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carbon-lang
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toolchain
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lower
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testdata
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impl
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thunk.carbon

thunk.carbon 6.0 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. // 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. class A { var a: i32; }
    12. 

  12. class B { var b: i32; }
    13. 

  13. class C { var c: i32; }
    14. 

  14. 

  15. impl A as Core.ImplicitAs(B) {
    16. 

  16.   fn Convert[self: A]() -> B { return {.b = self.a}; }
    17. 

  17. }
    18. 

  18. impl B as Core.ImplicitAs(C) {
    19. 

  19.   fn Convert[self: B]() -> C { return {.c = self.b}; }
    20. 

  20. }
    21. 

  21. 

  22. interface I {
    23. 

  23.   fn F(a: A) -> C;
    24. 

  24. }
    25. 

  25. 

  26. impl () as I {
    27. 

  27.   fn F(b: B) -> B { return {.b = b.b}; }
    28. 

  28. }
    29. 

  29. 

  30. fn Test(a: A) -> C {
    31. 

  31.   return ().(I.F)(a);
    32. 

  32. }
    33. 

  33. 

  34. // CHECK:STDOUT: ; ModuleID = 'thunk.carbon'
    35. 

  35. // CHECK:STDOUT: source_filename = "thunk.carbon"
    36. 

  36. // CHECK:STDOUT:
    37. 

  37. // CHECK:STDOUT: define void @"_CConvert.A.Main:ImplicitAs.Core"(ptr sret({ i32 }) %return, ptr %self) !dbg !4 {
    38. 

  38. // CHECK:STDOUT: entry:
    39. 

  39. // CHECK:STDOUT:   %.loc16_49.1.a = getelementptr inbounds nuw { i32 }, ptr %self, i32 0, i32 0, !dbg !7
    40. 

  40. // CHECK:STDOUT:   %.loc16_49.2 = load i32, ptr %.loc16_49.1.a, align 4, !dbg !7
    41. 

  41. // CHECK:STDOUT:   %.loc16_51.2.b = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !8
    42. 

  42. // CHECK:STDOUT:   store i32 %.loc16_49.2, ptr %.loc16_51.2.b, align 4, !dbg !8
    43. 

  43. // CHECK:STDOUT:   ret void, !dbg !9
    44. 

  44. // CHECK:STDOUT: }
    45. 

  45. // CHECK:STDOUT:
    46. 

  46. // CHECK:STDOUT: define void @"_CConvert.B.Main:ImplicitAs.Core"(ptr sret({ i32 }) %return, ptr %self) !dbg !10 {
    47. 

  47. // CHECK:STDOUT: entry:
    48. 

  48. // CHECK:STDOUT:   %.loc19_49.1.b = getelementptr inbounds nuw { i32 }, ptr %self, i32 0, i32 0, !dbg !11
    49. 

  49. // CHECK:STDOUT:   %.loc19_49.2 = load i32, ptr %.loc19_49.1.b, align 4, !dbg !11
    50. 

  50. // CHECK:STDOUT:   %.loc19_51.2.c = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !12
    51. 

  51. // CHECK:STDOUT:   store i32 %.loc19_49.2, ptr %.loc19_51.2.c, align 4, !dbg !12
    52. 

  52. // CHECK:STDOUT:   ret void, !dbg !13
    53. 

  53. // CHECK:STDOUT: }
    54. 

  54. // CHECK:STDOUT:
    55. 

  55. // CHECK:STDOUT: define void @"_CF.61ea2aba74ab3bf1:I.Main"(ptr sret({ i32 }) %return, ptr %b) !dbg !14 {
    56. 

  56. // CHECK:STDOUT: entry:
    57. 

  57. // CHECK:STDOUT:   %.loc27_35.1.b = getelementptr inbounds nuw { i32 }, ptr %b, i32 0, i32 0, !dbg !15
    58. 

  58. // CHECK:STDOUT:   %.loc27_35.2 = load i32, ptr %.loc27_35.1.b, align 4, !dbg !15
    59. 

  59. // CHECK:STDOUT:   %.loc27_37.2.b = getelementptr inbounds nuw { i32 }, ptr %return, i32 0, i32 0, !dbg !16
    60. 

  60. // CHECK:STDOUT:   store i32 %.loc27_35.2, ptr %.loc27_37.2.b, align 4, !dbg !16
    61. 

  61. // CHECK:STDOUT:   ret void, !dbg !17
    62. 

  62. // CHECK:STDOUT: }
    63. 

  63. // CHECK:STDOUT:
    64. 

  64. // CHECK:STDOUT: define void @"_CF:thunk.61ea2aba74ab3bf1:I.Main"(ptr sret({ i32 }) %return, ptr %a) !dbg !18 {
    65. 

