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carbon-lang
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carbon-lang
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toolchain
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check
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testdata
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operators
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builtin
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assignment.carbon

assignment.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/operators/builtin/assignment.carbon
    8. 

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

  9. // TIP:   bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/operators/builtin/assignment.carbon
    10. 

  10. 

  11. fn Main() {
    12. 

  12.   var a: i32 = 12;
    13. 

  13.   a = 9;
    14. 

  14. 

  15.   var b: (i32, i32) = (1, 2);
    16. 

  16.   b[0] = 3;
    17. 

  17.   b[1] = 4;
    18. 

  18. 

  19.   var c: {.a: i32, .b: i32} = {.a = 1, .b = 2};
    20. 

  20.   c.a = 3;
    21. 

  21.   c.b = 4;
    22. 

  22. 

  23.   var p: i32* = &a;
    24. 

  24.   *p = 5;
    25. 

  25. 

  26.   *(if true then p else &a) = 10;
    27. 

  27. }
    28. 

  28. 

  29. // CHECK:STDOUT: --- assignment.carbon
    30. 

  30. // CHECK:STDOUT:
    31. 

  31. // CHECK:STDOUT: constants {
    32. 

  32. // CHECK:STDOUT:   %Main.type: type = fn_type @Main [template]
    33. 

  33. // CHECK:STDOUT:   %.1: type = tuple_type () [template]
    34. 

  34. // CHECK:STDOUT:   %Main: %Main.type = struct_value () [template]
    35. 

  35. // CHECK:STDOUT:   %Int32.type: type = fn_type @Int32 [template]
    36. 

  36. // CHECK:STDOUT:   %Int32: %Int32.type = struct_value () [template]
    37. 

  37. // CHECK:STDOUT:   %.2: i32 = int_literal 12 [template]
    38. 

  38. // CHECK:STDOUT:   %.3: i32 = int_literal 9 [template]
    39. 

  39. // CHECK:STDOUT:   %.4: type = tuple_type (type, type) [template]
    40. 

  40. // CHECK:STDOUT:   %.5: type = tuple_type (i32, i32) [template]
    41. 

  41. // CHECK:STDOUT:   %.6: type = ptr_type %.5 [template]
    42. 

  42. // CHECK:STDOUT:   %.7: i32 = int_literal 1 [template]
    43. 

  43. // CHECK:STDOUT:   %.8: i32 = int_literal 2 [template]
    44. 

  44. // CHECK:STDOUT:   %tuple: %.5 = tuple_value (%.7, %.8) [template]
    45. 

  45. // CHECK:STDOUT:   %.9: i32 = int_literal 0 [template]
    46. 

  46. // CHECK:STDOUT:   %.10: i32 = int_literal 3 [template]
    47. 

  47. // CHECK:STDOUT:   %.11: i32 = int_literal 4 [template]
    48. 

  48. // CHECK:STDOUT:   %.12: type = struct_type {.a: i32, .b: i32} [template]
    49. 

  49. // CHECK:STDOUT:   %.13: type = ptr_type %.12 [template]
    50. 

  50. // CHECK:STDOUT:   %struct: %.12 = struct_value (%.7, %.8) [template]
    51. 

  51. // CHECK:STDOUT:   %.14: type = ptr_type i32 [template]
    52. 

  52. // CHECK:STDOUT:   %.15: i32 = int_literal 5 [template]
    53. 

  53. // CHECK:STDOUT:   %.16: bool = bool_literal true [template]
    54. 

  54. // CHECK:STDOUT:   %.17: i32 = int_literal 10 [template]
    55. 

  55. // CHECK:STDOUT: }
    56. 

  56. // CHECK:STDOUT:
    57. 

  57. // CHECK:STDOUT: file {
    58. 

  58. // CHECK:STDOUT:   package: <namespace> = namespace [template] {
    59. 

  59. // CHECK:STDOUT:     .Core = %Core
    60. 

  60. // CHECK:STDOUT:     .Main = %Main.decl
    61. 

  61. // CHECK:STDOUT:   }
    62. 

  62. // CHECK:STDOUT:   %Core: <namespace> = namespace [template] {}
    63. 

  63. // CHECK:STDOUT:   %Main.decl: %Main.type = fn_decl @Main [template = constants.%Main] {}
    64. 

  64. // CHECK:STDOUT:   %import_ref.1: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    65. 

  65. // CHECK:STDOUT:   %import_ref.2: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    66. 

