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global.carbon

global.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/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/var/global.carbon
    10. 

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

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/var/global.carbon
    12. 

  12. 

  13. // TODO: We should initialize all of these variables statically rather than on startup.
    14. 

  14. 

  15. // --- simple.carbon
    16. 

  16. 

  17. library "[[@TEST_NAME]]";
    18. 

  18. 

  19. var a: i32 = 1;
    20. 

  20. fn GetA() -> i32* { return &a; }
    21. 

  21. 

  22. // --- var_in_tuple.carbon
    23. 

  23. 

  24. library "[[@TEST_NAME]]";
    25. 

  25. 

  26. let (var b: i32, var c: i32) = (2, 3);
    27. 

  27. 

  28. fn GetB() -> i32* { return &b; }
    29. 

  29. fn GetC() -> i32* { return &c; }
    30. 

  30. 

  31. // --- tuple_in_var.carbon
    32. 

  32. 

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

  34. 

  35. var (d: i32, e: i32) = (4, 5);
    36. 

  36. 

  37. fn GetD() -> i32* { return &d; }
    38. 

  38. fn GetE() -> i32* { return &e; }
    39. 

  39. 

  40. // --- unnamed.carbon
    41. 

  41. 

  42. library "[[@TEST_NAME]]";
    43. 

  43. 

  44. var (_: i32, x: i32) = (1, 2);
    45. 

  45. var (_: i32, _: i32) = (3, 4);
    46. 

  46. 

  47. // CHECK:STDOUT: ; ModuleID = 'simple.carbon'
    48. 

  48. // CHECK:STDOUT: source_filename = "simple.carbon"
    49. 

  49. // CHECK:STDOUT:
    50. 

  50. // CHECK:STDOUT: @_Ca.Main = global i32 0
    51. 

  51. // CHECK:STDOUT: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @_C__global_init.Main, ptr null }]
    52. 

  52. // CHECK:STDOUT:
    53. 

  53. // CHECK:STDOUT: ; Function Attrs: nounwind
    54. 

  54. // CHECK:STDOUT: define ptr @_CGetA.Main() #0 !dbg !4 {
    55. 

  55. // CHECK:STDOUT: entry:
    56. 

  56. // CHECK:STDOUT:   ret ptr @_Ca.Main, !dbg !8
    57. 

  57. // CHECK:STDOUT: }
    58. 

  58. // CHECK:STDOUT:
    59. 

  59. // CHECK:STDOUT: ; Function Attrs: nounwind
    60. 

  60. // CHECK:STDOUT: define internal void @_C__global_init.Main() #0 !dbg !9 {
    61. 

  61. // CHECK:STDOUT: entry:
    62. 

  62. // CHECK:STDOUT:   store i32 1, ptr @_Ca.Main, align 4, !dbg !12
    63. 

  63. // CHECK:STDOUT:   ret void, !dbg !13
    64. 

  64. // CHECK:STDOUT: }
    65. 

  65. // CHECK:STDOUT:
    66. 

  66. // CHECK:STDOUT: attributes #0 = { nounwind }
    67. 

  67. // CHECK:STDOUT:
    68. 

  68. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    69. 

  69. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    70. 

  70. // CHECK:STDOUT:
    71. 

  71. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    72. 

  72. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    73. 

  73. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    74. 

  74. // CHECK:STDOUT: !3 = !DIFile(filename: "simple.carbon", directory: "")
    75. 

  75. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "GetA", linkageName: "_CGetA.Main", scope: null, file: !3, line: 5, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    76. 

  76. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    77. 

  77. // CHECK:STDOUT: !6 = !{!7}
    78. 

  78. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
    79. 

  79. // CHECK:STDOUT: !8 = !DILocation(line: 5, column: 21, scope: !4)
    80. 

  80. // CHECK:STDOUT: !9 = distinct !DISubprogram(name: "__global_init", linkageName: "_C__global_init.Main", scope: null, file: !3, type: !10, spFlags: DISPFlagDefinition, unit: !2)
    81. 

  81. // CHECK:STDOUT: !10 = !DISubroutineType(types: !11)
    82. 

  82. // CHECK:STDOUT: !11 = !{null}
    83. 

  83. // CHECK:STDOUT: !12 = !DILocation(line: 4, column: 1, scope: !9)
    84. 

  84. // CHECK:STDOUT: !13 = !DILocation(line: 0, scope: !9)
    85. 

  85. // CHECK:STDOUT: ; ModuleID = 'var_in_tuple.carbon'
    86. 

  86. // CHECK:STDOUT: source_filename = "var_in_tuple.carbon"
    87. 

  87. // CHECK:STDOUT:
    88. 

  88. // CHECK:STDOUT: @_Cb.Main = global i32 0
    89. 

  89. // CHECK:STDOUT: @_Cc.Main = global i32 0
    90. 

  90. // CHECK:STDOUT: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @_C__global_init.Main, ptr null }]
    91. 

  91. // CHECK:STDOUT:
    92. 

  92. // CHECK:STDOUT: ; Function Attrs: nounwind
    93. 

