6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
//===-- llvm/MC/MCSymbolTableEntry.h - Symbol table entry -------*- 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_MC_MCSYMBOLTABLEENTRY_H
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#define LLVM_MC_MCSYMBOLTABLEENTRY_H
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#include "llvm/ADT/StringMapEntry.h"
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namespace llvm {
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class MCSymbol;
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/// The value for an entry in the symbol table of an MCContext.
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///
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/// This is in a separate file, because MCSymbol uses MCSymbolTableEntry (see
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/// below) to reuse the name that is stored in the symbol table.
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struct MCSymbolTableValue {
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/// The symbol associated with the name, if any.
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MCSymbol *Symbol = nullptr;
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/// The next ID to dole out to an unnamed assembler temporary symbol with
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/// the prefix (symbol table key).
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unsigned NextUniqueID = 0;
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/// Whether the name associated with this value is used for a symbol. This is
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/// not necessarily true: sometimes, we use a symbol table value without an
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/// associated symbol for accessing NextUniqueID when a suffix is added to a
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/// name. However, Used might be true even if Symbol is nullptr: temporary
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/// named symbols are not added to the symbol table.
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bool Used = false;
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};
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/// MCContext stores MCSymbolTableValue in a string map (see MCSymbol::operator
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/// new). To avoid redundant storage of the name, MCSymbol stores a pointer (8
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/// bytes -- half the size of a StringRef) to the entry to access it.
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using MCSymbolTableEntry = StringMapEntry<MCSymbolTableValue>;
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} // end namespace llvm
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#endif
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