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is_null.carbon

is_null.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/bool.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/builtins/pointer/is_null.carbon
    10. 

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

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtins/pointer/is_null.carbon
    12. 

  12. 

  13. // --- call_exact.carbon
    14. 

  14. 

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

  16. 

  17. class C {}
    18. 

  18. 

  19. fn MakeUnformed(t: type) -> type = "maybe_unformed.make_type";
    20. 

  20. fn IsNullEmptyStruct(p: MakeUnformed({}*)) -> bool = "pointer.is_null";
    21. 

  21. fn IsNullC(p: MakeUnformed(C*)) -> bool = "pointer.is_null";
    22. 

  22. 

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

  24. fn TestEmptyStruct(s: MakeUnformed({}*)) -> bool {
    25. 

  25.   return IsNullEmptyStruct(s);
    26. 

  26. }
    27. 

  27. 

  28. fn TestC(c: MakeUnformed(C*)) -> bool {
    29. 

  29.   return IsNullC(c);
    30. 

  30. }
    31. 

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

  32. 

  33. // --- call_generic.carbon
    34. 

  34. 

  35. library "[[@TEST_NAME]]";
    36. 

  36. 

  37. fn MakeUnformed(t: type) -> type = "maybe_unformed.make_type";
    38. 

  38. fn IsNull[T:! type](p: MakeUnformed(T*)) -> bool = "pointer.is_null";
    39. 

  39. 

  40. class C {}
    41. 

  41. 

  42. //@dump-sem-ir-begin
    43. 

  43. fn TestEmptyStruct(s: MakeUnformed({}*)) -> bool {
    44. 

  44.   return IsNull(s);
    45. 

  45. }
    46. 

  46. 

  47. fn TestC(c: MakeUnformed(C*)) -> bool {
    48. 

  48.   return IsNull(c);
    49. 

  49. }
    50. 

  50. //@dump-sem-ir-end
    51. 

  51. 

  52. // --- fail_bad_decl.carbon
    53. 

  53. 

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

  55. 

  56. fn MakeUnformed(t: type) -> type = "maybe_unformed.make_type";
    57. 

  57. 

  58. // CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "pointer.is_null" [InvalidBuiltinSignature]
    59. 

  59. // CHECK:STDERR: fn NoParam() -> bool = "pointer.is_null";
    60. 

  60. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~
    61. 

  61. // CHECK:STDERR:
    62. 

  62. fn NoParam() -> bool = "pointer.is_null";
    63. 

  63. 

  64. // CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "pointer.is_null" [InvalidBuiltinSignature]
    65. 

  65. // CHECK:STDERR: fn NoRetType(p: MakeUnformed({}*)) = "pointer.is_null";
    66. 

  66. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    67. 

  67. // CHECK:STDERR:
    68. 

  68. fn NoRetType(p: MakeUnformed({}*)) = "pointer.is_null";
    69. 

  69. 

  70. // CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "pointer.is_null" [InvalidBuiltinSignature]
    71. 

  71. // CHECK:STDERR: fn WrongRetType(p: MakeUnformed({}*)) -> {} = "pointer.is_null";
    72. 

  72. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    73. 

  73. // CHECK:STDERR:
    74. 

  74. fn WrongRetType(p: MakeUnformed({}*)) -> {} = "pointer.is_null";
    75. 

  75. 

  76. // CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "pointer.is_null" [InvalidBuiltinSignature]
    77. 

  77. // CHECK:STDERR: fn NoUnformed(p: {}*) -> bool = "pointer.is_null";
    78. 

  78. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    79. 

  79. // CHECK:STDERR:
    80. 

  80. fn NoUnformed(p: {}*) -> bool = "pointer.is_null";
    81. 

  81. 

  82. // CHECK:STDERR: fail_bad_decl.carbon:[[@LINE+4]]:1: error: invalid signature for builtin function "pointer.is_null" [InvalidBuiltinSignature]
    83. 

  83. // CHECK:STDERR: fn NotPointer(p: MakeUnformed({})) -> bool = "pointer.is_null";
    84. 

  84. // CHECK:STDERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    85. 

  85. // CHECK:STDERR:
    86. 

  86. fn NotPointer(p: MakeUnformed({})) -> bool = "pointer.is_null";
    87. 

  87. 

  88. // CHECK:STDOUT: --- call_exact.carbon
    89. 

  89. // CHECK:STDOUT:
    90. 

  90. // CHECK:STDOUT: constants {
    91. 

  91. // CHECK:STDOUT:   %C: type = class_type @C [concrete]
    92. 

  92. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    93. 

  93. // CHECK:STDOUT:   %MakeUnformed.type: type = fn_type @MakeUnformed [concrete]
    94. 

  94. // CHECK:STDOUT:   %MakeUnformed: %MakeUnformed.type = struct_value () [concrete]
    95. 

  95. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    96. 

  96. // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
    97. 

  97. // CHECK:STDOUT:   %.b2d: type = maybe_unformed_type %ptr.c28 [concrete]
    98. 

  98. // CHECK:STDOUT:   %pattern_type.b42: type = pattern_type %.b2d [concrete]
    99. 

  99. // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
    100. 

  100. // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
    101. 

  101. // CHECK:STDOUT:   %.df2: form = init_form bool, call_param1 [concrete]
    102. 

  102. // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
    103. 

  103. // CHECK:STDOUT:   %IsNullEmptyStruct.type: type = fn_type @IsNullEmptyStruct [concrete]
    104. 

  104. // CHECK:STDOUT:   %IsNullEmptyStruct: %IsNullEmptyStruct.type = struct_value () [concrete]
    105. 

  105. // CHECK:STDOUT:   %ptr.31e: type = ptr_type %C [concrete]
    106. 

  106. // CHECK:STDOUT:   %.edf: type = maybe_unformed_type %ptr.31e [concrete]
    107. 

  107. // CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %.edf [concrete]
    108. 

  108. // CHECK:STDOUT:   %IsNullC.type: type = fn_type @IsNullC [concrete]
    109. 

  109. // CHECK:STDOUT:   %IsNullC: %IsNullC.type = struct_value () [concrete]
    110. 

  110. // CHECK:STDOUT:   %TestEmptyStruct.type: type = fn_type @TestEmptyStruct [concrete]
    111. 

  111. // CHECK:STDOUT:   %TestEmptyStruct: %TestEmptyStruct.type = struct_value () [concrete]
    112. 

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

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

  114. // CHECK:STDOUT: }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: imports {
    117. 

  117. // CHECK:STDOUT: }
    118. 

  118. // CHECK:STDOUT:
    119. 

  119. // CHECK:STDOUT: file {
    120. 

  120. // CHECK:STDOUT:   %TestEmptyStruct.decl: %TestEmptyStruct.type = fn_decl @TestEmptyStruct [concrete = constants.%TestEmptyStruct] {
    121. 

  121. // CHECK:STDOUT:     %s.patt: %pattern_type.b42 = value_binding_pattern s [concrete]
    122. 

  122. // CHECK:STDOUT:     %s.param_patt: %pattern_type.b42 = value_param_pattern %s.patt, call_param0 [concrete]
    123. 

  123. // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
    124. 

  124. // CHECK:STDOUT:     %return.param_patt: %pattern_type.831 = out_param_pattern %return.patt, call_param1 [concrete]
    125. 

  125. // CHECK:STDOUT:   } {
    126. 

  126. // CHECK:STDOUT:     %Bool.call: init type = call constants.%Bool() [concrete = bool]
    127. 

  127. // CHECK:STDOUT:     %.loc11_45.1: type = value_of_initializer %Bool.call [concrete = bool]
    128. 

  128. // CHECK:STDOUT:     %.loc11_45.2: type = converted %Bool.call, %.loc11_45.1 [concrete = bool]
    129. 

  129. // CHECK:STDOUT:     %.loc11_45.3: form = init_form %.loc11_45.2, call_param1 [concrete = constants.%.df2]
    130. 

  130. // CHECK:STDOUT:     %s.param: %.b2d = value_param call_param0
    131. 

  131. // CHECK:STDOUT:     %.loc11_39.1: type = splice_block %.loc11_39.3 [concrete = constants.%.b2d] {
    132. 

  132. // CHECK:STDOUT:       %MakeUnformed.ref: %MakeUnformed.type = name_ref MakeUnformed, file.%MakeUnformed.decl [concrete = constants.%MakeUnformed]
    133. 

