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1//===---- MipsModuleISelDAGToDAG.h - Change Subtarget --------===//
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 defines a pass used to change the subtarget for the
11// Mips Instruction selector.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef LLVM_LIB_TARGET_MIPS_MIPSMODULEISELDAGTODAG_H
16#define LLVM_LIB_TARGET_MIPS_MIPSMODULEISELDAGTODAG_H
17
18#include "Mips.h"
19#include "MipsSubtarget.h"
20#include "MipsTargetMachine.h"
21#include "llvm/CodeGen/SelectionDAGISel.h"
22
23
24//===----------------------------------------------------------------------===//
25// Instruction Selector Implementation
26//===----------------------------------------------------------------------===//
27
28//===----------------------------------------------------------------------===//
29// MipsModuleDAGToDAGISel - MIPS specific code to select MIPS machine
30// instructions for SelectionDAG operations.
31//===----------------------------------------------------------------------===//
32namespace llvm {
33
34class MipsModuleDAGToDAGISel : public MachineFunctionPass {
35public:
36
37 static char ID;
38
39 explicit MipsModuleDAGToDAGISel(MipsTargetMachine &TM_)
40 : MachineFunctionPass(ID), TM(TM_) {}
41
42 // Pass Name
43 const char *getPassName() const override {
44 return "MIPS DAG->DAG Pattern Instruction Selection";
45 }
46
47 bool runOnMachineFunction(MachineFunction &MF) override;
48
49protected:
50 MipsTargetMachine &TM;
51};
52
53/// createMipsISelDag - This pass converts a legalized DAG into a
54/// MIPS-specific DAG, ready for instruction scheduling.
55FunctionPass *createMipsModuleISelDag(MipsTargetMachine &TM);
56}
57
58#endif