From cdcab38ff5d0f5fad15f173d533077f552c59b85 Mon Sep 17 00:00:00 2001 From: Cameron Zwarich Date: Tue, 12 Feb 2013 03:49:20 +0000 Subject: Add blocks to the LiveIntervalAnalysis RegMaskBlocks array when splitting a critical edge. llvm-svn: 174936 --- llvm/lib/CodeGen/MachineBasicBlock.cpp | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp') diff --git a/llvm/lib/CodeGen/MachineBasicBlock.cpp b/llvm/lib/CodeGen/MachineBasicBlock.cpp index 71d59f0b4b38..df1c7c2a66da 100644 --- a/llvm/lib/CodeGen/MachineBasicBlock.cpp +++ b/llvm/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(); SlotIndexes *Indexes = P->getAnalysisIfAvailable(); - 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()) { + 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 -- cgit v1.2.3