Pass a vector around to reduce dynamic allocation
Throw the RawInst class in an anon namespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8990 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Bytecode/Reader/InstructionReader.cpp b/lib/Bytecode/Reader/InstructionReader.cpp
index b085581..1b2ada0 100644
--- a/lib/Bytecode/Reader/InstructionReader.cpp
+++ b/lib/Bytecode/Reader/InstructionReader.cpp
@@ -14,15 +14,16 @@
#include "llvm/iPHINode.h"
#include "llvm/iOther.h"
-struct RawInst { // The raw fields out of the bytecode stream...
- unsigned NumOperands;
- unsigned Opcode;
- unsigned Type;
-
- RawInst(const unsigned char *&Buf, const unsigned char *EndBuf,
- std::vector<unsigned> &Args);
-
-};
+namespace {
+ struct RawInst { // The raw fields out of the bytecode stream...
+ unsigned NumOperands;
+ unsigned Opcode;
+ unsigned Type;
+
+ RawInst(const unsigned char *&Buf, const unsigned char *EndBuf,
+ std::vector<unsigned> &Args);
+ };
+}
@@ -102,8 +103,9 @@
Instruction *BytecodeParser::ParseInstruction(const unsigned char *&Buf,
- const unsigned char *EndBuf) {
- std::vector<unsigned> Args;
+ const unsigned char *EndBuf,
+ std::vector<unsigned> &Args) {
+ Args.clear();
RawInst RI(Buf, EndBuf, Args);
const Type *InstTy = getType(RI.Type);