URL
https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.target/] [rx/] [interrupts.c] - Rev 323
Compare with Previous | Blame | View Log
/* { dg-do compile } */ /* { dg-options "-mint-register=3 -msave-acc-in-interrupts" } */ /* Verify that the RX specific function attributes work. */ void fast_interrupt (void) __attribute__((__fast_interrupt__)); void interrupt (void) __attribute__((__interrupt__)); int naked (int) __attribute__((__naked__)); int flag = 0; /* Fast interrupt handler. Only uses registers marked as fixed by the -fixed-xxx gcc command line option. Returns via RTFI. */ void fast_interrupt (void) { flag = 1; } /* Interrupt handler. Must preserve any register it uses, even call clobbered ones. Returns via RTE. */ void interrupt (void) { switch (flag) { case 0: flag = -1; break; case 1: case 2: case 4: flag = flag - 2; break; case 5: case 7: case 6: flag ^= 3; break; default: naked (flag * 2); break; } } /* Naked function. The programmer must supply the function's prologue and epilogue instructions. */ int naked (int arg) { flag = arg; } /* { dg-final { scan-assembler "rtfi" } } */ /* { dg-final { scan-assembler "rte" } } */