[mips] Emit the .insn directive for empty basic blocks.

[oota-llvm.git] / lib / Target / Mips / MipsAsmPrinter.h

diff --git a/lib/Target/Mips/MipsAsmPrinter.h b/lib/Target/Mips/MipsAsmPrinter.h
index 4eb3eef94c69feef09c1709f104d3ed79d7e691d..a7f3304a3da8a7920e357ab7571e4a04b22c22ae 100644 (file)
--- a/lib/Target/Mips/MipsAsmPrinter.h
+++ b/lib/Target/Mips/MipsAsmPrinter.h
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef MIPSASMPRINTER_H
-#define MIPSASMPRINTER_H
+#ifndef LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
+#define LLVM_LIB_TARGET_MIPS_MIPSASMPRINTER_H
 
 #include "Mips16HardFloatInfo.h"
 #include "MipsMCInstLower.h"
@@ -31,7 +31,7 @@ class Module;
 class raw_ostream;
 
 class LLVM_LIBRARY_VISIBILITY MipsAsmPrinter : public AsmPrinter {
-  MipsTargetStreamer &getTargetStreamer();
+  MipsTargetStreamer &getTargetStreamer() const;
 
   void EmitInstrWithMacroNoAT(const MachineInstr *MI);
 
@@ -40,6 +40,12 @@ private:
   bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
                                    const MachineInstr *MI);
 
+  // Emit PseudoReturn, PseudoReturn64, PseudoIndirectBranch,
+  // and PseudoIndirectBranch64 as a JR, JR_MM, JALR, or JALR64 as appropriate
+  // for the target.
+  void emitPseudoIndirectBranch(MCStreamer &OutStreamer,
+                                const MachineInstr *MI);
+
   // lowerOperand - Convert a MachineOperand into the equivalent MCOperand.
   bool lowerOperand(const MachineOperand &MO, MCOperand &MCOp);
 
@@ -54,46 +60,56 @@ private:
   std::map<const char *, const llvm::Mips16HardFloatInfo::FuncSignature *>
   StubsNeeded;
 
-  void EmitJal(MCSymbol *Symbol);
+  void emitInlineAsmStart() const override;
+
+  void emitInlineAsmEnd(const MCSubtargetInfo &StartInfo,
+                        const MCSubtargetInfo *EndInfo) const override;
+
+  void EmitJal(const MCSubtargetInfo &STI, MCSymbol *Symbol);
 
-  void EmitInstrReg(unsigned Opcode, unsigned Reg);
+  void EmitInstrReg(const MCSubtargetInfo &STI, unsigned Opcode, unsigned Reg);
 
-  void EmitInstrRegReg(unsigned Opcode, unsigned Reg1, unsigned Reg2);
+  void EmitInstrRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
+                       unsigned Reg1, unsigned Reg2);
 
-  void EmitInstrRegRegReg(unsigned Opcode, unsigned Reg1, unsigned Reg2,
-                          unsigned Reg3);
+  void EmitInstrRegRegReg(const MCSubtargetInfo &STI, unsigned Opcode,
+                          unsigned Reg1, unsigned Reg2, unsigned Reg3);
 
-  void EmitMovFPIntPair(unsigned MovOpc, unsigned Reg1, unsigned Reg2,
-                        unsigned FPReg1, unsigned FPReg2, bool LE);
+  void EmitMovFPIntPair(const MCSubtargetInfo &STI, unsigned MovOpc,
+                        unsigned Reg1, unsigned Reg2, unsigned FPReg1,
+                        unsigned FPReg2, bool LE);
 
-  void EmitSwapFPIntParams(Mips16HardFloatInfo::FPParamVariant, bool LE,
+  void EmitSwapFPIntParams(const MCSubtargetInfo &STI,
+                           Mips16HardFloatInfo::FPParamVariant, bool LE,
                            bool ToFP);
 
-  void EmitSwapFPIntRetval(Mips16HardFloatInfo::FPReturnVariant, bool LE);
+  void EmitSwapFPIntRetval(const MCSubtargetInfo &STI,
+                           Mips16HardFloatInfo::FPReturnVariant, bool LE);
 
   void EmitFPCallStub(const char *, const Mips16HardFloatInfo::FuncSignature *);
 
   void NaClAlignIndirectJumpTargets(MachineFunction &MF);
 
+  bool isLongBranchPseudo(int Opcode) const;
+
 public:
 
   const MipsSubtarget *Subtarget;
   const MipsFunctionInfo *MipsFI;
   MipsMCInstLower MCInstLowering;
 
-  explicit MipsAsmPrinter(TargetMachine &TM,  MCStreamer &Streamer)
-    : AsmPrinter(TM, Streamer), MCP(nullptr), InConstantPool(false),
-      MCInstLowering(*this) {
-    Subtarget = &TM.getSubtarget<MipsSubtarget>();
-  }
+  explicit MipsAsmPrinter(TargetMachine &TM,
+                          std::unique_ptr<MCStreamer> Streamer)
+      : AsmPrinter(TM, std::move(Streamer)), MCP(nullptr),
+        InConstantPool(false), MCInstLowering(*this) {}
 
-  virtual const char *getPassName() const {
+  const char *getPassName() const override {
     return "Mips Assembly Printer";
   }
 
-  virtual bool runOnMachineFunction(MachineFunction &MF);
+  bool runOnMachineFunction(MachineFunction &MF) override;
 
-  virtual void EmitConstantPool() override {
+  void EmitConstantPool() override {
     bool UsingConstantPools =
       (Subtarget->inMips16Mode() && Subtarget->useConstantIslands());
     if (!UsingConstantPools)
@@ -101,21 +117,22 @@ public:
     // we emit constant pools customly!
   }
 
-  void EmitInstruction(const MachineInstr *MI);
+  void EmitInstruction(const MachineInstr *MI) override;
   void printSavedRegsBitmask();
   void emitFrameDirective();
   const char *getCurrentABIString() const;
-  virtual void EmitFunctionEntryLabel();
-  virtual void EmitFunctionBodyStart();
-  virtual void EmitFunctionBodyEnd();
-  virtual bool isBlockOnlyReachableByFallthrough(const MachineBasicBlock*
-                                                 MBB) const;
+  void EmitFunctionEntryLabel() override;
+  void EmitFunctionBodyStart() override;
+  void EmitFunctionBodyEnd() override;
+  void EmitBasicBlockEnd(const MachineBasicBlock &MBB) override;
+  bool isBlockOnlyReachableByFallthrough(
+                                   const MachineBasicBlock* MBB) const override;
   bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
                        unsigned AsmVariant, const char *ExtraCode,
-                       raw_ostream &O);
+                       raw_ostream &O) override;
   bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum,
                              unsigned AsmVariant, const char *ExtraCode,
-                             raw_ostream &O);
+                             raw_ostream &O) override;
   void printOperand(const MachineInstr *MI, int opNum, raw_ostream &O);
   void printUnsignedImm(const MachineInstr *MI, int opNum, raw_ostream &O);
   void printUnsignedImm8(const MachineInstr *MI, int opNum, raw_ostream &O);
@@ -123,8 +140,9 @@ public:
   void printMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O);
   void printFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O,
                        const char *Modifier = nullptr);
-  void EmitStartOfAsmFile(Module &M);
-  void EmitEndOfAsmFile(Module &M);
+  void printRegisterList(const MachineInstr *MI, int opNum, raw_ostream &O);
+  void EmitStartOfAsmFile(Module &M) override;
+  void EmitEndOfAsmFile(Module &M) override;
   void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS);
 };
 }