gcc/testsuite/gcc.dg/tree-ssa/phi-opt-value-2.c

   1 /* { dg-do compile } */
   2 /* Phi-OPT should be able to optimize this without sinking being invoked. */
   3 /* { dg-options "-O -fdump-tree-phiopt2 -fdump-tree-optimized -fno-tree-sink" } */
   4
   5 int f(int a, int b, int c) {
   6   int d = a + b;
   7   if (c > 5) return c;
   8   if (a == 0) return b;
   9   return d;
  10 }
  11
  12 unsigned rot(unsigned x, int n) {
  13   const int bits = __CHAR_BIT__ * __SIZEOF_INT__;
  14   int t = ((x << n) | (x >> (bits - n)));
  15   return (n == 0) ? x : t;
  16 }
  17
  18 /* { dg-final { scan-tree-dump-times "goto" 2 "phiopt2" } } */
  19 /* { dg-final { scan-tree-dump-times "goto" 2 "optimized" } } */