| /* Verify straight-line strength reduction for simple pointer subtraction. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-options "-O3 -fdump-tree-optimized" } */ |
| |
| int* |
| f (int s, int *c) |
| { |
| int a1, a2, a3, *x1, *x2, *x3; |
| |
| a1 = 2 * s; |
| x1 = c - a1; |
| a2 = 4 * s; |
| x2 = c - a2; |
| a3 = 6 * s; |
| x3 = c - a3; |
| return x1 ? x2 : x3; |
| } |
| |
| /* There are 4 ' * ' instances in the decls (since "int * iftmp.0;" is |
| added), 1 parm, 2 in the code. The second one in the code can be |
| a widening mult. */ |
| /* { dg-final { scan-tree-dump-times " w?\\* " 7 "optimized" } } */ |
| /* { dg-final { cleanup-tree-dump "optimized" } } */ |
