| /* { dg-do compile } */ | |
| /* { dg-options "-O -fstrict-aliasing -fdump-tree-optimized" } */ | |
| struct S { float f; int i; }; | |
| struct R { int x; int i; }; | |
| /* Strict-aliasing rules say that int and float do not alias. */ | |
| int bar(struct S *s, int *i) | |
| { | |
| *i = 0; | |
| s->f = 1.0; | |
| return *i; | |
| } | |
| /* Strict-aliasing rules say that S and R do not alias. */ | |
| int foo(struct S *s, struct R *r) | |
| { | |
| r->i = 0; | |
| s->i = 1; | |
| return r->i; | |
| } | |
| /* { dg-final { scan-tree-dump-times "return 0;" 2 "optimized" } } */ |