/* APPLE LOCAL file lno */ /* { dg-do compile } */ /* { dg-options "-O1 -fdump-tree-optimized" } */ void remove_me (void); int main(void) { int a = -100; int b = 2; int c = 3; int d = -5; int e = 3; int f = -100; while (a) { /* Exercises higher order polynomials. */ a = a + b; /* a -> {-100, +, 2, +, 3, +, 4}_1 */ b = b + c; /* b -> {2, +, 3, +, 4}_1 */ c = c + 4; /* c -> {3, +, 4}_1 */ d = d + 4; /* d -> {-5, +, 4}_1 */ e = e + d; /* e -> {3, +, -1, +, 4}_1 */ f = f + e; /* f -> {-100, +, 2, +, 3, +, 4}_1 */ if (a != f) /* (a == f) -> {-98, +, 5, +, 7, +, 4}_1 */ remove_me (); } } /* { dg-final { scan-tree-dump-times "remove_me" 0 "optimized"} } */