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#include "common.h"
#include "ir.h"
extern struct xcon conht[];
static const char *clsname[] = {
"?", "i4", "i8", "ptr", "f4", "f8"
};
static void
prityp(union irtype typ)
{
if (!typ.isagg)
efmt(clsname[typ.cls]);
else {
const struct typedata *td = &typedata[typ.dat];
const char *tag = td->t == TYSTRUCT ? "struct" : "union";
if (ttypenames[td->id])
efmt("%s.%s.%d", tag, ttypenames[td->id], td->id);
else
efmt("%s.%d", tag, td->id);
}
}
static const char *intrinname[] = {
"?\??",
#define _(b,...) #b,
#include "intrin.def"
#undef _
};
static void
dumpref(enum op o, union ref ref)
{
struct xcon *con;
switch (ref.t) {
case RTMP: efmt("%%%d", ref.idx); break;
case RPARAM: efmt("%%param%d", ref.idx); break;
case RICON:
if (o == Ointrin) efmt("\"%s\"", intrinname[ref.i]);
else efmt("%d", ref.i);
break;
case RXCON:
con = &conht[ref.idx];
if (con->issym) efmt("$%s", con->sym);
else switch (con->cls) {
case KI4: efmt("%d", con->i4); break;
case KI8: efmt("%ld", con->i8); break;
case KPTR: efmt("%'x", con->i8); break;
case KF4: efmt("%fs", con->fs); break;
case KF8: efmt("%fd", con->fd); break;
default: assert(0);
}
break;
case RMORE:
if (o == Ocall || o == Ointrin) {
struct call *call = &calltab.p[ref.idx];
if (call->sret) {
efmt("sret ");
prityp(call->typs[call->narg]);
}
for (int i = 0; i < call->narg; ++i) {
if (i > 0 || call->sret) efmt(", ");
if (call->vararg == i)
efmt("..., ");
prityp(call->typs[i]);
efmt(" ");
dumpref(0, call->args[i]);
}
} else if (o == Ophi) {
struct phi *phi = &phitab.p[ref.idx];
for (int i = 0; i < phi->n; ++i) {
if (i > 0) efmt(", ");
efmt("[.L%d ", phi->blk[i]->id);
dumpref(0, phi->ref[i]);
efmt("]");
}
} else assert(0);
break;
default: assert(!"ref");
}
}
static const char *opname[] = {
"?\??",
#define _(o,...) #o,
#include "op.def"
#undef _
};
static const uchar opnarg[] = {
0,
#define _(o,n) n,
#include "op.def"
#undef _
};
static void
dumpinst(const struct instr *ins)
{
int i;
efmt(" ");
if (ins->cls) {
efmt("%s %%%d", clsname[ins->cls], ins - instrtab);
if (ins->reg) efmt("(%ls)", mctarg->rnames[ins->reg - 1]);
efmt(" = ");
}
efmt("%s ", opname[ins->op]);
for (i = 0; i < opnarg[ins->op]; ++i) {
if (i) efmt(", ");
dumpref(ins->op, (&ins->l)[i]);
}
efmt("\n");
}
static void
dumpblk(struct function *fn, struct block *blk)
{
static const char *jnames[] = { 0, "b", "ret" };
int i;
efmt(" .L%d:\n", blk->id);
for (i = 0; i < blk->phi.n; ++i) {
dumpinst(&instrtab[blk->phi.p[i]]);
}
for (i = 0; i < blk->ins.n; ++i) {
dumpinst(&instrtab[blk->ins.p[i]]);
}
efmt(" %s ", jnames[blk->jmp.t]);
for (i = 0; i < 2; ++i) {
if (!blk->jmp.arg[i].t) break;
if (i > 0) efmt(", ");
if (blk->jmp.t == Jret && fn->nabiret > i) {
prityp(fn->abiret[i].ty);
efmt(" ");
}
dumpref(0, blk->jmp.arg[i]);
}
if (i && blk->s1) efmt(", ");
if (blk->s1 && blk->s2) efmt(".L%d, .L%d", blk->s1->id, blk->s2->id);
else if (blk->s1) efmt(".L%d", blk->s1->id);
efmt("\n");
}
void
irdump(struct function *fn, const char *fname)
{
struct block *blk;
efmt("function %s : %ty\n", fname, fn->fnty);
if (fn->abiarg || fn->retty.t != TYVOID) {
efmt("abi: (");
for (int i = 0; i < fn->nabiarg; ++i) {
if (i > 0) efmt(", ");
if (fn->abiarg[i].reg != -1) {
efmt("%ls", mctarg->rnames[fn->abiarg[i].reg]);
} else {
prityp(fn->abiarg[i].ty);
efmt(" <stk>");
}
}
efmt(")");
if (fn->retty.t != TYVOID) {
efmt(" -> %ls", mctarg->rnames[fn->abiret[0].reg]);
if (fn->nabiret > 1)
efmt(", %ls", mctarg->rnames[fn->abiret[1].reg]);
}
efmt("\n");
}
blk = fn->entry;
do {
dumpblk(fn, blk);
} while ((blk = blk->lnext) != fn->entry);
}
/* vim:set ts=3 sw=3 expandtab: */
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