r310983 - PR19668, PR23034: Fix handling of move constructors and deleted copy
Richard Smith via cfe-commits
cfe-commits at lists.llvm.org
Tue Aug 15 18:49:53 PDT 2017
Author: rsmith
Date: Tue Aug 15 18:49:53 2017
New Revision: 310983
URL: http://llvm.org/viewvc/llvm-project?rev=310983&view=rev
Log:
PR19668, PR23034: Fix handling of move constructors and deleted copy
constructors when deciding whether classes should be passed indirectly.
This fixes ABI differences between Clang and GCC:
* Previously, Clang ignored the move constructor when making this
determination. It now takes the move constructor into account, per
https://github.com/itanium-cxx-abi/cxx-abi/pull/17 (this change may
seem recent, but the ABI change was agreed on the Itanium C++ ABI
list a long time ago).
* Previously, Clang's behavior when the copy constructor was deleted
was unstable -- depending on whether the lazy declaration of the
copy constructor had been triggered, you might get different behavior.
We now eagerly declare the copy constructor whenever its deletedness
is unclear, and ignore deleted copy/move constructors when looking for
a trivial such constructor.
This also fixes an ABI difference between Clang and MSVC:
* If the copy constructor would be implicitly deleted (but has not been
lazily declared yet), for instance because the class has an rvalue
reference member, we would pass it directly. We now pass such a class
indirectly, matching MSVC.
Based on a patch by Vassil Vassilev, which was based on a patch by Bernd
Schmidt, which was based on a patch by Reid Kleckner!
This is a re-commit of r310401, which was reverted in r310464 due to ARM
failures (which should now be fixed).
Modified:
cfe/trunk/include/clang/AST/DeclCXX.h
cfe/trunk/lib/AST/ASTImporter.cpp
cfe/trunk/lib/AST/DeclCXX.cpp
cfe/trunk/lib/CodeGen/CGCXXABI.cpp
cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp
cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp
cfe/trunk/lib/Sema/SemaDeclCXX.cpp
cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
cfe/trunk/lib/Serialization/ASTWriter.cpp
cfe/trunk/test/CodeGenCXX/uncopyable-args.cpp
cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
Modified: cfe/trunk/include/clang/AST/DeclCXX.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/AST/DeclCXX.h?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/include/clang/AST/DeclCXX.h (original)
+++ cfe/trunk/include/clang/AST/DeclCXX.h Tue Aug 15 18:49:53 2017
@@ -374,6 +374,7 @@ class CXXRecordDecl : public RecordDecl
/// \brief These flags are \c true if a defaulted corresponding special
/// member can't be fully analyzed without performing overload resolution.
/// @{
+ unsigned NeedOverloadResolutionForCopyConstructor : 1;
unsigned NeedOverloadResolutionForMoveConstructor : 1;
unsigned NeedOverloadResolutionForMoveAssignment : 1;
unsigned NeedOverloadResolutionForDestructor : 1;
@@ -382,6 +383,7 @@ class CXXRecordDecl : public RecordDecl
/// \brief These flags are \c true if an implicit defaulted corresponding
/// special member would be defined as deleted.
/// @{
+ unsigned DefaultedCopyConstructorIsDeleted : 1;
unsigned DefaultedMoveConstructorIsDeleted : 1;
unsigned DefaultedMoveAssignmentIsDeleted : 1;
unsigned DefaultedDestructorIsDeleted : 1;
@@ -414,6 +416,12 @@ class CXXRecordDecl : public RecordDecl
/// constructor.
unsigned HasDefaultedDefaultConstructor : 1;
+ /// \brief True if this class can be passed in a non-address-preserving
+ /// fashion (such as in registers) according to the C++ language rules.
+ /// This does not imply anything about how the ABI in use will actually
+ /// pass an object of this class.
+ unsigned CanPassInRegisters : 1;
+
/// \brief True if a defaulted default constructor for this class would
/// be constexpr.
unsigned DefaultedDefaultConstructorIsConstexpr : 1;
@@ -810,18 +818,50 @@ public:
return data().FirstFriend.isValid();
}
+ /// \brief \c true if a defaulted copy constructor for this class would be
+ /// deleted.
+ bool defaultedCopyConstructorIsDeleted() const {
+ assert((!needsOverloadResolutionForCopyConstructor() ||
+ (data().DeclaredSpecialMembers & SMF_CopyConstructor)) &&
+ "this property has not yet been computed by Sema");
+ return data().DefaultedCopyConstructorIsDeleted;
+ }
+
+ /// \brief \c true if a defaulted move constructor for this class would be
+ /// deleted.
+ bool defaultedMoveConstructorIsDeleted() const {
+ assert((!needsOverloadResolutionForMoveConstructor() ||
+ (data().DeclaredSpecialMembers & SMF_MoveConstructor)) &&
+ "this property has not yet been computed by Sema");
+ return data().DefaultedMoveConstructorIsDeleted;
+ }
+
+ /// \brief \c true if a defaulted destructor for this class would be deleted.
+ bool defaultedDestructorIsDeleted() const {
+ return !data().DefaultedDestructorIsDeleted;
+ }
+
+ /// \brief \c true if we know for sure that this class has a single,
+ /// accessible, unambiguous copy constructor that is not deleted.
