RUN: llvm-dwp %p/../Inputs/merge/notypes/c.dwo %p/../Inputs/merge/notypes/ab.dwp -o - | \
RUN:   llvm-dwarfdump -v - | FileCheck --check-prefix=CHECK %s

DWP from a DWO (c.dwo) and a DWP (ab.dwp, created from a.dwo and b.dwo)
Make sure the entries for A and B are updated correctly when read/processed from ab.dwp
a.cpp:
  struct foo { };
  foo a;

b.cpp:
  struct bar { };
  void b(bar) {
  }

c.cpp:
  typedef int baz;
  baz c() {
  }

CHECK-LABEL: .debug_abbrev.dwo contents:
CHECK-LABEL: Abbrev table for offset:
CHECK: 0x0000[[CAOFF:.*]]
CHECK-LABEL: Abbrev table for offset:
CHECK: 0x0000[[AAOFF:.*]]
CHECK-LABEL: Abbrev table for offset:
CHECK: 0x0000[[BAOFF:.*]]

CHECK: .debug_info.dwo contents:
CHECK: [[COFF:0x[0-9a-f]*]]:
CHECK-LABEL: Compile Unit: length = {{.*}}, version = 0x0004, abbr_offset =
CHECK:         0x[[CAOFF]], addr_size = 0x08 (next unit at [[AOFF:.*]])
CHECK:   DW_AT_GNU_dwo_id {{.*}} ([[DWOC:.*]])
CHECK: [[AOFF]]:
CHECK-LABEL: Compile Unit: length = {{.*}}, version = 0x0004, abbr_offset =
CHECK:         0x[[AAOFF]], addr_size = 0x08 (next unit at [[BOFF:.*]])
CHECK:   DW_AT_GNU_dwo_id {{.*}} ([[DWOA:.*]])
CHECK: [[BOFF]]:
CHECK-LABEL: Compile Unit: length = {{.*}}, version = 0x0004, abbr_offset =
CHECK:         0x[[BAOFF]], addr_size = 0x08 (next unit at [[XOFF:.*]])
CHECK:   DW_AT_GNU_dwo_id {{.*}} ([[DWOB:.*]])

CHECK-LABEL: .debug_cu_index
CHECK:    Index  Signature INFO                 ABBREV                             LINE                     STR_OFFSETS
CHECK-DAG:       [[DWOC]]  [[[COFF]], [[AOFF]]) [0x0000[[CAOFF]], 0x0000[[AAOFF]]) [0x00000000, 0x00000011) [0x00000000, 0x00000018)
CHECK-DAG:       [[DWOA]]  [[[AOFF]], [[BOFF]]) [0x0000[[AAOFF]], 0x0000[[BAOFF]]) [0x00000011, 0x00000022) [0x00000018, 0x00000028)
CHECK-DAG:       [[DWOB]]  [[[BOFF]], [[XOFF]]) [0x0000[[BAOFF]], 0x000000c3)      [0x00000022, 0x00000033) [0x00000028, 0x0000003c)