gcc/testsuite/gcc.dg/cdce3.c

   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:10: \[^\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