diff options
| 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 | |
| parent | dbf10c4349bb746e6120ff1195c1ce7e21bebf93 (diff) | |
| download | llvm-dd58fa4869f9bff909720aaa428487a20fab1391.tar.gz llvm-dd58fa4869f9bff909720aaa428487a20fab1391.tar.bz2 llvm-dd58fa4869f9bff909720aaa428487a20fab1391.tar.xz | |
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
| -rw-r--r-- | include/llvm/CodeGen/LiveIntervalAnalysis.h | 7 | ||||
| -rw-r--r-- | lib/CodeGen/MachineBasicBlock.cpp | 8 |
2 files changed, 13 insertions, 2 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h index 3c6a2be94f..b6cc111b73 100644 --- a/include/llvm/CodeGen/LiveIntervalAnalysis.h +++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h @@ -214,6 +214,13 @@ namespace llvm { return Indexes->getMBBFromIndex(index); } + void insertMBBInMaps(MachineBasicBlock *MBB) { + Indexes->insertMBBInMaps(MBB); + assert(unsigned(MBB->getNumber()) == RegMaskBlocks.size() && + "Blocks must be added in order."); + RegMaskBlocks.push_back(std::make_pair(MBB->getNumber(), 0)); + } + SlotIndex InsertMachineInstrInMaps(MachineInstr *MI) { return Indexes->insertMachineInstrInMaps(MI); } diff --git a/lib/CodeGen/MachineBasicBlock.cpp b/lib/CodeGen/MachineBasicBlock.cpp index 71d59f0b4b..df1c7c2a66 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 |