gcc/testsuite/gcc.dg/20020122-3.c

   1 /* Check that the combination of -Os and -fprefetch-loop-arrays does not
   2    cause the compiler to crash, which it originally did on i?86.
   3    Warnings are turned off because not all targets support prefetch.  */
   4
   5 /* { dg-do compile } */
   6 /* { dg-options "-Os -fprefetch-loop-arrays -w" } */
   7 /* { dg-options "-Os -fprefetch-loop-arrays -mtune=pentium3 -w" { target { { i?86-*-* x86_64-*-* } && ia32 } } } */
   8
   9 int foo (int *p, int n)
  10 {
  11   int i, r;
  12   for (i = 0; i < n; i++)
  13     r += p[i];
  14   return r;
  15 }