| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-optimized -fno-tree-ch" } */ | |
| int foo (int a) | |
| { | |
| do | |
| { | |
| if (a == 1) | |
| return 0; | |
| switch (a) | |
| { | |
| case 1: | |
| return 5; | |
| case 2: | |
| return 7; | |
| case 3: | |
| return 11; | |
| default:; | |
| } | |
| } | |
| while (1); | |
| } | |
| /* { dg-final { scan-tree-dump-times "unswitching loop" 3 "unswitch" } } */ |