gcc/testsuite/g++.dg/tree-ssa/pr41428.C

   1 /* { dg-do compile } */
   2 /* { dg-options "-O -fdump-tree-ccp1-details" } */
   3
   4 extern "C" void abort (void);
   5 inline void *operator new (__SIZE_TYPE__, void *__p) throw () { return __p; }
   6
   7 int foo(void)
   8 {
   9   float f = 0;
  10   int *i = new (&f) int (1);
  11   return *(int *)&f;
  12 }
  13
  14 /* { dg-final { scan-tree-dump "Folded into: if \\\(1 != 0\\\)" "ccp1" } } */