gcc/testsuite/gcc.dg/pr64434.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O1 -fdump-rtl-expand-details" } */
   3
   4 #define N 256
   5 int a1[N], a2[N], a3[N], a4[N];
   6
   7 void foo ()
   8 {
   9   int i;
  10   for (i=0; i<N; i++) {
  11     int c;
  12     c = a3[i] + (a1[i] * a2[i]);
  13     a4[i] = c + 1;
  14     a1[i] = a2[i] - 1;
  15   }
  16 }
  17
  18 /* { dg-final { scan-rtl-dump-times "Swap operands" 1 "expand" } } */
  19 /* { dg-final { cleanup-rtl-dump "expand" } } */
  20
  21