Halaman utama Jelajahi Bantuan
Masuk
tomteb
/
carbon-lang
1
0
Fork 0
Berkas Masalah 0 Permintaan Tarik 0 Wiki
Pohon: 4e8810fa19
Ranting Tag
carbon-lang
/
toolchain
/
lower
/
testdata
/
interop
/
cpp
/
extern_c.carbon

extern_c.carbon 12 KB
Riwayat Mentahan

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272 
  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. //
    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/interop/cpp/extern_c.carbon
    10. 

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

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

  12. 

  13. // ============================================================================
    14. 

  14. // extern "C" function
    15. 

  15. // ============================================================================
    16. 

  16. 

  17. // --- extern_c_function.h
    18. 

  18. 

  19. extern "C" void foo();
    20. 

  20. 

  21. // --- import_extern_c_function.carbon
    22. 

  22. 

  23. library "[[@TEST_NAME]]";
    24. 

  24. 

  25. import Cpp library "extern_c_function.h";
    26. 

  26. 

  27. fn MyF() {
    28. 

  28.   Cpp.foo();
    29. 

  29. }
    30. 

  30. 

  31. // ============================================================================
    32. 

  32. // Overload set of extern "C" function and a C++ function
    33. 

  33. // ============================================================================
    34. 

  34. 

  35. // --- extern_c_function_with_cpp_overload_set.carbon
    36. 

  36. 

  37. library "[[@TEST_NAME]]";
    38. 

  38. 

  39. import Cpp inline '''
    40. 

  40. extern "C" void foo();
    41. 

  41. void foo(int x);
    42. 

  42. ''';
    43. 

  43. 

  44. fn MyF() {
    45. 

  45.   Cpp.foo();
    46. 

  46.   Cpp.foo(5);
    47. 

  47. }
    48. 

  48. 

  49. // ============================================================================
    50. 

  50. // extern "C" variable
    51. 

  51. // ============================================================================
    52. 

  52. 

  53. // --- extern_c_variable.h
    54. 

  54. 

  55. extern "C" int foo;
    56. 

  56. 

  57. // --- import_extern_c_variable.carbon
    58. 

  58. 

  59. library "[[@TEST_NAME]]";
    60. 

  60. 

  61. import Cpp library "extern_c_variable.h";
    62. 

  62. 

  63. fn MyF() -> i32 {
    64. 

  64.   return Cpp.foo;
    65. 

  65. }
    66. 

  66. 

  67. // ============================================================================
    68. 

  68. // extern "C" function with C++ special name
    69. 

  69. // ============================================================================
    70. 

  70. 

  71. // --- extern_c_with_special_name.h
    72. 

  72. 

  73. struct X {};
    74. 

  74. 

  75. extern "C" X operator+(X, X);
    76. 

  76. 

  77. // --- import_extern_c_with_special_name.carbon
    78. 

  78. 

  79. library "[[@TEST_NAME]]";
    80. 

  80. 

  81. import Cpp library "extern_c_with_special_name.h";
    82. 

  82. 

  83. fn MyF(a: Cpp.X, b: Cpp.X) -> Cpp.X {
    84. 

  84.   return a + b;
    85. 

  85. }
    86. 

  86. 

  87. // ============================================================================
    88. 

  88. // extern "C" function with asm label
    89. 

  89. // ============================================================================
    90. 

  90. 

  91. // --- extern_c_with_asm_label.h
    92. 

  92. 

  93. extern "C" void foo() __asm__("bar");
    94. 

  94. 

  95. // --- import_extern_c_with_asm_label.carbon
    96. 

  96. 

  97. library "[[@TEST_NAME]]";
    98. 

  98. 

  99. import Cpp library "extern_c_with_asm_label.h";
    100. 

  100. 

  101. fn MyF() {
    102. 

  102.   Cpp.foo();
    103. 

  103. }
    104. 

  104. 

  105. // CHECK:STDOUT: ; ModuleID = 'import_extern_c_function.carbon'
    106. 

  106. // CHECK:STDOUT: source_filename = "import_extern_c_function.carbon"
    107. 

  107. // 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"
    108. 

  108. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    109. 

  109. // CHECK:STDOUT:
    110. 

  110. // CHECK:STDOUT: define void @_CMyF.Main() !dbg !7 {
    111. 

  111. // CHECK:STDOUT: entry:
    112. 

  112. // CHECK:STDOUT:   call void @foo(), !dbg !10
    113. 

  113. // CHECK:STDOUT:   ret void, !dbg !11
    114. 

  114. // CHECK:STDOUT: }
    115. 

  115. // CHECK:STDOUT:
    116. 

  116. // CHECK:STDOUT: declare void @foo()
    117. 

  117. // CHECK:STDOUT:
    118. 

