add initializers for clarity. Add missing assignment of PrevLastUseOp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83481 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index a2a8af3..66ec0b3 100644
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -782,8 +782,8 @@
unsigned CurrentScratchReg = 0;
unsigned PrevScratchReg = 0;
int PrevValue;
- MachineInstr *PrevLastUseMI;
- unsigned PrevLastUseOp;
+ MachineInstr *PrevLastUseMI = NULL;
+ unsigned PrevLastUseOp = 0;
// The instruction stream may change in the loop, so check BB->end()
// directly.
@@ -875,6 +875,7 @@
if (MI->getOperand(i).isKill()) {
PrevScratchReg = CurrentScratchReg;
PrevLastUseMI = MI;
+ PrevLastUseOp = i;
CurrentScratchReg = CurrentVirtReg = 0;
}
}