[llvm] r271408 - [codeview] Translate basic DITypes to CV type records
David Blaikie via llvm-commits
llvm-commits at lists.llvm.org
Fri Jun 3 08:35:13 PDT 2016
Ping
On Wed, Jun 1, 2016 at 10:22 AM, David Blaikie <dblaikie at gmail.com> wrote:
>
>
> On Wed, Jun 1, 2016 at 10:05 AM, Reid Kleckner via llvm-commits <
> llvm-commits at lists.llvm.org> wrote:
>
>> Author: rnk
>> Date: Wed Jun 1 12:05:51 2016
>> New Revision: 271408
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=271408&view=rev
>> Log:
>> [codeview] Translate basic DITypes to CV type records
>>
>> Summary:
>> This is meant to be the tiniest step towards DIType to CV type index
>> translation that I could come up with. Whenever translation fails, we use
>> type
>> index zero, which is the unknown type.
>>
>> Reviewers: aaboud, zturner
>>
>> Subscribers: llvm-commits, amccarth
>>
>> Differential Revision: http://reviews.llvm.org/D20840
>>
>> Added:
>> llvm/trunk/test/DebugInfo/COFF/types-basic.ll
>> Modified:
>> llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
>> llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.h
>> llvm/trunk/test/DebugInfo/COFF/inlining.ll
>>
>> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp?rev=271408&r1=271407&r2=271408&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp Wed Jun 1
>> 12:05:51 2016
>> @@ -230,8 +230,6 @@ void CodeViewDebug::endModule() {
>> if (FnDebugInfo.empty())
>> return;
>>
>> - emitTypeInformation();
>> -
>> assert(Asm != nullptr);
>>
>> // The COFF .debug$S section consists of several subsections, each
>> starting
>> @@ -258,6 +256,10 @@ void CodeViewDebug::endModule() {
>> OS.AddComment("String table");
>> OS.EmitCVStringTableDirective();
>>
>> + // Emit type information last, so that any types we translate while
>> emitting
>> + // function info are included.
>> + emitTypeInformation();
>> +
>> clear();
>> }
>>
>> @@ -726,6 +728,214 @@ void CodeViewDebug::beginFunction(const
>> }
>> }
>>
>> +TypeIndex CodeViewDebug::lowerType(const DIType *Ty) {
>> + // Generic dispatch for lowering an unknown type.
>> + switch (Ty->getTag()) {
>> + case dwarf::DW_TAG_base_type:
>> + return lowerTypeBasic(cast<DIBasicType>(Ty));
>> + case dwarf::DW_TAG_pointer_type:
>> + case dwarf::DW_TAG_reference_type:
>> + case dwarf::DW_TAG_rvalue_reference_type:
>> + return lowerTypePointer(cast<DIDerivedType>(Ty));
>> + case dwarf::DW_TAG_ptr_to_member_type:
>> + return lowerTypeMemberPointer(cast<DIDerivedType>(Ty));
>> + case dwarf::DW_TAG_const_type:
>> + case dwarf::DW_TAG_volatile_type:
>> + return lowerTypeModifier(cast<DIDerivedType>(Ty));
>> + default:
>> + // Use the null type index.
>> + return TypeIndex();
>> + }
>> +}
>> +
>> +TypeIndex CodeViewDebug::lowerTypeBasic(const DIBasicType *Ty) {
>> + TypeIndex Index;
>> + dwarf::TypeKind Kind;
>> + uint32_t ByteSize;
>> +
>> + Kind = static_cast<dwarf::TypeKind>(Ty->getEncoding());
>> + ByteSize = Ty->getSizeInBits() >> 3;
>> +
>> + SimpleTypeKind STK = SimpleTypeKind::None;
>> + switch (Kind) {
>> + case dwarf::DW_ATE_address:
>> + // FIXME: Translate
>> + break;
>> + case dwarf::DW_ATE_boolean:
>> + switch (ByteSize) {
>> + case 1: STK = SimpleTypeKind::Boolean8; break;
>> + case 2: STK = SimpleTypeKind::Boolean16; break;
>> + case 4: STK = SimpleTypeKind::Boolean32; break;
>> + case 8: STK = SimpleTypeKind::Boolean64; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_complex_float:
>> + switch (ByteSize) {
>> + case 4: STK = SimpleTypeKind::Complex32; break;
>> + case 8: STK = SimpleTypeKind::Complex64; break;
>> + case 10: STK = SimpleTypeKind::Complex80; break;
>> + case 16: STK = SimpleTypeKind::Complex128; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_float:
>> + switch (ByteSize) {
>> + case 4: STK = SimpleTypeKind::Float32; break;
>> + case 6: STK = SimpleTypeKind::Float48; break;
>> + case 8: STK = SimpleTypeKind::Float64; break;
>> + case 10: STK = SimpleTypeKind::Float80; break;
>> + case 16: STK = SimpleTypeKind::Float128; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_signed:
>> + switch (ByteSize) {
>> + case 1: STK = SimpleTypeKind::SByte; break;
>> + case 2: STK = SimpleTypeKind::Int16Short; break;
>> + case 4: STK = SimpleTypeKind::Int32; break;
>> + case 8: STK = SimpleTypeKind::Int64; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_unsigned:
>> + switch (ByteSize) {
>> + case 1: STK = SimpleTypeKind::Byte; break;
>> + case 2: STK = SimpleTypeKind::UInt16Short; break;
>> + case 4: STK = SimpleTypeKind::UInt32; break;
>> + case 8: STK = SimpleTypeKind::UInt64; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_UTF:
>> + switch (ByteSize) {
>> + case 2: STK = SimpleTypeKind::Character16; break;
>> + case 4: STK = SimpleTypeKind::Character32; break;
>> + }
>> + break;
>> + case dwarf::DW_ATE_signed_char:
>> + if (ByteSize == 1)
>> + STK = SimpleTypeKind::SignedCharacter;
>> + break;
>> + case dwarf::DW_ATE_unsigned_char:
>> + if (ByteSize == 1)
>> + STK = SimpleTypeKind::UnsignedCharacter;
>> + break;
>> + default:
>> + break;
>> + }
>> +
>> + // Apply some fixups based on the source-level type name.
>> + if (STK == SimpleTypeKind::Int32 && Ty->getName() == "long int")
>> + STK = SimpleTypeKind::Int32Long;
>> + if (STK == SimpleTypeKind::UInt32 && Ty->getName() == "long unsigned
>> int")
>> + STK = SimpleTypeKind::UInt32Long;
>> + if ((STK == SimpleTypeKind::Int16Short ||
>> + STK == SimpleTypeKind::UInt16Short) &&
>> + Ty->getName() == "wchar_t")
>> + STK = SimpleTypeKind::WideCharacter;
>> + if ((STK == SimpleTypeKind::SignedCharacter ||
>> + STK == SimpleTypeKind::UnsignedCharacter) &&
>> + Ty->getName() == "char")
>> + STK = SimpleTypeKind::NarrowCharacter;
>> +
>> + return TypeIndex(STK);
>> +}
>> +
>> +TypeIndex CodeViewDebug::lowerTypePointer(const DIDerivedType *Ty) {
>> + TypeIndex PointeeTI = getTypeIndex(Ty->getBaseType());
>> +
>> + // Pointers to simple types can use SimpleTypeMode, rather than having
>> a
>> + // dedicated pointer type record.
>> + if (PointeeTI.isSimple() &&
>> + PointeeTI.getSimpleMode() == SimpleTypeMode::Direct &&
>> + Ty->getTag() == dwarf::DW_TAG_pointer_type) {
>> + SimpleTypeMode Mode = Ty->getSizeInBits() == 64
>> + ? SimpleTypeMode::NearPointer64
>> + : SimpleTypeMode::NearPointer32;
>> + return TypeIndex(PointeeTI.getSimpleKind(), Mode);
>> + }
>> +
>> + PointerKind PK =
>> + Ty->getSizeInBits() == 64 ? PointerKind::Near64 :
>> PointerKind::Near32;
>> + PointerMode PM = PointerMode::Pointer;
>> + switch (Ty->getTag()) {
>> + default: llvm_unreachable("not a pointer tag type");
>> + case dwarf::DW_TAG_pointer_type:
>> + PM = PointerMode::Pointer;
>> + break;
>> + case dwarf::DW_TAG_reference_type:
>> + PM = PointerMode::LValueReference;
>> + break;
>> + case dwarf::DW_TAG_rvalue_reference_type:
>> + PM = PointerMode::RValueReference;
>> + break;
>> + }
>> + // FIXME: MSVC folds qualifiers into PointerOptions in the context of
>> a method
>> + // 'this' pointer, but not normal contexts. Figure out what we're
>> supposed to
>> + // do.
>> + PointerOptions PO = PointerOptions::None;
>> + PointerRecord PR(PointeeTI, PK, PM, PO, Ty->getSizeInBits() / 8);
>> + return TypeTable.writePointer(PR);
>> +}
>> +
>> +TypeIndex CodeViewDebug::lowerTypeMemberPointer(const DIDerivedType *Ty)
>> {
>> + assert(Ty->getTag() == dwarf::DW_TAG_ptr_to_member_type);
>> + TypeIndex ClassTI = getTypeIndex(Ty->getClassType());
>> + TypeIndex PointeeTI = getTypeIndex(Ty->getBaseType());
>> + PointerKind PK = Asm->MAI->getPointerSize() == 8 ? PointerKind::Near64
>> + : PointerKind::Near32;
>> + PointerMode PM = isa<DISubroutineType>(Ty->getBaseType())
>> + ? PointerMode::PointerToMemberFunction
>> + : PointerMode::PointerToDataMember;
>> + PointerOptions PO = PointerOptions::None; // FIXME
>> + // FIXME: Thread this ABI info through metadata.
>> + PointerToMemberRepresentation PMR =
>> PointerToMemberRepresentation::Unknown;
>> + MemberPointerInfo MPI(ClassTI, PMR);
>> + PointerRecord PR(PointeeTI, PK, PM, PO, Ty->getSizeInBits() / 8, MPI);
>> + return TypeTable.writePointer(PR);
>> +}
>> +
>> +TypeIndex CodeViewDebug::lowerTypeModifier(const DIDerivedType *Ty) {
>> + ModifierOptions Mods = ModifierOptions::None;
>> + bool IsModifier = true;
>> + const DIType *BaseTy = Ty;
>> + while (IsModifier) {
>> + assert(BaseTy);
>> + // FIXME: Need to add DWARF tag for __unaligned.