  118. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    119. 

  119. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    120. 

  120. // CHECK:STDOUT:
    121. 

  121. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    122. 

  122. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    123. 

  123. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    124. 

  124. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    125. 

  125. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    126. 

  126. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    127. 

  127. // CHECK:STDOUT: !6 = !DIFile(filename: "import_extern_c_function.carbon", directory: "")
    128. 

  128. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    129. 

  129. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    130. 

  130. // CHECK:STDOUT: !9 = !{}
    131. 

  131. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 3, scope: !7)
    132. 

  132. // CHECK:STDOUT: !11 = !DILocation(line: 6, column: 1, scope: !7)
    133. 

  133. // CHECK:STDOUT: ; ModuleID = 'extern_c_function_with_cpp_overload_set.carbon'
    134. 

  134. // CHECK:STDOUT: source_filename = "extern_c_function_with_cpp_overload_set.carbon"
    135. 

  135. // 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"
    136. 

  136. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    137. 

  137. // CHECK:STDOUT:
    138. 

  138. // CHECK:STDOUT: define void @_CMyF.Main() !dbg !7 {
    139. 

  139. // CHECK:STDOUT: entry:
    140. 

  140. // CHECK:STDOUT:   call void @foo(), !dbg !10
    141. 

  141. // CHECK:STDOUT:   call void @_Z3fooi(i32 5), !dbg !11
    142. 

  142. // CHECK:STDOUT:   ret void, !dbg !12
    143. 

  143. // CHECK:STDOUT: }
    144. 

  144. // CHECK:STDOUT:
    145. 

  145. // CHECK:STDOUT: declare void @foo()
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: declare void @_Z3fooi(i32)
    148. 

  148. // CHECK:STDOUT:
    149. 

  149. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    150. 

  150. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    151. 

  151. // CHECK:STDOUT:
    152. 

  152. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    153. 

  153. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    154. 

  154. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    155. 

  155. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    156. 

  156. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    157. 

  157. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    158. 

  158. // CHECK:STDOUT: !6 = !DIFile(filename: "extern_c_function_with_cpp_overload_set.carbon", directory: "")
    159. 

  159. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 9, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    160. 

  160. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    161. 

  161. // CHECK:STDOUT: !9 = !{}
    162. 

  162. // CHECK:STDOUT: !10 = !DILocation(line: 10, column: 3, scope: !7)
    163. 

  163. // CHECK:STDOUT: !11 = !DILocation(line: 11, column: 3, scope: !7)
    164. 

  164. // CHECK:STDOUT: !12 = !DILocation(line: 9, column: 1, scope: !7)
    165. 

  165. // CHECK:STDOUT: ; ModuleID = 'import_extern_c_variable.carbon'
    166. 

  166. // CHECK:STDOUT: source_filename = "import_extern_c_variable.carbon"
    167. 

  167. // 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"
    168. 

  168. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    169. 

  169. // CHECK:STDOUT:
    170. 

  170. // CHECK:STDOUT: @foo = external global i32
    171. 

  171. // CHECK:STDOUT:
    172. 

  172. // CHECK:STDOUT: define i32 @_CMyF.Main() !dbg !7 {
    173. 

  173. // CHECK:STDOUT: entry:
    174. 

  174. // CHECK:STDOUT:   %.loc7 = load i32, ptr @foo, align 4, !dbg !10
    175. 

  175. // CHECK:STDOUT:   ret i32 %.loc7, !dbg !11
    176. 

  176. // CHECK:STDOUT: }
    177. 

  177. // CHECK:STDOUT:
    178. 

  178. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    179. 

  179. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    180. 

  180. // CHECK:STDOUT:
    181. 

  181. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    182. 

  182. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    183. 

  183. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    184. 

  184. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    185. 

  185. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    186. 

  186. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    187. 

  187. // CHECK:STDOUT: !6 = !DIFile(filename: "import_extern_c_variable.carbon", directory: "")
    188. 

  188. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    189. 

  189. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    190. 

  190. // CHECK:STDOUT: !9 = !{}
    191. 

  191. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 10, scope: !7)
    192. 

  192. // CHECK:STDOUT: !11 = !DILocation(line: 7, column: 3, scope: !7)
    193. 

  193. // CHECK:STDOUT: ; ModuleID = 'import_extern_c_with_special_name.carbon'
    194. 

  194. // CHECK:STDOUT: source_filename = "import_extern_c_with_special_name.carbon"
    195. 

  195. // 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"
    196. 

  196. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    197. 

  197. // CHECK:STDOUT:
    198. 

  198. // CHECK:STDOUT: %struct.X = type { i8 }
    199. 

  199. // CHECK:STDOUT:
    200. 

