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carbon-lang
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carbon-lang
/
toolchain
/
lower
/
testdata
/
impl
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thunk.carbon

thunk.carbon 13 KB
История Исходник

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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/impl/thunk.carbon
    8. 

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

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

  10. 

  11. // --- thunk.carbon
    12. 

  12. 

  13. library "[[@TEST_NAME]]";
    14. 

  14. 

  15. class A { var a: i32; }
    16. 

  16. class B { var b: i32; }
    17. 

  17. class C { var c: i32; }
    18. 

  18. 

  19. impl A as Core.ImplicitAs(B) {
    20. 

  20.   fn Convert[self: A]() -> B { return {.b = self.a}; }
    21. 

  21. }
    22. 

  22. impl B as Core.ImplicitAs(C) {
    23. 

  23.   fn Convert[self: B]() -> C { return {.c = self.b}; }
    24. 

  24. }
    25. 

  25. 

  26. interface I {
    27. 

  27.   fn F(a: A) -> C;
    28. 

  28. }
    29. 

  29. 

  30. impl () as I {
    31. 

  31.   fn F(b: B) -> B { return {.b = b.b}; }
    32. 

  32. }
    33. 

  33. 

  34. fn Test(a: A) -> C {
    35. 

  35.   return ().(I.F)(a);
    36. 

  36. }
    37. 

  37. 

  38. // --- generic_thunk.carbon
    39. 

  39. 

  40. library "[[@TEST_NAME]]";
    41. 

  41. 

  42. class A {}
    43. 

  43. class B {
    44. 

  44.   impl as Core.ImplicitAs(A) {
    45. 

  45.     fn Convert[self: Self]() -> A { return {}; }
    46. 

  46.   }
    47. 

  47. }
    48. 

  48. 

  49. interface I(T:! type) {
    50. 

  50.   fn F[self: Self](x: B) -> A;
    51. 

  51. }
    52. 

  52. 

  53. class C(U:! type) {}
    54. 

  54. 

  55. impl forall [V:! type] C(V) as I(V) {
    56. 

  56.   fn F[self: Self](x: A) -> B { return {}; }
    57. 

  57. }
    58. 

  58. 

  59. fn Call(c: C(()), b: B) -> A {
    60. 

  60.   return c.(I(()).F)(b);
    61. 

  61. }
    62. 

  62. 

  63. fn CallGeneric[T:! I(())](c: T, b: B) -> A {
    64. 

  64.   return c.F(b);
    65. 

  65. }
    66. 

  66. 

  67. fn CallCallGeneric(c: C(()), b: B) -> A {
    68. 

  68.   return CallGeneric(c, b);
    69. 

  69. }
    70. 

  70. 

  71. // CHECK:STDOUT: ; ModuleID = 'thunk.carbon'
    72. 

  72. // CHECK:STDOUT: source_filename = "thunk.carbon"
    73. 

  73. // CHECK:STDOUT:
    74. 

  74. // CHECK:STDOUT: define void @"_CConvert.A.Main:ImplicitAs.Core"(ptr sret({ i32 }) %return, ptr %self) !dbg !4 {
    75. 

  75. // CHECK:STDOUT: entry:
    76. 

  76. // CHECK:STDOUT:   %.loc9_49.1.a = getelementptr inbounds nuw { i32 }, ptr %self, i32 0, i32 0, !dbg !7
    77. 

  77. // CHECK:STDOUT:   %.loc9_49.2 = load i32, ptr %.loc9_49.1.a, align 4, !dbg !7
    78. 

  78. // CHECK:STDOUT:   %.loc9_51.2.b = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !8
    79. 

  79. // CHECK:STDOUT:   store i32 %.loc9_49.2, ptr %.loc9_51.2.b, align 4, !dbg !8
    80. 

  80. // CHECK:STDOUT:   ret void, !dbg !9
    81. 

  81. // CHECK:STDOUT: }
    82. 

  82. // CHECK:STDOUT:
    83. 

  83. // CHECK:STDOUT: define void @"_CConvert.B.Main:ImplicitAs.Core"(ptr sret({ i32 }) %return, ptr %self) !dbg !10 {
    84. 

