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
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 @@
" 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 @@
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