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carbon-lang
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carbon-lang
/
toolchain
/
lower
/
testdata
/
function
/
generic
/
call_different_specific.carbon

call_different_specific.carbon 12 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_specific.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_specific.carbon
    12. 

  12. 

  13. // Builds on call_basic.carbon and call_impl_function.carbon.
    14. 

  14. // Test that when equivalence is found for the specific fingerprint, we don't
    15. 

  15. // conclude "equivalent" for all the call graph.
    16. 

  16. 

  17. // The two calls to F have the same function type, but the corresponding
    18. 

  18. // definitions should not be coalesced. The function bodies of the two
    19. 

  19. // specifics of F look mostly identical: same type for the parameters,
    20. 

  20. // calling the same A and different specifics of B, with the same function
    21. 

  21. // type. The difference is discovered in the call graph inside the two B
    22. 

  22. // specifics, where the pointer values are different, and the calls to the
    23. 

  23. // two D specifics are to functions with different function types.
    24. 

  24. 

  25. fn A[U:! Core.Copy](x: U) -> U {
    26. 

  26.   return x;
    27. 

  27. }
    28. 

  28. 

  29. fn D[U:! Core.Copy](x: U) -> U {
    30. 

  30.   return x;
    31. 

  31. }
    32. 

  32. 

  33. fn B[U:! Core.Copy & Core.Destroy](x: U*) {
    34. 

  34.   D(*x);
    35. 

  35. }
    36. 

  36. 

  37. fn F[T:! Core.Copy & Core.Destroy](x: T*) {
    38. 

  38.   A(i32);
    39. 

  39.   B(x);
    40. 

  40. }
    41. 

  41. 

  42. fn M(ptr_i32: i32*, ptr_f64: f64*) {
    43. 

  43.   F(ptr_i32);
    44. 

  44.   F(ptr_f64);
    45. 

  45. }
    46. 

  46. 

  47. // CHECK:STDOUT: ; ModuleID = 'call_different_specific.carbon'
    48. 

  48. // CHECK:STDOUT: source_filename = "call_different_specific.carbon"
    49. 

  49. // CHECK:STDOUT:
    50. 

  50. // CHECK:STDOUT: %type = type {}
    51. 

  51. // CHECK:STDOUT:
    52. 

  52. // CHECK:STDOUT: ; Function Attrs: nounwind
    53. 

  53. // CHECK:STDOUT: define void @_CM.Main(ptr %ptr_i32, ptr %ptr_f64) #0 !dbg !4 {
    54. 

  54. // CHECK:STDOUT: entry:
    55. 

  55. // CHECK:STDOUT:   call void @_CF.Main.bfb441135f07cbe1(ptr %ptr_i32), !dbg !11
    56. 

  56. // CHECK:STDOUT:   call void @_CF.Main.29cf1dfeccef7249(ptr %ptr_f64), !dbg !12
    57. 

  57. // CHECK:STDOUT:   ret void, !dbg !13
    58. 

  58. // CHECK:STDOUT: }
    59. 

  59. // CHECK:STDOUT:
    60. 

  60. // CHECK:STDOUT: ; Function Attrs: nounwind
    61. 

  61. // CHECK:STDOUT: define weak_odr void @"_COp.7e389eab4a7e5487:core.Destroy.Core"(ptr %self) #0 !dbg !14 {
    62. 

  62. // CHECK:STDOUT: entry:
    63. 

  63. // CHECK:STDOUT:   ret void, !dbg !20
    64. 

  64. // CHECK:STDOUT: }
    65. 

  65. // CHECK:STDOUT:
    66. 

  66. // CHECK:STDOUT: ; Function Attrs: nounwind
    67. 

  67. // CHECK:STDOUT: define weak_odr void @"_COp.98006a366c2ffd6c:core.Destroy.Core"(ptr %self) #0 !dbg !21 {
    68. 

  68. // CHECK:STDOUT: entry:
    69. 

  69. // CHECK:STDOUT:   ret void, !dbg !26
    70. 

  70. // CHECK:STDOUT: }
    71. 

  71. // CHECK:STDOUT:
    72. 

  72. // CHECK:STDOUT: ; Function Attrs: nounwind
    73. 

  73. // CHECK:STDOUT: define linkonce_odr void @_CF.Main.bfb441135f07cbe1(ptr %x) #0 !dbg !27 {
    74. 

  74. // CHECK:STDOUT: entry:
    75. 

  75. // CHECK:STDOUT:   %A.call = call %type @_CA.Main.582d60b54baf6b63(%type zeroinitializer), !dbg !30
    76. 

  76. // CHECK:STDOUT:   call void @_CB.Main.bfb441135f07cbe1(ptr %x), !dbg !31
    77. 

  77. // CHECK:STDOUT:   ret void, !dbg !32
    78. 

  78. // CHECK:STDOUT: }
    79. 

  79. // CHECK:STDOUT:
    80. 

  80. // CHECK:STDOUT: ; Function Attrs: nounwind
    81. 

  81. // CHECK:STDOUT: define linkonce_odr void @_CF.Main.29cf1dfeccef7249(ptr %x) #0 !dbg !33 {
    82. 

  82. // CHECK:STDOUT: entry:
    83. 

  83. // CHECK:STDOUT:   %A.call = call %type @_CA.Main.582d60b54baf6b63(%type zeroinitializer), !dbg !36
    84. 

  84. // CHECK:STDOUT:   call void @_CB.Main.29cf1dfeccef7249(ptr %x), !dbg !37
    85. 

  85. // CHECK:STDOUT:   ret void, !dbg !38
    86. 

  86. // CHECK:STDOUT: }
    87. 

  87. // CHECK:STDOUT:
    88. 

  88. // CHECK:STDOUT: ; Function Attrs: nounwind
    89. 

  89. // CHECK:STDOUT: define linkonce_odr %type @_CA.Main.582d60b54baf6b63(%type %x) #0 !dbg !39 {
    90. 

  90. // CHECK:STDOUT: entry:
    91. 

  91. // CHECK:STDOUT:   ret %type %x, !dbg !44
    92. 

  92. // CHECK:STDOUT: }
    93. 

  93. // CHECK:STDOUT:
    94. 

  94. // CHECK:STDOUT: ; Function Attrs: nounwind
    95. 

  95. // CHECK:STDOUT: define linkonce_odr void @_CB.Main.bfb441135f07cbe1(ptr %x) #0 !dbg !45 {
    96. 

  96. // CHECK:STDOUT: entry:
    97. 

  97. // CHECK:STDOUT:   %.loc34_7.2.temp = alloca i32, align 4, !dbg !48
    98. 

  98. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc34_7.2.temp), !dbg !48
    99. 

  99. // CHECK:STDOUT:   %.loc34_5.2 = load i32, ptr %x, align 4, !dbg !49
    100. 

  100. // CHECK:STDOUT:   %D.call = call i32 @_CD.Main.64ccbb8e5d9a0b8e(i32 %.loc34_5.2), !dbg !48
    101. 

  101. // CHECK:STDOUT:   store i32 %D.call, ptr %.loc34_7.2.temp, align 4, !dbg !48
    102. 

  102. // CHECK:STDOUT:   call void @"_COp.7e389eab4a7e5487:core.Destroy.Core"(ptr %.loc34_7.2.temp), !dbg !48
    103. 

  103. // CHECK:STDOUT:   ret void, !dbg !50
    104. 

  104. // CHECK:STDOUT: }
    105. 

  105. // CHECK:STDOUT:
    106. 

  106. // CHECK:STDOUT: ; Function Attrs: nounwind
    107. 

  107. // CHECK:STDOUT: define linkonce_odr void @_CB.Main.29cf1dfeccef7249(ptr %x) #0 !dbg !51 {
    108. 

  108. // CHECK:STDOUT: entry:
    109. 

  109. // CHECK:STDOUT:   %.loc34_7.2.temp = alloca double, align 8, !dbg !54
    110. 

  110. // CHECK:STDOUT:   call void @llvm.lifetime.start.p0(ptr %.loc34_7.2.temp), !dbg !54
    111. 

  111. // CHECK:STDOUT:   %.loc34_5.2 = load double, ptr %x, align 8, !dbg !55
    112. 

  112. // CHECK:STDOUT:   %D.call = call double @_CD.Main.de5b400758c39a65(double %.loc34_5.2), !dbg !54
    113. 

  113. // CHECK:STDOUT:   store double %D.call, ptr %.loc34_7.2.temp, align 8, !dbg !54
    114. 

  114. // CHECK:STDOUT:   call void @"_COp.98006a366c2ffd6c:core.Destroy.Core"(ptr %.loc34_7.2.temp), !dbg !54
    115. 

  115. // CHECK:STDOUT:   ret void, !dbg !56
    116. 

  116. // CHECK:STDOUT: }
    117. 

  117. // CHECK:STDOUT:
    118. 

  118. // CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
    119. 

  119. // CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
    120. 

  120. // CHECK:STDOUT:
    121. 

