# RUN: yaml2obj %s -o %t.obj
# RUN: lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.abc /merge:.bar=.def %t.obj /debug
# RUN: llvm-readobj --sections %t.exe | FileCheck %s

# RUN: lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.bar /merge:.bar=.abc %t.obj /debug
# RUN: llvm-readobj --sections %t.exe | FileCheck --check-prefix=CHECK2 %s

# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.rsrc=.foo %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-RSRC %s
# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.rsrc %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-RSRC %s
# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.reloc=.foo %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-RELOC %s
# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.reloc %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-RELOC %s
# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.foo1 /merge:.foo1=.foo %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-CYCLE %s
# RUN: env LLD_IN_TEST=1 not lld-link /out:%t.exe /entry:main /subsystem:console /force \
# RUN:   /merge:.foo=.foo1 /merge:.foo1=.foo2 /merge:.foo2=.foo1 %t.obj /debug 2>&1 | FileCheck --check-prefix=NO-CYCLE %s

# CHECK: Name: .def
# CHECK: Name: .abc

# CHECK2-NOT: Name: .bar
# CHECK2: Name: .abc
# CHECK2-NOT: Name: .bar

# NO-RSRC: /merge: cannot merge '.rsrc' with any section
# NO-RELOC: /merge: cannot merge '.reloc' with any section

# NO-CYCLE: /merge: cycle found for section '.foo'

--- !COFF
header:
  Machine:         IMAGE_FILE_MACHINE_AMD64
  Characteristics: []
sections:
  - Name:            .foo
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
    Alignment:       4
    SectionData:     000000000000
  - Name:            .bar
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
    Alignment:       4
    SectionData:     000000000000
symbols:
  - Name:            .foo
    Value:           0
    SectionNumber:   1
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
    SectionDefinition:
      Length:          6
      NumberOfRelocations: 0
      NumberOfLinenumbers: 0
      CheckSum:        0
      Number:          0
  - Name:            .bar
    Value:           0
    SectionNumber:   2
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
    SectionDefinition:
      Length:          6
      NumberOfRelocations: 0
      NumberOfLinenumbers: 0
      CheckSum:        0
      Number:          0
  - Name:            main
    Value:           0
    SectionNumber:   1
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_FUNCTION
    StorageClass:    IMAGE_SYM_CLASS_EXTERNAL
...