gcc/testsuite/gcc.target/powerpc/pr61837.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -fdump-rtl-loop2_doloop -fno-unroll-loops" } */
   3 /* The inner loop would use the doloop IV in word_mode.  And then
   4    there is no need to access it though zero_extend on shorter mode.  */
   5 void foo(int *p1, long *p2, int s)
   6 {
   7   int n, v, i;
   8
   9   v = 0;
  10   for (n = 0; n <= 100; n++) {
  11      for (i = 0; i < s; i++)
  12         if (p2[i] == n)
  13            p1[i] = v;
  14      v += 88;
  15   }
  16 }
  17
  18 /* { dg-final {scan-rtl-dump-not {(?p)zero_extend.*doloop} "loop2_doloop"} } */
  19 /* { dg-final {scan-rtl-dump-not {(?p)reg:SI.*doloop} "loop2_doloop" { target lp64 } } } */
  20