usub.carbon 15 KB

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  1. // Part of the Carbon Language project, under the Apache License v2.0 with LLVM
  2. // Exceptions. See /LICENSE for license information.
  3. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  4. //
  5. // AUTOUPDATE
  6. // TIP: To test this file alone, run:
  7. // TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/check/testdata/builtins/int/usub.carbon
  8. // TIP: To dump output, run:
  9. // TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/check/testdata/builtins/int/usub.carbon
  10. // --- int_sub.carbon
  11. fn Sub(a: i32, b: i32) -> i32 = "int.usub";
  12. var arr: [i32; Sub(3, 2)];
  13. let arr_p: [i32; 1]* = &arr;
  14. fn RuntimeCall(a: i32, b: i32) -> i32 {
  15. return Sub(a, b);
  16. }
  17. // --- overflow.carbon
  18. package Overflow;
  19. fn Sub(a: i32, b: i32) -> i32 = "int.usub";
  20. let a: i32 = Sub(0, 0x7FFFFFFF);
  21. let b: i32 = Sub(Sub(0, 0x7FFFFFFF), 1);
  22. let c: i32 = Sub(Sub(0, 0x7FFFFFFF), 2);
  23. // CHECK:STDOUT: --- int_sub.carbon
  24. // CHECK:STDOUT:
  25. // CHECK:STDOUT: constants {
  26. // CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
  27. // CHECK:STDOUT: %.1: type = tuple_type () [template]
  28. // CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
  29. // CHECK:STDOUT: %Sub.type: type = fn_type @Sub [template]
  30. // CHECK:STDOUT: %Sub: %Sub.type = struct_value () [template]
  31. // CHECK:STDOUT: %.2: i32 = int_literal 3 [template]
  32. // CHECK:STDOUT: %.3: i32 = int_literal 2 [template]
  33. // CHECK:STDOUT: %.4: i32 = int_literal 1 [template]
  34. // CHECK:STDOUT: %.5: type = array_type %.4, i32 [template]
  35. // CHECK:STDOUT: %.6: type = ptr_type %.5 [template]
  36. // CHECK:STDOUT: %RuntimeCall.type: type = fn_type @RuntimeCall [template]
  37. // CHECK:STDOUT: %RuntimeCall: %RuntimeCall.type = struct_value () [template]
  38. // CHECK:STDOUT: }
  39. // CHECK:STDOUT:
  40. // CHECK:STDOUT: imports {
  41. // CHECK:STDOUT: %import_ref.1: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  42. // CHECK:STDOUT: %import_ref.2: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  43. // CHECK:STDOUT: %import_ref.3: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  44. // CHECK:STDOUT: %import_ref.4: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  45. // CHECK:STDOUT: %import_ref.5: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  46. // CHECK:STDOUT: %import_ref.6: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  47. // CHECK:STDOUT: %import_ref.7: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  48. // CHECK:STDOUT: %import_ref.8: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  49. // CHECK:STDOUT: }
  50. // CHECK:STDOUT:
  51. // CHECK:STDOUT: file {
  52. // CHECK:STDOUT: package: <namespace> = namespace [template] {
  53. // CHECK:STDOUT: .Core = %Core
  54. // CHECK:STDOUT: .Sub = %Sub.decl
  55. // CHECK:STDOUT: .arr = %arr
  56. // CHECK:STDOUT: .arr_p = @__global_init.%arr_p
  57. // CHECK:STDOUT: .RuntimeCall = %RuntimeCall.decl
  58. // CHECK:STDOUT: }
  59. // CHECK:STDOUT: %Core.import = import Core
  60. // CHECK:STDOUT: %Core: <namespace> = namespace %Core.import, [template] {}
