Index: cfe/trunk/lib/CodeGen/CGDebugInfo.h =================================================================== --- cfe/trunk/lib/CodeGen/CGDebugInfo.h +++ cfe/trunk/lib/CodeGen/CGDebugInfo.h @@ -422,9 +422,10 @@ /// declaration. /// Returns a pointer to the DILocalVariable associated with the /// llvm.dbg.declare, or nullptr otherwise. - llvm::DILocalVariable *EmitDeclareOfAutoVariable(const VarDecl *Decl, - llvm::Value *AI, - CGBuilderTy &Builder); + llvm::DILocalVariable * + EmitDeclareOfAutoVariable(const VarDecl *Decl, llvm::Value *AI, + CGBuilderTy &Builder, + const bool UsePointerValue = false); /// Emit call to \c llvm.dbg.label for an label. void EmitLabel(const LabelDecl *D, CGBuilderTy &Builder); @@ -507,7 +508,8 @@ /// llvm.dbg.declare, or nullptr otherwise. llvm::DILocalVariable *EmitDeclare(const VarDecl *decl, llvm::Value *AI, llvm::Optional ArgNo, - CGBuilderTy &Builder); + CGBuilderTy &Builder, + const bool UsePointerValue = false); struct BlockByRefType { /// The wrapper struct used inside the __block_literal struct. Index: cfe/trunk/lib/CodeGen/CGDebugInfo.cpp =================================================================== --- cfe/trunk/lib/CodeGen/CGDebugInfo.cpp +++ cfe/trunk/lib/CodeGen/CGDebugInfo.cpp @@ -3835,7 +3835,8 @@ llvm::DILocalVariable *CGDebugInfo::EmitDeclare(const VarDecl *VD, llvm::Value *Storage, llvm::Optional ArgNo, - CGBuilderTy &Builder) { + CGBuilderTy &Builder, + const bool UsePointerValue) { assert(DebugKind >= codegenoptions::LimitedDebugInfo); assert(!LexicalBlockStack.empty() && "Region stack mismatch, stack empty!"); if (VD->hasAttr()) @@ -3940,6 +3941,16 @@ } } + // Clang stores the sret pointer provided by the caller in a static alloca. + // Use DW_OP_deref to tell the debugger to load the pointer and treat it as + // the address of the variable. + if (UsePointerValue) { + assert(std::find(Expr.begin(), Expr.end(), llvm::dwarf::DW_OP_deref) == + Expr.end() && + "Debug info already contains DW_OP_deref."); + Expr.push_back(llvm::dwarf::DW_OP_deref); + } + // Create the descriptor for the variable. auto *D = ArgNo ? DBuilder.createParameterVariable( Scope, Name, *ArgNo, Unit, Line, Ty, @@ -3958,9 +3969,10 @@ llvm::DILocalVariable * CGDebugInfo::EmitDeclareOfAutoVariable(const VarDecl *VD, llvm::Value *Storage, - CGBuilderTy &Builder) { + CGBuilderTy &Builder, + const bool UsePointerValue) { assert(DebugKind >= codegenoptions::LimitedDebugInfo); - return EmitDeclare(VD, Storage, llvm::None, Builder); + return EmitDeclare(VD, Storage, llvm::None, Builder, UsePointerValue); } void CGDebugInfo::EmitLabel(const LabelDecl *D, CGBuilderTy &Builder) { Index: cfe/trunk/lib/CodeGen/CGDecl.cpp =================================================================== --- cfe/trunk/lib/CodeGen/CGDecl.cpp +++ cfe/trunk/lib/CodeGen/CGDecl.cpp @@ -1403,12 +1403,11 @@ getLangOpts().OpenMP ? CGM.getOpenMPRuntime().getAddressOfLocalVariable(*this, &D) : Address::invalid(); + bool NRVO = getLangOpts().ElideConstructors && D.isNRVOVariable(); + if (getLangOpts().OpenMP && OpenMPLocalAddr.isValid()) { address = OpenMPLocalAddr; } else if (Ty->isConstantSizeType()) { - bool NRVO = getLangOpts().ElideConstructors && - D.isNRVOVariable(); - // If this value is an array or struct with a statically determinable // constant initializer, there are optimizations we can do. // @@ -1561,8 +1560,16 @@ // Emit debug info for local var declaration. if (EmitDebugInfo && HaveInsertPoint()) { + Address DebugAddr = address; + bool UsePointerValue = NRVO && ReturnValuePointer.isValid(); DI->setLocation(D.getLocation()); - (void)DI->EmitDeclareOfAutoVariable(&D, address.getPointer(), Builder); + + // If NRVO, use a pointer to the return address. + if (UsePointerValue) + DebugAddr = ReturnValuePointer; + + (void)DI->EmitDeclareOfAutoVariable(&D, DebugAddr.getPointer(), Builder, + UsePointerValue); } if (D.hasAttr() && HaveInsertPoint()) Index: cfe/trunk/lib/CodeGen/CodeGenFunction.h =================================================================== --- cfe/trunk/lib/CodeGen/CodeGenFunction.h +++ cfe/trunk/lib/CodeGen/CodeGenFunction.h @@ -327,6 +327,10 @@ /// value. This is invalid iff the function has no return value. Address ReturnValue = Address::invalid(); + /// ReturnValuePointer - The temporary alloca to hold a pointer to sret. + /// This is invalid if sret is not in use. + Address ReturnValuePointer = Address::invalid(); + /// Return true if a label was seen in the current scope. bool hasLabelBeenSeenInCurrentScope() const { if (CurLexicalScope) Index: cfe/trunk/lib/CodeGen/CodeGenFunction.cpp =================================================================== --- cfe/trunk/lib/CodeGen/CodeGenFunction.cpp +++ cfe/trunk/lib/CodeGen/CodeGenFunction.cpp @@ -895,6 +895,13 @@ if (CurFnInfo->getReturnInfo().isSRetAfterThis()) ++AI; ReturnValue = Address(&*AI, CurFnInfo->getReturnInfo().getIndirectAlign()); + if (!CurFnInfo->getReturnInfo().getIndirectByVal()) { + ReturnValuePointer = + CreateDefaultAlignTempAlloca(Int8PtrTy, "result.ptr"); + Builder.CreateStore(Builder.CreatePointerBitCastOrAddrSpaceCast( + ReturnValue.getPointer(), Int8PtrTy), + ReturnValuePointer); + } } else if (CurFnInfo->getReturnInfo().getKind() == ABIArgInfo::InAlloca && !hasScalarEvaluationKind(CurFnInfo->getReturnType())) { // Load the sret pointer from the argument struct and return into that. @@ -902,6 +909,7 @@ llvm::Function::arg_iterator EI = CurFn->arg_end(); --EI; llvm::Value *Addr = Builder.CreateStructGEP(nullptr, &*EI, Idx); + ReturnValuePointer = Address(Addr, getPointerAlign()); Addr = Builder.CreateAlignedLoad(Addr, getPointerAlign(), "agg.result"); ReturnValue = Address(Addr, getNaturalTypeAlignment(RetTy)); } else { Index: cfe/trunk/test/CodeGen/arm64-microsoft-arguments.cpp =================================================================== --- cfe/trunk/test/CodeGen/arm64-microsoft-arguments.cpp +++ cfe/trunk/test/CodeGen/arm64-microsoft-arguments.cpp @@ -43,7 +43,7 @@ // Pass and return aggregate (of size < 16 bytes) with non-trivial destructor. // Passed directly but returned indirectly. // CHECK: define {{.*}} void {{.*}}f4{{.*}}(%struct.S4* inreg noalias sret %agg.result) -// CHECK: call void {{.*}}func4{{.*}}(%struct.S4* inreg sret %agg.result, [2 x i64] %4) +// CHECK: call void {{.*}}func4{{.*}}(%struct.S4* inreg sret %agg.result, [2 x i64] %5) struct S4 { int a[3]; ~S4(); @@ -57,7 +57,7 @@ // Pass and return from instance method called from instance method. // CHECK: define {{.*}} void @{{.*}}bar@Q1{{.*}}(%class.Q1* %this, %class.P1* inreg noalias sret %agg.result) -// CHECK: call void {{.*}}foo@P1{{.*}}(%class.P1* %ref.tmp, %class.P1* inreg sret %agg.result, i8 %0) +// CHECK: call void {{.*}}foo@P1{{.*}}(%class.P1* %ref.tmp, %class.P1* inreg sret %agg.result, i8 %1) class P1 { public: Index: cfe/trunk/test/CodeGenCXX/conditional-gnu-ext.cpp =================================================================== --- cfe/trunk/test/CodeGenCXX/conditional-gnu-ext.cpp +++ cfe/trunk/test/CodeGenCXX/conditional-gnu-ext.cpp @@ -79,7 +79,7 @@ B test0(B &x) { // CHECK-LABEL: define void @_ZN5test35test0ERNS_1BE( // CHECK: [[X:%.*]] = alloca [[B:%.*]]*, - // CHECK-NEXT: store [[B]]* {{%.*}}, [[B]]** [[X]] + // CHECK: store [[B]]* {{%.*}}, [[B]]** [[X]] // CHECK-NEXT: [[T0:%.*]] = load [[B]]*, [[B]]** [[X]] // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[T0]]) // CHECK-NEXT: br i1 [[BOOL]] @@ -94,7 +94,7 @@ B test1() { // CHECK-LABEL: define void @_ZN5test35test1Ev( // CHECK: [[TEMP:%.