[llvm-exegesis] Fix warning in r22752: Initialize IsSnippetSetupComplete.

llvm-svn: 335467
diff --git a/llvm/tools/llvm-exegesis/lib/Assembler.cpp b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
index f5be120..9410c70 100644
--- a/llvm/tools/llvm-exegesis/lib/Assembler.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
@@ -158,7 +158,7 @@
   Properties.set(llvm::MachineFunctionProperties::Property::NoVRegs);
   Properties.reset(llvm::MachineFunctionProperties::Property::IsSSA);
   std::vector<llvm::MCInst> SnippetWithSetup;
-  bool IsSnippetSetupComplete;
+  bool IsSnippetSetupComplete = RegsToDef.empty();
   if (ET) {
     SnippetWithSetup =
         generateSnippetSetupCode(RegsToDef, *ET, IsSnippetSetupComplete);