  61. // CHECK:STDOUT: %Sub.decl: %Sub.type = fn_decl @Sub [template = constants.%Sub] {
  62. // CHECK:STDOUT: %int.make_type_32.loc2_11: init type = call constants.%Int32() [template = i32]
  63. // CHECK:STDOUT: %.loc2_11.1: type = value_of_initializer %int.make_type_32.loc2_11 [template = i32]
  64. // CHECK:STDOUT: %.loc2_11.2: type = converted %int.make_type_32.loc2_11, %.loc2_11.1 [template = i32]
  65. // CHECK:STDOUT: %a.loc2_8.1: i32 = param a
  66. // CHECK:STDOUT: @Sub.%a: i32 = bind_name a, %a.loc2_8.1
  67. // CHECK:STDOUT: %int.make_type_32.loc2_19: init type = call constants.%Int32() [template = i32]
  68. // CHECK:STDOUT: %.loc2_19.1: type = value_of_initializer %int.make_type_32.loc2_19 [template = i32]
  69. // CHECK:STDOUT: %.loc2_19.2: type = converted %int.make_type_32.loc2_19, %.loc2_19.1 [template = i32]
  70. // CHECK:STDOUT: %b.loc2_16.1: i32 = param b
  71. // CHECK:STDOUT: @Sub.%b: i32 = bind_name b, %b.loc2_16.1
  72. // CHECK:STDOUT: %int.make_type_32.loc2_27: init type = call constants.%Int32() [template = i32]
  73. // CHECK:STDOUT: %.loc2_27.1: type = value_of_initializer %int.make_type_32.loc2_27 [template = i32]
  74. // CHECK:STDOUT: %.loc2_27.2: type = converted %int.make_type_32.loc2_27, %.loc2_27.1 [template = i32]
  75. // CHECK:STDOUT: @Sub.%return: ref i32 = var <return slot>
  76. // CHECK:STDOUT: }
  77. // CHECK:STDOUT: %int.make_type_32.loc4: init type = call constants.%Int32() [template = i32]
  78. // CHECK:STDOUT: %Sub.ref: %Sub.type = name_ref Sub, %Sub.decl [template = constants.%Sub]
  79. // CHECK:STDOUT: %.loc4_20: i32 = int_literal 3 [template = constants.%.2]
  80. // CHECK:STDOUT: %.loc4_23: i32 = int_literal 2 [template = constants.%.3]
  81. // CHECK:STDOUT: %int.usub: init i32 = call %Sub.ref(%.loc4_20, %.loc4_23) [template = constants.%.4]
  82. // CHECK:STDOUT: %.loc4_11.1: type = value_of_initializer %int.make_type_32.loc4 [template = i32]
  83. // CHECK:STDOUT: %.loc4_11.2: type = converted %int.make_type_32.loc4, %.loc4_11.1 [template = i32]
  84. // CHECK:STDOUT: %.loc4_25: type = array_type %int.usub, i32 [template = constants.%.5]
  85. // CHECK:STDOUT: %arr.var: ref %.5 = var arr
  86. // CHECK:STDOUT: %arr: ref %.5 = bind_name arr, %arr.var
  87. // CHECK:STDOUT: %int.make_type_32.loc5: init type = call constants.%Int32() [template = i32]
  88. // CHECK:STDOUT: %.loc5_18: i32 = int_literal 1 [template = constants.%.4]
  89. // CHECK:STDOUT: %.loc5_13.1: type = value_of_initializer %int.make_type_32.loc5 [template = i32]
  90. // CHECK:STDOUT: %.loc5_13.2: type = converted %int.make_type_32.loc5, %.loc5_13.1 [template = i32]
  91. // CHECK:STDOUT: %.loc5_19: type = array_type %.loc5_18, i32 [template = constants.%.5]
  92. // CHECK:STDOUT: %.loc5_20: type = ptr_type %.5 [template = constants.%.6]
  93. // CHECK:STDOUT: %RuntimeCall.decl: %RuntimeCall.type = fn_decl @RuntimeCall [template = constants.%RuntimeCall] {
  94. // CHECK:STDOUT: %int.make_type_32.loc7_19: init type = call constants.%Int32() [template = i32]
  95. // CHECK:STDOUT: %.loc7_19.1: type = value_of_initializer %int.make_type_32.loc7_19 [template = i32]
  96. // CHECK:STDOUT: %.loc7_19.2: type = converted %int.make_type_32.loc7_19, %.loc7_19.1 [template = i32]
  97. // CHECK:STDOUT: %a.loc7_16.1: i32 = param a
