| /* { dg-do compile } */ | |
| /* { dg-options "-O -fno-tree-ccp -fdump-tree-forwprop1" } */ | |
| int foo (int x) | |
| { | |
| int y = 0; | |
| int z = x + 1; | |
| int w = z + y; /* becomes z */ | |
| return w - z; /* becomes 0 */ | |
| } | |
| /* Only z = x + 1 is retained. */ | |
| /* { dg-final { scan-tree-dump-times " = " 1 "forwprop1" } } */ | |
| /* { dg-final { scan-tree-dump "return 0;" "forwprop1" } } */ |