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index_not_literal.carbon

index_not_literal.carbon 17 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. //
    7. 

  7. // AUTOUPDATE
    8. 

  8. // TIP: To test this file alone, run:
    9. 

  9. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/array/index_not_literal.carbon
    10. 

  10. // TIP: To dump output, run:
    11. 

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/array/index_not_literal.carbon
    12. 

  12. 

  13. // --- function_param.carbon
    14. 

  14. 

  15. fn F(arr: array(i32, 3), i: i32) -> i32 {
    16. 

  16.   //@dump-sem-ir-begin
    17. 

  17.   return arr[i];
    18. 

  18.   //@dump-sem-ir-end
    19. 

  19. }
    20. 

  20. 

  21. fn G() -> i32 {
    22. 

  22.   //@dump-sem-ir-begin
    23. 

  23.   return F((1, 2, 3), 1);
    24. 

  24.   //@dump-sem-ir-end
    25. 

  25. }
    26. 

  26. 

  27. // --- index_non_literal.carbon
    28. 

  28. 

  29. library "[[@TEST_NAME]]";
    30. 

  30. 

  31. fn F(a: array({}, 3)) -> {} {
    32. 

  32.   //@dump-sem-ir-begin
    33. 

  33.   return a[{.index = 2}.index];
    34. 

  34.   //@dump-sem-ir-end
    35. 

  35. }
    36. 

  36. 

  37. // --- fail_out_of_bound_non_literal.carbon
    38. 

  38. 

  39. library "[[@TEST_NAME]]";
    40. 

  40. 

  41. fn F(a: array({}, 3)) -> {} {
    42. 

  42.   // CHECK:STDERR: fail_out_of_bound_non_literal.carbon:[[@LINE+4]]:12: error: array index `3` is past the end of type `array({}, 3)` [ArrayIndexOutOfBounds]
    43. 

  43.   // CHECK:STDERR:   return a[{.index = 3}.index];
    44. 

  44.   // CHECK:STDERR:            ^~~~~~~~~~~~~~~~~~
    45. 

  45.   // CHECK:STDERR:
    46. 

  46.   return a[{.index = 3}.index];
    47. 

  47. }
    48. 

  48. 

  49. // CHECK:STDOUT: --- function_param.carbon
    50. 

  50. // CHECK:STDOUT:
    51. 

  51. // CHECK:STDOUT: constants {
    52. 

  52. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    53. 

  53. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    54. 

  54. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    55. 

  55. // CHECK:STDOUT:   %int_3.1ba: Core.IntLiteral = int_value 3 [concrete]
    56. 

  56. // CHECK:STDOUT:   %array_type: type = array_type %int_3.1ba, %i32 [concrete]
    57. 

  57. // CHECK:STDOUT:   %F.type: type = fn_type @F [concrete]
    58. 

  58. // CHECK:STDOUT:   %F: %F.type = struct_value () [concrete]
    59. 

  59. // CHECK:STDOUT:   %ptr.f01: type = ptr_type %array_type [concrete]
    60. 

  60. // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [concrete]
    61. 

  61. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
    62. 

  62. // CHECK:STDOUT:   %tuple.type: type = tuple_type (Core.IntLiteral, Core.IntLiteral, Core.IntLiteral) [concrete]
    63. 

  63. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete]
    64. 

  64. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
    65. 

  65. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
    66. 

  66. // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
    67. 

  67. // CHECK:STDOUT:   %Convert.type.0f9: type = fn_type @Convert.2, @ImplicitAs.impl.4f9(%To) [symbolic]
    68. 

  68. // CHECK:STDOUT:   %Convert.f06: %Convert.type.0f9 = struct_value () [symbolic]
    69. 

  69. // CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @ImplicitAs.impl.4f9(%int_32) [concrete]
    70. 

  70. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @ImplicitAs.impl.4f9(%int_32) [concrete]
    71. 

  71. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [concrete]
    72. 

  72. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
    73. 

  73. // CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
    74. 

  74. // CHECK:STDOUT:   %Convert.bound.ab5: <bound method> = bound_method %int_1.5b8, %Convert.956 [concrete]
    75. 

  75. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
    76. 

  76. // CHECK:STDOUT:   %bound_method.9a1: <bound method> = bound_method %int_1.5b8, %Convert.specific_fn [concrete]
    77. 

  77. // CHECK:STDOUT:   %int_1.5d2: %i32 = int_value 1 [concrete]
    78. 

  78. // CHECK:STDOUT:   %Convert.bound.ef9: <bound method> = bound_method %int_2.ecc, %Convert.956 [concrete]
    79. 

  79. // CHECK:STDOUT:   %bound_method.b92: <bound method> = bound_method %int_2.ecc, %Convert.specific_fn [concrete]
    80. 

  80. // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
    81. 

  81. // CHECK:STDOUT:   %Convert.bound.b30: <bound method> = bound_method %int_3.1ba, %Convert.956 [concrete]
    82. 

  82. // CHECK:STDOUT:   %bound_method.047: <bound method> = bound_method %int_3.1ba, %Convert.specific_fn [concrete]
    83. 

  83. // CHECK:STDOUT:   %int_3.822: %i32 = int_value 3 [concrete]
    84. 

  84. // CHECK:STDOUT:   %array: %array_type = tuple_value (%int_1.5d2, %int_2.ef8, %int_3.822) [concrete]
    85. 

  85. // CHECK:STDOUT:   %Op.type.1e4: type = fn_type @Op.3, @Destroy.impl(%array_type) [concrete]
    86. 

  86. // CHECK:STDOUT:   %Op.f0b: %Op.type.1e4 = struct_value () [concrete]
    87. 

  87. // CHECK:STDOUT: }
    88. 

  88. // CHECK:STDOUT:
    89. 

  89. // CHECK:STDOUT: imports {
    90. 

  90. // CHECK:STDOUT:   %Core.import_ref.a5b: @ImplicitAs.impl.4f9.%Convert.type (%Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @ImplicitAs.impl.4f9.%Convert (constants.%Convert.f06)]
    91. 

  91. // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @ImplicitAs.impl.4f9 [concrete]
    92. 

  92. // CHECK:STDOUT: }
    93. 

  93. // CHECK:STDOUT:
    94. 

  94. // CHECK:STDOUT: fn @F(%arr.param: %array_type, %i.param: %i32) -> %i32 {
    95. 

  95. // CHECK:STDOUT: !entry:
    96. 

  96. // CHECK:STDOUT:   %arr.ref: %array_type = name_ref arr, %arr
    97. 

  97. // CHECK:STDOUT:   %i.ref: %i32 = name_ref i, %i
    98. 

  98. // CHECK:STDOUT:   %int_32.loc4: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    99. 

  99. // CHECK:STDOUT:   %i32.loc4: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    100. 

  100. // CHECK:STDOUT:   %.loc4_15.1: ref %array_type = value_as_ref %arr.ref
    101. 

  101. // CHECK:STDOUT:   %.loc4_15.2: ref %i32 = array_index %.loc4_15.1, %i.ref
    102. 

  102. // CHECK:STDOUT:   %.loc4_15.3: %i32 = bind_value %.loc4_15.2
    103. 

  103. // CHECK:STDOUT:   return %.loc4_15.3
    104. 

  104. // CHECK:STDOUT: }
    105. 

  105. // CHECK:STDOUT:
    106. 

  106. // CHECK:STDOUT: fn @G() -> %i32 {
    107. 

  107. // CHECK:STDOUT: !entry:
    108. 

  108. // CHECK:STDOUT:   %F.ref: %F.type = name_ref F, file.%F.decl [concrete = constants.%F]
    109. 

  109. // CHECK:STDOUT:   %int_1.loc10_13: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    110. 

