diff options
Diffstat (limited to 'rega.c')
| -rw-r--r-- | rega.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/rega.c b/rega.c index fae7538..9f02a63 100644 --- a/rega.c +++ b/rega.c @@ -154,9 +154,10 @@ mdump(RMap *m) int i; for (i=0; i<m->n; i++) - fprintf(stderr, " (%s, R%d)", - tmp[m->t[i]].name, - m->r[i]); + if (m->t[i] >= Tmp0) + fprintf(stderr, " (%s, R%d)", + tmp[m->t[i]].name, + m->r[i]); fprintf(stderr, "\n"); } @@ -360,15 +361,10 @@ doblk(Blk *b, RMap *cur) Mem *m; Ref *ra[4]; + for (r=0; bsiter(b->out, &r) && r<Tmp0; r++) + radd(cur, r, r); if (rtype(b->jmp.arg) == RTmp) b->jmp.arg = ralloc(cur, b->jmp.arg.val); - else if (rtype(b->jmp.arg) == RCall) { - /* add return registers */ - rs = retregs(b->jmp.arg, 0); - for (r=0; rs; rs/=2, r++) - if (rs & 1) - radd(cur, r, r); - } for (i=&b->ins[b->nins]; i!=b->ins;) { switch ((--i)->op) { case Ocall: @@ -444,8 +440,8 @@ rega(Fn *fn) bsinit(cur.b, fn->ntmp); bsinit(old.b, fn->ntmp); - for (t=Tmp0; t<fn->ntmp; t++) - *hint(t) = -1; + for (t=0; t<fn->ntmp; t++) + *hint(t) = t < Tmp0 ? t : -1; for (b=fn->start, i=b->ins; i-b->ins < b->nins; i++) if (i->op != Ocopy || !isreg(i->arg[0])) break; |