gcc/testsuite/gcc.dg/sparc-loop-1.c

   1 /* PR optimization/10157 */
   2 /* Originator: Peter van Hoof <p.van-hoof@qub.ac.uk> */
   3 /* { dg-do compile { target sparc*-*-* } } */
   4 /* { dg-options "-O2 -ffast-math" } */
   5
   6 /* Verify that the loop optimizer doesn't
   7    emit invalid reg-to-reg copy insns. */
   8
   9 void g() {
  10   while(1) {
  11     int i,n;
  12     double p,r;
  13     for( i=0; i < n; i++ )
  14       if( p > 1. )
  15         for( i=0; i < n; i++ )
  16           r += 2.;
  17   }
  18 }