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-*-* } } */
   8 /* { dg-skip-if "" { i?86-*-* } { "-m64" } { "" } } */
   9
  10 int foo (int *p, int n)
  11 {
  12   int i, r;
  13   for (i = 0; i < n; i++)
  14     r += p[i];
  15   return r;
  16 }