Extracted ObjCARC.cpp into its own library libLLVMObjCARCOpts in preparation for refactoring the ARC Optimizer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173647 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/CMakeLists.txt

@@ -5,3 +5,4 @@ add_subdirectory(Scalar)
 add_subdirectory(IPO)
 add_subdirectory(Vectorize)
 add_subdirectory(Hello)
+add_subdirectory(ObjCARC)

lib/Transforms/IPO/LLVMBuild.txt

@@ -20,4 +20,4 @@ type = Library
 name = IPO
 parent = Transforms
 library_name = ipo
-required_libraries = Analysis Core IPA InstCombine Scalar Vectorize Support Target TransformUtils
+required_libraries = Analysis Core IPA InstCombine Scalar Vectorize Support Target TransformUtils ObjCARC

lib/Transforms/LLVMBuild.txt

@@ -16,7 +16,7 @@
 ;===------------------------------------------------------------------------===;
 
 [common]
-subdirectories = IPO InstCombine Instrumentation Scalar Utils Vectorize
+subdirectories = IPO InstCombine Instrumentation Scalar Utils Vectorize ObjCARC
 
 [component_0]
 type = Group

lib/Transforms/Makefile

@@ -8,7 +8,7 @@
 ##===----------------------------------------------------------------------===##
 
 LEVEL = ../..
-PARALLEL_DIRS = Utils Instrumentation Scalar InstCombine IPO Vectorize Hello
+PARALLEL_DIRS = Utils Instrumentation Scalar InstCombine IPO Vectorize Hello ObjCARC
 
 include $(LEVEL)/Makefile.config
 

lib/Transforms/ObjCARC/CMakeLists.txt

@@ -0,0 +1,6 @@
+add_llvm_library(LLVMObjCARCOpts
+  ObjCARC.cpp
+  ObjCARCOpts.cpp
+  )
+
+add_dependencies(LLVMObjCARCOpts intrinsics_gen)

lib/Transforms/ObjCARC/LLVMBuild.txt

@@ -0,0 +1,23 @@
+;===- ./lib/Transforms/ObjCARC/LLVMBuild.txt ---       ---------*- Conf -*--===;
+;
+;                     The LLVM Compiler Infrastructure
+;
+; This file is distributed under the University of Illinois Open Source
+; License. See LICENSE.TXT for details.
+;
+;===------------------------------------------------------------------------===;
+;
+; This is an LLVMBuild description file for the components in this subdirectory.
+;
+; For more information on the LLVMBuild system, please see:
+;
+;   http://llvm.org/docs/LLVMBuild.html
+;
+;===------------------------------------------------------------------------===;
+
+[component_0]
+type = Library
+name = ObjCARC
+parent = Transforms
+library_name = ObjCARCOpts
+required_libraries = Analysis Core InstCombine Support Target TransformUtils

lib/Transforms/ObjCARC/Makefile

@@ -0,0 +1,15 @@
+##===- lib/Transforms/ObjCARC/Makefile ---------------------*- Makefile -*-===##
+#
+#                     The LLVM Compiler Infrastructure
+#
+# This file is distributed under the University of Illinois Open Source
+# License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+
+LEVEL = ../../..
+LIBRARYNAME = LLVMObjCARCOpts
+BUILD_ARCHIVE = 1
+
+include $(LEVEL)/Makefile.common
+

lib/Transforms/ObjCARC/ObjCARC.cpp

@@ -0,0 +1,38 @@
+//===-- ObjCARC.cpp --------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements common infrastructure for libLLVMObjCARCOpts.a, which
+// implements several scalar transformations over the LLVM intermediate
+// representation, including the C bindings for that library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Transforms/ObjCARC.h"
+#include "llvm-c/Initialization.h"
+#include "llvm/Analysis/Passes.h"
+#include "llvm/Analysis/Verifier.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/InitializePasses.h"
+#include "llvm/PassManager.h"
+
+using namespace llvm;
+
+/// initializeObjCARCOptsPasses - Initialize all passes linked into the
+/// ObjCARCOpts library.
+void llvm::initializeObjCARCOpts(PassRegistry &Registry) {
+  initializeObjCARCAliasAnalysisPass(Registry);
+  initializeObjCARCAPElimPass(Registry);
+  initializeObjCARCExpandPass(Registry);
+  initializeObjCARCContractPass(Registry);
+  initializeObjCARCOptPass(Registry);
+}
+
+void LLVMInitializeObjCARCOpts(LLVMPassRegistryRef R) {
+  initializeObjCARCOpts(*unwrap(R));
+}

lib/Transforms/ObjCARC/ObjCARCOpts.cpp

@@ -1,4 +1,4 @@
-//===- ObjCARC.cpp - ObjC ARC Optimization --------------------------------===//
+//===- ObjCARCOpts.cpp - ObjC ARC Optimization ----------------------------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -932,7 +932,7 @@ ObjCARCAliasAnalysis::getModRefInfo(ImmutableCallSite CS1,
 /// @{
 
 #include "llvm/Support/InstIterator.h"
-#include "llvm/Transforms/Scalar.h"
+#include "llvm/Transforms/ObjCARC.h"
 
 namespace {
   /// \brief Early ARC transformations.

lib/Transforms/Scalar/CMakeLists.txt

@@ -21,7 +21,6 @@ add_llvm_library(LLVMScalarOpts
   LoopUnswitch.cpp
   LowerAtomic.cpp
   MemCpyOptimizer.cpp
-  ObjCARC.cpp
   Reassociate.cpp
   Reg2Mem.cpp
   SCCP.cpp

lib/Transforms/Scalar/Scalar.cpp

@@ -50,11 +50,6 @@ void llvm::initializeScalarOpts(PassRegistry &Registry) {
   initializeLowerAtomicPass(Registry);
   initializeLowerExpectIntrinsicPass(Registry);
   initializeMemCpyOptPass(Registry);
-  initializeObjCARCAliasAnalysisPass(Registry);
-  initializeObjCARCAPElimPass(Registry);
-  initializeObjCARCExpandPass(Registry);
-  initializeObjCARCContractPass(Registry);
-  initializeObjCARCOptPass(Registry);
   initializeReassociatePass(Registry);
   initializeRegToMemPass(Registry);
   initializeSCCPPass(Registry);