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carbon-lang
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pointer
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address_of_lvalue.carbon

address_of_lvalue.carbon 11 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/check/testdata/pointer/address_of_lvalue.carbon
    8. 

  8. // TIP: To dump output, run:
    9. 

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/pointer/address_of_lvalue.carbon
    10. 

  10. 

  11. fn F() {
    12. 

  12.   var s: {.a: i32, .b: i32} = {.a = 1, .b = 2};
    13. 

  13. 

  14.   var p: {.a: i32, .b: i32}* = &s;
    15. 

  15.   var q: i32* = &s.a;
    16. 

  16.   var r: i32* = &s.b;
    17. 

  17. 

  18.   var t: (i32, i32) = (1, 2);
    19. 

  19.   var t0: i32* = &t.0;
    20. 

  20.   var t1: i32* = &t.1;
    21. 

  21. }
    22. 

  22. 

  23. // CHECK:STDOUT: --- address_of_lvalue.carbon
    24. 

  24. // CHECK:STDOUT:
    25. 

  25. // CHECK:STDOUT: constants {
    26. 

  26. // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
    27. 

  27. // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
    28. 

  28. // CHECK:STDOUT:   %int_32: Core.IntLiteral = int_value 32 [template]
    29. 

  29. // CHECK:STDOUT:   %i32: type = class_type @Int, @Int(%int_32) [template]
    30. 

  30. // CHECK:STDOUT:   %struct_type.a.b.3de: type = struct_type {.a: %i32, .b: %i32} [template]
    31. 

  31. // CHECK:STDOUT:   %ptr.570: type = ptr_type %struct_type.a.b.3de [template]
    32. 

  32. // CHECK:STDOUT:   %int_1.5b8: Core.IntLiteral = int_value 1 [template]
    33. 

  33. // CHECK:STDOUT:   %int_2.ecc: Core.IntLiteral = int_value 2 [template]
    34. 

  34. // CHECK:STDOUT:   %struct_type.a.b.cfd: type = struct_type {.a: Core.IntLiteral, .b: Core.IntLiteral} [template]
    35. 

  35. // CHECK:STDOUT:   %Convert.type.cd1: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
    36. 

  36. // CHECK:STDOUT:   %impl_witness.5b0: <witness> = impl_witness (imports.%import_ref.723), @impl.1(%int_32) [template]
    37. 

  37. // CHECK:STDOUT:   %Convert.type.466: type = fn_type @Convert.2, @impl.1(%int_32) [template]
    38. 

  38. // CHECK:STDOUT:   %Convert.925: %Convert.type.466 = struct_value () [template]
    39. 

  39. // CHECK:STDOUT:   %Convert.bound.afd: <bound method> = bound_method %int_1.5b8, %Convert.925 [template]
    40. 

  40. // CHECK:STDOUT:   %Convert.specific_fn.b73: <specific function> = specific_function %Convert.bound.afd, @Convert.2(%int_32) [template]
    41. 

  41. // CHECK:STDOUT:   %int_1.c60: %i32 = int_value 1 [template]
    42. 

  42. // CHECK:STDOUT:   %Convert.bound.f0b: <bound method> = bound_method %int_2.ecc, %Convert.925 [template]
    43. 

  43. // CHECK:STDOUT:   %Convert.specific_fn.20e: <specific function> = specific_function %Convert.bound.f0b, @Convert.2(%int_32) [template]
    44. 

  44. // CHECK:STDOUT:   %int_2.166: %i32 = int_value 2 [template]
    45. 

  45. // CHECK:STDOUT:   %struct: %struct_type.a.b.3de = struct_value (%int_1.c60, %int_2.166) [template]
    46. 

  46. // CHECK:STDOUT:   %ptr.dc3: type = ptr_type %i32 [template]
    47. 

  47. // CHECK:STDOUT:   %tuple.type.471: type = tuple_type (%i32, %i32) [template]
    48. 

  48. // CHECK:STDOUT:   %tuple.type.f94: type = tuple_type (Core.IntLiteral, Core.IntLiteral) [template]
    49. 

  49. // CHECK:STDOUT:   %tuple: %tuple.type.471 = tuple_value (%int_1.c60, %int_2.166) [template]
    50. 

  50. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template]
    51. 

  51. // CHECK:STDOUT: }
    52. 

  52. // CHECK:STDOUT:
    53. 

