| /* { dg-do compile } */ | |
| /* { dg-options "-O -fdump-tree-dse1-details" } */ | |
| struct A { char c[4]; } a, b; | |
| void | |
| f1 (void) | |
| { | |
| __builtin_memcpy (&a.c[0], "a", 1); | |
| a = b; | |
| } | |
| void | |
| f2 (void) | |
| { | |
| __builtin_memcpy (&a.c[0], "a", 1); | |
| __builtin_memcpy (&a.c[0], "cdef", 4); | |
| } | |
| /* { dg-final { scan-tree-dump-times "Deleted dead store" 2 "dse1" } } */ |