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| author | Cameron Zwarich <zwarich@apple.com> | 2013-02-12 03:49:20 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2013-02-12 03:49:20 +0000 |
| commit | dd58fa4869f9bff909720aaa428487a20fab1391 (patch) | |
| tree | cef58151d341cdd826ec0953bd84e5998ff05880 /lib/CodeGen | |
| parent | dbf10c4349bb746e6120ff1195c1ce7e21bebf93 (diff) | |
| download | external_llvm-dd58fa4869f9bff909720aaa428487a20fab1391.zip external_llvm-dd58fa4869f9bff909720aaa428487a20fab1391.tar.gz external_llvm-dd58fa4869f9bff909720aaa428487a20fab1391.tar.bz2 | |
Add blocks to the LiveIntervalAnalysis RegMaskBlocks array when splitting
a critical edge.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174936 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 71d59f0..df1c7c2 100644 --- a/lib/CodeGen/MachineBasicBlock.cpp +++ b/lib/CodeGen/MachineBasicBlock.cpp @@ -664,8 +664,12 @@ MachineBasicBlock::SplitCriticalEdge(MachineBasicBlock *Succ, Pass *P) { " BB#" << getNumber() << " -- BB#" << NMBB->getNumber() << " -- BB#" << Succ->getNumber() << '\n'); + + LiveIntervals *LIS = P->getAnalysisIfAvailable<LiveIntervals>(); SlotIndexes *Indexes = P->getAnalysisIfAvailable<SlotIndexes>(); - if (Indexes) + if (LIS) + LIS->insertMBBInMaps(NMBB); + else if (Indexes) Indexes->insertMBBInMaps(NMBB); // On some targets like Mips, branches may kill virtual registers. Make sure @@ -771,7 +775,7 @@ MachineBasicBlock::SplitCriticalEdge(MachineBasicBlock *Succ, Pass *P) { LV->addNewBlock(NMBB, this, Succ); } - if (LiveIntervals *LIS = P->getAnalysisIfAvailable<LiveIntervals>()) { + if (LIS) { // After splitting the edge and updating SlotIndexes, live intervals may be // in one of two situations, depending on whether this block was the last in // the function. If the original block was the last in the function, all live |