X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=include%2Fllvm%2FPassSupport.h;h=6cb6516412e8c750f4a83910b961d60f96077938;hp=f3cfc3fb3a53e7a5bd33d3cb28b48f1dbc01a74c;hb=a4d17df846a9abc1be9a73862452cf4dfcd33689;hpb=102e2d3c82e3671cdabbfed9012792cd1bb3493a

diff --git a/include/llvm/PassSupport.h b/include/llvm/PassSupport.h
index f3cfc3fb3a5..6cb6516412e 100644
--- a/include/llvm/PassSupport.h
+++ b/include/llvm/PassSupport.h
@@ -2,8 +2,8 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
@@ -18,106 +18,85 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_PASS_SUPPORT_H
-#define LLVM_PASS_SUPPORT_H
+#ifndef LLVM_PASSSUPPORT_H
+#define LLVM_PASSSUPPORT_H
 
-#include "llvm/System/IncludeFile.h"
-// No need to include Pass.h, we are being included by it!
+#include "Pass.h"
+#include "llvm/InitializePasses.h"
+#include "llvm/PassInfo.h"
+#include "llvm/PassRegistry.h"
+#include "llvm/Support/Atomic.h"
+#include "llvm/Support/Valgrind.h"
+#include <vector>
 
 namespace llvm {
 
 class TargetMachine;
 
-//===---------------------------------------------------------------------------
-/// PassInfo class - An instance of this class exists for every pass known by
-/// the system, and can be obtained from a live Pass by calling its
-/// getPassInfo() method.  These objects are set up by the RegisterPass<>
-/// template, defined below.
-///
-class PassInfo {
-  const char           *PassName;      // Nice name for Pass
-  const char           *PassArgument;  // Command Line argument to run this pass
-  const std::type_info &TypeInfo;      // type_info object for this Pass class
-  bool IsAnalysisGroup;                // True if an analysis group.
-  std::vector<const PassInfo*> ItfImpl;// Interfaces implemented by this pass
-
-  Pass *(*NormalCtor)();               // No argument ctor
-  Pass *(*TargetCtor)(TargetMachine&);   // Ctor taking TargetMachine object...
-
-public:
-  /// PassInfo ctor - Do not call this directly, this should only be invoked
-  /// through RegisterPass.
-  PassInfo(const char *name, const char *arg, const std::type_info &ti,
-           Pass *(*normal)() = 0, Pass *(*targetctor)(TargetMachine &) = 0)
-    : PassName(name), PassArgument(arg), TypeInfo(ti), IsAnalysisGroup(false),
-      NormalCtor(normal), TargetCtor(targetctor)  {
+#define CALL_ONCE_INITIALIZATION(function) \
+  static volatile sys::cas_flag initialized = 0; \
+  sys::cas_flag old_val = sys::CompareAndSwap(&initialized, 1, 0); \
+  if (old_val == 0) { \
+    function(Registry); \
+    sys::MemoryFence(); \
+    TsanIgnoreWritesBegin(); \
+    TsanHappensBefore(&initialized); \
+    initialized = 2; \
+    TsanIgnoreWritesEnd(); \
+  } else { \
+    sys::cas_flag tmp = initialized; \
+    sys::MemoryFence(); \
+    while (tmp != 2) { \
+      tmp = initialized; \
+      sys::MemoryFence(); \
+    } \
+  } \
+  TsanHappensAfter(&initialized);
+
+#define INITIALIZE_PASS(passName, arg, name, cfg, analysis) \
+  static void* initialize##passName##PassOnce(PassRegistry &Registry) { \
+    PassInfo *PI = new PassInfo(name, arg, & passName ::ID, \
+      PassInfo::NormalCtor_t(callDefaultCtor< passName >), cfg, analysis); \
+    Registry.registerPass(*PI, true); \
+    return PI; \
+  } \
+  void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
+    CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \
   }
 
