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function_param.carbon

function_param.carbon 12 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. // 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/array/function_param.carbon
    8. 

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

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

  10. 

  11. fn F(arr: [i32; 3], i: i32) -> i32 {
    12. 

  12.   return arr[i];
    13. 

  13. }
    14. 

  14. 

  15. fn G() -> i32 {
    16. 

  16.   return F((1, 2, 3), 1);
    17. 

  17. }
    18. 

  18. 

  19. // CHECK:STDOUT: --- function_param.carbon
    20. 

  20. // CHECK:STDOUT:
    21. 

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

  22. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    23. 

  23. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    24. 

  24. // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [template]
    25. 

  25. // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32 [template]
    26. 

  26. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    27. 

  27. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    28. 

  28. // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
    29. 

  29. // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
    30. 

  30. // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [template]
    31. 

  31. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [template]
    32. 

  32. // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [template]
    33. 

  33. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template]
    34. 

  34. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    35. 

  35. // CHECK:STDOUT:   %impl_witness.d39: <witness> = impl_witness (imports.%import_ref.a5b), @impl.1(%int_32) [template]
    36. 

  36. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @impl.1(%int_32) [template]
    37. 

  37. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [template]
    38. 

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

  39. // CHECK:STDOUT:   %Convert.specific_fn.70c: <specific function> = specific_function %Convert.bound.ab5, @Convert.2(%int_32) [template]
    40. 

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

  41. // CHECK:STDOUT:   %Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Convert.956 [template]
    42. 

  42. // CHECK:STDOUT:   %Convert.specific_fn.787: <specific function> = specific_function %Convert.bound.ef9, @Convert.2(%int_32) [template]
    43. 

  43. // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [template]
    44. 

  44. // CHECK:STDOUT:   %Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Convert.956 [template]
    45. 

  45. // CHECK:STDOUT:   %Convert.specific_fn.b42: <specific function> = specific_function %Convert.bound.b30, @Convert.2(%int_32) [template]
    46. 

  46. // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [template]
    47. 

  47. // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_1.5d2, %int_2.ef8, %int_3.822) [template]
    48. 

  48. // CHECK:STDOUT: }
    49. 

  49. // CHECK:STDOUT:
    50. 

  50. // CHECK:STDOUT: imports {
    51. 

  51. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    52. 

  52. // CHECK:STDOUT:     .Int = %import_ref.485
    53. 

  53. // CHECK:STDOUT:     .ImplicitAs = %import_ref.d44
    54. 

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

  55. // CHECK:STDOUT:     import Core//prelude/...
    56. 

  56. // CHECK:STDOUT:   }
    57. 

  57. // CHECK:STDOUT: }
    58. 

  58. // CHECK:STDOUT:
    59. 

  59. // CHECK:STDOUT: file {
    60. 

  60. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    61. 

  61. // CHECK:STDOUT:     .Core = imports.%Core
    62. 

  62. // CHECK:STDOUT:     .F = %F.decl
    63. 

  63. // CHECK:STDOUT:     .G = %G.decl
    64. 

  64. // CHECK:STDOUT:   }
    65. 

  65. // CHECK:STDOUT:   %Core.import = import Core
    66. 

  66. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
    67. 

  67. // CHECK:STDOUT:     %arr.patt: %array_type = binding_pattern arr
    68. 

  68. // CHECK:STDOUT:     %arr.param_patt: %array_type = value_param_pattern %arr.patt, runtime_param0
    69. 

  69. // CHECK:STDOUT:     %i.patt: %i32 = binding_pattern i
    70. 

  70. // CHECK:STDOUT:     %i.param_patt: %i32 = value_param_pattern %i.patt, runtime_param1
    71. 

  71. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    72. 

  72. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param2
    73. 

  73. // CHECK:STDOUT:   } {
    74. 

  74. // CHECK:STDOUT:     %int_32.loc11_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    75. 

  75. // CHECK:STDOUT:     %i32.loc11_32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    76. 

  76. // CHECK:STDOUT:     %arr.param: %array_type = value_param runtime_param0
    77. 

  77. // CHECK:STDOUT:     %.loc11_18: type = splice_block %array_type [template = constants.%array_type] {
    78. 

  78. // CHECK:STDOUT:       %int_32.loc11_12: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    79. 

  79. // CHECK:STDOUT:       %i32.loc11_12: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    80. 

  80. // CHECK:STDOUT:       %int_3: Core.IntLiteral = int_value 3 [template = constants.%int_3.1ba]
    81. 

  81. // CHECK:STDOUT:       %array_type: type = array_type %int_3, %i32 [template = constants.%array_type]
    82. 

  82. // CHECK:STDOUT:     }
    83. 

  83. // CHECK:STDOUT:     %arr: %array_type = bind_name arr, %arr.param
    84. 

  84. // CHECK:STDOUT:     %i.param: %i32 = value_param runtime_param1
    85. 

