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move spill and emit to the new slot system

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In emit, I worked a little to make sure that framesz works
when we change the size of the svec array (if we need more
alignments).
This commit is contained in:
Quentin Carbonneaux 2015-08-18 19:11:48 -04:00
parent 627e45e330
commit 6f09869ea1
4 changed files with 41 additions and 17 deletions
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21
lisc/spill.c
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@ -141,10 +141,10 @@ bcnt(Bits *b) /* glad I can pull it :) */
}
extern Ins insb[NIns], *curi; /* shared work buffer */
static Bits *f; /* temps to prioritize in registers (for tcmp1) */
static Tmp *tmp; /* current temporaries (for tcmpX) */
static int ntmp; /* current # of temps (for limit) */
static uint ns; /* current # of spill slots */
static Bits *f; /* temps to prioritize in registers (for tcmp1) */
static Tmp *tmp; /* current temporaries (for tcmpX) */
static int ntmp; /* current # of temps (for limit) */
static int *svec; /* free slots vector */
static int
tcmp0(const void *pa, const void *pb)
@ -170,7 +170,12 @@ slot(int t)
diag("spill: cannot spill register");
s = tmp[t].spill;
if (!s) {
s = ++ns;
if (tmp[t].type == TWord)
s = slota(1, 1, svec);
else if (tmp[t].type == TLong)
s = slota(2, 2, svec);
else
diag("spill: unknown type (1)");
tmp[t].spill = s;
}
return SLOT(s);
@ -189,8 +194,10 @@ store(Ref r, int s)
{
if (tmp[r.val].type == TLong)
emit(OStorel, R, r, SLOT(s));
else
else if (tmp[r.val].type == TWord)
emit(OStorew, R, r, SLOT(s));
else
diag("spill: unknown type (2)");
}
static int
@ -293,7 +300,7 @@ spill(Fn *fn)
int j, s;
Phi *p;
ns = 0;
svec = fn->svec;
tmp = fn->tmp;
ntmp = fn->ntmp;
assert(ntmp < NBit*BITS);