ef2a104c94
This is a subset of #68288, with hopefully narrower scope. It does not support bitcasting to non-integral types yet. Bitfields are supported, but only if they result in a full byte-sized final buffer. It does not support casting from null-pointers yet or casting from indeterminate bits. The tests are from #68288 and partially from #74775. The `BitcastBuffer` struct is currently always working in single bits, but I plan to (try to) optimize this for the common full-byte case.
27 lines
771 B
C++
27 lines
771 B
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_BUILITN_BIT_CAST_H
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#define LLVM_CLANG_AST_INTERP_BUILITN_BIT_CAST_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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bool DoBitCast(InterpState &S, CodePtr OpPC, const Pointer &Ptr,
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std::byte *Buff, size_t BuffSize, bool &HasIndeterminateBits);
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} // namespace interp
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} // namespace clang
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#endif
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