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method.carbon

method.carbon 15 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. // INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
    6. 

  6. // EXTRA-ARGS: --clang-arg=-std=c++26
    7. 

  7. //
    8. 

  8. // AUTOUPDATE
    9. 

  9. // TIP: To test this file alone, run:
    10. 

  10. // TIP:   bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/method.carbon
    11. 

  11. // TIP: To dump output, run:
    12. 

  12. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/method.carbon
    13. 

  13. 

  14. // --- methods.h
    15. 

  15. 

  16. struct Base {
    17. 

  17.   virtual void virt0();
    18. 

  18. };
    19. 

  19. 

  20. struct A: Base {
    21. 

  21.   int by_val() const { return n; }
    22. 

  22.   int by_ref() { return n; }
    23. 

  23.   virtual void virt1();
    24. 

  24.   int n;
    25. 

  25. };
    26. 

  26. 

  27. // --- call_by_val.carbon
    28. 

  28. 

  29. library "[[@TEST_NAME]]";
    30. 

  30. 

  31. import Cpp library "methods.h";
    32. 

  32. 

  33. fn UseVal(a: Cpp.A) -> i32 {
    34. 

  34.   return a.by_val();
    35. 

  35. }
    36. 

  36. 

  37. // --- call_by_ref.carbon
    38. 

  38. 

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

  40. 

  41. import Cpp library "methods.h";
    42. 

  42. 

  43. fn UseVal(a: Cpp.A*) -> i32 {
    44. 

  44.   return a->by_ref();
    45. 

  45. }
    46. 

  46. 

  47. // --- call_virtual.carbon
    48. 

  48. 

  49. library "[[@TEST_NAME]]";
    50. 

  50. 

  51. import Cpp library "methods.h";
    52. 

  52. 

  53. fn UseVal(a: Cpp.A*) {
    54. 

  54.   a->virt0();
    55. 

  55.   a->virt1();
    56. 

  56. }
    57. 

  57. 

  58. // --- thunk.h
    59. 

  59. 

  60. struct NeedThunk {
    61. 

  61.   void Implicit(signed char c) const;
    62. 

  62.   void Explicit(this NeedThunk, signed char c);
    63. 

  63. };
    64. 

  64. 

  65. // --- call_thunk.carbon
    66. 

  66. 

  67. library "[[@TEST_NAME]]";
    68. 

  68. 

  69. import Cpp library "thunk.h";
    70. 

  70. 

  71. fn Call(n: Cpp.NeedThunk) {
    72. 

  72.   n.Implicit(1);
    73. 

  73.   n.Explicit(1);
    74. 

  74. }
    75. 

  75. 

  76. // CHECK:STDOUT: ; ModuleID = 'call_by_val.carbon'
    77. 

  77. // CHECK:STDOUT: source_filename = "call_by_val.carbon"
    78. 

  78. // CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
    79. 

  79. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    80. 

  80. // CHECK:STDOUT:
    81. 

  81. // CHECK:STDOUT: %struct.A = type <{ %struct.Base, i32, [4 x i8] }>
    82. 

  82. // CHECK:STDOUT: %struct.Base = type { ptr }
    83. 

  83. // CHECK:STDOUT:
    84. 

  84. // CHECK:STDOUT: $_ZNK1A6by_valEv = comdat any
    85. 

  85. // CHECK:STDOUT:
    86. 

  86. // CHECK:STDOUT: define i32 @_CUseVal.Main(ptr %a) !dbg !7 {
    87. 

  87. // CHECK:STDOUT: entry:
    88. 

  88. // CHECK:STDOUT:   %by_val__carbon_thunk.call = call i32 @_ZNK1A6by_valEv.carbon_thunk(ptr %a), !dbg !10
    89. 

  89. // CHECK:STDOUT:   ret i32 %by_val__carbon_thunk.call, !dbg !11
    90. 

  90. // CHECK:STDOUT: }
    91. 

