From b70f6734901eec6b20e44ab140d345aa38503a5d Mon Sep 17 00:00:00 2001
From: Chandler Carruth <chandlerc@gmail.com>
Date: Tue, 6 Jan 2015 02:21:37 +0000
Subject: [PATCH] [PM] Move the analysis registry into the Passes.cpp file and
 provide a normal interface for it in Passes.h.

This gives us essentially a single interface for running pass managers
which are provided from the bottom of the LLVM stack through interfaces
at the top of the LLVM stack that populate them with all of the
different analyses available throughout. It also means there is a single
blob of code that needs to include all of the pass headers and needs to
deal with the registry of passes and parsing names.

No functionality changed intended, should just be cleanup.

llvm-svn: 225237
---
 llvm/tools/opt/NewPMDriver.cpp | 16 ++++------------
 llvm/tools/opt/Passes.cpp      | 18 ++++++++++++++++++
 llvm/tools/opt/Passes.h        | 24 ++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 12 deletions(-)

diff --git a/llvm/tools/opt/NewPMDriver.cpp b/llvm/tools/opt/NewPMDriver.cpp
index cdf4e42..9e24f30 100644
--- a/llvm/tools/opt/NewPMDriver.cpp
+++ b/llvm/tools/opt/NewPMDriver.cpp
@@ -17,7 +17,6 @@
 #include "Passes.h"
 #include "llvm/ADT/StringRef.h"
 #include "llvm/Analysis/CGSCCPassManager.h"
-#include "llvm/Analysis/LazyCallGraph.h"
 #include "llvm/Bitcode/BitcodeWriterPass.h"
 #include "llvm/IR/IRPrintingPasses.h"
 #include "llvm/IR/LLVMContext.h"
@@ -38,17 +37,10 @@ bool llvm::runPassPipeline(StringRef Arg0, LLVMContext &Context, Module &M,
   CGSCCAnalysisManager CGAM;
   ModuleAnalysisManager MAM;
 
-#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
-  MAM.registerPass(CREATE_PASS);
-#include "PassRegistry.def"
-
-#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
-  CGAM.registerPass(CREATE_PASS);
-#include "PassRegistry.def"
-
-#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
-  FAM.registerPass(CREATE_PASS);
-#include "PassRegistry.def"
+  // Register all the basic analyses with the managers.
+  registerModuleAnalyses(MAM);
+  registerCGSCCAnalyses(CGAM);
+  registerFunctionAnalyses(FAM);
 
   // Cross register the analysis managers through their proxies.
   MAM.registerPass(FunctionAnalysisManagerModuleProxy(FAM));
diff --git a/llvm/tools/opt/Passes.cpp b/llvm/tools/opt/Passes.cpp
index d20becb..0502f1e 100644
--- a/llvm/tools/opt/Passes.cpp
+++ b/llvm/tools/opt/Passes.cpp
@@ -48,6 +48,24 @@ struct NoOpFunctionPass {
 
 } // End anonymous namespace.
 
+void llvm::registerModuleAnalyses(ModuleAnalysisManager &MAM) {
+#define MODULE_ANALYSIS(NAME, CREATE_PASS) \
+  MAM.registerPass(CREATE_PASS);
+#include "PassRegistry.def"
+}
+
+void llvm::registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM) {
+#define CGSCC_ANALYSIS(NAME, CREATE_PASS) \
+  CGAM.registerPass(CREATE_PASS);
+#include "PassRegistry.def"
+}
+
+void llvm::registerFunctionAnalyses(FunctionAnalysisManager &FAM) {
+#define FUNCTION_ANALYSIS(NAME, CREATE_PASS) \
+  FAM.registerPass(CREATE_PASS);
+#include "PassRegistry.def"
+}
+
 static bool isModulePassName(StringRef Name) {
   if (Name == "no-op-module") return true;
 
diff --git a/llvm/tools/opt/Passes.h b/llvm/tools/opt/Passes.h
index 3bd6752..5405085 100644
--- a/llvm/tools/opt/Passes.h
+++ b/llvm/tools/opt/Passes.h
@@ -19,8 +19,32 @@
 #include "llvm/ADT/StringRef.h"
 
 namespace llvm {
+class CGSCCAnalysisManager;
+class FunctionAnalysisManager;
+class ModuleAnalysisManager;
 class ModulePassManager;
 
+/// \brief Registers all available module analysis passes.
+///
+/// This is an interface that can be used to populate a \c
+/// ModuleAnalysisManager with all registered module analyses. Callers can
+/// still manually register any additional analyses.
+void registerModuleAnalyses(ModuleAnalysisManager &MAM);
+
+/// \brief Registers all available CGSCC analysis passes.
+///
+/// This is an interface that can be used to populate a \c CGSCCAnalysisManager
+/// with all registered CGSCC analyses. Callers can still manually register any
+/// additional analyses.
+void registerCGSCCAnalyses(CGSCCAnalysisManager &CGAM);
+
+/// \brief Registers all available function analysis passes.
+///
+/// This is an interface that can be used to populate a \c
+/// FunctionAnalysisManager with all registered function analyses. Callers can
+/// still manually register any additional analyses.
+void registerFunctionAnalyses(FunctionAnalysisManager &FAM);
+
 /// \brief Parse a textual pass pipeline description into a \c ModulePassManager.
 ///
 /// The format of the textual pass pipeline description looks something like:
-- 
2.7.4