+ bool hasSimpleCopyConstructor() const {
+ return !hasUserDeclaredCopyConstructor() &&
+ !data().DefaultedCopyConstructorIsDeleted;
+ }
+
/// \brief \c true if we know for sure that this class has a single,
/// accessible, unambiguous move constructor that is not deleted.
bool hasSimpleMoveConstructor() const {
return !hasUserDeclaredMoveConstructor() && hasMoveConstructor() &&
!data().DefaultedMoveConstructorIsDeleted;
}
+
/// \brief \c true if we know for sure that this class has a single,
/// accessible, unambiguous move assignment operator that is not deleted.
bool hasSimpleMoveAssignment() const {
return !hasUserDeclaredMoveAssignment() && hasMoveAssignment() &&
!data().DefaultedMoveAssignmentIsDeleted;
}
+
/// \brief \c true if we know for sure that this class has an accessible
/// destructor that is not deleted.
bool hasSimpleDestructor() const {
@@ -877,7 +917,16 @@ public:
/// \brief Determine whether we need to eagerly declare a defaulted copy
/// constructor for this class.
bool needsOverloadResolutionForCopyConstructor() const {
- return data().HasMutableFields;
+ // C++17 [class.copy.ctor]p6:
+ // If the class definition declares a move constructor or move assignment
+ // operator, the implicitly declared copy constructor is defined as
+ // deleted.
+ // In MSVC mode, sometimes a declared move assignment does not delete an
+ // implicit copy constructor, so defer this choice to Sema.
+ if (data().UserDeclaredSpecialMembers &
+ (SMF_MoveConstructor | SMF_MoveAssignment))
+ return true;
+ return data().NeedOverloadResolutionForCopyConstructor;
}
/// \brief Determine whether an implicit copy constructor for this type
@@ -918,7 +967,16 @@ public:
needsImplicitMoveConstructor();
}
- /// \brief Set that we attempted to declare an implicitly move
+ /// \brief Set that we attempted to declare an implicit copy
+ /// constructor, but overload resolution failed so we deleted it.
+ void setImplicitCopyConstructorIsDeleted() {
+ assert((data().DefaultedCopyConstructorIsDeleted ||
+ needsOverloadResolutionForCopyConstructor()) &&
+ "Copy constructor should not be deleted");
+ data().DefaultedCopyConstructorIsDeleted = true;
+ }
+
+ /// \brief Set that we attempted to declare an implicit move
/// constructor, but overload resolution failed so we deleted it.
void setImplicitMoveConstructorIsDeleted() {
assert((data().DefaultedMoveConstructorIsDeleted ||
@@ -1315,6 +1373,18 @@ public:
return data().HasIrrelevantDestructor;
}
+ /// \brief Determine whether this class has at least one trivial, non-deleted
+ /// copy or move constructor.
+ bool canPassInRegisters() const {
+ return data().CanPassInRegisters;
+ }
+
+ /// \brief Set that we can pass this RecordDecl in registers.
+ // FIXME: This should be set as part of completeDefinition.
+ void setCanPassInRegisters(bool CanPass) {
+ data().CanPassInRegisters = CanPass;
+ }
+
/// \brief Determine whether this class has a non-literal or/ volatile type
/// non-static data member or base class.
bool hasNonLiteralTypeFieldsOrBases() const {
Modified: cfe/trunk/lib/AST/ASTImporter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ASTImporter.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ASTImporter.cpp (original)
+++ cfe/trunk/lib/AST/ASTImporter.cpp Tue Aug 15 18:49:53 2017
@@ -956,12 +956,16 @@ bool ASTNodeImporter::ImportDefinition(R
ToData.HasUninitializedFields = FromData.HasUninitializedFields;
ToData.HasInheritedConstructor = FromData.HasInheritedConstructor;
ToData.HasInheritedAssignment = FromData.HasInheritedAssignment;
+ ToData.NeedOverloadResolutionForCopyConstructor
+ = FromData.NeedOverloadResolutionForCopyConstructor;
ToData.NeedOverloadResolutionForMoveConstructor
= FromData.NeedOverloadResolutionForMoveConstructor;
ToData.NeedOverloadResolutionForMoveAssignment
= FromData.NeedOverloadResolutionForMoveAssignment;
ToData.NeedOverloadResolutionForDestructor
= FromData.NeedOverloadResolutionForDestructor;
+ ToData.DefaultedCopyConstructorIsDeleted
+ = FromData.DefaultedCopyConstructorIsDeleted;
ToData.DefaultedMoveConstructorIsDeleted
= FromData.DefaultedMoveConstructorIsDeleted;
ToData.DefaultedMoveAssignmentIsDeleted
@@ -973,6 +977,7 @@ bool ASTNodeImporter::ImportDefinition(R
= FromData.HasConstexprNonCopyMoveConstructor;
ToData.HasDefaultedDefaultConstructor
= FromData.HasDefaultedDefaultConstructor;
+ ToData.CanPassInRegisters = FromData.CanPassInRegisters;
ToData.DefaultedDefaultConstructorIsConstexpr
= FromData.DefaultedDefaultConstructorIsConstexpr;
ToData.HasConstexprDefaultConstructor
Modified: cfe/trunk/lib/AST/DeclCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/DeclCXX.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/AST/DeclCXX.cpp (original)
+++ cfe/trunk/lib/AST/DeclCXX.cpp Tue Aug 15 18:49:53 2017
@@ -55,15 +55,18 @@ CXXRecordDecl::DefinitionData::Definitio
HasOnlyCMembers(true), HasInClassInitializer(false),
HasUninitializedReferenceMember(false), HasUninitializedFields(false),
HasInheritedConstructor(false), HasInheritedAssignment(false),
+ NeedOverloadResolutionForCopyConstructor(false),
NeedOverloadResolutionForMoveConstructor(false),
NeedOverloadResolutionForMoveAssignment(false),
NeedOverloadResolutionForDestructor(false),
+ DefaultedCopyConstructorIsDeleted(false),
DefaultedMoveConstructorIsDeleted(false),
DefaultedMoveAssignmentIsDeleted(false),
DefaultedDestructorIsDeleted(false), HasTrivialSpecialMembers(SMF_All),
DeclaredNonTrivialSpecialMembers(0), HasIrrelevantDestructor(true),
HasConstexprNonCopyMoveConstructor(false),
HasDefaultedDefaultConstructor(false),
+ CanPassInRegisters(true),
DefaultedDefaultConstructorIsConstexpr(true),
HasConstexprDefaultConstructor(false),
HasNonLiteralTypeFieldsOrBases(false), ComputedVisibleConversions(false),
@@ -352,8 +355,10 @@ CXXRecordDecl::setBases(CXXBaseSpecifier
setHasVolatileMember(true);
// Keep track of the presence of mutable fields.
