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1//===-- X86InstrFoldTables.h - X86 Instruction Folding Tables ---*- C++ -*-===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8//9// This file contains the interface to query the X86 memory folding tables.10//11//===----------------------------------------------------------------------===//12 13#ifndef LLVM_LIB_TARGET_X86_X86INSTRFOLDTABLES_H14#define LLVM_LIB_TARGET_X86_X86INSTRFOLDTABLES_H15 16#include <cstdint>17#include "llvm/Support/X86FoldTablesUtils.h"18 19namespace llvm {20 21// This struct is used for both the folding and unfold tables. They KeyOp22// is used to determine the sorting order.23struct X86FoldTableEntry {24 unsigned KeyOp;25 unsigned DstOp;26 uint16_t Flags;27 28 bool operator<(const X86FoldTableEntry &RHS) const {29 return KeyOp < RHS.KeyOp;30 }31 bool operator==(const X86FoldTableEntry &RHS) const {32 return KeyOp == RHS.KeyOp;33 }34 friend bool operator<(const X86FoldTableEntry &TE, unsigned Opcode) {35 return TE.KeyOp < Opcode;36 }37};38 39// Look up the memory folding table entry for folding a load and a store into40// operand 0.41const X86FoldTableEntry *lookupTwoAddrFoldTable(unsigned RegOp);42 43// Look up the memory folding table entry for folding a load or store with44// operand OpNum.45const X86FoldTableEntry *lookupFoldTable(unsigned RegOp, unsigned OpNum);46 47// Look up the broadcast folding table entry for folding a broadcast with48// operand OpNum.49const X86FoldTableEntry *lookupBroadcastFoldTable(unsigned RegOp,50 unsigned OpNum);51 52// Look up the memory unfolding table entry for this instruction.53const X86FoldTableEntry *lookupUnfoldTable(unsigned MemOp);54 55// Look up the broadcast folding table entry for this instruction from56// the regular memory instruction.57const X86FoldTableEntry *lookupBroadcastFoldTableBySize(unsigned MemOp,58 unsigned BroadcastBits);59 60bool matchBroadcastSize(const X86FoldTableEntry &Entry, unsigned BroadcastBits);61} // namespace llvm62 63#endif64