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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [testsuite/] [gcc.dg/] [attr-isr-nosave_low_regs.c] - Rev 853
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/* { dg-do compile { target sh-*-* sh[1234ble]*-*-*} } */ /* { dg-options "-O" } */ extern void bar (); void foo () { } #pragma interrupt void ( __attribute__ ((nosave_low_regs)) isr) () { bar (); } void delay(int a) { } /* { dg-final { scan-assembler-times "rte" 1} } */ /* A call will clobber all call-saved registers, but because of #pragma nosave_low_regs, r0..r7 need not be saved/restored. 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-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} } */
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