gcc/testsuite/gcc.target/arc/sub_n-combine.c

   1 /* { dg-do compile }  */
   2 /* { dg-options "-O2 -fdump-rtl-combine" }  */
   3
   4 int a;
   5
   6 double b1() {
   7   int c = a << 1;
   8   return 1 - c;
   9 }
  10
  11 double b2() {
  12   int c = a << 2;
  13   return 1 - c;
  14 }
  15
  16 double b3() {
  17   int c = a << 3;
  18   return 1 - c;
  19 }
  20
  21 /* { dg-final { scan-rtl-dump-times "\\*sub_n" 3 "combine" } } */