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call_different_impls_with_const.carbon

call_different_impls_with_const.carbon 6.8 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/full.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/function/generic/call_different_impls_with_const.carbon
    10. 

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

  11. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/function/generic/call_different_impls_with_const.carbon
    12. 

  12. 

  13. import Core library "io";
    14. 

  14. 

  15. interface I {
    16. 

  16.   let T:! Core.Destroy;
    17. 

  17.   fn F() -> T;
    18. 

  18. }
    19. 

  19. class X {}
    20. 

  20. impl X as I where .T = bool {
    21. 

  21.   fn F() -> bool {
    22. 

  22.     Core.Print(1);
    23. 

  23.     return false;
    24. 

  24.   }
    25. 

  25. }
    26. 

  26. class Y {}
    27. 

  27. impl Y as I where .T = i32 {
    28. 

  28.   fn F() -> i32 {
    29. 

  29.     Core.Print(2);
    30. 

  30.     return 2;
    31. 

  31.   }
    32. 

  32. }
    33. 

  33. 

  34. // Cannot coalesce the lowering for G specifics, as they call different functions.
    35. 

  35. // Check different functions are still emitted when trying to deduplicate emitted definitons.
    36. 

  36. fn G(U:! I) {
    37. 

  37.   let _: U.T = U.F();
    38. 

  38. }
    39. 

  39. 

  40. fn Run() {
    41. 

  41.   G(X);
    42. 

  42.   G(Y);
    43. 

  43. }
    44. 

  44. 

  45. // CHECK:STDOUT: ; ModuleID = 'call_different_impls_with_const.carbon'
    46. 

  46. // CHECK:STDOUT: source_filename = "call_different_impls_with_const.carbon"
    47. 

  47. // CHECK:STDOUT:
    48. 

  48. // CHECK:STDOUT: @printf.int.format = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
    49. 

  49. // CHECK:STDOUT:
    50. 

  50. // CHECK:STDOUT: ; Function Attrs: nounwind
    51. 

  51. // CHECK:STDOUT: define i1 @"_CF.X.Main:I.Main"() #0 !dbg !4 {
    52. 

  52. // CHECK:STDOUT: entry:
    53. 

  53. // CHECK:STDOUT:   %Print.call = call i32 (ptr, ...) @printf(ptr @printf.int.format, i32 1), !dbg !8
    54. 

  54. // CHECK:STDOUT:   ret i1 false, !dbg !9
    55. 

  55. // CHECK:STDOUT: }
    56. 

  56. // CHECK:STDOUT:
    57. 

  57. // CHECK:STDOUT: ; Function Attrs: nounwind
    58. 

  58. // CHECK:STDOUT: define i32 @"_CF.Y.Main:I.Main"() #0 !dbg !10 {
    59. 

  59. // CHECK:STDOUT: entry:
    60. 

  60. // CHECK:STDOUT:   %Print.call = call i32 (ptr, ...) @printf(ptr @printf.int.format, i32 2), !dbg !14
    61. 

  61. // CHECK:STDOUT:   ret i32 2, !dbg !15
    62. 

  62. // CHECK:STDOUT: }
    63. 

  63. // CHECK:STDOUT:
    64. 

  64. // CHECK:STDOUT: ; Function Attrs: nounwind
    65. 

  65. // CHECK:STDOUT: define void @main() #0 !dbg !16 {
    66. 

  66. // CHECK:STDOUT: entry:
    67. 

  67. // CHECK:STDOUT:   call void @_CG.Main.27a852a6bab6ed2e(), !dbg !19
    68. 

  68. // CHECK:STDOUT:   call void @_CG.Main.2de7c972fe093485(), !dbg !20
    69. 

  69. // CHECK:STDOUT:   ret void, !dbg !21
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

  72. // CHECK:STDOUT: declare i32 @printf(ptr, ...)
    73. 

  73. // CHECK:STDOUT:
    74. 

  74. // CHECK:STDOUT: ; Function Attrs: nounwind
    75. 

  75. // CHECK:STDOUT: define linkonce_odr void @_CG.Main.27a852a6bab6ed2e() #0 !dbg !22 {
    76. 

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

  77. // CHECK:STDOUT:   %.loc37_20.1.temp = alloca i1, align 1, !dbg !23
    78. 

  78. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc37_20.1.temp), !dbg !23
    79. 

  79. // CHECK:STDOUT:   %I.WithSelf.F.call = call i1 @"_CF.X.Main:I.Main"(), !dbg !23
    80. 

  80. // CHECK:STDOUT:   %.loc37_20.2 = zext i1 %I.WithSelf.F.call to i8, !dbg !23
    81. 

  81. // CHECK:STDOUT:   store i8 %.loc37_20.2, ptr %.loc37_20.1.temp, align 1, !dbg !23
    82. 

  82. // CHECK:STDOUT:   %.loc37_20.3 = load i8, ptr %.loc37_20.1.temp, align 1, !dbg !23
    83. 

