Index: llvm/trunk/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
===================================================================
--- llvm/trunk/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
+++ llvm/trunk/lib/DebugInfo/DWARF/DWARFGdbIndex.cpp
@@ -39,8 +39,9 @@
      << '\n';
   for (const AddressEntry &Addr : AddressArea)
     OS << format(
-        "    Low address = 0x%llx, High address = 0x%llx, CU index = %d\n",
-        Addr.LowAddress, Addr.HighAddress, Addr.CuIndex);
+        "    Low/High address = [0x%llx, 0x%llx) (Size: 0x%llx), CU id = %d\n",
+        Addr.LowAddress, Addr.HighAddress, Addr.HighAddress - Addr.LowAddress,
+        Addr.CuIndex);
 }
 
 void DWARFGdbIndex::dumpSymbolTable(raw_ostream &OS) const {
Index: llvm/trunk/test/DebugInfo/dwarfdump-dump-gdbindex.test
===================================================================
--- llvm/trunk/test/DebugInfo/dwarfdump-dump-gdbindex.test
+++ llvm/trunk/test/DebugInfo/dwarfdump-dump-gdbindex.test
@@ -18,8 +18,8 @@
 ; CHECK-NEXT:   1: Offset = 0x34, Length = 0x34
 
 ; CHECK:      Address area offset = 0x38, has 2 entries:
-; CHECK-NEXT:   Low address = 0x4000e8, High address = 0x4000f3, CU index = 0
-; CHECK-NEXT:   Low address = 0x4000f3, High address = 0x4000fe, CU index = 1
+; CHECK-NEXT:   Low/High address = [0x4000e8, 0x4000f3) (Size: 0xb), CU id = 0
+; CHECK-NEXT:   Low/High address = [0x4000f3, 0x4000fe) (Size: 0xb), CU id = 1
 
 ; CHECK:      Symbol table offset = 0x60, size = 1024, filled slots:
 ; CHECK-NEXT:   489: Name offset = 0x1d, CU vector offset = 0x0