  110. // CHECK:STDOUT:   %int_2.loc10_16: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
    111. 

  111. // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete = constants.%int_3.1ba]
    112. 

  112. // CHECK:STDOUT:   %.loc10_20.1: %tuple.type = tuple_literal (%int_1.loc10_13, %int_2.loc10_16, %int_3)
    113. 

  113. // CHECK:STDOUT:   %int_1.loc10_23: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    114. 

  114. // CHECK:STDOUT:   %impl.elem0.loc10_20.1: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    115. 

  115. // CHECK:STDOUT:   %bound_method.loc10_20.1: <bound method> = bound_method %int_1.loc10_13, %impl.elem0.loc10_20.1 [concrete = constants.%Convert.bound.ab5]
    116. 

  116. // CHECK:STDOUT:   %specific_fn.loc10_20.1: <specific function> = specific_function %impl.elem0.loc10_20.1, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    117. 

  117. // CHECK:STDOUT:   %bound_method.loc10_20.2: <bound method> = bound_method %int_1.loc10_13, %specific_fn.loc10_20.1 [concrete = constants.%bound_method.9a1]
    118. 

  118. // CHECK:STDOUT:   %int.convert_checked.loc10_20.1: init %i32 = call %bound_method.loc10_20.2(%int_1.loc10_13) [concrete = constants.%int_1.5d2]
    119. 

  119. // CHECK:STDOUT:   %.loc10_20.2: init %i32 = converted %int_1.loc10_13, %int.convert_checked.loc10_20.1 [concrete = constants.%int_1.5d2]
    120. 

  120. // CHECK:STDOUT:   %.loc10_20.3: ref %array_type = temporary_storage
    121. 

  121. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [concrete = constants.%int_0]
    122. 

  122. // CHECK:STDOUT:   %.loc10_20.4: ref %i32 = array_index %.loc10_20.3, %int_0
    123. 

  123. // CHECK:STDOUT:   %.loc10_20.5: init %i32 = initialize_from %.loc10_20.2 to %.loc10_20.4 [concrete = constants.%int_1.5d2]
    124. 

  124. // CHECK:STDOUT:   %impl.elem0.loc10_20.2: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    125. 

  125. // CHECK:STDOUT:   %bound_method.loc10_20.3: <bound method> = bound_method %int_2.loc10_16, %impl.elem0.loc10_20.2 [concrete = constants.%Convert.bound.ef9]
    126. 

  126. // CHECK:STDOUT:   %specific_fn.loc10_20.2: <specific function> = specific_function %impl.elem0.loc10_20.2, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    127. 

  127. // CHECK:STDOUT:   %bound_method.loc10_20.4: <bound method> = bound_method %int_2.loc10_16, %specific_fn.loc10_20.2 [concrete = constants.%bound_method.b92]
    128. 

  128. // CHECK:STDOUT:   %int.convert_checked.loc10_20.2: init %i32 = call %bound_method.loc10_20.4(%int_2.loc10_16) [concrete = constants.%int_2.ef8]
    129. 

  129. // CHECK:STDOUT:   %.loc10_20.6: init %i32 = converted %int_2.loc10_16, %int.convert_checked.loc10_20.2 [concrete = constants.%int_2.ef8]
    130. 

  130. // CHECK:STDOUT:   %int_1.loc10_20: Core.IntLiteral = int_value 1 [concrete = constants.%int_1.5b8]
    131. 

  131. // CHECK:STDOUT:   %.loc10_20.7: ref %i32 = array_index %.loc10_20.3, %int_1.loc10_20
    132. 

  132. // CHECK:STDOUT:   %.loc10_20.8: init %i32 = initialize_from %.loc10_20.6 to %.loc10_20.7 [concrete = constants.%int_2.ef8]
    133. 

  133. // CHECK:STDOUT:   %impl.elem0.loc10_20.3: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    134. 

