Hi rsmith,
The extension has the following syntax:
__builtin_call_with_static_chain(Call, Chain)
where Call must be a function call expression and Chain must be of pointer
type
This extension performs a function call Call with a static chain pointer
Chain passed to the callee in a designated register. This is useful for
calling foreign language functions whose ABI uses static chain pointers
(e.g. to implement closures).
http://reviews.llvm.org/D6332
Files:
include/clang/AST/DataRecursiveASTVisitor.h
include/clang/AST/Expr.h
include/clang/AST/RecursiveASTVisitor.h
include/clang/Basic/DiagnosticSemaKinds.td
include/clang/Basic/StmtNodes.td
include/clang/Basic/TokenKinds.def
include/clang/CodeGen/CGFunctionInfo.h
include/clang/Sema/Sema.h
include/clang/Serialization/ASTBitCodes.h
lib/AST/Expr.cpp
lib/AST/ExprClassification.cpp
lib/AST/ExprConstant.cpp
lib/AST/ItaniumMangle.cpp
lib/AST/StmtPrinter.cpp
lib/AST/StmtProfile.cpp
lib/CodeGen/CGCall.cpp
lib/CodeGen/CGExpr.cpp
lib/CodeGen/CGExprAgg.cpp
lib/CodeGen/CGExprCXX.cpp
lib/CodeGen/CGExprComplex.cpp
lib/CodeGen/CGExprScalar.cpp
lib/CodeGen/CGObjCMac.cpp
lib/CodeGen/CodeGenABITypes.cpp
lib/CodeGen/CodeGenFunction.h
lib/CodeGen/CodeGenTypes.h
lib/CodeGen/TargetInfo.cpp
lib/Parse/ParseExpr.cpp
lib/Sema/SemaExceptionSpec.cpp
lib/Sema/SemaExpr.cpp
lib/Sema/TreeTransform.h
lib/Serialization/ASTReaderStmt.cpp
lib/Serialization/ASTWriterStmt.cpp
lib/StaticAnalyzer/Core/ExprEngine.cpp
test/CodeGenCXX/cwsc.cpp
test/Sema/cwsc.c
test/SemaCXX/cwsc.cpp
tools/libclang/CXCursor.cpp
Index: include/clang/AST/DataRecursiveASTVisitor.h
===================================================================
--- include/clang/AST/DataRecursiveASTVisitor.h
+++ include/clang/AST/DataRecursiveASTVisitor.h
@@ -2273,6 +2273,7 @@
DEF_TRAVERSE_STMT(MaterializeTemporaryExpr, {})
DEF_TRAVERSE_STMT(CXXFoldExpr, {})
DEF_TRAVERSE_STMT(AtomicExpr, {})
+DEF_TRAVERSE_STMT(CallWithStaticChainExpr, {})
// These literals (all of them) do not need any action.
DEF_TRAVERSE_STMT(IntegerLiteral, {})
Index: include/clang/AST/Expr.h
===================================================================
--- include/clang/AST/Expr.h
+++ include/clang/AST/Expr.h
@@ -4864,6 +4864,50 @@
SourceLocation getLocStart() const LLVM_READONLY { return SourceLocation(); }
SourceLocation getLocEnd() const LLVM_READONLY { return SourceLocation(); }
};
+
+/// \brief Represents the __builtin_call_with_static_chain expression.
+class CallWithStaticChainExpr : public Expr {
+ enum { CALL, CHAIN, END_EXPR };
+ Stmt *SubExprs[END_EXPR];
+ SourceLocation BuiltinLoc, RParenLoc;
+
+ friend class ASTStmtReader;
+
+public:
+ CallWithStaticChainExpr(CallExpr *Call, Expr *Chain,
+ SourceLocation BuiltinLoc, SourceLocation RParenLoc)
+ : Expr(CallWithStaticChainExprClass, Call->getType(),
+ Call->getValueKind(), OK_Ordinary, Call->isTypeDependent(),
+ Call->isValueDependent(), Call->isInstantiationDependent() ||
+ Chain->isInstantiationDependent(),
+ Call->containsUnexpandedParameterPack() ||
+ Chain->containsUnexpandedParameterPack()),
+ BuiltinLoc(BuiltinLoc), RParenLoc(RParenLoc) {
+ SubExprs[CALL] = Call;
+ SubExprs[CHAIN] = Chain;
+ }
+
+ explicit CallWithStaticChainExpr(EmptyShell Empty)
+ : Expr(CallWithStaticChainExprClass, Empty) {}
+
+ CallExpr *getCallExpr() const { return cast<CallExpr>(SubExprs[CALL]); }
+ Expr *getChainExpr() const { return cast<Expr>(SubExprs[CHAIN]); }
+
+ SourceLocation getBuiltinLoc() const { return BuiltinLoc; }
+ SourceLocation getRParenLoc() const { return RParenLoc; }
+
+ SourceLocation getLocStart() const LLVM_READONLY { return BuiltinLoc; }
+ SourceLocation getLocEnd() const LLVM_READONLY { return RParenLoc; }
+
+ static bool classof(const Stmt *T) {
+ return T->getStmtClass() == CallWithStaticChainExprClass;
+ }
+
+ child_range children() {
+ return child_range(SubExprs, SubExprs+END_EXPR);
+ }
+};
+
} // end namespace clang
#endif
Index: include/clang/AST/RecursiveASTVisitor.h
===================================================================
--- include/clang/AST/RecursiveASTVisitor.h
+++ include/clang/AST/RecursiveASTVisitor.h
@@ -2295,6 +2295,7 @@
DEF_TRAVERSE_STMT(MaterializeTemporaryExpr, {})
DEF_TRAVERSE_STMT(CXXFoldExpr, {})
DEF_TRAVERSE_STMT(AtomicExpr, {})
+DEF_TRAVERSE_STMT(CallWithStaticChainExpr, {})
// These literals (all of them) do not need any action.
DEF_TRAVERSE_STMT(IntegerLiteral, {})
Index: include/clang/Basic/DiagnosticSemaKinds.td
===================================================================
--- include/clang/Basic/DiagnosticSemaKinds.td
+++ include/clang/Basic/DiagnosticSemaKinds.td
@@ -6891,6 +6891,17 @@
def err_convertvector_incompatible_vector : Error<
"first two arguments to __builtin_convertvector must have the same number of elements">;
+def err_first_argument_to_cwsc_not_call : Error<
+ "first argument to __builtin_call_with_static_chain must be a non-member call expression">;
+def err_first_argument_to_cwsc_block_call : Error<
+ "first argument to __builtin_call_with_static_chain must not be a block call">;
+def err_first_argument_to_cwsc_builtin_call : Error<
+ "first argument to __builtin_call_with_static_chain must not be a builtin call">;
+def err_first_argument_to_cwsc_pdtor_call : Error<
+ "first argument to __builtin_call_with_static_chain must not be a pseudo-destructor call">;
+def err_second_argument_to_cwsc_not_pointer : Error<
+ "second argument to __builtin_call_with_static_chain must be of pointer type">;
+
def err_vector_incorrect_num_initializers : Error<
"%select{too many|too few}0 elements in vector initialization (expected %1 elements, have %2)">;
def err_altivec_empty_initializer : Error<"expected initializer">;
Index: include/clang/Basic/StmtNodes.td
===================================================================
--- include/clang/Basic/StmtNodes.td
+++ include/clang/Basic/StmtNodes.td
@@ -91,6 +91,7 @@
def StmtExpr : DStmt<Expr>;
def ChooseExpr : DStmt<Expr>;
def GNUNullExpr : DStmt<Expr>;
+def CallWithStaticChainExpr : DStmt<Expr>;
// C++ Expressions.
def CXXOperatorCallExpr : DStmt<CallExpr>;
Index: include/clang/Basic/TokenKinds.def
===================================================================
--- include/clang/Basic/TokenKinds.def
+++ include/clang/Basic/TokenKinds.def
@@ -363,6 +363,7 @@
KEYWORD(__thread , KEYALL)
KEYWORD(__FUNCTION__ , KEYALL)
KEYWORD(__PRETTY_FUNCTION__ , KEYALL)
+KEYWORD(__builtin_call_with_static_chain, KEYALL)
// GNU Extensions (outside impl-reserved namespace)
KEYWORD(typeof , KEYGNU)
Index: include/clang/CodeGen/CGFunctionInfo.h
===================================================================
--- include/clang/CodeGen/CGFunctionInfo.h
+++ include/clang/CodeGen/CGFunctionInfo.h
@@ -352,15 +352,18 @@
/// Whether this is an instance method.
unsigned InstanceMethod : 1;
+ /// Whether this is a chain call.
