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tuple
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tuple_pattern.carbon

tuple_pattern.carbon 33 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/destroy.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/tuple/tuple_pattern.carbon
    10. 

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

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

  12. 

  13. 

  14. // --- basic.carbon
    15. 

  15. 

  16. library "[[@TEST_NAME]]";
    17. 

  17. 

  18. fn F(v: ({}, {})) {
    19. 

  19.   //@dump-sem-ir-begin
    20. 

  20.   let (unused x: {}, unused y: {}) = ({}, {});
    21. 

  21.   var (unused a: {}, unused b: {}) = v;
    22. 

  22.   var (unused c: {}, unused d: {}) = ({}, {});
    23. 

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

  24. }
    25. 

  25. 

  26. // --- variable.carbon
    27. 

  27. 

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

  29. 

  30. fn F() {
    31. 

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

  32.   var tuple: ({}, {}) = ({}, {});
    33. 

  33.   var (unused x: {}, unused y: {}) = tuple;
    34. 

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

  35. }
    36. 

  36. 

  37. fn G() {
    38. 

  38.   //@dump-sem-ir-begin
    39. 

  39.   let tuple: ({}, {}) = ({}, {});
    40. 

  40.   var (unused x: {}, unused y: {}) = tuple;
    41. 

  41.   //@dump-sem-ir-end
    42. 

  42. }
    43. 

  43. 

  44. fn MakeTuple() -> ({}, {});
    45. 

  45. 

  46. fn H() {
    47. 

  47.   //@dump-sem-ir-begin
    48. 

  48.   var (unused x: {}, unused y: {}) = MakeTuple();
    49. 

  49.   //@dump-sem-ir-end
    50. 

  50. }
    51. 

  51. 

  52. // --- nested.carbon
    53. 

  53. 

  54. library "[[@TEST_NAME]]";
    55. 

  55. 

  56. fn F() {
    57. 

  57.   //@dump-sem-ir-begin
    58. 

  58.   let (unused x: {}, (unused y: {}, unused z: {})) = ({}, ({}, {}));
    59. 

  59.   //@dump-sem-ir-end
    60. 

  60. }
    61. 

  61. 

  62. // --- package_scope.carbon
    63. 

  63. 

  64. library "[[@TEST_NAME]]";
    65. 

  65. 

  66. //@dump-sem-ir-begin
    67. 

  67. let (x: {}, y: {}) = ({}, {});
    68. 

  68. //@dump-sem-ir-end
    69. 

  69. 

  70. // --- fail_in_class.carbon
    71. 

  71. 

  72. library "[[@TEST_NAME]]";
    73. 

  73. 

  74. class C {
    75. 

  75.   // CHECK:STDERR: fail_in_class.carbon:[[@LINE+8]]:7: error: expected identifier in field declaration [ExpectedFieldIdentifier]
    76. 

  76.   // CHECK:STDERR:   var (x: {}, y: {});
    77. 

  77.   // CHECK:STDERR:       ^
    78. 

  78.   // CHECK:STDERR:
    79. 

  79.   // CHECK:STDERR: fail_in_class.carbon:[[@LINE+4]]:3: error: semantics TODO: `handle invalid parse trees in `check`` [SemanticsTodo]
    80. 

  80.   // CHECK:STDERR:   var (x: {}, y: {});
    81. 

  81.   // CHECK:STDERR:   ^~~~~~~~~~~~~~~~~~~
    82. 

  82.   // CHECK:STDERR:
    83. 

  83.   var (x: {}, y: {});
    84. 

  84. }
    85. 

  85. 

  86. // --- fail_initializer_mismatch.carbon
    87. 

  87. 

  88. library "[[@TEST_NAME]]";
    89. 

  89. 

  90. // CHECK:STDERR: fail_initializer_mismatch.carbon:[[@LINE+4]]:5: error: tuple pattern expects 2 elements, but tuple literal has 1 [TuplePatternSizeDoesntMatchLiteral]
    91. 

  91. // CHECK:STDERR: let (x: {}, y: {}) = ({},);
    92. 

  92. // CHECK:STDERR:     ^~~~~~~~~~~~~~
    93. 

  93. // CHECK:STDERR:
    94. 

  94. let (x: {}, y: {}) = ({},);
    95. 

  95. 

  96. // CHECK:STDERR: fail_initializer_mismatch.carbon:[[@LINE+4]]:5: error: tuple pattern expects 2 elements, but tuple literal has 3 [TuplePatternSizeDoesntMatchLiteral]
    97. 

  97. // CHECK:STDERR: let (a: {}, b: {}) = ({}, {}, {});
    98. 

  98. // CHECK:STDERR:     ^~~~~~~~~~~~~~
    99. 

  99. // CHECK:STDERR:
    100. 

  100. let (a: {}, b: {}) = ({}, {}, {});
    101. 

  101. 

  102. // CHECK:STDOUT: --- basic.carbon
    103. 

  103. // CHECK:STDOUT:
    104. 

  104. // CHECK:STDOUT: constants {
    105. 

  105. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    106. 

  106. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    107. 

  107. // CHECK:STDOUT:   %tuple.type.b6b: type = tuple_type (%empty_struct_type, %empty_struct_type) [concrete]
    108. 

  108. // CHECK:STDOUT:   %tuple: %tuple.type.b6b = tuple_value (%empty_struct, %empty_struct) [concrete]
    109. 

  109. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    110. 

  110. // CHECK:STDOUT:   %pattern_type.de4: type = pattern_type %tuple.type.b6b [concrete]
    111. 

  111. // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
    112. 

  112. // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
    113. 

  113. // CHECK:STDOUT:   %Destroy.Op: %Destroy.Op.type = struct_value () [concrete]
    114. 

  114. // CHECK:STDOUT: }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: fn @F(%v.param: %tuple.type.b6b) {
    117. 

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

  118. // CHECK:STDOUT:   name_binding_decl {
    119. 

  119. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = value_binding_pattern x [concrete]
    120. 

  120. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = value_binding_pattern y [concrete]
    121. 

  121. // CHECK:STDOUT:     %.loc6_34: %pattern_type.de4 = tuple_pattern (%x.patt, %y.patt) [concrete]
    122. 

  122. // CHECK:STDOUT:   }
    123. 

  123. // CHECK:STDOUT:   %.loc6_40.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    124. 

  124. // CHECK:STDOUT:   %.loc6_44.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    125. 

  125. // CHECK:STDOUT:   %.loc6_45: %tuple.type.b6b = tuple_literal (%.loc6_40.1, %.loc6_44.1) [concrete = constants.%tuple]
    126. 

  126. // CHECK:STDOUT:   %.loc6_19.1: type = splice_block %.loc6_19.3 [concrete = constants.%empty_struct_type] {
    127. 

  127. // CHECK:STDOUT:     %.loc6_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    128. 

  128. // CHECK:STDOUT:     %.loc6_19.3: type = converted %.loc6_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    129. 

  129. // CHECK:STDOUT:   }
    130. 

  130. // CHECK:STDOUT:   %empty_struct.loc6_40: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    131. 

  131. // CHECK:STDOUT:   %.loc6_40.2: %empty_struct_type = converted %.loc6_40.1, %empty_struct.loc6_40 [concrete = constants.%empty_struct]
    132. 

  132. // CHECK:STDOUT:   %x: %empty_struct_type = value_binding x, %.loc6_40.2
    133. 

  133. // CHECK:STDOUT:   %.loc6_33.1: type = splice_block %.loc6_33.3 [concrete = constants.%empty_struct_type] {
    134. 

  134. // CHECK:STDOUT:     %.loc6_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    135. 

  135. // CHECK:STDOUT:     %.loc6_33.3: type = converted %.loc6_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    136. 

  136. // CHECK:STDOUT:   }
    137. 

  137. // CHECK:STDOUT:   %empty_struct.loc6_44: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    138. 

  138. // CHECK:STDOUT:   %.loc6_44.2: %empty_struct_type = converted %.loc6_44.1, %empty_struct.loc6_44 [concrete = constants.%empty_struct]
    139. 

  139. // CHECK:STDOUT:   %y: %empty_struct_type = value_binding y, %.loc6_44.2
    140. 

  140. // CHECK:STDOUT:   name_binding_decl {
    141. 

  141. // CHECK:STDOUT:     %a.patt: %pattern_type.a96 = ref_binding_pattern a [concrete]
    142. 

  142. // CHECK:STDOUT:     %b.patt: %pattern_type.a96 = ref_binding_pattern b [concrete]
    143. 

  143. // CHECK:STDOUT:     %.loc7_34: %pattern_type.de4 = tuple_pattern (%a.patt, %b.patt) [concrete]
    144. 

  144. // CHECK:STDOUT:     %.var_patt.loc7: %pattern_type.de4 = var_pattern %.loc7_34 [concrete]
    145. 

  145. // CHECK:STDOUT:   }
    146. 

  146. // CHECK:STDOUT:   %.var.loc7: ref %tuple.type.b6b = var %.var_patt.loc7
    147. 

  147. // CHECK:STDOUT:   %v.ref: %tuple.type.b6b = name_ref v, %v
    148. 

  148. // CHECK:STDOUT:   %tuple.elem0.loc7_38.1: %empty_struct_type = tuple_access %v.ref, element0
    149. 

  149. // CHECK:STDOUT:   %tuple.elem0.loc7_38.2: ref %empty_struct_type = tuple_access %.var.loc7, element0
    150. 

  150. // CHECK:STDOUT:   %.loc7_38.1: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    151. 

  151. // CHECK:STDOUT:   %.loc7_38.2: init %empty_struct_type = converted %tuple.elem0.loc7_38.1, %.loc7_38.1 [concrete = constants.%empty_struct]
    152. 

  152. // CHECK:STDOUT:   %tuple.elem1.loc7_38.1: %empty_struct_type = tuple_access %v.ref, element1
    153. 

  153. // CHECK:STDOUT:   %tuple.elem1.loc7_38.2: ref %empty_struct_type = tuple_access %.var.loc7, element1
    154. 

  154. // CHECK:STDOUT:   %.loc7_38.3: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    155. 

  155. // CHECK:STDOUT:   %.loc7_38.4: init %empty_struct_type = converted %tuple.elem1.loc7_38.1, %.loc7_38.3 [concrete = constants.%empty_struct]
    156. 

  156. // CHECK:STDOUT:   %.loc7_38.5: init %tuple.type.b6b to %.var.loc7 = tuple_init (%.loc7_38.2, %.loc7_38.4) [concrete = constants.%tuple]
    157. 

  157. // CHECK:STDOUT:   %.loc7_3: init %tuple.type.b6b = converted %v.ref, %.loc7_38.5 [concrete = constants.%tuple]
    158. 

  158. // CHECK:STDOUT:   assign %.var.loc7, %.loc7_3
    159. 

  159. // CHECK:STDOUT:   %tuple.elem0.loc7_3: ref %empty_struct_type = tuple_access %.var.loc7, element0
    160. 

  160. // CHECK:STDOUT:   %tuple.elem1.loc7_3: ref %empty_struct_type = tuple_access %.var.loc7, element1
    161. 

  161. // CHECK:STDOUT:   %.loc7_19.1: type = splice_block %.loc7_19.3 [concrete = constants.%empty_struct_type] {
    162. 

  162. // CHECK:STDOUT:     %.loc7_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    163. 

  163. // CHECK:STDOUT:     %.loc7_19.3: type = converted %.loc7_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    164. 

  164. // CHECK:STDOUT:   }
    165. 

  165. // CHECK:STDOUT:   %a: ref %empty_struct_type = ref_binding a, %tuple.elem0.loc7_3
    166. 

