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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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index
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array_element_access.carbon

array_element_access.carbon 8.0 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. // 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/index/array_element_access.carbon
    10. 

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

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

  12. fn A() -> (i32, i32) { return (1, 2); }
    13. 

  13. 

  14. fn B() -> array(i32, 2) { return (1, 2); }
    15. 

  15. 

  16. fn Run() {
    17. 

  17.   var a: array(i32, 2) = A();
    18. 

  18.   var b: i32 = 1;
    19. 

  19.   var _: i32 = a[b];
    20. 

  20.   var _: i32 = B()[1];
    21. 

  21. }
    22. 

  22. 

  23. // CHECK:STDOUT: ; ModuleID = 'array_element_access.carbon'
    24. 

  24. // CHECK:STDOUT: source_filename = "array_element_access.carbon"
    25. 

  25. // CHECK:STDOUT:
    26. 

  26. // CHECK:STDOUT: @tuple.21c.loc12_37 = internal constant { i32, i32 } { i32 1, i32 2 }
    27. 

  27. // CHECK:STDOUT: @array.loc14_40 = internal constant [2 x i32] [i32 1, i32 2]
    28. 

  28. // CHECK:STDOUT:
    29. 

  29. // CHECK:STDOUT: ; Function Attrs: nounwind
    30. 

  30. // CHECK:STDOUT: define void @_CA.Main(ptr sret({ i32, i32 }) %return) #0 !dbg !4 {
    31. 

  31. // CHECK:STDOUT: entry:
    32. 

  32. // CHECK:STDOUT:   %tuple.elem0.tuple.elem = getelementptr inbounds nuw { i32, i32 }, ptr %return, i32 0, i32 0, !dbg !8
    33. 

  33. // CHECK:STDOUT:   %tuple.elem1.tuple.elem = getelementptr inbounds nuw { i32, i32 }, ptr %return, i32 0, i32 1, !dbg !8
    34. 

  34. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 %return, ptr align 4 @tuple.21c.loc12_37, i64 8, i1 false), !dbg !9
    35. 

  35. // CHECK:STDOUT:   ret void, !dbg !9
    36. 

  36. // CHECK:STDOUT: }
    37. 

  37. // CHECK:STDOUT:
    38. 

  38. // CHECK:STDOUT: ; Function Attrs: nounwind
    39. 

  39. // CHECK:STDOUT: define void @_CB.Main(ptr sret([2 x i32]) %return) #0 !dbg !10 {
    40. 

  40. // CHECK:STDOUT: entry:
    41. 

  41. // CHECK:STDOUT:   %.loc14_39.3.array.index = getelementptr inbounds [2 x i32], ptr %return, i32 0, i64 0, !dbg !11
    42. 

  42. // CHECK:STDOUT:   %.loc14_39.6.array.index = getelementptr inbounds [2 x i32], ptr %return, i32 0, i64 1, !dbg !11
    43. 

  43. // CHECK:STDOUT:   call void @llvm.memcpy.p0.p0.i64(ptr align 4 %return, ptr align 4 @array.loc14_40, i64 8, i1 false), !dbg !12
    44. 

  44. // CHECK:STDOUT:   ret void, !dbg !12
    45. 

  45. // CHECK:STDOUT: }
    46. 

  46. // CHECK:STDOUT:
    47. 

  47. // CHECK:STDOUT: ; Function Attrs: nounwind
    48. 

  48. // CHECK:STDOUT: define void @main() #0 !dbg !13 {
    49. 

  49. // CHECK:STDOUT: entry:
    50. 

  50. // CHECK:STDOUT:   %a.var = alloca [2 x i32], align 4, !dbg !16
    51. 

  51. // CHECK:STDOUT:   %.loc17_28.1.temp = alloca { i32, i32 }, align 8, !dbg !17
    52. 

  52. // CHECK:STDOUT:   %b.var = alloca i32, align 4, !dbg !18
    53. 

  53. // CHECK:STDOUT:   %_.var.loc19 = alloca i32, align 4, !dbg !19
    54. 

  54. // CHECK:STDOUT:   %_.var.loc20 = alloca i32, align 4, !dbg !20
    55. 

  55. // CHECK:STDOUT:   %.loc20_18.1.temp = alloca [2 x i32], align 4, !dbg !21
    56. 

  56. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !16
    57. 

  57. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc17_28.1.temp), !dbg !17
    58. 

  58. // CHECK:STDOUT:   call void @_CA.Main(ptr %.loc17_28.1.temp), !dbg !17
    59. 

  59. // CHECK:STDOUT:   %tuple.elem0.tuple.elem = getelementptr inbounds nuw { i32, i32 }, ptr %.loc17_28.1.temp, i32 0, i32 0, !dbg !17
    60. 

  60. // CHECK:STDOUT:   %.loc17_28.3 = load i32, ptr %tuple.elem0.tuple.elem, align 4, !dbg !17
    61. 

  61. // CHECK:STDOUT:   %.loc17_28.4.array.index = getelementptr inbounds [2 x i32], ptr %a.var, i32 0, i64 0, !dbg !17
    62. 

  62. // CHECK:STDOUT:   store i32 %.loc17_28.3, ptr %.loc17_28.4.array.index, align 4, !dbg !17
    63. 

  63. // CHECK:STDOUT:   %tuple.elem1.tuple.elem = getelementptr inbounds nuw { i32, i32 }, ptr %.loc17_28.1.temp, i32 0, i32 1, !dbg !17
    64. 

  64. // CHECK:STDOUT:   %.loc17_28.6 = load i32, ptr %tuple.elem1.tuple.elem, align 4, !dbg !17
    65. 