+ unsigned ChainCall : 1;
+
/// Whether this function is noreturn.
unsigned NoReturn : 1;
/// Whether this function is returns-retained.
unsigned ReturnsRetained : 1;
/// How many arguments to pass inreg.
unsigned HasRegParm : 1;
- unsigned RegParm : 4;
+ unsigned RegParm : 3;
RequiredArgs Required;
@@ -381,6 +384,7 @@
public:
static CGFunctionInfo *create(unsigned llvmCC,
bool InstanceMethod,
+ bool ChainCall,
const FunctionType::ExtInfo &extInfo,
CanQualType resultType,
ArrayRef<CanQualType> argTypes,
@@ -412,6 +416,8 @@
bool isInstanceMethod() const { return InstanceMethod; }
+ bool isChainCall() const { return ChainCall; }
+
bool isNoReturn() const { return NoReturn; }
/// In ARC, whether this function retains its return value. This
@@ -462,6 +468,7 @@
void Profile(llvm::FoldingSetNodeID &ID) {
ID.AddInteger(getASTCallingConvention());
ID.AddBoolean(InstanceMethod);
+ ID.AddBoolean(ChainCall);
ID.AddBoolean(NoReturn);
ID.AddBoolean(ReturnsRetained);
ID.AddBoolean(HasRegParm);
@@ -473,12 +480,14 @@
}
static void Profile(llvm::FoldingSetNodeID &ID,
bool InstanceMethod,
+ bool ChainCall,
const FunctionType::ExtInfo &info,
RequiredArgs required,
CanQualType resultType,
ArrayRef<CanQualType> argTypes) {
ID.AddInteger(info.getCC());
ID.AddBoolean(InstanceMethod);
+ ID.AddBoolean(ChainCall);
ID.AddBoolean(info.getNoReturn());
ID.AddBoolean(info.getProducesResult());
ID.AddBoolean(info.getHasRegParm());
Index: include/clang/Sema/Sema.h
===================================================================
--- include/clang/Sema/Sema.h
+++ include/clang/Sema/Sema.h
@@ -3795,6 +3795,10 @@
// __null
ExprResult ActOnGNUNullExpr(SourceLocation TokenLoc);
+ // __builtin_call_with_static_chain(call, chain)
+ ExprResult ActOnCallWithStaticChain(SourceLocation BuiltinLoc, Expr *Call,
+ Expr *Chain, SourceLocation RPLoc);
+
bool CheckCaseExpression(Expr *E);
/// \brief Describes the result of an "if-exists" condition check.
Index: include/clang/Serialization/ASTBitCodes.h
===================================================================
--- include/clang/Serialization/ASTBitCodes.h
+++ include/clang/Serialization/ASTBitCodes.h
@@ -1214,6 +1214,8 @@
EXPR_PSEUDO_OBJECT,
/// \brief An AtomicExpr record.
EXPR_ATOMIC,
+ /// \brief A CallWithStaticChainExpr record.
+ EXPR_CALL_WITH_STATIC_CHAIN,
// Objective-C
Index: lib/AST/Expr.cpp
===================================================================
--- lib/AST/Expr.cpp
+++ lib/AST/Expr.cpp
@@ -2936,6 +2936,7 @@
case CXXBindTemporaryExprClass:
case BlockExprClass:
case CUDAKernelCallExprClass:
+ case CallWithStaticChainExprClass:
// These always have a side-effect.
return true;
Index: lib/AST/ExprClassification.cpp
===================================================================
--- lib/AST/ExprClassification.cpp
+++ lib/AST/ExprClassification.cpp
@@ -394,6 +394,10 @@
assert(cast<InitListExpr>(E)->getNumInits() == 1 &&
"Only 1-element init lists can be glvalues.");
return ClassifyInternal(Ctx, cast<InitListExpr>(E)->getInit(0));
+
+ case Expr::CallWithStaticChainExprClass:
+ return ClassifyInternal(Ctx,
+ cast<CallWithStaticChainExpr>(E)->getCallExpr());
}
llvm_unreachable("unhandled expression kind in classification");
Index: lib/AST/ExprConstant.cpp
===================================================================
--- lib/AST/ExprConstant.cpp
+++ lib/AST/ExprConstant.cpp
@@ -8689,6 +8689,7 @@
case Expr::AtomicExprClass:
case Expr::LambdaExprClass:
case Expr::CXXFoldExprClass:
+ case Expr::CallWithStaticChainExprClass:
return ICEDiag(IK_NotICE, E->getLocStart());
case Expr::InitListExprClass: {
Index: lib/AST/ItaniumMangle.cpp
===================================================================
--- lib/AST/ItaniumMangle.cpp
+++ lib/AST/ItaniumMangle.cpp
@@ -2675,6 +2675,7 @@
case Expr::AsTypeExprClass:
case Expr::PseudoObjectExprClass:
case Expr::AtomicExprClass:
+ case Expr::CallWithStaticChainExprClass:
{
// As bad as this diagnostic is, it's better than crashing.