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

  85. // CHECK:STDOUT:   %.loc12_49.1.b = getelementptr inbounds nuw { i32 }, ptr %self, i32 0, i32 0, !dbg !11
    86. 

  86. // CHECK:STDOUT:   %.loc12_49.2 = load i32, ptr %.loc12_49.1.b, align 4, !dbg !11
    87. 

  87. // CHECK:STDOUT:   %.loc12_51.2.c = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !12
    88. 

  88. // CHECK:STDOUT:   store i32 %.loc12_49.2, ptr %.loc12_51.2.c, align 4, !dbg !12
    89. 

  89. // CHECK:STDOUT:   ret void, !dbg !13
    90. 

  90. // CHECK:STDOUT: }
    91. 

  91. // CHECK:STDOUT:
    92. 

  92. // CHECK:STDOUT: define void @"_CF.61ea2aba74ab3bf1:I.Main"(ptr sret({ i32 }) %return, ptr %b) !dbg !14 {
    93. 

  93. // CHECK:STDOUT: entry:
    94. 

  94. // CHECK:STDOUT:   %.loc20_35.1.b = getelementptr inbounds nuw { i32 }, ptr %b, i32 0, i32 0, !dbg !15
    95. 

  95. // CHECK:STDOUT:   %.loc20_35.2 = load i32, ptr %.loc20_35.1.b, align 4, !dbg !15
    96. 

  96. // CHECK:STDOUT:   %.loc20_37.2.b = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !16
    97. 

  97. // CHECK:STDOUT:   store i32 %.loc20_35.2, ptr %.loc20_37.2.b, align 4, !dbg !16
    98. 

  98. // CHECK:STDOUT:   ret void, !dbg !17
    99. 

  99. // CHECK:STDOUT: }
    100. 

  100. // CHECK:STDOUT:
    101. 

  101. // CHECK:STDOUT: define void @"_CF:thunk.61ea2aba74ab3bf1:I.Main"(ptr sret({ i32 }) %return, ptr %a) !dbg !18 {
    102. 

  102. // CHECK:STDOUT: entry:
    103. 

  103. // CHECK:STDOUT:   %.loc20_19.1.temp = alloca { i32 }, align 8, !dbg !19
    104. 

  104. // CHECK:STDOUT:   %.loc16_9.1.temp = alloca { i32 }, align 8, !dbg !20
    105. 

  105. // CHECK:STDOUT:   call void @"_CConvert.A.Main:ImplicitAs.Core"(ptr %.loc16_9.1.temp, ptr %a), !dbg !20
    106. 

  106. // CHECK:STDOUT:   call void @"_CF.61ea2aba74ab3bf1:I.Main"(ptr %.loc20_19.1.temp, ptr %.loc16_9.1.temp), !dbg !19
    107. 

  107. // CHECK:STDOUT:   %.loc20_19.2.temp = alloca { i32 }, align 8, !dbg !19
    108. 

  108. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc20_19.2.temp, ptr %.loc20_19.1.temp), !dbg !19
    109. 

  109. // CHECK:STDOUT:   ret void, !dbg !19
    110. 

  110. // CHECK:STDOUT: }
    111. 

  111. // CHECK:STDOUT:
    112. 

  112. // CHECK:STDOUT: define void @_CTest.Main(ptr sret({ i32 }) %return, ptr %a) !dbg !21 {
    113. 

  113. // CHECK:STDOUT: entry:
    114. 

  114. // CHECK:STDOUT:   %.loc24_20.1.temp = alloca { i32 }, align 8, !dbg !22
    115. 

  115. // CHECK:STDOUT:   %.loc24_20.2.temp = alloca { i32 }, align 8, !dbg !22
    116. 

  116. // CHECK:STDOUT:   %.loc24_19.1.temp = alloca { i32 }, align 8, !dbg !23
    117. 

  117. // CHECK:STDOUT:   call void @"_CConvert.A.Main:ImplicitAs.Core"(ptr %.loc24_19.1.temp, ptr %a), !dbg !23
    118. 

