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convert.carbon

convert.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/let/convert.carbon
    8. 

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

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

  10. 

  11. fn F() -> i32 {
    12. 

  12.   var v: (i32, i32, i32) = (1, 2, 3);
    13. 

  13.   // Convert from object representation to value representation.
    14. 

  14.   let w: (i32, i32, i32) = v;
    15. 

  15.   return w.1;
    16. 

  16. }
    17. 

  17. 

  18. // CHECK:STDOUT: --- convert.carbon
    19. 

  19. // CHECK:STDOUT:
    20. 

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

  21. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    22. 

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

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

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

  25. // CHECK:STDOUT:   %tuple.type.ff9: type = tuple_type (type, type, type) [concrete]
    26. 

  26. // CHECK:STDOUT:   %tuple.type.189: type = tuple_type (%i32, %i32, %i32) [concrete]
    27. 

  27. // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
    28. 

  28. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
    29. 

  29. // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
    30. 

  30. // CHECK:STDOUT:   %tuple.type.37f: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
    31. 

  31. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
    32. 

  32. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
    33. 

  33. // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (imports.%Core.import_ref.a5b), @impl.4f9 [concrete]
    34. 

  34. // CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness %ImplicitAs.impl_witness_table.a2f, @impl.4f9(%int_32) [concrete]
    35. 

  35. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @impl.4f9(%int_32) [concrete]
    36. 

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

  37. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
    38. 

  38. // CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
    39. 

  39. // CHECK:STDOUT:   %Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Convert.956 [concrete]
    40. 

  40. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
    41. 

  41. // CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Convert.specific_fn [concrete]
    42. 

  42. // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [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:   %Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Convert.956 [concrete]
    47. 

  47. // CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Convert.specific_fn [concrete]
    48. 

  48. // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
    49. 

  49. // CHECK:STDOUT:   %tuple: %tuple.type.189 = tuple_value (%int_1.5d2, %int_2.ef8, %int_3.822) [concrete]
    50. 

  50. // CHECK:STDOUT: }
    51. 

  51. // CHECK:STDOUT:
    52. 

  52. // CHECK:STDOUT: imports {
    53. 

  53. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [concrete] {
    54. 

  54. // CHECK:STDOUT:     .Int = %Core.Int
    55. 

  55. // CHECK:STDOUT:     .ImplicitAs = %Core.ImplicitAs
    56. 

  56. // CHECK:STDOUT:     import Core//prelude
    57. 

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

  58. // CHECK:STDOUT:   }
    59. 

  59. // CHECK:STDOUT: }
    60. 

  60. // CHECK:STDOUT:
    61. 

  61. // CHECK:STDOUT: file {
    62. 

  62. // CHECK:STDOUT:   package: <namespace> = namespace [concrete] {
    63. 

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

  64. // CHECK:STDOUT:     .F = %F.decl
    65. 

  65. // CHECK:STDOUT:   }
    66. 

  66. // CHECK:STDOUT:   %Core.import = import Core
    67. 

  67. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [concrete = constants.%F] {
    68. 

  68. // CHECK:STDOUT:     %return.patt: %i32 = return_slot_pattern
    69. 

  69. // CHECK:STDOUT:     %return.param_patt: %i32 = out_param_pattern %return.patt, call_param0
    70. 

  70. // CHECK:STDOUT:   } {
    71. 

  71. // CHECK:STDOUT:     %int_32.loc11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    72. 

  72. // CHECK:STDOUT:     %i32.loc11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    73. 

  73. // CHECK:STDOUT:     %return.param: ref %i32 = out_param call_param0
    74. 

  74. // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
    75. 

  75. // CHECK:STDOUT:   }
    76. 

  76. // CHECK:STDOUT: }
    77. 

  77. // CHECK:STDOUT:
    78. 

  78. // CHECK:STDOUT: fn @F() -> %i32 {
    79. 

  79. // CHECK:STDOUT: !entry:
    80. 

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

  81. // CHECK:STDOUT:     %v.patt: %tuple.type.189 = binding_pattern v
    82. 

  82. // CHECK:STDOUT:     %.loc12_3.1: %tuple.type.189 = var_pattern %v.patt
    83. 

  83. // CHECK:STDOUT:   }
    84. 

  84. // CHECK:STDOUT:   %v.var: ref %tuple.type.189 = var v
    85. 

