mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-10-05 19:01:07 +01:00
Christopher Di Bella
6abcfa24b2
Types like constant pointers and `MaybeUnformed(i32)` should have trivial destruction, but were classified as non-trivially destructible.
64 lines
3.3 KiB
Plaintext
64 lines
3.3 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/pointer/address_of_unused.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/pointer/address_of_unused.carbon
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fn F() {
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var n: i32 = 0;
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&n;
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}
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// CHECK:STDOUT: ; ---
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// CHECK:STDOUT: ; ModuleID = 'address_of_unused.carbon'
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// CHECK:STDOUT: source_filename = "address_of_unused.carbon"
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !25 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !26
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %n.var), !dbg !26
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// CHECK:STDOUT: store i32 0, ptr %n.var, align 4, !dbg !26
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// CHECK:STDOUT: call void @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %n.var), !dbg !26
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// CHECK:STDOUT: ret void, !dbg !30
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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 @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !31 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: ret void, !dbg !33
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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: 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.dbg.cu = !{!19}
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// CHECK:STDOUT: !llvm.module.flags = !{!2, !3}
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// CHECK:STDOUT:
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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: !18 = !DIFile(filename: "address_of_unused.carbon", directory: "")
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// CHECK:STDOUT: !19 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !18, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !21 = !{null}
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// CHECK:STDOUT: !22 = !DISubroutineType(types: !21)
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// CHECK:STDOUT: !23 = !{null, !20}
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// CHECK:STDOUT: !24 = !DISubroutineType(types: !23)
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// CHECK:STDOUT: !25 = distinct !DISubprogram(name: "F", linkageName: "_CF.Main", scope: null, file: !18, line: 13, type: !22, spFlags: DISPFlagDefinition, unit: !19)
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// CHECK:STDOUT: !26 = !DILocation(line: 14, column: 3, scope: !25)
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// CHECK:STDOUT: !30 = !DILocation(line: 13, column: 1, scope: !25)
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// CHECK:STDOUT: !31 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.f58524831c37807e:core.Destroy.Core", scope: null, file: !18, line: 14, type: !24, spFlags: DISPFlagDefinition, unit: !19, retainedNodes: !34)
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// CHECK:STDOUT: !32 = !DILocalVariable(arg: 1, scope: !31, type: !20)
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// CHECK:STDOUT: !33 = !DILocation(line: 14, column: 3, scope: !31)
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// CHECK:STDOUT: !34 = !{!32}
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// CHECK:STDOUT:
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