forked from OSchip/llvm-project
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
//===- MipsLegalizerInfo.cpp ------------------------------------*- C++ -*-===//
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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 implements the targeting of the Machinelegalizer class for Mips.
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/// \todo This should be generated by TableGen.
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//===----------------------------------------------------------------------===//
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#include "MipsLegalizerInfo.h"
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#include "MipsTargetMachine.h"
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#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
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using namespace llvm;
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MipsLegalizerInfo::MipsLegalizerInfo(const MipsSubtarget &ST) {
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using namespace TargetOpcode;
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const LLT s1 = LLT::scalar(1);
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const LLT s32 = LLT::scalar(32);
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const LLT s64 = LLT::scalar(64);
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const LLT p0 = LLT::pointer(0, 32);
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getActionDefinitionsBuilder({G_ADD, G_SUB})
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.legalFor({s32})
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.clampScalar(0, s32, s32);
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getActionDefinitionsBuilder(G_MUL)
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.legalFor({s32})
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.minScalar(0, s32);
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getActionDefinitionsBuilder({G_UADDE, G_USUBO, G_USUBE})
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.lowerFor({{s32, s1}});
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getActionDefinitionsBuilder({G_LOAD, G_STORE})
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.legalForTypesWithMemSize({{s32, p0, 8},
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{s32, p0, 16},
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{s32, p0, 32},
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{p0, p0, 32}})
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.minScalar(0, s32);
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getActionDefinitionsBuilder({G_ZEXTLOAD, G_SEXTLOAD})
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.legalForTypesWithMemSize({{s32, p0, 8},
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{s32, p0, 16}})
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.minScalar(0, s32);
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getActionDefinitionsBuilder(G_SELECT)
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.legalForCartesianProduct({p0, s32}, {s32})
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.minScalar(0, s32)
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.minScalar(1, s32);
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getActionDefinitionsBuilder({G_AND, G_OR, G_XOR})
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.legalFor({s32})
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.clampScalar(0, s32, s32);
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getActionDefinitionsBuilder({G_SDIV, G_SREM, G_UREM, G_UDIV})
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.legalFor({s32})
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.minScalar(0, s32)
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.libcallFor({s64});
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getActionDefinitionsBuilder({G_SHL, G_ASHR, G_LSHR})
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.legalFor({s32, s32})
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.minScalar(1, s32);
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getActionDefinitionsBuilder(G_ICMP)
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.legalFor({{s32, s32}})
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.minScalar(0, s32);
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getActionDefinitionsBuilder(G_CONSTANT)
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.legalFor({s32})
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.clampScalar(0, s32, s32);
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getActionDefinitionsBuilder(G_GEP)
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.legalFor({{p0, s32}});
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getActionDefinitionsBuilder(G_FRAME_INDEX)
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.legalFor({p0});
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getActionDefinitionsBuilder(G_GLOBAL_VALUE)
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.legalFor({p0});
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computeTables();
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verify(*ST.getInstrInfo());
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}
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bool MipsLegalizerInfo::legalizeCustom(MachineInstr &MI,
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MachineRegisterInfo &MRI,
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MachineIRBuilder &MIRBuilder,
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GISelChangeObserver &Observer) const {
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using namespace TargetOpcode;
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MIRBuilder.setInstr(MI);
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return false;
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}
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