  53. // CHECK:STDOUT: imports {
    54. 

  54. // CHECK:STDOUT:   %Core: <namespace> = namespace file.%Core.import, [template] {
    55. 

  55. // CHECK:STDOUT:     .Int = %import_ref.187
    56. 

  56. // CHECK:STDOUT:     .ImplicitAs = %import_ref.a69
    57. 

  57. // CHECK:STDOUT:     import Core//prelude
    58. 

  58. // CHECK:STDOUT:     import Core//prelude/...
    59. 

  59. // CHECK:STDOUT:   }
    60. 

  60. // CHECK:STDOUT: }
    61. 

  61. // CHECK:STDOUT:
    62. 

  62. // CHECK:STDOUT: file {
    63. 

  63. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    64. 

  64. // CHECK:STDOUT:     .Core = imports.%Core
    65. 

  65. // CHECK:STDOUT:     .F = %F.decl
    66. 

  66. // CHECK:STDOUT:   }
    67. 

  67. // CHECK:STDOUT:   %Core.import = import Core
    68. 

  68. // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
    69. 

  69. // CHECK:STDOUT: }
    70. 

  70. // CHECK:STDOUT:
    71. 

  71. // CHECK:STDOUT: fn @F() {
    72. 

  72. // CHECK:STDOUT: !entry:
    73. 

  73. // CHECK:STDOUT:   %s.var: ref %struct_type.a.b.3de = var s
    74. 

  74. // CHECK:STDOUT:   %s: ref %struct_type.a.b.3de = bind_name s, %s.var
    75. 

  75. // CHECK:STDOUT:   %int_1.loc12: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    76. 

  76. // CHECK:STDOUT:   %int_2.loc12: Core.IntLiteral = int_value 2 [template = constants.%int_2.ecc]
    77. 

  77. // CHECK:STDOUT:   %.loc12_46.1: %struct_type.a.b.cfd = struct_literal (%int_1.loc12, %int_2.loc12)
    78. 

  78. // CHECK:STDOUT:   %impl.elem0.loc12_46.1: %Convert.type.cd1 = impl_witness_access constants.%impl_witness.5b0, element0 [template = constants.%Convert.925]
    79. 

  79. // CHECK:STDOUT:   %Convert.bound.loc12_46.1: <bound method> = bound_method %int_1.loc12, %impl.elem0.loc12_46.1 [template = constants.%Convert.bound.afd]
    80. 

  80. // CHECK:STDOUT:   %Convert.specific_fn.loc12_46.1: <specific function> = specific_function %Convert.bound.loc12_46.1, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.b73]
    81. 

  81. // CHECK:STDOUT:   %int.convert_checked.loc12_46.1: init %i32 = call %Convert.specific_fn.loc12_46.1(%int_1.loc12) [template = constants.%int_1.c60]
    82. 

  82. // CHECK:STDOUT:   %.loc12_46.2: init %i32 = converted %int_1.loc12, %int.convert_checked.loc12_46.1 [template = constants.%int_1.c60]
    83. 

  83. // CHECK:STDOUT:   %.loc12_46.3: ref %i32 = struct_access %s.var, element0
    84. 

  84. // CHECK:STDOUT:   %.loc12_46.4: init %i32 = initialize_from %.loc12_46.2 to %.loc12_46.3 [template = constants.%int_1.c60]
    85. 

  85. // CHECK:STDOUT:   %impl.elem0.loc12_46.2: %Convert.type.cd1 = impl_witness_access constants.%impl_witness.5b0, element0 [template = constants.%Convert.925]
    86. 

  86. // CHECK:STDOUT:   %Convert.bound.loc12_46.2: <bound method> = bound_method %int_2.loc12, %impl.elem0.loc12_46.2 [template = constants.%Convert.bound.f0b]
    87. 

  87. // CHECK:STDOUT:   %Convert.specific_fn.loc12_46.2: <specific function> = specific_function %Convert.bound.loc12_46.2, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.20e]
    88. 

  88. // CHECK:STDOUT:   %int.convert_checked.loc12_46.2: init %i32 = call %Convert.specific_fn.loc12_46.2(%int_2.loc12) [template = constants.%int_2.166]
    89. 

  89. // CHECK:STDOUT:   %.loc12_46.5: init %i32 = converted %int_2.loc12, %int.convert_checked.loc12_46.2 [template = constants.%int_2.166]
    90. 

