صفحهٔ اصلی گشت‌و‌گذار راهنما
ورود
tomteb
/
carbon-lang
1
0
انشعاب 0
پرونده‌ها مشکلات 0 درخواست واکشی 0 ویکی
درخت: 1d314c7c4d
شاخه‌ها تگ‌ها
carbon-lang
/
toolchain
/
lower
/
testdata
/
interop
/
cpp
/
thunk.carbon

thunk.carbon 4.2 KB
تاريخچه خام

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485 
  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/thunk.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/thunk.carbon
    12. 

  12. 

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

  14. // Parameter requires a thunk to be generated
    15. 

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

  16. 

  17. // --- thunk.h
    18. 

  18. 

  19. void foo(short x, int y, long z);
    20. 

  20. 

  21. // --- import_thunk.carbon
    22. 

  22. 

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

  24. 

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

  26. 

  27. fn MyF() {
    28. 

  28.   // TODO: Make sure we actually store the value 5 into `alloca`.
    29. 

  29.   // See https://github.com/carbon-language/carbon-lang/pull/5850/files#r2249030529
    30. 

  30.   Cpp.foo(5, 6, 7);
    31. 

  31. }
    32. 

  32. 

  33. // CHECK:STDOUT: ; ModuleID = 'import_thunk.carbon'
    34. 

  34. // CHECK:STDOUT: source_filename = "import_thunk.carbon"
    35. 

  35. // 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"
    36. 

  36. // CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
    37. 

  37. // CHECK:STDOUT:
    38. 

  38. // CHECK:STDOUT: define void @_CMyF.Main() !dbg !7 {
    39. 

  39. // CHECK:STDOUT: entry:
    40. 

  40. // CHECK:STDOUT:   %.loc9_18.1.temp = alloca i16, align 2, !dbg !10
    41. 

  41. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(i64 2, ptr %.loc9_18.1.temp), !dbg !10
    42. 

  42. // CHECK:STDOUT:   call void @_Z3foosil.carbon_thunk(ptr %.loc9_18.1.temp, i32 6, i64 7), !dbg !10
    43. 

  43. // CHECK:STDOUT:   ret void, !dbg !11
    44. 

  44. // CHECK:STDOUT: }
    45. 

  45. // CHECK:STDOUT:
    46. 

  46. // CHECK:STDOUT: declare void @_Z3foosil(i16, i32, i64)
    47. 

  47. // CHECK:STDOUT:
    48. 

  48. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    49. 

  49. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(i64 immarg, ptr captures(none)) #0
    50. 

  50. // CHECK:STDOUT:
    51. 

  51. // CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress
    52. 

  52. // CHECK:STDOUT: define dso_local void @_Z3foosil.carbon_thunk(ptr %x, i32 %y, i64 %z) #1 {
    53. 

  53. // CHECK:STDOUT: entry:
    54. 

  54. // CHECK:STDOUT:   %x.addr = alloca ptr, align 8
    55. 

  55. // CHECK:STDOUT:   %y.addr = alloca i32, align 4
    56. 

  56. // CHECK:STDOUT:   %z.addr = alloca i64, align 8
    57. 

  57. // CHECK:STDOUT:   store ptr %x, ptr %x.addr, align 8
    58. 

  58. // CHECK:STDOUT:   store i32 %y, ptr %y.addr, align 4
    59. 

  59. // CHECK:STDOUT:   store i64 %z, ptr %z.addr, align 8
    60. 

  60. // CHECK:STDOUT:   %0 = load ptr, ptr %x.addr, align 8
    61. 

  61. // CHECK:STDOUT:   %1 = load i16, ptr %0, align 2
    62. 

  62. // CHECK:STDOUT:   %2 = load i32, ptr %y.addr, align 4
    63. 

  63. // CHECK:STDOUT:   %3 = load i64, ptr %z.addr, align 8
    64. 

  64. // CHECK:STDOUT:   call void @_Z3foosil(i16 signext %1, i32 %2, i64 %3)
    65. 

  65. // CHECK:STDOUT:   ret void
    66. 

  66. // CHECK:STDOUT: }
    67. 

  67. // CHECK:STDOUT:
    68. 

  68. // CHECK:STDOUT: attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    69. 

  69. // 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" }
    70. 

  70. // CHECK:STDOUT:
    71. 

  71. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
    72. 

  72. // CHECK:STDOUT: !llvm.dbg.cu = !{!5}
    73. 

  73. // CHECK:STDOUT:
    74. 

  74. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    75. 

  75. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    76. 

  76. // CHECK:STDOUT: !2 = !{i32 1, !"wchar_size", i32 4}
    77. 

  77. // CHECK:STDOUT: !3 = !{i32 8, !"PIC Level", i32 0}
    78. 

  78. // CHECK:STDOUT: !4 = !{i32 7, !"PIE Level", i32 2}
    79. 

  79. // CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    80. 

  80. // CHECK:STDOUT: !6 = !DIFile(filename: "import_thunk.carbon", directory: "")
    81. 

  81. // CHECK:STDOUT: !7 = distinct !DISubprogram(name: "MyF", linkageName: "_CMyF.Main", scope: null, file: !6, line: 6, type: !8, spFlags: DISPFlagDefinition, unit: !5)
    82. 

  82. // CHECK:STDOUT: !8 = !DISubroutineType(types: !9)
    83. 

  83. // CHECK:STDOUT: !9 = !{}
    84. 

  84. // CHECK:STDOUT: !10 = !DILocation(line: 9, column: 3, scope: !7)
    85. 

  85. // CHECK:STDOUT: !11 = !DILocation(line: 6, column: 1, scope: !7)
    86.