  85. // CHECK:STDOUT:     %.loc11_24: type = splice_block %i32.loc11_24 [template = constants.%i32] {
    86. 

  86. // CHECK:STDOUT:       %int_32.loc11_24: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    87. 

  87. // CHECK:STDOUT:       %i32.loc11_24: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    88. 

  88. // CHECK:STDOUT:     }
    89. 

  89. // CHECK:STDOUT:     %i: %i32 = bind_name i, %i.param
    90. 

  90. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param2
    91. 

  91. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    92. 

  92. // CHECK:STDOUT:   }
    93. 

  93. // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
    94. 

  94. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    95. 

  95. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, runtime_param0
    96. 

  96. // CHECK:STDOUT:   } {
    97. 

  97. // CHECK:STDOUT:     %int_32: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    98. 

  98. // CHECK:STDOUT:     %i32: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    99. 

  99. // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param0
    100. 

  100. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    101. 

  101. // CHECK:STDOUT:   }
    102. 

  102. // CHECK:STDOUT: }
    103. 

  103. // CHECK:STDOUT:
    104. 

  104. // CHECK:STDOUT: fn @F(%arr.param_patt: %array_type, %i.param_patt: %i32) -> %i32 {
    105. 

  105. // CHECK:STDOUT: !entry:
    106. 

  106. // CHECK:STDOUT:   %arr.ref: %array_type = name_ref arr, %arr
    107. 

  107. // CHECK:STDOUT:   %i.ref: %i32 = name_ref i, %i
    108. 

  108. // CHECK:STDOUT:   %int_32.loc12: Core.IntLiteral = int_value 32 [template = constants.%int_32]
    109. 

  109. // CHECK:STDOUT:   %i32.loc12: type = class_type @Int, @Int(constants.%int_32) [template = constants.%i32]
    110. 

  110. // CHECK:STDOUT:   %.loc12_15.1: ref %array_type = value_as_ref %arr.ref
    111. 

  111. // CHECK:STDOUT:   %.loc12_15.2: ref %i32 = array_index %.loc12_15.1, %i.ref
    112. 

  112. // CHECK:STDOUT:   %.loc12_15.3: %i32 = bind_value %.loc12_15.2
    113. 

  113. // CHECK:STDOUT:   return %.loc12_15.3
    114. 

  114. // CHECK:STDOUT: }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: fn @G() -> %i32 {
    117. 

  117. // CHECK:STDOUT: !entry:
    118. 

  118. // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [template = constants.%F]
    119. 

  119. // CHECK:STDOUT:   %int_1.loc16_13: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    120. 

  120. // CHECK:STDOUT:   %int_2.loc16_16: Core.IntLiteral = int_value 2 [template = constants.%int_2.ecc]
    121. 

  121. // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [template = constants.%int_3.1ba]
    122. 

  122. // CHECK:STDOUT:   %.loc16_20.1: %tuple.type = tuple_literal (%int_1.loc16_13, %int_2.loc16_16, %int_3)
    123. 

  123. // CHECK:STDOUT:   %int_1.loc16_23: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    124. 

  124. // CHECK:STDOUT:   %impl.elem0.loc16_20.1: %Convert.type.1b6 = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    125. 

  125. // CHECK:STDOUT:   %Convert.bound.loc16_20.1: <bound method> = bound_method %int_1.loc16_13, %impl.elem0.loc16_20.1 [template = constants.%Convert.bound.ab5]
    126. 

  126. // CHECK:STDOUT:   %Convert.specific_fn.loc16_20.1: <specific function> = specific_function %Convert.bound.loc16_20.1, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.70c]
    127. 

  127. // CHECK:STDOUT:   %int.convert_checked.loc16_20.1: init %i32 = call %Convert.specific_fn.loc16_20.1(%int_1.loc16_13) [template = constants.%int_1.5d2]
    128. 

  128. // CHECK:STDOUT:   %.loc16_20.2: init %i32 = converted %int_1.loc16_13, %int.convert_checked.loc16_20.1 [template = constants.%int_1.5d2]
    129. 

  129. // CHECK:STDOUT:   %.loc16_20.3: ref %array_type = temporary_storage
    130. 

  130. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template = constants.%int_0]
    131. 

  131. // CHECK:STDOUT:   %.loc16_20.4: ref %i32 = array_index %.loc16_20.3, %int_0
    132. 

  132. // CHECK:STDOUT:   %.loc16_20.5: init %i32 = initialize_from %.loc16_20.2 to %.loc16_20.4 [template = constants.%int_1.5d2]
    133. 

  133. // CHECK:STDOUT:   %impl.elem0.loc16_20.2: %Convert.type.1b6 = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    134. 

  134. // CHECK:STDOUT:   %Convert.bound.loc16_20.2: <bound method> = bound_method %int_2.loc16_16, %impl.elem0.loc16_20.2 [template = constants.%Convert.bound.ef9]
    135. 

  135. // CHECK:STDOUT:   %Convert.specific_fn.loc16_20.2: <specific function> = specific_function %Convert.bound.loc16_20.2, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.787]
    136. 

  136. // CHECK:STDOUT:   %int.convert_checked.loc16_20.2: init %i32 = call %Convert.specific_fn.loc16_20.2(%int_2.loc16_16) [template = constants.%int_2.ef8]
    137. 

  137. // CHECK:STDOUT:   %.loc16_20.6: init %i32 = converted %int_2.loc16_16, %int.convert_checked.loc16_20.2 [template = constants.%int_2.ef8]
    138. 

  138. // CHECK:STDOUT:   %int_1.loc16_20: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    139. 

  139. // CHECK:STDOUT:   %.loc16_20.7: ref %i32 = array_index %.loc16_20.3, %int_1.loc16_20
    140. 

  140. // CHECK:STDOUT:   %.loc16_20.8: init %i32 = initialize_from %.loc16_20.6 to %.loc16_20.7 [template = constants.%int_2.ef8]
    141. 

  141. // CHECK:STDOUT:   %impl.elem0.loc16_20.3: %Convert.type.1b6 = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    142. 

  142. // CHECK:STDOUT:   %Convert.bound.loc16_20.3: <bound method> = bound_method %int_3, %impl.elem0.loc16_20.3 [template = constants.%Convert.bound.b30]
    143. 

  143. // CHECK:STDOUT:   %Convert.specific_fn.loc16_20.3: <specific function> = specific_function %Convert.bound.loc16_20.3, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.b42]
    144. 

  144. // CHECK:STDOUT:   %int.convert_checked.loc16_20.3: init %i32 = call %Convert.specific_fn.loc16_20.3(%int_3) [template = constants.%int_3.822]
    145. 

  145. // CHECK:STDOUT:   %.loc16_20.9: init %i32 = converted %int_3, %int.convert_checked.loc16_20.3 [template = constants.%int_3.822]
    146. 

  146. // CHECK:STDOUT:   %int_2.loc16_20: Core.IntLiteral = int_value 2 [template = constants.%int_2.ecc]
    147. 

  147. // CHECK:STDOUT:   %.loc16_20.10: ref %i32 = array_index %.loc16_20.3, %int_2.loc16_20
    148. 

  148. // CHECK:STDOUT:   %.loc16_20.11: init %i32 = initialize_from %.loc16_20.9 to %.loc16_20.10 [template = constants.%int_3.822]
    149. 

  149. // CHECK:STDOUT:   %.loc16_20.12: init %array_type = array_init (%.loc16_20.5, %.loc16_20.8, %.loc16_20.11) to %.loc16_20.3 [template = constants.%array]
    150. 

  150. // CHECK:STDOUT:   %.loc16_20.13: init %array_type = converted %.loc16_20.1, %.loc16_20.12 [template = constants.%array]
    151. 

  151. // CHECK:STDOUT:   %.loc16_20.14: ref %array_type = temporary %.loc16_20.3, %.loc16_20.13
    152. 

  152. // CHECK:STDOUT:   %.loc16_20.15: %array_type = bind_value %.loc16_20.14
    153. 

  153. // CHECK:STDOUT:   %impl.elem0.loc16_23: %Convert.type.1b6 = impl_witness_access constants.%impl_witness.d39, element0 [template = constants.%Convert.956]
    154. 

  154. // CHECK:STDOUT:   %Convert.bound.loc16_23: <bound method> = bound_method %int_1.loc16_23, %impl.elem0.loc16_23 [template = constants.%Convert.bound.ab5]
    155. 

  155. // CHECK:STDOUT:   %Convert.specific_fn.loc16_23: <specific function> = specific_function %Convert.bound.loc16_23, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.70c]
    156. 

  156. // CHECK:STDOUT:   %int.convert_checked.loc16_23: init %i32 = call %Convert.specific_fn.loc16_23(%int_1.loc16_23) [template = constants.%int_1.5d2]
    157. 

  157. // CHECK:STDOUT:   %.loc16_23.1: %i32 = value_of_initializer %int.convert_checked.loc16_23 [template = constants.%int_1.5d2]
    158. 

  158. // CHECK:STDOUT:   %.loc16_23.2: %i32 = converted %int_1.loc16_23, %.loc16_23.1 [template = constants.%int_1.5d2]
    159. 

  159. // CHECK:STDOUT:   %F.call: init %i32 = call %F.ref(%.loc16_20.15, %.loc16_23.2)
    160. 

  160. // CHECK:STDOUT:   %.loc16_25.1: %i32 = value_of_initializer %F.call
    161. 

  161. // CHECK:STDOUT:   %.loc16_25.2: %i32 = converted %F.call, %.loc16_25.1
    162. 

  162. // CHECK:STDOUT:   return %.loc16_25.2
    163. 

  163. // CHECK:STDOUT: }
    164. 

  164. // CHECK:STDOUT:
    165.