  133. // CHECK:STDOUT:       %.loc11_37: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    134. 

  134. // CHECK:STDOUT:       %.loc11_38: type = converted %.loc11_37, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    135. 

  135. // CHECK:STDOUT:       %ptr: type = ptr_type %.loc11_38 [concrete = constants.%ptr.c28]
    136. 

  136. // CHECK:STDOUT:       %MakeUnformed.call: init type = call %MakeUnformed.ref(%ptr) [concrete = constants.%.b2d]
    137. 

  137. // CHECK:STDOUT:       %.loc11_39.2: type = value_of_initializer %MakeUnformed.call [concrete = constants.%.b2d]
    138. 

  138. // CHECK:STDOUT:       %.loc11_39.3: type = converted %MakeUnformed.call, %.loc11_39.2 [concrete = constants.%.b2d]
    139. 

  139. // CHECK:STDOUT:     }
    140. 

  140. // CHECK:STDOUT:     %s: %.b2d = value_binding s, %s.param
    141. 

  141. // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
    142. 

  142. // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
    143. 

  143. // CHECK:STDOUT:   }
    144. 

  144. // CHECK:STDOUT:   %TestC.decl: %TestC.type = fn_decl @TestC [concrete = constants.%TestC] {
    145. 

  145. // CHECK:STDOUT:     %c.patt: %pattern_type.b78 = value_binding_pattern c [concrete]
    146. 

  146. // CHECK:STDOUT:     %c.param_patt: %pattern_type.b78 = value_param_pattern %c.patt, call_param0 [concrete]
    147. 

  147. // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
    148. 

  148. // CHECK:STDOUT:     %return.param_patt: %pattern_type.831 = out_param_pattern %return.patt, call_param1 [concrete]
    149. 

  149. // CHECK:STDOUT:   } {
    150. 

  150. // CHECK:STDOUT:     %Bool.call: init type = call constants.%Bool() [concrete = bool]
    151. 

  151. // CHECK:STDOUT:     %.loc15_34.1: type = value_of_initializer %Bool.call [concrete = bool]
    152. 

  152. // CHECK:STDOUT:     %.loc15_34.2: type = converted %Bool.call, %.loc15_34.1 [concrete = bool]
    153. 

  153. // CHECK:STDOUT:     %.loc15_34.3: form = init_form %.loc15_34.2, call_param1 [concrete = constants.%.df2]
    154. 

  154. // CHECK:STDOUT:     %c.param: %.edf = value_param call_param0
    155. 

  155. // CHECK:STDOUT:     %.loc15_28.1: type = splice_block %.loc15_28.3 [concrete = constants.%.edf] {
    156. 

  156. // CHECK:STDOUT:       %MakeUnformed.ref: %MakeUnformed.type = name_ref MakeUnformed, file.%MakeUnformed.decl [concrete = constants.%MakeUnformed]
    157. 

  157. // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
    158. 

  158. // CHECK:STDOUT:       %ptr: type = ptr_type %C.ref [concrete = constants.%ptr.31e]
    159. 

  159. // CHECK:STDOUT:       %MakeUnformed.call: init type = call %MakeUnformed.ref(%ptr) [concrete = constants.%.edf]
    160. 

  160. // CHECK:STDOUT:       %.loc15_28.2: type = value_of_initializer %MakeUnformed.call [concrete = constants.%.edf]
    161. 

  161. // CHECK:STDOUT:       %.loc15_28.3: type = converted %MakeUnformed.call, %.loc15_28.2 [concrete = constants.%.edf]
    162. 

  162. // CHECK:STDOUT:     }
    163. 

  163. // CHECK:STDOUT:     %c: %.edf = value_binding c, %c.param
    164. 

  164. // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
    165. 

  165. // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
    166. 

  166. // CHECK:STDOUT:   }
    167. 

  167. // CHECK:STDOUT: }
    168. 

  168. // CHECK:STDOUT:
    169. 

  169. // CHECK:STDOUT: fn @TestEmptyStruct(%s.param: %.b2d) -> bool {
    170. 

  170. // CHECK:STDOUT: !entry:
    171. 

  171. // CHECK:STDOUT:   %IsNullEmptyStruct.ref: %IsNullEmptyStruct.type = name_ref IsNullEmptyStruct, file.%IsNullEmptyStruct.decl [concrete = constants.%IsNullEmptyStruct]
    172. 

