gcc/testsuite/gcc.target/aarch64/ubfx_lsr_1.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2" } */
   3
   4 /* Check that an X-reg UBFX can be simplified into a W-reg LSR.  */
   5
   6 int
   7 f (unsigned long long x)
   8 {
   9   x = (x >> 24) & 255;
  10   return x + 1;
  11 }
  12
  13 /* { dg-final { scan-assembler "lsr\tw" } } */
  14 /* { dg-final { scan-assembler-not "ubfx\tx" } } */