*]] = alloca [[B]], - // CHECK-NEXT: call void @_ZN5test312test1_helperEv([[B]]* sret [[TEMP]]) + // CHECK: call void @_ZN5test312test1_helperEv([[B]]* sret [[TEMP]]) // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[TEMP]]) // CHECK-NEXT: br i1 [[BOOL]] // CHECK: call void @_ZN5test31BC1ERKS0_([[B]]* [[RESULT:%.*]], [[B]]* dereferenceable({{[0-9]+}}) [[TEMP]]) @@ -111,7 +111,7 @@ A test2(B &x) { // CHECK-LABEL: define void @_ZN5test35test2ERNS_1BE( // CHECK: [[X:%.*]] = alloca [[B]]*, - // CHECK-NEXT: store [[B]]* {{%.*}}, [[B]]** [[X]] + // CHECK: store [[B]]* {{%.*}}, [[B]]** [[X]] // CHECK-NEXT: [[T0:%.*]] = load [[B]]*, [[B]]** [[X]] // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[T0]]) // CHECK-NEXT: br i1 [[BOOL]] @@ -126,7 +126,7 @@ A test3() { // CHECK-LABEL: define void @_ZN5test35test3Ev( // CHECK: [[TEMP:%.*]] = alloca [[B]], - // CHECK-NEXT: call void @_ZN5test312test3_helperEv([[B]]* sret [[TEMP]]) + // CHECK: call void @_ZN5test312test3_helperEv([[B]]* sret [[TEMP]]) // CHECK-NEXT: [[BOOL:%.*]] = call zeroext i1 @_ZN5test31BcvbEv([[B]]* [[TEMP]]) // CHECK-NEXT: br i1 [[BOOL]] // CHECK: call void @_ZN5test31BcvNS_1AEEv([[A]]* sret [[RESULT:%.*]], [[B]]* [[TEMP]]) Index: cfe/trunk/test/CodeGenCXX/debug-info-nrvo.cpp =================================================================== --- cfe/trunk/test/CodeGenCXX/debug-info-nrvo.cpp +++ cfe/trunk/test/CodeGenCXX/debug-info-nrvo.cpp @@ -0,0 +1,28 @@ +// RUN: %clangxx -target x86_64-unknown-unknown -g %s -emit-llvm -S -o - | FileCheck %s +// RUN: %clangxx -target x86_64-unknown-unknown -g -fno-elide-constructors %s -emit-llvm -S -o - | FileCheck %s -check-prefix=NOELIDE +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; +} + +// Check that NRVO variables are stored as a pointer with deref if they are +// stored in the return register. + +// CHECK: %result.ptr = alloca i8*, align 8 +// CHECK: call void @llvm.dbg.declare(metadata i8** %result.ptr, +// CHECK-SAME: metadata !DIExpression(DW_OP_deref) +// NOELIDE: call void @llvm.dbg.declare(metadata %struct.Foo* %foo, +// NOELIDE-SAME: metadata !DIExpression() Index: cfe/trunk/test/CodeGenCXX/lambda-expressions.cpp =================================================================== --- cfe/trunk/test/CodeGenCXX/lambda-expressions.cpp +++ cfe/trunk/test/CodeGenCXX/lambda-expressions.cpp @@ -195,7 +195,6 @@ // CHECK-NEXT: ret i32 // CHECK-LABEL: define internal void @"_ZZ1hvEN4$_118__invokeEv"(%struct.A* noalias sret %agg.result) {{.*}} { -// CHECK-NOT: = // CHECK: call void @"_ZZ1hvENK4$_11clEv"(%struct.A* sret %agg.result, // CHECK-NEXT: ret void struct A { ~A(); }; Index: cfe/trunk/test/CodeGenObjC/objc-non-trivial-struct-nrvo.m =================================================================== --- cfe/trunk/test/CodeGenObjC/objc-non-trivial-struct-nrvo.m +++ cfe/trunk/test/CodeGenObjC/objc-non-trivial-struct-nrvo.m @@ -38,7 +38,6 @@ void func1(TrivialBig *); // CHECK: define void @testTrivialBig(%[[STRUCT_TRIVIALBIG]]* noalias sret %[[AGG_RESULT:.*]]) -// CHECK-NOT: alloca // CHECK: call void @func1(%[[STRUCT_TRIVIALBIG]]* %[[AGG_RESULT]]) // CHECK-NEXT: ret void Index: debuginfo-tests/trunk/nrvo-string.cpp =================================================================== --- debuginfo-tests/trunk/nrvo-string.cpp +++ debuginfo-tests/trunk/nrvo-string.cpp @@ -17,11 +17,32 @@ string get_string() { string unused; string result = 3; -// DEBUGGER: break 21 + // DEBUGGER: break 21 return result; } -int main() { get_string(); } +void some_function(int) {} +struct string2 { + string2() = default; + string2(string2 &&other) { i = other.i; } + int