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Don't assign new registers created during a split to the same stack slot, but

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give them individual stack slots once the are actually spilled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117945 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-11-01 19:49:57 +00:00
parent e8f0823a68
commit a37d5cf342
3 changed files with 3 additions and 16 deletions
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6
lib/CodeGen/InlineSpiller.cpp
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@ -369,12 +369,12 @@ void InlineSpiller::spill(LiveRangeEdit &edit) {
return;
rc_ = mri_.getRegClass(edit.getReg());
stackSlot_ = edit.assignStackSlot(vrm_);
stackSlot_ = vrm_.assignVirt2StackSlot(edit_->getReg());
// Update LiveStacks now that we are committed to spilling.
LiveInterval &stacklvr = lss_.getOrCreateInterval(stackSlot_, rc_);
if (!stacklvr.hasAtLeastOneValue())
stacklvr.getNextValue(SlotIndex(), 0, lss_.getVNInfoAllocator());
assert(stacklvr.empty() && "Just created stack slot not empty");
stacklvr.getNextValue(SlotIndex(), 0, lss_.getVNInfoAllocator());
stacklvr.MergeRangesInAsValue(edit_->getParent(), stacklvr.getValNumInfo(0));
// Iterate over instructions using register.