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destroy.carbon

destroy.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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/convert.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/lower/testdata/function/definition/destroy.carbon
    10. 

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

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/definition/destroy.carbon
    12. 

  12. 

  13. // --- let_param.carbon
    14. 

  14. 

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

  16. 

  17. class C {}
    18. 

  18. 

  19. fn F(x: C) {
    20. 

  20. }
    21. 

  21. 

  22. fn G();
    23. 

  23. 

  24. fn CallF() {
    25. 

  25.   F({});
    26. 

  26.   // TODO: The `C` instance is destroyed after the call to `G()`, and
    27. 

  27.   // should be destroyed before.
    28. 

  28.   G();
    29. 

  29. }
    30. 

  30. 

  31. // --- var_param.carbon
    32. 

  32. 

  33. library "[[@TEST_NAME]]";
    34. 

  34. 

  35. class C {}
    36. 

  36. 

  37. fn F(var x: C) {
    38. 

  38. }
    39. 

  39. 

  40. fn G();
    41. 

  41. 

  42. fn CallF() {
    43. 

  43.   F({});
    44. 

  44.   // TODO: The `C` instance is destroyed after the call to `G()`, and
    45. 

  45.   // should be destroyed before.
    46. 

  46.   G();
    47. 

  47. }
    48. 

  48. 

  49. // --- return_slot.carbon
    50. 

  50. 

  51. library "[[@TEST_NAME]]";
    52. 

  52. 

  53. class C {}
    54. 

  54. 

  55. fn F() -> C {
    56. 

  56.   return {};
    57. 

  57. }
    58. 

  58. 

  59. fn G();
    60. 

  60. 

  61. fn Forward() -> C {
    62. 

  62.   return F();
    63. 

  63. }
    64. 

  64. 

  65. fn InitVar() {
    66. 

  66.   var local: C = F();
    67. 

  67.   G();
    68. 

  68. }
    69. 

  69. 

  70. fn InitLet() {
    71. 

  71.   let local: C = F();
    72. 

  72.   G();
    73. 

  73. }
    74. 

  74. 

  75. // CHECK:STDOUT: ; ModuleID = 'let_param.carbon'
    76. 

  76. // CHECK:STDOUT: source_filename = "let_param.carbon"
    77. 

  77. // CHECK:STDOUT:
    78. 

  78. // CHECK:STDOUT: @C.val.loc12_6.3 = internal constant {} zeroinitializer
    79. 

  79. // CHECK:STDOUT:
    80. 

  80. // CHECK:STDOUT: ; Function Attrs: nounwind
    81. 

  81. // CHECK:STDOUT: define void @_CF.Main(ptr %x) #0 !dbg !4 {
    82. 

  82. // CHECK:STDOUT: entry:
    83. 

  83. // CHECK:STDOUT:   ret void, !dbg !7
    84. 

  84. // CHECK:STDOUT: }
    85. 

  85. // CHECK:STDOUT:
    86. 

  86. // CHECK:STDOUT: declare void @_CG.Main()
    87. 

  87. // CHECK:STDOUT:
    88. 

  88. // CHECK:STDOUT: ; Function Attrs: nounwind
    89. 

  89. // CHECK:STDOUT: define void @_CCallF.Main() #0 !dbg !8 {
    90. 

  90. // CHECK:STDOUT: entry:
    91. 

  91. // CHECK:STDOUT:   %.loc12_6.2.temp = alloca {}, align 8, !dbg !9
    92. 

  92. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc12_6.2.temp), !dbg !9
    93. 

  93. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 1 %.loc12_6.2.temp, ptr align 1 @C.val.loc12_6.3, i64 0, i1 false), !dbg !9
    94. 

  94. // CHECK:STDOUT:   call void @_CF.Main(ptr %.loc12_6.2.temp), !dbg !10
    95. 

  95. // CHECK:STDOUT:   call void @_CG.Main(), !dbg !11
    96. 

  96. // CHECK:STDOUT:   ret void, !dbg !12
    97. 

  97. // CHECK:STDOUT: }
    98. 

  98. // CHECK:STDOUT:
    99. 

  99. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    100. 

  100. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
    101. 

  101. // CHECK:STDOUT:
    102. 

  102. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    103. 

  103. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #2
    104. 

  104. // CHECK:STDOUT:
    105. 

  105. // CHECK:STDOUT: attributes #0 = { nounwind }
    106. 

  106. // CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    107. 

  107. // CHECK:STDOUT: attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    108. 

  108. // CHECK:STDOUT:
    109. 

  109. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    110. 

  110. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    111. 

  111. // CHECK:STDOUT:
    112. 

  112. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    113. 

  113. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    114. 

  114. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    115. 

  115. // CHECK:STDOUT: !3 = !DIFile(filename: "let_param.carbon", directory: "")
    116. 

  116. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    117. 

  117. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    118. 

  118. // CHECK:STDOUT: !6 = !{}
    119. 

  119. // CHECK:STDOUT: !7 = !DILocation(line: 6, column: 1, scope: !4)
    120. 