  118. // CHECK:STDOUT:   call void @"_CF.61ea2aba74ab3bf1:I.Main"(ptr %.loc24_20.2.temp, ptr %.loc24_19.1.temp), !dbg !22
    119. 

  119. // CHECK:STDOUT:   %.loc24_21.1.temp = alloca { i32 }, align 8, !dbg !24
    120. 

  120. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc24_21.1.temp, ptr %.loc24_20.2.temp), !dbg !24
    121. 

  121. // CHECK:STDOUT:   ret void, !dbg !24
    122. 

  122. // CHECK:STDOUT: }
    123. 

  123. // CHECK:STDOUT:
    124. 

  124. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    125. 

  125. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    126. 

  126. // CHECK:STDOUT:
    127. 

  127. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    128. 

  128. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    129. 

  129. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    130. 

  130. // CHECK:STDOUT: !3 = !DIFile(filename: "thunk.carbon", directory: "")
    131. 

  131. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.A.Main:ImplicitAs.Core", scope: null, file: !3, line: 9, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    132. 

  132. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    133. 

  133. // CHECK:STDOUT: !6 = !{}
    134. 

  134. // CHECK:STDOUT: !7 = !DILocation(line: 9, column: 45, scope: !4)
    135. 

  135. // CHECK:STDOUT: !8 = !DILocation(line: 9, column: 39, scope: !4)
    136. 

  136. // CHECK:STDOUT: !9 = !DILocation(line: 9, column: 32, scope: !4)
    137. 

  137. // CHECK:STDOUT: !10 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.B.Main:ImplicitAs.Core", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    138. 

  138. // CHECK:STDOUT: !11 = !DILocation(line: 12, column: 45, scope: !10)
    139. 

  139. // CHECK:STDOUT: !12 = !DILocation(line: 12, column: 39, scope: !10)
    140. 

  140. // CHECK:STDOUT: !13 = !DILocation(line: 12, column: 32, scope: !10)
    141. 

  141. // CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.61ea2aba74ab3bf1:I.Main", scope: null, file: !3, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    142. 

  142. // CHECK:STDOUT: !15 = !DILocation(line: 20, column: 34, scope: !14)
    143. 

  143. // CHECK:STDOUT: !16 = !DILocation(line: 20, column: 28, scope: !14)
    144. 

  144. // CHECK:STDOUT: !17 = !DILocation(line: 20, column: 21, scope: !14)
    145. 

  145. // CHECK:STDOUT: !18 = distinct !DISubprogram(name: "F", linkageName: "_CF:thunk.61ea2aba74ab3bf1:I.Main", scope: null, file: !3, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    146. 

  146. // CHECK:STDOUT: !19 = !DILocation(line: 20, column: 3, scope: !18)
    147. 

  147. // CHECK:STDOUT: !20 = !DILocation(line: 16, column: 8, scope: !18)
    148. 

  148. // CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Test", linkageName: "_CTest.Main", scope: null, file: !3, line: 23, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    149. 

  149. // CHECK:STDOUT: !22 = !DILocation(line: 24, column: 10, scope: !21)
    150. 

  150. // CHECK:STDOUT: !23 = !DILocation(line: 24, column: 19, scope: !21)
    151. 

  151. // CHECK:STDOUT: !24 = !DILocation(line: 24, column: 3, scope: !21)
    152. 

  152. // CHECK:STDOUT: ; ModuleID = 'generic_thunk.carbon'
    153. 

  153. // CHECK:STDOUT: source_filename = "generic_thunk.carbon"
    154. 

  154. // CHECK:STDOUT:
    155. 

  155. // CHECK:STDOUT: @A.val.loc7_46 = internal constant {} zeroinitializer
    156. 

  156. // CHECK:STDOUT: @B.val.loc18_42 = internal constant {} zeroinitializer
    157. 

  157. // CHECK:STDOUT:
    158. 

  158. // CHECK:STDOUT: define void @"_CConvert.B.Main:ImplicitAs.Core"(ptr sret({}) %return, ptr %self) !dbg !4 {
    159. 

