1  /* { dg-do compile } */
       2  /* { dg-require-effective-target hard_float } */
       3  /* { dg-options "-O2 -fmath-errno -fdump-tree-cdce-details -fdump-tree-optimized" } */
       4  /* { dg-final { scan-tree-dump "cdce3.c:11: \[^\n\r]* function call is shrink-wrapped into error conditions\." "cdce" } } */
       5  /* { dg-final { scan-tree-dump "sqrtf \\(\[^\n\r]*\\); \\\[tail call\\\]" "optimized" } } */
       6  /* { dg-skip-if "doesn't have a sqrtf insn" { mmix-*-* } } */
       7  
       8  float sqrtf (float);
       9  float foo (float x)
      10  {
      11    return sqrtf (x);
      12  }
      13