[Mips] Create MipsTargetHandler class object using factory functions

Right now MIPS instantiates MipsTargetHandler using Mips32ELType and
Mips64ELType. And in the future we can add a couple more types. That
leads to the large object file size because compiler has to create
copies of MipsTargetHandler and all realted classes for each types used
for instantiation.

The patch introduces two factory functions and puts each of them into
the separate cpp file. That allows to reduce size of single object file.

llvm-svn: 234728

1 files changed, 4 insertions, 6 deletions

diff --git a/lld/lib/ReaderWriter/ELF/Mips/MipsLinkingContext.cpp b/lld/lib/ReaderWriter/ELF/Mips/MipsLinkingContext.cpp
index 32e0484943f..72c5d935b6a 100644
--- a/lld/lib/ReaderWriter/ELF/Mips/MipsLinkingContext.cpp
+++ b/lld/lib/ReaderWriter/ELF/Mips/MipsLinkingContext.cpp
@@ -24,15 +24,13 @@ elf::createMipsLinkingContext(llvm::Triple triple) {
   return nullptr;
 }
 
-typedef std::unique_ptr<TargetHandler> TargetHandlerPtr;
-
-static TargetHandlerPtr createTarget(llvm::Triple triple,
-                                     MipsLinkingContext &ctx) {
+static std::unique_ptr<TargetHandler> createTarget(llvm::Triple triple,
+                                                   MipsLinkingContext &ctx) {
   switch (triple.getArch()) {
   case llvm::Triple::mipsel:
-    return TargetHandlerPtr(new MipsTargetHandler<Mips32ELType>(ctx));
+    return createMips32ELTargetHandler(ctx);
   case llvm::Triple::mips64el:
-    return TargetHandlerPtr(new MipsTargetHandler<Mips64ELType>(ctx));
+    return createMips64ELTargetHandler(ctx);
   default:
     llvm_unreachable("Unhandled arch");
   }