  85. // CHECK:STDOUT:   %int_1.loc12: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    86. 

  86. // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
    87. 

  87. // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
    88. 

  88. // CHECK:STDOUT:   %.loc12_36.1: %tuple.type.37f = tuple_literal (%int_1.loc12, %int_2, %int_3)
    89. 

  89. // CHECK:STDOUT:   %impl.elem0.loc12_36.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    90. 

  90. // CHECK:STDOUT:   %bound_method.loc12_36.1: <bound method> = bound_method %int_1.loc12, %impl.elem0.loc12_36.1 [concrete = constants.%Convert.bound.ab5]
    91. 

  91. // CHECK:STDOUT:   %specific_fn.loc12_36.1: <specific function> = specific_function %impl.elem0.loc12_36.1, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    92. 

  92. // CHECK:STDOUT:   %bound_method.loc12_36.2: <bound method> = bound_method %int_1.loc12, %specific_fn.loc12_36.1 [concrete = constants.%bound_method.9a1]
    93. 

  93. // CHECK:STDOUT:   %int.convert_checked.loc12_36.1: init %i32 = call %bound_method.loc12_36.2(%int_1.loc12) [concrete = constants.%int_1.5d2]
    94. 

  94. // CHECK:STDOUT:   %.loc12_36.2: init %i32 = converted %int_1.loc12, %int.convert_checked.loc12_36.1 [concrete = constants.%int_1.5d2]
    95. 

  95. // CHECK:STDOUT:   %tuple.elem0: ref %i32 = tuple_access %v.var, element0
    96. 

  96. // CHECK:STDOUT:   %.loc12_36.3: init %i32 = initialize_from %.loc12_36.2 to %tuple.elem0 [concrete = constants.%int_1.5d2]
    97. 

  97. // CHECK:STDOUT:   %impl.elem0.loc12_36.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    98. 

  98. // CHECK:STDOUT:   %bound_method.loc12_36.3: <bound method> = bound_method %int_2, %impl.elem0.loc12_36.2 [concrete = constants.%Convert.bound.ef9]
    99. 

  99. // CHECK:STDOUT:   %specific_fn.loc12_36.2: <specific function> = specific_function %impl.elem0.loc12_36.2, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    100. 

  100. // CHECK:STDOUT:   %bound_method.loc12_36.4: <bound method> = bound_method %int_2, %specific_fn.loc12_36.2 [concrete = constants.%bound_method.b92]
    101. 

  101. // CHECK:STDOUT:   %int.convert_checked.loc12_36.2: init %i32 = call %bound_method.loc12_36.4(%int_2) [concrete = constants.%int_2.ef8]
    102. 

  102. // CHECK:STDOUT:   %.loc12_36.4: init %i32 = converted %int_2, %int.convert_checked.loc12_36.2 [concrete = constants.%int_2.ef8]
    103. 

  103. // CHECK:STDOUT:   %tuple.elem1.loc12: ref %i32 = tuple_access %v.var, element1
    104. 

  104. // CHECK:STDOUT:   %.loc12_36.5: init %i32 = initialize_from %.loc12_36.4 to %tuple.elem1.loc12 [concrete = constants.%int_2.ef8]
    105. 

  105. // CHECK:STDOUT:   %impl.elem0.loc12_36.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    106. 

  106. // CHECK:STDOUT:   %bound_method.loc12_36.5: <bound method> = bound_method %int_3, %impl.elem0.loc12_36.3 [concrete = constants.%Convert.bound.b30]
    107. 

  107. // CHECK:STDOUT:   %specific_fn.loc12_36.3: <specific function> = specific_function %impl.elem0.loc12_36.3, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    108. 

  108. // CHECK:STDOUT:   %bound_method.loc12_36.6: <bound method> = bound_method %int_3, %specific_fn.loc12_36.3 [concrete = constants.%bound_method.047]
    109. 

  109. // CHECK:STDOUT:   %int.convert_checked.loc12_36.3: init %i32 = call %bound_method.loc12_36.6(%int_3) [concrete = constants.%int_3.822]
    110. 

  110. // CHECK:STDOUT:   %.loc12_36.6: init %i32 = converted %int_3, %int.convert_checked.loc12_36.3 [concrete = constants.%int_3.822]
    111. 