  134. // CHECK:STDOUT:   %bound_method.loc10_20.5: <bound method> = bound_method %int_3, %impl.elem0.loc10_20.3 [concrete = constants.%Convert.bound.b30]
    135. 

  135. // CHECK:STDOUT:   %specific_fn.loc10_20.3: <specific function> = specific_function %impl.elem0.loc10_20.3, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    136. 

  136. // CHECK:STDOUT:   %bound_method.loc10_20.6: <bound method> = bound_method %int_3, %specific_fn.loc10_20.3 [concrete = constants.%bound_method.047]
    137. 

  137. // CHECK:STDOUT:   %int.convert_checked.loc10_20.3: init %i32 = call %bound_method.loc10_20.6(%int_3) [concrete = constants.%int_3.822]
    138. 

  138. // CHECK:STDOUT:   %.loc10_20.9: init %i32 = converted %int_3, %int.convert_checked.loc10_20.3 [concrete = constants.%int_3.822]
    139. 

  139. // CHECK:STDOUT:   %int_2.loc10_20: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
    140. 

  140. // CHECK:STDOUT:   %.loc10_20.10: ref %i32 = array_index %.loc10_20.3, %int_2.loc10_20
    141. 

  141. // CHECK:STDOUT:   %.loc10_20.11: init %i32 = initialize_from %.loc10_20.9 to %.loc10_20.10 [concrete = constants.%int_3.822]
    142. 

  142. // CHECK:STDOUT:   %.loc10_20.12: init %array_type = array_init (%.loc10_20.5, %.loc10_20.8, %.loc10_20.11) to %.loc10_20.3 [concrete = constants.%array]
    143. 

  143. // CHECK:STDOUT:   %.loc10_20.13: init %array_type = converted %.loc10_20.1, %.loc10_20.12 [concrete = constants.%array]
    144. 

  144. // CHECK:STDOUT:   %.loc10_20.14: ref %array_type = temporary %.loc10_20.3, %.loc10_20.13
    145. 

  145. // CHECK:STDOUT:   %.loc10_20.15: %array_type = bind_value %.loc10_20.14
    146. 

  146. // CHECK:STDOUT:   %impl.elem0.loc10_23: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    147. 

  147. // CHECK:STDOUT:   %bound_method.loc10_23.1: <bound method> = bound_method %int_1.loc10_23, %impl.elem0.loc10_23 [concrete = constants.%Convert.bound.ab5]
    148. 

  148. // CHECK:STDOUT:   %specific_fn.loc10_23: <specific function> = specific_function %impl.elem0.loc10_23, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    149. 

  149. // CHECK:STDOUT:   %bound_method.loc10_23.2: <bound method> = bound_method %int_1.loc10_23, %specific_fn.loc10_23 [concrete = constants.%bound_method.9a1]
    150. 

  150. // CHECK:STDOUT:   %int.convert_checked.loc10_23: init %i32 = call %bound_method.loc10_23.2(%int_1.loc10_23) [concrete = constants.%int_1.5d2]
    151. 

  151. // CHECK:STDOUT:   %.loc10_23.1: %i32 = value_of_initializer %int.convert_checked.loc10_23 [concrete = constants.%int_1.5d2]
    152. 

  152. // CHECK:STDOUT:   %.loc10_23.2: %i32 = converted %int_1.loc10_23, %.loc10_23.1 [concrete = constants.%int_1.5d2]
    153. 

  153. // CHECK:STDOUT:   %F.call: init %i32 = call %F.ref(%.loc10_20.15, %.loc10_23.2)
    154. 

  154. // CHECK:STDOUT:   %.loc10_25.1: %i32 = value_of_initializer %F.call
    155. 

  155. // CHECK:STDOUT:   %.loc10_25.2: %i32 = converted %F.call, %.loc10_25.1
    156. 

  156. // CHECK:STDOUT:   %Op.bound: <bound method> = bound_method %.loc10_20.3, constants.%Op.f0b
    157. 

