gcc/testsuite/gcc.dg/tree-ssa/ivopts-lt.c

/* { dg-do compile } */
/* { dg-options "-O2 -fno-tree-loop-distribute-patterns -fdump-tree-ivopts" } */
/* { dg-require-effective-target stdint_types } */

#include "stdint.h"

void
f1 (char *p, uintptr_t i, uintptr_t n)
{
  p += i;
  do
    {
      *p = '\0';
      p += 1;
      i++;
    }
  while (i < n);
}

/* { dg-final { scan-tree-dump-times "PHI" 1 "ivopts" { target { ! powerpc*-*-* } } } } */
/* { dg-final { scan-tree-dump-times "PHI" 2 "ivopts" { target { powerpc*-*-* } } } } */
/* { dg-final { scan-tree-dump-times "PHI <p_" 1 "ivopts" { target { ! powerpc*-*-* } } } } */
/* { dg-final { scan-tree-dump-times "p_\[0-9\]* <" 1 "ivopts" { target { ! powerpc*-*-* } } } } */