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virtual.carbon

virtual.carbon 12 KB
Riwayat Mentahan

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  1. // Part of the Carbon Language project, under the Apache License v2.0 with LLVM
    2. 

  2. // Exceptions. See /LICENSE for license information.
    3. 

  3. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
    4. 

  4. //
    5. 

  5. // AUTOUPDATE
    6. 

  6. // TIP: To test this file alone, run:
    7. 

  7. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/class/virtual.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/class/virtual.carbon
    10. 

  10. 

  11. // --- classes.carbon
    12. 

  12. 

  13. package Classes;
    14. 

  14. 

  15. base class Base {
    16. 

  16. }
    17. 

  17. 

  18. base class Intermediate {
    19. 

  19.   extend base: Base;
    20. 

  20.   virtual fn Fn[self: Self]() { }
    21. 

  21. }
    22. 

  22. 

  23. class Derived {
    24. 

  24.   extend base: Intermediate;
    25. 

  25.   impl fn Fn[self: Self]() { }
    26. 

  26. }
    27. 

  27. 

  28. // --- create.carbon
    29. 

  29. 

  30. package Create;
    31. 

  31. 

  32. import Classes;
    33. 

  33. 

  34. fn Create() {
    35. 

  35.   var b: Classes.Base;
    36. 

  36.   var i: Classes.Intermediate;
    37. 

  37.   var d: Classes.Derived;
    38. 

  38. }
    39. 

  39. 

  40. fn Use(v: Classes.Intermediate*) {
    41. 

  41.   v->Fn();
    42. 

  42. }
    43. 

  43. 

  44. // --- member_init.carbon
    45. 

  45. 

  46. package MemberInit;
    47. 

  47. 

  48. base class Base {
    49. 

  49.   var m: i32;
    50. 

  50.   virtual fn Fn[self: Self]() { }
    51. 

  51. }
    52. 

  52. 

  53. fn Fn() {
    54. 

  54.   var i: i32 = 3;
    55. 

  55.   var v: Base = {.m = i};
    56. 

  56.   v.m = 5;
    57. 

  57.   var u: Base = {.m = 3};
    58. 

  58. }
    59. 

  59. 

  60. // --- member_brace_init.carbon
    61. 

  61. 

  62. library "[[@TEST_NAME]]";
    63. 

  63. 

  64. base class Base {
    65. 

  65.   virtual fn F[self: Self]();
    66. 

  66. }
    67. 

  67. 

  68. class Derived {
    69. 

  69.   extend base: Base;
    70. 

  70. }
    71. 

  71. 

  72. fn Use() {
    73. 

  73.   var v : Derived = {.base = {}};
    74. 

  74. }
    75. 

  75. 

  76. 

  77. // CHECK:STDOUT: ; ModuleID = 'classes.carbon'
    78. 

  78. // CHECK:STDOUT: source_filename = "classes.carbon"
    79. 

  79. // CHECK:STDOUT:
    80. 

  80. // CHECK:STDOUT: @"_CIntermediate.Classes.$vtable" = unnamed_addr constant [1 x i32] [i32 trunc (i64 sub (i64 ptrtoint (ptr @_CFn.Intermediate.Classes to i64), i64 ptrtoint (ptr @"_CIntermediate.Classes.$vtable" to i64)) to i32)]
    81. 

  81. // CHECK:STDOUT: @"_CDerived.Classes.$vtable" = unnamed_addr constant [1 x i32] [i32 trunc (i64 sub (i64 ptrtoint (ptr @_CFn.Derived.Classes to i64), i64 ptrtoint (ptr @"_CDerived.Classes.$vtable" to i64)) to i32)]
    82. 

  82. // CHECK:STDOUT:
    83. 

  83. // CHECK:STDOUT: define void @_CFn.Intermediate.Classes(ptr %self) !dbg !4 {
    84. 

  84. // CHECK:STDOUT: entry:
    85. 

  85. // CHECK:STDOUT:   ret void, !dbg !7
    86. 

  86. // CHECK:STDOUT: }
    87. 

  87. // CHECK:STDOUT:
    88. 

  88. // CHECK:STDOUT: define void @_CFn.Derived.Classes(ptr %self) !dbg !8 {
    89. 

  89. // CHECK:STDOUT: entry:
    90. 

  90. // CHECK:STDOUT:   ret void, !dbg !9
    91. 

  91. // CHECK:STDOUT: }
    92. 

  92. // CHECK:STDOUT:
    93. 

  93. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    94. 

  94. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    95. 

  95. // CHECK:STDOUT:
    96. 

  96. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    97. 

  97. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    98. 

  98. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    99. 

  99. // CHECK:STDOUT: !3 = !DIFile(filename: "classes.carbon", directory: "")
    100. 

  100. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Fn", linkageName: "_CFn.Intermediate.Classes", scope: null, file: !3, line: 9, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    101. 

  101. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    102. 

  102. // CHECK:STDOUT: !6 = !{}
    103. 

  103. // CHECK:STDOUT: !7 = !DILocation(line: 9, column: 3, scope: !4)
    104. 

  104. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "Fn", linkageName: "_CFn.Derived.Classes", scope: null, file: !3, line: 14, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    105. 

  105. // CHECK:STDOUT: !9 = !DILocation(line: 14, column: 3, scope: !8)
    106. 

  106. // CHECK:STDOUT: ; ModuleID = 'create.carbon'
    107. 

  107. // CHECK:STDOUT: source_filename = "create.carbon"
    108. 

  108. // CHECK:STDOUT:
    109. 

  109. // CHECK:STDOUT: define void @_CCreate.Create() !dbg !4 {
    110. 

  110. // CHECK:STDOUT: entry:
    111. 

  111. // CHECK:STDOUT:   %b.var = alloca {}, align 8, !dbg !7
    112. 

  112. // CHECK:STDOUT:   %i.var = alloca { ptr, {} }, align 8, !dbg !7
    113. 

  113. // CHECK:STDOUT:   %d.var = alloca { { ptr, {} } }, align 8, !dbg !7
    114. 

  114. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 0, ptr %b.var), !dbg !7
    115. 

  115. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 8, ptr %i.var), !dbg !7
    116. 

  116. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 8, ptr %d.var), !dbg !7
    117. 

  117. // CHECK:STDOUT:   ret void, !dbg !8
    118. 

  118. // CHECK:STDOUT: }
    119. 

  119. // CHECK:STDOUT:
    120. 

  120. // CHECK:STDOUT: define void @_CUse.Create(ptr %v) !dbg !9 {
    121. 

  121. // CHECK:STDOUT: entry:
    122. 

  122. // CHECK:STDOUT:   call void @_CFn.Intermediate.Classes(ptr %v), !dbg !10
    123. 

  123. // CHECK:STDOUT:   ret void, !dbg !11
    124. 

  124. // CHECK:STDOUT: }
    125. 

  125. // CHECK:STDOUT:
    126. 

  126. // CHECK:STDOUT: declare void @_CFn.Intermediate.Classes(ptr)
    127. 

  127. // CHECK:STDOUT:
    128. 

  128. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    129. 

  129. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(i64 immarg, ptr captures(none)) #0
    130. 

  130. // CHECK:STDOUT:
    131. 

  131. // CHECK:STDOUT: ; uselistorder directives
    132. 

  132. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
    133. 

  133. // CHECK:STDOUT:
    134. 

  134. // CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    135. 

  135. // CHECK:STDOUT:
    136. 

  136. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    137. 

  137. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    138. 

  138. // CHECK:STDOUT:
    139. 

  139. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    140. 

  140. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    141. 

  141. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    142. 

  142. // CHECK:STDOUT: !3 = !DIFile(filename: "create.carbon", directory: "")
    143. 

  143. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Create", linkageName: "_CCreate.Create", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    144. 

  144. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    145. 

  145. // CHECK:STDOUT: !6 = !{}
    146. 

  146. // CHECK:STDOUT: !7 = !DILocation(line: 7, column: 3, scope: !4)
    147. 

  147. // CHECK:STDOUT: !8 = !DILocation(line: 6, column: 1, scope: !4)
    148. 

  148. // CHECK:STDOUT: !9 = distinct !DISubprogram(name: "Use", linkageName: "_CUse.Create", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    149. 

  149. // CHECK:STDOUT: !10 = !DILocation(line: 13, column: 3, scope: !9)
    150. 

  150. // CHECK:STDOUT: !11 = !DILocation(line: 12, column: 1, scope: !9)
    151. 

  151. // CHECK:STDOUT: ; ModuleID = 'member_init.carbon'
    152. 

  152. // CHECK:STDOUT: source_filename = "member_init.carbon"
    153. 

  153. // CHECK:STDOUT:
    154. 

