gcc/testsuite/gcc.target/arm/thumb-bitfld1.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target arm_thumb1_ok } */
   3 /* { dg-options "-O1 -mthumb" }  */
   4
   5 struct foo
   6 {
   7   unsigned b31 : 1;
   8   unsigned b30 : 1;
   9   unsigned b29 : 1;
  10   unsigned b28 : 1;
  11   unsigned rest : 28;
  12 };
  13
  14 unsigned
  15 foo(a)
  16      struct foo a;
  17 {
  18   return a.b30;
  19 }
  20
  21 /* { dg-final { scan-assembler-times "lsl" 1 } } */
  22 /* { dg-final { scan-assembler-times "lsr" 1 } } */