  166. // CHECK:STDOUT:   %.loc7_33.1: type = splice_block %.loc7_33.3 [concrete = constants.%empty_struct_type] {
    167. 

  167. // CHECK:STDOUT:     %.loc7_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    168. 

  168. // CHECK:STDOUT:     %.loc7_33.3: type = converted %.loc7_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    169. 

  169. // CHECK:STDOUT:   }
    170. 

  170. // CHECK:STDOUT:   %b: ref %empty_struct_type = ref_binding b, %tuple.elem1.loc7_3
    171. 

  171. // CHECK:STDOUT:   name_binding_decl {
    172. 

  172. // CHECK:STDOUT:     %c.patt: %pattern_type.a96 = ref_binding_pattern c [concrete]
    173. 

  173. // CHECK:STDOUT:     %d.patt: %pattern_type.a96 = ref_binding_pattern d [concrete]
    174. 

  174. // CHECK:STDOUT:     %.loc8_34: %pattern_type.de4 = tuple_pattern (%c.patt, %d.patt) [concrete]
    175. 

  175. // CHECK:STDOUT:     %.var_patt.loc8: %pattern_type.de4 = var_pattern %.loc8_34 [concrete]
    176. 

  176. // CHECK:STDOUT:   }
    177. 

  177. // CHECK:STDOUT:   %.var.loc8: ref %tuple.type.b6b = var %.var_patt.loc8
    178. 

  178. // CHECK:STDOUT:   %.loc8_40.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    179. 

  179. // CHECK:STDOUT:   %.loc8_44.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    180. 

  180. // CHECK:STDOUT:   %.loc8_45.1: %tuple.type.b6b = tuple_literal (%.loc8_40.1, %.loc8_44.1) [concrete = constants.%tuple]
    181. 

  181. // CHECK:STDOUT:   %tuple.elem0.loc8_45: ref %empty_struct_type = tuple_access %.var.loc8, element0
    182. 

  182. // CHECK:STDOUT:   %.loc8_40.2: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    183. 

  183. // CHECK:STDOUT:   %.loc8_45.2: init %empty_struct_type = converted %.loc8_40.1, %.loc8_40.2 [concrete = constants.%empty_struct]
    184. 

  184. // CHECK:STDOUT:   %tuple.elem1.loc8_45: ref %empty_struct_type = tuple_access %.var.loc8, element1
    185. 

  185. // CHECK:STDOUT:   %.loc8_44.2: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    186. 

  186. // CHECK:STDOUT:   %.loc8_45.3: init %empty_struct_type = converted %.loc8_44.1, %.loc8_44.2 [concrete = constants.%empty_struct]
    187. 

  187. // CHECK:STDOUT:   %.loc8_45.4: init %tuple.type.b6b to %.var.loc8 = tuple_init (%.loc8_45.2, %.loc8_45.3) [concrete = constants.%tuple]
    188. 

  188. // CHECK:STDOUT:   %.loc8_3: init %tuple.type.b6b = converted %.loc8_45.1, %.loc8_45.4 [concrete = constants.%tuple]
    189. 

  189. // CHECK:STDOUT:   assign %.var.loc8, %.loc8_3
    190. 

  190. // CHECK:STDOUT:   %tuple.elem0.loc8_3: ref %empty_struct_type = tuple_access %.var.loc8, element0
    191. 

  191. // CHECK:STDOUT:   %tuple.elem1.loc8_3: ref %empty_struct_type = tuple_access %.var.loc8, element1
    192. 

  192. // CHECK:STDOUT:   %.loc8_19.1: type = splice_block %.loc8_19.3 [concrete = constants.%empty_struct_type] {
    193. 

  193. // CHECK:STDOUT:     %.loc8_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    194. 

  194. // CHECK:STDOUT:     %.loc8_19.3: type = converted %.loc8_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    195. 

  195. // CHECK:STDOUT:   }
    196. 

  196. // CHECK:STDOUT:   %c: ref %empty_struct_type = ref_binding c, %tuple.elem0.loc8_3
    197. 

  197. // CHECK:STDOUT:   %.loc8_33.1: type = splice_block %.loc8_33.3 [concrete = constants.%empty_struct_type] {
    198. 

  198. // CHECK:STDOUT:     %.loc8_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    199. 

  199. // CHECK:STDOUT:     %.loc8_33.3: type = converted %.loc8_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    200. 

  200. // CHECK:STDOUT:   }
    201. 

  201. // CHECK:STDOUT:   %d: ref %empty_struct_type = ref_binding d, %tuple.elem1.loc8_3
    202. 

  202. // CHECK:STDOUT:   %Destroy.Op.bound.loc8: <bound method> = bound_method %.var.loc8, constants.%Destroy.Op
    203. 

  203. // CHECK:STDOUT:   %Destroy.Op.call.loc8: init %empty_tuple.type = call %Destroy.Op.bound.loc8(%.var.loc8)
    204. 

  204. // CHECK:STDOUT:   %Destroy.Op.bound.loc7: <bound method> = bound_method %.var.loc7, constants.%Destroy.Op
    205. 

  205. // CHECK:STDOUT:   %Destroy.Op.call.loc7: init %empty_tuple.type = call %Destroy.Op.bound.loc7(%.var.loc7)
    206. 

  206. // CHECK:STDOUT:   <elided>
    207. 

  207. // CHECK:STDOUT: }
    208. 

  208. // CHECK:STDOUT:
    209. 

  209. // CHECK:STDOUT: fn @Destroy.Op(%self.param: ref %tuple.type.b6b) = "no_op";
    210. 

  210. // CHECK:STDOUT:
    211. 

  211. // CHECK:STDOUT: --- variable.carbon
    212. 

  212. // CHECK:STDOUT:
    213. 

  213. // CHECK:STDOUT: constants {
    214. 

  214. // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [concrete]
    215. 

  215. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    216. 

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

  217. // CHECK:STDOUT:   %tuple.type.b6b: type = tuple_type (%empty_struct_type, %empty_struct_type) [concrete]
    218. 

  218. // CHECK:STDOUT:   %tuple: %tuple.type.b6b = tuple_value (%empty_struct, %empty_struct) [concrete]
    219. 

  219. // CHECK:STDOUT:   %pattern_type.de4: type = pattern_type %tuple.type.b6b [concrete]
    220. 

  220. // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
    221. 

  221. // CHECK:STDOUT:   %Destroy.Op.type: type = fn_type @Destroy.Op [concrete]
    222. 

  222. // CHECK:STDOUT:   %Destroy.Op: %Destroy.Op.type = struct_value () [concrete]
    223. 

  223. // CHECK:STDOUT:   %MakeTuple.type: type = fn_type @MakeTuple [concrete]
    224. 

  224. // CHECK:STDOUT:   %MakeTuple: %MakeTuple.type = struct_value () [concrete]
    225. 

  225. // CHECK:STDOUT: }
    226. 

  226. // CHECK:STDOUT:
    227. 

  227. // CHECK:STDOUT: fn @F() {
    228. 

  228. // CHECK:STDOUT: !entry:
    229. 

  229. // CHECK:STDOUT:   name_binding_decl {
    230. 

  230. // CHECK:STDOUT:     %tuple.patt: %pattern_type.de4 = ref_binding_pattern tuple [concrete]
    231. 

  231. // CHECK:STDOUT:     %tuple.var_patt: %pattern_type.de4 = var_pattern %tuple.patt [concrete]
    232. 

  232. // CHECK:STDOUT:   }
    233. 

  233. // CHECK:STDOUT:   %tuple.var: ref %tuple.type.b6b = var %tuple.var_patt
    234. 

  234. // CHECK:STDOUT:   %.loc6_27.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    235. 

  235. // CHECK:STDOUT:   %.loc6_31.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    236. 

  236. // CHECK:STDOUT:   %.loc6_32.1: %tuple.type.b6b = tuple_literal (%.loc6_27.1, %.loc6_31.1) [concrete = constants.%tuple]
    237. 

  237. // CHECK:STDOUT:   %tuple.elem0.loc6: ref %empty_struct_type = tuple_access %tuple.var, element0
    238. 

  238. // CHECK:STDOUT:   %.loc6_27.2: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    239. 

  239. // CHECK:STDOUT:   %.loc6_32.2: init %empty_struct_type = converted %.loc6_27.1, %.loc6_27.2 [concrete = constants.%empty_struct]
    240. 

  240. // CHECK:STDOUT:   %tuple.elem1.loc6: ref %empty_struct_type = tuple_access %tuple.var, element1
    241. 

  241. // CHECK:STDOUT:   %.loc6_31.2: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    242. 

  242. // CHECK:STDOUT:   %.loc6_32.3: init %empty_struct_type = converted %.loc6_31.1, %.loc6_31.2 [concrete = constants.%empty_struct]
    243. 

  243. // CHECK:STDOUT:   %.loc6_32.4: init %tuple.type.b6b to %tuple.var = tuple_init (%.loc6_32.2, %.loc6_32.3) [concrete = constants.%tuple]
    244. 

  244. // CHECK:STDOUT:   %.loc6_3: init %tuple.type.b6b = converted %.loc6_32.1, %.loc6_32.4 [concrete = constants.%tuple]
    245. 

  245. // CHECK:STDOUT:   assign %tuple.var, %.loc6_3
    246. 

  246. // CHECK:STDOUT:   %.loc6_21.1: type = splice_block %.loc6_21.5 [concrete = constants.%tuple.type.b6b] {
    247. 

  247. // CHECK:STDOUT:     %.loc6_16: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    248. 

  248. // CHECK:STDOUT:     %.loc6_20: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    249. 

  249. // CHECK:STDOUT:     %.loc6_21.2: %tuple.type.b6b = tuple_literal (%.loc6_16, %.loc6_20) [concrete = constants.%tuple]
    250. 

  250. // CHECK:STDOUT:     %.loc6_21.3: type = converted constants.%empty_struct, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    251. 

  251. // CHECK:STDOUT:     %.loc6_21.4: type = converted constants.%empty_struct, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    252. 

  252. // CHECK:STDOUT:     %.loc6_21.5: type = converted %.loc6_21.2, constants.%tuple.type.b6b [concrete = constants.%tuple.type.b6b]
    253. 

  253. // CHECK:STDOUT:   }
    254. 

  254. // CHECK:STDOUT:   %tuple: ref %tuple.type.b6b = ref_binding tuple, %tuple.var
    255. 

  255. // CHECK:STDOUT:   name_binding_decl {
    256. 

  256. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = ref_binding_pattern x [concrete]
    257. 

  257. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = ref_binding_pattern y [concrete]
    258. 

  258. // CHECK:STDOUT:     %.loc7_34: %pattern_type.de4 = tuple_pattern (%x.patt, %y.patt) [concrete]
    259. 

  259. // CHECK:STDOUT:     %.var_patt: %pattern_type.de4 = var_pattern %.loc7_34 [concrete]
    260. 

  260. // CHECK:STDOUT:   }
    261. 

  261. // CHECK:STDOUT:   %.var: ref %tuple.type.b6b = var %.var_patt
    262. 

  262. // CHECK:STDOUT:   %tuple.ref: ref %tuple.type.b6b = name_ref tuple, %tuple
    263. 

  263. // CHECK:STDOUT:   %tuple.elem0.loc7_38.1: ref %empty_struct_type = tuple_access %tuple.ref, element0
    264. 

  264. // CHECK:STDOUT:   %tuple.elem0.loc7_38.2: ref %empty_struct_type = tuple_access %.var, element0
    265. 

  265. // CHECK:STDOUT:   %.loc7_38.1: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    266. 

