mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 22:02:41 +01:00
Dana Jansens
4416f3525b
Use a single `SemIR::Function` per `Core` interface method, whether it's generated locally or imported. This prevents generating duplicate functions, which lead to different types when the witness appears in a `FacetValue` as part of a specific for a class. We use a `CanonicalValueStore` of `GeneratedFunction` objects that allow finding an existing FunctionId for a `Generated` special function before (re-)generating it. Mangling for `Generated` functions is also moved to use the values from the `GeneratedFunction`'s canonicalization key, so that we have a consistent source of truth for the unique ID of a `Generated` function across all files. New tests are in `toolchain/check/testdata/impl/custom_witness/destroy.carbon`.
105 lines
5.4 KiB
Plaintext
105 lines
5.4 KiB
Plaintext
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/int.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/class/basic.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/class/basic.carbon
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class C {
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var a: i32;
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var b: C*;
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}
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fn F(c: C) -> C;
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fn Run() {
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var c: C;
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var _: C = F(c);
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}
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'basic.carbon'
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// CHECK:STDOUT: source_filename = "basic.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_CF.Main(ptr sret({ i32, ptr }), ptr)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define i32 @main() #0 !dbg !30 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %c.var = alloca { i32, ptr }, align 8, !dbg !31
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// CHECK:STDOUT: %_.var = alloca { i32, ptr }, align 8, !dbg !33
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c.var), !dbg !31
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !33
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// CHECK:STDOUT: call void @_CF.Main(ptr %_.var, ptr %c.var), !dbg !35
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// CHECK:STDOUT: call void @"_COp.08d9e38b928ba575:core.Destroy.Core"(ptr %_.var), !dbg !33
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// CHECK:STDOUT: call void @"_COp.08d9e38b928ba575:core.Destroy.Core"(ptr %c.var), !dbg !31
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// CHECK:STDOUT: ret i32 0, !dbg !37
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_COp.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !38 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !40
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_COp.09861f44a9b84abf:core.Destroy.Core"(ptr %self) #0 !dbg !42 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !44
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_COp.08d9e38b928ba575:core.Destroy.Core"(ptr %self) #0 !dbg !46 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !48
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #1
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder ptr @"_COp.08d9e38b928ba575:core.Destroy.Core", { 1, 0 }
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// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.dbg.cu = !{!19}
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// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !2 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !3 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !18 = !DIFile(filename: "basic.carbon", directory: "")
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// CHECK:STDOUT: !19 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !18, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !24 = !{!20}
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// CHECK:STDOUT: !25 = !DISubroutineType(types: !24)
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// CHECK:STDOUT: !26 = !{null, !20}
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// CHECK:STDOUT: !27 = !DISubroutineType(types: !26)
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// CHECK:STDOUT: !28 = !{null, !21}
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// CHECK:STDOUT: !29 = !DISubroutineType(types: !28)
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// CHECK:STDOUT: !30 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !18, line: 20, type: !25, spFlags: DISPFlagDefinition, unit: !19)
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// CHECK:STDOUT: !31 = !DILocation(line: 21, column: 3, scope: !30)
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// CHECK:STDOUT: !33 = !DILocation(line: 22, column: 3, scope: !30)
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// CHECK:STDOUT: !35 = !DILocation(line: 22, column: 14, scope: !30)
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// CHECK:STDOUT: !37 = !DILocation(line: 20, column: 1, scope: !30)
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// CHECK:STDOUT: !38 = distinct !DISubprogram(name: "Op", linkageName: "_COp.f58524831c37807e:core.Destroy.Core", scope: null, file: !18, line: 22, type: !27, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !41)
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// CHECK:STDOUT: !39 = !DILocalVariable(arg: 1, scope: !38, type: !20)
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// CHECK:STDOUT: !40 = !DILocation(line: 22, column: 3, scope: !38)
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// CHECK:STDOUT: !41 = !{!39}
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// CHECK:STDOUT: !42 = distinct !DISubprogram(name: "Op", linkageName: "_COp.09861f44a9b84abf:core.Destroy.Core", scope: null, file: !18, line: 22, type: !29, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !45)
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// CHECK:STDOUT: !43 = !DILocalVariable(arg: 1, scope: !42, type: !21)
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// CHECK:STDOUT: !44 = !DILocation(line: 22, column: 3, scope: !42)
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// CHECK:STDOUT: !45 = !{!43}
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// CHECK:STDOUT: !46 = distinct !DISubprogram(name: "Op", linkageName: "_COp.08d9e38b928ba575:core.Destroy.Core", scope: null, file: !18, line: 22, type: !29, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !49)
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// CHECK:STDOUT: !47 = !DILocalVariable(arg: 1, scope: !46, type: !21)
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// CHECK:STDOUT: !48 = !DILocation(line: 22, column: 3, scope: !46)
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// CHECK:STDOUT: !49 = !{!47}
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// CHECK:STDOUT:
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