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carbon-lang
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pointer
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nested_const.carbon

nested_const.carbon 8.2 KB
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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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
    6. 

  6. // TODO: Add ranges and switch to "--dump-sem-ir-ranges=only".
    7. 

  7. // EXTRA-ARGS: --dump-sem-ir-ranges=if-present
    8. 

  8. //
    9. 

  9. // AUTOUPDATE
    10. 

  10. // TIP: To test this file alone, run:
    11. 

  11. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/pointer/nested_const.carbon
    12. 

  12. // TIP: To dump output, run:
    13. 

  13. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/pointer/nested_const.carbon
    14. 

  14. 

  15. // TODO: The `const` in the return type should not be necessary.
    16. 

  16. fn F(p: const (const (const i32*)*)) -> const i32 {
    17. 

  17.   return **p;
    18. 

  18. }
    19. 

  19. 

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

  21. // CHECK:STDOUT:
    22. 

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

  23. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    24. 

  24. // CHECK:STDOUT:   %Int.type: type = generic_class_type @Int [concrete]
    25. 

  25. // CHECK:STDOUT:   %Int.generic: %Int.type = struct_value () [concrete]
    26. 

  26. // CHECK:STDOUT:   %N: Core.IntLiteral = bind_symbolic_name N, 0 [symbolic]
    27. 

  27. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    28. 

  28. // CHECK:STDOUT:   %const.20a: type = const_type %i32 [concrete]
    29. 

  29. // CHECK:STDOUT:   %ptr.36b: type = ptr_type %const.20a [concrete]
    30. 

  30. // CHECK:STDOUT:   %const.58f: type = const_type %ptr.36b [concrete]
    31. 

  31. // CHECK:STDOUT:   %ptr.6e8: type = ptr_type %const.58f [concrete]
    32. 

  32. // CHECK:STDOUT:   %const.fa2: type = const_type %ptr.6e8 [concrete]
    33. 

  33. // CHECK:STDOUT:   %pattern_type.800: type = pattern_type %const.fa2 [concrete]
    34. 

  34. // CHECK:STDOUT:   %pattern_type.a65: type = pattern_type %const.20a [concrete]
    35. 

  35. // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
    36. 

  36. // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
    37. 

  37. // CHECK:STDOUT:   %Copy.type: type = facet_type <@Copy> [concrete]
    38. 

  38. // CHECK:STDOUT:   %Copy.Op.type: type = fn_type @Copy.Op [concrete]
    39. 

  39. // CHECK:STDOUT:   %Int.as.Copy.impl.Op.type.afd: type = fn_type @Int.as.Copy.impl.Op, @Int.as.Copy.impl(%N) [symbolic]
    40. 

  40. // CHECK:STDOUT:   %Int.as.Copy.impl.Op.6cd: %Int.as.Copy.impl.Op.type.afd = struct_value () [symbolic]
    41. 

  41. // CHECK:STDOUT:   %T.be8: %Copy.type = bind_symbolic_name T, 0 [symbolic]
    42. 

  42. // CHECK:STDOUT:   %const.as.Copy.impl.Op.type.c2e: type = fn_type @const.as.Copy.impl.Op, @const.as.Copy.impl(%T.be8) [symbolic]
    43. 

  43. // CHECK:STDOUT:   %const.as.Copy.impl.Op.a33: %const.as.Copy.impl.Op.type.c2e = struct_value () [symbolic]
    44. 

  44. // CHECK:STDOUT:   %Copy.impl_witness.a32: <witness> = impl_witness imports.%Copy.impl_witness_table.1ed, @Int.as.Copy.impl(%int_32) [concrete]
    45. 

  45. // CHECK:STDOUT:   %Copy.facet.c49: %Copy.type = facet_value %i32, (%Copy.impl_witness.a32) [concrete]
    46. 

  46. // CHECK:STDOUT:   %Copy.impl_witness.e96: <witness> = impl_witness imports.%Copy.impl_witness_table.9cd, @const.as.Copy.impl(%Copy.facet.c49) [concrete]
    47. 

  47. // CHECK:STDOUT:   %const.as.Copy.impl.Op.type.1fc: type = fn_type @const.as.Copy.impl.Op, @const.as.Copy.impl(%Copy.facet.c49) [concrete]
    48. 

  48. // CHECK:STDOUT:   %const.as.Copy.impl.Op.c18: %const.as.Copy.impl.Op.type.1fc = struct_value () [concrete]
    49. 

  49. // CHECK:STDOUT:   %Copy.facet.b9f: %Copy.type = facet_value %const.20a, (%Copy.impl_witness.e96) [concrete]
    50. 

  50. // CHECK:STDOUT:   %.78c: type = fn_type_with_self_type %Copy.Op.type, %Copy.facet.b9f [concrete]
    51. 

  51. // CHECK:STDOUT:   %const.as.Copy.impl.Op.specific_fn: <specific function> = specific_function %const.as.Copy.impl.Op.c18, @const.as.Copy.impl.Op(%Copy.facet.c49) [concrete]
    52. 

  52. // CHECK:STDOUT: }
    53. 

  53. // CHECK:STDOUT:
    54. 

  54. // CHECK:STDOUT: imports {
    55. 

  55. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    56. 

  56. // CHECK:STDOUT:     .Int = %Core.Int
    57. 

  57. // CHECK:STDOUT:     .Copy = %Core.Copy
    58. 

  58. // CHECK:STDOUT:     import Core//prelude
    59. 

  59. // CHECK:STDOUT:     import Core//prelude/...
    60. 

  60. // CHECK:STDOUT:   }
    61. 

  61. // CHECK:STDOUT:   %Core.Int: %Int.type = import_ref Core//prelude/parts/int, Int, loaded [concrete = constants.%Int.generic]
    62. 

  62. // CHECK:STDOUT:   %Core.Copy: type = import_ref Core//prelude/parts/copy, Copy, loaded [concrete = constants.%Copy.type]
    63. 

  63. // CHECK:STDOUT:   %Core.import_ref.d0f6: @Int.as.Copy.impl.%Int.as.Copy.impl.Op.type (%Int.as.Copy.impl.Op.type.afd) = import_ref Core//prelude/parts/int, loc{{\d+_\d+}}, loaded [symbolic = @Int.as.Copy.impl.%Int.as.Copy.impl.Op (constants.%Int.as.Copy.impl.Op.6cd)]
    64. 

  64. // CHECK:STDOUT:   %Copy.impl_witness_table.1ed = impl_witness_table (%Core.import_ref.d0f6), @Int.as.Copy.impl [concrete]
    65. 

  65. // CHECK:STDOUT:   %Core.import_ref.722: @const.as.Copy.impl.%const.as.Copy.impl.Op.type (%const.as.Copy.impl.Op.type.c2e) = import_ref Core//prelude/parts/copy, loc{{\d+_\d+}}, loaded [symbolic = @const.as.Copy.impl.%const.as.Copy.impl.Op (constants.%const.as.Copy.impl.Op.a33)]
    66. 

  66. // CHECK:STDOUT:   %Copy.impl_witness_table.9cd = impl_witness_table (%Core.import_ref.722), @const.as.Copy.impl [concrete]
    67. 

  67. // CHECK:STDOUT: }
    68. 

  68. // CHECK:STDOUT:
    69. 

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

  70. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    71. 

  71. // CHECK:STDOUT:     .Core = imports.%Core
    72. 

  72. // CHECK:STDOUT:     .F = %F.decl
    73. 

  73. // CHECK:STDOUT:   }
    74. 

  74. // CHECK:STDOUT:   %Core.import = import Core
    75. 

  75. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
    76. 

  76. // CHECK:STDOUT:     %p.patt: %pattern_type.800 = binding_pattern p [concrete]
    77. 

  77. // CHECK:STDOUT:     %p.param_patt: %pattern_type.800 = value_param_pattern %p.patt, call_param0 [concrete]
    78. 

  78. // CHECK:STDOUT:     %return.patt: %pattern_type.a65 = return_slot_pattern [concrete]
    79. 

  79. // CHECK:STDOUT:     %return.param_patt: %pattern_type.a65 = out_param_pattern %return.patt, call_param1 [concrete]
    80. 

  80. // CHECK:STDOUT:   } {
    81. 

  81. // CHECK:STDOUT:     %int_32.loc16_47: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    82. 

  82. // CHECK:STDOUT:     %i32.loc16_47: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    83. 

  83. // CHECK:STDOUT:     %const.loc16_41: type = const_type %i32.loc16_47 [concrete = constants.%const.20a]
    84. 

  84. // CHECK:STDOUT:     %p.param: %const.fa2 = value_param call_param0
    85. 

  85. // CHECK:STDOUT:     %.loc16: type = splice_block %const.loc16_9 [concrete = constants.%const.fa2] {
    86. 

  86. // CHECK:STDOUT:       %int_32.loc16_29: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    87. 

  87. // CHECK:STDOUT:       %i32.loc16_29: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    88. 

  88. // CHECK:STDOUT:       %const.loc16_23: type = const_type %i32.loc16_29 [concrete = constants.%const.20a]
    89. 

  89. // CHECK:STDOUT:       %ptr.loc16_32: type = ptr_type %const.loc16_23 [concrete = constants.%ptr.36b]
    90. 

  90. // CHECK:STDOUT:       %const.loc16_16: type = const_type %ptr.loc16_32 [concrete = constants.%const.58f]
    91. 

  91. // CHECK:STDOUT:       %ptr.loc16_34: type = ptr_type %const.loc16_16 [concrete = constants.%ptr.6e8]
    92. 

  92. // CHECK:STDOUT:       %const.loc16_9: type = const_type %ptr.loc16_34 [concrete = constants.%const.fa2]
    93. 

  93. // CHECK:STDOUT:     }
    94. 

  94. // CHECK:STDOUT:     %p: %const.fa2 = bind_name p, %p.param
    95. 

  95. // CHECK:STDOUT:     %return.param: ref %const.20a = out_param call_param1
    96. 

  96. // CHECK:STDOUT:     %return: ref %const.20a = return_slot %return.param
    97. 

  97. // CHECK:STDOUT:   }
    98. 

  98. // CHECK:STDOUT: }
    99. 

  99. // CHECK:STDOUT:
    100. 

  100. // CHECK:STDOUT: fn @F(%p.param: %const.fa2) -> %const.20a {
    101. 

  101. // CHECK:STDOUT: !entry:
    102. 

  102. // CHECK:STDOUT:   %p.ref: %const.fa2 = name_ref p, %p
    103. 

  103. // CHECK:STDOUT:   %.loc17_11.1: ref %const.58f = deref %p.ref
    104. 

  104. // CHECK:STDOUT:   %.loc17_11.2: %const.58f = bind_value %.loc17_11.1
    105. 

  105. // CHECK:STDOUT:   %.loc17_10.1: ref %const.20a = deref %.loc17_11.2
    106. 

  106. // CHECK:STDOUT:   %.loc17_10.2: %const.20a = bind_value %.loc17_10.1
    107. 

  107. // CHECK:STDOUT:   %impl.elem0: %.78c = impl_witness_access constants.%Copy.impl_witness.e96, element0 [concrete = constants.%const.as.Copy.impl.Op.c18]
    108. 

  108. // CHECK:STDOUT:   %bound_method.loc17_10.1: <bound method> = bound_method %.loc17_10.2, %impl.elem0
    109. 

  109. // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @const.as.Copy.impl.Op(constants.%Copy.facet.c49) [concrete = constants.%const.as.Copy.impl.Op.specific_fn]
    110. 

  110. // CHECK:STDOUT:   %bound_method.loc17_10.2: <bound method> = bound_method %.loc17_10.2, %specific_fn
    111. 

  111. // CHECK:STDOUT:   %const.as.Copy.impl.Op.call: init %const.20a = call %bound_method.loc17_10.2(%.loc17_10.2)
    112. 

  112. // CHECK:STDOUT:   return %const.as.Copy.impl.Op.call to %return
    113. 

  113. // CHECK:STDOUT: }
    114. 

  114. // CHECK:STDOUT:
    115.