fix compiler warning

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83132 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/PrologEpilogInserter.cpp b/lib/CodeGen/PrologEpilogInserter.cpp
index 28681cad5fef918250c368ed4685222d0ede6b72..73e3c0a9c7808c7e69eb42b739797420ba5a552c 100644 (file)
--- a/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/lib/CodeGen/PrologEpilogInserter.cpp
@@ -739,7 +739,7 @@ void PEI::scavengeFrameVirtualRegs(MachineFunction &Fn) {
     RS->enterBasicBlock(BB);
 
     unsigned CurrentVirtReg = 0;
-    unsigned CurrentScratchReg;
+    unsigned CurrentScratchReg = 0;
 
     for (MachineBasicBlock::iterator I = BB->begin(); I != BB->end(); ++I) {
       MachineInstr *MI = I;