-  /// getPassName - Return the friendly name for the pass, never returns null
-  ///
-  const char *getPassName() const { return PassName; }
-  void setPassName(const char *Name) { PassName = Name; }
-
-  /// getPassArgument - Return the command line option that may be passed to
-  /// 'opt' that will cause this pass to be run.  This will return null if there
-  /// is no argument.
-  ///
-  const char *getPassArgument() const { return PassArgument; }
-
-  /// getTypeInfo - Return the type_info object for the pass...
-  ///
-  const std::type_info &getTypeInfo() const { return TypeInfo; }
-
-  /// isAnalysisGroup - Return true if this is an analysis group, not a normal
-  /// pass.
-  ///
-  bool isAnalysisGroup() const { return IsAnalysisGroup; }
-  void SetIsAnalysisGroup() { IsAnalysisGroup = true; }
-
-  /// getNormalCtor - Return a pointer to a function, that when called, creates
-  /// an instance of the pass and returns it.  This pointer may be null if there
-  /// is no default constructor for the pass.
-  ///
-  Pass *(*getNormalCtor() const)() {
-    return NormalCtor;
-  }
-  void setNormalCtor(Pass *(*Ctor)()) {
-    NormalCtor = Ctor;
-  }
-
-  /// createPass() - Use this method to create an instance of this pass.
-  Pass *createPass() const {
-    assert((!isAnalysisGroup() || NormalCtor) &&
-           "No default implementation found for analysis group!");
-    assert(NormalCtor &&
-           "Cannot call createPass on PassInfo without default ctor!");
-    return NormalCtor();
+#define INITIALIZE_PASS_BEGIN(passName, arg, name, cfg, analysis) \
+  static void* initialize##passName##PassOnce(PassRegistry &Registry) {
+
+#define INITIALIZE_PASS_DEPENDENCY(depName) \
+    initialize##depName##Pass(Registry);
+#define INITIALIZE_AG_DEPENDENCY(depName) \
+    initialize##depName##AnalysisGroup(Registry);
+
+#define INITIALIZE_PASS_END(passName, arg, name, cfg, analysis) \
+    PassInfo *PI = new PassInfo(name, arg, & passName ::ID, \
+      PassInfo::NormalCtor_t(callDefaultCtor< passName >), cfg, analysis); \
+    Registry.registerPass(*PI, true); \
+    return PI; \
+  } \
+  void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
+    CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \
   }
 
-  /// getTargetCtor - Return a pointer to a function that creates an instance of
-  /// the pass and returns it.  This returns a constructor for a version of the
-  /// pass that takes a TargetMachine object as a parameter.
-  ///
-  Pass *(*getTargetCtor() const)(TargetMachine &) {
-    return TargetCtor;
-  }
+#define INITIALIZE_PASS_WITH_OPTIONS(PassName, Arg, Name, Cfg, Analysis) \
+  INITIALIZE_PASS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
+  PassName::registerOptions(); \
+  INITIALIZE_PASS_END(PassName, Arg, Name, Cfg, Analysis)
 
-  /// addInterfaceImplemented - This method is called when this pass is
-  /// registered as a member of an analysis group with the RegisterAnalysisGroup
-  /// template.
-  ///
-  void addInterfaceImplemented(const PassInfo *ItfPI) {
-    ItfImpl.push_back(ItfPI);
-  }
+#define INITIALIZE_PASS_WITH_OPTIONS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
+  INITIALIZE_PASS_BEGIN(PassName, Arg, Name, Cfg, Analysis) \
+  PassName::registerOptions(); \
 
-  /// getInterfacesImplemented - Return a list of all of the analysis group
-  /// interfaces implemented by this pass.
-  ///
-  const std::vector<const PassInfo*> &getInterfacesImplemented() const {
-    return ItfImpl;
-  }
-};
+template<typename PassName>
+Pass *callDefaultCtor() { return new PassName(); }
 
+template <typename PassName> Pass *callTargetMachineCtor(TargetMachine *TM) {
+  return new PassName(TM);
+}
 
