diff options
Diffstat (limited to 'include/llvm')
| -rw-r--r-- | include/llvm/CodeGen/AsmPrinter.h | 132 |
1 files changed, 75 insertions, 57 deletions
diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h index 64df7b1..59323a5 100644 --- a/include/llvm/CodeGen/AsmPrinter.h +++ b/include/llvm/CodeGen/AsmPrinter.h @@ -56,18 +56,10 @@ namespace llvm { /// AsmPrinter - This class is intended to be used as a driving class for all /// asm writers. class AsmPrinter : public MachineFunctionPass { - static char ID; - - /// If VerboseAsm is set, a pointer to the loop info for this - /// function. - /// - MachineLoopInfo *LI; - - protected: + public: /// DW - If available, this is a pointer to the current dwarf writer. DwarfWriter *DW; - public: /// Target machine description. /// @@ -103,10 +95,6 @@ namespace llvm { /// MCSymbol *CurrentFnSym; - /// VerboseAsm - Emit comments in assembly output if this is true. - /// - bool VerboseAsm; - /// getObjFileLowering - Return information about object file lowering. TargetLoweringObjectFile &getObjFileLowering() const; @@ -117,6 +105,16 @@ namespace llvm { // GCMetadataPrinters - The garbage collection metadata printer table. void *GCMetadataPrinters; // Really a DenseMap. + /// VerboseAsm - Emit comments in assembly output if this is true. + /// + bool VerboseAsm; + static char ID; + + /// If VerboseAsm is set, a pointer to the loop info for this + /// function. + /// + MachineLoopInfo *LI; + protected: explicit AsmPrinter(TargetMachine &TM, MCStreamer &Streamer); @@ -131,6 +129,10 @@ namespace llvm { /// unsigned getFunctionNumber() const; + //===------------------------------------------------------------------===// + // MachineFunctionPass Implementation. + //===------------------------------------------------------------------===// + /// getAnalysisUsage - Record analysis usage. /// void getAnalysisUsage(AnalysisUsage &AU) const; @@ -140,14 +142,6 @@ namespace llvm { /// call this implementation. bool doInitialization(Module &M); - /// EmitStartOfAsmFile - This virtual method can be overridden by targets - /// that want to emit something at the start of their file. - virtual void EmitStartOfAsmFile(Module &) {} - - /// EmitEndOfAsmFile - This virtual method can be overridden by targets that - /// want to emit something at the end of their file. - virtual void EmitEndOfAsmFile(Module &) {} - /// doFinalization - Shut down the asmprinter. If you override this in your /// pass, you must make sure to call it explicitly. bool doFinalization(Module &M); @@ -161,6 +155,10 @@ namespace llvm { return false; } + //===------------------------------------------------------------------===// + // Coarse grained IR lowering routines. + //===------------------------------------------------------------------===// + /// SetupMachineFunction - This should be called when a new MachineFunction /// is being processed from runOnMachineFunction. void SetupMachineFunction(MachineFunction &MF); @@ -173,19 +171,6 @@ namespace llvm { /// function. void EmitFunctionBody(); - /// EmitInstruction - Targets should implement this to emit instructions. - virtual void EmitInstruction(const MachineInstr *) { - assert(0 && "EmitInstruction not implemented"); - } - - /// EmitFunctionBodyStart - Targets can override this to emit stuff before - /// the first basic block in the function. - virtual void EmitFunctionBodyStart() {} - - /// EmitFunctionBodyEnd - Targets can override this to emit stuff after - /// the last basic block in the function. - virtual void EmitFunctionBodyEnd() {} - /// EmitConstantPool - Print to the current output stream assembly /// representations of the constants in the constant pool MCP. This is /// used to print out constants which have been "spilled to memory" by @@ -206,30 +191,38 @@ namespace llvm { /// do nothing and return false. bool EmitSpecialLLVMGlobal(const GlobalVariable *GV); - public: //===------------------------------------------------------------------===// - // Emission routines. - // - - /// EmitInt8 - Emit a byte directive and value. - /// - void EmitInt8(int Value) const; - - /// EmitInt16 - Emit a short directive and value. - /// - void EmitInt16(int Value) const; - - /// EmitInt32 - Emit a long directive and value. - /// - void EmitInt32(int Value) const; - - /// EmitLabelDifference - Emit something like ".long Hi-Lo" where the size - /// in bytes of the directive is specified by Size and Hi/Lo specify the - /// labels. This implicitly uses .set if it is available. - void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo, - unsigned Size) const; - + // Overridable Hooks + //===------------------------------------------------------------------===// + + // Targets can, or in the case of EmitInstruction, must implement these to + // customize output. + + /// EmitStartOfAsmFile - This virtual method can be overridden by targets + /// that want to emit something at the start of their file. + virtual void EmitStartOfAsmFile(Module &) {} + + /// EmitEndOfAsmFile - This virtual method can be overridden by targets that + /// want to emit something at the end of their file. + virtual void EmitEndOfAsmFile(Module &) {} + + /// EmitFunctionBodyStart - Targets can override this to emit stuff before + /// the first basic block in the function. + virtual void EmitFunctionBodyStart() {} + + /// EmitFunctionBodyEnd - Targets can override this to emit stuff after + /// the last basic block in the function. + virtual void EmitFunctionBodyEnd() {} + + /// EmitInstruction - Targets should implement this to emit instructions. + virtual void EmitInstruction(const MachineInstr *) { + assert(0 && "EmitInstruction not implemented"); + } + //===------------------------------------------------------------------===// + // Lowering Routines. + //===------------------------------------------------------------------===// + public: /// EmitAlignment - Emit an alignment directive to the specified power of /// two boundary. For example, if you pass in 3 here, you will get an 8 @@ -286,7 +279,7 @@ namespace llvm { // Data emission. /// EmitGlobalConstant - Print a general LLVM constant to the .s file. - void EmitGlobalConstant(const Constant* CV, unsigned AddrSpace = 0); + void EmitGlobalConstant(const Constant *CV, unsigned AddrSpace = 0); protected: virtual void EmitFunctionEntryLabel(); @@ -323,6 +316,31 @@ namespace llvm { void EmitXXStructorList(Constant *List); GCMetadataPrinter *GetOrCreateGCPrinter(GCStrategy *C); + + //===------------------------------------------------------------------===// + // Emission Helper Routines. + //===------------------------------------------------------------------===// + public: + + /// EmitInt8 - Emit a byte directive and value. + /// + void EmitInt8(int Value) const; + + /// EmitInt16 - Emit a short directive and value. + /// + void EmitInt16(int Value) const; + + /// EmitInt32 - Emit a long directive and value. + /// + void EmitInt32(int Value) const; + + /// EmitLabelDifference - Emit something like ".long Hi-Lo" where the size + /// in bytes of the directive is specified by Size and Hi/Lo specify the + /// labels. This implicitly uses .set if it is available. + void EmitLabelDifference(const MCSymbol *Hi, const MCSymbol *Lo, + unsigned Size) const; + + //===------------------------------------------------------------------===// // Inline Asm Support //===------------------------------------------------------------------===// |