>> + switch (BaseTy->getTag()) {
>> + case dwarf::DW_TAG_const_type:
>> + Mods |= ModifierOptions::Const;
>> + break;
>> + case dwarf::DW_TAG_volatile_type:
>> + Mods |= ModifierOptions::Volatile;
>> + break;
>> + default:
>> + IsModifier = false;
>> + break;
>> + }
>> + if (IsModifier)
>> + BaseTy = cast<DIDerivedType>(BaseTy)->getBaseType().resolve();
>> + }
>> + TypeIndex ModifiedTI = getTypeIndex(BaseTy);
>> + ModifierRecord MR(ModifiedTI, Mods);
>> + return TypeTable.writeModifier(MR);
>> +}
>> +
>> +TypeIndex CodeViewDebug::getTypeIndex(DITypeRef TypeRef) {
>> + const DIType *Ty = TypeRef.resolve();
>> +
>> + // The null DIType is the void type. Don't try to hash it.
>> + if (!Ty)
>> + return TypeIndex::Void();
>> +
>> + // Check if we've already translated this type.
>> + auto I = TypeIndices.find(Ty);
>> + if (I != TypeIndices.end())
>> + return I->second;
>> +
>>
>
> Might be worth adding a comment somewhere here to mention that lowerType
> might add new TypeIndices and thus you can't avoid the double lookup (find
> and then unhinted insert) here. Pretty obvious I guess, but seems nice to
> have.
>
>
>> + TypeIndex TI = lowerType(Ty);
>> +
>> + auto InsertResult = TypeIndices.insert({Ty, TI});
>> + assert(InsertResult.second && "DIType lowered twice");
>> + return TI;
>> +}
>> +
>> void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) {
>> // LocalSym record, see SymbolRecord.h for more info.
>> MCSymbol *LocalBegin = MMI->getContext().createTempSymbol(),
>> @@ -744,7 +954,8 @@ void CodeViewDebug::emitLocalVariable(co
>> Flags |= LocalSymFlags::IsOptimizedOut;
>>
>> OS.AddComment("TypeIndex");
>> - OS.EmitIntValue(TypeIndex::Int32().getIndex(), 4);
>> + TypeIndex TI = getTypeIndex(Var.DIVar->getType());
>> + OS.EmitIntValue(TI.getIndex(), 4);
>> OS.AddComment("Flags");
>> OS.EmitIntValue(static_cast<uint16_t>(Flags), 2);
>> // Truncate the name so we won't overflow the record length field.
>>
>> Modified: llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.h
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.h?rev=271408&r1=271407&r2=271408&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.h (original)
>> +++ llvm/trunk/lib/CodeGen/AsmPrinter/CodeViewDebug.h Wed Jun 1 12:05:51
>> 2016
>> @@ -185,6 +185,16 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDe
>>
>> void emitLocalVariable(const LocalVariable &Var);
>>
>> + /// Translates the DIType to codeview if necessary and returns a type
>> index
>> + /// for it.
>> + codeview::TypeIndex getTypeIndex(DITypeRef Ty);
>> +
>> + codeview::TypeIndex lowerType(const DIType *Ty);
>> + codeview::TypeIndex lowerTypeBasic(const DIBasicType *Ty);
>> + codeview::TypeIndex lowerTypePointer(const DIDerivedType *Ty);
>> + codeview::TypeIndex lowerTypeMemberPointer(const DIDerivedType *Ty);
>> + codeview::TypeIndex lowerTypeModifier(const DIDerivedType *Ty);
>> +
>> public:
>> CodeViewDebug(AsmPrinter *Asm);
>>
>>
>> Modified: llvm/trunk/test/DebugInfo/COFF/inlining.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/COFF/inlining.ll?rev=271408&r1=271407&r2=271408&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/test/DebugInfo/COFF/inlining.ll (original)
>> +++ llvm/trunk/test/DebugInfo/COFF/inlining.ll Wed Jun 1 12:05:51 2016
>>
>
> At least for the DWARF tests we dwarfdump the output of LLVM and check
> against the pretty printed dump output. Is there a reason we need/prefer to
> test the asm directly here?
