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Bug 942871 - IonMonkey: Convert trySplitAfterLastRegisterUse to use splitAt. r=bhackett

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This commit is contained in:
Dan Gohman 2013-11-25 21:01:13 -08:00
parent c879f75bbd
commit 42794670af
1 changed files with 3 additions and 25 deletions
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28
js/src/jit/BacktrackingAllocator.cpp
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@ -1548,33 +1548,11 @@ BacktrackingAllocator::trySplitAfterLastRegisterUse(LiveInterval *interval, bool
return true; return true;
} }
LiveInterval *preInterval = LiveInterval::New(alloc(), interval->vreg(), 0); SplitPositionVector splitPositions;
LiveInterval *postInterval = LiveInterval::New(alloc(), interval->vreg(), 0); if (!splitPositions.append(lastRegisterTo))
for (size_t i = 0; i < interval->numRanges(); i++) {
const LiveInterval::Range *range = interval->getRange(i);
if (range->from < lastRegisterTo) {
CodePosition to = (range->to <= lastRegisterTo) ? range->to : lastRegisterTo;
if (!preInterval->addRange(range->from, to))
return false;
}
if (lastRegisterFrom < range->to) {
CodePosition from = (lastRegisterFrom <= range->from) ? range->from : lastRegisterFrom;
if (!postInterval->addRange(from, range->to))
return false;
}
}
LiveIntervalVector newIntervals;
if (!newIntervals.append(preInterval) || !newIntervals.append(postInterval))
return false; return false;
distributeUses(interval, newIntervals);
*success = true; *success = true;
return split(interval, newIntervals) && requeueIntervals(newIntervals); return splitAt(interval, splitPositions);
} }
bool bool