  65. // CHECK:STDOUT: entry:
    66. 

  66. // CHECK:STDOUT:   %.loc27_19.1.temp = alloca { i32 }, align 8, !dbg !19
    67. 

  67. // CHECK:STDOUT:   %.loc23_9.1.temp = alloca { i32 }, align 8, !dbg !20
    68. 

  68. // CHECK:STDOUT:   call void @"_CConvert.A.Main:ImplicitAs.Core"(ptr %.loc23_9.1.temp, ptr %a), !dbg !20
    69. 

  69. // CHECK:STDOUT:   call void @"_CF.61ea2aba74ab3bf1:I.Main"(ptr %.loc27_19.1.temp, ptr %.loc23_9.1.temp), !dbg !19
    70. 

  70. // CHECK:STDOUT:   %.loc27_19.2.temp = alloca { i32 }, align 8, !dbg !19
    71. 

  71. // CHECK:STDOUT:   call void @"_CConvert.B.Main:ImplicitAs.Core"(ptr %.loc27_19.2.temp, ptr %.loc27_19.1.temp), !dbg !19
    72. 

  72. // CHECK:STDOUT:   ret void, !dbg !19
    73. 

  73. // CHECK:STDOUT: }
    74. 

  74. // CHECK:STDOUT:
    75. 

  75. // CHECK:STDOUT: define void @_CTest.Main(ptr sret({ i32 }) %return, ptr %a) !dbg !21 {
    76. 

  76. // CHECK:STDOUT: entry:
    77. 

  77. // CHECK:STDOUT:   call void @"_CF:thunk.61ea2aba74ab3bf1:I.Main"(ptr %return, ptr %a), !dbg !22
    78. 

  78. // CHECK:STDOUT:   ret void, !dbg !23
    79. 

  79. // CHECK:STDOUT: }
    80. 

  80. // CHECK:STDOUT:
    81. 

  81. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    82. 

  82. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    83. 

  83. // CHECK:STDOUT:
    84. 

  84. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    85. 

  85. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    86. 

  86. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    87. 

  87. // CHECK:STDOUT: !3 = !DIFile(filename: "thunk.carbon", directory: "")
    88. 

  88. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.A.Main:ImplicitAs.Core", scope: null, file: !3, line: 16, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    89. 

  89. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    90. 

  90. // CHECK:STDOUT: !6 = !{}
    91. 

  91. // CHECK:STDOUT: !7 = !DILocation(line: 16, column: 45, scope: !4)
    92. 

  92. // CHECK:STDOUT: !8 = !DILocation(line: 16, column: 39, scope: !4)
    93. 

  93. // CHECK:STDOUT: !9 = !DILocation(line: 16, column: 32, scope: !4)
    94. 

  94. // CHECK:STDOUT: !10 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.B.Main:ImplicitAs.Core", scope: null, file: !3, line: 19, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    95. 

  95. // CHECK:STDOUT: !11 = !DILocation(line: 19, column: 45, scope: !10)
    96. 

  96. // CHECK:STDOUT: !12 = !DILocation(line: 19, column: 39, scope: !10)
    97. 

  97. // CHECK:STDOUT: !13 = !DILocation(line: 19, column: 32, scope: !10)
    98. 

  98. // CHECK:STDOUT: !14 = distinct !DISubprogram(name: "F", linkageName: "_CF.61ea2aba74ab3bf1:I.Main", scope: null, file: !3, line: 27, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    99. 

  99. // CHECK:STDOUT: !15 = !DILocation(line: 27, column: 34, scope: !14)
    100. 

  100. // CHECK:STDOUT: !16 = !DILocation(line: 27, column: 28, scope: !14)
    101. 

  101. // CHECK:STDOUT: !17 = !DILocation(line: 27, column: 21, scope: !14)
    102. 

  102. // CHECK:STDOUT: !18 = distinct !DISubprogram(name: "F", linkageName: "_CF:thunk.61ea2aba74ab3bf1:I.Main", scope: null, file: !3, line: 27, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    103. 

  103. // CHECK:STDOUT: !19 = !DILocation(line: 27, column: 3, scope: !18)
    104. 

  104. // CHECK:STDOUT: !20 = !DILocation(line: 23, column: 8, scope: !18)
    105. 

  105. // CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Test", linkageName: "_CTest.Main", scope: null, file: !3, line: 30, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    106. 

  106. // CHECK:STDOUT: !22 = !DILocation(line: 31, column: 10, scope: !21)
    107. 

  107. // CHECK:STDOUT: !23 = !DILocation(line: 31, column: 3, scope: !21)
    108.