DrSocalkwe3n/luajit
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Drop range limit for sunk stores relative to sunk allocation.

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This commit is contained in:
Mike Pall
2012-07-04 21:16:06 +02:00
parent bd782cedd5
commit 7c056488d9
4 changed files with 50 additions and 12 deletions
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10
src/lj_opt_sink.c
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@@ -32,8 +32,6 @@ static IRIns *sink_checkalloc(jit_State *J, IRIns *irs)
ir = IR(ir->op1);
if (!(ir->o == IR_TNEW || ir->o == IR_TDUP || ir->o == IR_CNEW))
return NULL; /* Not an allocation. */
if (ir + 255 < irs)
return NULL; /* Out of range. */
return ir; /* Return allocation. */
}
@@ -173,10 +171,12 @@ static void sink_sweep_ins(jit_State *J)
switch (ir->o) {
case IR_ASTORE: case IR_HSTORE: case IR_FSTORE: case IR_XSTORE: {
IRIns *ira = sink_checkalloc(J, ir);
if (ira && !irt_ismarked(ira->t))
ir->prev = REGSP(RID_SINK, (int)(ir - ira));
else
if (ira && !irt_ismarked(ira->t)) {
int delta = (int)(ir - ira);
ir->prev = REGSP(RID_SINK, delta > 255 ? 255 : delta);
} else {
ir->prev = REGSP_INIT;
}
break;
}
case IR_NEWREF: