mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Ross-Perkinsandjonmeow
9266ced4e3
This is only fixing the decision about *whether* to produce a witness. Implementation of the witness is still a TODO, though where a body is generated, it should also precisely reflect where one _needs_ to be generated. Note the tests: - toolchain/lower/testdata/function/generic/import_core_witness.carbon - toolchain/lower/testdata/function/generic/import_unused_def.carbon These tests can probably be produced _without_ Core.Destroy, but I found the essence of them while trying to build //examples with Core.Destroy and a simpler minimization wasn't striking me. Assisted-by: Google Antigravity with Gemini --------- Co-authored-by: jonmeow <jperkins@google.com>
103 lines
5.3 KiB
Plaintext
103 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/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/class/basic.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/class/basic.carbon
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class C {
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var a: i32;
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var b: C*;
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}
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fn F(c: C) -> C;
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fn Run() {
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var c: C;
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var _: C = F(c);
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}
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// CHECK:STDOUT: ; ModuleID = 'basic.carbon'
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// CHECK:STDOUT: source_filename = "basic.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_CF.Main(ptr sret({ i32, ptr }), ptr)
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @main() #0 !dbg !4 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %c.var = alloca { i32, ptr }, align 8, !dbg !7
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// CHECK:STDOUT: %_.var = alloca { i32, ptr }, align 8, !dbg !8
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c.var), !dbg !7
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !8
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// CHECK:STDOUT: call void @_CF.Main(ptr %_.var, ptr %c.var), !dbg !9
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// CHECK:STDOUT: call void @"_COp.71e25083d63c4d6c:core.Destroy.Core"(ptr %_.var), !dbg !8
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// CHECK:STDOUT: call void @"_COp.71e25083d63c4d6c:core.Destroy.Core"(ptr %c.var), !dbg !7
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// CHECK:STDOUT: ret void, !dbg !10
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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.7e389eab4a7e5487:core.Destroy.Core"(ptr %self) #0 !dbg !11 {
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// CHECK:STDOUT: entry:
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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 weak_odr void @"_COp.e7e7253cfbad8551:core.Destroy.Core"(ptr %self) #0 !dbg !18 {
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// CHECK:STDOUT: entry:
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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: ; Function Attrs: nounwind
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// CHECK:STDOUT: define weak_odr void @"_COp.71e25083d63c4d6c:core.Destroy.Core"(ptr %self) #0 !dbg !25 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !28
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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.71e25083d63c4d6c: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.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: "basic.carbon", directory: "")
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// CHECK:STDOUT: !4 = distinct !DISubprogram(name: "Run", linkageName: "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: 21, column: 3, scope: !4)
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// CHECK:STDOUT: !8 = !DILocation(line: 22, column: 3, scope: !4)
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// CHECK:STDOUT: !9 = !DILocation(line: 22, column: 14, scope: !4)
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// CHECK:STDOUT: !10 = !DILocation(line: 20, column: 1, scope: !4)
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// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "Op", linkageName: "_COp.7e389eab4a7e5487:core.Destroy.Core", scope: null, file: !3, line: 22, type: !12, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !15)
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// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
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// CHECK:STDOUT: !13 = !{null, !14}
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// CHECK:STDOUT: !14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !15 = !{!16}
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// CHECK:STDOUT: !16 = !DILocalVariable(arg: 1, scope: !11, type: !14)
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// CHECK:STDOUT: !17 = !DILocation(line: 22, column: 3, scope: !11)
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// CHECK:STDOUT: !18 = distinct !DISubprogram(name: "Op", linkageName: "_COp.e7e7253cfbad8551:core.Destroy.Core", scope: null, file: !3, line: 22, type: !19, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !22)
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// CHECK:STDOUT: !19 = !DISubroutineType(types: !20)
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// CHECK:STDOUT: !20 = !{null, !21}
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// CHECK:STDOUT: !21 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !22 = !{!23}
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// CHECK:STDOUT: !23 = !DILocalVariable(arg: 1, scope: !18, type: !21)
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// CHECK:STDOUT: !24 = !DILocation(line: 22, column: 3, scope: !18)
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// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "Op", linkageName: "_COp.71e25083d63c4d6c:core.Destroy.Core", scope: null, file: !3, line: 22, type: !19, spFlags: DISPFlagDefinition, unit: !2, retainedNodes: !26)
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// CHECK:STDOUT: !26 = !{!27}
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// CHECK:STDOUT: !27 = !DILocalVariable(arg: 1, scope: !25, type: !21)
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// CHECK:STDOUT: !28 = !DILocation(line: 22, column: 3, scope: !25)
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