  93. // CHECK:STDOUT: define ptr @_CGetB.Main() #0 !dbg !4 {
    94. 

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

  95. // CHECK:STDOUT:   ret ptr @_Cb.Main, !dbg !8
    96. 

  96. // CHECK:STDOUT: }
    97. 

  97. // CHECK:STDOUT:
    98. 

  98. // CHECK:STDOUT: ; Function Attrs: nounwind
    99. 

  99. // CHECK:STDOUT: define ptr @_CGetC.Main() #0 !dbg !9 {
    100. 

  100. // CHECK:STDOUT: entry:
    101. 

  101. // CHECK:STDOUT:   ret ptr @_Cc.Main, !dbg !10
    102. 

  102. // CHECK:STDOUT: }
    103. 

  103. // CHECK:STDOUT:
    104. 

  104. // CHECK:STDOUT: ; Function Attrs: nounwind
    105. 

  105. // CHECK:STDOUT: define internal void @_C__global_init.Main() #0 !dbg !11 {
    106. 

  106. // CHECK:STDOUT: entry:
    107. 

  107. // CHECK:STDOUT:   store i32 2, ptr @_Cb.Main, align 4, !dbg !14
    108. 

  108. // CHECK:STDOUT:   store i32 3, ptr @_Cc.Main, align 4, !dbg !15
    109. 

  109. // CHECK:STDOUT:   ret void, !dbg !16
    110. 

  110. // CHECK:STDOUT: }
    111. 

  111. // CHECK:STDOUT:
    112. 

  112. // CHECK:STDOUT: attributes #0 = { nounwind }
    113. 

  113. // CHECK:STDOUT:
    114. 

  114. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    115. 

  115. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    116. 

  116. // CHECK:STDOUT:
    117. 

  117. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    118. 

  118. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    119. 

  119. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    120. 

  120. // CHECK:STDOUT: !3 = !DIFile(filename: "var_in_tuple.carbon", directory: "")
    121. 

  121. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "GetB", linkageName: "_CGetB.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    122. 

  122. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    123. 

  123. // CHECK:STDOUT: !6 = !{!7}
    124. 

  124. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
    125. 

  125. // CHECK:STDOUT: !8 = !DILocation(line: 6, column: 21, scope: !4)
    126. 

  126. // CHECK:STDOUT: !9 = distinct !DISubprogram(name: "GetC", linkageName: "_CGetC.Main", scope: null, file: !3, line: 7, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    127. 

  127. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 21, scope: !9)
    128. 

  128. // CHECK:STDOUT: !11 = distinct !DISubprogram(name: "__global_init", linkageName: "_C__global_init.Main", scope: null, file: !3, type: !12, spFlags: DISPFlagDefinition, unit: !2)
    129. 

  129. // CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
    130. 

  130. // CHECK:STDOUT: !13 = !{null}
    131. 

  131. // CHECK:STDOUT: !14 = !DILocation(line: 4, column: 6, scope: !11)
    132. 

  132. // CHECK:STDOUT: !15 = !DILocation(line: 4, column: 18, scope: !11)
    133. 

  133. // CHECK:STDOUT: !16 = !DILocation(line: 0, scope: !11)
    134. 

  134. // CHECK:STDOUT: ; ModuleID = 'tuple_in_var.carbon'
    135. 

  135. // CHECK:STDOUT: source_filename = "tuple_in_var.carbon"
    136. 

  136. // CHECK:STDOUT:
    137. 

  137. // CHECK:STDOUT: @_Cd.Main = global { i32, i32 } zeroinitializer
    138. 

  138. // CHECK:STDOUT: @tuple.0a0.loc4_1 = internal constant { i32, i32 } { i32 4, i32 5 }
    139. 

  139. // CHECK:STDOUT: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @_C__global_init.Main, ptr null }]
    140. 

  140. // CHECK:STDOUT:
    141. 

  141. // CHECK:STDOUT: ; Function Attrs: nounwind
    142. 

  142. // CHECK:STDOUT: define ptr @_CGetD.Main() #0 !dbg !4 {
    143. 

  143. // CHECK:STDOUT: entry:
    144. 

  144. // CHECK:STDOUT:   ret ptr @_Cd.Main, !dbg !8
    145. 

  145. // CHECK:STDOUT: }
    146. 

  146. // CHECK:STDOUT:
    147. 

  147. // CHECK:STDOUT: ; Function Attrs: nounwind
    148. 

  148. // CHECK:STDOUT: define ptr @_CGetE.Main() #0 !dbg !9 {
    149. 

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

  150. // CHECK:STDOUT:   ret ptr getelementptr inbounds nuw ({ i32, i32 }, ptr @_Cd.Main, i32 0, i32 1), !dbg !10
    151. 

  151. // CHECK:STDOUT: }
    152. 

  152. // CHECK:STDOUT:
    153. 

  153. // CHECK:STDOUT: ; Function Attrs: nounwind
    154. 

  154. // CHECK:STDOUT: define internal void @_C__global_init.Main() #0 !dbg !11 {
    155. 

  155. // CHECK:STDOUT: entry:
    156. 

