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`.
91 lines
5.0 KiB
Plaintext
91 lines
5.0 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/struct/one_entry.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/struct/one_entry.carbon
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fn Run() -> i32 {
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var x: {.a: i32} = {.a = 4};
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var _: {.a: i32} = x;
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return 0;
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}
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'one_entry.carbon'
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// CHECK:STDOUT: source_filename = "one_entry.carbon"
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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 !28 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %x.var = alloca { i32 }, align 4, !dbg !31
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// CHECK:STDOUT: %_.var = alloca { i32 }, align 4, !dbg !33
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !31
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// CHECK:STDOUT: store { i32 } { i32 4 }, ptr %x.var, align 4, !dbg !31
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !33
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// CHECK:STDOUT: %.loc15_22.1.a = getelementptr inbounds nuw { i32 }, ptr %x.var, i32 0, i32 0, !dbg !34
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// CHECK:STDOUT: %.loc15_22.2 = load i32, ptr %.loc15_22.1.a, align 4, !dbg !34
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// CHECK:STDOUT: %.loc15_22.3.struct.init = insertvalue { i32 } poison, i32 %.loc15_22.2, 0, !dbg !34
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// CHECK:STDOUT: store { i32 } %.loc15_22.3.struct.init, ptr %_.var, align 4, !dbg !33
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// CHECK:STDOUT: call void @"_COp.a9280e8bea6fc5f9:core.Destroy.Core"(ptr %_.var), !dbg !33
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// CHECK:STDOUT: call void @"_COp.a9280e8bea6fc5f9:core.Destroy.Core"(ptr %x.var), !dbg !31
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// CHECK:STDOUT: ret i32 0, !dbg !36
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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 !37 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !39
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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.a9280e8bea6fc5f9:core.Destroy.Core"(ptr %self) #0 !dbg !41 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !43
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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.a9280e8bea6fc5f9: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: "one_entry.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 = !{!20}
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// CHECK:STDOUT: !22 = !DISubroutineType(types: !21)
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// CHECK:STDOUT: !23 = !{null, !20}
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// CHECK:STDOUT: !24 = !DISubroutineType(types: !23)
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// CHECK:STDOUT: !25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !26 = !{null, !25}
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// CHECK:STDOUT: !27 = !DISubroutineType(types: !26)
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// CHECK:STDOUT: !28 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !18, line: 13, type: !22, spFlags: DISPFlagDefinition, unit: !19)
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// CHECK:STDOUT: !31 = !DILocation(line: 14, column: 3, scope: !28)
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// CHECK:STDOUT: !33 = !DILocation(line: 15, column: 3, scope: !28)
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// CHECK:STDOUT: !34 = !DILocation(line: 15, column: 22, scope: !28)
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// CHECK:STDOUT: !36 = !DILocation(line: 16, column: 3, scope: !28)
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// CHECK:STDOUT: !37 = distinct !DISubprogram(name: "Op", linkageName: "_COp.f58524831c37807e:core.Destroy.Core", scope: null, file: !18, line: 15, type: !24, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !40)
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// CHECK:STDOUT: !38 = !DILocalVariable(arg: 1, scope: !37, type: !20)
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// CHECK:STDOUT: !39 = !DILocation(line: 15, column: 3, scope: !37)
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// CHECK:STDOUT: !40 = !{!38}
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// CHECK:STDOUT: !41 = distinct !DISubprogram(name: "Op", linkageName: "_COp.a9280e8bea6fc5f9:core.Destroy.Core", scope: null, file: !18, line: 15, type: !27, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !44)
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// CHECK:STDOUT: !42 = !DILocalVariable(arg: 1, scope: !41, type: !25)
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// CHECK:STDOUT: !43 = !DILocation(line: 15, column: 3, scope: !41)
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// CHECK:STDOUT: !44 = !{!42}
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// CHECK:STDOUT:
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