Find anchoring end points for repairIntervalsInRange and repairIndexesInRange
automatically.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175673 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 99d3607..43d0655 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -1150,15 +1150,8 @@
LV->addVirtualRegisterKilled(Reg, NewMIs[1]);
}
- MachineBasicBlock::iterator Begin;
- MachineBasicBlock::iterator End;
SmallVector<unsigned, 4> OrigRegs;
if (LIS) {
- Begin = MachineBasicBlock::iterator(NewMIs[0]);
- if (Begin != MBB->begin())
- --Begin;
- End = llvm::next(MachineBasicBlock::iterator(MI));
-
for (MachineInstr::const_mop_iterator MOI = MI.operands_begin(),
MOE = MI.operands_end(); MOI != MOE; ++MOI) {
if (MOI->isReg())
@@ -1169,8 +1162,11 @@
MI.eraseFromParent();
// Update LiveIntervals.
- if (LIS)
+ if (LIS) {
+ MachineBasicBlock::iterator Begin(NewMIs[0]);
+ MachineBasicBlock::iterator End(NewMIs[1]);
LIS->repairIntervalsInRange(MBB, Begin, End, OrigRegs);
+ }
mi = NewMIs[1];
if (TransformSuccess)
@@ -1576,9 +1572,6 @@
}
// Udpate LiveIntervals.
- if (LIS) {
- if (MBBI != MBB->begin())
- --MBBI;
+ if (LIS)
LIS->repairIntervalsInRange(MBB, MBBI, EndMBBI, OrigRegs);
- }
}