  156. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 @_Cd.Main, ptr align 4 @tuple.0a0.loc4_1, i64 8, i1 false), !dbg !14
    157. 

  157. // CHECK:STDOUT:   ret void, !dbg !15
    158. 

  158. // CHECK:STDOUT: }
    159. 

  159. // CHECK:STDOUT:
    160. 

  160. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    161. 

  161. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
    162. 

  162. // CHECK:STDOUT:
    163. 

  163. // CHECK:STDOUT: ; uselistorder directives
    164. 

  164. // CHECK:STDOUT: uselistorder ptr @_Cd.Main, { 0, 2, 1 }
    165. 

  165. // CHECK:STDOUT:
    166. 

  166. // CHECK:STDOUT: attributes #0 = { nounwind }
    167. 

  167. // CHECK:STDOUT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    168. 

  168. // CHECK:STDOUT:
    169. 

  169. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    170. 

  170. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    171. 

  171. // CHECK:STDOUT:
    172. 

  172. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    173. 

  173. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    174. 

  174. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    175. 

  175. // CHECK:STDOUT: !3 = !DIFile(filename: "tuple_in_var.carbon", directory: "")
    176. 

  176. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "GetD", linkageName: "_CGetD.Main", scope: null, file: !3, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    177. 

  177. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    178. 

  178. // CHECK:STDOUT: !6 = !{!7}
    179. 

  179. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
    180. 

  180. // CHECK:STDOUT: !8 = !DILocation(line: 6, column: 21, scope: !4)
    181. 

  181. // CHECK:STDOUT: !9 = distinct !DISubprogram(name: "GetE", linkageName: "_CGetE.Main", scope: null, file: !3, line: 7, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    182. 

  182. // CHECK:STDOUT: !10 = !DILocation(line: 7, column: 21, scope: !9)
    183. 

  183. // CHECK:STDOUT: !11 = distinct !DISubprogram(name: "__global_init", linkageName: "_C__global_init.Main", scope: null, file: !3, type: !12, spFlags: DISPFlagDefinition, unit: !2)
    184. 

  184. // CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
    185. 

  185. // CHECK:STDOUT: !13 = !{null}
    186. 

  186. // CHECK:STDOUT: !14 = !DILocation(line: 4, column: 1, scope: !11)
    187. 

  187. // CHECK:STDOUT: !15 = !DILocation(line: 0, scope: !11)
    188. 

  188. // CHECK:STDOUT: ; ModuleID = 'unnamed.carbon'
    189. 

  189. // CHECK:STDOUT: source_filename = "unnamed.carbon"
    190. 

  190. // CHECK:STDOUT:
    191. 

  191. // CHECK:STDOUT: @_Cx.Main = global { i32, i32 } zeroinitializer
    192. 

  192. // CHECK:STDOUT: @var.anon.var_patt.loc5 = internal global { i32, i32 } zeroinitializer
    193. 

  193. // CHECK:STDOUT: @tuple.21c.loc4_1 = internal constant { i32, i32 } { i32 1, i32 2 }
    194. 

  194. // CHECK:STDOUT: @tuple.ffd.loc5_1 = internal constant { i32, i32 } { i32 3, i32 4 }
    195. 

  195. // CHECK:STDOUT: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 0, ptr @_C__global_init.Main, ptr null }]
    196. 

  196. // CHECK:STDOUT:
    197. 

  197. // CHECK:STDOUT: ; Function Attrs: nounwind
    198. 

  198. // CHECK:STDOUT: define internal void @_C__global_init.Main() #0 !dbg !4 {
    199. 

  199. // CHECK:STDOUT: entry:
    200. 

  200. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 @_Cx.Main, ptr align 4 @tuple.21c.loc4_1, i64 8, i1 false), !dbg !7
    201. 

  201. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 @var.anon.var_patt.loc5, ptr align 4 @tuple.ffd.loc5_1, i64 8, i1 false), !dbg !8
    202. 

  202. // CHECK:STDOUT:   ret void, !dbg !9
    203. 

  203. // CHECK:STDOUT: }
    204. 

  204. // CHECK:STDOUT:
    205. 

  205. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    206. 

  206. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
    207. 

  207. // CHECK:STDOUT:
    208. 

  208. // CHECK:STDOUT: ; uselistorder directives
    209. 

  209. // CHECK:STDOUT: uselistorder ptr @llvm.memcpy.p0.p0.i64, { 1, 0 }
    210. 

  210. // CHECK:STDOUT:
    211. 

  211. // CHECK:STDOUT: attributes #0 = { nounwind }
    212. 

  212. // CHECK:STDOUT: attributes #1 = { 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_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    220. 

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

  221. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "__global_init", linkageName: "_C__global_init.Main", scope: null, file: !3, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    222. 

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

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

  224. // CHECK:STDOUT: !7 = !DILocation(line: 4, column: 1, scope: !4)
    225. 

  225. // CHECK:STDOUT: !8 = !DILocation(line: 5, column: 1, scope: !4)
    226. 

  226. // CHECK:STDOUT: !9 = !DILocation(line: 0, scope: !4)
    227.