50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
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//===- DWARFLocationExpression.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_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H
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#define LLVM_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H
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#include "llvm/ADT/Optional.h"
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#include "llvm/DebugInfo/DWARF/DWARFAddressRange.h"
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namespace llvm {
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class raw_ostream;
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/// Represents a single DWARF expression, whose value is location-dependent.
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/// Typically used in DW_AT_location attributes to describe the location of
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/// objects.
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struct DWARFLocationExpression {
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/// The address range in which this expression is valid. None denotes a
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/// default entry which is valid in addresses not covered by other location
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/// expressions, or everywhere if there are no other expressions.
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Optional<DWARFAddressRange> Range;
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/// The expression itself.
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SmallVector<uint8_t, 4> Expr;
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};
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inline bool operator==(const DWARFLocationExpression &L,
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const DWARFLocationExpression &R) {
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return L.Range == R.Range && L.Expr == R.Expr;
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}
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inline bool operator!=(const DWARFLocationExpression &L,
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const DWARFLocationExpression &R) {
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return !(L == R);
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}
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raw_ostream &operator<<(raw_ostream &OS, const DWARFLocationExpression &Loc);
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/// Represents a set of absolute location expressions.
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using DWARFLocationExpressionsVector = std::vector<DWARFLocationExpression>;
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_DWARF_DWARFLOCATIONEXPRESSION_H
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