 //===---------------------------------------------------------------------------
 /// RegisterPass<t> template - This template class is used to notify the system
@@ -134,55 +113,18 @@ public:
 /// must be called, create a global constructor function (which takes the
 /// arguments you need and returns a Pass*) and register your pass like this:
 ///
-/// Pass *createMyPass(foo &opt) { return new MyPass(opt); }
-/// static RegisterPass<PassClassName> tmp("passopt", "My Name", createMyPass);
+/// static RegisterPass<PassClassName> tmp("passopt", "My Name");
 ///
-struct RegisterPassBase {
-  /// getPassInfo - Get the pass info for the registered class...
-  ///
-  const PassInfo *getPassInfo() const { return &PIObj; }
-
-  RegisterPassBase(const char *Name, const char *Arg, const std::type_info &TI,
-                   Pass *(*Normal)() = 0,
-                   Pass *(*TargetCtor)(TargetMachine &) = 0)
-    : PIObj(Name, Arg, TI, Normal, TargetCtor) {
-    registerPass();
-  }
-  RegisterPassBase(const std::type_info &TI)
-    : PIObj("", "", TI, 0, 0) {
-    // This ctor may only be used for analysis groups: it does not auto-register
-    // the pass.
-    PIObj.SetIsAnalysisGroup();
-  }
-  
-  ~RegisterPassBase() {   // Intentionally non-virtual.
-    // Analysis groups are registered/unregistered by their dtor.
-    if (!PIObj.isAnalysisGroup())
-      unregisterPass();
-  }
-
-protected:
-  PassInfo PIObj;       // The PassInfo object for this pass
-  void registerPass();
-  void unregisterPass();
-
-  /// setOnlyUsesCFG - Notice that this pass only depends on the CFG, so
-  /// transformations that do not modify the CFG do not invalidate this pass.
-  ///
-  void setOnlyUsesCFG();
-};
-
-template<typename PassName>
-Pass *callDefaultCtor() { return new PassName(); }
-
-template<typename PassName>
-struct RegisterPass : public RegisterPassBase {
+template<typename passName>
+struct RegisterPass : public PassInfo {
 
   // Register Pass using default constructor...
-  RegisterPass(const char *PassArg, const char *Name, bool CFGOnly = false)
-  : RegisterPassBase(Name, PassArg, typeid(PassName),
-                     callDefaultCtor<PassName>) {
-    if (CFGOnly) setOnlyUsesCFG();
+  RegisterPass(const char *PassArg, const char *Name, bool CFGOnly = false,
+               bool is_analysis = false)
+    : PassInfo(Name, PassArg, &passName::ID,
+               PassInfo::NormalCtor_t(callDefaultCtor<passName>),
+               CFGOnly, is_analysis) {
+    PassRegistry::getPassRegistry()->registerPass(*this);
   }
 };
 
@@ -195,7 +137,7 @@ struct RegisterPass : public RegisterPassBase {
 ///
 /// If no analysis implementing the interface is available, a default
 /// implementation is created and added.  A pass registers itself as the default
-/// implementation by specifying 'true' as the third template argument of this
+/// implementation by specifying 'true' as the second template argument of this
 /// class.
 ///
 /// In addition to registering itself as an analysis group member, a pass must
@@ -206,58 +148,90 @@ struct RegisterPass : public RegisterPassBase {
 /// second template argument).  The interface should be registered to associate
 /// a nice name with the interface.
 ///
-class RegisterAGBase : public RegisterPassBase {
-  PassInfo *InterfaceInfo;
-  const PassInfo *ImplementationInfo;
-  bool isDefaultImplementation;
-protected:
-  RegisterAGBase(const std::type_info &Interface,
-                 const std::type_info *Pass = 0,
-                 bool isDefault = false);
-  void setGroupName(const char *Name);
+class RegisterAGBase : public PassInfo {
 public:
-  ~RegisterAGBase();
+  RegisterAGBase(const char *Name,
+                 const void *InterfaceID,
+                 const void *PassID = nullptr,
+                 bool isDefault = false);
 };
 
 template<typename Interface, bool Default = false>
 struct RegisterAnalysisGroup : public RegisterAGBase {
-  RegisterAnalysisGroup(RegisterPassBase &RPB)
-    : RegisterAGBase(typeid(Interface), &RPB.getPassInfo()->getTypeInfo(), 
+  explicit RegisterAnalysisGroup(PassInfo &RPB)
+    : RegisterAGBase(RPB.getPassName(),
+                     &Interface::ID, RPB.getTypeInfo(),
                      Default) {
   }
 
-  RegisterAnalysisGroup(const char *Name)
-  : RegisterAGBase(typeid(Interface)) {
-    setGroupName(Name);
+  explicit RegisterAnalysisGroup(const char *Name)
+    : RegisterAGBase(Name, &Interface::ID) {
   }
 };
 