- if (BaseClassDecl->hasMutableFields())
+ if (BaseClassDecl->hasMutableFields()) {
data().HasMutableFields = true;
+ data().NeedOverloadResolutionForCopyConstructor = true;
+ }
if (BaseClassDecl->hasUninitializedReferenceMember())
data().HasUninitializedReferenceMember = true;
@@ -406,6 +411,8 @@ void CXXRecordDecl::addedClassSubobject(
// -- a direct or virtual base class B that cannot be copied/moved [...]
// -- a non-static data member of class type M (or array thereof)
// that cannot be copied or moved [...]
+ if (!Subobj->hasSimpleCopyConstructor())
+ data().NeedOverloadResolutionForCopyConstructor = true;
if (!Subobj->hasSimpleMoveConstructor())
data().NeedOverloadResolutionForMoveConstructor = true;
@@ -426,6 +433,7 @@ void CXXRecordDecl::addedClassSubobject(
// -- any non-static data member has a type with a destructor
// that is deleted or inaccessible from the defaulted [ctor or dtor].
if (!Subobj->hasSimpleDestructor()) {
+ data().NeedOverloadResolutionForCopyConstructor = true;
data().NeedOverloadResolutionForMoveConstructor = true;
data().NeedOverloadResolutionForDestructor = true;
}
@@ -711,8 +719,10 @@ void CXXRecordDecl::addedMember(Decl *D)
data().IsStandardLayout = false;
// Keep track of the presence of mutable fields.
- if (Field->isMutable())
+ if (Field->isMutable()) {
data().HasMutableFields = true;
+ data().NeedOverloadResolutionForCopyConstructor = true;
+ }
// C++11 [class.union]p8, DR1460:
// If X is a union, a non-static data member of X that is not an anonymous
@@ -756,6 +766,12 @@ void CXXRecordDecl::addedMember(Decl *D)
// A standard-layout class is a class that:
// -- has no non-static data members of type [...] reference,
data().IsStandardLayout = false;
+
+ // C++1z [class.copy.ctor]p10:
+ // A defaulted copy constructor for a class X is defined as deleted if X has:
+ // -- a non-static data member of rvalue reference type
+ if (T->isRValueReferenceType())
+ data().DefaultedCopyConstructorIsDeleted = true;
}
if (!Field->hasInClassInitializer() && !Field->isMutable()) {
@@ -809,6 +825,10 @@ void CXXRecordDecl::addedMember(Decl *D)
// We may need to perform overload resolution to determine whether a
// field can be moved if it's const or volatile qualified.
if (T.getCVRQualifiers() & (Qualifiers::Const | Qualifiers::Volatile)) {
+ // We need to care about 'const' for the copy constructor because an
+ // implicit copy constructor might be declared with a non-const
+ // parameter.
+ data().NeedOverloadResolutionForCopyConstructor = true;
data().NeedOverloadResolutionForMoveConstructor = true;
data().NeedOverloadResolutionForMoveAssignment = true;
}
@@ -819,6 +839,8 @@ void CXXRecordDecl::addedMember(Decl *D)
// -- X is a union-like class that has a variant member with a
// non-trivial [corresponding special member]
if (isUnion()) {
+ if (FieldRec->hasNonTrivialCopyConstructor())
+ data().DefaultedCopyConstructorIsDeleted = true;
if (FieldRec->hasNonTrivialMoveConstructor())
data().DefaultedMoveConstructorIsDeleted = true;
if (FieldRec->hasNonTrivialMoveAssignment())
@@ -830,6 +852,8 @@ void CXXRecordDecl::addedMember(Decl *D)
// For an anonymous union member, our overload resolution will perform
// overload resolution for its members.
if (Field->isAnonymousStructOrUnion()) {
+ data().NeedOverloadResolutionForCopyConstructor |=
+ FieldRec->data().NeedOverloadResolutionForCopyConstructor;
data().NeedOverloadResolutionForMoveConstructor |=
FieldRec->data().NeedOverloadResolutionForMoveConstructor;
data().NeedOverloadResolutionForMoveAssignment |=
@@ -915,8 +939,10 @@ void CXXRecordDecl::addedMember(Decl *D)
}
// Keep track of the presence of mutable fields.
- if (FieldRec->hasMutableFields())
+ if (FieldRec->hasMutableFields()) {
data().HasMutableFields = true;
+ data().NeedOverloadResolutionForCopyConstructor = true;
+ }
// C++11 [class.copy]p13:
// If the implicitly-defined constructor would satisfy the
@@ -1450,7 +1476,7 @@ void CXXRecordDecl::completeDefinition()
void CXXRecordDecl::completeDefinition(CXXFinalOverriderMap *FinalOverriders) {
RecordDecl::completeDefinition();
-
+
// If the class may be abstract (but hasn't been marked as such), check for
// any pure final overriders.
if (mayBeAbstract()) {
Modified: cfe/trunk/lib/CodeGen/CGCXXABI.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGCXXABI.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGCXXABI.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGCXXABI.cpp Tue Aug 15 18:49:53 2017
@@ -30,38 +30,9 @@ void CGCXXABI::ErrorUnsupportedABI(CodeG
}
bool CGCXXABI::canCopyArgument(const CXXRecordDecl *RD) const {
- // If RD has a non-trivial move or copy constructor, we cannot copy the
- // argument.
- if (RD->hasNonTrivialCopyConstructor() || RD->hasNonTrivialMoveConstructor())
- return false;
-
- // If RD has a non-trivial destructor, we cannot copy the argument.
- if (RD->hasNonTrivialDestructor())
- return false;
-
// We can only copy the argument if there exists at least one trivial,
// non-deleted copy or move constructor.