>
>
>> @@ -39,6 +39,36 @@
>> ; ASM: addl $7, "?x@@3HC"
>> ; ASM: .cv_loc 0 1 17 1 # t.cpp:17:1
>>
>> +; ASM: .section .debug$S,"dr"
>> +; ASM: .long 246 # Inlinee lines subsection
>> +; ASM: .long [[inline_end:.*]]-[[inline_beg:.*]] #
>> +; ASM: [[inline_beg]]:
>> +; ASM: .long 0
>> +; ASM: # Inlined function bar starts at t.cpp:8
>> +; ASM: .long 4098 # Type index of inlined function
>> +; ASM: .long 0 # Offset into filechecksum table
>> +; ASM: .long 8 # Starting line number
>> +; ASM: # Inlined function foo starts at t.cpp:2
>> +; ASM: .long 4099
>> +; ASM: .long 0
>> +; ASM: .long 2
>> +; ASM: [[inline_end]]:
>> +
>> +; ASM: .long 241 # Symbol subsection for baz
>> +; ASM: .long {{.*}} # Subsection size
>> +; ASM: .short 4429
>> +; ASM: .long
>> +; ASM: .long
>> +; ASM: .long
>> +; ASM: .cv_inline_linetable 1 1 8 Lfunc_begin0 Lfunc_end0 contains 2
>> +; ASM: .short 4429
>> +; ASM: .long
>> +; ASM: .long
>> +; ASM: .long
>> +; ASM: .cv_inline_linetable 2 1 2 Lfunc_begin0 Lfunc_end0
>> +; ASM: .short 4430
>> +; ASM: .short 4430
>> +
>> ; ASM: .section .debug$T,"dr"
>> ; ASM: .long 4 # Debug section magic
>> ; ASM: # ArgList (0x1000) {
>> @@ -83,39 +113,9 @@
>> ; ASM: .byte 0x01, 0x10, 0x00, 0x00
>> ; ASM: .byte 0x66, 0x6f, 0x6f, 0x00
>>
>> -; ASM: .section .debug$S,"dr"
>> -; ASM: .long 246 # Inlinee lines subsection
>> -; ASM: .long [[inline_end:.*]]-[[inline_beg:.*]] #
>> -; ASM: [[inline_beg]]:
>> -; ASM: .long 0
>> -; ASM: # Inlined function bar starts at t.cpp:8
>> -; ASM: .long 4098 # Type index of inlined function
>> -; ASM: .long 0 # Offset into filechecksum table
>> -; ASM: .long 8 # Starting line number
>> -; ASM: # Inlined function foo starts at t.cpp:2
>> -; ASM: .long 4099
>> -; ASM: .long 0
>> -; ASM: .long 2
>> -; ASM: [[inline_end]]:
>> -
>> -; ASM: .long 241 # Symbol subsection for baz
>> -; ASM: .long {{.*}} # Subsection size
>> -; ASM: .short 4429
>> -; ASM: .long
>> -; ASM: .long
>> -; ASM: .long
>> -; ASM: .cv_inline_linetable 1 1 8 Lfunc_begin0 Lfunc_end0 contains 2
>> -; ASM: .short 4429
>> -; ASM: .long
>> -; ASM: .long
>> -; ASM: .long
>> -; ASM: .cv_inline_linetable 2 1 2 Lfunc_begin0 Lfunc_end0
>> -; ASM: .short 4430
>> -; ASM: .short 4430
>> -
>> ; We should only the LF_FUNC_ID records that we needed to reference.
>> ; OBJ: CodeViewTypes [
>> -; OBJ: Section: .debug$T (4)
>> +; OBJ: Section: .debug$T
>> ; OBJ: ArgList (0x1000) {
>> ; OBJ: TypeLeafKind: LF_ARGLIST (0x1201)
>> ; OBJ: NumArgs: 0
>>
>> Added: llvm/trunk/test/DebugInfo/COFF/types-basic.ll
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/COFF/types-basic.ll?rev=271408&view=auto
>>
>> ==============================================================================
>> --- llvm/trunk/test/DebugInfo/COFF/types-basic.ll (added)
>> +++ llvm/trunk/test/DebugInfo/COFF/types-basic.ll Wed Jun 1 12:05:51 2016
>> @@ -0,0 +1,400 @@
>> +; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
>> +
>> +; C++ source to regenerate:
>> +; $ cat t.cpp
>> +; struct A {
>> +; int a;
>> +; void f();
>> +; };
>> +; void usevars(int, ...);
>> +; void f(float p1, double p2, long long p3) {
>> +; int v1 = p3;
>> +; int *v2 = &v1;
>> +; const int *v21 = &v1;
>> +; void *v3 = &v1;
>> +; int A::*v4 = &A::a;
>> +; void (A::*v5)() = &A::f;
>> +; long l1 = 0;
>> +; long int l2 = 0;
>> +; unsigned long l3 = 0;
>> +; unsigned long int l4 = 0;
>> +; usevars(v1, v2, v3, l1, l2, l3, l4);
>> +; }
>> +; void CharTypes() {
>> +; signed wchar_t w;
>> +; unsigned short us;
>> +; char c;
>> +; unsigned char uc;
>> +; signed char sc;
>> +; char16_t c16;
>> +; char32_t c32;
>> +; }
>> +; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll
>> +
>> +; CHECK: CodeViewTypes [
>> +; CHECK: Modifier (0x1000) {
>> +; CHECK: TypeLeafKind: LF_MODIFIER (0x1001)
>> +; CHECK: ModifiedType: int (0x74)
>> +; CHECK: Modifiers [ (0x1)
>> +; CHECK: Const (0x1)
>> +; CHECK: ]
>> +; CHECK: }
>> +; CHECK: Pointer (0x1001) {
>> +; CHECK: TypeLeafKind: LF_POINTER (0x1002)
>> +; CHECK: PointeeType: const int (0x1000)
>> +; CHECK: PointerAttributes: 0x1000C
>> +; CHECK: PtrType: Near64 (0xC)
>> +; CHECK: PtrMode: Pointer (0x0)
>> +; CHECK: IsFlat: 0
>> +; CHECK: IsConst: 0
>> +; CHECK: IsVolatile: 0
>> +; CHECK: IsUnaligned: 0
>> +; CHECK: }
>> +; CHECK: Pointer (0x1002) {
>> +; CHECK: TypeLeafKind: LF_POINTER (0x1002)
>> +; CHECK: PointeeType: int (0x74)
>> +; CHECK: PointerAttributes: 0x804C
>> +; CHECK: PtrType: Near64 (0xC)
>> +; CHECK: PtrMode: PointerToDataMember (0x2)
>> +; CHECK: IsFlat: 0
>> +; CHECK: IsConst: 0
>> +; CHECK: IsVolatile: 0
>> +; CHECK: IsUnaligned: 0
>> +; CHECK: ClassType: 0x0
>> +; CHECK: Representation: Unknown (0x0)
>> +; CHECK: }
>> +; CHECK: Pointer (0x1003) {
>> +; CHECK: TypeLeafKind: LF_POINTER (0x1002)
>> +; CHECK: PointeeType: 0x0
>> +; CHECK: PointerAttributes: 0x1006C
>> +; CHECK: PtrType: Near64 (0xC)
>> +; CHECK: PtrMode: PointerToMemberFunction (0x3)
>> +; CHECK: IsFlat: 0
>> +; CHECK: IsConst: 0
>> +; CHECK: IsVolatile: 0
>> +; CHECK: IsUnaligned: 0
>> +; CHECK: ClassType: 0x0
>> +; CHECK: Representation: Unknown (0x0)
>> +; CHECK: }
>> +; CHECK: ]
>> +; CHECK: CodeViewDebugInfo [
>> +; CHECK: Subsection [
>> +; CHECK: SubSectionType: Symbols (0xF1)
>> +; CHECK: ProcStart {
>> +; CHECK: DbgStart: 0x0
>> +; CHECK: DbgEnd: 0x0
>> +; CHECK: FunctionType: 0x0
>> +; CHECK: CodeOffset: ?f@@YAXMN_J at Z+0x0
>> +; CHECK: Segment: 0x0
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: DisplayName: f
>> +; CHECK: LinkageName: ?f@@YAXMN_J at Z
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: __int64 (0x76)
>> +; CHECK: Flags [ (0x1)
>> +; CHECK: IsParameter (0x1)
>> +; CHECK: ]
>> +; CHECK: VarName: p3
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: double (0x41)
>> +; CHECK: Flags [ (0x1)
>> +; CHECK: IsParameter (0x1)
>> +; CHECK: ]
>> +; CHECK: VarName: p2
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: float (0x40)
>> +; CHECK: Flags [ (0x1)
>> +; CHECK: IsParameter (0x1)
>> +; CHECK: ]
>> +; CHECK: VarName: p1
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: int (0x74)
>> +; CHECK: VarName: v1
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: int* (0x674)
>> +; CHECK: VarName: v2
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: const int* (0x1001)
>> +; CHECK: VarName: v21
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: void* (0x603)
>> +; CHECK: VarName: v3
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: int <no type>::* (0x1002)
>> +; CHECK: VarName: v4
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: <no type> <no type>::* (0x1003)
>> +; CHECK: VarName: v5
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: long (0x12)
>> +; CHECK: VarName: l1
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: long (0x12)
>> +; CHECK: VarName: l2
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: unsigned long (0x22)
>> +; CHECK: VarName: l3
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: unsigned long (0x22)
>> +; CHECK: VarName: l4
>> +; CHECK: }
>> +; CHECK: ProcEnd {
>> +; CHECK: }
>> +; CHECK: ]
>> +; CHECK: Subsection [
>> +; CHECK: ProcStart {
>> +; CHECK: DisplayName: CharTypes
>> +; CHECK: LinkageName: ?CharTypes@@YAXXZ
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: wchar_t (0x71)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: w
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: unsigned short (0x21)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: us
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: char (0x70)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: c
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: unsigned char (0x20)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: uc
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: signed char (0x10)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: sc
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: char16_t (0x7A)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: c16
>> +; CHECK: }
>> +; CHECK: Local {
>> +; CHECK: Type: char32_t (0x7B)
>> +; CHECK: Flags [ (0x0)
>> +; CHECK: ]
>> +; CHECK: VarName: c32
>> +; CHECK: }
>> +; CHECK: ProcEnd {
>> +; CHECK: }
>> +; CHECK: ]
>> +; CHECK: ]
>> +
>> +; 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-msvc19.0.23918"
>> +
>> +%struct.A = type { i32 }
>> +
>> +; Function Attrs: uwtable
>> +define void @"\01?f@@YAXMN_J at Z"(float %p1, double %p2, i64 %p3) #0 !dbg
>> !7 {
>> +entry:
>> + %p3.addr = alloca i64, align 8
>> + %p2.addr = alloca double, align 8
>> + %p1.addr = alloca float, align 4
>> + %v1 = alloca i32, align 4
>> + %v2 = alloca i32*, align 8
>> + %v21 = alloca i32*, align 8
>> + %v3 = alloca i8*, align 8
>> + %v4 = alloca i32, align 8
>> + %v5 = alloca i8*, align 8
>> + %l1 = alloca i32, align 4
>> + %l2 = alloca i32, align 4
>> + %l3 = alloca i32, align 4
>> + %l4 = alloca i32, align 4
>> + store i64 %p3, i64* %p3.addr, align 8
>> + call void @llvm.dbg.declare(metadata i64* %p3.addr, metadata !13,
>> metadata !14), !dbg !15
>> + store double %p2, double* %p2.addr, align 8
>> + call void @llvm.dbg.declare(metadata double* %p2.addr, metadata !16,
>> metadata !14), !dbg !17
>> + store float %p1, float* %p1.addr, align 4
>> + call void @llvm.dbg.declare(metadata float* %p1.addr, metadata !18,
>> metadata !14), !dbg !19
>> + call void @llvm.dbg.declare(metadata i32* %v1, metadata !20, metadata
>> !14), !dbg !22
>> + %0 = load i64, i64* %p3.addr, align 8, !dbg !23
>> + %conv = trunc i64 %0 to i32, !dbg !23
>> + store i32 %conv, i32* %v1, align 4, !dbg !22
>> + call void @llvm.dbg.declare(metadata i32** %v2, metadata !24, metadata
>> !14), !dbg !26
>> + store i32* %v1, i32** %v2, align 8, !dbg !26
>> + call void @llvm.dbg.declare(metadata i32** %v21, metadata !27,
>> metadata !14), !dbg !30
>> + store i32* %v1, i32** %v21, align 8, !dbg !30
>> + call void @llvm.dbg.declare(metadata i8** %v3, metadata !31, metadata
>> !14), !dbg !33
>> + %1 = bitcast i32* %v1 to i8*, !dbg !34
>> + store i8* %1, i8** %v3, align 8, !dbg !33
>> + call void @llvm.dbg.declare(metadata i32* %v4, metadata !35, metadata
>> !14), !dbg !44
>> + store i32 0, i32* %v4, align 8, !dbg !44
>> + call void @llvm.dbg.declare(metadata i8** %v5, metadata !45, metadata
>> !14), !dbg !47
>> + store i8* bitcast (void (%struct.A*)* @"\01?f at A@@QEAAXXZ" to i8*),
>> i8** %v5, align 8, !dbg !47
>> + call void @llvm.dbg.declare(metadata i32* %l1, metadata !48, metadata
>> !14), !dbg !50
>> + store i32 0, i32* %l1, align 4, !dbg !50
>> + call void @llvm.dbg.declare(metadata i32* %l2, metadata !51, metadata
>> !14), !dbg !52
>> + store i32 0, i32* %l2, align 4, !dbg !52
>> + call void @llvm.dbg.declare(metadata i32* %l3, metadata !53, metadata
>> !14), !dbg !55
>> + store i32 0, i32* %l3, align 4, !dbg !55
>> + call void @llvm.dbg.declare(metadata i32* %l4, metadata !56, metadata
>> !14), !dbg !57
>> + store i32 0, i32* %l4, align 4, !dbg !57
>> + %2 = load i32, i32* %l4, align 4, !dbg !58
>> + %3 = load i32, i32* %l3, align 4, !dbg !59
>> + %4 = load i32, i32* %l2, align 4, !dbg !60
>> + %5 = load i32, i32* %l1, align 4, !dbg !61
>> + %6 = load i8*, i8** %v3, align 8, !dbg !62
>> + %7 = load i32*, i32** %v2, align 8, !dbg !63
>> + %8 = load i32, i32* %v1, align 4, !dbg !64
>> + call void (i32, ...) @"\01?usevars@@YAXHZZ"(i32 %8, i32* %7, i8* %6,
>> i32 %5, i32 %4, i32 %3, i32 %2), !dbg !65
>> + ret void, !dbg !66
>> +}
>> +
>> +; Function Attrs: nounwind readnone
>> +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
>> +
>> +declare void @"\01?f at A@@QEAAXXZ"(%struct.A*) #2
>> +
>> +declare void @"\01?usevars@@YAXHZZ"(i32, ...) #2
>> +
>> +; Function Attrs: nounwind uwtable
>> +define void @"\01?CharTypes@@YAXXZ"() #3 !dbg !67 {
>> +entry:
>> + %w = alloca i16, align 2
>> + %us = alloca i16, align 2
>> + %c = alloca i8, align 1
>> + %uc = alloca i8, align 1
>> + %sc = alloca i8, align 1
>> + %c16 = alloca i16, align 2
>> + %c32 = alloca i32, align 4
>> + call void @llvm.dbg.declare(metadata i16* %w, metadata !70, metadata
>> !14), !dbg !72
>> + call void @llvm.dbg.declare(metadata i16* %us, metadata !73, metadata
>> !14), !dbg !75
>> + call void @llvm.dbg.declare(metadata i8* %c, metadata !76, metadata
>> !14), !dbg !78
>> + call void @llvm.dbg.declare(metadata i8* %uc, metadata !79, metadata
>> !14), !dbg !81
>> + call void @llvm.dbg.declare(metadata i8* %sc, metadata !82, metadata
>> !14), !dbg !84
>> + call void @llvm.dbg.declare(metadata i16* %c16, metadata !85, metadata
>> !14), !dbg !87
>> + call void @llvm.dbg.declare(metadata i32* %c32, metadata !88, metadata
>> !14), !dbg !90