+#define INITIALIZE_ANALYSIS_GROUP(agName, name, defaultPass) \
+  static void* initialize##agName##AnalysisGroupOnce(PassRegistry &Registry) { \
+    initialize##defaultPass##Pass(Registry); \
+    PassInfo *AI = new PassInfo(name, & agName :: ID); \
+    Registry.registerAnalysisGroup(& agName ::ID, 0, *AI, false, true); \
+    return AI; \
+  } \
+  void llvm::initialize##agName##AnalysisGroup(PassRegistry &Registry) { \
+    CALL_ONCE_INITIALIZATION(initialize##agName##AnalysisGroupOnce) \
+  }
+
 
+#define INITIALIZE_AG_PASS(passName, agName, arg, name, cfg, analysis, def) \
+  static void* initialize##passName##PassOnce(PassRegistry &Registry) { \
+    if (!def) initialize##agName##AnalysisGroup(Registry); \
+    PassInfo *PI = new PassInfo(name, arg, & passName ::ID, \
+      PassInfo::NormalCtor_t(callDefaultCtor< passName >), cfg, analysis); \
+    Registry.registerPass(*PI, true); \
+    \
+    PassInfo *AI = new PassInfo(name, & agName :: ID); \
+    Registry.registerAnalysisGroup(& agName ::ID, & passName ::ID, \
+                                   *AI, def, true); \
+    return AI; \
+  } \
+  void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
+    CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \
+  }
+
+
+#define INITIALIZE_AG_PASS_BEGIN(passName, agName, arg, n, cfg, analysis, def) \
+  static void* initialize##passName##PassOnce(PassRegistry &Registry) { \
+    if (!def) initialize##agName##AnalysisGroup(Registry);
+
+#define INITIALIZE_AG_PASS_END(passName, agName, arg, n, cfg, analysis, def) \
+    PassInfo *PI = new PassInfo(n, arg, & passName ::ID, \
+      PassInfo::NormalCtor_t(callDefaultCtor< passName >), cfg, analysis); \
+    Registry.registerPass(*PI, true); \
+    \
+    PassInfo *AI = new PassInfo(n, & agName :: ID); \
+    Registry.registerAnalysisGroup(& agName ::ID, & passName ::ID, \
+                                   *AI, def, true); \
+    return AI; \
+  } \
+  void llvm::initialize##passName##Pass(PassRegistry &Registry) { \
+    CALL_ONCE_INITIALIZATION(initialize##passName##PassOnce) \
+  }
 
 //===---------------------------------------------------------------------------
 /// PassRegistrationListener class - This class is meant to be derived from by
 /// clients that are interested in which passes get registered and unregistered
 /// at runtime (which can be because of the RegisterPass constructors being run
 /// as the program starts up, or may be because a shared object just got
-/// loaded).  Deriving from the PassRegistationListener class automatically
-/// registers your object to receive callbacks indicating when passes are loaded
-/// and removed.
+/// loaded).
 ///
 struct PassRegistrationListener {
 
-  /// PassRegistrationListener ctor - Add the current object to the list of
-  /// PassRegistrationListeners...
-  PassRegistrationListener();
-
-  /// dtor - Remove object from list of listeners...
-  ///
-  virtual ~PassRegistrationListener();
+  PassRegistrationListener() {}
+  virtual ~PassRegistrationListener() {}
 
   /// Callback functions - These functions are invoked whenever a pass is loaded
   /// or removed from the current executable.
   ///
-  virtual void passRegistered(const PassInfo *P) {}
-  virtual void passUnregistered(const PassInfo *P) {}
+  virtual void passRegistered(const PassInfo *) {}
 
   /// enumeratePasses - Iterate over the registered passes, calling the
   /// passEnumerate callback on each PassInfo object.
@@ -267,7 +241,7 @@ struct PassRegistrationListener {
   /// passEnumerate - Callback function invoked when someone calls
   /// enumeratePasses on this PassRegistrationListener object.
   ///
-  virtual void passEnumerate(const PassInfo *P) {}
+  virtual void passEnumerate(const PassInfo *) {}
 };