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Add MachineLoopRanges analysis.

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A MachineLoopRange contains the intervals of slot indexes covered by the blocks
in a loop. This representation of the loop blocks is more efficient to compare
against interfering registers during register coalescing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121917 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-12-15 23:41:23 +00:00
parent 7a905a82f7
commit ceadc01e91
5 changed files with 176 additions and 0 deletions
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include/llvm/InitializePasses.h
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@@ -142,6 +142,7 @@ void initializeMachineCSEPass(PassRegistry&);
void initializeMachineDominatorTreePass(PassRegistry&);
void initializeMachineLICMPass(PassRegistry&);
void initializeMachineLoopInfoPass(PassRegistry&);
void initializeMachineLoopRangesPass(PassRegistry&);
void initializeMachineModuleInfoPass(PassRegistry&);
void initializeMachineSinkingPass(PassRegistry&);
void initializeMachineVerifierPassPass(PassRegistry&);