| //===-- M68kLegalizerInfo.cpp -----------------------------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// \file |
| /// This file implements the targeting of the Machinelegalizer class for M68k. |
| //===----------------------------------------------------------------------===// |
| |
| #include "M68kLegalizerInfo.h" |
| #include "llvm/CodeGen/GlobalISel/LegalizerHelper.h" |
| #include "llvm/CodeGen/GlobalISel/LegalizerInfo.h" |
| #include "llvm/CodeGen/TargetOpcodes.h" |
| #include "llvm/CodeGen/ValueTypes.h" |
| #include "llvm/IR/DerivedTypes.h" |
| #include "llvm/IR/Type.h" |
| |
| using namespace llvm; |
| |
| M68kLegalizerInfo::M68kLegalizerInfo(const M68kSubtarget &ST) { |
| using namespace TargetOpcode; |
| const LLT s8 = LLT::scalar(8); |
| const LLT s16 = LLT::scalar(16); |
| const LLT s32 = LLT::scalar(32); |
| const LLT p0 = LLT::pointer(0, 32); |
| |
| getActionDefinitionsBuilder({G_ADD, G_SUB, G_MUL, G_UDIV, G_AND}) |
| .legalFor({s8, s16, s32}) |
| .clampScalar(0, s8, s32) |
| .widenScalarToNextPow2(0, 8); |
| |
| getActionDefinitionsBuilder(G_CONSTANT) |
| .legalFor({s32, p0}) |
| .clampScalar(0, s32, s32); |
| |
| getActionDefinitionsBuilder({G_FRAME_INDEX, G_GLOBAL_VALUE}).legalFor({p0}); |
| |
| getActionDefinitionsBuilder({G_STORE, G_LOAD}) |
| .legalForTypesWithMemDesc({{s32, p0, s32, 4}, |
| {s32, p0, s16, 4}, |
| {s32, p0, s8, 4}, |
| {s16, p0, s16, 2}, |
| {s8, p0, s8, 1}, |
| {p0, p0, s32, 4}}) |
| .clampScalar(0, s8, s32); |
| |
| getActionDefinitionsBuilder(G_PTR_ADD).legalFor({{p0, s32}}); |
| |
| getLegacyLegalizerInfo().computeTables(); |
| } |