mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 14:11:04 +01:00
Christopher Di BellaandRichard Smith
4ea5ef45dd
Implementing interface modifiers causes an infinite loop when generating fingerprints because the witness value generates a fingerprint that's dependent on something dependent on the witness value. We've debugged this to the witness table's `elements_id` field. This hack is a workaround for creating a new block type whose value is not codependent with its identity. Co-authored-by: Richard Smith <richard@metafoo.co.uk> Co-authored-by: Richard Smith <richard@metafoo.co.uk>
110 lines
5.1 KiB
Plaintext
110 lines
5.1 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/impl/period_self.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/impl/period_self.carbon
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// --- library_with_period_self_in_impl.carbon
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library "[[@TEST_NAME]]";
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interface J {}
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class A(T: type) {}
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class B {}
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impl forall [T: type] A(T) as J {}
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impl forall [T: type where A(.Self) impls J] A(T) as Core.As(T*) {
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fn Convert(self) -> T* {
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return self as T*;
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}
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}
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fn F[T: type](x: A(T)) {
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x as T*;
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}
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// --- import_period_self_in_impl.carbon
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library "[[@TEST_NAME]]";
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import library "library_with_period_self_in_impl";
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fn G(a: A(B)) {
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F(a);
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}
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'library_with_period_self_in_impl.carbon'
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// CHECK:STDOUT: source_filename = "library_with_period_self_in_impl.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.dbg.cu = !{!0}
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// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !1 = !DIFile(filename: "library_with_period_self_in_impl.carbon", directory: "")
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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:
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'import_period_self_in_impl.carbon'
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// CHECK:STDOUT: source_filename = "import_period_self_in_impl.carbon"
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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(ptr %a) #0 !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_CF.Main.a6a60dfee2d7d273(ptr %a), !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 linkonce_odr void @_CF.Main.a6a60dfee2d7d273(ptr %x) #0 !dbg !12 {
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// CHECK:STDOUT: %1 = call ptr @"_CConvert.A.5d7343568c0b5715.Main:As.00d5ad878904f3d1.Core.06ad18aa23ecf9a8"(ptr %x), !dbg !16
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// CHECK:STDOUT: ret void, !dbg !17
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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 ptr @"_CConvert.A.5d7343568c0b5715.Main:As.00d5ad878904f3d1.Core.06ad18aa23ecf9a8"(ptr %self) #0 !dbg !18 {
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// CHECK:STDOUT: %1 = call ptr @"_CConvert.A.5d7343568c0b5715.Main:As.00d5ad878904f3d1.Core.06ad18aa23ecf9a8"(ptr %self), !dbg !23
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// CHECK:STDOUT: ret ptr %1, !dbg !24
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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.dbg.cu = !{!0}
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// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !1 = !DIFile(filename: "import_period_self_in_impl.carbon", directory: "")
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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: !4 = distinct !DISubprogram(name: "G", linkageName: "_CG.Main", scope: null, file: !1, line: 6, type: !5, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !8)
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// CHECK:STDOUT: !5 = !DISubroutineType(types: !6)
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// CHECK:STDOUT: !6 = !{null, !7}
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// CHECK:STDOUT: !7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !8 = !{!9}
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// CHECK:STDOUT: !9 = !DILocalVariable(arg: 1, scope: !4, type: !7)
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// CHECK:STDOUT: !10 = !DILocation(line: 7, column: 3, scope: !4)
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// CHECK:STDOUT: !11 = !DILocation(line: 6, column: 1, scope: !4)
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// CHECK:STDOUT: !12 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main.a6a60dfee2d7d273", scope: null, file: !13, line: 17, type: !5, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !14)
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// CHECK:STDOUT: !13 = !DIFile(filename: "library_with_period_self_in_impl.carbon", directory: "")
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// CHECK:STDOUT: !14 = !{!15}
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// CHECK:STDOUT: !15 = !DILocalVariable(arg: 1, scope: !12, type: !7)
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// CHECK:STDOUT: !16 = !DILocation(line: 18, column: 3, scope: !12)
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// CHECK:STDOUT: !17 = !DILocation(line: 17, column: 1, scope: !12)
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// CHECK:STDOUT: !18 = distinct !DISubprogram(name: "Convert", linkageName: "_CConvert.A.5d7343568c0b5715.Main:As.00d5ad878904f3d1.Core.06ad18aa23ecf9a8", scope: null, file: !13, line: 12, type: !19, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !21)
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// CHECK:STDOUT: !19 = !DISubroutineType(types: !20)
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// CHECK:STDOUT: !20 = !{!7, !7}
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// CHECK:STDOUT: !21 = !{!22}
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// CHECK:STDOUT: !22 = !DILocalVariable(arg: 1, scope: !18, type: !7)
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// CHECK:STDOUT: !23 = !DILocation(line: 13, column: 12, scope: !18)
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// CHECK:STDOUT: !24 = !DILocation(line: 13, column: 5, scope: !18)
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// CHECK:STDOUT:
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