- // FIXME: This assumes that all lazily declared copy and move constructors are
- // not deleted. This assumption might not be true in some corner cases.
- bool CopyDeleted = false;
- bool MoveDeleted = false;
- for (const CXXConstructorDecl *CD : RD->ctors()) {
- if (CD->isCopyConstructor() || CD->isMoveConstructor()) {
- assert(CD->isTrivial());
- // We had at least one undeleted trivial copy or move ctor. Return
- // directly.
- if (!CD->isDeleted())
- return true;
- if (CD->isCopyConstructor())
- CopyDeleted = true;
- else
- MoveDeleted = true;
- }
- }
-
- // If all trivial copy and move constructors are deleted, we cannot copy the
- // argument.
- return !(CopyDeleted && MoveDeleted);
+ return RD->canPassInRegisters();
}
llvm::Constant *CGCXXABI::GetBogusMemberPointer(QualType T) {
Modified: cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp (original)
+++ cfe/trunk/lib/CodeGen/ItaniumCXXABI.cpp Tue Aug 15 18:49:53 2017
@@ -63,11 +63,8 @@ public:
bool classifyReturnType(CGFunctionInfo &FI) const override;
RecordArgABI getRecordArgABI(const CXXRecordDecl *RD) const override {
- // Structures with either a non-trivial destructor or a non-trivial
- // copy constructor are always indirect.
- // FIXME: Use canCopyArgument() when it is fixed to handle lazily declared
- // special members.
- if (RD->hasNonTrivialDestructor() || RD->hasNonTrivialCopyConstructor())
+ // If C++ prohibits us from making a copy, pass by address.
+ if (!canCopyArgument(RD))
return RAA_Indirect;
return RAA_Default;
}
@@ -1014,10 +1011,8 @@ bool ItaniumCXXABI::classifyReturnType(C
if (!RD)
return false;
- // Return indirectly if we have a non-trivial copy ctor or non-trivial dtor.
- // FIXME: Use canCopyArgument() when it is fixed to handle lazily declared
- // special members.
- if (RD->hasNonTrivialDestructor() || RD->hasNonTrivialCopyConstructor()) {
+ // If C++ prohibits us from making a copy, return by address.
+ if (!canCopyArgument(RD)) {
auto Align = CGM.getContext().getTypeAlignInChars(FI.getReturnType());
FI.getReturnInfo() = ABIArgInfo::getIndirect(Align, /*ByVal=*/false);
return true;
Modified: cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp (original)
+++ cfe/trunk/lib/CodeGen/MicrosoftCXXABI.cpp Tue Aug 15 18:49:53 2017
@@ -819,46 +819,44 @@ MicrosoftCXXABI::getRecordArgABI(const C
return RAA_Default;
case llvm::Triple::x86_64:
- // Win64 passes objects with non-trivial copy ctors indirectly.
- if (RD->hasNonTrivialCopyConstructor())
- return RAA_Indirect;
-
- // If an object has a destructor, we'd really like to pass it indirectly
+ // If a class has a destructor, we'd really like to pass it indirectly
// because it allows us to elide copies. Unfortunately, MSVC makes that
// impossible for small types, which it will pass in a single register or
// stack slot. Most objects with dtors are large-ish, so handle that early.
// We can't call out all large objects as being indirect because there are
// multiple x64 calling conventions and the C++ ABI code shouldn't dictate
// how we pass large POD types.
+ //
+ // Note: This permits small classes with nontrivial destructors to be
+ // passed in registers, which is non-conforming.
if (RD->hasNonTrivialDestructor() &&
getContext().getTypeSize(RD->getTypeForDecl()) > 64)
return RAA_Indirect;
- // If this is true, the implicit copy constructor that Sema would have
- // created would not be deleted. FIXME: We should provide a more direct way
- // for CodeGen to ask whether the constructor was deleted.
- if (!RD->hasUserDeclaredCopyConstructor() &&
- !RD->hasUserDeclaredMoveConstructor() &&
- !RD->needsOverloadResolutionForMoveConstructor() &&
- !RD->hasUserDeclaredMoveAssignment() &&
- !RD->needsOverloadResolutionForMoveAssignment())
- return RAA_Default;
-
- // Otherwise, Sema should have created an implicit copy constructor if
- // needed.
- assert(!RD->needsImplicitCopyConstructor());
-
- // We have to make sure the trivial copy constructor isn't deleted.
- for (const CXXConstructorDecl *CD : RD->ctors()) {
- if (CD->isCopyConstructor()) {
- assert(CD->isTrivial());
- // We had at least one undeleted trivial copy ctor. Return directly.
- if (!CD->isDeleted())
- return RAA_Default;
+ // If a class has at least one non-deleted, trivial copy constructor, it
+ // is passed according to the C ABI. Otherwise, it is passed indirectly.
+ //
+ // Note: This permits classes with non-trivial copy or move ctors to be
+ // passed in registers, so long as they *also* have a trivial copy ctor,
+ // which is non-conforming.
+ if (RD->needsImplicitCopyConstructor()) {
+ // If the copy ctor has not yet been declared, we can read its triviality
+ // off the AST.
+ if (!RD->defaultedCopyConstructorIsDeleted() &&
+ RD->hasTrivialCopyConstructor())
+ return RAA_Default;
+ } else {
+ // Otherwise, we need to find the copy constructor(s) and ask.
+ for (const CXXConstructorDecl *CD : RD->ctors()) {
+ if (CD->isCopyConstructor()) {
+ // We had at least one nondeleted trivial copy ctor. Return directly.
+ if (!CD->isDeleted() && CD->isTrivial())
+ return RAA_Default;
+ }
}
}
- // The trivial copy constructor was deleted. Return indirectly.
