File: ssa-fre-61.c

package info (click to toggle)
gcc-riscv64-unknown-elf 8.3.0.2019.08%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 680,956 kB
  • sloc: ansic: 3,237,715; cpp: 896,882; ada: 772,854; f90: 144,254; asm: 68,788; makefile: 67,456; sh: 29,743; exp: 28,045; objc: 15,273; fortran: 11,885; python: 7,369; pascal: 5,375; awk: 3,725; perl: 2,872; yacc: 316; xml: 311; ml: 285; lex: 198; haskell: 122
file content (43 lines) | stat: -rw-r--r-- 759 bytes parent folder | download | duplicates (2) 
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
 
/* { dg-do link } */
/* { dg-options "-O -fdump-tree-fre1-details" } */

void link_error (void);

void test1 (int *p, int *q)
{
  *p = 1;
  *q = 1;
  if (*p != 1)
    link_error ();
}

void test2 (int *p, int *q, int t)
{
  *p = t;
  *q = t;
  if (*p != t)
    link_error ();
}

void test3 (int *q, int *p)
{
  int tem = *p;
  *q = tem;
  if (*p != tem)
    link_error ();
}

char a[4];
struct A { char a[4]; };
void test4 (struct A *p)
{
  a[0] = p->a[0];
  a[0] = p->a[0];
  a[0] = p->a[0];
}

int main() { return 0; }

/* { dg-final { scan-tree-dump-times "Replaced \\\*p" 3 "fre1" } } */
/* { dg-final { scan-tree-dump-times "Replaced p_.\\(D\\)->" 2 "fre1" } } */
/* { dg-final { scan-tree-dump-times "Deleted redundant store a\\\[0\\\]" 2 "fre1" } } */