Remove attribution from file headers, per discussion on llvmdev.

[oota-llvm.git] / lib / ExecutionEngine / JIT / JIT.h

diff --git a/lib/ExecutionEngine/JIT/JIT.h b/lib/ExecutionEngine/JIT/JIT.h
index 414d1c6e6832ebffec18d716699be11482afc32f..bf1e804cd412364444be90c0ba1b1d8dbf0728e0 100644 (file)
--- a/lib/ExecutionEngine/JIT/JIT.h
+++ b/lib/ExecutionEngine/JIT/JIT.h
@@ -1,10 +1,10 @@
 //===-- JIT.h - Class definition for the JIT --------------------*- C++ -*-===//
-// 
+//
 //                     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.
+//
 //===----------------------------------------------------------------------===//
 //
 // This file defines the top-level JIT data structure.
@@ -27,28 +27,54 @@ class TargetMachine;
 class TargetJITInfo;
 class MachineCodeEmitter;
 
-class JIT : public ExecutionEngine {
-  TargetMachine &TM;       // The current target we are compiling to
-  TargetJITInfo &TJI;      // The JITInfo for the target we are compiling to
-  
+class JITState {
+private:
   FunctionPassManager PM;  // Passes to compile a function
-  MachineCodeEmitter *MCE; // MCE object
 
   /// PendingGlobals - Global variables which have had memory allocated for them
   /// while a function was code generated, but which have not been initialized
   /// yet.
   std::vector<const GlobalVariable*> PendingGlobals;
 
-  JIT(ModuleProvider *MP, TargetMachine &tm, TargetJITInfo &tji);
+public:
+  JITState(ModuleProvider *MP) : PM(MP) {}
+
+  FunctionPassManager &getPM(const MutexGuard &L) {
+    return PM;
+  }
+
+  std::vector<const GlobalVariable*> &getPendingGlobals(const MutexGuard &L) {
+    return PendingGlobals;
+  }
+};
+
+
+class JIT : public ExecutionEngine {
+  TargetMachine &TM;       // The current target we are compiling to
+  TargetJITInfo &TJI;      // The JITInfo for the target we are compiling to
+  MachineCodeEmitter *MCE; // MCE object
+
+  JITState jitstate;
+
+  JIT(ModuleProvider *MP, TargetMachine &tm, TargetJITInfo &tji, 
+      JITMemoryManager *JMM);
 public:
   ~JIT();
 
+  static void Register() {
+    JITCtor = create;
+  }
+  
+  /// getJITInfo - Return the target JIT information structure.
+  ///
+  TargetJITInfo &getJITInfo() const { return TJI; }
+
   /// create - Create an return a new JIT compiler if there is one available
-  /// for the current target.  Otherwise, return null.  If the JIT is created
-  /// successfully, it takes responsibility for deleting the specified
-  /// IntrinsicLowering implementation.
+  /// for the current target.  Otherwise, return null.
   ///
-  static ExecutionEngine *create(ModuleProvider *MP, IntrinsicLowering *IL = 0);
+  static ExecutionEngine *create(ModuleProvider *MP, std::string *Err) {
+    return createJIT(MP, Err, 0);
+  }
 
   /// run - Start execution with the specified function and arguments.
   ///
@@ -63,7 +89,7 @@ public:
 
   // CompilationCallback - Invoked the first time that a call site is found,
   // which causes lazy compilation of the target function.
-  // 
+  //
   static void CompilationCallback();
 
   /// getPointerToFunction - This returns the address of the specified function,
@@ -90,8 +116,19 @@ public:
   ///
   void *recompileAndRelinkFunction(Function *F);
 
+  /// freeMachineCodeForFunction - deallocate memory used to code-generate this
+  /// Function.
+  ///
+  void freeMachineCodeForFunction(Function *F);
+
+  /// getCodeEmitter - Return the code emitter this JIT is emitting into.
+  MachineCodeEmitter *getCodeEmitter() const { return MCE; }
+  
+  static ExecutionEngine *createJIT(ModuleProvider *MP, std::string *Err,
+                                    JITMemoryManager *JMM);
+  
 private:
-  static MachineCodeEmitter *createEmitter(JIT &J);
+  static MachineCodeEmitter *createEmitter(JIT &J, JITMemoryManager *JMM);
   void runJITOnFunction (Function *F);
 };