Fix a use of uninitialized value. OldCC is set when IsCmpZero || IsSwapped and read...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210168 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index 6993577d19c0ba7e71d8af9a9256f2a71860acd3..a0ee1ee57be83d8a7d5df36107888a4dc3ad1ddc 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -3741,7 +3741,7 @@ optimizeCompareInstr(MachineInstr *CmpInstr, unsigned SrcReg, unsigned SrcReg2,
       continue;
 
     // EFLAGS is used by this instruction.
-    X86::CondCode OldCC;
+    X86::CondCode OldCC = X86::COND_INVALID;
     bool OpcIsSET = false;
     if (IsCmpZero || IsSwapped) {
       // We decode the condition code from opcode.