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Diffstat (limited to 'contrib/llvm/lib/Target/ARM/ARMAsmPrinter.h')
-rw-r--r-- | contrib/llvm/lib/Target/ARM/ARMAsmPrinter.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/ARM/ARMAsmPrinter.h b/contrib/llvm/lib/Target/ARM/ARMAsmPrinter.h new file mode 100644 index 0000000..5852684 --- /dev/null +++ b/contrib/llvm/lib/Target/ARM/ARMAsmPrinter.h @@ -0,0 +1,112 @@ +//===-- ARMAsmPrinter.h - Print machine code to an ARM .s file ------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// ARM Assembly printer class. +// +//===----------------------------------------------------------------------===// + +#ifndef ARMASMPRINTER_H +#define ARMASMPRINTER_H + +#include "ARM.h" +#include "ARMTargetMachine.h" +#include "llvm/CodeGen/AsmPrinter.h" +#include "llvm/Support/Compiler.h" + +namespace llvm { + +namespace ARM { + enum DW_ISA { + DW_ISA_ARM_thumb = 1, + DW_ISA_ARM_arm = 2 + }; +} + +class LLVM_LIBRARY_VISIBILITY ARMAsmPrinter : public AsmPrinter { + + /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can + /// make the right decision when printing asm code for different targets. + const ARMSubtarget *Subtarget; + + /// AFI - Keep a pointer to ARMFunctionInfo for the current + /// MachineFunction. + ARMFunctionInfo *AFI; + + /// MCP - Keep a pointer to constantpool entries of the current + /// MachineFunction. + const MachineConstantPool *MCP; + +public: + explicit ARMAsmPrinter(TargetMachine &TM, MCStreamer &Streamer) + : AsmPrinter(TM, Streamer), AFI(NULL), MCP(NULL) { + Subtarget = &TM.getSubtarget<ARMSubtarget>(); + } + + virtual const char *getPassName() const { + return "ARM Assembly Printer"; + } + + void printOperand(const MachineInstr *MI, int OpNum, raw_ostream &O, + const char *Modifier = 0); + + virtual bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, + unsigned AsmVariant, const char *ExtraCode, + raw_ostream &O); + virtual bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNum, + unsigned AsmVariant, + const char *ExtraCode, raw_ostream &O); + + void EmitJumpTable(const MachineInstr *MI); + void EmitJump2Table(const MachineInstr *MI); + virtual void EmitInstruction(const MachineInstr *MI); + bool runOnMachineFunction(MachineFunction &F); + + virtual void EmitConstantPool() {} // we emit constant pools customly! + virtual void EmitFunctionEntryLabel(); + void EmitStartOfAsmFile(Module &M); + void EmitEndOfAsmFile(Module &M); + +private: + // Helpers for EmitStartOfAsmFile() and EmitEndOfAsmFile() + void emitAttributes(); + + // Helper for ELF .o only + void emitARMAttributeSection(); + + // Generic helper used to emit e.g. ARMv5 mul pseudos + void EmitPatchedInstruction(const MachineInstr *MI, unsigned TargetOpc); + +public: + void PrintDebugValueComment(const MachineInstr *MI, raw_ostream &OS); + + MachineLocation getDebugValueLocation(const MachineInstr *MI) const; + + virtual unsigned getISAEncoding() { + // ARM/Darwin adds ISA to the DWARF info for each function. + if (!Subtarget->isTargetDarwin()) + return 0; + return Subtarget->isThumb() ? + llvm::ARM::DW_ISA_ARM_thumb : llvm::ARM::DW_ISA_ARM_arm; + } + + MCSymbol *GetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2, + const MachineBasicBlock *MBB) const; + MCSymbol *GetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const; + + MCSymbol *GetARMSJLJEHLabel(void) const; + + MCSymbol *GetARMGVSymbol(const GlobalValue *GV); + + /// EmitMachineConstantPoolValue - Print a machine constantpool value to + /// the .s file. + virtual void EmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV); +}; +} // end namespace llvm + +#endif |