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tomteb
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carbon-lang
1
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شاخه‌ها تگ‌ها
carbon-lang
/
toolchain
/
check
/
testdata
/
if
/
unreachable_fallthrough.carbon

unreachable_fallthrough.carbon 7.1 KB
تاريخچه خام

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  1. // Part of the Carbon Language project, under the Apache License v2.0 with LLVM
    2. 

  2. // Exceptions. See /LICENSE for license information.
    3. 

  3. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
    4. 

  4. //
    5. 

  5. // AUTOUPDATE
    6. 

  6. // TIP: To test this file alone, run:
    7. 

  7. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/if/unreachable_fallthrough.carbon
    8. 

  8. // TIP: To dump output, run:
    9. 

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/if/unreachable_fallthrough.carbon
    10. 

  10. 

  11. fn If(b: bool) -> i32 {
    12. 

  12.   if (b) {
    13. 

  13.     return 1;
    14. 

  14.   } else {
    15. 

  15.     return 2;
    16. 

  16.   }
    17. 

  17.   // Missing return here is OK.
    18. 

  18. }
    19. 

  19. 

  20. // CHECK:STDOUT: --- unreachable_fallthrough.carbon
    21. 

  21. // CHECK:STDOUT:
    22. 

  22. // CHECK:STDOUT: constants {
    23. 

  23. // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
    24. 

  24. // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
    25. 

  25. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    26. 

  26. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    27. 

  27. // CHECK:STDOUT:   %If.type: type = fn_type @If [concrete]
    28. 

  28. // CHECK:STDOUT:   %If: %If.type = struct_value () [concrete]
    29. 

  29. // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
    30. 

  30. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
    31. 

  31. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
    32. 

  32. // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (imports.%Core.import_ref.a5b), @impl.4f9 [concrete]
    33. 

  33. // CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness %ImplicitAs.impl_witness_table.a2f, @impl.4f9(%int_32) [concrete]
    34. 

  34. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @impl.4f9(%int_32) [concrete]
    35. 

  35. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [concrete]
    36. 

  36. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
    37. 

  37. // CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
    38. 

  38. // CHECK:STDOUT:   %Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Convert.956 [concrete]
    39. 

  39. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
    40. 

  40. // CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Convert.specific_fn [concrete]
    41. 

  41. // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
    42. 

  42. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
    43. 

  43. // CHECK:STDOUT:   %Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Convert.956 [concrete]
    44. 

  44. // CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Convert.specific_fn [concrete]
    45. 

  45. // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
    46. 

  46. // CHECK:STDOUT: }
    47. 

  47. // CHECK:STDOUT:
    48. 

  48. // CHECK:STDOUT: imports {
    49. 

  49. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    50. 

  50. // CHECK:STDOUT:     .Bool = %Core.Bool
    51. 

  51. // CHECK:STDOUT:     .Int = %Core.Int
    52. 

  52. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    53. 

  53. // CHECK:STDOUT:     import Core//prelude
    54. 

  54. // CHECK:STDOUT:     import Core//prelude/...
    55. 

  55. // CHECK:STDOUT:   }
    56. 

  56. // CHECK:STDOUT: }
    57. 

  57. // CHECK:STDOUT:
    58. 

  58. // CHECK:STDOUT: file {
    59. 

  59. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    60. 

  60. // CHECK:STDOUT:     .Core = imports.%Core
    61. 

  61. // CHECK:STDOUT:     .If = %If.decl
    62. 

  62. // CHECK:STDOUT:   }
    63. 

  63. // CHECK:STDOUT:   %Core.import = import Core
    64. 

  64. // CHECK:STDOUT:   %If.decl: %If.type = fn_decl @If [concrete = constants.%If] {
    65. 

  65. // CHECK:STDOUT:     %b.patt: bool = binding_pattern b
    66. 

  66. // CHECK:STDOUT:     %b.param_patt: bool = value_param_pattern %b.patt, call_param0
    67. 

  67. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    68. 

  68. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, call_param1
    69. 

  69. // CHECK:STDOUT:   } {
    70. 

  70. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    71. 

  71. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    72. 

  72. // CHECK:STDOUT:     %b.param: bool = value_param call_param0
    73. 