  154. // CHECK:STDOUT: @"_CBase.MemberInit.$vtable" = unnamed_addr constant [1 x i32] [i32 trunc (i64 sub (i64 ptrtoint (ptr @_CFn.Base.MemberInit to i64), i64 ptrtoint (ptr @"_CBase.MemberInit.$vtable" to i64)) to i32)]
    155. 

  155. // CHECK:STDOUT:
    156. 

  156. // CHECK:STDOUT: define void @_CFn.Base.MemberInit(ptr %self) !dbg !4 {
    157. 

  157. // CHECK:STDOUT: entry:
    158. 

  158. // CHECK:STDOUT:   ret void, !dbg !7
    159. 

  159. // CHECK:STDOUT: }
    160. 

  160. // CHECK:STDOUT:
    161. 

  161. // CHECK:STDOUT: define void @_CFn.MemberInit() !dbg !8 {
    162. 

  162. // CHECK:STDOUT: entry:
    163. 

  163. // CHECK:STDOUT:   %i.var = alloca i32, align 4, !dbg !9
    164. 

  164. // CHECK:STDOUT:   %v.var = alloca { ptr, i32 }, align 8, !dbg !9
    165. 

  165. // CHECK:STDOUT:   %u.var = alloca { ptr, i32 }, align 8, !dbg !9
    166. 

  166. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 4, ptr %i.var), !dbg !9
    167. 

  167. // CHECK:STDOUT:   store i32 3, ptr %i.var, align 4, !dbg !9
    168. 

  168. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 16, ptr %v.var), !dbg !9
    169. 

  169. // CHECK:STDOUT:   %.loc11_24.2.vptr = getelementptr inbounds nuw { ptr, i32 }, ptr %v.var, i32 0, i32 0, !dbg !10
    170. 

  170. // CHECK:STDOUT:   store ptr null, ptr %.loc11_24.2.vptr, align 8, !dbg !10
    171. 

  171. // CHECK:STDOUT:   %.loc11_23 = load i32, ptr %i.var, align 4, !dbg !11
    172. 

  172. // CHECK:STDOUT:   %.loc11_24.5.m = getelementptr inbounds nuw { ptr, i32 }, ptr %v.var, i32 0, i32 1, !dbg !10
    173. 

  173. // CHECK:STDOUT:   store i32 %.loc11_23, ptr %.loc11_24.5.m, align 4, !dbg !10
    174. 

  174. // CHECK:STDOUT:   %.loc12_4.m = getelementptr inbounds nuw { ptr, i32 }, ptr %v.var, i32 0, i32 1, !dbg !12
    175. 

  175. // CHECK:STDOUT:   store i32 5, ptr %.loc12_4.m, align 4, !dbg !12
    176. 

  176. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 16, ptr %u.var), !dbg !9
    177. 

  177. // CHECK:STDOUT:   %.loc13_24.2.vptr = getelementptr inbounds nuw { ptr, i32 }, ptr %u.var, i32 0, i32 0, !dbg !13
    178. 

  178. // CHECK:STDOUT:   store ptr null, ptr %.loc13_24.2.vptr, align 8, !dbg !13
    179. 

  179. // CHECK:STDOUT:   %.loc13_24.6.m = getelementptr inbounds nuw { ptr, i32 }, ptr %u.var, i32 0, i32 1, !dbg !13
    180. 

  180. // CHECK:STDOUT:   store i32 3, ptr %.loc13_24.6.m, align 4, !dbg !13
    181. 

  181. // CHECK:STDOUT:   ret void, !dbg !14
    182. 

  182. // CHECK:STDOUT: }
    183. 

  183. // CHECK:STDOUT:
    184. 

  184. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    185. 

  185. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(i64 immarg, ptr captures(none)) #0
    186. 

  186. // CHECK:STDOUT:
    187. 

  187. // CHECK:STDOUT: ; uselistorder directives
    188. 

  188. // CHECK:STDOUT: uselistorder i32 1, { 0, 2, 3, 1, 4, 5 }
    189. 

  189. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
    190. 

  190. // CHECK:STDOUT:
    191. 

  191. // CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    192. 

  192. // CHECK:STDOUT:
    193. 

  193. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    194. 

  194. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    195. 

  195. // CHECK:STDOUT:
    196. 

  196. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    197. 

  197. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    198. 

  198. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    199. 

  199. // CHECK:STDOUT: !3 = !DIFile(filename: "member_init.carbon", directory: "")
    200. 

  200. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Fn", linkageName: "_CFn.Base.MemberInit", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    201. 