  120. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "CallF", linkageName: "_CCallF.Main", scope: null, file: !3, line: 11, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    121. 

  121. // CHECK:STDOUT: !9 = !DILocation(line: 12, column: 5, scope: !8)
    122. 

  122. // CHECK:STDOUT: !10 = !DILocation(line: 12, column: 3, scope: !8)
    123. 

  123. // CHECK:STDOUT: !11 = !DILocation(line: 15, column: 3, scope: !8)
    124. 

  124. // CHECK:STDOUT: !12 = !DILocation(line: 11, column: 1, scope: !8)
    125. 

  125. // CHECK:STDOUT: ; ModuleID = 'var_param.carbon'
    126. 

  126. // CHECK:STDOUT: source_filename = "var_param.carbon"
    127. 

  127. // CHECK:STDOUT:
    128. 

  128. // CHECK:STDOUT: @C.val.loc6_6.2 = internal constant {} zeroinitializer
    129. 

  129. // CHECK:STDOUT:
    130. 

  130. // CHECK:STDOUT: ; Function Attrs: nounwind
    131. 

  131. // CHECK:STDOUT: define void @_CF.Main(ptr %x) #0 !dbg !4 {
    132. 

  132. // CHECK:STDOUT: entry:
    133. 

  133. // CHECK:STDOUT:   ret void, !dbg !7
    134. 

  134. // CHECK:STDOUT: }
    135. 

  135. // CHECK:STDOUT:
    136. 

  136. // CHECK:STDOUT: declare void @_CG.Main()
    137. 

  137. // CHECK:STDOUT:
    138. 

  138. // CHECK:STDOUT: ; Function Attrs: nounwind
    139. 

  139. // CHECK:STDOUT: define void @_CCallF.Main() #0 !dbg !8 {
    140. 

  140. // CHECK:STDOUT: entry:
    141. 

  141. // CHECK:STDOUT:   %.loc6_6.1.temp = alloca {}, align 8, !dbg !9
    142. 

  142. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc6_6.1.temp), !dbg !9
    143. 

  143. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 1 %.loc6_6.1.temp, ptr align 1 @C.val.loc6_6.2, i64 0, i1 false), !dbg !9
    144. 

  144. // CHECK:STDOUT:   call void @_CF.Main(ptr %.loc6_6.1.temp), !dbg !10
    145. 

  145. // CHECK:STDOUT:   call void @_CG.Main(), !dbg !11
    146. 

  146. // CHECK:STDOUT:   ret void, !dbg !12
    147. 

  147. // CHECK:STDOUT: }
    148. 

  148. // CHECK:STDOUT:
    149. 

  149. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    150. 

  150. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    153. 

  153. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #2
    154. 

  154. // CHECK:STDOUT:
    155. 

  155. // CHECK:STDOUT: attributes #0 = { nounwind }
    156. 

  156. // CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    157. 

  157. // CHECK:STDOUT: attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    158. 

  158. // CHECK:STDOUT:
    159. 

  159. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    160. 

  160. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    161. 

  161. // CHECK:STDOUT:
    162. 

  162. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    163. 

  163. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    164. 

  164. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    165. 

  165. // CHECK:STDOUT: !3 = !DIFile(filename: "var_param.carbon", directory: "")
    166. 

  166. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    167. 

  167. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    168. 

  168. // CHECK:STDOUT: !6 = !{}
    169. 

  169. // CHECK:STDOUT: !7 = !DILocation(line: 6, column: 1, scope: !4)
    170. 

  170. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "CallF", linkageName: "_CCallF.Main", scope: null, file: !3, line: 11, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    171. 

  171. // CHECK:STDOUT: !9 = !DILocation(line: 6, column: 6, scope: !8)
    172. 

  172. // CHECK:STDOUT: !10 = !DILocation(line: 12, column: 3, scope: !8)
    173. 

  173. // CHECK:STDOUT: !11 = !DILocation(line: 15, column: 3, scope: !8)
    174. 

  174. // CHECK:STDOUT: !12 = !DILocation(line: 11, column: 1, scope: !8)
    175. 

  175. // CHECK:STDOUT: ; ModuleID = 'return_slot.carbon'
    176. 

  176. // CHECK:STDOUT: source_filename = "return_slot.carbon"
    177. 

  177. // CHECK:STDOUT:
    178. 

  178. // CHECK:STDOUT: @C.val.loc7_12 = internal constant {} zeroinitializer
    179. 

  179. // CHECK:STDOUT:
    180. 

  180. // CHECK:STDOUT: ; Function Attrs: nounwind
    181. 

  181. // CHECK:STDOUT: define void @_CF.Main(ptr sret({}) %return) #0 !dbg !4 {
    182. 

  182. // CHECK:STDOUT: entry:
    183. 

  183. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 1 %return, ptr align 1 @C.val.loc7_12, i64 0, i1 false), !dbg !7
    184. 

  184. // CHECK:STDOUT:   ret void, !dbg !7
    185. 

  185. // CHECK:STDOUT: }
    186. 