>> + ret void, !dbg !91
>> +}
>> +
>> +attributes #0 = { uwtable "disable-tail-calls"="false"
>> "less-precise-fpmad"="false" "no-frame-pointer-elim"="false"
>> "no-infs-fp-math"="false" "no-jump-tables"="false"
>> "no-nans-fp-math"="false" "stack-protector-buffer-size"="8"
>> "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87"
>> "unsafe-fp-math"="false" "use-soft-float"="false" }
>> +attributes #1 = { nounwind readnone }
>> +attributes #2 = { "disable-tail-calls"="false"
>> "less-precise-fpmad"="false" "no-frame-pointer-elim"="false"
>> "no-infs-fp-math"="false" "no-nans-fp-math"="false"
>> "stack-protector-buffer-size"="8" "target-cpu"="x86-64"
>> "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false"
>> "use-soft-float"="false" }
>> +attributes #3 = { nounwind uwtable "disable-tail-calls"="false"
>> "less-precise-fpmad"="false" "no-frame-pointer-elim"="false"
>> "no-infs-fp-math"="false" "no-jump-tables"="false"
>> "no-nans-fp-math"="false" "stack-protector-buffer-size"="8"
>> "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87"
>> "unsafe-fp-math"="false" "use-soft-float"="false" }
>> +
>> +!llvm.dbg.cu = !{!0}
>> +!llvm.module.flags = !{!3, !4, !5}
>> +!llvm.ident = !{!6}
>> +
>> +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1,
>> producer: "clang version 3.9.0 (trunk 271336) (llvm/trunk 271339)",
>> isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
>> +!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
>> +!2 = !{}
>> +!3 = !{i32 2, !"CodeView", i32 1}
>> +!4 = !{i32 2, !"Debug Info Version", i32 3}
>> +!5 = !{i32 1, !"PIC Level", i32 2}
>> +!6 = !{!"clang version 3.9.0 (trunk 271336) (llvm/trunk 271339)"}
>> +!7 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YAXMN_J at Z",
>> scope: !1, file: !1, line: 6, type: !8, isLocal: false, isDefinition: true,
>> scopeLine: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0,
>> variables: !2)
>> +!8 = !DISubroutineType(types: !9)
>> +!9 = !{null, !10, !11, !12}
>> +!10 = !DIBasicType(name: "float", size: 32, align: 32, encoding:
>> DW_ATE_float)
>> +!11 = !DIBasicType(name: "double", size: 64, align: 64, encoding:
>> DW_ATE_float)
>> +!12 = !DIBasicType(name: "long long int", size: 64, align: 64, encoding:
>> DW_ATE_signed)
>> +!13 = !DILocalVariable(name: "p3", arg: 3, scope: !7, file: !1, line: 6,
>> type: !12)
>> +!14 = !DIExpression()
>> +!15 = !DILocation(line: 6, column: 39, scope: !7)
>> +!16 = !DILocalVariable(name: "p2", arg: 2, scope: !7, file: !1, line: 6,
>> type: !11)
>> +!17 = !DILocation(line: 6, column: 25, scope: !7)
>> +!18 = !DILocalVariable(name: "p1", arg: 1, scope: !7, file: !1, line: 6,
>> type: !10)
>> +!19 = !DILocation(line: 6, column: 14, scope: !7)
>> +!20 = !DILocalVariable(name: "v1", scope: !7, file: !1, line: 7, type:
>> !21)
>> +!21 = !DIBasicType(name: "int", size: 32, align: 32, encoding:
>> DW_ATE_signed)
>> +!22 = !DILocation(line: 7, column: 7, scope: !7)
>> +!23 = !DILocation(line: 7, column: 12, scope: !7)
>> +!24 = !DILocalVariable(name: "v2", scope: !7, file: !1, line: 8, type:
>> !25)
>> +!25 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64,
>> align: 64)
>> +!26 = !DILocation(line: 8, column: 8, scope: !7)
>> +!27 = !DILocalVariable(name: "v21", scope: !7, file: !1, line: 9, type:
>> !28)
>> +!28 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !29, size: 64,
>> align: 64)
>> +!29 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !21)
>> +!30 = !DILocation(line: 9, column: 14, scope: !7)
>> +!31 = !DILocalVariable(name: "v3", scope: !7, file: !1, line: 10, type:
>> !32)
>> +!32 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64,
>> align: 64)
>> +!33 = !DILocation(line: 10, column: 9, scope: !7)
>> +!34 = !DILocation(line: 10, column: 14, scope: !7)
>> +!35 = !DILocalVariable(name: "v4", scope: !7, file: !1, line: 11, type:
>> !36)
>> +!36 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !21,
>> size: 32, extraData: !37)
>> +!37 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "A",
>> file: !1, line: 1, size: 32, align: 32, elements: !38)
>> +!38 = !{!39, !40}
>> +!39 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !37, file:
>> !1, line: 2, baseType: !21, size: 32, align: 32)