+ // We have no trivial, non-deleted copy constructor.
return RAA_Indirect;
}
Modified: cfe/trunk/lib/Sema/SemaDeclCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaDeclCXX.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/Sema/SemaDeclCXX.cpp (original)
+++ cfe/trunk/lib/Sema/SemaDeclCXX.cpp Tue Aug 15 18:49:53 2017
@@ -5726,6 +5726,53 @@ static void DefineImplicitSpecialMember(
}
}
+/// Determine whether a type is permitted to be passed or returned in
+/// registers, per C++ [class.temporary]p3.
+static bool computeCanPassInRegisters(Sema &S, CXXRecordDecl *D) {
+ if (D->isDependentType() || D->isInvalidDecl())
+ return false;
+
+ // Per C++ [class.temporary]p3, the relevant condition is:
+ // each copy constructor, move constructor, and destructor of X is
+ // either trivial or deleted, and X has at least one non-deleted copy
+ // or move constructor
+ bool HasNonDeletedCopyOrMove = false;
+
+ if (D->needsImplicitCopyConstructor() &&
+ !D->defaultedCopyConstructorIsDeleted()) {
+ if (!D->hasTrivialCopyConstructor())
+ return false;
+ HasNonDeletedCopyOrMove = true;
+ }
+
+ if (S.getLangOpts().CPlusPlus11 && D->needsImplicitMoveConstructor() &&
+ !D->defaultedMoveConstructorIsDeleted()) {
+ if (!D->hasTrivialMoveConstructor())
+ return false;
+ HasNonDeletedCopyOrMove = true;
+ }
+
+ if (D->needsImplicitDestructor() && !D->defaultedDestructorIsDeleted() &&
+ !D->hasTrivialDestructor())
+ return false;
+
+ for (const CXXMethodDecl *MD : D->methods()) {
+ if (MD->isDeleted())
+ continue;
+
+ auto *CD = dyn_cast<CXXConstructorDecl>(MD);
+ if (CD && CD->isCopyOrMoveConstructor())
+ HasNonDeletedCopyOrMove = true;
+ else if (!isa<CXXDestructorDecl>(MD))
+ continue;
+
+ if (!MD->isTrivial())
+ return false;
+ }
+
+ return HasNonDeletedCopyOrMove;
+}
+
/// \brief Perform semantic checks on a class definition that has been
/// completing, introducing implicitly-declared members, checking for
/// abstract types, etc.
@@ -5870,6 +5917,8 @@ void Sema::CheckCompletedCXXClass(CXXRec
}
checkClassLevelDLLAttribute(Record);
+
+ Record->setCanPassInRegisters(computeCanPassInRegisters(*this, Record));
}
/// Look up the special member function that would be called by a special
@@ -7496,8 +7545,7 @@ void Sema::ActOnFinishCXXMemberSpecifica
reinterpret_cast<Decl**>(FieldCollector->getCurFields()),
FieldCollector->getCurNumFields()), LBrac, RBrac, AttrList);
- CheckCompletedCXXClass(
- dyn_cast_or_null<CXXRecordDecl>(TagDecl));
+ CheckCompletedCXXClass(dyn_cast_or_null<CXXRecordDecl>(TagDecl));
}
/// AddImplicitlyDeclaredMembersToClass - Adds any implicitly-declared
@@ -11929,8 +11977,10 @@ CXXConstructorDecl *Sema::DeclareImplici
Scope *S = getScopeForContext(ClassDecl);
CheckImplicitSpecialMemberDeclaration(S, CopyConstructor);
- if (ShouldDeleteSpecialMember(CopyConstructor, CXXCopyConstructor))
+ if (ShouldDeleteSpecialMember(CopyConstructor, CXXCopyConstructor)) {
+ ClassDecl->setImplicitCopyConstructorIsDeleted();
SetDeclDeleted(CopyConstructor, ClassLoc);
+ }
if (S)
PushOnScopeChains(CopyConstructor, S, false);
Modified: cfe/trunk/lib/Serialization/ASTReaderDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTReaderDecl.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTReaderDecl.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTReaderDecl.cpp Tue Aug 15 18:49:53 2017
@@ -1559,9 +1559,11 @@ void ASTDeclReader::ReadCXXDefinitionDat
Data.HasUninitializedFields = Record.readInt();
Data.HasInheritedConstructor = Record.readInt();
Data.HasInheritedAssignment = Record.readInt();
+ Data.NeedOverloadResolutionForCopyConstructor = Record.readInt();
Data.NeedOverloadResolutionForMoveConstructor = Record.readInt();
Data.NeedOverloadResolutionForMoveAssignment = Record.readInt();
Data.NeedOverloadResolutionForDestructor = Record.readInt();
+ Data.DefaultedCopyConstructorIsDeleted = Record.readInt();
Data.DefaultedMoveConstructorIsDeleted = Record.readInt();
Data.DefaultedMoveAssignmentIsDeleted = Record.readInt();
Data.DefaultedDestructorIsDeleted = Record.readInt();
@@ -1570,6 +1572,7 @@ void ASTDeclReader::ReadCXXDefinitionDat
Data.HasIrrelevantDestructor = Record.readInt();
Data.HasConstexprNonCopyMoveConstructor = Record.readInt();
Data.HasDefaultedDefaultConstructor = Record.readInt();
+ Data.CanPassInRegisters = Record.readInt();
Data.DefaultedDefaultConstructorIsConstexpr = Record.readInt();
Data.HasConstexprDefaultConstructor = Record.readInt();
Data.HasNonLiteralTypeFieldsOrBases = Record.readInt();
@@ -1697,9 +1700,11 @@ void ASTDeclReader::MergeDefinitionData(
MATCH_FIELD(HasUninitializedFields)
MATCH_FIELD(HasInheritedConstructor)
MATCH_FIELD(HasInheritedAssignment)
+ MATCH_FIELD(NeedOverloadResolutionForCopyConstructor)