  266. // CHECK:STDOUT:   %.loc7_38.2: init %empty_struct_type = converted %tuple.elem0.loc7_38.1, %.loc7_38.1 [concrete = constants.%empty_struct]
    267. 

  267. // CHECK:STDOUT:   %tuple.elem1.loc7_38.1: ref %empty_struct_type = tuple_access %tuple.ref, element1
    268. 

  268. // CHECK:STDOUT:   %tuple.elem1.loc7_38.2: ref %empty_struct_type = tuple_access %.var, element1
    269. 

  269. // CHECK:STDOUT:   %.loc7_38.3: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    270. 

  270. // CHECK:STDOUT:   %.loc7_38.4: init %empty_struct_type = converted %tuple.elem1.loc7_38.1, %.loc7_38.3 [concrete = constants.%empty_struct]
    271. 

  271. // CHECK:STDOUT:   %.loc7_38.5: init %tuple.type.b6b to %.var = tuple_init (%.loc7_38.2, %.loc7_38.4) [concrete = constants.%tuple]
    272. 

  272. // CHECK:STDOUT:   %.loc7_3: init %tuple.type.b6b = converted %tuple.ref, %.loc7_38.5 [concrete = constants.%tuple]
    273. 

  273. // CHECK:STDOUT:   assign %.var, %.loc7_3
    274. 

  274. // CHECK:STDOUT:   %tuple.elem0.loc7_3: ref %empty_struct_type = tuple_access %.var, element0
    275. 

  275. // CHECK:STDOUT:   %tuple.elem1.loc7_3: ref %empty_struct_type = tuple_access %.var, element1
    276. 

  276. // CHECK:STDOUT:   %.loc7_19.1: type = splice_block %.loc7_19.3 [concrete = constants.%empty_struct_type] {
    277. 

  277. // CHECK:STDOUT:     %.loc7_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    278. 

  278. // CHECK:STDOUT:     %.loc7_19.3: type = converted %.loc7_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    279. 

  279. // CHECK:STDOUT:   }
    280. 

  280. // CHECK:STDOUT:   %x: ref %empty_struct_type = ref_binding x, %tuple.elem0.loc7_3
    281. 

  281. // CHECK:STDOUT:   %.loc7_33.1: type = splice_block %.loc7_33.3 [concrete = constants.%empty_struct_type] {
    282. 

  282. // CHECK:STDOUT:     %.loc7_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    283. 

  283. // CHECK:STDOUT:     %.loc7_33.3: type = converted %.loc7_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    284. 

  284. // CHECK:STDOUT:   }
    285. 

  285. // CHECK:STDOUT:   %y: ref %empty_struct_type = ref_binding y, %tuple.elem1.loc7_3
    286. 

  286. // CHECK:STDOUT:   %Destroy.Op.bound.loc7: <bound method> = bound_method %.var, constants.%Destroy.Op
    287. 

  287. // CHECK:STDOUT:   %Destroy.Op.call.loc7: init %empty_tuple.type = call %Destroy.Op.bound.loc7(%.var)
    288. 

  288. // CHECK:STDOUT:   %Destroy.Op.bound.loc6: <bound method> = bound_method %tuple.var, constants.%Destroy.Op
    289. 

  289. // CHECK:STDOUT:   %Destroy.Op.call.loc6: init %empty_tuple.type = call %Destroy.Op.bound.loc6(%tuple.var)
    290. 

  290. // CHECK:STDOUT:   <elided>
    291. 

  291. // CHECK:STDOUT: }
    292. 

  292. // CHECK:STDOUT:
    293. 

  293. // CHECK:STDOUT: fn @Destroy.Op(%self.param: ref %tuple.type.b6b) = "no_op";
    294. 

  294. // CHECK:STDOUT:
    295. 

  295. // CHECK:STDOUT: fn @G() {
    296. 

  296. // CHECK:STDOUT: !entry:
    297. 

  297. // CHECK:STDOUT:   name_binding_decl {
    298. 

  298. // CHECK:STDOUT:     %tuple.patt: %pattern_type.de4 = value_binding_pattern tuple [concrete]
    299. 

  299. // CHECK:STDOUT:   }
    300. 

  300. // CHECK:STDOUT:   %.loc13_27: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    301. 

  301. // CHECK:STDOUT:   %.loc13_31: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    302. 

  302. // CHECK:STDOUT:   %.loc13_32.1: %tuple.type.b6b = tuple_literal (%.loc13_27, %.loc13_31) [concrete = constants.%tuple]
    303. 

  303. // CHECK:STDOUT:   %.loc13_21.1: type = splice_block %.loc13_21.5 [concrete = constants.%tuple.type.b6b] {
    304. 

  304. // CHECK:STDOUT:     %.loc13_16: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    305. 

  305. // CHECK:STDOUT:     %.loc13_20: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    306. 

  306. // CHECK:STDOUT:     %.loc13_21.2: %tuple.type.b6b = tuple_literal (%.loc13_16, %.loc13_20) [concrete = constants.%tuple]
    307. 

  307. // CHECK:STDOUT:     %.loc13_21.3: type = converted constants.%empty_struct, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    308. 

  308. // CHECK:STDOUT:     %.loc13_21.4: type = converted constants.%empty_struct, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    309. 

  309. // CHECK:STDOUT:     %.loc13_21.5: type = converted %.loc13_21.2, constants.%tuple.type.b6b [concrete = constants.%tuple.type.b6b]
    310. 

  310. // CHECK:STDOUT:   }
    311. 

  311. // CHECK:STDOUT:   %empty_struct.loc13_27: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    312. 

  312. // CHECK:STDOUT:   %.loc13_32.2: %empty_struct_type = converted %.loc13_27, %empty_struct.loc13_27 [concrete = constants.%empty_struct]
    313. 

  313. // CHECK:STDOUT:   %empty_struct.loc13_31: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    314. 

  314. // CHECK:STDOUT:   %.loc13_32.3: %empty_struct_type = converted %.loc13_31, %empty_struct.loc13_31 [concrete = constants.%empty_struct]
    315. 

