fix some GCC 4 warnings

[oota-llvm.git] / lib / Target / SparcV9 / SparcV9CodeEmitter.h

diff --git a/lib/Target/SparcV9/SparcV9CodeEmitter.h b/lib/Target/SparcV9/SparcV9CodeEmitter.h
index e6f6cde4359968c07129dea133307c83720b953a..b5e3e2175455b91a50e71175669cc3db634bf86c 100644 (file)
--- a/lib/Target/SparcV9/SparcV9CodeEmitter.h
+++ b/lib/Target/SparcV9/SparcV9CodeEmitter.h
@@ -1,4 +1,18 @@
-
+//===-- SparcV9CodeEmitter.h ------------------------------------*- 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.
+//
+//===----------------------------------------------------------------------===//
+//
+// Target-specific portions of the machine code emitter for the SparcV9.
+// This class interfaces with the JIT's Emitter in order to turn MachineInstrs
+// into words of binary machine code. Its code is partially generated by
+// TableGen's CodeEmitterGenerator.
+//
+//===----------------------------------------------------------------------===//
 
 #ifndef SPARCV9CODEEMITTER_H
 #define SPARCV9CODEEMITTER_H
@@ -6,30 +20,68 @@
 #include "llvm/BasicBlock.h"
 #include "llvm/CodeGen/MachineCodeEmitter.h"
 #include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/TargetMachine.h"
+
+namespace llvm {
+
+class GlobalValue;
+class MachineInstr;
+class MachineOperand;
 
 class SparcV9CodeEmitter : public MachineFunctionPass {
+  TargetMachine &TM;
   MachineCodeEmitter &MCE;
-  BasicBlock *BB;
+  const BasicBlock *currBB;
+
+  // Tracks which instruction references which BasicBlock
+  std::vector<std::pair<const BasicBlock*,
+                        std::pair<unsigned*,MachineInstr*> > > BBRefs;
+  // Tracks where each BasicBlock starts
+  std::map<const BasicBlock*, long> BBLocations;
 
 public:
-  SparcV9CodeEmitter(MachineCodeEmitter &M) : MCE(M) {}
-    
+  SparcV9CodeEmitter(TargetMachine &T, MachineCodeEmitter &M);
+  ~SparcV9CodeEmitter() {}
+
+  const char *getPassName() const { return "SparcV9 Machine Code Emitter"; }
+
+  /// runOnMachineFunction - emits the given machine function to memory.
+  ///
   bool runOnMachineFunction(MachineFunction &F);
-    
-  /// Function generated by the CodeEmitterGenerator using TableGen
+
+  /// emitWord - writes out the given 32-bit value to memory at the current PC.
   ///
-  static unsigned getBinaryCodeForInstr(MachineInstr &MI);
+  void emitWord(unsigned Val);
 
-private:    
-  static int64_t getMachineOpValue(MachineOperand &MO);
-  static unsigned getValueBit(int64_t Val, unsigned bit);
+  /// getBinaryCodeForInstr - This function, generated by the
+  /// CodeEmitterGenerator using TableGen, produces the binary encoding for
+  /// machine instructions.
+  ///
+  unsigned getBinaryCodeForInstr(MachineInstr &MI);
 
-  void emitConstant(unsigned Val, unsigned Size);
+private:
+  /// getMachineOpValue -
+  ///
+  int64_t getMachineOpValue(MachineInstr &MI, MachineOperand &MO);
 
+  /// emitBasicBlock -
+  ///
   void emitBasicBlock(MachineBasicBlock &MBB);
-  void emitInstruction(MachineInstr &MI);
-    
+
+  /// getValueBit -
+  ///
+  unsigned getValueBit(int64_t Val, unsigned bit);
+
+  /// getGlobalAddress -
+  ///
+  void* getGlobalAddress(GlobalValue *V, MachineInstr &MI,
+                         bool isPCRelative);
+  /// emitFarCall -
+  ///
+  unsigned getRealRegNum(unsigned fakeReg, MachineInstr &MI);
+
 };
 
+} // End llvm namespace
+
 #endif