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//===- MipsLegalizerInfo.cpp ------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file implements the targeting of the Machinelegalizer class for Mips.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//
#include "MipsLegalizerInfo.h"
#include "MipsTargetMachine.h"
#include "llvm/CodeGen/GlobalISel/LegalizerHelper.h"
using namespace llvm;
MipsLegalizerInfo::MipsLegalizerInfo(const MipsSubtarget &ST) {
using namespace TargetOpcode;
const LLT s1 = LLT::scalar(1);
const LLT s32 = LLT::scalar(32);
const LLT s64 = LLT::scalar(64);
const LLT p0 = LLT::pointer(0, 32);
getActionDefinitionsBuilder(G_ADD)
.legalFor({s32})
.clampScalar(0, s32, s32);
getActionDefinitionsBuilder(G_UADDE)
.lowerFor({{s32, s1}});
getActionDefinitionsBuilder({G_LOAD, G_STORE})
.legalForCartesianProduct({p0, s32}, {p0});
getActionDefinitionsBuilder(G_SELECT)
.legalForCartesianProduct({p0, s32}, {s32})
.minScalar(0, s32)
.minScalar(1, s32);
getActionDefinitionsBuilder({G_AND, G_OR, G_XOR})
.legalFor({s32})
.clampScalar(0, s32, s32);
getActionDefinitionsBuilder({G_SHL, G_ASHR, G_LSHR})
.legalFor({s32});
getActionDefinitionsBuilder({G_SDIV, G_SREM, G_UREM, G_UDIV})
.legalFor({s32})
.minScalar(0, s32)
.libcallFor({s64});
getActionDefinitionsBuilder(G_ICMP)
.legalFor({{s32, s32}})
.minScalar(0, s32);
getActionDefinitionsBuilder(G_CONSTANT)
.legalFor({s32})
.clampScalar(0, s32, s32);
getActionDefinitionsBuilder(G_GEP)
.legalFor({{p0, s32}});
getActionDefinitionsBuilder(G_FRAME_INDEX)
.legalFor({p0});
getActionDefinitionsBuilder(G_GLOBAL_VALUE)
.legalFor({p0});
computeTables();
verify(*ST.getInstrInfo());
}
bool MipsLegalizerInfo::legalizeCustom(MachineInstr &MI,
MachineRegisterInfo &MRI,
MachineIRBuilder &MIRBuilder,
GISelChangeObserver &Observer) const {
using namespace TargetOpcode;
MIRBuilder.setInstr(MI);
return false;
}
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