  90. // CHECK:STDOUT:   %.loc12_46.6: ref %i32 = struct_access %s.var, element1
    91. 

  91. // CHECK:STDOUT:   %.loc12_46.7: init %i32 = initialize_from %.loc12_46.5 to %.loc12_46.6 [template = constants.%int_2.166]
    92. 

  92. // CHECK:STDOUT:   %.loc12_46.8: init %struct_type.a.b.3de = struct_init (%.loc12_46.4, %.loc12_46.7) to %s.var [template = constants.%struct]
    93. 

  93. // CHECK:STDOUT:   %.loc12_47: init %struct_type.a.b.3de = converted %.loc12_46.1, %.loc12_46.8 [template = constants.%struct]
    94. 

  94. // CHECK:STDOUT:   assign %s.var, %.loc12_47
    95. 

  95. // CHECK:STDOUT:   %p.var: ref %ptr.570 = var p
    96. 

  96. // CHECK:STDOUT:   %p: ref %ptr.570 = bind_name p, %p.var
    97. 

  97. // CHECK:STDOUT:   %s.ref.loc14: ref %struct_type.a.b.3de = name_ref s, %s
    98. 

  98. // CHECK:STDOUT:   %addr.loc14: %ptr.570 = addr_of %s.ref.loc14
    99. 

  99. // CHECK:STDOUT:   assign %p.var, %addr.loc14
    100. 

  100. // CHECK:STDOUT:   %q.var: ref %ptr.dc3 = var q
    101. 

  101. // CHECK:STDOUT:   %q: ref %ptr.dc3 = bind_name q, %q.var
    102. 

  102. // CHECK:STDOUT:   %s.ref.loc15: ref %struct_type.a.b.3de = name_ref s, %s
    103. 

  103. // CHECK:STDOUT:   %.loc15: ref %i32 = struct_access %s.ref.loc15, element0
    104. 

  104. // CHECK:STDOUT:   %addr.loc15: %ptr.dc3 = addr_of %.loc15
    105. 

  105. // CHECK:STDOUT:   assign %q.var, %addr.loc15
    106. 

  106. // CHECK:STDOUT:   %r.var: ref %ptr.dc3 = var r
    107. 

  107. // CHECK:STDOUT:   %r: ref %ptr.dc3 = bind_name r, %r.var
    108. 

  108. // CHECK:STDOUT:   %s.ref.loc16: ref %struct_type.a.b.3de = name_ref s, %s
    109. 

  109. // CHECK:STDOUT:   %.loc16: ref %i32 = struct_access %s.ref.loc16, element1
    110. 

  110. // CHECK:STDOUT:   %addr.loc16: %ptr.dc3 = addr_of %.loc16
    111. 

  111. // CHECK:STDOUT:   assign %r.var, %addr.loc16
    112. 

  112. // CHECK:STDOUT:   %t.var: ref %tuple.type.471 = var t
    113. 

  113. // CHECK:STDOUT:   %t: ref %tuple.type.471 = bind_name t, %t.var
    114. 

  114. // CHECK:STDOUT:   %int_1.loc18: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    115. 

  115. // CHECK:STDOUT:   %int_2.loc18: Core.IntLiteral = int_value 2 [template = constants.%int_2.ecc]
    116. 

  116. // CHECK:STDOUT:   %.loc18_28.1: %tuple.type.f94 = tuple_literal (%int_1.loc18, %int_2.loc18)
    117. 

  117. // CHECK:STDOUT:   %impl.elem0.loc18_28.1: %Convert.type.cd1 = impl_witness_access constants.%impl_witness.5b0, element0 [template = constants.%Convert.925]
    118. 

  118. // CHECK:STDOUT:   %Convert.bound.loc18_28.1: <bound method> = bound_method %int_1.loc18, %impl.elem0.loc18_28.1 [template = constants.%Convert.bound.afd]
    119. 

  119. // CHECK:STDOUT:   %Convert.specific_fn.loc18_28.1: <specific function> = specific_function %Convert.bound.loc18_28.1, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.b73]
    120. 

  120. // CHECK:STDOUT:   %int.convert_checked.loc18_28.1: init %i32 = call %Convert.specific_fn.loc18_28.1(%int_1.loc18) [template = constants.%int_1.c60]
    121. 