  73. // CHECK:STDOUT:     %.loc11_10.1: type = splice_block %.loc11_10.3 [concrete = bool] {
    74. 

  74. // CHECK:STDOUT:       %bool.make_type: init type = call constants.%Bool() [concrete = bool]
    75. 

  75. // CHECK:STDOUT:       %.loc11_10.2: type = value_of_initializer %bool.make_type [concrete = bool]
    76. 

  76. // CHECK:STDOUT:       %.loc11_10.3: type = converted %bool.make_type, %.loc11_10.2 [concrete = bool]
    77. 

  77. // CHECK:STDOUT:     }
    78. 

  78. // CHECK:STDOUT:     %b: bool = bind_name b, %b.param
    79. 

  79. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param1
    80. 

  80. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    81. 

  81. // CHECK:STDOUT:   }
    82. 

  82. // CHECK:STDOUT: }
    83. 

  83. // CHECK:STDOUT:
    84. 

  84. // CHECK:STDOUT: fn @If(%b.param: bool) -> %i32 {
    85. 

  85. // CHECK:STDOUT: !entry:
    86. 

  86. // CHECK:STDOUT:   %b.ref: bool = name_ref b, %b
    87. 

  87. // CHECK:STDOUT:   if %b.ref br !if.then else br !if.else
    88. 

  88. // CHECK:STDOUT:
    89. 

  89. // CHECK:STDOUT: !if.then:
    90. 

  90. // CHECK:STDOUT:   %int_1: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    91. 

  91. // CHECK:STDOUT:   %impl.elem0.loc13: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    92. 

  92. // CHECK:STDOUT:   %bound_method.loc13_13.1: <bound method> = bound_method %int_1, %impl.elem0.loc13 [concrete = constants.%Convert.bound.ab5]
    93. 

  93. // CHECK:STDOUT:   %specific_fn.loc13: <specific function> = specific_function %impl.elem0.loc13, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    94. 

  94. // CHECK:STDOUT:   %bound_method.loc13_13.2: <bound method> = bound_method %int_1, %specific_fn.loc13 [concrete = constants.%bound_method.9a1]
    95. 

  95. // CHECK:STDOUT:   %int.convert_checked.loc13: init %i32 = call %bound_method.loc13_13.2(%int_1) [concrete = constants.%int_1.5d2]
    96. 

  96. // CHECK:STDOUT:   %.loc13_13.1: %i32 = value_of_initializer %int.convert_checked.loc13 [concrete = constants.%int_1.5d2]
    97. 

  97. // CHECK:STDOUT:   %.loc13_13.2: %i32 = converted %int_1, %.loc13_13.1 [concrete = constants.%int_1.5d2]
    98. 

  98. // CHECK:STDOUT:   return %.loc13_13.2
    99. 

  99. // CHECK:STDOUT:
    100. 

  100. // CHECK:STDOUT: !if.else:
    101. 

  101. // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
    102. 

  102. // CHECK:STDOUT:   %impl.elem0.loc15: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    103. 

  103. // CHECK:STDOUT:   %bound_method.loc15_13.1: <bound method> = bound_method %int_2, %impl.elem0.loc15 [concrete = constants.%Convert.bound.ef9]
    104. 

  104. // CHECK:STDOUT:   %specific_fn.loc15: <specific function> = specific_function %impl.elem0.loc15, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    105. 

  105. // CHECK:STDOUT:   %bound_method.loc15_13.2: <bound method> = bound_method %int_2, %specific_fn.loc15 [concrete = constants.%bound_method.b92]
    106. 

  106. // CHECK:STDOUT:   %int.convert_checked.loc15: init %i32 = call %bound_method.loc15_13.2(%int_2) [concrete = constants.%int_2.ef8]
    107. 

  107. // CHECK:STDOUT:   %.loc15_13.1: %i32 = value_of_initializer %int.convert_checked.loc15 [concrete = constants.%int_2.ef8]
    108. 

  108. // CHECK:STDOUT:   %.loc15_13.2: %i32 = converted %int_2, %.loc15_13.1 [concrete = constants.%int_2.ef8]
    109. 

  109. // CHECK:STDOUT:   return %.loc15_13.2
    110. 

  110. // CHECK:STDOUT: }
    111. 

  111. // CHECK:STDOUT:
    112.