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88f06adb84
This was passing in all the parameters needed to construct a LegalizerHelper in the custom legalization, when it's simpler to just pass in the existing helper. This is slightly more annoying to use in the common case where you don't need the legalizer helper, but we could add back the common parameters back in addition to the helper. I didn't propagate this to all the internal target changes that this logically implies, but did update a sample one for legalizeMinNumMaxNum. This is in preparation for moving AMDGPU load/store legalization entirely into custom lowering. The current set of legalization actions is really constraining and not really capable of expressing all the actions needed to legalize loads/stores. In particular there's no way to express when the memory access itself needs to change size vs. the result type. There's also a lot of redundancy since the same split/widen actions need to be applied in both vector and scalar cases. All of the sub-cases logically belong as steps in the legalizer helper, but it will be easier to consider everything at once in custom lowering.
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===- X86LegalizerInfo.h ------------------------------------------*- C++
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//-*-==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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/// \file
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/// This file declares the targeting of the Machinelegalizer class for X86.
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/// \todo This should be generated by TableGen.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_X86_X86MACHINELEGALIZER_H
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#define LLVM_LIB_TARGET_X86_X86MACHINELEGALIZER_H
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#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
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namespace llvm {
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class X86Subtarget;
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class X86TargetMachine;
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/// This class provides the information for the target register banks.
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class X86LegalizerInfo : public LegalizerInfo {
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private:
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/// Keep a reference to the X86Subtarget around so that we can
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/// make the right decision when generating code for different targets.
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const X86Subtarget &Subtarget;
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const X86TargetMachine &TM;
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public:
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X86LegalizerInfo(const X86Subtarget &STI, const X86TargetMachine &TM);
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bool legalizeIntrinsic(LegalizerHelper &Helper,
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MachineInstr &MI) const override;
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private:
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void setLegalizerInfo32bit();
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void setLegalizerInfo64bit();
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void setLegalizerInfoSSE1();
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void setLegalizerInfoSSE2();
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void setLegalizerInfoSSE41();
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void setLegalizerInfoAVX();
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void setLegalizerInfoAVX2();
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void setLegalizerInfoAVX512();
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void setLegalizerInfoAVX512DQ();
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void setLegalizerInfoAVX512BW();
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};
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} // namespace llvm
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#endif
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