Viewing file:  pr71785.c (1.29 KB) -rw-r--r--
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/* { dg-do compile { target { powerpc*-*-* } } } */
/* { dg-options "-O2" } */
/* We have to lose the default pic codegen on Darwin. */
/* { dg-additional-options "-mdynamic-no-pic" { target powerpc*-*-darwin* } } */
/* ... and account for the out-of-line GPR restore. */
/* { dg-final { scan-assembler-times {\mb[ \t]*restGPR} 1 { target powerpc*-*-darwin* } } } */
/* { dg-final { scan-assembler-not {\mb[ \t]L} { target powerpc*-*-darwin* } } } */
/* { dg-final { scan-assembler-not {\mb\M} { target { ! powerpc*-*-darwin* } } } } */
/* Check that all computed gotos in this testcase end up unfactored completely.
If some is not there will be a unconditional jump left; if all works fine,
all are gone. */
typedef enum opcode
{
OP_A,
OP_B,
OP_END
} opcode;
typedef struct op
{
opcode opcode;
int arg;
} op;
extern void do_stuff_b(int arg);
extern void do_stuff_c(int arg);
extern int someglobal;
void
eval(op *op)
{
static const void *dispatch_table[] = {
&&CASE_OP_A,
&&CASE_OP_B,
&&CASE_OP_C,
&&CASE_OP_END
};
goto *dispatch_table[op->opcode];
CASE_OP_A:
someglobal++;
op++;
goto *dispatch_table[op->opcode];
CASE_OP_B:
do_stuff_b(op->arg);
op++;
goto *dispatch_table[op->opcode];
CASE_OP_C:
do_stuff_c(op->arg);
op++;
goto *dispatch_table[op->opcode];
CASE_OP_END:
return;
}
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