  66. // CHECK:STDOUT:   %import_ref.3: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    67. 

  67. // CHECK:STDOUT:   %import_ref.4: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    68. 

  68. // CHECK:STDOUT:   %import_ref.5: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    69. 

  69. // CHECK:STDOUT:   %import_ref.6: %Int32.type = import_ref ir3, inst+3, loaded [template = constants.%Int32]
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

  72. // CHECK:STDOUT: fn @Main() {
    73. 

  73. // CHECK:STDOUT: !entry:
    74. 

  74. // CHECK:STDOUT:   %int.make_type_32.loc12: init type = call constants.%Int32() [template = i32]
    75. 

  75. // CHECK:STDOUT:   %.loc12_10.1: type = value_of_initializer %int.make_type_32.loc12 [template = i32]
    76. 

  76. // CHECK:STDOUT:   %.loc12_10.2: type = converted %int.make_type_32.loc12, %.loc12_10.1 [template = i32]
    77. 

  77. // CHECK:STDOUT:   %a.var: ref i32 = var a
    78. 

  78. // CHECK:STDOUT:   %a: ref i32 = bind_name a, %a.var
    79. 

  79. // CHECK:STDOUT:   %.loc12_16: i32 = int_literal 12 [template = constants.%.2]
    80. 

  80. // CHECK:STDOUT:   assign %a.var, %.loc12_16
    81. 

  81. // CHECK:STDOUT:   %a.ref.loc13: ref i32 = name_ref a, %a
    82. 

  82. // CHECK:STDOUT:   %.loc13: i32 = int_literal 9 [template = constants.%.3]
    83. 

  83. // CHECK:STDOUT:   assign %a.ref.loc13, %.loc13
    84. 

  84. // CHECK:STDOUT:   %int.make_type_32.loc15_11: init type = call constants.%Int32() [template = i32]
    85. 

  85. // CHECK:STDOUT:   %int.make_type_32.loc15_16: init type = call constants.%Int32() [template = i32]
    86. 

  86. // CHECK:STDOUT:   %.loc15_19.1: %.4 = tuple_literal (%int.make_type_32.loc15_11, %int.make_type_32.loc15_16)
    87. 

  87. // CHECK:STDOUT:   %.loc15_19.2: type = value_of_initializer %int.make_type_32.loc15_11 [template = i32]
    88. 

  88. // CHECK:STDOUT:   %.loc15_19.3: type = converted %int.make_type_32.loc15_11, %.loc15_19.2 [template = i32]
    89. 

  89. // CHECK:STDOUT:   %.loc15_19.4: type = value_of_initializer %int.make_type_32.loc15_16 [template = i32]
    90. 

  90. // CHECK:STDOUT:   %.loc15_19.5: type = converted %int.make_type_32.loc15_16, %.loc15_19.4 [template = i32]
    91. 

  91. // CHECK:STDOUT:   %.loc15_19.6: type = converted %.loc15_19.1, constants.%.5 [template = constants.%.5]
    92. 

  92. // CHECK:STDOUT:   %b.var: ref %.5 = var b
    93. 

  93. // CHECK:STDOUT:   %b: ref %.5 = bind_name b, %b.var
    94. 

  94. // CHECK:STDOUT:   %.loc15_24: i32 = int_literal 1 [template = constants.%.7]
    95. 

  95. // CHECK:STDOUT:   %.loc15_27: i32 = int_literal 2 [template = constants.%.8]
    96. 

  96. // CHECK:STDOUT:   %.loc15_28.1: %.5 = tuple_literal (%.loc15_24, %.loc15_27)
    97. 

  97. // CHECK:STDOUT:   %.loc15_28.2: ref i32 = tuple_access %b.var, element0
    98. 

  98. // CHECK:STDOUT:   %.loc15_28.3: init i32 = initialize_from %.loc15_24 to %.loc15_28.2 [template = constants.%.7]
    99. 

  99. // CHECK:STDOUT:   %.loc15_28.4: ref i32 = tuple_access %b.var, element1
    100. 

  100. // CHECK:STDOUT:   %.loc15_28.5: init i32 = initialize_from %.loc15_27 to %.loc15_28.4 [template = constants.%.8]
    101. 

  101. // CHECK:STDOUT:   %.loc15_28.6: init %.5 = tuple_init (%.loc15_28.3, %.loc15_28.5) to %b.var [template = constants.%tuple]
    102. 

