eliminate temporary vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34161 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachOWriter.cpp b/lib/CodeGen/MachOWriter.cpp
index 384dd3e..fe9d997 100644
--- a/lib/CodeGen/MachOWriter.cpp
+++ b/lib/CodeGen/MachOWriter.cpp
@@ -779,9 +779,9 @@
       //
       switch (CE->getOpcode()) {
       case Instruction::GetElementPtr: {
-        std::vector<Value*> Indexes(CE->op_begin()+1, CE->op_end());
+        SmallVector<Value*, 8> Indices(CE->op_begin()+1, CE->op_end());
         ScatteredOffset = TD->getIndexedOffset(CE->getOperand(0)->getType(),
-                                               Indexes);
+                                               &Indices[0], Indices.size());
         WorkList.push_back(CPair(CE->getOperand(0), PA));
         break;
       }