  159. // CHECK:STDOUT: entry:
    160. 

  160. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 1 %return, ptr align 1 @A.val.loc7_46, i64 0, i1 false), !dbg !7
    161. 

  161. // CHECK:STDOUT:   ret void, !dbg !7
    162. 

  162. // CHECK:STDOUT: }
    163. 

  163. // CHECK:STDOUT:
    164. 

  164. // CHECK:STDOUT: define void @_CCall.Main(ptr sret({}) %return, ptr %c, ptr %b) !dbg !8 {
    165. 

  165. // CHECK:STDOUT: entry:
    166. 

  166. // CHECK:STDOUT:   %.loc22_23.1.temp = alloca {}, align 8, !dbg !9
    167. 

  167. // CHECK:STDOUT:   %.loc22_23.3.temp = alloca {}, align 8, !dbg !9
    168. 

  168. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc22_23.3.temp, ptr %b), !dbg !9
    169. 

  169. // CHECK:STDOUT:   %.loc22_23.7.temp = alloca {}, align 8, !dbg !9
    170. 

  170. // CHECK:STDOUT:   %.loc22_22.1.temp = alloca {}, align 8, !dbg !10
    171. 

  171. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc22_22.1.temp, ptr %b), !dbg !10
    172. 

  172. // CHECK:STDOUT:   call void @"_CF.C.Main:I.Main.e43630e9a6c38c3f"(ptr %.loc22_23.7.temp, ptr %c, ptr %.loc22_22.1.temp), !dbg !9
    173. 

  173. // CHECK:STDOUT:   %.loc22_24.1.temp = alloca {}, align 8, !dbg !11
    174. 

  174. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc22_24.1.temp, ptr %.loc22_23.7.temp), !dbg !11
    175. 

  175. // CHECK:STDOUT:   ret void, !dbg !11
    176. 

  176. // CHECK:STDOUT: }
    177. 

  177. // CHECK:STDOUT:
    178. 

  178. // CHECK:STDOUT: define void @_CCallCallGeneric.Main(ptr sret({}) %return, ptr %c, ptr %b) !dbg !12 {
    179. 

  179. // CHECK:STDOUT: entry:
    180. 

  180. // CHECK:STDOUT:   call void @_CCallGeneric.Main.9ef6968dffa77413(ptr %return, ptr %c, ptr %b), !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 nounwind willreturn memory(argmem: readwrite)
    185. 

  185. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #0
    186. 

  186. // CHECK:STDOUT:
    187. 

  187. // CHECK:STDOUT: define linkonce_odr void @"_CF.C.Main:I.Main.e43630e9a6c38c3f"(ptr sret({}) %return, ptr %self, ptr %x) !dbg !15 {
    188. 

  188. // CHECK:STDOUT: entry:
    189. 

  189. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 1 %return, ptr align 1 @B.val.loc18_42, i64 0, i1 false), !dbg !16
    190. 

  190. // CHECK:STDOUT:   ret void, !dbg !16
    191. 

  191. // CHECK:STDOUT: }
    192. 

  192. // CHECK:STDOUT:
    193. 

  193. // CHECK:STDOUT: define linkonce_odr void @_CCallGeneric.Main.9ef6968dffa77413(ptr sret({}) %return, ptr %c, ptr %b) !dbg !17 {
    194. 

  194. // CHECK:STDOUT: entry:
    195. 

  195. // CHECK:STDOUT:   call void @"_CF:thunk.C.Main:I.Main.e43630e9a6c38c3f"(ptr %return, ptr %c, ptr %b), !dbg !18
    196. 

  196. // CHECK:STDOUT:   ret void, !dbg !19
    197. 

  197. // CHECK:STDOUT: }
    198. 

  198. // CHECK:STDOUT:
    199. 

  199. // CHECK:STDOUT: define linkonce_odr void @"_CF:thunk.C.Main:I.Main.e43630e9a6c38c3f"(ptr sret({}) %return, ptr %self, ptr %x) !dbg !20 {
    200. 

  200. // CHECK:STDOUT: entry:
    201. 