  91. // CHECK:STDOUT:
    92. 

  92. // CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
    93. 

  93. // CHECK:STDOUT: define dso_local i32 @_ZNK1A6by_valEv.carbon_thunk(ptr %this) #0 {
    94. 

  94. // CHECK:STDOUT: entry:
    95. 

  95. // CHECK:STDOUT:   %this.addr = alloca ptr, align 8
    96. 

  96. // CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8
    97. 

  97. // CHECK:STDOUT:   %0 = load ptr, ptr %this.addr, align 8
    98. 

  98. // CHECK:STDOUT:   %call = call i32 @_ZNK1A6by_valEv(ptr nonnull align 8 dereferenceable(12) %0)
    99. 

  99. // CHECK:STDOUT:   ret i32 %call
    100. 

  100. // CHECK:STDOUT: }
    101. 

  101. // CHECK:STDOUT:
    102. 

  102. // CHECK:STDOUT: ; Function Attrs: mustprogress noinline nounwind optnone
    103. 

  103. // CHECK:STDOUT: define linkonce_odr dso_local i32 @_ZNK1A6by_valEv(ptr nonnull align 8 dereferenceable(12) %this) #1 comdat align 2 {
    104. 

  104. // CHECK:STDOUT: entry:
    105. 

  105. // CHECK:STDOUT:   %this.addr = alloca ptr, align 8
    106. 

  106. // CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8
    107. 

  107. // CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
    108. 

  108. // CHECK:STDOUT:   %n = getelementptr inbounds nuw %struct.A, ptr %this1, i32 0, i32 1
    109. 

  109. // CHECK:STDOUT:   %0 = load i32, ptr %n, align 8
    110. 

  110. // CHECK:STDOUT:   ret i32 %0
    111. 

  111. // CHECK:STDOUT: }
    112. 

  112. // CHECK:STDOUT:
    113. 

  113. // CHECK:STDOUT: attributes #0 = { alwaysinline mustprogress "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
    114. 

  114. // CHECK:STDOUT: attributes #1 = { mustprogress noinline nounwind optnone "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    117. 

  117. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    118. 

  118. // CHECK:STDOUT:
    119. 

  119. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    120. 

  120. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    121. 

  121. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    122. 

  122. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    123. 

  123. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    124. 

  124. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    125. 

  125. // CHECK:STDOUT: !6 = !DIFile(filename: "call_by_val.carbon", directory: "")
    126. 

  126. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "UseVal", linkageName: "_CUseVal.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    127. 

  127. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    128. 

  128. // CHECK:STDOUT: !9 = !{}
    129. 

  129. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 10, scope: !7)
    130. 

  130. // CHECK:STDOUT: !11 = !DILocation(line: 7, column: 3, scope: !7)
    131. 

  131. // CHECK:STDOUT: ; ModuleID = 'call_by_ref.carbon'
    132. 

  132. // CHECK:STDOUT: source_filename = "call_by_ref.carbon"
    133. 

  133. // CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
    134. 

  134. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    135. 

  135. // CHECK:STDOUT:
    136. 

  136. // CHECK:STDOUT: %struct.A = type <{ %struct.Base, i32, [4 x i8] }>
    137. 

  137. // CHECK:STDOUT: %struct.Base = type { ptr }
    138. 

  138. // CHECK:STDOUT:
    139. 

  139. // CHECK:STDOUT: $_ZN1A6by_refEv = comdat any
    140. 

  140. // CHECK:STDOUT:
    141. 

  141. // CHECK:STDOUT: define i32 @_CUseVal.Main(ptr %a) !dbg !7 {
    142. 

  142. // CHECK:STDOUT: entry:
    143. 

  143. // CHECK:STDOUT:   %A.by_ref.call = call i32 @_ZN1A6by_refEv(ptr %a), !dbg !10
    144. 

  144. // CHECK:STDOUT:   ret i32 %A.by_ref.call, !dbg !11
    145. 

