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#include "lisc.h"
char debug['Z'+1] = {
['S'] = 0, /* spiller */
['R'] = 0, /* reg. allocator */
};
void
dumpts(Bits *b, Tmp *tmp, FILE *f)
{
int t;
fprintf(f, "[");
for (t=0; t<BITS*NBit; t++)
if (BGET(*b, t))
fprintf(f, " %s", tmp[t].name);
fprintf(f, " ]\n");
}
int
main(int ac, char *av[])
{
int opt, pr;
Fn *fn;
fn = parsefn(stdin);
pr = 1;
opt = 0;
if (ac > 1 && av[1][0] == '-')
opt = av[1][1];
switch (opt) {
case 'f': {
int t, ntmp;
fprintf(stderr, "[Testing SSA Reconstruction:");
fillpreds(fn);
for (ntmp=fn->ntmp, t=0; t<ntmp; t++) {
fprintf(stderr, " %s", fn->tmp[t].name);
ssafix(fn, t);
}
fprintf(stderr, "]\n");
break;
}
case 'r': {
int n;
fprintf(stderr, "[Testing RPO]\n");
RPODump:
fillrpo(fn);
assert(fn->rpo[0] == fn->start);
for (n=0;; n++)
if (n == fn->nblk-1) {
fn->rpo[n]->link = 0;
break;
} else
fn->rpo[n]->link = fn->rpo[n+1];
break;
}
case 'l': {
Blk *b;
fprintf(stderr, "[Testing Liveness]\n");
fillrpo(fn);
filllive(fn);
for (b=fn->start; b; b=b->link) {
printf("> Block %s\n", b->name);
printf("\t in: ");
dumpts(&b->in, fn->tmp, stdout);
printf("\tout: ");
dumpts(&b->out, fn->tmp, stdout);
printf("\tnlive: %d\n", b->nlive);
}
pr = 0;
break;
}
case 'i': {
fprintf(stderr, "[Testing Instruction Selection]\n");
isel(fn);
break;
}
case 's': {
Blk *b;
fprintf(stderr, "[Testing Spilling]\n");
debug['S'] = 1;
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
printf("> Block information:\n");
for (b=fn->start; b; b=b->link) {
printf("\t%-10s (% 5d) ",
b->name, b->loop);
dumpts(&b->out, fn->tmp, stdout);
}
printf("\n");
break;
}
#if 0
case 'a': {
fprintf(stderr, "[Testing Register Allocation]\n");
debug['R'] = 1;
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
rega(fn);
goto RPODump;
}
case 'e': {
int n;
fprintf(stderr, "[Testing Code Emission]\n");
isel(fn);
fillrpo(fn);
fillpreds(fn);
filllive(fn);
fillcost(fn);
spill(fn);
rega(fn);
fillrpo(fn);
assert(fn->rpo[0] == fn->start);
for (n=0;; n++)
if (n == fn->nblk-1) {
fn->rpo[n]->link = 0;
break;
} else
fn->rpo[n]->link = fn->rpo[n+1];
emitfn(fn, stdout);
pr = 0;
break;
}
#endif
default:
break;
}
if (pr)
printfn(fn, stdout);
exit(0);
}
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