>> +!40 = !DISubprogram(name: "A::f", linkageName: "\01?f at A@@QEAAXXZ",
>> scope: !37, file: !1, line: 3, type: !41, isLocal: false, isDefinition:
>> false, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: false)
>> +!41 = !DISubroutineType(types: !42)
>> +!42 = !{null, !43}
>> +!43 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !37, size: 64,
>> align: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
>> +!44 = !DILocation(line: 11, column: 11, scope: !7)
>> +!45 = !DILocalVariable(name: "v5", scope: !7, file: !1, line: 12, type:
>> !46)
>> +!46 = !DIDerivedType(tag: DW_TAG_ptr_to_member_type, baseType: !41,
>> size: 64, extraData: !37)
>> +!47 = !DILocation(line: 12, column: 13, scope: !7)
>> +!48 = !DILocalVariable(name: "l1", scope: !7, file: !1, line: 13, type:
>> !49)
>> +!49 = !DIBasicType(name: "long int", size: 32, align: 32, encoding:
>> DW_ATE_signed)
>> +!50 = !DILocation(line: 13, column: 8, scope: !7)
>> +!51 = !DILocalVariable(name: "l2", scope: !7, file: !1, line: 14, type:
>> !49)
>> +!52 = !DILocation(line: 14, column: 12, scope: !7)
>> +!53 = !DILocalVariable(name: "l3", scope: !7, file: !1, line: 15, type:
>> !54)
>> +!54 = !DIBasicType(name: "long unsigned int", size: 32, align: 32,
>> encoding: DW_ATE_unsigned)
>> +!55 = !DILocation(line: 15, column: 17, scope: !7)
>> +!56 = !DILocalVariable(name: "l4", scope: !7, file: !1, line: 16, type:
>> !54)
>> +!57 = !DILocation(line: 16, column: 21, scope: !7)
>> +!58 = !DILocation(line: 17, column: 35, scope: !7)
>> +!59 = !DILocation(line: 17, column: 31, scope: !7)
>> +!60 = !DILocation(line: 17, column: 27, scope: !7)
>> +!61 = !DILocation(line: 17, column: 23, scope: !7)
>> +!62 = !DILocation(line: 17, column: 19, scope: !7)
>> +!63 = !DILocation(line: 17, column: 15, scope: !7)
>> +!64 = !DILocation(line: 17, column: 11, scope: !7)
>> +!65 = !DILocation(line: 17, column: 3, scope: !7)
>> +!66 = !DILocation(line: 18, column: 1, scope: !7)
>> +!67 = distinct !DISubprogram(name: "CharTypes", linkageName:
>> "\01?CharTypes@@YAXXZ", scope: !1, file: !1, line: 19, type: !68,
>> isLocal: false, isDefinition: true, scopeLine: 19, flags: DIFlagPrototyped,
>> isOptimized: false, unit: !0, variables: !2)
>> +!68 = !DISubroutineType(types: !69)
>> +!69 = !{null}
>> +!70 = !DILocalVariable(name: "w", scope: !67, file: !1, line: 20, type:
>> !71)
>> +!71 = !DIBasicType(name: "wchar_t", size: 16, align: 16, encoding:
>> DW_ATE_unsigned)
>> +!72 = !DILocation(line: 20, column: 18, scope: !67)
>> +!73 = !DILocalVariable(name: "us", scope: !67, file: !1, line: 21, type:
>> !74)
>> +!74 = !DIBasicType(name: "unsigned short", size: 16, align: 16,
>> encoding: DW_ATE_unsigned)
>> +!75 = !DILocation(line: 21, column: 18, scope: !67)
>> +!76 = !DILocalVariable(name: "c", scope: !67, file: !1, line: 22, type:
>> !77)
>> +!77 = !DIBasicType(name: "char", size: 8, align: 8, encoding:
>> DW_ATE_signed_char)
>> +!78 = !DILocation(line: 22, column: 8, scope: !67)
>> +!79 = !DILocalVariable(name: "uc", scope: !67, file: !1, line: 23, type:
>> !80)
>> +!80 = !DIBasicType(name: "unsigned char", size: 8, align: 8, encoding:
>> DW_ATE_unsigned_char)
>> +!81 = !DILocation(line: 23, column: 17, scope: !67)
>> +!82 = !DILocalVariable(name: "sc", scope: !67, file: !1, line: 24, type:
>> !83)
>> +!83 = !DIBasicType(name: "signed char", size: 8, align: 8, encoding:
>> DW_ATE_signed_char)
>> +!84 = !DILocation(line: 24, column: 15, scope: !67)
>> +!85 = !DILocalVariable(name: "c16", scope: !67, file: !1, line: 25,
>> type: !86)
>> +!86 = !DIBasicType(name: "char16_t", size: 16, align: 16, encoding:
>> DW_ATE_UTF)
>> +!87 = !DILocation(line: 25, column: 12, scope: !67)
>> +!88 = !DILocalVariable(name: "c32", scope: !67, file: !1, line: 26,
>> type: !89)
>> +!89 = !DIBasicType(name: "char32_t", size: 32, align: 32, encoding:
>> DW_ATE_UTF)
>> +!90 = !DILocation(line: 26, column: 12, scope: !67)
>> +!91 = !DILocation(line: 27, column: 1, scope: !67)
>>
>>
>> _______________________________________________
>> llvm-commits mailing list
>> llvm-commits at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-commits
>>
>
>
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