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

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-tree-optimized" } */
   3 /* { dg-additional-options "-mbranch-cost=1" { target { i?86-*-* x86_64-*-* mips*-*-* s390*-*-* avr*-*-* } } } */
   4
   5 _Bool f1(_Bool a, _Bool b)
   6 {
   7   if (a)
   8    {
   9      if (b)
  10       return 1;
  11      else
  12       return 0;
  13    }
  14   return 0;
  15 }
  16
  17
  18 /* There should be only one if, the outer one; the inner one
  19    should have been changed to straight line code with the
  20    value of b (except that we don't fold ! (b != 0) into b
  21    which can be fixed in a different patch).
  22    Test this only when known to be !LOGICAL_OP_NON_SHORT_CIRCUIT,
  23    otherwise ifcombine may convert this into return a & b;.  */
  24 /* { dg-final { scan-tree-dump-times "if" 1 "optimized" { target { i?86-*-* x86_64-*-* mips*-*-* s390*-*-* avr*-*-* } } } } */
  25 /* { dg-final { cleanup-tree-dump "optimized" } } */