gcc/testsuite/gcc.target/nios2/bmx.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-O2 -march=r2 -mbmx" } */
   3
   4 /* Test generation of Nios II R2 BMX instructions.  */
   5
   6 struct s {
   7   unsigned int pad1 : 3;
   8   unsigned int bitfield : 20;
   9   unsigned int intfield;
  10 };
  11
  12 void f (struct s *a, struct s *b)
  13 {
  14   a->bitfield = b->bitfield;
  15 }
  16
  17 void g (struct s *a, struct s *b)
  18 {
  19   a->bitfield = b->intfield;
  20 }
  21
  22 void h (struct s *a, struct s *b)
  23 {
  24   a->intfield = b->bitfield;
  25 }
  26
  27 /* { dg-final { scan-assembler "\tmerge\t.*, 22, 3" } }  */
  28 /* { dg-final { scan-assembler "\tinsert\t.*, 22, 3" } }  */
  29 /* { dg-final { scan-assembler "\textract\t.*, 22, 3" } }  */