make rsp and rbp globally live
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parent
c71f44c5a8
commit
8799dc30ac
5 changed files with 40 additions and 37 deletions
20
rega.c
20
rega.c
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@ -154,9 +154,10 @@ mdump(RMap *m)
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int i;
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for (i=0; i<m->n; i++)
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fprintf(stderr, " (%s, R%d)",
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tmp[m->t[i]].name,
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m->r[i]);
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if (m->t[i] >= Tmp0)
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fprintf(stderr, " (%s, R%d)",
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tmp[m->t[i]].name,
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m->r[i]);
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fprintf(stderr, "\n");
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}
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@ -360,15 +361,10 @@ doblk(Blk *b, RMap *cur)
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Mem *m;
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Ref *ra[4];
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for (r=0; bsiter(b->out, &r) && r<Tmp0; r++)
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radd(cur, r, r);
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if (rtype(b->jmp.arg) == RTmp)
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b->jmp.arg = ralloc(cur, b->jmp.arg.val);
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else if (rtype(b->jmp.arg) == RCall) {
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/* add return registers */
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rs = retregs(b->jmp.arg, 0);
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for (r=0; rs; rs/=2, r++)
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if (rs & 1)
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radd(cur, r, r);
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}
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for (i=&b->ins[b->nins]; i!=b->ins;) {
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switch ((--i)->op) {
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case Ocall:
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@ -444,8 +440,8 @@ rega(Fn *fn)
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bsinit(cur.b, fn->ntmp);
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bsinit(old.b, fn->ntmp);
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for (t=Tmp0; t<fn->ntmp; t++)
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*hint(t) = -1;
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for (t=0; t<fn->ntmp; t++)
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*hint(t) = t < Tmp0 ? t : -1;
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for (b=fn->start, i=b->ins; i-b->ins < b->nins; i++)
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if (i->op != Ocopy || !isreg(i->arg[0]))
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break;
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