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Inform SpillPlacement about blocks with defs.

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llvm-svn: 136741
This commit is contained in:
Jakob Stoklund Olesen 2011-08-02 23:04:06 +00:00
parent 4b62c6ea69
commit ffdbb7cc16
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/RegAllocGreedy.cpp
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@ -676,6 +676,7 @@ bool RAGreedy::addSplitConstraints(InterferenceCache::Cursor Intf,
Intf.moveToBlock(BC.Number);
BC.Entry = BI.LiveIn ? SpillPlacement::PrefReg : SpillPlacement::DontCare;
BC.Exit = BI.LiveOut ? SpillPlacement::PrefReg : SpillPlacement::DontCare;
BC.ChangesValue = BI.FirstDef;
if (!Intf.hasInterference())
continue;