| /* { dg-do compile } */ | |
| /* { dg-options "-O2 -fdump-tree-optimized" } */ | |
| unsigned int f (unsigned int a0, unsigned int a1, unsigned int a2, | |
| unsigned int a3, unsigned int a4) | |
| { | |
| unsigned int b0, b1, b2, b3, b4, e; | |
| /* this can be optimized to four additions... */ | |
| b4 = a4 + a3 + a2 + a1 + a0; | |
| b3 = a3 + a2 + a1 + a0; | |
| b2 = a2 + a1 + a0; | |
| b1 = a1 + a0; | |
| /* This is actually 0 */ | |
| e = b4 - b3 + b2 - b1 - a4 - a2; | |
| return e; | |
| } | |
| /* { dg-final { scan-tree-dump-times "return 0" 1 "optimized" } } */ |