MATCH_FIELD(NeedOverloadResolutionForMoveConstructor)
MATCH_FIELD(NeedOverloadResolutionForMoveAssignment)
MATCH_FIELD(NeedOverloadResolutionForDestructor)
+ MATCH_FIELD(DefaultedCopyConstructorIsDeleted)
MATCH_FIELD(DefaultedMoveConstructorIsDeleted)
MATCH_FIELD(DefaultedMoveAssignmentIsDeleted)
MATCH_FIELD(DefaultedDestructorIsDeleted)
@@ -1708,6 +1713,7 @@ void ASTDeclReader::MergeDefinitionData(
MATCH_FIELD(HasIrrelevantDestructor)
OR_FIELD(HasConstexprNonCopyMoveConstructor)
OR_FIELD(HasDefaultedDefaultConstructor)
+ MATCH_FIELD(CanPassInRegisters)
MATCH_FIELD(DefaultedDefaultConstructorIsConstexpr)
OR_FIELD(HasConstexprDefaultConstructor)
MATCH_FIELD(HasNonLiteralTypeFieldsOrBases)
Modified: cfe/trunk/lib/Serialization/ASTWriter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Serialization/ASTWriter.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/lib/Serialization/ASTWriter.cpp (original)
+++ cfe/trunk/lib/Serialization/ASTWriter.cpp Tue Aug 15 18:49:53 2017
@@ -5875,9 +5875,11 @@ void ASTRecordWriter::AddCXXDefinitionDa
Record->push_back(Data.HasUninitializedFields);
Record->push_back(Data.HasInheritedConstructor);
Record->push_back(Data.HasInheritedAssignment);
+ Record->push_back(Data.NeedOverloadResolutionForCopyConstructor);
Record->push_back(Data.NeedOverloadResolutionForMoveConstructor);
Record->push_back(Data.NeedOverloadResolutionForMoveAssignment);
Record->push_back(Data.NeedOverloadResolutionForDestructor);
+ Record->push_back(Data.DefaultedCopyConstructorIsDeleted);
Record->push_back(Data.DefaultedMoveConstructorIsDeleted);
Record->push_back(Data.DefaultedMoveAssignmentIsDeleted);
Record->push_back(Data.DefaultedDestructorIsDeleted);
@@ -5886,6 +5888,7 @@ void ASTRecordWriter::AddCXXDefinitionDa
Record->push_back(Data.HasIrrelevantDestructor);
Record->push_back(Data.HasConstexprNonCopyMoveConstructor);
Record->push_back(Data.HasDefaultedDefaultConstructor);
+ Record->push_back(Data.CanPassInRegisters);
Record->push_back(Data.DefaultedDefaultConstructorIsConstexpr);
Record->push_back(Data.HasConstexprDefaultConstructor);
Record->push_back(Data.HasNonLiteralTypeFieldsOrBases);
Modified: cfe/trunk/test/CodeGenCXX/uncopyable-args.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGenCXX/uncopyable-args.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/test/CodeGenCXX/uncopyable-args.cpp (original)
+++ cfe/trunk/test/CodeGenCXX/uncopyable-args.cpp Tue Aug 15 18:49:53 2017
@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
-// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-msvc -emit-llvm -o - %s | FileCheck %s -check-prefix=WIN64
+// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-msvc -emit-llvm -o - %s -fms-compatibility -fms-compatibility-version=18 | FileCheck %s -check-prefix=WIN64 -check-prefix=WIN64-18
+// RUN: %clang_cc1 -std=c++11 -triple x86_64-windows-msvc -emit-llvm -o - %s -fms-compatibility -fms-compatibility-version=19 | FileCheck %s -check-prefix=WIN64 -check-prefix=WIN64-19
namespace trivial {
// Trivial structs should be passed directly.
@@ -52,12 +53,11 @@ void foo(A);
void bar() {
foo({});
}
-// FIXME: The copy ctor is implicitly deleted.
-// CHECK-DISABLED-LABEL: define void @_ZN9move_ctor3barEv()
-// CHECK-DISABLED: call void @_Z{{.*}}C1Ev(
-// CHECK-DISABLED-NOT: call
-// CHECK-DISABLED: call void @_ZN9move_ctor3fooENS_1AE(%"struct.move_ctor::A"* %{{.*}})
-// CHECK-DISABLED-LABEL: declare void @_ZN9move_ctor3fooENS_1AE(%"struct.move_ctor::A"*)
+// CHECK-LABEL: define void @_ZN9move_ctor3barEv()
+// CHECK: call void @_Z{{.*}}C1Ev(
+// CHECK-NOT: call
+// CHECK: call void @_ZN9move_ctor3fooENS_1AE(%"struct.move_ctor::A"* %{{.*}})
+// CHECK-LABEL: declare void @_ZN9move_ctor3fooENS_1AE(%"struct.move_ctor::A"*)
// WIN64-LABEL: declare void @"\01?foo at move_ctor@@YAXUA at 1@@Z"(%"struct.move_ctor::A"*)
}
@@ -73,12 +73,11 @@ void foo(A);
void bar() {
foo({});
}
-// FIXME: The copy ctor is deleted.
-// CHECK-DISABLED-LABEL: define void @_ZN11all_deleted3barEv()
-// CHECK-DISABLED: call void @_Z{{.*}}C1Ev(
-// CHECK-DISABLED-NOT: call
-// CHECK-DISABLED: call void @_ZN11all_deleted3fooENS_1AE(%"struct.all_deleted::A"* %{{.*}})
-// CHECK-DISABLED-LABEL: declare void @_ZN11all_deleted3fooENS_1AE(%"struct.all_deleted::A"*)
+// CHECK-LABEL: define void @_ZN11all_deleted3barEv()
+// CHECK: call void @_Z{{.*}}C1Ev(
+// CHECK-NOT: call
+// CHECK: call void @_ZN11all_deleted3fooENS_1AE(%"struct.all_deleted::A"* %{{.*}})
+// CHECK-LABEL: declare void @_ZN11all_deleted3fooENS_1AE(%"struct.all_deleted::A"*)
// WIN64-LABEL: declare void @"\01?foo at all_deleted@@YAXUA at 1@@Z"(%"struct.all_deleted::A"*)
}
@@ -93,14 +92,15 @@ void foo(A);
void bar() {
foo({});
}
-// FIXME: The copy and move ctors are implicitly deleted.