  315. // CHECK:STDOUT:   %tuple.loc13_32: %tuple.type.b6b = tuple_value (%.loc13_32.2, %.loc13_32.3) [concrete = constants.%tuple]
    316. 

  316. // CHECK:STDOUT:   %.loc13_32.4: %tuple.type.b6b = converted %.loc13_32.1, %tuple.loc13_32 [concrete = constants.%tuple]
    317. 

  317. // CHECK:STDOUT:   %tuple.loc13_7: %tuple.type.b6b = value_binding tuple, %.loc13_32.4
    318. 

  318. // CHECK:STDOUT:   name_binding_decl {
    319. 

  319. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = ref_binding_pattern x [concrete]
    320. 

  320. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = ref_binding_pattern y [concrete]
    321. 

  321. // CHECK:STDOUT:     %.loc14_34: %pattern_type.de4 = tuple_pattern (%x.patt, %y.patt) [concrete]
    322. 

  322. // CHECK:STDOUT:     %.var_patt: %pattern_type.de4 = var_pattern %.loc14_34 [concrete]
    323. 

  323. // CHECK:STDOUT:   }
    324. 

  324. // CHECK:STDOUT:   %.var: ref %tuple.type.b6b = var %.var_patt
    325. 

  325. // CHECK:STDOUT:   %tuple.ref: %tuple.type.b6b = name_ref tuple, %tuple.loc13_7
    326. 

  326. // CHECK:STDOUT:   %tuple.elem0.loc14_38.1: %empty_struct_type = tuple_access %tuple.ref, element0
    327. 

  327. // CHECK:STDOUT:   %tuple.elem0.loc14_38.2: ref %empty_struct_type = tuple_access %.var, element0
    328. 

  328. // CHECK:STDOUT:   %.loc14_38.1: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    329. 

  329. // CHECK:STDOUT:   %.loc14_38.2: init %empty_struct_type = converted %tuple.elem0.loc14_38.1, %.loc14_38.1 [concrete = constants.%empty_struct]
    330. 

  330. // CHECK:STDOUT:   %tuple.elem1.loc14_38.1: %empty_struct_type = tuple_access %tuple.ref, element1
    331. 

  331. // CHECK:STDOUT:   %tuple.elem1.loc14_38.2: ref %empty_struct_type = tuple_access %.var, element1
    332. 

  332. // CHECK:STDOUT:   %.loc14_38.3: init %empty_struct_type = struct_init () [concrete = constants.%empty_struct]
    333. 

  333. // CHECK:STDOUT:   %.loc14_38.4: init %empty_struct_type = converted %tuple.elem1.loc14_38.1, %.loc14_38.3 [concrete = constants.%empty_struct]
    334. 

  334. // CHECK:STDOUT:   %.loc14_38.5: init %tuple.type.b6b to %.var = tuple_init (%.loc14_38.2, %.loc14_38.4) [concrete = constants.%tuple]
    335. 

  335. // CHECK:STDOUT:   %.loc14_3: init %tuple.type.b6b = converted %tuple.ref, %.loc14_38.5 [concrete = constants.%tuple]
    336. 

  336. // CHECK:STDOUT:   assign %.var, %.loc14_3
    337. 

  337. // CHECK:STDOUT:   %tuple.elem0.loc14_3: ref %empty_struct_type = tuple_access %.var, element0
    338. 

  338. // CHECK:STDOUT:   %tuple.elem1.loc14_3: ref %empty_struct_type = tuple_access %.var, element1
    339. 

  339. // CHECK:STDOUT:   %.loc14_19.1: type = splice_block %.loc14_19.3 [concrete = constants.%empty_struct_type] {
    340. 

  340. // CHECK:STDOUT:     %.loc14_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    341. 

  341. // CHECK:STDOUT:     %.loc14_19.3: type = converted %.loc14_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    342. 

  342. // CHECK:STDOUT:   }
    343. 

  343. // CHECK:STDOUT:   %x: ref %empty_struct_type = ref_binding x, %tuple.elem0.loc14_3
    344. 

  344. // CHECK:STDOUT:   %.loc14_33.1: type = splice_block %.loc14_33.3 [concrete = constants.%empty_struct_type] {
    345. 

  345. // CHECK:STDOUT:     %.loc14_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    346. 

  346. // CHECK:STDOUT:     %.loc14_33.3: type = converted %.loc14_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    347. 

  347. // CHECK:STDOUT:   }
    348. 

  348. // CHECK:STDOUT:   %y: ref %empty_struct_type = ref_binding y, %tuple.elem1.loc14_3
    349. 

  349. // CHECK:STDOUT:   %Destroy.Op.bound: <bound method> = bound_method %.var, constants.%Destroy.Op
    350. 

  350. // CHECK:STDOUT:   %Destroy.Op.call: init %empty_tuple.type = call %Destroy.Op.bound(%.var)
    351. 

  351. // CHECK:STDOUT:   <elided>
    352. 

  352. // CHECK:STDOUT: }
    353. 

  353. // CHECK:STDOUT:
    354. 

  354. // CHECK:STDOUT: fn @H() {
    355. 

  355. // CHECK:STDOUT: !entry:
    356. 

  356. // CHECK:STDOUT:   name_binding_decl {
    357. 

  357. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = ref_binding_pattern x [concrete]
    358. 

  358. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = ref_binding_pattern y [concrete]
    359. 

  359. // CHECK:STDOUT:     %.loc22_34: %pattern_type.de4 = tuple_pattern (%x.patt, %y.patt) [concrete]
    360. 

  360. // CHECK:STDOUT:     %.var_patt: %pattern_type.de4 = var_pattern %.loc22_34 [concrete]
    361. 

  361. // CHECK:STDOUT:   }
    362. 

  362. // CHECK:STDOUT:   %.var: ref %tuple.type.b6b = var %.var_patt
    363. 

