1 /* A call will clobber all call-saved registers.
2 If #pragma nosave_low_regs is specified, do not save/restore r0..r7.
3 (On SH3* and SH4* r0..r7 are banked)
4 Call-saved registers r8..r14 also don't need to be restored.
5 To test that we look for register push insns such as 'mov.l r0,@-r15'. */
6 /* { dg-do compile { target { { banked_r0r7_isr } && nonpic } } } */
7 /* { dg-options "-O" } */
8 /* { dg-final { scan-assembler-times "rte" 1 } } */
9 /* { dg-final { scan-assembler-not "mov.l\tr\[0-9\],@-r15" } } */
10 /* { dg-final { scan-assembler-not "mov.l\tr1\[0-4\],@-r15" } } */
11 /* { dg-final { scan-assembler-times "macl" 2 } } */
12
13 extern void foo (void);
14
15 #pragma interrupt
16 #pragma nosave_low_regs
17 void
isr(void)18 isr (void)
19 {
20 foo ();
21 }
22