- 485 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
 
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-dse-details" } */

struct z {
  int a;
  int b;
  int c;
};

int
foo(int cond, struct z *s)
{

  if (cond)
    {
      s->a = 1;
      s->b = 2;
      s->c = 3;
    }
  __builtin_memset (s, 0, sizeof (struct z));
}

/* { dg-final { scan-tree-dump-times "Deleted dead store" 3 "dse1"} } */
/* { dg-final { scan-tree-dump-not "Deleted dead store" "dse2"} } */
/* { dg-final { scan-tree-dump-not "Deleted dead store" "dse3"} } */