-// CHECK-DISABLED-LABEL: define void @_ZN18implicitly_deleted3barEv()
-// CHECK-DISABLED: call void @_Z{{.*}}C1Ev(
-// CHECK-DISABLED-NOT: call
-// CHECK-DISABLED: call void @_ZN18implicitly_deleted3fooENS_1AE(%"struct.implicitly_deleted::A"* %{{.*}})
-// CHECK-DISABLED-LABEL: declare void @_ZN18implicitly_deleted3fooENS_1AE(%"struct.implicitly_deleted::A"*)
-
-// WIN64-LABEL: declare void @"\01?foo at implicitly_deleted@@YAXUA at 1@@Z"(%"struct.implicitly_deleted::A"*)
+// CHECK-LABEL: define void @_ZN18implicitly_deleted3barEv()
+// CHECK: call void @_Z{{.*}}C1Ev(
+// CHECK-NOT: call
+// CHECK: call void @_ZN18implicitly_deleted3fooENS_1AE(%"struct.implicitly_deleted::A"* %{{.*}})
+// CHECK-LABEL: declare void @_ZN18implicitly_deleted3fooENS_1AE(%"struct.implicitly_deleted::A"*)
+
+// In MSVC 2013, the copy ctor is not deleted by a move assignment. In MSVC 2015, it is.
+// WIN64-18-LABEL: declare void @"\01?foo at implicitly_deleted@@YAXUA at 1@@Z"(i64
+// WIN64-19-LABEL: declare void @"\01?foo at implicitly_deleted@@YAXUA at 1@@Z"(%"struct.implicitly_deleted::A"*)
}
namespace one_deleted {
@@ -113,12 +113,11 @@ void foo(A);
void bar() {
foo({});
}
-// FIXME: The copy constructor is implicitly deleted.
-// CHECK-DISABLED-LABEL: define void @_ZN11one_deleted3barEv()
-// CHECK-DISABLED: call void @_Z{{.*}}C1Ev(
-// CHECK-DISABLED-NOT: call
-// CHECK-DISABLED: call void @_ZN11one_deleted3fooENS_1AE(%"struct.one_deleted::A"* %{{.*}})
-// CHECK-DISABLED-LABEL: declare void @_ZN11one_deleted3fooENS_1AE(%"struct.one_deleted::A"*)
+// CHECK-LABEL: define void @_ZN11one_deleted3barEv()
+// CHECK: call void @_Z{{.*}}C1Ev(
+// CHECK-NOT: call
+// CHECK: call void @_ZN11one_deleted3fooENS_1AE(%"struct.one_deleted::A"* %{{.*}})
+// CHECK-LABEL: declare void @_ZN11one_deleted3fooENS_1AE(%"struct.one_deleted::A"*)
// WIN64-LABEL: declare void @"\01?foo at one_deleted@@YAXUA at 1@@Z"(%"struct.one_deleted::A"*)
}
@@ -195,12 +194,10 @@ void foo(B);
void bar() {
foo({});
}
-// FIXME: This class has a non-trivial copy ctor and a trivial copy ctor. It's
-// not clear whether we should pass by address or in registers.
-// CHECK-DISABLED-LABEL: define void @_ZN14two_copy_ctors3barEv()
-// CHECK-DISABLED: call void @_Z{{.*}}C1Ev(
-// CHECK-DISABLED: call void @_ZN14two_copy_ctors3fooENS_1BE(%"struct.two_copy_ctors::B"* %{{.*}})
-// CHECK-DISABLED-LABEL: declare void @_ZN14two_copy_ctors3fooENS_1BE(%"struct.two_copy_ctors::B"*)
+// CHECK-LABEL: define void @_ZN14two_copy_ctors3barEv()
+// CHECK: call void @_Z{{.*}}C1Ev(
+// CHECK: call void @_ZN14two_copy_ctors3fooENS_1BE(%"struct.two_copy_ctors::B"* %{{.*}})
+// CHECK-LABEL: declare void @_ZN14two_copy_ctors3fooENS_1BE(%"struct.two_copy_ctors::B"*)
// WIN64-LABEL: declare void @"\01?foo at two_copy_ctors@@YAXUB at 1@@Z"(%"struct.two_copy_ctors::B"*)
}
@@ -212,6 +209,7 @@ struct A {
void *p;
};
void *foo(A a) { return a.p; }
+// CHECK-LABEL: define i8* @_ZN15definition_only3fooENS_1AE(%"struct.definition_only::A"*
// WIN64-LABEL: define i8* @"\01?foo at definition_only@@YAPEAXUA at 1@@Z"(%"struct.definition_only::A"*
}
@@ -226,6 +224,7 @@ struct A {
B b;
};
void *foo(A a) { return a.b.p; }
+// CHECK-LABEL: define i8* @_ZN17deleted_by_member3fooENS_1AE(%"struct.deleted_by_member::A"*
// WIN64-LABEL: define i8* @"\01?foo at deleted_by_member@@YAPEAXUA at 1@@Z"(%"struct.deleted_by_member::A"*
}
@@ -239,6 +238,7 @@ struct A : B {
A();
};
void *foo(A a) { return a.p; }
+// CHECK-LABEL: define i8* @_ZN15deleted_by_base3fooENS_1AE(%"struct.deleted_by_base::A"*
// WIN64-LABEL: define i8* @"\01?foo at deleted_by_base@@YAPEAXUA at 1@@Z"(%"struct.deleted_by_base::A"*
}
@@ -253,6 +253,7 @@ struct A {
B b;
};
void *foo(A a) { return a.b.p; }
+// CHECK-LABEL: define i8* @_ZN22deleted_by_member_copy3fooENS_1AE(%"struct.deleted_by_member_copy::A"*
// WIN64-LABEL: define i8* @"\01?foo at deleted_by_member_copy@@YAPEAXUA at 1@@Z"(%"struct.deleted_by_member_copy::A"*
}
@@ -266,6 +267,7 @@ struct A : B {
A();
};
void *foo(A a) { return a.p; }
+// CHECK-LABEL: define i8* @_ZN20deleted_by_base_copy3fooENS_1AE(%"struct.deleted_by_base_copy::A"*
// WIN64-LABEL: define i8* @"\01?foo at deleted_by_base_copy@@YAPEAXUA at 1@@Z"(%"struct.deleted_by_base_copy::A"*
}
@@ -275,6 +277,75 @@ struct A {
A(const A &o) = delete;
void *p;
};
+// CHECK-LABEL: define i8* @_ZN15explicit_delete3fooENS_1AE(%"struct.explicit_delete::A"*
// WIN64-LABEL: define i8* @"\01?foo at explicit_delete@@YAPEAXUA at 1@@Z"(%"struct.explicit_delete::A"*
void *foo(A a) { return a.p; }
}
+
+namespace implicitly_deleted_copy_ctor {
+struct A {
+ // No move ctor due to copy assignment.