  172. // CHECK:STDOUT:   %s.ref: %.b2d = name_ref s, %s
    173. 

  173. // CHECK:STDOUT:   %IsNullEmptyStruct.call: init bool = call %IsNullEmptyStruct.ref(%s.ref)
    174. 

  174. // CHECK:STDOUT:   return %IsNullEmptyStruct.call to %return.param
    175. 

  175. // CHECK:STDOUT: }
    176. 

  176. // CHECK:STDOUT:
    177. 

  177. // CHECK:STDOUT: fn @TestC(%c.param: %.edf) -> bool {
    178. 

  178. // CHECK:STDOUT: !entry:
    179. 

  179. // CHECK:STDOUT:   %IsNullC.ref: %IsNullC.type = name_ref IsNullC, file.%IsNullC.decl [concrete = constants.%IsNullC]
    180. 

  180. // CHECK:STDOUT:   %c.ref: %.edf = name_ref c, %c
    181. 

  181. // CHECK:STDOUT:   %IsNullC.call: init bool = call %IsNullC.ref(%c.ref)
    182. 

  182. // CHECK:STDOUT:   return %IsNullC.call to %return.param
    183. 

  183. // CHECK:STDOUT: }
    184. 

  184. // CHECK:STDOUT:
    185. 

  185. // CHECK:STDOUT: --- call_generic.carbon
    186. 

  186. // CHECK:STDOUT:
    187. 

  187. // CHECK:STDOUT: constants {
    188. 

  188. // CHECK:STDOUT:   %MakeUnformed.type: type = fn_type @MakeUnformed [concrete]
    189. 

  189. // CHECK:STDOUT:   %MakeUnformed: %MakeUnformed.type = struct_value () [concrete]
    190. 

  190. // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [concrete]
    191. 

  191. // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [concrete]
    192. 

  192. // CHECK:STDOUT:   %.df2: form = init_form bool, call_param1 [concrete]
    193. 

  193. // CHECK:STDOUT:   %pattern_type.831: type = pattern_type bool [concrete]
    194. 

  194. // CHECK:STDOUT:   %IsNull.type: type = fn_type @IsNull [concrete]
    195. 

  195. // CHECK:STDOUT:   %IsNull: %IsNull.type = struct_value () [concrete]
    196. 

  196. // CHECK:STDOUT:   %C: type = class_type @C [concrete]
    197. 

  197. // CHECK:STDOUT:   %empty_struct_type: type = struct_type {} [concrete]
    198. 

  198. // CHECK:STDOUT:   %empty_struct: %empty_struct_type = struct_value () [concrete]
    199. 

  199. // CHECK:STDOUT:   %ptr.c28: type = ptr_type %empty_struct_type [concrete]
    200. 

  200. // CHECK:STDOUT:   %.b2d: type = maybe_unformed_type %ptr.c28 [concrete]
    201. 

  201. // CHECK:STDOUT:   %pattern_type.b42: type = pattern_type %.b2d [concrete]
    202. 

  202. // CHECK:STDOUT:   %TestEmptyStruct.type: type = fn_type @TestEmptyStruct [concrete]
    203. 

  203. // CHECK:STDOUT:   %TestEmptyStruct: %TestEmptyStruct.type = struct_value () [concrete]
    204. 

  204. // CHECK:STDOUT:   %IsNull.specific_fn.34e: <specific function> = specific_function %IsNull, @IsNull(%empty_struct_type) [concrete]
    205. 

  205. // CHECK:STDOUT:   %ptr.31e: type = ptr_type %C [concrete]
    206. 

  206. // CHECK:STDOUT:   %.edf: type = maybe_unformed_type %ptr.31e [concrete]
    207. 

  207. // CHECK:STDOUT:   %pattern_type.b78: type = pattern_type %.edf [concrete]
    208. 

  208. // CHECK:STDOUT:   %TestC.type: type = fn_type @TestC [concrete]
    209. 

  209. // CHECK:STDOUT:   %TestC: %TestC.type = struct_value () [concrete]
    210. 

  210. // CHECK:STDOUT:   %IsNull.specific_fn.b1f: <specific function> = specific_function %IsNull, @IsNull(%C) [concrete]
    211. 

