forked from OSchip/llvm-project
63 lines
2.0 KiB
C++
63 lines
2.0 KiB
C++
//===---- MipsModuleISelDAGToDAG.h - Change Subtarget --------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a pass used to change the subtarget for the
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// Mips Instruction selector.
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//
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//===----------------------------------------------------------------------===//
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#ifndef MIPSMODULEISELDAGTODAG_H
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#define MIPSMODULEISELDAGTODAG_H
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#include "Mips.h"
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#include "MipsSubtarget.h"
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#include "MipsTargetMachine.h"
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#include "llvm/CodeGen/SelectionDAGISel.h"
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//===----------------------------------------------------------------------===//
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// Instruction Selector Implementation
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// MipsModuleDAGToDAGISel - MIPS specific code to select MIPS machine
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// instructions for SelectionDAG operations.
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//===----------------------------------------------------------------------===//
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namespace llvm {
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class MipsModuleDAGToDAGISel : public MachineFunctionPass {
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public:
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static char ID;
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explicit MipsModuleDAGToDAGISel(MipsTargetMachine &TM_)
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: MachineFunctionPass(ID),
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TM(TM_), Subtarget(TM.getSubtarget<MipsSubtarget>()) {}
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// Pass Name
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const char *getPassName() const override {
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return "MIPS DAG->DAG Pattern Instruction Selection";
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}
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bool runOnMachineFunction(MachineFunction &MF) override;
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protected:
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/// Keep a pointer to the MipsSubtarget around so that we can make the right
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/// decision when generating code for different targets.
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const TargetMachine &TM;
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const MipsSubtarget &Subtarget;
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};
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/// createMipsISelDag - This pass converts a legalized DAG into a
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/// MIPS-specific DAG, ready for instruction scheduling.
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FunctionPass *createMipsModuleISelDag(MipsTargetMachine &TM);
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}
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#endif
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