Use a reference instead of making an unnecessary copy. Also use 'const'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188483 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index d8a20f8..4d9497a 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -658,11 +658,11 @@
OutStreamer.EmitCompactUnwindEncoding(MMI->getCompactUnwindEncoding());
MachineModuleInfo &MMI = MF->getMMI();
- std::vector<MCCFIInstruction> Instructions = MMI.getFrameInstructions();
+ const std::vector<MCCFIInstruction> &Instrs = MMI.getFrameInstructions();
bool FoundOne = false;
(void)FoundOne;
- for (std::vector<MCCFIInstruction>::iterator I = Instructions.begin(),
- E = Instructions.end(); I != E; ++I) {
+ for (std::vector<MCCFIInstruction>::const_iterator I = Instrs.begin(),
+ E = Instrs.end(); I != E; ++I) {
if (I->getLabel() == Label) {
emitCFIInstruction(*I);
FoundOne = true;