| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -fdump-tree-dse1-details" } */ | |
| void *foo (int *p) | |
| { | |
| void *q; | |
| /* We should be able to DSE this store (p may point to errno). */ | |
| *p = 0; | |
| q = __builtin_malloc (4); | |
| *p = 0; | |
| return q; | |
| } | |
| int j; | |
| void bar (int *i) | |
| { | |
| /* This store is dead as well. */ | |
| j = 1; | |
| *i = 0; | |
| j = 2; | |
| } | |
| /* { dg-final { scan-tree-dump-times "Deleted dead store" 2 "dse1" } } */ |