i; +}; +string2 get_string2() { + string2 result; + result.i = 5; + some_function(result.i); + // Test that the debugger can get the value of result after another + // function is called. + // DEBUGGER: break 35 + return result; +} +int main() { + get_string(); + get_string2(); +} // DEBUGGER: r // DEBUGGER: print result.i // CHECK: = 3 +// DEBUGGER: c +// DEBUGGER: print result.i +// CHECK: = 5 Index: debuginfo-tests/trunk/win_cdb/nrvo.cpp =================================================================== --- debuginfo-tests/trunk/win_cdb/nrvo.cpp +++ debuginfo-tests/trunk/win_cdb/nrvo.cpp @@ -0,0 +1,49 @@ +// This ensures that DW_OP_deref is inserted when necessary, such as when NRVO +// of a string object occurs in C++. +// +// RUN: %clang_cl %s -o %t.exe -fuse-ld=lld -Z7 +// RUN: grep DE[B]UGGER: %s | sed -e 's/.*DE[B]UGGER: //' > %t.script +// RUN: %cdb -cf %t.script %t.exe | FileCheck %s --check-prefixes=DEBUGGER,CHECK +// + +struct string { + string() {} + string(int i) : i(i) {} + ~string() {} + int i = 0; +}; +string get_string() { + string unused; + string result = 3; + __debugbreak(); + return result; +} +void some_function(int) {} +struct string2 { + string2() = default; + string2(string2 &&other) { i = other.i; } + int i; +}; +string2 get_string2() { + string2 result; + result.i = 5; + some_function(result.i); + // Test that the debugger can get the value of result after another + // function is called. + __debugbreak(); + return result; +} +int main() { + get_string(); + get_string2(); +} + +// DEBUGGER: g +// DEBUGGER: ?? result +// CHECK: struct string * +// CHECK: +0x000 i : 0n3 +// DEBUGGER: g +// DEBUGGER: ?? result +// CHECK: struct string2 * +// CHECK: +0x000 i : 0n5 +// DEBUGGER: q Index: llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp =================================================================== --- llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp +++ llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp @@ -1142,9 +1142,15 @@ // If the variable has an attached offset expression, extract it. // FIXME: Try to handle DW_OP_deref as well. int64_t ExprOffset = 0; - if (VI.Expr) - if (!VI.Expr->extractIfOffset(ExprOffset)) + bool Deref = false; + if (VI.Expr) { + // If there is one DW_OP_deref element, use offset of 0 and keep going. + if (VI.Expr->getNumElements() == 1 && + VI.Expr->getElement(0) == llvm::dwarf::DW_OP_deref) + Deref = true; + else if (!VI.Expr->extractIfOffset(ExprOffset)) continue; + } // Get the frame register used and the offset. unsigned FrameReg = 0; @@ -1154,6 +1160,7 @@ // Calculate the label ranges. LocalVarDefRange DefRange = createDefRangeMem(CVReg, FrameOffset + ExprOffset); + for (const InsnRange &Range : Scope->getRanges()) { const MCSymbol *Begin = getLabelBeforeInsn(Range.first); const MCSymbol *End = getLabelAfterInsn(Range.second); @@ -1164,6 +1171,9 @@ LocalVariable Var; Var.DIVar = VI.Var; Var.DefRanges.emplace_back(std::move(DefRange)); + if (Deref) + Var.UseReferenceType = true; + recordLocalVariable(std::move(Var), Scope); } } Index: llvm/trunk/test/DebugInfo/COFF/nrvo.ll =================================================================== --- llvm/trunk/test/DebugInfo/COFF/nrvo.ll +++ llvm/trunk/test/DebugInfo/COFF/nrvo.ll @@ -0,0 +1,144 @@ +; 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{{.*}}, "B\021(\000\000\000" + +; 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 %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 %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" "no-frame-pointer-elim"="false" "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" "no-frame-pointer-elim"="false" "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)