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145 lines
7.3 KiB
LLVM
145 lines
7.3 KiB
LLVM
; RUN: llc < %s | FileCheck %s --check-prefix=ASM
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; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s --check-prefix=OBJ
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; C++ source to regenerate:
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; struct Foo {
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; Foo() = default;
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; Foo(Foo &&other) { x = other.x; }
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; int x;
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; };
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; void some_function(int);
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; Foo getFoo() {
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; Foo foo;
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; foo.x = 41;
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; some_function(foo.x);
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; return foo;
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; }
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;
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; int main() {
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; Foo bar = getFoo();
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; return bar.x;
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; }
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; $ clang t.cpp -S -emit-llvm -g -o t.ll
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; ASM-LABEL: .long 241 # Symbol subsection for GetFoo
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; ASM: .short 4414 # Record kind: S_LOCAL
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; ASM-NEXT: .long 4113 # TypeIndex
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; ASM-NEXT: .short 0 # Flags
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; ASM-NEXT: .asciz "foo"
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; ASM-NEXT: .p2align 2
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; ASM-NEXT: .Ltmp
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; ASM: .cv_def_range .Ltmp{{.*}} .Ltmp{{.*}}, frame_ptr_rel, 40
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; OBJ: Subsection [
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; OBJ: SubSectionType: Symbols (0xF1)
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; OBJ: LocalSym {
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; OBJ: Kind: S_LOCAL (0x113E)
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; OBJ: Type: Foo& (0x1011)
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; OBJ: Flags [ (0x0)
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; OBJ: ]
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; OBJ: VarName: foo
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; OBJ: }
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; OBJ: DefRangeFramePointerRelSym {
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; OBJ: Kind: S_DEFRANGE_FRAMEPOINTER_REL (0x1142)
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; OBJ: Offset: 40
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; OBJ: LocalVariableAddrRange {
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; OBJ: OffsetStart: .text+0x1D
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; OBJ: ISectStart: 0x0
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; OBJ: Range: 0x16
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; OBJ: }
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; ModuleID = 't.cpp'
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source_filename = "t.cpp"
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc19.16.27030"
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%struct.Foo = type { i32 }
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local void @"?some_function@@YAXH@Z"(i32) #0 !dbg !8 {
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entry:
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%.addr = alloca i32, align 4
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store i32 %0, i32* %.addr, align 4
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call void @llvm.dbg.declare(metadata i32* %.addr, metadata !12, metadata !DIExpression()), !dbg !13
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ret void, !dbg !13
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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; Function Attrs: noinline nounwind optnone uwtable
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define dso_local void @"?GetFoo@@YA?AUFoo@@XZ"(%struct.Foo* noalias sret(%struct.Foo) %agg.result) #0 !dbg !14 {
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entry:
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%result.ptr = alloca i8*, align 8
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%0 = bitcast %struct.Foo* %agg.result to i8*
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store i8* %0, i8** %result.ptr, align 8
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call void @llvm.dbg.declare(metadata i8** %result.ptr, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !29
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%x = getelementptr inbounds %struct.Foo, %struct.Foo* %agg.result, i32 0, i32 0, !dbg !30
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store i32 41, i32* %x, align 4, !dbg !30
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%x1 = getelementptr inbounds %struct.Foo, %struct.Foo* %agg.result, i32 0, i32 0, !dbg !31
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%1 = load i32, i32* %x1, align 4, !dbg !31
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call void @"?some_function@@YAXH@Z"(i32 %1), !dbg !31
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ret void, !dbg !32
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}
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; Function Attrs: noinline norecurse nounwind optnone uwtable
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define dso_local i32 @main() #2 !dbg !33 {
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entry:
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%retval = alloca i32, align 4
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%bar = alloca %struct.Foo, align 4
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store i32 0, i32* %retval, align 4
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call void @llvm.dbg.declare(metadata %struct.Foo* %bar, metadata !36, metadata !DIExpression()), !dbg !37
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call void @"?GetFoo@@YA?AUFoo@@XZ"(%struct.Foo* sret(%struct.Foo) %bar), !dbg !37
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%x = getelementptr inbounds %struct.Foo, %struct.Foo* %bar, i32 0, i32 0, !dbg !38
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%0 = load i32, i32* %x, align 4, !dbg !38
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ret i32 %0, !dbg !38
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}
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attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone speculatable }
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attributes #2 = { noinline norecurse nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "frame-pointer"="none" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !6}
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!llvm.ident = !{!7}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 9.0.0 (https://github.com/llvm/llvm-project.git c19ebebac4bf853e77a69c74abe9f7fce98c1d17)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, nameTableKind: None)
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!1 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Ctesting\5Cnrvo", checksumkind: CSK_MD5, checksum: "52a5a20c02c102dfd255d5615680a8bd")
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!2 = !{}
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!3 = !{i32 2, !"CodeView", i32 1}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 2}
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!6 = !{i32 7, !"PIC Level", i32 2}
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!7 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git c19ebebac4bf853e77a69c74abe9f7fce98c1d17)"}
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!8 = distinct !DISubprogram(name: "some_function", linkageName: "?some_function@@YAXH@Z", scope: !1, file: !1, line: 13, type: !9, scopeLine: 13, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!9 = !DISubroutineType(types: !10)
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!10 = !{null, !11}
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!11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!12 = !DILocalVariable(arg: 1, scope: !8, file: !1, line: 13, type: !11)
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!13 = !DILocation(line: 13, scope: !8)
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!14 = distinct !DISubprogram(name: "GetFoo", linkageName: "?GetFoo@@YA?AUFoo@@XZ", scope: !1, file: !1, line: 15, type: !15, scopeLine: 15, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!15 = !DISubroutineType(types: !16)
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!16 = !{!17}
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!17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 32, flags: DIFlagTypePassByReference | DIFlagNonTrivial, elements: !18, identifier: ".?AUFoo@@")
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!18 = !{!19, !20, !24}
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!19 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !17, file: !1, line: 4, baseType: !11, size: 32)
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!20 = !DISubprogram(name: "Foo", scope: !17, file: !1, line: 2, type: !21, scopeLine: 2, flags: DIFlagPrototyped, spFlags: 0)
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!21 = !DISubroutineType(types: !22)
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!22 = !{null, !23}
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!23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!24 = !DISubprogram(name: "Foo", scope: !17, file: !1, line: 3, type: !25, scopeLine: 3, flags: DIFlagPrototyped, spFlags: 0)
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!25 = !DISubroutineType(types: !26)
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!26 = !{null, !23, !27}
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!27 = !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: !17, size: 64)
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!28 = !DILocalVariable(name: "foo", scope: !14, file: !1, line: 17, type: !17)
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!29 = !DILocation(line: 17, scope: !14)
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!30 = !DILocation(line: 18, scope: !14)
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!31 = !DILocation(line: 19, scope: !14)
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!32 = !DILocation(line: 21, scope: !14)
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!33 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 23, type: !34, scopeLine: 23, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!34 = !DISubroutineType(types: !35)
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!35 = !{!11}
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!36 = !DILocalVariable(name: "bar", scope: !33, file: !1, line: 24, type: !17)
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!37 = !DILocation(line: 24, scope: !33)
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!38 = !DILocation(line: 25, scope: !33)
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