[PATCH] llvm-ar shouldn't need targets

[Chris Bieneman]

Hi rafael, chandlerc,

There isn't any code in llvm-ar that actually uses targets, but it links them because it calls a few InitializeAll* functions. If we remove those calls, we can remove the dependency on the targets, which makes building llvm-ar a lot faster.

http://reviews.llvm.org/D9359

Files:
  tools/llvm-ar/CMakeLists.txt
  tools/llvm-ar/llvm-ar.cpp

Index: tools/llvm-ar/CMakeLists.txt
===================================================================
--- tools/llvm-ar/CMakeLists.txt
+++ tools/llvm-ar/CMakeLists.txt
@@ -1,5 +1,4 @@
 set(LLVM_LINK_COMPONENTS
-  ${LLVM_TARGETS_TO_BUILD}
   Core
   Object
   Support
Index: tools/llvm-ar/llvm-ar.cpp
===================================================================
--- tools/llvm-ar/llvm-ar.cpp
+++ tools/llvm-ar/llvm-ar.cpp
@@ -1043,10 +1043,6 @@
     "  This program archives bitcode files into single libraries\n"
   );
 
-  llvm::InitializeAllTargetInfos();
-  llvm::InitializeAllTargetMCs();
-  llvm::InitializeAllAsmParsers();
-
   StringRef Stem = sys::path::stem(ToolName);
   if (Stem.find("ar") != StringRef::npos)
     return ar_main();

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