  98. // CHECK:STDOUT: @RuntimeCall.%a: i32 = bind_name a, %a.loc7_16.1
  99. // CHECK:STDOUT: %int.make_type_32.loc7_27: init type = call constants.%Int32() [template = i32]
  100. // CHECK:STDOUT: %.loc7_27.1: type = value_of_initializer %int.make_type_32.loc7_27 [template = i32]
  101. // CHECK:STDOUT: %.loc7_27.2: type = converted %int.make_type_32.loc7_27, %.loc7_27.1 [template = i32]
  102. // CHECK:STDOUT: %b.loc7_24.1: i32 = param b
  103. // CHECK:STDOUT: @RuntimeCall.%b: i32 = bind_name b, %b.loc7_24.1
  104. // CHECK:STDOUT: %int.make_type_32.loc7_35: init type = call constants.%Int32() [template = i32]
  105. // CHECK:STDOUT: %.loc7_35.1: type = value_of_initializer %int.make_type_32.loc7_35 [template = i32]
  106. // CHECK:STDOUT: %.loc7_35.2: type = converted %int.make_type_32.loc7_35, %.loc7_35.1 [template = i32]
  107. // CHECK:STDOUT: @RuntimeCall.%return: ref i32 = var <return slot>
  108. // CHECK:STDOUT: }
  109. // CHECK:STDOUT: }
  110. // CHECK:STDOUT:
  111. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
  112. // CHECK:STDOUT:
  113. // CHECK:STDOUT: fn @Sub(%a: i32, %b: i32) -> i32 = "int.usub";
  114. // CHECK:STDOUT:
  115. // CHECK:STDOUT: fn @RuntimeCall(%a: i32, %b: i32) -> i32 {
  116. // CHECK:STDOUT: !entry:
  117. // CHECK:STDOUT: %Sub.ref: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  118. // CHECK:STDOUT: %a.ref: i32 = name_ref a, %a
  119. // CHECK:STDOUT: %b.ref: i32 = name_ref b, %b
  120. // CHECK:STDOUT: %int.usub: init i32 = call %Sub.ref(%a.ref, %b.ref)
  121. // CHECK:STDOUT: %.loc8_19.1: i32 = value_of_initializer %int.usub
  122. // CHECK:STDOUT: %.loc8_19.2: i32 = converted %int.usub, %.loc8_19.1
  123. // CHECK:STDOUT: return %.loc8_19.2
  124. // CHECK:STDOUT: }
  125. // CHECK:STDOUT:
  126. // CHECK:STDOUT: fn @__global_init() {
  127. // CHECK:STDOUT: !entry:
  128. // CHECK:STDOUT: %arr.ref: ref %.5 = name_ref arr, file.%arr
  129. // CHECK:STDOUT: %.loc5: %.6 = addr_of %arr.ref
  130. // CHECK:STDOUT: %arr_p: %.6 = bind_name arr_p, %.loc5
  131. // CHECK:STDOUT: return
  132. // CHECK:STDOUT: }
  133. // CHECK:STDOUT:
  134. // CHECK:STDOUT: --- overflow.carbon
  135. // CHECK:STDOUT:
  136. // CHECK:STDOUT: constants {
  137. // CHECK:STDOUT: %Int32.type: type = fn_type @Int32 [template]
  138. // CHECK:STDOUT: %.1: type = tuple_type () [template]
  139. // CHECK:STDOUT: %Int32: %Int32.type = struct_value () [template]
  140. // CHECK:STDOUT: %Sub.type: type = fn_type @Sub [template]
  141. // CHECK:STDOUT: %Sub: %Sub.type = struct_value () [template]
  142. // CHECK:STDOUT: %.2: i32 = int_literal 0 [template]
  143. // CHECK:STDOUT: %.3: i32 = int_literal 2147483647 [template]
  144. // CHECK:STDOUT: %.4: i32 = int_literal -2147483647 [template]
  145. // CHECK:STDOUT: %.5: i32 = int_literal 1 [template]
  146. // CHECK:STDOUT: %.6: i32 = int_literal -2147483648 [template]
  147. // CHECK:STDOUT: %.7: i32 = int_literal 2 [template]
  148. // CHECK:STDOUT: }
  149. // CHECK:STDOUT:
  150. // CHECK:STDOUT: imports {
  151. // CHECK:STDOUT: %import_ref.1: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  152. // CHECK:STDOUT: %import_ref.2: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  153. // CHECK:STDOUT: %import_ref.3: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  154. // CHECK:STDOUT: %import_ref.4: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  155. // CHECK:STDOUT: %import_ref.5: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  156. // CHECK:STDOUT: %import_ref.6: %Int32.type = import_ref ir3, inst+4, loaded [template = constants.%Int32]
  157. // CHECK:STDOUT: }
  158. // CHECK:STDOUT:
  159. // CHECK:STDOUT: file {
  160. // CHECK:STDOUT: package: <namespace> = namespace [template] {
  161. // CHECK:STDOUT: .Core = %Core
  162. // CHECK:STDOUT: .Sub = %Sub.decl
  163. // CHECK:STDOUT: .a = @__global_init.%a
  164. // CHECK:STDOUT: .b = @__global_init.%b
  165. // CHECK:STDOUT: .c = @__global_init.%c
  166. // CHECK:STDOUT: }
  167. // CHECK:STDOUT: %Core.import = import Core
  168. // CHECK:STDOUT: %Core: <namespace> = namespace %Core.import, [template] {}
  169. // CHECK:STDOUT: %Sub.decl: %Sub.type = fn_decl @Sub [template = constants.%Sub] {
  170. // CHECK:STDOUT: %int.make_type_32.loc4_11: init type = call constants.%Int32() [template = i32]
  171. // CHECK:STDOUT: %.loc4_11.1: type = value_of_initializer %int.make_type_32.loc4_11 [template = i32]
  172. // CHECK:STDOUT: %.loc4_11.2: type = converted %int.make_type_32.loc4_11, %.loc4_11.1 [template = i32]
  173. // CHECK:STDOUT: %a.loc4_8.1: i32 = param a
  174. // CHECK:STDOUT: @Sub.%a: i32 = bind_name a, %a.loc4_8.1
  175. // CHECK:STDOUT: %int.make_type_32.loc4_19: init type = call constants.%Int32() [template = i32]
  176. // CHECK:STDOUT: %.loc4_19.1: type = value_of_initializer %int.make_type_32.loc4_19 [template = i32]
  177. // CHECK:STDOUT: %.loc4_19.2: type = converted %int.make_type_32.loc4_19, %.loc4_19.1 [template = i32]
  178. // CHECK:STDOUT: %b.loc4_16.1: i32 = param b
  179. // CHECK:STDOUT: @Sub.%b: i32 = bind_name b, %b.loc4_16.1
  180. // CHECK:STDOUT: %int.make_type_32.loc4_27: init type = call constants.%Int32() [template = i32]
  181. // CHECK:STDOUT: %.loc4_27.1: type = value_of_initializer %int.make_type_32.loc4_27 [template = i32]
  182. // CHECK:STDOUT: %.loc4_27.2: type = converted %int.make_type_32.loc4_27, %.loc4_27.1 [template = i32]
  183. // CHECK:STDOUT: @Sub.%return: ref i32 = var <return slot>
  184. // CHECK:STDOUT: }
  185. // CHECK:STDOUT: %int.make_type_32.loc6: init type = call constants.%Int32() [template = i32]
  186. // CHECK:STDOUT: %.loc6_8.1: type = value_of_initializer %int.make_type_32.loc6 [template = i32]
  187. // CHECK:STDOUT: %.loc6_8.2: type = converted %int.make_type_32.loc6, %.loc6_8.1 [template = i32]
  188. // CHECK:STDOUT: %int.make_type_32.loc7: init type = call constants.%Int32() [template = i32]
  189. // CHECK:STDOUT: %.loc7_8.1: type = value_of_initializer %int.make_type_32.loc7 [template = i32]
  190. // CHECK:STDOUT: %.loc7_8.2: type = converted %int.make_type_32.loc7, %.loc7_8.1 [template = i32]
  191. // CHECK:STDOUT: %int.make_type_32.loc8: init type = call constants.%Int32() [template = i32]
  192. // CHECK:STDOUT: %.loc8_8.1: type = value_of_initializer %int.make_type_32.loc8 [template = i32]
  193. // CHECK:STDOUT: %.loc8_8.2: type = converted %int.make_type_32.loc8, %.loc8_8.1 [template = i32]
  194. // CHECK:STDOUT: }
  195. // CHECK:STDOUT:
  196. // CHECK:STDOUT: fn @Int32() -> type = "int.make_type_32";
  197. // CHECK:STDOUT:
  198. // CHECK:STDOUT: fn @Sub(%a: i32, %b: i32) -> i32 = "int.usub";
  199. // CHECK:STDOUT:
  200. // CHECK:STDOUT: fn @__global_init() {
  201. // CHECK:STDOUT: !entry:
  202. // CHECK:STDOUT: %Sub.ref.loc6: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  203. // CHECK:STDOUT: %.loc6_18: i32 = int_literal 0 [template = constants.%.2]
  204. // CHECK:STDOUT: %.loc6_21: i32 = int_literal 2147483647 [template = constants.%.3]
  205. // CHECK:STDOUT: %int.usub.loc6: init i32 = call %Sub.ref.loc6(%.loc6_18, %.loc6_21) [template = constants.%.4]
  206. // CHECK:STDOUT: %.loc6_32.1: i32 = value_of_initializer %int.usub.loc6 [template = constants.%.4]
  207. // CHECK:STDOUT: %.loc6_32.2: i32 = converted %int.usub.loc6, %.loc6_32.1 [template = constants.%.4]
  208. // CHECK:STDOUT: %a: i32 = bind_name a, %.loc6_32.2
  209. // CHECK:STDOUT: %Sub.ref.loc7_14: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  210. // CHECK:STDOUT: %Sub.ref.loc7_18: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  211. // CHECK:STDOUT: %.loc7_22: i32 = int_literal 0 [template = constants.%.2]
  212. // CHECK:STDOUT: %.loc7_25: i32 = int_literal 2147483647 [template = constants.%.3]
  213. // CHECK:STDOUT: %int.usub.loc7_21: init i32 = call %Sub.ref.loc7_18(%.loc7_22, %.loc7_25) [template = constants.%.4]
  214. // CHECK:STDOUT: %.loc7_38: i32 = int_literal 1 [template = constants.%.5]
  215. // CHECK:STDOUT: %.loc7_17.1: i32 = value_of_initializer %int.usub.loc7_21 [template = constants.%.4]
  216. // CHECK:STDOUT: %.loc7_17.2: i32 = converted %int.usub.loc7_21, %.loc7_17.1 [template = constants.%.4]
  217. // CHECK:STDOUT: %int.usub.loc7_17: init i32 = call %Sub.ref.loc7_14(%.loc7_17.2, %.loc7_38) [template = constants.%.6]
  218. // CHECK:STDOUT: %.loc7_40.1: i32 = value_of_initializer %int.usub.loc7_17 [template = constants.%.6]
  219. // CHECK:STDOUT: %.loc7_40.2: i32 = converted %int.usub.loc7_17, %.loc7_40.1 [template = constants.%.6]
  220. // CHECK:STDOUT: %b: i32 = bind_name b, %.loc7_40.2
  221. // CHECK:STDOUT: %Sub.ref.loc8_14: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  222. // CHECK:STDOUT: %Sub.ref.loc8_18: %Sub.type = name_ref Sub, file.%Sub.decl [template = constants.%Sub]
  223. // CHECK:STDOUT: %.loc8_22: i32 = int_literal 0 [template = constants.%.2]
  224. // CHECK:STDOUT: %.loc8_25: i32 = int_literal 2147483647 [template = constants.%.3]
  225. // CHECK:STDOUT: %int.usub.loc8_21: init i32 = call %Sub.ref.loc8_18(%.loc8_22, %.loc8_25) [template = constants.%.4]
  226. // CHECK:STDOUT: %.loc8_38: i32 = int_literal 2 [template = constants.%.7]
  227. // CHECK:STDOUT: %.loc8_17.1: i32 = value_of_initializer %int.usub.loc8_21 [template = constants.%.4]
  228. // CHECK:STDOUT: %.loc8_17.2: i32 = converted %int.usub.loc8_21, %.loc8_17.1 [template = constants.%.4]
  229. // CHECK:STDOUT: %int.usub.loc8_17: init i32 = call %Sub.ref.loc8_14(%.loc8_17.2, %.loc8_38) [template = constants.%.3]
  230. // CHECK:STDOUT: %.loc8_40.1: i32 = value_of_initializer %int.usub.loc8_17 [template = constants.%.3]
  231. // CHECK:STDOUT: %.loc8_40.2: i32 = converted %int.usub.loc8_17, %.loc8_40.1 [template = constants.%.3]
  232. // CHECK:STDOUT: %c: i32 = bind_name c, %.loc8_40.2
  233. // CHECK:STDOUT: return
  234. // CHECK:STDOUT: }
  235. // CHECK:STDOUT: