| /* { dg-do compile } */ |
| /* { dg-options "-O2 -fdump-tree-original" } */ |
| |
| /* x + (x & 1) -> (x + 1) & ~1 */ |
| int |
| fn1 (int x) |
| { |
| return x + (x & 1); |
| } |
| int |
| fn2 (int x) |
| { |
| return (x & 1) + x; |
| } |
| int |
| fn3 (int x) |
| { |
| return x + (1 & x); |
| } |
| int |
| fn4 (int x) |
| { |
| return (1 & x) + x; |
| } |
| unsigned int |
| fn5 (unsigned int x) |
| { |
| return x + (x & 1); |
| } |
| unsigned int |
| fn6 (unsigned int x) |
| { |
| return (x & 1) + x; |
| } |
| unsigned int |
| fn7 (unsigned int x) |
| { |
| return x + (x % 2); |
| } |
| unsigned int |
| fn8 (unsigned int x) |
| { |
| return (x % 2) + x; |
| } |
| unsigned int |
| fn9 (unsigned int x) |
| { |
| return (1LL & x) + x; |
| } |
| |
| /* { dg-final { scan-tree-dump-times "x \\+ 1" 9 "original" } } */ |