DiagnosticsEngine &Diags = Context.getDiags();
Index: lib/AST/StmtPrinter.cpp
===================================================================
--- lib/AST/StmtPrinter.cpp
+++ lib/AST/StmtPrinter.cpp
@@ -1367,6 +1367,14 @@
OS << ")";
}
+void StmtPrinter::VisitCallWithStaticChainExpr(CallWithStaticChainExpr *Node) {
+ OS << "__builtin_call_with_static_chain(";
+ PrintExpr(Node->getCallExpr());
+ OS << ", ";
+ PrintExpr(Node->getChainExpr());
+ OS << ")";
+}
+
void StmtPrinter::VisitInitListExpr(InitListExpr* Node) {
if (Node->getSyntacticForm()) {
Visit(Node->getSyntacticForm());
Index: lib/AST/StmtProfile.cpp
===================================================================
--- lib/AST/StmtProfile.cpp
+++ lib/AST/StmtProfile.cpp
@@ -649,6 +649,11 @@
VisitExpr(S);
}
+void
+StmtProfiler::VisitCallWithStaticChainExpr(const CallWithStaticChainExpr *S) {
+ VisitExpr(S);
+}
+
void StmtProfiler::VisitChooseExpr(const ChooseExpr *S) {
VisitExpr(S);
}
Index: lib/CodeGen/CGCall.cpp
===================================================================
--- lib/CodeGen/CGCall.cpp
+++ lib/CodeGen/CGCall.cpp
@@ -83,7 +83,7 @@
// When translating an unprototyped function type, always use a
// variadic type.
return arrangeLLVMFunctionInfo(FTNP->getReturnType().getUnqualifiedType(),
- false, None, FTNP->getExtInfo(),
+ false, false, None, FTNP->getExtInfo(),
RequiredArgs(0));
}
@@ -98,8 +98,8 @@
for (unsigned i = 0, e = FTP->getNumParams(); i != e; ++i)
prefix.push_back(FTP->getParamType(i));
CanQualType resultType = FTP->getReturnType().getUnqualifiedType();
- return CGT.arrangeLLVMFunctionInfo(resultType, IsInstanceMethod, prefix,
- FTP->getExtInfo(), required);
+ return CGT.arrangeLLVMFunctionInfo(resultType, IsInstanceMethod, false,
+ prefix, FTP->getExtInfo(), required);
}
/// Arrange the argument and result information for a value of the
@@ -219,7 +219,8 @@
: TheCXXABI.hasMostDerivedReturn(GD)
? CGM.getContext().VoidPtrTy
: Context.VoidTy;
- return arrangeLLVMFunctionInfo(resultType, true, argTypes, extInfo, required);
+ return arrangeLLVMFunctionInfo(resultType, true, false, argTypes, extInfo,
+ required);
}
/// Arrange a call to a C++ method, passing the given arguments.
@@ -243,7 +244,8 @@
: Context.VoidTy;
FunctionType::ExtInfo Info = FPT->getExtInfo();
- return arrangeLLVMFunctionInfo(ResultType, true, ArgTypes, Info, Required);
+ return arrangeLLVMFunctionInfo(ResultType, true, false, ArgTypes, Info,
+ Required);
}
/// Arrange the argument and result information for the declaration or
@@ -262,7 +264,7 @@
// non-variadic type.
