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move the liveon() function in live.c

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This commit is contained in:
Quentin Carbonneaux 2015-09-26 16:33:29 -04:00
parent e80b84ebdb
commit aa9dc34399
3 changed files with 32 additions and 35 deletions
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20
lisc/spill.c
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@ -258,22 +258,6 @@ setloc(Ref *pr, Bits *v, Bits *w)
}
}
static Bits
inregs(Blk *b, Blk *s) /* todo, move to live.c */
{
Bits v;
Phi *p;
uint a;
v = s->in;
for (p=s->phi; p; p=p->link)
for (a=0; a<p->narg; a++)
if (p->blk[a] == b)
if (rtype(p->arg[a]) == RTmp)
BSET(v, p->arg[a].val);
return v;
}
static Ins *
dopm(Blk *b, Ins *i, Bits *v)
{
@ -374,10 +358,10 @@ spill(Fn *fn)
} else if (j > NReg)
limit(&v, NReg, 0);
} else if (s1) {
v = inregs(b, s1);
v = liveon(b, s1);
w = v;
if (s2) {
u = inregs(b, s2);
u = liveon(b, s2);
for (z=0; z<BITS; z++) {
v.t[z] |= u.t[z];
w.t[z] &= u.t[z];