  83. // CHECK:STDOUT:   %.loc37_20.31 = trunc i8 %.loc37_20.3 to i1, !dbg !23
    84. 

  84. // CHECK:STDOUT:   ret void, !dbg !24
    85. 

  85. // CHECK:STDOUT: }
    86. 

  86. // CHECK:STDOUT:
    87. 

  87. // CHECK:STDOUT: ; Function Attrs: nounwind
    88. 

  88. // CHECK:STDOUT: define linkonce_odr void @_CG.Main.2de7c972fe093485() #0 !dbg !25 {
    89. 

  89. // CHECK:STDOUT: entry:
    90. 

  90. // CHECK:STDOUT:   %.loc37_20.1.temp = alloca i32, align 4, !dbg !26
    91. 

  91. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc37_20.1.temp), !dbg !26
    92. 

  92. // CHECK:STDOUT:   %I.WithSelf.F.call = call i32 @"_CF.Y.Main:I.Main"(), !dbg !26
    93. 

  93. // CHECK:STDOUT:   store i32 %I.WithSelf.F.call, ptr %.loc37_20.1.temp, align 4, !dbg !26
    94. 

  94. // CHECK:STDOUT:   %.loc37_20.3 = load i32, ptr %.loc37_20.1.temp, align 4, !dbg !26
    95. 

  95. // CHECK:STDOUT:   ret void, !dbg !27
    96. 

  96. // CHECK:STDOUT: }
    97. 

  97. // CHECK:STDOUT:
    98. 

  98. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    99. 

  99. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
    100. 

  100. // CHECK:STDOUT:
    101. 

  101. // CHECK:STDOUT: ; uselistorder directives
    102. 

  102. // CHECK:STDOUT: uselistorder ptr @printf, { 1, 0 }
    103. 

  103. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
    104. 

  104. // CHECK:STDOUT:
    105. 

  105. // CHECK:STDOUT: attributes #0 = { nounwind }
    106. 

  106. // CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    107. 

  107. // CHECK:STDOUT:
    108. 

  108. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    109. 

  109. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    110. 

  110. // CHECK:STDOUT:
    111. 

  111. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    112. 

  112. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    113. 

  113. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    114. 

  114. // CHECK:STDOUT: !3 = !DIFile(filename: "call_different_impls_with_const.carbon", directory: "")
    115. 

  115. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.X.Main:I.Main", scope: null, file: !3, line: 21, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    116. 

  116. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    117. 

  117. // CHECK:STDOUT: !6 = !{!7}
    118. 

  118. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
    119. 

  119. // CHECK:STDOUT: !8 = !DILocation(line: 22, column: 5, scope: !4)
    120. 

  120. // CHECK:STDOUT: !9 = !DILocation(line: 23, column: 5, scope: !4)
    121. 

  121. // CHECK:STDOUT: !10 = distinct !DISubprogram(name: "F", linkageName: "_CF.Y.Main:I.Main", scope: null, file: !3, line: 28, type: !11, spFlags: DISPFlagDefinition, unit: !2)
    122. 

  122. // CHECK:STDOUT: !11 = !DISubroutineType(types: !12)
    123. 

  123. // CHECK:STDOUT: !12 = !{!13}
    124. 

  124. // CHECK:STDOUT: !13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
    125. 

  125. // CHECK:STDOUT: !14 = !DILocation(line: 29, column: 5, scope: !10)
    126. 

  126. // CHECK:STDOUT: !15 = !DILocation(line: 30, column: 5, scope: !10)
    127. 

  127. // CHECK:STDOUT: !16 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !3, line: 40, type: !17, spFlags: DISPFlagDefinition, unit: !2)
    128. 

  128. // CHECK:STDOUT: !17 = !DISubroutineType(types: !18)
    129. 

  129. // CHECK:STDOUT: !18 = !{null}
    130. 

  130. // CHECK:STDOUT: !19 = !DILocation(line: 41, column: 3, scope: !16)
    131. 

  131. // CHECK:STDOUT: !20 = !DILocation(line: 42, column: 3, scope: !16)
    132. 

  132. // CHECK:STDOUT: !21 = !DILocation(line: 40, column: 1, scope: !16)
    133. 

  133. // CHECK:STDOUT: !22 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.27a852a6bab6ed2e", scope: null, file: !3, line: 36, type: !17, spFlags: DISPFlagDefinition, unit: !2)
    134. 

  134. // CHECK:STDOUT: !23 = !DILocation(line: 37, column: 16, scope: !22)
    135. 

  135. // CHECK:STDOUT: !24 = !DILocation(line: 36, column: 1, scope: !22)
    136. 

  136. // CHECK:STDOUT: !25 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.2de7c972fe093485", scope: null, file: !3, line: 36, type: !17, spFlags: DISPFlagDefinition, unit: !2)
    137. 

  137. // CHECK:STDOUT: !26 = !DILocation(line: 37, column: 16, scope: !25)
    138. 

  138. // CHECK:STDOUT: !27 = !DILocation(line: 36, column: 1, scope: !25)
    139.