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44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===------------------ InterpBuiltinBitCast.h ------------------*- 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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#ifndef LLVM_CLANG_AST_INTERP_BUILTIN_BIT_CAST_H
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#define LLVM_CLANG_AST_INTERP_BUILTIN_BIT_CAST_H
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#include "BitcastBuffer.h"
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#include <cstddef>
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namespace clang {
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namespace interp {
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class Pointer;
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class InterpState;
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class CodePtr;
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class Context;
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inline static void swapBytes(std::byte *M, size_t N) {
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for (size_t I = 0; I != (N / 2); ++I)
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std::swap(M[I], M[N - 1 - I]);
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}
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bool DoBitCast(InterpState &S, CodePtr OpPC, const Pointer &Ptr,
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std::byte *Buff, Bits BitWidth, Bits FullBitWidth,
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bool &HasIndeterminateBits);
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bool DoBitCastPtr(InterpState &S, CodePtr OpPC, const Pointer &FromPtr,
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Pointer &ToPtr);
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bool DoBitCastPtr(InterpState &S, CodePtr OpPC, const Pointer &FromPtr,
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Pointer &ToPtr, size_t Size);
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bool readPointerToBuffer(const Context &Ctx, const Pointer &FromPtr,
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BitcastBuffer &Buffer, bool ReturnOnUninit);
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bool DoMemcpy(InterpState &S, CodePtr OpPC, const Pointer &SrcPtr,
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const Pointer &DestPtr, Bits Size);
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} // namespace interp
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} // namespace clang
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#endif
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