  211. // CHECK:STDOUT: }
    212. 

  212. // CHECK:STDOUT:
    213. 

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

  214. // CHECK:STDOUT: }
    215. 

  215. // CHECK:STDOUT:
    216. 

  216. // CHECK:STDOUT: file {
    217. 

  217. // CHECK:STDOUT:   %TestEmptyStruct.decl: %TestEmptyStruct.type = fn_decl @TestEmptyStruct [concrete = constants.%TestEmptyStruct] {
    218. 

  218. // CHECK:STDOUT:     %s.patt: %pattern_type.b42 = value_binding_pattern s [concrete]
    219. 

  219. // CHECK:STDOUT:     %s.param_patt: %pattern_type.b42 = value_param_pattern %s.patt, call_param0 [concrete]
    220. 

  220. // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
    221. 

  221. // CHECK:STDOUT:     %return.param_patt: %pattern_type.831 = out_param_pattern %return.patt, call_param1 [concrete]
    222. 

  222. // CHECK:STDOUT:   } {
    223. 

  223. // CHECK:STDOUT:     %Bool.call: init type = call constants.%Bool() [concrete = bool]
    224. 

  224. // CHECK:STDOUT:     %.loc10_45.1: type = value_of_initializer %Bool.call [concrete = bool]
    225. 

  225. // CHECK:STDOUT:     %.loc10_45.2: type = converted %Bool.call, %.loc10_45.1 [concrete = bool]
    226. 

  226. // CHECK:STDOUT:     %.loc10_45.3: form = init_form %.loc10_45.2, call_param1 [concrete = constants.%.df2]
    227. 

  227. // CHECK:STDOUT:     %s.param: %.b2d = value_param call_param0
    228. 

  228. // CHECK:STDOUT:     %.loc10_39.1: type = splice_block %.loc10_39.3 [concrete = constants.%.b2d] {
    229. 

  229. // CHECK:STDOUT:       %MakeUnformed.ref: %MakeUnformed.type = name_ref MakeUnformed, file.%MakeUnformed.decl [concrete = constants.%MakeUnformed]
    230. 

  230. // CHECK:STDOUT:       %.loc10_37: %empty_struct_type = struct_literal () [concrete = constants.%empty_struct]
    231. 

  231. // CHECK:STDOUT:       %.loc10_38: type = converted %.loc10_37, constants.%empty_struct_type [concrete = constants.%empty_struct_type]
    232. 

  232. // CHECK:STDOUT:       %ptr: type = ptr_type %.loc10_38 [concrete = constants.%ptr.c28]
    233. 

  233. // CHECK:STDOUT:       %MakeUnformed.call: init type = call %MakeUnformed.ref(%ptr) [concrete = constants.%.b2d]
    234. 

  234. // CHECK:STDOUT:       %.loc10_39.2: type = value_of_initializer %MakeUnformed.call [concrete = constants.%.b2d]
    235. 

  235. // CHECK:STDOUT:       %.loc10_39.3: type = converted %MakeUnformed.call, %.loc10_39.2 [concrete = constants.%.b2d]
    236. 

  236. // CHECK:STDOUT:     }
    237. 

  237. // CHECK:STDOUT:     %s: %.b2d = value_binding s, %s.param
    238. 

  238. // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
    239. 

  239. // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
    240. 

  240. // CHECK:STDOUT:   }
    241. 

  241. // CHECK:STDOUT:   %TestC.decl: %TestC.type = fn_decl @TestC [concrete = constants.%TestC] {
    242. 

  242. // CHECK:STDOUT:     %c.patt: %pattern_type.b78 = value_binding_pattern c [concrete]
    243. 

  243. // CHECK:STDOUT:     %c.param_patt: %pattern_type.b78 = value_param_pattern %c.patt, call_param0 [concrete]
    244. 

  244. // CHECK:STDOUT:     %return.patt: %pattern_type.831 = return_slot_pattern [concrete]
    245. 

  245. // CHECK:STDOUT:     %return.param_patt: %pattern_type.831 = out_param_pattern %return.patt, call_param1 [concrete]
    246. 

  246. // CHECK:STDOUT:   } {
    247. 

  247. // CHECK:STDOUT:     %Bool.call: init type = call constants.%Bool() [concrete = bool]
    248. 

