Differential D29933 Diff 119619 llvm/trunk/lib/Target/RISCV/RISCVAsmPrinter.cpp

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llvm/trunk/lib/Target/RISCV/RISCVAsmPrinter.cpp

		1		//===-- RISCVAsmPrinter.cpp - RISCV LLVM assembly writer ------------------===//
		2		//
		3		// The LLVM Compiler Infrastructure
		4		//
		5		// This file is distributed under the University of Illinois Open Source
		6		// License. See LICENSE.TXT for details.
		7		//
		8		//===----------------------------------------------------------------------===//
		9		//
		10		// This file contains a printer that converts from our internal representation
		11		// of machine-dependent LLVM code to the RISCV assembly language.
		12		//
		13		//===----------------------------------------------------------------------===//
		14
		15		#include "RISCV.h"
		16		#include "InstPrinter/RISCVInstPrinter.h"
		17		#include "RISCVTargetMachine.h"
		18		#include "llvm/CodeGen/AsmPrinter.h"
		19		#include "llvm/CodeGen/MachineConstantPool.h"
		20		#include "llvm/CodeGen/MachineFunctionPass.h"
		21		#include "llvm/CodeGen/MachineInstr.h"
		22		#include "llvm/CodeGen/MachineModuleInfo.h"
		23		#include "llvm/MC/MCAsmInfo.h"
		24		#include "llvm/MC/MCInst.h"
		25		#include "llvm/MC/MCStreamer.h"
		26		#include "llvm/MC/MCSymbol.h"
		27		#include "llvm/Support/TargetRegistry.h"
		28		#include "llvm/Support/raw_ostream.h"
		29		using namespace llvm;
		30
		31		#define DEBUG_TYPE "asm-printer"
		32
		33		namespace {
		34		class RISCVAsmPrinter : public AsmPrinter {
		35		public:
		36		explicit RISCVAsmPrinter(TargetMachine &TM,
		37		std::unique_ptr<MCStreamer> Streamer)
		38		: AsmPrinter(TM, std::move(Streamer)) {}
		39
		40		StringRef getPassName() const override { return "RISCV Assembly Printer"; }
		41
		42		void EmitInstruction(const MachineInstr *MI) override;
		43
		44		bool emitPseudoExpansionLowering(MCStreamer &OutStreamer,
		45		const MachineInstr *MI);
		46		};
		47		}
		48
		49		// Simple pseudo-instructions have their lowering (with expansion to real
		50		// instructions) auto-generated.
		51		#include "RISCVGenMCPseudoLowering.inc"
		52
		53		void RISCVAsmPrinter::EmitInstruction(const MachineInstr *MI) {
		54		// Do any auto-generated pseudo lowerings.
		55		if (emitPseudoExpansionLowering(*OutStreamer, MI))
		56		return;
		57
		58		MCInst TmpInst;
		59		LowerRISCVMachineInstrToMCInst(MI, TmpInst);
		60		EmitToStreamer(*OutStreamer, TmpInst);
		61		}
		62
		63		// Force static initialization.
		64		extern "C" void LLVMInitializeRISCVAsmPrinter() {
		65		RegisterAsmPrinter<RISCVAsmPrinter> X(getTheRISCV32Target());
		66		RegisterAsmPrinter<RISCVAsmPrinter> Y(getTheRISCV64Target());
		67		}