[MachineOutliner] Replace ostringstream based string concatenation with Twine
This makes my libLLVMCodeGen.so.9svn 4936 bytes smaller.
While here, delete unused #include <map>
llvm-svn: 358089
diff --git a/llvm/lib/CodeGen/MachineOutliner.cpp b/llvm/lib/CodeGen/MachineOutliner.cpp
index 8c06260..7b1750a 100644
--- a/llvm/lib/CodeGen/MachineOutliner.cpp
+++ b/llvm/lib/CodeGen/MachineOutliner.cpp
@@ -73,8 +73,6 @@
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
#include <functional>
-#include <map>
-#include <sstream>
#include <tuple>
#include <vector>
@@ -1094,19 +1092,15 @@
InstructionMapper &Mapper,
unsigned Name) {
- // Create the function name. This should be unique. For now, just hash the
- // module name and include it in the function name plus the number of this
- // function.
- std::ostringstream NameStream;
+ // Create the function name. This should be unique.
// FIXME: We should have a better naming scheme. This should be stable,
// regardless of changes to the outliner's cost model/traversal order.
- NameStream << "OUTLINED_FUNCTION_" << Name;
+ std::string FunctionName = ("OUTLINED_FUNCTION_" + Twine(Name)).str();
// Create the function using an IR-level function.
LLVMContext &C = M.getContext();
- Function *F =
- Function::Create(FunctionType::get(Type::getVoidTy(C), false),
- Function::ExternalLinkage, NameStream.str(), M);
+ Function *F = Function::Create(FunctionType::get(Type::getVoidTy(C), false),
+ Function::ExternalLinkage, FunctionName, M);
// NOTE: If this is linkonceodr, then we can take advantage of linker deduping
// which gives us better results when we outline from linkonceodr functions.