+ A &operator=(const A&);
+ // Deleted copy ctor due to rvalue ref member.
+ int &&ref;
+};
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1AE(%"struct.implicitly_deleted_copy_ctor::A"*
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAAEAHUA at 1@@Z"(%"struct.implicitly_deleted_copy_ctor::A"*
+int &foo(A a) { return a.ref; }
+
+struct B {
+ // Passed direct: has non-deleted trivial copy ctor.
+ B &operator=(const B&);
+ int &ref;
+};
+int &foo(B b) { return b.ref; }
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1BE(i32*
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAAEAHUB at 1@@Z"(i64
+
+struct X { X(const X&); };
+struct Y { Y(const Y&) = default; };
+
+union C {
+ C &operator=(const C&);
+ // Passed indirect: copy ctor deleted due to variant member with nontrivial copy ctor.
+ X x;
+ int n;
+};
+int foo(C c) { return c.n; }
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1CE(%"union.implicitly_deleted_copy_ctor::C"*
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAHTC at 1@@Z"(%"union.implicitly_deleted_copy_ctor::C"*
+
+struct D {
+ D &operator=(const D&);
+ // Passed indirect: copy ctor deleted due to variant member with nontrivial copy ctor.
+ union {
+ X x;
+ int n;
+ };
+};
+int foo(D d) { return d.n; }
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1DE(%"struct.implicitly_deleted_copy_ctor::D"*
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAHUD at 1@@Z"(%"struct.implicitly_deleted_copy_ctor::D"*
+
+union E {
+ // Passed direct: has non-deleted trivial copy ctor.
+ E &operator=(const E&);
+ Y y;
+ int n;
+};
+int foo(E e) { return e.n; }
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1EE(i32
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAHTE at 1@@Z"(i32
+
+struct F {
+ // Passed direct: has non-deleted trivial copy ctor.
+ F &operator=(const F&);
+ union {
+ Y y;
+ int n;
+ };
+};
+int foo(F f) { return f.n; }
+// CHECK-LABEL: define {{.*}} @_ZN28implicitly_deleted_copy_ctor3fooENS_1FE(i32
+// WIN64-LABEL: define {{.*}} @"\01?foo at implicitly_deleted_copy_ctor@@YAHUF at 1@@Z"(i32
+}
Modified: cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp?rev=310983&r1=310982&r2=310983&view=diff
==============================================================================
--- cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp (original)
+++ cfe/trunk/unittests/ASTMatchers/ASTMatchersNarrowingTest.cpp Tue Aug 15 18:49:53 2017
@@ -1108,26 +1108,35 @@ TEST(ConstructorDeclaration, IsExplicit)
}
TEST(ConstructorDeclaration, Kinds) {
- EXPECT_TRUE(matches("struct S { S(); };",
- cxxConstructorDecl(isDefaultConstructor())));
- EXPECT_TRUE(notMatches("struct S { S(); };",
- cxxConstructorDecl(isCopyConstructor())));
- EXPECT_TRUE(notMatches("struct S { S(); };",
- cxxConstructorDecl(isMoveConstructor())));
+ EXPECT_TRUE(matches(
+ "struct S { S(); };",
+ cxxConstructorDecl(isDefaultConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(); };",
+ cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(); };",
+ cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
- EXPECT_TRUE(notMatches("struct S { S(const S&); };",
- cxxConstructorDecl(isDefaultConstructor())));
- EXPECT_TRUE(matches("struct S { S(const S&); };",
- cxxConstructorDecl(isCopyConstructor())));
- EXPECT_TRUE(notMatches("struct S { S(const S&); };",
- cxxConstructorDecl(isMoveConstructor())));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(const S&); };",
+ cxxConstructorDecl(isDefaultConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(matches(
+ "struct S { S(const S&); };",
+ cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(const S&); };",
+ cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
- EXPECT_TRUE(notMatches("struct S { S(S&&); };",
- cxxConstructorDecl(isDefaultConstructor())));
- EXPECT_TRUE(notMatches("struct S { S(S&&); };",
- cxxConstructorDecl(isCopyConstructor())));
- EXPECT_TRUE(matches("struct S { S(S&&); };",
- cxxConstructorDecl(isMoveConstructor())));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(S&&); };",
+ cxxConstructorDecl(isDefaultConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(notMatches(
+ "struct S { S(S&&); };",
+ cxxConstructorDecl(isCopyConstructor(), unless(isImplicit()))));
+ EXPECT_TRUE(matches(
+ "struct S { S(S&&); };",
+ cxxConstructorDecl(isMoveConstructor(), unless(isImplicit()))));
}
TEST(ConstructorDeclaration, IsUserProvided) {
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