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

   1 /* { dg-do compile { target { { { sh-*-* sh[1234ble]*-*-* } && { ! sh2a*-*-* } } && nonpic } } } */
   2 /* { dg-skip-if "" { "sh*-*-*" } { "-m2a*" } { "" } } */
   3 /* { dg-options "-O" } */
   4 extern void foo ();
   5
   6 void
   7 (__attribute ((interrupt_handler)) isr)()
   8 {
   9   foo ();
  10 }
  11
  12 /* { dg-final { scan-assembler-times "rte" 1} } */
  13 /* The call will clobber r0..r7, which will need not be saved/restored.
  14    One of these registers will do fine to hold the function address,
  15    hence the all-saved registers r8..r13 don't need to be restored.  */
  16 /* { dg-final { scan-assembler-times "r15\[+\],\[ \t\]*r\[0-9\]\[ \t\]*\n" 8 } } */
  17 /* { dg-final { scan-assembler-times "\[^f\]r\[0-9\]\[ \t\]*," 8 } } */
  18 /* { dg-final { scan-assembler-not "\[^f\]r1\[0-3\]" } } */
  19 /* { dg-final { scan-assembler-times "macl" 2} } */
  20 /* { dg-final { scan-assembler-not "rte.*\n.*r15\[+\],r\[0-7\]\n" } } */