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DirectXShaderCo...
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tools
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clang
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test
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Preprocessor
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macro_expand_empty.c

macro_expand_empty.c 927 B
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  1. // RUN: %clang_cc1 -E %s | FileCheck --strict-whitespace %s
    2. 

  2. 

  3. // Check that this doesn't crash
    4. 

  4. 

  5. #define IDENTITY1(x) x
    6. 

  6. #define IDENTITY2(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x) IDENTITY1(x)
    7. 

  7. #define IDENTITY3(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x) IDENTITY2(x)
    8. 

  8. #define IDENTITY4(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x) IDENTITY3(x)
    9. 

  9. #define IDENTITY5(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x) IDENTITY4(x)
    10. 

  10. #define IDENTITY6(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x) IDENTITY5(x)
    11. 

  11. #define IDENTITY7(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x) IDENTITY6(x)
    12. 

  12. #define IDENTITY8(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x) IDENTITY7(x)
    13. 

  13. #define IDENTITY9(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x) IDENTITY8(x)
    14. 

  14. #define IDENTITY0(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x) IDENTITY9(x)
    15. 

  15. IDENTITY0()
    16. 

  16. 

  17. #define FOO() BAR() second
    18. 

  18. #define BAR()
    19. 

  19. first // CHECK: {{^}}first{{$}}
    20. 

  20. FOO() // CHECK: {{^}} second{{$}}
    21. 

  21. third // CHECK: {{^}}third{{$}}
    22.