gcc/testsuite/gcc.dg/attr-isr.c

   1 /* { dg-do compile { target sh-*-* sh[1234ble]*-*-*} } */
   2 /* { dg-options "-O" } */
   3 extern void foo ();
   4
   5 void
   6 (__attribute ((interrupt_handler)) isr)()
   7 {
   8   foo ();
   9 }
  10
  11 /* { dg-final { scan-assembler-times "rte" 1} } */
  12 /* The call will clobber r0..r7, which will need not be saved/restored.
  13    One of these registers will do fine to hold the function address,
  14    hence the all-saved registers r8..r13 don't need to be restored.  */
  15 /* { dg-final { scan-assembler-times "r15\[+\],\[ \t\]*r\[0-9\]\[ \t\]*\n" 8 } } */
  16 /* { dg-final { scan-assembler-times "\[^f\]r\[0-9\]\[ \t\]*," 8 } } */
  17 /* { dg-final { scan-assembler-not "\[^f\]r1\[0-3\]" } } */
  18 /* { dg-final { scan-assembler-times "macl" 2} } */