  186. // CHECK:STDOUT:
    187. 

  187. // CHECK:STDOUT: declare void @_CG.Main()
    188. 

  188. // CHECK:STDOUT:
    189. 

  189. // CHECK:STDOUT: ; Function Attrs: nounwind
    190. 

  190. // CHECK:STDOUT: define void @_CForward.Main(ptr sret({}) %return) #0 !dbg !8 {
    191. 

  191. // CHECK:STDOUT: entry:
    192. 

  192. // CHECK:STDOUT:   call void @_CF.Main(ptr %return), !dbg !9
    193. 

  193. // CHECK:STDOUT:   ret void, !dbg !10
    194. 

  194. // CHECK:STDOUT: }
    195. 

  195. // CHECK:STDOUT:
    196. 

  196. // CHECK:STDOUT: ; Function Attrs: nounwind
    197. 

  197. // CHECK:STDOUT: define void @_CInitVar.Main() #0 !dbg !11 {
    198. 

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

  199. // CHECK:STDOUT:   %local.var = alloca {}, align 8, !dbg !12
    200. 

  200. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %local.var), !dbg !12
    201. 

  201. // CHECK:STDOUT:   call void @_CF.Main(ptr %local.var), !dbg !13
    202. 

  202. // CHECK:STDOUT:   call void @_CG.Main(), !dbg !14
    203. 

  203. // CHECK:STDOUT:   ret void, !dbg !15
    204. 

  204. // CHECK:STDOUT: }
    205. 

  205. // CHECK:STDOUT:
    206. 

  206. // CHECK:STDOUT: ; Function Attrs: nounwind
    207. 

  207. // CHECK:STDOUT: define void @_CInitLet.Main() #0 !dbg !16 {
    208. 

  208. // CHECK:STDOUT: entry:
    209. 

  209. // CHECK:STDOUT:   %.loc22_20.1.temp = alloca {}, align 8, !dbg !17
    210. 

  210. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc22_20.1.temp), !dbg !17
    211. 

  211. // CHECK:STDOUT:   call void @_CF.Main(ptr %.loc22_20.1.temp), !dbg !17
    212. 

  212. // CHECK:STDOUT:   call void @_CG.Main(), !dbg !18
    213. 

  213. // CHECK:STDOUT:   ret void, !dbg !19
    214. 

  214. // CHECK:STDOUT: }
    215. 

  215. // CHECK:STDOUT:
    216. 

  216. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    217. 

  217. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
    218. 

  218. // CHECK:STDOUT:
    219. 

  219. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    220. 

  220. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #2
    221. 

  221. // CHECK:STDOUT:
    222. 

  222. // CHECK:STDOUT: ; uselistorder directives
    223. 

  223. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
    224. 

  224. // CHECK:STDOUT:
    225. 

  225. // CHECK:STDOUT: attributes #0 = { nounwind }
    226. 

  226. // CHECK:STDOUT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    227. 

  227. // CHECK:STDOUT: attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    228. 

  228. // CHECK:STDOUT:
    229. 

  229. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    230. 

  230. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    231. 

  231. // CHECK:STDOUT:
    232. 

  232. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    233. 

  233. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    234. 

  234. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    235. 

  235. // CHECK:STDOUT: !3 = !DIFile(filename: "return_slot.carbon", directory: "")
    236. 

  236. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    237. 

  237. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    238. 

  238. // CHECK:STDOUT: !6 = !{}
    239. 

  239. // CHECK:STDOUT: !7 = !DILocation(line: 7, column: 3, scope: !4)
    240. 

  240. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "Forward", linkageName: "_CForward.Main", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    241. 

  241. // CHECK:STDOUT: !9 = !DILocation(line: 13, column: 10, scope: !8)
    242. 

  242. // CHECK:STDOUT: !10 = !DILocation(line: 13, column: 3, scope: !8)
    243. 

  243. // CHECK:STDOUT: !11 = distinct !DISubprogram(name: "InitVar", linkageName: "_CInitVar.Main", scope: null, file: !3, line: 16, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    244. 

  244. // CHECK:STDOUT: !12 = !DILocation(line: 17, column: 3, scope: !11)
    245. 

  245. // CHECK:STDOUT: !13 = !DILocation(line: 17, column: 18, scope: !11)
    246. 

  246. // CHECK:STDOUT: !14 = !DILocation(line: 18, column: 3, scope: !11)
    247. 

  247. // CHECK:STDOUT: !15 = !DILocation(line: 16, column: 1, scope: !11)
    248. 

  248. // CHECK:STDOUT: !16 = distinct !DISubprogram(name: "InitLet", linkageName: "_CInitLet.Main", scope: null, file: !3, line: 21, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    249. 

  249. // CHECK:STDOUT: !17 = !DILocation(line: 22, column: 18, scope: !16)
    250. 

  250. // CHECK:STDOUT: !18 = !DILocation(line: 23, column: 3, scope: !16)
    251. 

  251. // CHECK:STDOUT: !19 = !DILocation(line: 21, column: 1, scope: !16)
    252.