# Tests that an associative comdat being associated with another
# associated comdat later in the file produces an error.
# RUN: sed -e s/ASSOC1/2/ -e s/ASSOC2/3/ %s | yaml2obj > %t.obj
# RUN: not lld-link /include:symbol /dll /noentry /nodefaultlib %t.obj /out:%t.exe 2>&1 | FileCheck --check-prefix=FORWARD %s
# FORWARD: lld-link: error: {{.*}}: associative comdat .text$ac1 (sec 1) has invalid reference to section .text$ac2 (sec 2)
# FORWARD-NOT: lld-link: error:

# Tests that an associative comdat being associated with another
# associated comdat earlier in the file works.
# RUN: sed -e s/ASSOC1/3/ -e s/ASSOC2/1/ %s | yaml2obj > %t.obj

# RUN: lld-link /include:symbol /dll /noentry /nodefaultlib %t.obj /out:%t.exe
# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=BACKWARD %s
# BACKWARD: Contents of section .text:
# BACKWARD:   180001000 01000000 02000000 03000000 ............

# RUN: lld-link /dll /noentry /nodefaultlib %t.obj /out:%t.exe
# RUN: llvm-objdump -s %t.exe | FileCheck --check-prefix=BACKWARDDROP %s
# BACKWARDDROP-NOT: Contents of section .text:

--- !COFF
header:          
  Machine:         IMAGE_FILE_MACHINE_AMD64
  Characteristics: [  ]
sections:        
  - Name:            '.text$ac1'
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
    Alignment:       1
    SectionData:     '01000000'
  - Name:            '.text$ac2'
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
    Alignment:       1
    SectionData:     '02000000'
  - Name:            '.text$nm'
    Characteristics: [ IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_LNK_COMDAT, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE ]
    Alignment:       1
    SectionData:     '03000000'
symbols:         
  - Name:            '.text$ac1'
    Value:           0
    SectionNumber:   1
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
    SectionDefinition: 
      Length:          4
      NumberOfRelocations: 0
      NumberOfLinenumbers: 0
      CheckSum:        3099354981
      Number:          ASSOC1
      Selection:       IMAGE_COMDAT_SELECT_ASSOCIATIVE
  - Name:            '.text$ac2'
    Value:           0
    SectionNumber:   2
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
    SectionDefinition: 
      Length:          4
      NumberOfRelocations: 0
      NumberOfLinenumbers: 0
      CheckSum:        3099354981
      Number:          ASSOC2
      Selection:       IMAGE_COMDAT_SELECT_ASSOCIATIVE
  - Name:            '.text$nm'
    Value:           0
    SectionNumber:   3
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
    SectionDefinition: 
      Length:          4
      NumberOfRelocations: 0
      NumberOfLinenumbers: 0
      CheckSum:        3099354981
      Number:          4
      Selection:       IMAGE_COMDAT_SELECT_ANY
  - Name:            symbol
    Value:           0
    SectionNumber:   3
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_EXTERNAL
  - Name:            assocsym2
    Value:           0
    SectionNumber:   1
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
  - Name:            assocsym
    Value:           0
    SectionNumber:   2
    SimpleType:      IMAGE_SYM_TYPE_NULL
    ComplexType:     IMAGE_SYM_DTYPE_NULL
    StorageClass:    IMAGE_SYM_CLASS_STATIC
...