  121. // CHECK:STDOUT: ; Function Attrs: nounwind
    122. 

  122. // CHECK:STDOUT: define linkonce_odr i32 @_CD.Main.64ccbb8e5d9a0b8e(i32 %x) #0 !dbg !57 {
    123. 

  123. // CHECK:STDOUT: entry:
    124. 

  124. // CHECK:STDOUT:   ret i32 %x, !dbg !62
    125. 

  125. // CHECK:STDOUT: }
    126. 

  126. // CHECK:STDOUT:
    127. 

  127. // CHECK:STDOUT: ; Function Attrs: nounwind
    128. 

  128. // CHECK:STDOUT: define linkonce_odr double @_CD.Main.de5b400758c39a65(double %x) #0 !dbg !63 {
    129. 

  129. // CHECK:STDOUT: entry:
    130. 

  130. // CHECK:STDOUT:   ret double %x, !dbg !66
    131. 

  131. // CHECK:STDOUT: }
    132. 

  132. // CHECK:STDOUT:
    133. 

  133. // CHECK:STDOUT: ; uselistorder directives
    134. 

  134. // CHECK:STDOUT: uselistorder ptr @_CA.Main.582d60b54baf6b63, { 1, 0 }
    135. 

  135. // CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
    136. 

  136. // CHECK:STDOUT:
    137. 

  137. // CHECK:STDOUT: attributes #0 = { nounwind }
    138. 

  138. // CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
    139. 

  139. // CHECK:STDOUT:
    140. 

  140. // CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
    141. 

  141. // CHECK:STDOUT: !llvm.dbg.cu = !{!2}
    142. 

  142. // CHECK:STDOUT:
    143. 

  143. // CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
    144. 

  144. // CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
    145. 

  145. // CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
    146. 

  146. // CHECK:STDOUT: !3 = !DIFile(filename: "call_different_specific.carbon", directory: "")
    147. 

  147. // CHECK:STDOUT: !4 = distinct !DISubprogram(name: "M", linkageName: "_CM.Main", scope: null, file: !3, line: 42, type: !5, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !8)
    148. 

  148. // CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
    149. 

  149. // CHECK:STDOUT: !6 = !{null, !7, !7}
    150. 

  150. // CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
    151. 

  151. // CHECK:STDOUT: !8 = !{!9, !10}
    152. 

  152. // CHECK:STDOUT: !9 = !DILocalVariable(arg: 1, scope: !4, type: !7)
    153. 

  153. // CHECK:STDOUT: !10 = !DILocalVariable(arg: 2, scope: !4, type: !7)
    154. 

  154. // CHECK:STDOUT: !11 = !DILocation(line: 43, column: 3, scope: !4)
    155. 

  155. // CHECK:STDOUT: !12 = !DILocation(line: 44, column: 3, scope: !4)
    156. 

  156. // CHECK:STDOUT: !13 = !DILocation(line: 42, column: 1, scope: !4)
    157. 

  157. // CHECK:STDOUT: !14 = distinct !DISubprogram(name: "Op", linkageName: "_COp.7e389eab4a7e5487:core.Destroy.Core", scope: null, file: !3, line: 43, type: !15, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !18)
    158. 

  158. // CHECK:STDOUT: !15 = !DISubroutineType(types: !16)
    159. 

  159. // CHECK:STDOUT: !16 = !{null, !17}
    160. 

  160. // CHECK:STDOUT: !17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
    161. 

  161. // CHECK:STDOUT: !18 = !{!19}
    162. 

  162. // CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !14, type: !17)
    163. 

  163. // CHECK:STDOUT: !20 = !DILocation(line: 43, column: 3, scope: !14)
    164. 

  164. // CHECK:STDOUT: !21 = distinct !DISubprogram(name: "Op", linkageName: "_COp.98006a366c2ffd6c:core.Destroy.Core", scope: null, file: !3, line: 44, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !24)
    165. 

  165. // CHECK:STDOUT: !22 = !DISubroutineType(types: !23)
    166. 

  166. // CHECK:STDOUT: !23 = !{null, !7}
    167. 

  167. // CHECK:STDOUT: !24 = !{!25}
    168. 

  168. // CHECK:STDOUT: !25 = !DILocalVariable(arg: 1, scope: !21, type: !7)
    169. 

  169. // CHECK:STDOUT: !26 = !DILocation(line: 44, column: 3, scope: !21)
    170. 

  170. // CHECK:STDOUT: !27 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.bfb441135f07cbe1", scope: null, file: !3, line: 37, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !28)
    171. 

  171. // CHECK:STDOUT: !28 = !{!29}
    172. 

