Get rid of the EdgeMapping map. Instead, just check for BasicBlock
changes before doing phi lowering for switches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102809 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Alpha/AlphaISelLowering.cpp b/lib/Target/Alpha/AlphaISelLowering.cpp
index ec845d0..1d85f12 100644
--- a/lib/Target/Alpha/AlphaISelLowering.cpp
+++ b/lib/Target/Alpha/AlphaISelLowering.cpp
@@ -832,8 +832,7 @@
MachineBasicBlock *
AlphaTargetLowering::EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *BB,
- DenseMap<MachineBasicBlock*, MachineBasicBlock*> *EM) const {
+ MachineBasicBlock *BB) const {
const TargetInstrInfo *TII = getTargetMachine().getInstrInfo();
assert((MI->getOpcode() == Alpha::CAS32 ||
MI->getOpcode() == Alpha::CAS64 ||
@@ -864,11 +863,6 @@
MachineBasicBlock *llscMBB = F->CreateMachineBasicBlock(LLVM_BB);
MachineBasicBlock *sinkMBB = F->CreateMachineBasicBlock(LLVM_BB);
- // Inform sdisel of the edge changes.
- for (MachineBasicBlock::succ_iterator I = BB->succ_begin(),
- E = BB->succ_end(); I != E; ++I)
- EM->insert(std::make_pair(*I, sinkMBB));
-
sinkMBB->transferSuccessors(thisMBB);
F->insert(It, llscMBB);