LLVM  10.0.0svn
X86LegalizerInfo.h
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1 //===- X86LegalizerInfo.h ------------------------------------------*- C++
2 //-*-==//
3 //
4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
5 // See https://llvm.org/LICENSE.txt for license information.
6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //
8 //===----------------------------------------------------------------------===//
9 /// \file
10 /// This file declares the targeting of the Machinelegalizer class for X86.
11 /// \todo This should be generated by TableGen.
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_X86_X86MACHINELEGALIZER_H
15 #define LLVM_LIB_TARGET_X86_X86MACHINELEGALIZER_H
16 
18 
19 namespace llvm {
20 
21 class X86Subtarget;
22 class X86TargetMachine;
23 
24 /// This class provides the information for the target register banks.
26 private:
27  /// Keep a reference to the X86Subtarget around so that we can
28  /// make the right decision when generating code for different targets.
29  const X86Subtarget &Subtarget;
30  const X86TargetMachine &TM;
31 
32 public:
33  X86LegalizerInfo(const X86Subtarget &STI, const X86TargetMachine &TM);
34 
36  MachineIRBuilder &MIRBuilder) const override;
37 
38 private:
39  void setLegalizerInfo32bit();
40  void setLegalizerInfo64bit();
41  void setLegalizerInfoSSE1();
42  void setLegalizerInfoSSE2();
43  void setLegalizerInfoSSE41();
44  void setLegalizerInfoAVX();
45  void setLegalizerInfoAVX2();
46  void setLegalizerInfoAVX512();
47  void setLegalizerInfoAVX512DQ();
48  void setLegalizerInfoAVX512BW();
49 };
50 } // namespace llvm
51 #endif
This class represents lattice values for constants.
Definition: AllocatorList.h:23
X86LegalizerInfo(const X86Subtarget &STI, const X86TargetMachine &TM)
bool legalizeIntrinsic(MachineInstr &MI, MachineRegisterInfo &MRI, MachineIRBuilder &MIRBuilder) const override
Return true if MI is either legal or has been legalized and false if not legal.
unsigned const MachineRegisterInfo * MRI
Helper class to build MachineInstr.
MachineRegisterInfo - Keep track of information for virtual and physical registers, including vreg register classes, use/def chains for registers, etc.
Representation of each machine instruction.
Definition: MachineInstr.h:63
This class provides the information for the target register banks.
IRTranslator LLVM IR MI