  248. // CHECK:STDOUT:     %.loc14_34.1: type = value_of_initializer %Bool.call [concrete = bool]
    249. 

  249. // CHECK:STDOUT:     %.loc14_34.2: type = converted %Bool.call, %.loc14_34.1 [concrete = bool]
    250. 

  250. // CHECK:STDOUT:     %.loc14_34.3: form = init_form %.loc14_34.2, call_param1 [concrete = constants.%.df2]
    251. 

  251. // CHECK:STDOUT:     %c.param: %.edf = value_param call_param0
    252. 

  252. // CHECK:STDOUT:     %.loc14_28.1: type = splice_block %.loc14_28.3 [concrete = constants.%.edf] {
    253. 

  253. // CHECK:STDOUT:       %MakeUnformed.ref: %MakeUnformed.type = name_ref MakeUnformed, file.%MakeUnformed.decl [concrete = constants.%MakeUnformed]
    254. 

  254. // CHECK:STDOUT:       %C.ref: type = name_ref C, file.%C.decl [concrete = constants.%C]
    255. 

  255. // CHECK:STDOUT:       %ptr: type = ptr_type %C.ref [concrete = constants.%ptr.31e]
    256. 

  256. // CHECK:STDOUT:       %MakeUnformed.call: init type = call %MakeUnformed.ref(%ptr) [concrete = constants.%.edf]
    257. 

  257. // CHECK:STDOUT:       %.loc14_28.2: type = value_of_initializer %MakeUnformed.call [concrete = constants.%.edf]
    258. 

  258. // CHECK:STDOUT:       %.loc14_28.3: type = converted %MakeUnformed.call, %.loc14_28.2 [concrete = constants.%.edf]
    259. 

  259. // CHECK:STDOUT:     }
    260. 

  260. // CHECK:STDOUT:     %c: %.edf = value_binding c, %c.param
    261. 

  261. // CHECK:STDOUT:     %return.param: ref bool = out_param call_param1
    262. 

  262. // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
    263. 

  263. // CHECK:STDOUT:   }
    264. 

  264. // CHECK:STDOUT: }
    265. 

  265. // CHECK:STDOUT:
    266. 

  266. // CHECK:STDOUT: fn @TestEmptyStruct(%s.param: %.b2d) -> bool {
    267. 

  267. // CHECK:STDOUT: !entry:
    268. 

  268. // CHECK:STDOUT:   %IsNull.ref: %IsNull.type = name_ref IsNull, file.%IsNull.decl [concrete = constants.%IsNull]
    269. 

  269. // CHECK:STDOUT:   %s.ref: %.b2d = name_ref s, %s
    270. 

  270. // CHECK:STDOUT:   %IsNull.specific_fn: <specific function> = specific_function %IsNull.ref, @IsNull(constants.%empty_struct_type) [concrete = constants.%IsNull.specific_fn.34e]
    271. 

  271. // CHECK:STDOUT:   %IsNull.call: init bool = call %IsNull.specific_fn(%s.ref)
    272. 

  272. // CHECK:STDOUT:   return %IsNull.call to %return.param
    273. 

  273. // CHECK:STDOUT: }
    274. 

  274. // CHECK:STDOUT:
    275. 

  275. // CHECK:STDOUT: fn @TestC(%c.param: %.edf) -> bool {
    276. 

  276. // CHECK:STDOUT: !entry:
    277. 

  277. // CHECK:STDOUT:   %IsNull.ref: %IsNull.type = name_ref IsNull, file.%IsNull.decl [concrete = constants.%IsNull]
    278. 

  278. // CHECK:STDOUT:   %c.ref: %.edf = name_ref c, %c
    279. 

  279. // CHECK:STDOUT:   %IsNull.specific_fn: <specific function> = specific_function %IsNull.ref, @IsNull(constants.%C) [concrete = constants.%IsNull.specific_fn.b1f]
    280. 

  280. // CHECK:STDOUT:   %IsNull.call: init bool = call %IsNull.specific_fn(%c.ref)
    281. 

  281. // CHECK:STDOUT:   return %IsNull.call to %return.param
    282. 

  282. // CHECK:STDOUT: }
    283. 

  283. // CHECK:STDOUT:
    284.