mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 17:20:11 +01:00
Richard Smith
05cc09daca
Fixes link failures when referencing a symbol involving a fingerprint from a different package. Previously we included the `Namespace`'s `import_id` as part of its fingerprint, which caused local and imported namespaces to get different fingerprints. We now store the `import_id` on the `NameScope` instead of on the `Namespace` inst to avoid this problem. Also, when we reach a package-level `NameScopeId`, consistently fingerprint it as a (package name, library name) pair. Previously the fingerprinting depended on whether it was imported or not, as an imported `NameScopeId` had a parent scope (the current package). We need to include the library name here so that private entities with the same name in different libraries have different fingerprints.
75 lines
3.7 KiB
Plaintext
75 lines
3.7 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/primitives.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/function/generic/local_function.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/function/generic/local_function.carbon
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// Test that calling a local function defined inside a generic function works.
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// This previously crashed due to the local function not having a parent name
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// scope.
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fn F(T:! Core.Copy, y: T) -> T {
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fn G(x: T) -> T { return x; }
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return G(y);
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}
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fn Run() -> i32 {
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return F(i32, 0);
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}
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// CHECK:STDOUT: ; ModuleID = 'local_function.carbon'
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// CHECK:STDOUT: source_filename = "local_function.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 !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %F.call = call i32 @_CF.Main.980bd46fd9fb5b99(i32 0), !dbg !8
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// CHECK:STDOUT: ret i32 %F.call, !dbg !9
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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 linkonce_odr i32 @_CF.Main.980bd46fd9fb5b99(i32 %y) #0 !dbg !10 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %G.call = call i32 @"_CG:enclosed.980bd46fd9fb5b99"(i32 %y), !dbg !15
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// CHECK:STDOUT: ret i32 %G.call, !dbg !16
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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 linkonce_odr i32 @"_CG:enclosed.980bd46fd9fb5b99"(i32 %x) #0 !dbg !17 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret i32 %x, !dbg !20
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.module.flags = !{!0, !1}
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// CHECK:STDOUT: !llvm.dbg.cu = !{!2}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !2 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !3, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !3 = !DIFile(filename: "local_function.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !6 = !{!7}
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// CHECK:STDOUT: !7 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !8 = !DILocation(line: 23, column: 10, scope: !4)
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// CHECK:STDOUT: !9 = !DILocation(line: 23, column: 3, scope: !4)
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// CHECK:STDOUT: !10 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.980bd46fd9fb5b99", scope: null, file: !3, line: 17, type: !11, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !13)
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// CHECK:STDOUT: !11 = !DISubroutineType(types: !12)
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// CHECK:STDOUT: !12 = !{!7, !7}
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// CHECK:STDOUT: !13 = !{!14}
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// CHECK:STDOUT: !14 = !DILocalVariable(arg: 1, scope: !10, type: !7)
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// CHECK:STDOUT: !15 = !DILocation(line: 19, column: 10, scope: !10)
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// CHECK:STDOUT: !16 = !DILocation(line: 19, column: 3, scope: !10)
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// CHECK:STDOUT: !17 = distinct !DISubprogram(name: "G", linkageName: "_CG:enclosed.980bd46fd9fb5b99", scope: null, file: !3, line: 18, type: !11, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !18)
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// CHECK:STDOUT: !18 = !{!19}
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// CHECK:STDOUT: !19 = !DILocalVariable(arg: 1, scope: !17, type: !7)
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// CHECK:STDOUT: !20 = !DILocation(line: 18, column: 21, scope: !17)
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