  363. // CHECK:STDOUT:   %MakeTuple.ref: %MakeTuple.type = name_ref MakeTuple, file.%MakeTuple.decl [concrete = constants.%MakeTuple]
    364. 

  364. // CHECK:STDOUT:   %.loc22_3: ref %tuple.type.b6b = splice_block %.var {}
    365. 

  365. // CHECK:STDOUT:   %MakeTuple.call: init %tuple.type.b6b to %.loc22_3 = call %MakeTuple.ref()
    366. 

  366. // CHECK:STDOUT:   assign %.var, %MakeTuple.call
    367. 

  367. // CHECK:STDOUT:   %tuple.elem0: ref %empty_struct_type = tuple_access %.var, element0
    368. 

  368. // CHECK:STDOUT:   %tuple.elem1: ref %empty_struct_type = tuple_access %.var, element1
    369. 

  369. // CHECK:STDOUT:   %.loc22_19.1: type = splice_block %.loc22_19.3 [concrete = constants.%empty_struct_type] {
    370. 

  370. // CHECK:STDOUT:     %.loc22_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    371. 

  371. // CHECK:STDOUT:     %.loc22_19.3: type = converted %.loc22_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    372. 

  372. // CHECK:STDOUT:   }
    373. 

  373. // CHECK:STDOUT:   %x: ref %empty_struct_type = ref_binding x, %tuple.elem0
    374. 

  374. // CHECK:STDOUT:   %.loc22_33.1: type = splice_block %.loc22_33.3 [concrete = constants.%empty_struct_type] {
    375. 

  375. // CHECK:STDOUT:     %.loc22_33.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    376. 

  376. // CHECK:STDOUT:     %.loc22_33.3: type = converted %.loc22_33.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    377. 

  377. // CHECK:STDOUT:   }
    378. 

  378. // CHECK:STDOUT:   %y: ref %empty_struct_type = ref_binding y, %tuple.elem1
    379. 

  379. // CHECK:STDOUT:   %Destroy.Op.bound: <bound method> = bound_method %.var, constants.%Destroy.Op
    380. 

  380. // CHECK:STDOUT:   %Destroy.Op.call: init %empty_tuple.type = call %Destroy.Op.bound(%.var)
    381. 

  381. // CHECK:STDOUT:   <elided>
    382. 

  382. // CHECK:STDOUT: }
    383. 

  383. // CHECK:STDOUT:
    384. 

  384. // CHECK:STDOUT: --- nested.carbon
    385. 

  385. // CHECK:STDOUT:
    386. 

  386. // CHECK:STDOUT: constants {
    387. 

  387. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    388. 

  388. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    389. 

  389. // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
    390. 

  390. // CHECK:STDOUT:   %tuple.type.b6b: type = tuple_type (%empty_struct_type, %empty_struct_type) [concrete]
    391. 

  391. // CHECK:STDOUT:   %pattern_type.de4: type = pattern_type %tuple.type.b6b [concrete]
    392. 

  392. // CHECK:STDOUT:   %tuple.type.6ca: type = tuple_type (%empty_struct_type, %tuple.type.b6b) [concrete]
    393. 

  393. // CHECK:STDOUT:   %pattern_type.361: type = pattern_type %tuple.type.6ca [concrete]
    394. 

  394. // CHECK:STDOUT:   %tuple.9a3: %tuple.type.b6b = tuple_value (%empty_struct, %empty_struct) [concrete]
    395. 

  395. // CHECK:STDOUT:   %tuple.56c: %tuple.type.6ca = tuple_value (%empty_struct, %tuple.9a3) [concrete]
    396. 

  396. // CHECK:STDOUT: }
    397. 

  397. // CHECK:STDOUT:
    398. 

  398. // CHECK:STDOUT: fn @F() {
    399. 

  399. // CHECK:STDOUT: !entry:
    400. 

  400. // CHECK:STDOUT:   name_binding_decl {
    401. 

  401. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = value_binding_pattern x [concrete]
    402. 

  402. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = value_binding_pattern y [concrete]
    403. 

  403. // CHECK:STDOUT:     %z.patt: %pattern_type.a96 = value_binding_pattern z [concrete]
    404. 

  404. // CHECK:STDOUT:     %.loc6_49: %pattern_type.de4 = tuple_pattern (%y.patt, %z.patt) [concrete]
    405. 

  405. // CHECK:STDOUT:     %.loc6_50: %pattern_type.361 = tuple_pattern (%x.patt, %.loc6_49) [concrete]
    406. 

  406. // CHECK:STDOUT:   }
    407. 

  407. // CHECK:STDOUT:   %.loc6_56.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    408. 

  408. // CHECK:STDOUT:   %.loc6_61.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    409. 

  409. // CHECK:STDOUT:   %.loc6_65.1: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    410. 

  410. // CHECK:STDOUT:   %.loc6_66: %tuple.type.b6b = tuple_literal (%.loc6_61.1, %.loc6_65.1) [concrete = constants.%tuple.9a3]
    411. 

  411. // CHECK:STDOUT:   %.loc6_67: %tuple.type.6ca = tuple_literal (%.loc6_56.1, %.loc6_66) [concrete = constants.%tuple.56c]
    412. 

  412. // CHECK:STDOUT:   %.loc6_19.1: type = splice_block %.loc6_19.3 [concrete = constants.%empty_struct_type] {
    413. 

  413. // CHECK:STDOUT:     %.loc6_19.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    414. 

  414. // CHECK:STDOUT:     %.loc6_19.3: type = converted %.loc6_19.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    415. 

  415. // CHECK:STDOUT:   }
    416. 

  416. // CHECK:STDOUT:   %empty_struct.loc6_56: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    417. 

  417. // CHECK:STDOUT:   %.loc6_56.2: %empty_struct_type = converted %.loc6_56.1, %empty_struct.loc6_56 [concrete = constants.%empty_struct]
    418. 