  145. // CHECK:STDOUT: }
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: ; Function Attrs: mustprogress noinline nounwind optnone
    148. 

  148. // CHECK:STDOUT: define linkonce_odr dso_local i32 @_ZN1A6by_refEv(ptr nonnull align 8 dereferenceable(12) %this) #0 comdat align 2 {
    149. 

  149. // CHECK:STDOUT: entry:
    150. 

  150. // CHECK:STDOUT:   %this.addr = alloca ptr, align 8
    151. 

  151. // CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8
    152. 

  152. // CHECK:STDOUT:   %this1 = load ptr, ptr %this.addr, align 8
    153. 

  153. // CHECK:STDOUT:   %n = getelementptr inbounds nuw %struct.A, ptr %this1, i32 0, i32 1
    154. 

  154. // CHECK:STDOUT:   %0 = load i32, ptr %n, align 8
    155. 

  155. // CHECK:STDOUT:   ret i32 %0
    156. 

  156. // CHECK:STDOUT: }
    157. 

  157. // CHECK:STDOUT:
    158. 

  158. // CHECK:STDOUT: attributes #0 = { mustprogress noinline nounwind optnone "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
    159. 

  159. // CHECK:STDOUT:
    160. 

  160. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    161. 

  161. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    162. 

  162. // CHECK:STDOUT:
    163. 

  163. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    164. 

  164. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    165. 

  165. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    166. 

  166. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    167. 

  167. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    168. 

  168. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    169. 

  169. // CHECK:STDOUT: !6 = !DIFile(filename: "call_by_ref.carbon", directory: "")
    170. 

  170. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "UseVal", linkageName: "_CUseVal.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    171. 

  171. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    172. 

  172. // CHECK:STDOUT: !9 = !{}
    173. 

  173. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 10, scope: !7)
    174. 

  174. // CHECK:STDOUT: !11 = !DILocation(line: 7, column: 3, scope: !7)
    175. 

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

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

  177. // CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
    178. 

  178. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    179. 

  179. // CHECK:STDOUT:
    180. 

  180. // CHECK:STDOUT: define void @_CUseVal.Main(ptr %a) !dbg !7 {
    181. 

  181. // CHECK:STDOUT: entry:
    182. 

  182. // CHECK:STDOUT:   %.loc7_4.3.base = getelementptr inbounds nuw [16 x i8], ptr %a, i32 0, i32 0, !dbg !10
    183. 

  183. // CHECK:STDOUT:   %Base.virt0.call.vtable = load ptr, ptr %.loc7_4.3.base, align 8, !dbg !10
    184. 

  184. // CHECK:STDOUT:   %Base.virt0.call = getelementptr ptr, ptr %Base.virt0.call.vtable, i32 0, !dbg !10
    185. 

  185. // CHECK:STDOUT:   %Base.virt0.call.memptr.virtualfn = load ptr, ptr %Base.virt0.call, align 8, !dbg !10
    186. 

  186. // CHECK:STDOUT:   call void %Base.virt0.call.memptr.virtualfn(ptr %.loc7_4.3.base), !dbg !10
    187. 

  187. // CHECK:STDOUT:   %A.virt1.call.vtable = load ptr, ptr %a, align 8, !dbg !11
    188. 

  188. // CHECK:STDOUT:   %A.virt1.call = getelementptr ptr, ptr %A.virt1.call.vtable, i32 1, !dbg !11
    189. 

  189. // CHECK:STDOUT:   %A.virt1.call.memptr.virtualfn = load ptr, ptr %A.virt1.call, align 8, !dbg !11
    190. 

  190. // CHECK:STDOUT:   call void %A.virt1.call.memptr.virtualfn(ptr %a), !dbg !11
    191. 

  191. // CHECK:STDOUT:   ret void, !dbg !12
    192. 

  192. // CHECK:STDOUT: }
    193. 

  193. // CHECK:STDOUT:
    194. 

  194. // CHECK:STDOUT: declare void @_ZN4Base5virt0Ev(ptr)
    195. 

  195. // CHECK:STDOUT:
    196. 

  196. // CHECK:STDOUT: declare void @_ZN1A5virt1Ev(ptr)
    197. 

  197. // CHECK:STDOUT:
    198. 

  198. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    199. 

  199. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    200. 

  200. // CHECK:STDOUT:
    201. 

  201. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    202. 

  202. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    203. 

  203. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    204. 

  204. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    205. 

  205. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    206. 

  206. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    207. 

  207. // CHECK:STDOUT: !6 = !DIFile(filename: "call_virtual.carbon", directory: "")
    208. 

  208. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "UseVal", linkageName: "_CUseVal.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    209. 

  209. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    210. 

  210. // CHECK:STDOUT: !9 = !{}
    211. 

  211. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 3, scope: !7)
    212. 

  212. // CHECK:STDOUT: !11 = !DILocation(line: 8, column: 3, scope: !7)
    213. 

  213. // CHECK:STDOUT: !12 = !DILocation(line: 6, column: 1, scope: !7)
    214. 

  214. // CHECK:STDOUT: ; ModuleID = 'call_thunk.carbon'
    215. 

  215. // CHECK:STDOUT: source_filename = "call_thunk.carbon"
    216. 

  216. // CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
    217. 

  217. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    218. 

  218. // CHECK:STDOUT:
    219. 

  219. // CHECK:STDOUT: %struct.NeedThunk = type { i8 }
    220. 

  220. // CHECK:STDOUT:
    221. 

  221. // CHECK:STDOUT: define void @_CCall.Main(ptr %n) !dbg !7 {
    222. 

  222. // CHECK:STDOUT: entry:
    223. 

  223. // CHECK:STDOUT:   %.loc7_14.3.temp = alloca i8, align 1, !dbg !10
    224. 

  224. // CHECK:STDOUT:   %.loc8_14.3.temp = alloca i8, align 1, !dbg !11
    225. 

  225. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc7_14.3.temp), !dbg !10
    226. 

  226. // CHECK:STDOUT:   store i8 1, ptr %.loc7_14.3.temp, align 1, !dbg !10
    227. 

  227. // CHECK:STDOUT:   call void @_ZNK9NeedThunk8ImplicitEa.carbon_thunk(ptr %n, ptr %.loc7_14.3.temp), !dbg !12
    228. 

  228. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc8_14.3.temp), !dbg !11
    229. 

  229. // CHECK:STDOUT:   store i8 1, ptr %.loc8_14.3.temp, align 1, !dbg !11
    230. 

  230. // CHECK:STDOUT:   call void @_ZNH9NeedThunk8ExplicitES_a.carbon_thunk(ptr %n, ptr %.loc8_14.3.temp), !dbg !13
    231. 

  231. // CHECK:STDOUT:   ret void, !dbg !14
    232. 

  232. // CHECK:STDOUT: }
    233. 

  233. // CHECK:STDOUT:
    234. 

  234. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    235. 

  235. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #0
    236. 

  236. // CHECK:STDOUT:
    237. 

  237. // CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
    238. 

  238. // CHECK:STDOUT: define dso_local void @_ZNK9NeedThunk8ImplicitEa.carbon_thunk(ptr %this, ptr %c) #1 {
    239. 

  239. // CHECK:STDOUT: entry:
    240. 

  240. // CHECK:STDOUT:   %this.addr = alloca ptr, align 8
    241. 

  241. // CHECK:STDOUT:   %c.addr = alloca ptr, align 8
    242. 

  242. // CHECK:STDOUT:   store ptr %this, ptr %this.addr, align 8
    243. 

  243. // CHECK:STDOUT:   store ptr %c, ptr %c.addr, align 8
    244. 

  244. // CHECK:STDOUT:   %0 = load ptr, ptr %this.addr, align 8
    245. 

  245. // CHECK:STDOUT:   %1 = load ptr, ptr %c.addr, align 8
    246. 

  246. // CHECK:STDOUT:   %2 = load i8, ptr %1, align 1
    247. 

  247. // CHECK:STDOUT:   call void @_ZNK9NeedThunk8ImplicitEa(ptr nonnull align 1 dereferenceable(1) %0, i8 signext %2)
    248. 

  248. // CHECK:STDOUT:   ret void
    249. 

  249. // CHECK:STDOUT: }
    250. 

  250. // CHECK:STDOUT:
    251. 

  251. // CHECK:STDOUT: declare void @_ZNK9NeedThunk8ImplicitEa(ptr nonnull align 1 dereferenceable(1), i8 signext) #2
    252. 

  252. // CHECK:STDOUT:
    253. 

  253. // CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
    254. 

  254. // CHECK:STDOUT: define dso_local void @_ZNH9NeedThunk8ExplicitES_a.carbon_thunk(ptr %0, ptr %c) #1 {
    255. 

  255. // CHECK:STDOUT: entry:
    256. 

  256. // CHECK:STDOUT:   %.addr = alloca ptr, align 8
    257. 

  257. // CHECK:STDOUT:   %c.addr = alloca ptr, align 8
    258. 

  258. // CHECK:STDOUT:   %agg.tmp = alloca %struct.NeedThunk, align 1
    259. 

  259. // CHECK:STDOUT:   store ptr %0, ptr %.addr, align 8
    260. 

  260. // CHECK:STDOUT:   store ptr %c, ptr %c.addr, align 8
    261. 

  261. // CHECK:STDOUT:   %1 = load ptr, ptr %.addr, align 8
    262. 

  262. // CHECK:STDOUT:   %2 = load ptr, ptr %c.addr, align 8
    263. 

  263. // CHECK:STDOUT:   %3 = load i8, ptr %2, align 1
    264. 

  264. // CHECK:STDOUT:   call void @_ZNH9NeedThunk8ExplicitES_a(i8 signext %3)
    265. 

  265. // CHECK:STDOUT:   ret void
    266. 

  266. // CHECK:STDOUT: }
    267. 

  267. // CHECK:STDOUT:
    268. 

  268. // CHECK:STDOUT: declare void @_ZNH9NeedThunk8ExplicitES_a(i8 signext) #2
    269. 

  269. // CHECK:STDOUT:
    270. 

  270. // CHECK:STDOUT: ; uselistorder directives
    271. 

  271. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
    272. 

  272. // CHECK:STDOUT:
    273. 

  273. // CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    274. 

  274. // CHECK:STDOUT: attributes #1 = { alwaysinline mustprogress "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
    275. 

  275. // CHECK:STDOUT: attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="0" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
    276. 

  276. // CHECK:STDOUT:
    277. 

  277. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    278. 

  278. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    279. 

  279. // CHECK:STDOUT:
    280. 

  280. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    281. 

  281. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    282. 

  282. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    283. 

  283. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    284. 

  284. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    285. 

  285. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    286. 

  286. // CHECK:STDOUT: !6 = !DIFile(filename: "call_thunk.carbon", directory: "")
    287. 

  287. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "Call", linkageName: "_CCall.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    288. 

  288. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    289. 

  289. // CHECK:STDOUT: !9 = !{}
    290. 

  290. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 14, scope: !7)
    291. 

  291. // CHECK:STDOUT: !11 = !DILocation(line: 8, column: 14, scope: !7)
    292. 

  292. // CHECK:STDOUT: !12 = !DILocation(line: 7, column: 3, scope: !7)
    293. 

  293. // CHECK:STDOUT: !13 = !DILocation(line: 8, column: 3, scope: !7)
    294. 

  294. // CHECK:STDOUT: !14 = !DILocation(line: 6, column: 1, scope: !7)
    295.