| /* PR tree-optimization/20657 | |
| VRP did not pick up a conditional equivalence from the first "if" | |
| statement, which was needed to eliminate the second "if" statement. */ | |
| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-vrp1-details" } */ | |
| int | |
| foo (int a) | |
| { | |
| if (a == 0) | |
| if (a == 0) | |
| return 1; | |
| return 0; | |
| } | |
| /* { dg-final { scan-tree-dump-times "Folding predicate" 1 "vrp1"} } */ | |
| /* { dg-final { cleanup-tree-dump "vrp1" } } */ |