gcc/testsuite/gcc.target/arm/thumb-ifcvt.c

   1 /* Check that Thumb 16-bit shifts can be if-converted.  */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target arm_thumb2_ok } */
   4 /* { dg-options "-O2 -mthumb -mno-restrict-it" } */
   5
   6 int
   7 foo (int a, int b)
   8 {
   9   if (a != b)
  10     {
  11       a = a << b;
  12       a = a >> 1;
  13     }
  14
  15   return a + b;
  16 }
  17
  18 /* { dg-final { scan-assembler "lslne" } } */
  19 /* { dg-final { scan-assembler "asrne" } } */