  111. // CHECK:STDOUT:   %tuple.elem2: ref %i32 = tuple_access %v.var, element2
    112. 

  112. // CHECK:STDOUT:   %.loc12_36.7: init %i32 = initialize_from %.loc12_36.6 to %tuple.elem2 [concrete = constants.%int_3.822]
    113. 

  113. // CHECK:STDOUT:   %.loc12_36.8: init %tuple.type.189 = tuple_init (%.loc12_36.3, %.loc12_36.5, %.loc12_36.7) to %v.var [concrete = constants.%tuple]
    114. 

  114. // CHECK:STDOUT:   %.loc12_3.2: init %tuple.type.189 = converted %.loc12_36.1, %.loc12_36.8 [concrete = constants.%tuple]
    115. 

  115. // CHECK:STDOUT:   assign %v.var, %.loc12_3.2
    116. 

  116. // CHECK:STDOUT:   %.loc12_24.1: type = splice_block %.loc12_24.3 [concrete = constants.%tuple.type.189] {
    117. 

  117. // CHECK:STDOUT:     %int_32.loc12_11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    118. 

  118. // CHECK:STDOUT:     %i32.loc12_11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    119. 

  119. // CHECK:STDOUT:     %int_32.loc12_16: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    120. 

  120. // CHECK:STDOUT:     %i32.loc12_16: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    121. 

  121. // CHECK:STDOUT:     %int_32.loc12_21: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    122. 

  122. // CHECK:STDOUT:     %i32.loc12_21: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    123. 

  123. // CHECK:STDOUT:     %.loc12_24.2: %tuple.type.ff9 = tuple_literal (%i32.loc12_11, %i32.loc12_16, %i32.loc12_21)
    124. 

  124. // CHECK:STDOUT:     %.loc12_24.3: type = converted %.loc12_24.2, constants.%tuple.type.189 [concrete = constants.%tuple.type.189]
    125. 

  125. // CHECK:STDOUT:   }
    126. 

  126. // CHECK:STDOUT:   %v: ref %tuple.type.189 = bind_name v, %v.var
    127. 

  127. // CHECK:STDOUT:   name_binding_decl {
    128. 

  128. // CHECK:STDOUT:     %w.patt: %tuple.type.189 = binding_pattern w
    129. 

  129. // CHECK:STDOUT:   }
    130. 

  130. // CHECK:STDOUT:   %v.ref: ref %tuple.type.189 = name_ref v, %v
    131. 

  131. // CHECK:STDOUT:   %.loc14_24.1: type = splice_block %.loc14_24.3 [concrete = constants.%tuple.type.189] {
    132. 

  132. // CHECK:STDOUT:     %int_32.loc14_11: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    133. 

  133. // CHECK:STDOUT:     %i32.loc14_11: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    134. 

  134. // CHECK:STDOUT:     %int_32.loc14_16: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    135. 

  135. // CHECK:STDOUT:     %i32.loc14_16: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    136. 

  136. // CHECK:STDOUT:     %int_32.loc14_21: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    137. 

  137. // CHECK:STDOUT:     %i32.loc14_21: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    138. 

  138. // CHECK:STDOUT:     %.loc14_24.2: %tuple.type.ff9 = tuple_literal (%i32.loc14_11, %i32.loc14_16, %i32.loc14_21)
    139. 

  139. // CHECK:STDOUT:     %.loc14_24.3: type = converted %.loc14_24.2, constants.%tuple.type.189 [concrete = constants.%tuple.type.189]
    140. 

  140. // CHECK:STDOUT:   }
    141. 

  141. // CHECK:STDOUT:   %w: ref %tuple.type.189 = bind_name w, %v.ref
    142. 

  142. // CHECK:STDOUT:   %w.ref: ref %tuple.type.189 = name_ref w, %w
    143. 

  143. // CHECK:STDOUT:   %int_1.loc15: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    144. 

  144. // CHECK:STDOUT:   %tuple.elem1.loc15: ref %i32 = tuple_access %w.ref, element1
    145. 

  145. // CHECK:STDOUT:   %.loc15: %i32 = bind_value %tuple.elem1.loc15
    146. 

  146. // CHECK:STDOUT:   return %.loc15
    147. 

  147. // CHECK:STDOUT: }
    148. 

  148. // CHECK:STDOUT:
    149.