/* A call will clobber all call-saved registers. If #pragma nosave_low_regs is specified, do not save/restore r0..r7. (On SH3* and SH4* r0..r7 are banked) One of these registers will also do fine to hold the function address. Call-saved registers r8..r13 also don't need to be restored. */ /* { dg-do compile { target { { "sh*-*-*" } && nonpic } } } */ /* { dg-skip-if "" { "sh*-*-*" } { "-m1*" "-m2*" "-m5*" } { "" } } */ /* { dg-options "-O" } */ /* { dg-final { scan-assembler-times "rte" 1 } } */ /* { dg-final { scan-assembler-not "\[^f\]r\[0-9\]\[ \t\]*," } } */ /* { dg-final { scan-assembler-not "\[^f\]r\[89\]" } } */ /* { dg-final { scan-assembler-not "\[^f\]r1\[,0-3\]" } } */ /* { dg-final { scan-assembler-times "macl" 2 } } */ extern void foo (void); #pragma interrupt #pragma nosave_low_regs void isr (void) { foo (); }