| ; RUN: llc < %s | FileCheck %s --check-prefix=ASM |
| ; RUN: llc < %s -filetype=obj | llvm-readobj - --codeview | FileCheck %s --check-prefix=OBJ |
| |
| ; C++ source to regenerate: |
| ; struct Foo { |
| ; Foo() = default; |
| ; Foo(Foo &&other) { x = other.x; } |
| ; int x; |
| ; }; |
| ; void some_function(int); |
| ; Foo getFoo() { |
| ; Foo foo; |
| ; foo.x = 41; |
| ; some_function(foo.x); |
| ; return foo; |
| ; } |
| ; |
| ; int main() { |
| ; Foo bar = getFoo(); |
| ; return bar.x; |
| ; } |
| ; $ clang t.cpp -S -emit-llvm -g -o t.ll |
| |
| ; ASM-LABEL: .long 241 # Symbol subsection for GetFoo |
| ; ASM: .short 4414 # Record kind: S_LOCAL |
| ; ASM-NEXT: .long 4113 # TypeIndex |
| ; ASM-NEXT: .short 0 # Flags |
| ; ASM-NEXT: .asciz "foo" |
| ; ASM-NEXT: .p2align 2 |
| ; ASM-NEXT: .Ltmp |
| ; ASM: .cv_def_range .Ltmp{{.*}} .Ltmp{{.*}}, frame_ptr_rel, 40 |
| |
| ; OBJ: Subsection [ |
| ; OBJ: SubSectionType: Symbols (0xF1) |
| ; OBJ: LocalSym { |
| ; OBJ: Kind: S_LOCAL (0x113E) |
| ; OBJ: Type: Foo& (0x1011) |
| ; OBJ: Flags [ (0x0) |
| ; OBJ: ] |
| ; OBJ: VarName: foo |
| ; OBJ: } |
| ; OBJ: DefRangeFramePointerRelSym { |
| ; OBJ: Kind: S_DEFRANGE_FRAMEPOINTER_REL (0x1142) |
| ; OBJ: Offset: 40 |
| ; OBJ: LocalVariableAddrRange { |
| ; OBJ: OffsetStart: .text+0x1D |
| ; OBJ: ISectStart: 0x0 |
| ; OBJ: Range: 0x16 |
| ; OBJ: } |
| |
| ; ModuleID = 't.cpp' |
| source_filename = "t.cpp" |
| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc19.16.27030" |
| |
| %struct.Foo = type { i32 } |
| |
| ; Function Attrs: noinline nounwind optnone uwtable |
| define dso_local void @"?some_function@@YAXH@Z"(i32) #0 !dbg !8 { |
| entry: |
| %.addr = alloca i32, align 4 |
| store i32 %0, i32* %.addr, align 4 |
| call void @llvm.dbg.declare(metadata i32* %.addr, metadata !12, metadata !DIExpression()), !dbg !13 |
| ret void, !dbg !13 |
| } |
| |
| ; Function Attrs: nounwind readnone speculatable |
| declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 |
| |
| ; Function Attrs: noinline nounwind optnone uwtable |
| define dso_local void @"?GetFoo@@YA?AUFoo@@XZ"(%struct.Foo* noalias sret(%struct.Foo) %agg.result) #0 !dbg !14 { |
| entry: |
| %result.ptr = alloca i8*, align 8 |
| %0 = bitcast %struct.Foo* %agg.result to i8* |
| store i8* %0, i8** %result.ptr, align 8 |
| call void @llvm.dbg.declare(metadata i8** %result.ptr, metadata !28, metadata !DIExpression(DW_OP_deref)), !dbg !29 |
| %x = getelementptr inbounds %struct.Foo, %struct.Foo* %agg.result, i32 0, i32 0, !dbg !30 |
| store i32 41, i32* %x, align 4, !dbg !30 |
| %x1 = getelementptr inbounds %struct.Foo, %struct.Foo* %agg.result, i32 0, i32 0, !dbg !31 |
| %1 = load i32, i32* %x1, align 4, !dbg !31 |
| call void @"?some_function@@YAXH@Z"(i32 %1), !dbg !31 |
| ret void, !dbg !32 |
| } |
| |
| ; Function Attrs: noinline norecurse nounwind optnone uwtable |
| define dso_local i32 @main() #2 !dbg !33 { |
| entry: |
| %retval = alloca i32, align 4 |
| %bar = alloca %struct.Foo, align 4 |
| store i32 0, i32* %retval, align 4 |