  172. // CHECK:STDOUT: !29 = !DILocalVariable(arg: 1, scope: !27, type: !7)
    173. 

  173. // CHECK:STDOUT: !30 = !DILocation(line: 38, column: 3, scope: !27)
    174. 

  174. // CHECK:STDOUT: !31 = !DILocation(line: 39, column: 3, scope: !27)
    175. 

  175. // CHECK:STDOUT: !32 = !DILocation(line: 37, column: 1, scope: !27)
    176. 

  176. // CHECK:STDOUT: !33 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.29cf1dfeccef7249", scope: null, file: !3, line: 37, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !34)
    177. 

  177. // CHECK:STDOUT: !34 = !{!35}
    178. 

  178. // CHECK:STDOUT: !35 = !DILocalVariable(arg: 1, scope: !33, type: !7)
    179. 

  179. // CHECK:STDOUT: !36 = !DILocation(line: 38, column: 3, scope: !33)
    180. 

  180. // CHECK:STDOUT: !37 = !DILocation(line: 39, column: 3, scope: !33)
    181. 

  181. // CHECK:STDOUT: !38 = !DILocation(line: 37, column: 1, scope: !33)
    182. 

  182. // CHECK:STDOUT: !39 = distinct !DISubprogram(name: "A", linkageName: "_CA.Main.582d60b54baf6b63", scope: null, file: !3, line: 25, type: !40, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !42)
    183. 

  183. // CHECK:STDOUT: !40 = !DISubroutineType(types: !41)
    184. 

  184. // CHECK:STDOUT: !41 = !{!7, !7}
    185. 

  185. // CHECK:STDOUT: !42 = !{!43}
    186. 

  186. // CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !39, type: !7)
    187. 

  187. // CHECK:STDOUT: !44 = !DILocation(line: 26, column: 3, scope: !39)
    188. 

  188. // CHECK:STDOUT: !45 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.bfb441135f07cbe1", scope: null, file: !3, line: 33, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !46)
    189. 

  189. // CHECK:STDOUT: !46 = !{!47}
    190. 

  190. // CHECK:STDOUT: !47 = !DILocalVariable(arg: 1, scope: !45, type: !7)
    191. 

  191. // CHECK:STDOUT: !48 = !DILocation(line: 34, column: 3, scope: !45)
    192. 

  192. // CHECK:STDOUT: !49 = !DILocation(line: 34, column: 5, scope: !45)
    193. 

  193. // CHECK:STDOUT: !50 = !DILocation(line: 33, column: 1, scope: !45)
    194. 

  194. // CHECK:STDOUT: !51 = distinct !DISubprogram(name: "B", linkageName: "_CB.Main.29cf1dfeccef7249", scope: null, file: !3, line: 33, type: !22, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !52)
    195. 

  195. // CHECK:STDOUT: !52 = !{!53}
    196. 

  196. // CHECK:STDOUT: !53 = !DILocalVariable(arg: 1, scope: !51, type: !7)
    197. 

  197. // CHECK:STDOUT: !54 = !DILocation(line: 34, column: 3, scope: !51)
    198. 

  198. // CHECK:STDOUT: !55 = !DILocation(line: 34, column: 5, scope: !51)
    199. 

  199. // CHECK:STDOUT: !56 = !DILocation(line: 33, column: 1, scope: !51)
    200. 

  200. // CHECK:STDOUT: !57 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.64ccbb8e5d9a0b8e", scope: null, file: !3, line: 29, type: !58, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !60)
    201. 

  201. // CHECK:STDOUT: !58 = !DISubroutineType(types: !59)
    202. 

  202. // CHECK:STDOUT: !59 = !{!17, !17}
    203. 

  203. // CHECK:STDOUT: !60 = !{!61}
    204. 

  204. // CHECK:STDOUT: !61 = !DILocalVariable(arg: 1, scope: !57, type: !17)
    205. 

  205. // CHECK:STDOUT: !62 = !DILocation(line: 30, column: 3, scope: !57)
    206. 

  206. // CHECK:STDOUT: !63 = distinct !DISubprogram(name: "D", linkageName: "_CD.Main.de5b400758c39a65", scope: null, file: !3, line: 29, type: !40, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !64)
    207. 

  207. // CHECK:STDOUT: !64 = !{!65}
    208. 

  208. // CHECK:STDOUT: !65 = !DILocalVariable(arg: 1, scope: !63, type: !7)
    209. 

  209. // CHECK:STDOUT: !66 = !DILocation(line: 30, column: 3, scope: !63)
    210.