  200. // CHECK:STDOUT: define void @_CMyF.Main(ptr sret({}) %return, ptr %a, ptr %b) !dbg !7 {
    201. 

  201. // CHECK:STDOUT: entry:
    202. 

  202. // CHECK:STDOUT:   call void @_Zpl1XS_.carbon_thunk(ptr %a, ptr %b, ptr %return), !dbg !10
    203. 

  203. // CHECK:STDOUT:   ret void, !dbg !11
    204. 

  204. // CHECK:STDOUT: }
    205. 

  205. // CHECK:STDOUT:
    206. 

  206. // CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
    207. 

  207. // CHECK:STDOUT: define dso_local void @_Zpl1XS_.carbon_thunk(ptr %0, ptr %1, ptr %return) #0 {
    208. 

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

  209. // CHECK:STDOUT:   %.addr = alloca ptr, align 8
    210. 

  210. // CHECK:STDOUT:   %.addr1 = alloca ptr, align 8
    211. 

  211. // CHECK:STDOUT:   %return.addr = alloca ptr, align 8
    212. 

  212. // CHECK:STDOUT:   %agg.tmp = alloca %struct.X, align 1
    213. 

  213. // CHECK:STDOUT:   %agg.tmp2 = alloca %struct.X, align 1
    214. 

  214. // CHECK:STDOUT:   %undef.agg.tmp = alloca %struct.X, align 1
    215. 

  215. // CHECK:STDOUT:   store ptr %0, ptr %.addr, align 8
    216. 

  216. // CHECK:STDOUT:   store ptr %1, ptr %.addr1, align 8
    217. 

  217. // CHECK:STDOUT:   store ptr %return, ptr %return.addr, align 8
    218. 

  218. // CHECK:STDOUT:   %2 = load ptr, ptr %return.addr, align 8
    219. 

  219. // CHECK:STDOUT:   %3 = load ptr, ptr %.addr, align 8
    220. 

  220. // CHECK:STDOUT:   %4 = load ptr, ptr %.addr1, align 8
    221. 

  221. // CHECK:STDOUT:   call void @_Zpl1XS_()
    222. 

  222. // CHECK:STDOUT:   ret void
    223. 

  223. // CHECK:STDOUT: }
    224. 

  224. // CHECK:STDOUT:
    225. 

  225. // CHECK:STDOUT: declare void @_Zpl1XS_() #1
    226. 

  226. // CHECK:STDOUT:
    227. 

  227. // 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" }
    228. 

  228. // CHECK:STDOUT: attributes #1 = { "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" }
    229. 

  229. // CHECK:STDOUT:
    230. 

  230. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    231. 

  231. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    232. 

  232. // CHECK:STDOUT:
    233. 

  233. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    234. 

  234. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    235. 

  235. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    236. 

  236. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    237. 

  237. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    238. 

  238. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    239. 

  239. // CHECK:STDOUT: !6 = !DIFile(filename: "import_extern_c_with_special_name.carbon", directory: "")
    240. 

  240. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    241. 

  241. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    242. 

  242. // CHECK:STDOUT: !9 = !{}
    243. 

  243. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 10, scope: !7)
    244. 

  244. // CHECK:STDOUT: !11 = !DILocation(line: 7, column: 3, scope: !7)
    245. 

  245. // CHECK:STDOUT: ; ModuleID = 'import_extern_c_with_asm_label.carbon'
    246. 

  246. // CHECK:STDOUT: source_filename = "import_extern_c_with_asm_label.carbon"
    247. 

  247. // 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"
    248. 

  248. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    249. 

  249. // CHECK:STDOUT:
    250. 

  250. // CHECK:STDOUT: define void @_CMyF.Main() !dbg !7 {
    251. 

  251. // CHECK:STDOUT: entry:
    252. 

  252. // CHECK:STDOUT:   call void @bar(), !dbg !10
    253. 

  253. // CHECK:STDOUT:   ret void, !dbg !11
    254. 

  254. // CHECK:STDOUT: }
    255. 

  255. // CHECK:STDOUT:
    256. 

  256. // CHECK:STDOUT: declare void @bar()
    257. 

  257. // CHECK:STDOUT:
    258. 

  258. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    259. 

  259. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    260. 

  260. // CHECK:STDOUT:
    261. 

  261. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    262. 

  262. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    263. 

  263. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    264. 

  264. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    265. 

  265. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    266. 

  266. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    267. 

  267. // CHECK:STDOUT: !6 = !DIFile(filename: "import_extern_c_with_asm_label.carbon", directory: "")
    268. 

  268. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    269. 

  269. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    270. 

  270. // CHECK:STDOUT: !9 = !{}
    271. 

  271. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 3, scope: !7)
    272. 

  272. // CHECK:STDOUT: !11 = !DILocation(line: 6, column: 1, scope: !7)
    273.