  65. // CHECK:STDOUT:   %.loc17_28.7.array.index = getelementptr inbounds [2 x i32], ptr %a.var, i32 0, i64 1, !dbg !17
    66. 

  66. // CHECK:STDOUT:   store i32 %.loc17_28.6, ptr %.loc17_28.7.array.index, align 4, !dbg !17
    67. 

  67. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %b.var), !dbg !18
    68. 

  68. // CHECK:STDOUT:   store i32 1, ptr %b.var, align 4, !dbg !18
    69. 

  69. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var.loc19), !dbg !19
    70. 

  70. // CHECK:STDOUT:   %.loc19_18 = load i32, ptr %b.var, align 4, !dbg !22
    71. 

  71. // CHECK:STDOUT:   %.loc19_19.1.array.index = getelementptr inbounds [2 x i32], ptr %a.var, i32 0, i32 %.loc19_18, !dbg !23
    72. 

  72. // CHECK:STDOUT:   %.loc19_19.2 = load i32, ptr %.loc19_19.1.array.index, align 4, !dbg !23
    73. 

  73. // CHECK:STDOUT:   store i32 %.loc19_19.2, ptr %_.var.loc19, align 4, !dbg !19
    74. 

  74. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %_.var.loc20), !dbg !20
    75. 

  75. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc20_18.1.temp), !dbg !21
    76. 

  76. // CHECK:STDOUT:   call void @_CB.Main(ptr %.loc20_18.1.temp), !dbg !21
    77. 

  77. // CHECK:STDOUT:   %.loc20_21.1.array.index = getelementptr inbounds [2 x i32], ptr %.loc20_18.1.temp, i32 0, i32 1, !dbg !21
    78. 

  78. // CHECK:STDOUT:   %.loc20_21.2 = load i32, ptr %.loc20_21.1.array.index, align 4, !dbg !21
    79. 

  79. // CHECK:STDOUT:   store i32 %.loc20_21.2, ptr %_.var.loc20, align 4, !dbg !20
    80. 

  80. // CHECK:STDOUT:   ret void, !dbg !24
    81. 

  81. // CHECK:STDOUT: }
    82. 

  82. // CHECK:STDOUT:
    83. 

  83. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
    84. 

  84. // CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias writeonly captures(none), ptr noalias readonly captures(none), i64, i1 immarg) #1
    85. 

  85. // CHECK:STDOUT:
    86. 

  86. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    87. 

  87. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #2
    88. 

  88. // CHECK:STDOUT:
    89. 

  89. // CHECK:STDOUT: ; uselistorder directives
    90. 

  90. // CHECK:STDOUT: uselistorder ptr @llvm.memcpy.p0.p0.i64, { 1, 0 }
    91. 

  91. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 5, 4, 3, 2, 1, 0 }
    92. 

  92. // CHECK:STDOUT:
    93. 

  93. // CHECK:STDOUT: attributes #0 = { nounwind }
    94. 

  94. // CHECK:STDOUT: attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
    95. 

  95. // CHECK:STDOUT: attributes #2 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    96. 

  96. // CHECK:STDOUT:
    97. 

  97. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    98. 

  98. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    99. 

  99. // CHECK:STDOUT:
    100. 

  100. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    101. 

  101. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    102. 

  102. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    103. 

  103. // CHECK:STDOUT: !3 = !DIFile(filename: "array_element_access.carbon", directory: "")
    104. 

  104. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "A", linkageName: "_CA.Main", scope: null, file: !3, line: 12, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    105. 

  105. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    106. 

  106. // CHECK:STDOUT: !6 = !{!7}
    107. 

  107. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 8)
    108. 

  108. // CHECK:STDOUT: !8 = !DILocation(line: 12, column: 31, scope: !4)
    109. 

  109. // CHECK:STDOUT: !9 = !DILocation(line: 12, column: 24, scope: !4)
    110. 

  110. // CHECK:STDOUT: !10 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main", scope: null, file: !3, line: 14, type: !5, spFlags: DISPFlagDefinition, unit: !2)
    111. 

  111. // CHECK:STDOUT: !11 = !DILocation(line: 14, column: 34, scope: !10)
    112. 

  112. // CHECK:STDOUT: !12 = !DILocation(line: 14, column: 27, scope: !10)
    113. 

  113. // CHECK:STDOUT: !13 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !3, line: 16, type: !14, spFlags: DISPFlagDefinition, unit: !2)
    114. 

  114. // CHECK:STDOUT: !14 = !DISubroutineType(types: !15)
    115. 

  115. // CHECK:STDOUT: !15 = !{null}
    116. 

  116. // CHECK:STDOUT: !16 = !DILocation(line: 17, column: 3, scope: !13)
    117. 

  117. // CHECK:STDOUT: !17 = !DILocation(line: 17, column: 26, scope: !13)
    118. 

  118. // CHECK:STDOUT: !18 = !DILocation(line: 18, column: 3, scope: !13)
    119. 

  119. // CHECK:STDOUT: !19 = !DILocation(line: 19, column: 3, scope: !13)
    120. 

  120. // CHECK:STDOUT: !20 = !DILocation(line: 20, column: 3, scope: !13)
    121. 

  121. // CHECK:STDOUT: !21 = !DILocation(line: 20, column: 16, scope: !13)
    122. 

  122. // CHECK:STDOUT: !22 = !DILocation(line: 19, column: 18, scope: !13)
    123. 

  123. // CHECK:STDOUT: !23 = !DILocation(line: 19, column: 16, scope: !13)
    124. 

  124. // CHECK:STDOUT: !24 = !DILocation(line: 16, column: 1, scope: !13)
    125.