Convert push_back loops into append calls.

No functionality change intended.

llvm-svn: 230849
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp
index 36cbe08..4cdca97 100644
--- a/llvm/lib/Target/X86/X86InstrInfo.cpp
+++ b/llvm/lib/Target/X86/X86InstrInfo.cpp
@@ -5291,8 +5291,8 @@
       return nullptr;
 
     // Folding a normal load. Just copy the load's address operands.
-    for (unsigned i = NumOps - X86::AddrNumOperands; i != NumOps; ++i)
-      MOs.push_back(LoadMI->getOperand(i));
+    MOs.append(LoadMI->operands_begin() + NumOps - X86::AddrNumOperands,
+               LoadMI->operands_begin() + NumOps);
     break;
   }
   }