gcc/testsuite/gcc.target/aarch64/store_repeating_constant_2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Os" } */
   3
   4 /* Check that for -Os we synthesize only the bottom half and then
   5    store it twice with an STP rather than synthesizing it twice in each
   6    half of an X-reg.  */
   7
   8 void
   9 foo (unsigned long long *a)
  10 {
  11   a[0] = 0xc0da0000c0daULL;
  12 }
  13
  14 /* { dg-final { scan-assembler-times "mov\\tw.*" 1 } } */
  15 /* { dg-final { scan-assembler-times "stp\tw\[0-9\]+, w\[0-9\]+.*" 1 } } */