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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-28 02:32:57 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-05-28 02:32:57 +0000 |
| commit | b2abfa0bf30edf292a27a06e091d03983e644c9b (patch) | |
| tree | 036a9b0db655d8563249f1c9774da62de6943537 /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | 5e93d1c61553628a9104ac19ce5edf165a7229b2 (diff) | |
| download | llvm-b2abfa0bf30edf292a27a06e091d03983e644c9b.tar.gz llvm-b2abfa0bf30edf292a27a06e091d03983e644c9b.tar.bz2 llvm-b2abfa0bf30edf292a27a06e091d03983e644c9b.tar.xz | |
Add SplitAnalysis::getNumLiveBlocks().
It is important that this function returns the same number of live blocks as
countLiveBlocks(CurLI) because live range splitting uses the number of live
blocks to ensure it is making progress.
This is in preparation of supporting duplicate UseBlock entries for basic blocks
that have a virtual register live-in and live-out, but not live-though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132244 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index af77b476c8..2d03760fc7 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -976,7 +976,7 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg, DebugVars->splitRegister(VirtReg.reg, LREdit.regs()); LRStage.resize(MRI->getNumVirtRegs()); - unsigned OrigBlocks = SA->getNumThroughBlocks() + SA->getUseBlocks().size(); + unsigned OrigBlocks = SA->getNumLiveBlocks(); // Sort out the new intervals created by splitting. We get four kinds: // - Remainder intervals should not be split again. |