  201. // CHECK:STDOUT:   %.loc18_31.2.temp = alloca {}, align 8, !dbg !21
    202. 

  202. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc18_31.2.temp, ptr %x), !dbg !21
    203. 

  203. // CHECK:STDOUT:   %.loc18_31.6.temp = alloca {}, align 8, !dbg !21
    204. 

  204. // CHECK:STDOUT:   %.loc12_21.1.temp = alloca {}, align 8, !dbg !22
    205. 

  205. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc12_21.1.temp, ptr %x), !dbg !22
    206. 

  206. // CHECK:STDOUT:   call void @"_CF.C.Main:I.Main.e43630e9a6c38c3f"(ptr %.loc18_31.6.temp, ptr %self, ptr %.loc12_21.1.temp), !dbg !21
    207. 

  207. // CHECK:STDOUT:   %.loc18_31.7.temp = alloca {}, align 8, !dbg !21
    208. 

  208. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc18_31.7.temp, ptr %.loc18_31.6.temp), !dbg !21
    209. 

  209. // CHECK:STDOUT:   ret void, !dbg !21
    210. 

  210. // CHECK:STDOUT: }
    211. 

  211. // CHECK:STDOUT:
    212. 

  212. // CHECK:STDOUT: attributes #0 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    213. 

  213. // CHECK:STDOUT:
    214. 

  214. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    215. 

  215. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    216. 

  216. // CHECK:STDOUT:
    217. 

  217. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    218. 

  218. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    219. 

  219. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    220. 

  220. // CHECK:STDOUT: !3 = !DIFile(filename: "generic_thunk.carbon", directory: "")
    221. 

  221. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.B.Main:ImplicitAs.Core", scope: null, file: !3, line: 7, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    222. 

  222. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    223. 

  223. // CHECK:STDOUT: !6 = !{}
    224. 

  224. // CHECK:STDOUT: !7 = !DILocation(line: 7, column: 37, scope: !4)
    225. 

  225. // CHECK:STDOUT: !8 = distinct !DISubprogram(name: "Call", linkageName: "_CCall.Main", scope: null, file: !3, line: 21, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    226. 

  226. // CHECK:STDOUT: !9 = !DILocation(line: 22, column: 10, scope: !8)
    227. 

  227. // CHECK:STDOUT: !10 = !DILocation(line: 22, column: 22, scope: !8)
    228. 

  228. // CHECK:STDOUT: !11 = !DILocation(line: 22, column: 3, scope: !8)
    229. 

  229. // CHECK:STDOUT: !12 = distinct !DISubprogram(name: "CallCallGeneric", linkageName: "_CCallCallGeneric.Main", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    230. 

  230. // CHECK:STDOUT: !13 = !DILocation(line: 30, column: 10, scope: !12)
    231. 

  231. // CHECK:STDOUT: !14 = !DILocation(line: 30, column: 3, scope: !12)
    232. 

  232. // CHECK:STDOUT: !15 = distinct !DISubprogram(name: "F", linkageName: "_CF.C.Main:I.Main.e43630e9a6c38c3f", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    233. 

  233. // CHECK:STDOUT: !16 = !DILocation(line: 18, column: 33, scope: !15)
    234. 

  234. // CHECK:STDOUT: !17 = distinct !DISubprogram(name: "CallGeneric", linkageName: "_CCallGeneric.Main.9ef6968dffa77413", scope: null, file: !3, line: 25, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    235. 

  235. // CHECK:STDOUT: !18 = !DILocation(line: 26, column: 10, scope: !17)
    236. 

  236. // CHECK:STDOUT: !19 = !DILocation(line: 26, column: 3, scope: !17)
    237. 

  237. // CHECK:STDOUT: !20 = distinct !DISubprogram(name: "F", linkageName: "_CF:thunk.C.Main:I.Main.e43630e9a6c38c3f", scope: null, file: !3, line: 18, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    238. 

  238. // CHECK:STDOUT: !21 = !DILocation(line: 18, column: 3, scope: !20)
    239. 

  239. // CHECK:STDOUT: !22 = !DILocation(line: 12, column: 20, scope: !20)
    240.