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Classify classes with no struct fields as trivially destructible (#7846)

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This commit is contained in:
Christopher Di Bella
2026-09-28 22:39:03 +00:00
committed by GitHub
parent e530421ba1
commit b227419d8d
227 changed files with 9144 additions and 12453 deletions
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toolchain/lower/testdata/interop/cpp/class/import/conversion.carbon
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+14 -25
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@@ -345,8 +345,8 @@ fn ConvertToValue(b: Cpp.IntB) {
// CHECK:STDOUT: define internal noundef i32 @_ZNK4IntBcviEv.carbon_thunk._(ptr noundef nonnull align 1 dereferenceable(1) %this) #1 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %this.addr = alloca ptr, align 8
// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !140
// CHECK:STDOUT: %0 = load ptr, ptr %this.addr, align 8, !tbaa !140, !nonnull !54
// CHECK:STDOUT: store ptr %this, ptr %this.addr, align 8, !tbaa !136
// CHECK:STDOUT: %0 = load ptr, ptr %this.addr, align 8, !tbaa !136, !nonnull !54
// CHECK:STDOUT: %call = call noundef i32 @_ZNK4IntBcviEv(ptr noundef nonnull align 1 dereferenceable(1) %0)
// CHECK:STDOUT: ret i32 %call
// CHECK:STDOUT: }
@@ -358,23 +358,16 @@ fn ConvertToValue(b: Cpp.IntB) {
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_CSubobjectDestroy.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !123 {
// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !123 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: ret void, !dbg !125
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define weak_odr void @"_CSelfDestruct.f58524831c37807e:core.Destroy.Core"(ptr %self) #0 !dbg !127 {
// CHECK:STDOUT: define void @_CConvertToValue.Main(ptr %b) #0 !dbg !127 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: call void @"_CSubobjectDestroy.f58524831c37807e:core.Destroy.Core"(ptr %self), !dbg !129
// CHECK:STDOUT: ret void, !dbg !129
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nounwind
// CHECK:STDOUT: define void @_CConvertToValue.Main(ptr %b) #0 !dbg !131 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %__carbon_thunk.call = call i32 @_ZNK4IntBcviEv.carbon_thunk._(ptr %b), !dbg !134
// CHECK:STDOUT: ret void, !dbg !137
// CHECK:STDOUT: %__carbon_thunk.call = call i32 @_ZNK4IntBcviEv.carbon_thunk._(ptr %b), !dbg !130
// CHECK:STDOUT: ret void, !dbg !133
// CHECK:STDOUT: }
// CHECK:STDOUT:
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
@@ -420,19 +413,15 @@ fn ConvertToValue(b: Cpp.IntB) {
// CHECK:STDOUT: !120 = !DILocalVariable(arg: 1, scope: !119, type: !20)
// CHECK:STDOUT: !121 = !DILocation(line: 12, column: 3, scope: !119)
// CHECK:STDOUT: !122 = !{!120}
// CHECK:STDOUT: !123 = distinct !DISubprogram(name: "SubobjectDestroy", linkageName: "_CSubobjectDestroy.f58524831c37807e:core.Destroy.Core", scope: null, file: !105, line: 12, type: !110, spFlags: DISPFlagDefinition, unit: !106, retainedNodes: !126)
// CHECK:STDOUT: !123 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.f58524831c37807e:core.Destroy.Core", scope: null, file: !105, line: 12, type: !110, spFlags: DISPFlagDefinition, unit: !106, retainedNodes: !126)
// CHECK:STDOUT: !124 = !DILocalVariable(arg: 1, scope: !123, type: !20)
// CHECK:STDOUT: !125 = !DILocation(line: 12, column: 3, scope: !123)
// CHECK:STDOUT: !126 = !{!124}
// CHECK:STDOUT: !127 = distinct !DISubprogram(name: "SelfDestruct", linkageName: "_CSelfDestruct.f58524831c37807e:core.Destroy.Core", scope: null, file: !105, line: 12, type: !110, spFlags: DISPFlagDefinition, unit: !106, retainedNodes: !130)
// CHECK:STDOUT: !128 = !DILocalVariable(arg: 1, scope: !127, type: !20)
// CHECK:STDOUT: !129 = !DILocation(line: 12, column: 3, scope: !127)
// CHECK:STDOUT: !130 = !{!128}
// CHECK:STDOUT: !131 = distinct !DISubprogram(name: "ConvertToValue", linkageName: "_CConvertToValue.Main", scope: null, file: !105, line: 15, type: !23, spFlags: DISPFlagDefinition, unit: !106, retainedNodes: !138)
// CHECK:STDOUT: !132 = !DILocalVariable(arg: 1, scope: !131, type: !21)
// CHECK:STDOUT: !134 = !DILocation(line: 16, column: 27, scope: !131)
// CHECK:STDOUT: !137 = !DILocation(line: 15, column: 1, scope: !131)
// CHECK:STDOUT: !138 = !{!132}
// CHECK:STDOUT: !139 = !{!"p1 _ZTS4IntB", !48, i64 0}
// CHECK:STDOUT: !140 = !{!139, !139, i64 0}
// CHECK:STDOUT: !127 = distinct !DISubprogram(name: "ConvertToValue", linkageName: "_CConvertToValue.Main", scope: null, file: !105, line: 15, type: !23, spFlags: DISPFlagDefinition, unit: !106, retainedNodes: !134)
// CHECK:STDOUT: !128 = !DILocalVariable(arg: 1, scope: !127, type: !21)
// CHECK:STDOUT: !130 = !DILocation(line: 16, column: 27, scope: !127)
// CHECK:STDOUT: !133 = !DILocation(line: 15, column: 1, scope: !127)
// CHECK:STDOUT: !134 = !{!128}
// CHECK:STDOUT: !135 = !{!"p1 _ZTS4IntB", !48, i64 0}
// CHECK:STDOUT: !136 = !{!135, !135, i64 0}
// CHECK:STDOUT: