switch to using a smallvector to avoid allocations for most normal size instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131837 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCDisassembler/Disassembler.cpp b/lib/MC/MCDisassembler/Disassembler.cpp
index 29fc192..6e636f0 100644
--- a/lib/MC/MCDisassembler/Disassembler.cpp
+++ b/lib/MC/MCDisassembler/Disassembler.cpp
@@ -147,8 +147,8 @@
if (!DisAsm->getInstruction(Inst, Size, MemoryObject, PC, /*REMOVE*/ nulls()))
return 0;
- std::string InsnStr;
- raw_string_ostream OS(InsnStr);
+ SmallVector<char, 64> InsnStr;
+ raw_svector_ostream OS(InsnStr);
IP->printInst(&Inst, OS);
OS.flush();