mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-27 22:02:33 +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.
106 lines
4.8 KiB
Plaintext
106 lines
4.8 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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// This is an integration test for the Core.String in the prelude, so use the
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// real prelude.
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/full.carbon
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// EXTRA-ARGS: --target=x86_64-linux-gnu
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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/primitives/string.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/primitives/string.carbon
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fn F(s: str);
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fn G() {
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F("Hello");
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}
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fn H() {
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// This can reuse the same string literal object.
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let v: str = "Hello";
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F(v);
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}
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fn I() {
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// This can't.
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let v: str = "World";
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F(v);
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}
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fn Copy(s: str) -> str {
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return s;
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}
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// CHECK:STDOUT: ; ModuleID = 'string.carbon'
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// CHECK:STDOUT: source_filename = "string.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: @0 = private unnamed_addr constant [6 x i8] c"Hello\00", align 1
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// CHECK:STDOUT: @1 = private unnamed_addr constant [6 x i8] c"World\00", align 1
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// CHECK:STDOUT: @String.val.397.String.val = internal constant { ptr, i64 } { ptr @0, i64 5 }
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// CHECK:STDOUT: @String.val.6d0.String.val = internal constant { ptr, i64 } { ptr @1, i64 5 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_CF.Main(ptr)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.397.String.val), !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 @_CH.Main() #0 !dbg !9 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.397.String.val), !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 void @_CI.Main() #0 !dbg !12 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main(ptr @String.val.6d0.String.val), !dbg !13
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// CHECK:STDOUT: ret void, !dbg !14
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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 @_CCopy.Main(ptr sret({ ptr, i64 }) %return, ptr %s) #0 !dbg !15 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @"_COp.String.Core:Copy.Core"(ptr %return, ptr %s), !dbg !21
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// CHECK:STDOUT: ret void, !dbg !22
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @"_COp.String.Core:Copy.Core"(ptr sret({ ptr, i64 }), ptr)
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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: "string.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !3, line: 18, 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: 19, column: 3, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 18, column: 1, scope: !4)
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// CHECK:STDOUT: !9 = distinct !DISubprogram(name: "H", linkageName: "_CH.Main", scope: null, file: !3, line: 22, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !10 = !DILocation(line: 25, column: 3, scope: !9)
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// CHECK:STDOUT: !11 = !DILocation(line: 22, column: 1, scope: !9)
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// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "I", linkageName: "_CI.Main", scope: null, file: !3, line: 28, type: !5, spFlags: DISPFlagDefinition, unit: !2)
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// CHECK:STDOUT: !13 = !DILocation(line: 31, column: 3, scope: !12)
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// CHECK:STDOUT: !14 = !DILocation(line: 28, column: 1, scope: !12)
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// CHECK:STDOUT: !15 = distinct !DISubprogram(name: "Copy", linkageName: "_CCopy.Main", scope: null, file: !3, line: 34, type: !16, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !19)
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// CHECK:STDOUT: !16 = !DISubroutineType(types: !17)
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// CHECK:STDOUT: !17 = !{!18, !18}
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// CHECK:STDOUT: !18 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !19 = !{!20}
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// CHECK:STDOUT: !20 = !DILocalVariable(arg: 1, scope: !15, type: !18)
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// CHECK:STDOUT: !21 = !DILocation(line: 35, column: 10, scope: !15)
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// CHECK:STDOUT: !22 = !DILocation(line: 35, column: 3, scope: !15)
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