  418. // CHECK:STDOUT:   %x: %empty_struct_type = value_binding x, %.loc6_56.2
    419. 

  419. // CHECK:STDOUT:   %.loc6_34.1: type = splice_block %.loc6_34.3 [concrete = constants.%empty_struct_type] {
    420. 

  420. // CHECK:STDOUT:     %.loc6_34.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    421. 

  421. // CHECK:STDOUT:     %.loc6_34.3: type = converted %.loc6_34.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    422. 

  422. // CHECK:STDOUT:   }
    423. 

  423. // CHECK:STDOUT:   %empty_struct.loc6_61: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    424. 

  424. // CHECK:STDOUT:   %.loc6_61.2: %empty_struct_type = converted %.loc6_61.1, %empty_struct.loc6_61 [concrete = constants.%empty_struct]
    425. 

  425. // CHECK:STDOUT:   %y: %empty_struct_type = value_binding y, %.loc6_61.2
    426. 

  426. // CHECK:STDOUT:   %.loc6_48.1: type = splice_block %.loc6_48.3 [concrete = constants.%empty_struct_type] {
    427. 

  427. // CHECK:STDOUT:     %.loc6_48.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    428. 

  428. // CHECK:STDOUT:     %.loc6_48.3: type = converted %.loc6_48.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    429. 

  429. // CHECK:STDOUT:   }
    430. 

  430. // CHECK:STDOUT:   %empty_struct.loc6_65: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    431. 

  431. // CHECK:STDOUT:   %.loc6_65.2: %empty_struct_type = converted %.loc6_65.1, %empty_struct.loc6_65 [concrete = constants.%empty_struct]
    432. 

  432. // CHECK:STDOUT:   %z: %empty_struct_type = value_binding z, %.loc6_65.2
    433. 

  433. // CHECK:STDOUT:   <elided>
    434. 

  434. // CHECK:STDOUT: }
    435. 

  435. // CHECK:STDOUT:
    436. 

  436. // CHECK:STDOUT: --- package_scope.carbon
    437. 

  437. // CHECK:STDOUT:
    438. 

  438. // CHECK:STDOUT: constants {
    439. 

  439. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    440. 

  440. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    441. 

  441. // CHECK:STDOUT:   %pattern_type.a96: type = pattern_type %empty_struct_type [concrete]
    442. 

  442. // CHECK:STDOUT:   %tuple.type: type = tuple_type (%empty_struct_type, %empty_struct_type) [concrete]
    443. 

  443. // CHECK:STDOUT:   %pattern_type.de4: type = pattern_type %tuple.type [concrete]
    444. 

  444. // CHECK:STDOUT:   %tuple: %tuple.type = tuple_value (%empty_struct, %empty_struct) [concrete]
    445. 

  445. // CHECK:STDOUT: }
    446. 

  446. // CHECK:STDOUT:
    447. 

  447. // CHECK:STDOUT: file {
    448. 

  448. // CHECK:STDOUT:   name_binding_decl {
    449. 

  449. // CHECK:STDOUT:     %x.patt: %pattern_type.a96 = value_binding_pattern x [concrete]
    450. 

  450. // CHECK:STDOUT:     %y.patt: %pattern_type.a96 = value_binding_pattern y [concrete]
    451. 

  451. // CHECK:STDOUT:     %.loc5_18: %pattern_type.de4 = tuple_pattern (%x.patt, %y.patt) [concrete]
    452. 

  452. // CHECK:STDOUT:   }
    453. 

  453. // CHECK:STDOUT:   %.loc5_10.1: type = splice_block %.loc5_10.3 [concrete = constants.%empty_struct_type] {
    454. 

  454. // CHECK:STDOUT:     %.loc5_10.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    455. 

  455. // CHECK:STDOUT:     %.loc5_10.3: type = converted %.loc5_10.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    456. 

  456. // CHECK:STDOUT:   }
    457. 

  457. // CHECK:STDOUT:   %empty_struct.loc5_24: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    458. 

  458. // CHECK:STDOUT:   %.loc5_24: %empty_struct_type = converted @__global_init.%.loc5_24, %empty_struct.loc5_24 [concrete = constants.%empty_struct]
    459. 

  459. // CHECK:STDOUT:   %x: %empty_struct_type = value_binding x, %.loc5_24
    460. 

  460. // CHECK:STDOUT:   %.loc5_17.1: type = splice_block %.loc5_17.3 [concrete = constants.%empty_struct_type] {
    461. 

  461. // CHECK:STDOUT:     %.loc5_17.2: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    462. 

  462. // CHECK:STDOUT:     %.loc5_17.3: type = converted %.loc5_17.2, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    463. 

  463. // CHECK:STDOUT:   }
    464. 

  464. // CHECK:STDOUT:   %empty_struct.loc5_28: %empty_struct_type = struct_value () [concrete = constants.%empty_struct]
    465. 

  465. // CHECK:STDOUT:   %.loc5_28: %empty_struct_type = converted @__global_init.%.loc5_28, %empty_struct.loc5_28 [concrete = constants.%empty_struct]
    466. 

  466. // CHECK:STDOUT:   %y: %empty_struct_type = value_binding y, %.loc5_28
    467. 

  467. // CHECK:STDOUT: }
    468. 

  468. // CHECK:STDOUT:
    469. 

  469. // CHECK:STDOUT: fn @__global_init() {
    470. 

  470. // CHECK:STDOUT: !entry:
    471. 

  471. // CHECK:STDOUT:   %.loc5_24: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    472. 

  472. // CHECK:STDOUT:   %.loc5_28: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    473. 

  473. // CHECK:STDOUT:   %.loc5_29: %tuple.type = tuple_literal (%.loc5_24, %.loc5_28) [concrete = constants.%tuple]
    474. 

  474. // CHECK:STDOUT:   <elided>
    475. 

  475. // CHECK:STDOUT: }
    476. 

  476. // CHECK:STDOUT:
    477.