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PR rtl-optimization/52139
[pf3gnuchains/gcc-fork.git] / gcc / testsuite / gcc.dg / tree-ssa / ssa-dse-1.c
1 /* { dg-do compile } */
2 /* { dg-options "-O2 -fdump-tree-dse1" } */
3
4 int
5 foo (int a, int b, int c)
6 {
7   int *p;
8   if (c)
9     p = &a;
10   else
11     p = &b;
12
13   *p = 3;
14   *p = 4;
15   return *p;
16 }
17
18
19 /* We should eliminate both assignments to *p.  */
20 /* { dg-final { scan-tree-dump-times " = 3" 0 "dse1"} } */
21 /* { dg-final { scan-tree-dump-times " = 4" 0 "dse1"} } */
22
23 /* The return *p should be turned into return 4.  */
24 /* { dg-final { scan-tree-dump-times " return 4" 1 "dse1"} } */
25
26 /* { dg-final { cleanup-tree-dump "dse1" } } */