  201. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    202. 

  202. // CHECK:STDOUT: !6 = !{}
    203. 

  203. // CHECK:STDOUT: !7 = !DILocation(line: 6, column: 3, scope: !4)
    204. 

  204. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "Fn", linkageName: "_CFn.MemberInit", scope: null, file: !3, line: 9, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    205. 

  205. // CHECK:STDOUT: !9 = !DILocation(line: 10, column: 3, scope: !8)
    206. 

  206. // CHECK:STDOUT: !10 = !DILocation(line: 11, column: 17, scope: !8)
    207. 

  207. // CHECK:STDOUT: !11 = !DILocation(line: 11, column: 23, scope: !8)
    208. 

  208. // CHECK:STDOUT: !12 = !DILocation(line: 12, column: 3, scope: !8)
    209. 

  209. // CHECK:STDOUT: !13 = !DILocation(line: 13, column: 17, scope: !8)
    210. 

  210. // CHECK:STDOUT: !14 = !DILocation(line: 9, column: 1, scope: !8)
    211. 

  211. // CHECK:STDOUT: ; ModuleID = 'member_brace_init.carbon'
    212. 

  212. // CHECK:STDOUT: source_filename = "member_brace_init.carbon"
    213. 

  213. // CHECK:STDOUT:
    214. 

  214. // CHECK:STDOUT: @"_CBase.Main.$vtable" = unnamed_addr constant [1 x i32] [i32 trunc (i64 sub (i64 ptrtoint (ptr @_CF.Base.Main to i64), i64 ptrtoint (ptr @"_CBase.Main.$vtable" to i64)) to i32)]
    215. 

  215. // CHECK:STDOUT: @"_CDerived.Main.$vtable" = unnamed_addr constant [1 x i32] [i32 trunc (i64 sub (i64 ptrtoint (ptr @_CF.Base.Main to i64), i64 ptrtoint (ptr @"_CDerived.Main.$vtable" to i64)) to i32)]
    216. 

  216. // CHECK:STDOUT:
    217. 

  217. // CHECK:STDOUT: declare void @_CF.Base.Main(ptr)
    218. 

  218. // CHECK:STDOUT:
    219. 

  219. // CHECK:STDOUT: define void @_CUse.Main() !dbg !4 {
    220. 

  220. // CHECK:STDOUT: entry:
    221. 

  221. // CHECK:STDOUT:   %v.var = alloca { { ptr } }, align 8, !dbg !7
    222. 

  222. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 8, ptr %v.var), !dbg !7
    223. 

  223. // CHECK:STDOUT:   %.loc13_32.2.base = getelementptr inbounds nuw { { ptr } }, ptr %v.var, i32 0, i32 0, !dbg !8
    224. 

  224. // CHECK:STDOUT:   %.loc13_31.2.vptr = getelementptr inbounds nuw { ptr }, ptr %.loc13_32.2.base, i32 0, i32 0, !dbg !9
    225. 

  225. // CHECK:STDOUT:   store ptr null, ptr %.loc13_31.2.vptr, align 8, !dbg !9
    226. 

  226. // CHECK:STDOUT:   ret void, !dbg !10
    227. 

  227. // CHECK:STDOUT: }
    228. 

  228. // CHECK:STDOUT:
    229. 

  229. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    230. 

  230. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(i64 immarg, ptr captures(none)) #0
    231. 

  231. // CHECK:STDOUT:
    232. 

  232. // CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    233. 

  233. // CHECK:STDOUT:
    234. 

  234. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    235. 

  235. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    236. 

  236. // CHECK:STDOUT:
    237. 

  237. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    238. 

  238. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    239. 

  239. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    240. 

  240. // CHECK:STDOUT: !3 = !DIFile(filename: "member_brace_init.carbon", directory: "")
    241. 

  241. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Use", linkageName: "_CUse.Main", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    242. 

  242. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    243. 

  243. // CHECK:STDOUT: !6 = !{}
    244. 

  244. // CHECK:STDOUT: !7 = !DILocation(line: 13, column: 3, scope: !4)
    245. 

  245. // CHECK:STDOUT: !8 = !DILocation(line: 13, column: 21, scope: !4)
    246. 

  246. // CHECK:STDOUT: !9 = !DILocation(line: 13, column: 30, scope: !4)
    247. 

  247. // CHECK:STDOUT: !10 = !DILocation(line: 12, column: 1, scope: !4)
    248.