| call void @llvm.dbg.declare(metadata %struct.Foo* %bar, metadata !36, metadata !DIExpression()), !dbg !37 |
| call void @"?GetFoo@@YA?AUFoo@@XZ"(%struct.Foo* sret(%struct.Foo) %bar), !dbg !37 |
| %x = getelementptr inbounds %struct.Foo, %struct.Foo* %bar, i32 0, i32 0, !dbg !38 |
| %0 = load i32, i32* %x, align 4, !dbg !38 |
| ret i32 %0, !dbg !38 |
| } |
| |
| 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" } |
| attributes #1 = { nounwind readnone speculatable } |
| 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" } |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4, !5, !6} |
| !llvm.ident = !{!7} |
| |
| !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) |
| !1 = !DIFile(filename: "t.cpp", directory: "C:\5Csrc\5Ctesting\5Cnrvo", checksumkind: CSK_MD5, checksum: "52a5a20c02c102dfd255d5615680a8bd") |
| !2 = !{} |
| !3 = !{i32 2, !"CodeView", i32 1} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !5 = !{i32 1, !"wchar_size", i32 2} |
| !6 = !{i32 7, !"PIC Level", i32 2} |
| !7 = !{!"clang version 9.0.0 (https://github.com/llvm/llvm-project.git c19ebebac4bf853e77a69c74abe9f7fce98c1d17)"} |
| !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) |
| !9 = !DISubroutineType(types: !10) |
| !10 = !{null, !11} |
| !11 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !12 = !DILocalVariable(arg: 1, scope: !8, file: !1, line: 13, type: !11) |
| !13 = !DILocation(line: 13, scope: !8) |
| !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) |
| !15 = !DISubroutineType(types: !16) |
| !16 = !{!17} |
| !17 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "Foo", file: !1, line: 1, size: 32, flags: DIFlagTypePassByReference | DIFlagNonTrivial, elements: !18, identifier: ".?AUFoo@@") |
| !18 = !{!19, !20, !24} |
| !19 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !17, file: !1, line: 4, baseType: !11, size: 32) |
| !20 = !DISubprogram(name: "Foo", scope: !17, file: !1, line: 2, type: !21, scopeLine: 2, flags: DIFlagPrototyped, spFlags: 0) |
| !21 = !DISubroutineType(types: !22) |
| !22 = !{null, !23} |
| !23 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !17, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer) |
| !24 = !DISubprogram(name: "Foo", scope: !17, file: !1, line: 3, type: !25, scopeLine: 3, flags: DIFlagPrototyped, spFlags: 0) |
| !25 = !DISubroutineType(types: !26) |
| !26 = !{null, !23, !27} |
| !27 = !DIDerivedType(tag: DW_TAG_rvalue_reference_type, baseType: !17, size: 64) |
| !28 = !DILocalVariable(name: "foo", scope: !14, file: !1, line: 17, type: !17) |
| !29 = !DILocation(line: 17, scope: !14) |
| !30 = !DILocation(line: 18, scope: !14) |
| !31 = !DILocation(line: 19, scope: !14) |
| !32 = !DILocation(line: 21, scope: !14) |
| !33 = distinct !DISubprogram(name: "main", scope: !1, file: !1, line: 23, type: !34, scopeLine: 23, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) |
| !34 = !DISubroutineType(types: !35) |
| !35 = !{!11} |
| !36 = !DILocalVariable(name: "bar", scope: !33, file: !1, line: 24, type: !17) |
| !37 = !DILocation(line: 24, scope: !33) |
| !38 = !DILocation(line: 25, scope: !33) |