mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 18:30:11 +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.
112 lines
5.3 KiB
Plaintext
112 lines
5.3 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/full.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/call_different_impls.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/call_different_impls.carbon
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import Core library "io";
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interface I {
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fn F();
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}
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class X {}
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impl X as I {
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fn F() { Core.Print(1); }
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}
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class Y {}
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impl Y as I {
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fn F() { Core.Print(2); }
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}
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// Cannot coalesce the lowering for G specifics, as they call different functions.
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// Check different functions are still emitted when trying to deduplicate emitted definitons.
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fn G(T:! I) { T.F(); }
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fn Run() {
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G(X);
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G(Y);
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}
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// CHECK:STDOUT: ; ModuleID = 'call_different_impls.carbon'
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// CHECK:STDOUT: source_filename = "call_different_impls.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: @printf.int.format = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @"_CF.X.Main:I.Main"() #0 !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %Print.call = call i32 (ptr, ...) @printf(ptr @printf.int.format, i32 1), !dbg !7
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// CHECK:STDOUT: ret void, !dbg !8
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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 void @"_CF.Y.Main:I.Main"() #0 !dbg !9 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %Print.call = call i32 (ptr, ...) @printf(ptr @printf.int.format, i32 2), !dbg !10
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// CHECK:STDOUT: ret void, !dbg !11
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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 i32 @main() #0 !dbg !12 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CG.Main.3e475381c3e5acc5(), !dbg !16
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// CHECK:STDOUT: call void @_CG.Main.c00b4ba37166674e(), !dbg !17
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// CHECK:STDOUT: ret i32 0, !dbg !18
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare i32 @printf(ptr, ...)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define linkonce_odr void @_CG.Main.3e475381c3e5acc5() #0 !dbg !19 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @"_CF.X.Main:I.Main"(), !dbg !20
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// CHECK:STDOUT: ret void, !dbg !21
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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 void @_CG.Main.c00b4ba37166674e() #0 !dbg !22 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @"_CF.Y.Main:I.Main"(), !dbg !23
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// CHECK:STDOUT: ret void, !dbg !24
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder ptr @printf, { 1, 0 }
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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: "call_different_impls.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "F", linkageName: "_CF.X.Main:I.Main", scope: null, file: !3, line: 20, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !6 = !{null}
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// CHECK:STDOUT: !7 = !DILocation(line: 20, column: 12, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 20, column: 3, scope: !4)
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// CHECK:STDOUT: !9 = distinct !DISubprogram(name: "F", linkageName: "_CF.Y.Main:I.Main", scope: null, file: !3, line: 24, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !10 = !DILocation(line: 24, column: 12, scope: !9)
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// CHECK:STDOUT: !11 = !DILocation(line: 24, column: 3, scope: !9)
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// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "Run", linkageName: "main", scope: null, file: !3, line: 31, type: !13, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !13 = !DISubroutineType(types: !14)
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// CHECK:STDOUT: !14 = !{!15}
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// CHECK:STDOUT: !15 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !16 = !DILocation(line: 32, column: 3, scope: !12)
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// CHECK:STDOUT: !17 = !DILocation(line: 33, column: 3, scope: !12)
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// CHECK:STDOUT: !18 = !DILocation(line: 31, column: 1, scope: !12)
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// CHECK:STDOUT: !19 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.3e475381c3e5acc5", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !20 = !DILocation(line: 29, column: 15, scope: !19)
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// CHECK:STDOUT: !21 = !DILocation(line: 29, column: 1, scope: !19)
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// CHECK:STDOUT: !22 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main.c00b4ba37166674e", scope: null, file: !3, line: 29, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !23 = !DILocation(line: 29, column: 15, scope: !22)
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// CHECK:STDOUT: !24 = !DILocation(line: 29, column: 1, scope: !22)
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