Index: lit/Breakpoint/Inputs/split-dwarf-5-addrbase.dwo.yaml
===================================================================
--- lit/Breakpoint/Inputs/split-dwarf-5-addrbase.dwo.yaml
+++ lit/Breakpoint/Inputs/split-dwarf-5-addrbase.dwo.yaml
@@ -0,0 +1,35 @@
+--- !ELF
+FileHeader:      
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_REL
+  Machine:         EM_X86_64
+Sections:        
+  - Name:            .debug_loc.dwo
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_EXCLUDE ]
+    AddressAlign:    0x0000000000000001
+    Content:         ''
+  - Name:            .debug_str_offsets.dwo
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_EXCLUDE ]
+    AddressAlign:    0x0000000000000001
+    Content:         200000000500000000000000090000002C000000340000003C0000004000000045000000
+  - Name:            .debug_str.dwo
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_EXCLUDE, SHF_MERGE, SHF_STRINGS ]
+    AddressAlign:    0x0000000000000001
+    Content:         746573742E64776F00636C616E672076657273696F6E20382E302E3020287472756E6B203334373239392900746573742E6363005F5A3362617A760062617A006D61696E00696E7400
+  - Name:            .debug_info.dwo
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_EXCLUDE ]
+    AddressAlign:    0x0000000000000001
+    Content:         360000000500050800000000E93484C441B7E84A01000104000202000600000001560304010103011C0000000156050104350000000406050400
+  - Name:            .debug_abbrev.dwo
+    Type:            SHT_PROGBITS
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+Symbols:         {}
+DynamicSymbols:  {}
+...
Index: lit/Breakpoint/Inputs/split-dwarf-5-addrbase.yaml
===================================================================
--- lit/Breakpoint/Inputs/split-dwarf-5-addrbase.yaml
+++ lit/Breakpoint/Inputs/split-dwarf-5-addrbase.yaml
@@ -0,0 +1,61 @@
+--- !ELF
+FileHeader:      
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_X86_64
+  Entry:           0x0000000000400440
+Sections:
+  - Name:            .text
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+    Content:         '17000000020000000000280000003500000090696E740000000000'
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+    Type:            SHT_PROGBITS
+    AddressAlign:    0x0000000000000001
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+
Index: lit/Breakpoint/split-dwarf-5-addrbase.test
===================================================================
--- lit/Breakpoint/split-dwarf-5-addrbase.test
+++ lit/Breakpoint/split-dwarf-5-addrbase.test
@@ -0,0 +1,30 @@
+# RUN: rm -rf %t.dir
+# RUN: mkdir %t.dir
+# RUN: cd %t.dir
+# RUN: yaml2obj %p/Inputs/split-dwarf-5-addrbase.dwo.yaml > %t.dir/test.dwo
+# RUN: yaml2obj %p/Inputs/split-dwarf-5-addrbase.yaml > %t.dir/test
+# RUN: lldb-test breakpoints %t.dir/test %s | FileCheck %s
+
+# This test checks that source code location is shown correctly
+# when -gsplit-dwarf and DWARF 5 are used.
+#
+# split-dwarf-5-addrbase.dwo.yaml and split-dwarf-5-addrbase.yamlare
+# reduced yaml files produces from the dwo file and the corresponding executable.
+#
+# The following code was used initially:
+# void baz() {
+# }
+# 
+# int main() {
+#   baz();
+#   return 0;
+# }
+#
+# Invocation used to produce outputs was:
+# clang test.cc -g -fno-rtti -c -gdwarf-5 -gsplit-dwarf
+# clang test.o -g -fno-rtti -gdwarf-5 -o test -gsplit-dwarf
+# clang version 8.0.0 (trunk 347299)
+
+b baz
+# CHECK-LABEL: b baz
+# CHECK: Address: {{.*}}baz() + 4 at test.cc:2:1
Index: source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
===================================================================
--- source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
+++ source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp
@@ -307,8 +307,11 @@
 
 // m_die_array_mutex must be already held as read/write.
 void DWARFUnit::AddUnitDIE(const DWARFDebugInfoEntry &cu_die) {
-  SetAddrBase(
-      cu_die.GetAttributeValueAsUnsigned(m_dwarf, this, DW_AT_addr_base, 0));
+  dw_addr_t addr_base = cu_die.GetAttributeValueAsUnsigned(
+      m_dwarf, this, DW_AT_addr_base, LLDB_INVALID_ADDRESS);
+  if (addr_base != LLDB_INVALID_ADDRESS)
+    SetAddrBase(addr_base);
+
   SetRangesBase(cu_die.GetAttributeValueAsUnsigned(m_dwarf, this,
                                                    DW_AT_rnglists_base, 0));
 
@@ -342,8 +345,15 @@
 
   m_dwo_symbol_file = std::move(dwo_symbol_file);
 
-  dw_addr_t addr_base =
-      cu_die.GetAttributeValueAsUnsigned(m_dwarf, this, DW_AT_GNU_addr_base, 0);
+  // Here for DWO CU we want to use the address base set in the skeleton unit
+  // (DW_AT_addr_base) if it is available and use the DW_AT_GNU_addr_base
+  // otherwise. We do that because pre-DWARF v5 could use the DW_AT_GNU_*
+  // attributes which were applicable to the DWO units. The corresponding
+  // DW_AT_* attributes standardized in DWARF v5 are also applicable to the main
+  // unit in contrast.
+  if (addr_base == LLDB_INVALID_ADDRESS)
+    addr_base = cu_die.GetAttributeValueAsUnsigned(m_dwarf, this,
+                                                   DW_AT_GNU_addr_base, 0);
   dwo_cu->SetAddrBase(addr_base);
 
   dw_addr_t ranges_base = cu_die.GetAttributeValueAsUnsigned(