clang/test/Preprocessor/assembler-with-cpp.c

   1 // RUN: %clang_cc1 -x assembler-with-cpp -E %s -o - | FileCheck -strict-whitespace -check-prefix=CHECK-Identifiers-False %s
   2
   3 #ifndef __ASSEMBLER__
   4 #error "__ASSEMBLER__ not defined"
   5 #endif
   6
   7
   8 // Invalid token pasting is ok.
   9 #define A X ## .
  10 1: A
  11 // CHECK-Identifiers-False: 1: X .
  12
  13 // Line markers are not linemarkers in .S files, they are passed through.
  14 # 321
  15 // CHECK-Identifiers-False: # 321
  16
  17 // Unknown directives are passed through.
  18 # B C
  19 // CHECK-Identifiers-False: # B C
  20
  21 // Unknown directives are expanded.
  22 #define D(x) BAR ## x
  23 # D(42)
  24 // CHECK-Identifiers-False: # BAR42
  25
  26 // Unmatched quotes are permitted.
  27 2: '
  28 3: "
  29 // CHECK-Identifiers-False: 2: '
  30 // CHECK-Identifiers-False: 3: "
  31
  32 // (balance quotes to keep editors happy): "'
  33
  34 // Empty char literals are ok.
  35 4: ''
  36 // CHECK-Identifiers-False: 4: ''
  37
  38
  39 // Portions of invalid pasting should still expand as macros.
  40 #define M4 expanded
  41 #define M5() M4 ## (
  42
  43 5: M5()
  44 // CHECK-Identifiers-False: 5: expanded (
  45
  46 #define FOO(name)  name ## $foo
  47 6: FOO(blarg)
  48 // CHECK-Identifiers-False: 6: blarg $foo
  49
  50 // RUN: %clang_cc1 -x assembler-with-cpp -fdollars-in-identifiers -E %s -o - | FileCheck -check-prefix=CHECK-Identifiers-True -strict-whitespace %s
  51 #define FOO(name)  name ## $foo
  52 7: FOO(blarg)
  53 // CHECK-Identifiers-True: 7: blarg$foo
  54
  55 //
  56 #define T6() T6 #nostring
  57 #define T7(x) T7 #x
  58 8: T6()
  59 9: T7(foo)
  60 // CHECK-Identifiers-True: 8: T6 #nostring
  61 // CHECK-Identifiers-True: 9: T7 "foo"
  62
  63 // Concatenation with period doesn't leave a space
  64 #define T8(A,B) A ## B
  65 10: T8(.,T8)
  66 // CHECK-Identifiers-True: 10: .T8
  67
  68 // This should not crash.
  69 #define T11(a) #0
  70 11: T11(b)
  71 // CHECK-Identifiers-True: 11: #0
  72
  73 // Universal character names can specify basic ascii and control characters
  74 12: \u0020\u0030
  75 // CHECK-Identifiers-False: 12: \u0020\u0030
  76
  77 // This should not crash
  78 # ##
  79 // CHECK-Identifiers-False: # ##
  80
  81 #define X(a) # # # 1
  82 X(1)
  83 // CHECK-Identifiers-False: # # # 1