1e8d8bef9SDimitry Andric //===- BitcodeCommon.h - Common code for encode/decode --------*- C++ -*-===// 2e8d8bef9SDimitry Andric // 3e8d8bef9SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e8d8bef9SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5e8d8bef9SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e8d8bef9SDimitry Andric // 7e8d8bef9SDimitry Andric //===----------------------------------------------------------------------===// 8e8d8bef9SDimitry Andric // 9e8d8bef9SDimitry Andric // This header defines common code to be used by BitcodeWriter and 10e8d8bef9SDimitry Andric // BitcodeReader. 11e8d8bef9SDimitry Andric // 12e8d8bef9SDimitry Andric //===----------------------------------------------------------------------===// 13e8d8bef9SDimitry Andric 14e8d8bef9SDimitry Andric #ifndef LLVM_BITCODE_BITCODECOMMON_H 15e8d8bef9SDimitry Andric #define LLVM_BITCODE_BITCODECOMMON_H 16e8d8bef9SDimitry Andric 17e8d8bef9SDimitry Andric #include "llvm/ADT/Bitfields.h" 18e8d8bef9SDimitry Andric 19e8d8bef9SDimitry Andric namespace llvm { 20e8d8bef9SDimitry Andric 21e8d8bef9SDimitry Andric struct AllocaPackedValues { 22*349cc55cSDimitry Andric // We increased the number of bits needed to represent alignment to be more 23*349cc55cSDimitry Andric // than 5, but to preserve backward compatibility we store the upper bits 24*349cc55cSDimitry Andric // separately. 25*349cc55cSDimitry Andric using AlignLower = Bitfield::Element<unsigned, 0, 5>; 26*349cc55cSDimitry Andric using UsedWithInAlloca = Bitfield::Element<bool, AlignLower::NextBit, 1>; 27e8d8bef9SDimitry Andric using ExplicitType = Bitfield::Element<bool, UsedWithInAlloca::NextBit, 1>; 28e8d8bef9SDimitry Andric using SwiftError = Bitfield::Element<bool, ExplicitType::NextBit, 1>; 29*349cc55cSDimitry Andric using AlignUpper = Bitfield::Element<unsigned, SwiftError::NextBit, 3>; 30e8d8bef9SDimitry Andric }; 31e8d8bef9SDimitry Andric 32e8d8bef9SDimitry Andric } // namespace llvm 33e8d8bef9SDimitry Andric 34e8d8bef9SDimitry Andric #endif // LLVM_BITCODE_BITCODECOMMON_H 35