  102. // CHECK:STDOUT:   %.loc15_29: init %.5 = converted %.loc15_28.1, %.loc15_28.6 [template = constants.%tuple]
    103. 

  103. // CHECK:STDOUT:   assign %b.var, %.loc15_29
    104. 

  104. // CHECK:STDOUT:   %b.ref.loc16: ref %.5 = name_ref b, %b
    105. 

  105. // CHECK:STDOUT:   %.loc16_5: i32 = int_literal 0 [template = constants.%.9]
    106. 

  106. // CHECK:STDOUT:   %.loc16_6: ref i32 = tuple_index %b.ref.loc16, %.loc16_5
    107. 

  107. // CHECK:STDOUT:   %.loc16_10: i32 = int_literal 3 [template = constants.%.10]
    108. 

  108. // CHECK:STDOUT:   assign %.loc16_6, %.loc16_10
    109. 

  109. // CHECK:STDOUT:   %b.ref.loc17: ref %.5 = name_ref b, %b
    110. 

  110. // CHECK:STDOUT:   %.loc17_5: i32 = int_literal 1 [template = constants.%.7]
    111. 

  111. // CHECK:STDOUT:   %.loc17_6: ref i32 = tuple_index %b.ref.loc17, %.loc17_5
    112. 

  112. // CHECK:STDOUT:   %.loc17_10: i32 = int_literal 4 [template = constants.%.11]
    113. 

  113. // CHECK:STDOUT:   assign %.loc17_6, %.loc17_10
    114. 

  114. // CHECK:STDOUT:   %int.make_type_32.loc19_15: init type = call constants.%Int32() [template = i32]
    115. 

  115. // CHECK:STDOUT:   %.loc19_15.1: type = value_of_initializer %int.make_type_32.loc19_15 [template = i32]
    116. 

  116. // CHECK:STDOUT:   %.loc19_15.2: type = converted %int.make_type_32.loc19_15, %.loc19_15.1 [template = i32]
    117. 

  117. // CHECK:STDOUT:   %int.make_type_32.loc19_24: init type = call constants.%Int32() [template = i32]
    118. 

  118. // CHECK:STDOUT:   %.loc19_24.1: type = value_of_initializer %int.make_type_32.loc19_24 [template = i32]
    119. 

  119. // CHECK:STDOUT:   %.loc19_24.2: type = converted %int.make_type_32.loc19_24, %.loc19_24.1 [template = i32]
    120. 

  120. // CHECK:STDOUT:   %.loc19_27: type = struct_type {.a: i32, .b: i32} [template = constants.%.12]
    121. 

  121. // CHECK:STDOUT:   %c.var: ref %.12 = var c
    122. 

  122. // CHECK:STDOUT:   %c: ref %.12 = bind_name c, %c.var
    123. 

  123. // CHECK:STDOUT:   %.loc19_37: i32 = int_literal 1 [template = constants.%.7]
    124. 

  124. // CHECK:STDOUT:   %.loc19_45: i32 = int_literal 2 [template = constants.%.8]
    125. 

  125. // CHECK:STDOUT:   %.loc19_46.1: %.12 = struct_literal (%.loc19_37, %.loc19_45)
    126. 

  126. // CHECK:STDOUT:   %.loc19_46.2: ref i32 = struct_access %c.var, element0
    127. 

  127. // CHECK:STDOUT:   %.loc19_46.3: init i32 = initialize_from %.loc19_37 to %.loc19_46.2 [template = constants.%.7]
    128. 

  128. // CHECK:STDOUT:   %.loc19_46.4: ref i32 = struct_access %c.var, element1
    129. 

  129. // CHECK:STDOUT:   %.loc19_46.5: init i32 = initialize_from %.loc19_45 to %.loc19_46.4 [template = constants.%.8]
    130. 

  130. // CHECK:STDOUT:   %.loc19_46.6: init %.12 = struct_init (%.loc19_46.3, %.loc19_46.5) to %c.var [template = constants.%struct]
    131. 

  131. // CHECK:STDOUT:   %.loc19_47: init %.12 = converted %.loc19_46.1, %.loc19_46.6 [template = constants.%struct]
    132. 

  132. // CHECK:STDOUT:   assign %c.var, %.loc19_47
    133. 

  133. // CHECK:STDOUT:   %c.ref.loc20: ref %.12 = name_ref c, %c
    134. 

  134. // CHECK:STDOUT:   %.loc20_4: ref i32 = struct_access %c.ref.loc20, element0
    135. 