  121. // CHECK:STDOUT:   %.loc18_28.2: init %i32 = converted %int_1.loc18, %int.convert_checked.loc18_28.1 [template = constants.%int_1.c60]
    122. 

  122. // CHECK:STDOUT:   %tuple.elem0.loc18: ref %i32 = tuple_access %t.var, element0
    123. 

  123. // CHECK:STDOUT:   %.loc18_28.3: init %i32 = initialize_from %.loc18_28.2 to %tuple.elem0.loc18 [template = constants.%int_1.c60]
    124. 

  124. // CHECK:STDOUT:   %impl.elem0.loc18_28.2: %Convert.type.cd1 = impl_witness_access constants.%impl_witness.5b0, element0 [template = constants.%Convert.925]
    125. 

  125. // CHECK:STDOUT:   %Convert.bound.loc18_28.2: <bound method> = bound_method %int_2.loc18, %impl.elem0.loc18_28.2 [template = constants.%Convert.bound.f0b]
    126. 

  126. // CHECK:STDOUT:   %Convert.specific_fn.loc18_28.2: <specific function> = specific_function %Convert.bound.loc18_28.2, @Convert.2(constants.%int_32) [template = constants.%Convert.specific_fn.20e]
    127. 

  127. // CHECK:STDOUT:   %int.convert_checked.loc18_28.2: init %i32 = call %Convert.specific_fn.loc18_28.2(%int_2.loc18) [template = constants.%int_2.166]
    128. 

  128. // CHECK:STDOUT:   %.loc18_28.4: init %i32 = converted %int_2.loc18, %int.convert_checked.loc18_28.2 [template = constants.%int_2.166]
    129. 

  129. // CHECK:STDOUT:   %tuple.elem1.loc18: ref %i32 = tuple_access %t.var, element1
    130. 

  130. // CHECK:STDOUT:   %.loc18_28.5: init %i32 = initialize_from %.loc18_28.4 to %tuple.elem1.loc18 [template = constants.%int_2.166]
    131. 

  131. // CHECK:STDOUT:   %.loc18_28.6: init %tuple.type.471 = tuple_init (%.loc18_28.3, %.loc18_28.5) to %t.var [template = constants.%tuple]
    132. 

  132. // CHECK:STDOUT:   %.loc18_29: init %tuple.type.471 = converted %.loc18_28.1, %.loc18_28.6 [template = constants.%tuple]
    133. 

  133. // CHECK:STDOUT:   assign %t.var, %.loc18_29
    134. 

  134. // CHECK:STDOUT:   %t0.var: ref %ptr.dc3 = var t0
    135. 

  135. // CHECK:STDOUT:   %t0: ref %ptr.dc3 = bind_name t0, %t0.var
    136. 

  136. // CHECK:STDOUT:   %t.ref.loc19: ref %tuple.type.471 = name_ref t, %t
    137. 

  137. // CHECK:STDOUT:   %int_0: Core.IntLiteral = int_value 0 [template = constants.%int_0]
    138. 

  138. // CHECK:STDOUT:   %tuple.elem0.loc19: ref %i32 = tuple_access %t.ref.loc19, element0
    139. 

  139. // CHECK:STDOUT:   %addr.loc19: %ptr.dc3 = addr_of %tuple.elem0.loc19
    140. 

  140. // CHECK:STDOUT:   assign %t0.var, %addr.loc19
    141. 

  141. // CHECK:STDOUT:   %t1.var: ref %ptr.dc3 = var t1
    142. 

  142. // CHECK:STDOUT:   %t1: ref %ptr.dc3 = bind_name t1, %t1.var
    143. 

  143. // CHECK:STDOUT:   %t.ref.loc20: ref %tuple.type.471 = name_ref t, %t
    144. 

  144. // CHECK:STDOUT:   %int_1.loc20: Core.IntLiteral = int_value 1 [template = constants.%int_1.5b8]
    145. 

  145. // CHECK:STDOUT:   %tuple.elem1.loc20: ref %i32 = tuple_access %t.ref.loc20, element1
    146. 

  146. // CHECK:STDOUT:   %addr.loc20: %ptr.dc3 = addr_of %tuple.elem1.loc20
    147. 

  147. // CHECK:STDOUT:   assign %t1.var, %addr.loc20
    148. 

  148. // CHECK:STDOUT:   return
    149. 

  149. // CHECK:STDOUT: }
    150. 

  150. // CHECK:STDOUT:
    151.