/* Verify straight-line strength reduction for multiply candidates with variable stride and control flow. */ /* { dg-do compile } */ /* { dg-options "-O3 -fdump-tree-optimized" } */ int f (int n, int x, int stride) { int a, x1, x2, x3; a = x * stride; if (n > 64) { x1 = x + 3; a += x1 * stride; x2 = x1 + 3; a += x2 * stride; x3 = x2 + 3; a += x3 * stride; } return a; } /* { dg-final { scan-tree-dump-times " \\* stride" 1 "optimized" } } */ /* { dg-final { scan-tree-dump-times " \\* 3" 1 "optimized" } } */ /* { dg-final { cleanup-tree-dump "optimized" } } */