1 files changed, 67 insertions, 0 deletions
diff --git a/clang-r353983/include/llvm/DebugInfo/DWARF/DWARFAddressRange.h b/clang-r353983/include/llvm/DebugInfo/DWARF/DWARFAddressRange.h
new file mode 100644
index 00000000..56d46c69
--- /dev/null
+++ b/clang-r353983/include/llvm/DebugInfo/DWARF/DWARFAddressRange.h
@@ -0,0 +1,67 @@
+//===- DWARFAddressRange.h --------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H
+#define LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H
+
+#include "llvm/DebugInfo/DIContext.h"
+#include <cstdint>
+#include <tuple>
+#include <vector>
+
+namespace llvm {
+
+class raw_ostream;
+
+struct DWARFAddressRange {
+  uint64_t LowPC;
+  uint64_t HighPC;
+  uint64_t SectionIndex;
+
+  DWARFAddressRange() = default;
+
+  /// Used for unit testing.
+  DWARFAddressRange(uint64_t LowPC, uint64_t HighPC, uint64_t SectionIndex = 0)
+      : LowPC(LowPC), HighPC(HighPC), SectionIndex(SectionIndex) {}
+
+  /// Returns true if LowPC is smaller or equal to HighPC. This accounts for
+  /// dead-stripped ranges.
+  bool valid() const { return LowPC <= HighPC; }
+
+  /// Returns true if [LowPC, HighPC) intersects with [RHS.LowPC, RHS.HighPC).
+  bool intersects(const DWARFAddressRange &RHS) const {
+    assert(valid() && RHS.valid());
+    // Empty ranges can't intersect.
+    if (LowPC == HighPC || RHS.LowPC == RHS.HighPC)
+      return false;
+    return LowPC < RHS.HighPC && RHS.LowPC < HighPC;
+  }
+
+  /// Returns true if [LowPC, HighPC) fully contains [RHS.LowPC, RHS.HighPC).
+  bool contains(const DWARFAddressRange &RHS) const {
+    assert(valid() && RHS.valid());
+    return LowPC <= RHS.LowPC && RHS.HighPC <= HighPC;
+  }
+
+  void dump(raw_ostream &OS, uint32_t AddressSize,
+            DIDumpOptions DumpOpts = {}) const;
+};
+
+static inline bool operator<(const DWARFAddressRange &LHS,
+                             const DWARFAddressRange &RHS) {
+  return std::tie(LHS.LowPC, LHS.HighPC) < std::tie(RHS.LowPC, RHS.HighPC);
+}
+
+raw_ostream &operator<<(raw_ostream &OS, const DWARFAddressRange &R);
+
+/// DWARFAddressRangesVector - represents a set of absolute address ranges.
+using DWARFAddressRangesVector = std::vector<DWARFAddressRange>;
+
+} // end namespace llvm
+
+#endif // LLVM_DEBUGINFO_DWARF_DWARFADDRESSRANGE_H