  157. // CHECK:STDOUT:   <elided>
    158. 

  158. // CHECK:STDOUT:   %bound_method.loc10_20.7: <bound method> = bound_method %.loc10_20.3, %Op.specific_fn
    159. 

  159. // CHECK:STDOUT:   %addr: %ptr.f01 = addr_of %.loc10_20.3
    160. 

  160. // CHECK:STDOUT:   %no_op: init %empty_tuple.type = call %bound_method.loc10_20.7(%addr)
    161. 

  161. // CHECK:STDOUT:   return %.loc10_25.2
    162. 

  162. // CHECK:STDOUT: }
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: --- index_non_literal.carbon
    165. 

  165. // CHECK:STDOUT:
    166. 

  166. // CHECK:STDOUT: constants {
    167. 

  167. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    168. 

  168. // CHECK:STDOUT:   %int_3: Core.IntLiteral = int_value 3 [concrete]
    169. 

  169. // CHECK:STDOUT:   %array_type: type = array_type %int_3, %empty_struct_type [concrete]
    170. 

  170. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [concrete]
    171. 

  171. // CHECK:STDOUT:   %struct_type.index: type = struct_type {.index: Core.IntLiteral} [concrete]
    172. 

  172. // CHECK:STDOUT:   %struct: %struct_type.index = struct_value (%int_2.ecc) [concrete]
    173. 

  173. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete]
    174. 

  174. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [concrete]
    175. 

  175. // CHECK:STDOUT:   %ImplicitAs.type.205: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [concrete]
    176. 

  176. // CHECK:STDOUT:   %Convert.type.1b6: type = fn_type @Convert.1, @ImplicitAs(%i32) [concrete]
    177. 

  177. // CHECK:STDOUT:   %To: Core.IntLiteral = bind_symbolic_name To, 0 [symbolic]
    178. 

  178. // CHECK:STDOUT:   %Convert.type.0f9: type = fn_type @Convert.2, @ImplicitAs.impl.4f9(%To) [symbolic]
    179. 

  179. // CHECK:STDOUT:   %Convert.f06: %Convert.type.0f9 = struct_value () [symbolic]
    180. 

  180. // CHECK:STDOUT:   %ImplicitAs.impl_witness.c75: <witness> = impl_witness imports.%ImplicitAs.impl_witness_table.a2f, @ImplicitAs.impl.4f9(%int_32) [concrete]
    181. 

  181. // CHECK:STDOUT:   %Convert.type.035: type = fn_type @Convert.2, @ImplicitAs.impl.4f9(%int_32) [concrete]
    182. 

  182. // CHECK:STDOUT:   %Convert.956: %Convert.type.035 = struct_value () [concrete]
    183. 

  183. // CHECK:STDOUT:   %ImplicitAs.facet: %ImplicitAs.type.205 = facet_value Core.IntLiteral, (%ImplicitAs.impl_witness.c75) [concrete]
    184. 

  184. // CHECK:STDOUT:   %.9c3: type = fn_type_with_self_type %Convert.type.1b6, %ImplicitAs.facet [concrete]
    185. 

  185. // CHECK:STDOUT:   %Convert.bound: <bound method> = bound_method %int_2.ecc, %Convert.956 [concrete]
    186. 

  186. // CHECK:STDOUT:   %Convert.specific_fn: <specific function> = specific_function %Convert.956, @Convert.2(%int_32) [concrete]
    187. 

  187. // CHECK:STDOUT:   %bound_method: <bound method> = bound_method %int_2.ecc, %Convert.specific_fn [concrete]
    188. 

  188. // CHECK:STDOUT:   %int_2.ef8: %i32 = int_value 2 [concrete]
    189. 

  189. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    190. 

  190. // CHECK:STDOUT: }
    191. 

  191. // CHECK:STDOUT:
    192. 

  192. // CHECK:STDOUT: imports {
    193. 

  193. // CHECK:STDOUT:   %Core.import_ref.a5b: @ImplicitAs.impl.4f9.%Convert.type (%Convert.type.0f9) = import_ref Core//prelude/parts/int, loc16_39, loaded [symbolic = @ImplicitAs.impl.4f9.%Convert (constants.%Convert.f06)]
    194. 

  194. // CHECK:STDOUT:   %ImplicitAs.impl_witness_table.a2f = impl_witness_table (%Core.import_ref.a5b), @ImplicitAs.impl.4f9 [concrete]
    195. 

  195. // CHECK:STDOUT: }
    196. 

  196. // CHECK:STDOUT:
    197. 

  197. // CHECK:STDOUT: fn @F(%a.param: %array_type) -> %empty_struct_type {
    198. 

  198. // CHECK:STDOUT: !entry:
    199. 

  199. // CHECK:STDOUT:   %a.ref: %array_type = name_ref a, %a
    200. 

  200. // CHECK:STDOUT:   %int_2: Core.IntLiteral = int_value 2 [concrete = constants.%int_2.ecc]
    201. 

  201. // CHECK:STDOUT:   %.loc6_23.1: %struct_type.index = struct_literal (%int_2)
    202. 

  202. // CHECK:STDOUT:   %struct: %struct_type.index = struct_value (%int_2) [concrete = constants.%struct]
    203. 

  203. // CHECK:STDOUT:   %.loc6_23.2: %struct_type.index = converted %.loc6_23.1, %struct [concrete = constants.%struct]
    204. 

  204. // CHECK:STDOUT:   %.loc6_24.1: Core.IntLiteral = struct_access %.loc6_23.2, element0 [concrete = constants.%int_2.ecc]
    205. 

  205. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [concrete = constants.%int_32]
    206. 

  206. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(constants.%int_32) [concrete = constants.%i32]
    207. 

  207. // CHECK:STDOUT:   %impl.elem0: %.9c3 = impl_witness_access constants.%ImplicitAs.impl_witness.c75, element0 [concrete = constants.%Convert.956]
    208. 

  208. // CHECK:STDOUT:   %bound_method.loc6_24.1: <bound method> = bound_method %.loc6_24.1, %impl.elem0 [concrete = constants.%Convert.bound]
    209. 

  209. // CHECK:STDOUT:   %specific_fn: <specific function> = specific_function %impl.elem0, @Convert.2(constants.%int_32) [concrete = constants.%Convert.specific_fn]
    210. 

  210. // CHECK:STDOUT:   %bound_method.loc6_24.2: <bound method> = bound_method %.loc6_24.1, %specific_fn [concrete = constants.%bound_method]
    211. 

  211. // CHECK:STDOUT:   %int.convert_checked: init %i32 = call %bound_method.loc6_24.2(%.loc6_24.1) [concrete = constants.%int_2.ef8]
    212. 

  212. // CHECK:STDOUT:   %.loc6_24.2: %i32 = value_of_initializer %int.convert_checked [concrete = constants.%int_2.ef8]
    213. 

  213. // CHECK:STDOUT:   %.loc6_24.3: %i32 = converted %.loc6_24.1, %.loc6_24.2 [concrete = constants.%int_2.ef8]
    214. 

  214. // CHECK:STDOUT:   %.loc6_30.1: ref %array_type = value_as_ref %a.ref
    215. 

  215. // CHECK:STDOUT:   %.loc6_30.2: ref %empty_struct_type = array_index %.loc6_30.1, %.loc6_24.3
    216. 

  216. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    217. 

  217. // CHECK:STDOUT:   %.loc6_30.3: %empty_struct_type = converted %.loc6_30.2, %empty_struct [concrete = constants.%empty_struct]
    218. 

  218. // CHECK:STDOUT:   return %.loc6_30.3
    219. 

  219. // CHECK:STDOUT: }
    220. 

  220. // CHECK:STDOUT:
    221.