  135. // CHECK:STDOUT:   %.loc20_9: i32 = int_literal 3 [template = constants.%.10]
    136. 

  136. // CHECK:STDOUT:   assign %.loc20_4, %.loc20_9
    137. 

  137. // CHECK:STDOUT:   %c.ref.loc21: ref %.12 = name_ref c, %c
    138. 

  138. // CHECK:STDOUT:   %.loc21_4: ref i32 = struct_access %c.ref.loc21, element1
    139. 

  139. // CHECK:STDOUT:   %.loc21_9: i32 = int_literal 4 [template = constants.%.11]
    140. 

  140. // CHECK:STDOUT:   assign %.loc21_4, %.loc21_9
    141. 

  141. // CHECK:STDOUT:   %int.make_type_32.loc23: init type = call constants.%Int32() [template = i32]
    142. 

  142. // CHECK:STDOUT:   %.loc23_13.1: type = value_of_initializer %int.make_type_32.loc23 [template = i32]
    143. 

  143. // CHECK:STDOUT:   %.loc23_13.2: type = converted %int.make_type_32.loc23, %.loc23_13.1 [template = i32]
    144. 

  144. // CHECK:STDOUT:   %.loc23_13.3: type = ptr_type i32 [template = constants.%.14]
    145. 

  145. // CHECK:STDOUT:   %p.var: ref %.14 = var p
    146. 

  146. // CHECK:STDOUT:   %p: ref %.14 = bind_name p, %p.var
    147. 

  147. // CHECK:STDOUT:   %a.ref.loc23: ref i32 = name_ref a, %a
    148. 

  148. // CHECK:STDOUT:   %.loc23_17: %.14 = addr_of %a.ref.loc23
    149. 

  149. // CHECK:STDOUT:   assign %p.var, %.loc23_17
    150. 

  150. // CHECK:STDOUT:   %p.ref.loc24: ref %.14 = name_ref p, %p
    151. 

  151. // CHECK:STDOUT:   %.loc24_4: %.14 = bind_value %p.ref.loc24
    152. 

  152. // CHECK:STDOUT:   %.loc24_3: ref i32 = deref %.loc24_4
    153. 

  153. // CHECK:STDOUT:   %.loc24_8: i32 = int_literal 5 [template = constants.%.15]
    154. 

  154. // CHECK:STDOUT:   assign %.loc24_3, %.loc24_8
    155. 

  155. // CHECK:STDOUT:   %.loc26_8: bool = bool_literal true [template = constants.%.16]
    156. 

  156. // CHECK:STDOUT:   if %.loc26_8 br !if.expr.then else br !if.expr.else
    157. 

  157. // CHECK:STDOUT:
    158. 

  158. // CHECK:STDOUT: !if.expr.then:
    159. 

  159. // CHECK:STDOUT:   %p.ref.loc26: ref %.14 = name_ref p, %p
    160. 

  160. // CHECK:STDOUT:   %.loc26_18: %.14 = bind_value %p.ref.loc26
    161. 

  161. // CHECK:STDOUT:   br !if.expr.result(%.loc26_18)
    162. 

  162. // CHECK:STDOUT:
    163. 

  163. // CHECK:STDOUT: !if.expr.else:
    164. 

  164. // CHECK:STDOUT:   %a.ref.loc26: ref i32 = name_ref a, %a
    165. 

  165. // CHECK:STDOUT:   %.loc26_25: %.14 = addr_of %a.ref.loc26
    166. 

  166. // CHECK:STDOUT:   br !if.expr.result(%.loc26_25)
    167. 

  167. // CHECK:STDOUT:
    168. 

  168. // CHECK:STDOUT: !if.expr.result:
    169. 

  169. // CHECK:STDOUT:   %.loc26_5: %.14 = block_arg !if.expr.result
    170. 

  170. // CHECK:STDOUT:   %.loc26_3: ref i32 = deref %.loc26_5
    171. 

  171. // CHECK:STDOUT:   %.loc26_31: i32 = int_literal 10 [template = constants.%.17]
    172. 

  172. // CHECK:STDOUT:   assign %.loc26_3, %.loc26_31
    173. 

  173. // CHECK:STDOUT:   return
    174. 

  174. // CHECK:STDOUT: }
    175. 

  175. // CHECK:STDOUT:
    176. 

  176. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
    177. 

  177. // CHECK:STDOUT:
    178.