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Backed out changeset 7e831598f812 due to tinderbox oranges.

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This commit is contained in:
Nicholas Nethercote 2010-09-28 22:39:19 -07:00
parent f914345ea4
commit 1011a3dade
1 changed files with 9 additions and 20 deletions
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29
js/src/jstracer.cpp
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@ -8414,8 +8414,7 @@ TraceRecorder::alu(LOpcode v, jsdouble v0, jsdouble v1, LIns* s0, LIns* s1)
* the result is -0 in this case, which is not in the integer domain.
*/
guard(false, lir->ins2ImmI(LIR_lti, d0, 0), exit);
if (branch)
branch->setTarget(lir->ins0(LIR_label));
branch->setTarget(lir->ins0(LIR_label));
break;
}
#endif
@ -12949,25 +12948,16 @@ TraceRecorder::setElem(int lval_spindex, int idx_spindex, int v_spindex)
if (!js_EnsureDenseArrayCapacity(cx, obj, idx.toInt32()))
RETURN_STOP_A("couldn't ensure dense array capacity for setelem");
// Grow the array if the index exceeds the capacity. This happens
// rarely, eg. less than 1% of the time in SunSpider.
LIns* capacity_ins =
addName(stobj_get_fslot_uint32(obj_ins, JSObject::JSSLOT_DENSE_ARRAY_CAPACITY),
"capacity");
LIns* inRange_ins = lir->ins2(LIR_ltui, idx_ins, capacity_ins);
if (inRange_ins->isImmI()) {
// The (index < capacity) check can be converted to a constant 1
// if it's subsumed by a previous guard, in which case we don't
// need to re-check. It should not have been converted to a
// constant 0.
JS_ASSERT(inRange_ins->immI() == 1);
} else {
// Grow the array if (index >= capacity). This happens rarely,
// eg. less than 1% of the time in SunSpider.
LIns* br = lir->insBranch(LIR_jt, lir->ins2(LIR_ltui, idx_ins, capacity_ins), NULL);
LIns* args[] = { idx_ins, obj_ins, cx_ins };
LIns* res_ins = lir->insCall(&js_EnsureDenseArrayCapacity_ci, args);
guard(false, lir->insEqI_0(res_ins), mismatchExit);
br->setTarget(lir->ins0(LIR_label));
}
LIns* br = lir->insBranch(LIR_jt, lir->ins2(LIR_ltui, idx_ins, capacity_ins), NULL);
LIns* args[] = { idx_ins, obj_ins, cx_ins };
LIns* res_ins = lir->insCall(&js_EnsureDenseArrayCapacity_ci, args);
guard(false, lir->insEqI_0(res_ins), mismatchExit);
br->setTarget(lir->ins0(LIR_label));
// Get the address of the element.
LIns *dslots_ins =
@ -12995,8 +12985,7 @@ TraceRecorder::setElem(int lval_spindex, int idx_spindex, int v_spindex)
LIns* res_ins2 = addName(lir->insCall(&js_Array_dense_setelem_hole_ci, args2),
"hasNoIndexedProperties");
guard(false, lir->insEqI_0(res_ins2), mismatchExit);
if (br2)
br2->setTarget(lir->ins0(LIR_label));
br2->setTarget(lir->ins0(LIR_label));
// Right, actually set the element.
box_value_into(v, v_ins, addr_ins, 0, ACCSET_OTHER);