if (isa<FunctionNoProtoType>(FTy)) {
CanQual<FunctionNoProtoType> noProto = FTy.getAs<FunctionNoProtoType>();
- return arrangeLLVMFunctionInfo(noProto->getReturnType(), false, None,
+ return arrangeLLVMFunctionInfo(noProto->getReturnType(), false, false, None,
noProto->getExtInfo(), RequiredArgs::All);
}
@@ -308,7 +310,7 @@
(MD->isVariadic() ? RequiredArgs(argTys.size()) : RequiredArgs::All);
return arrangeLLVMFunctionInfo(GetReturnType(MD->getReturnType()), false,
- argTys, einfo, required);
+ false, argTys, einfo, required);
}
const CGFunctionInfo &
@@ -335,7 +337,7 @@
assert(MD->isVirtual() && "only virtual memptrs have thunks");
CanQual<FunctionProtoType> FTP = GetFormalType(MD);
CanQualType ArgTys[] = { GetThisType(Context, MD->getParent()) };
- return arrangeLLVMFunctionInfo(Context.VoidTy, false, ArgTys,
+ return arrangeLLVMFunctionInfo(Context.VoidTy, false, false, ArgTys,
FTP->getExtInfo(), RequiredArgs(1));
}
@@ -346,7 +348,8 @@
CodeGenModule &CGM,
const CallArgList &args,
const FunctionType *fnType,
- unsigned numExtraRequiredArgs) {
+ unsigned numExtraRequiredArgs,
+ bool chainCall) {
assert(args.size() >= numExtraRequiredArgs);
// In most cases, there are no optional arguments.
@@ -368,7 +371,12 @@
required = RequiredArgs(args.size());
}
- return CGT.arrangeFreeFunctionCall(fnType->getReturnType(), args,
+ // FIXME: Kill copy.
+ SmallVector<CanQualType, 16> argTypes;
+ for (const auto &Arg : args)
+ argTypes.push_back(CGT.getContext().getCanonicalParamType(Arg.Ty));
+ return CGT.arrangeLLVMFunctionInfo(GetReturnType(fnType->getReturnType()),
+ false, chainCall, argTypes,
fnType->getExtInfo(), required);
}
@@ -378,16 +386,19 @@
/// target-dependent in crazy ways.
const CGFunctionInfo &
CodeGenTypes::arrangeFreeFunctionCall(const CallArgList &args,
- const FunctionType *fnType) {
- return arrangeFreeFunctionLikeCall(*this, CGM, args, fnType, 0);
+ const FunctionType *fnType,
+ bool chainCall) {
+ return arrangeFreeFunctionLikeCall(*this, CGM, args, fnType,
+ chainCall ? 1 : 0, chainCall);
}
/// A block function call is essentially a free-function call with an
/// extra implicit argument.
const CGFunctionInfo &
CodeGenTypes::arrangeBlockFunctionCall(const CallArgList &args,
const FunctionType *fnType) {
- return arrangeFreeFunctionLikeCall(*this, CGM, args, fnType, 1);
+ return arrangeFreeFunctionLikeCall(*this, CGM, args, fnType, 1,
+ /*chainCall=*/false);
}
const CGFunctionInfo &
@@ -399,8 +410,8 @@
SmallVector<CanQualType, 16> argTypes;
for (const auto &Arg : args)
argTypes.push_back(Context.getCanonicalParamType(Arg.Ty));
- return arrangeLLVMFunctionInfo(GetReturnType(resultType), false, argTypes,
- info, required);
+ return arrangeLLVMFunctionInfo(GetReturnType(resultType), false, false,
+ argTypes, info, required);
}
/// Arrange a call to a C++ method, passing the given arguments.
@@ -415,7 +426,7 @@
FunctionType::ExtInfo info = FPT->getExtInfo();
return arrangeLLVMFunctionInfo(GetReturnType(FPT->getReturnType()), true,
- argTypes, info, required);
+ false, argTypes, info, required);
}
const CGFunctionInfo &CodeGenTypes::arrangeFreeFunctionDeclaration(
@@ -428,12 +439,12 @@
RequiredArgs required =
(isVariadic ? RequiredArgs(args.size()) : RequiredArgs::All);
- return arrangeLLVMFunctionInfo(GetReturnType(resultType), false, argTypes, info,
- required);
+ return arrangeLLVMFunctionInfo(GetReturnType(resultType), false, false,
+ argTypes, info, required);
}
const CGFunctionInfo &CodeGenTypes::arrangeNullaryFunction() {
- return arrangeLLVMFunctionInfo(getContext().VoidTy, false, None,
+ return arrangeLLVMFunctionInfo(getContext().VoidTy, false, false, None,
FunctionType::ExtInfo(), RequiredArgs::All);
}
@@ -443,6 +454,7 @@
const CGFunctionInfo &
CodeGenTypes::arrangeLLVMFunctionInfo(CanQualType resultType,
bool IsInstanceMethod,
+ bool IsChainCall,
ArrayRef<CanQualType> argTypes,
FunctionType::ExtInfo info,
RequiredArgs required) {
@@ -456,17 +468,17 @@
// Lookup or create unique function info.
llvm::FoldingSetNodeID ID;
- CGFunctionInfo::Profile(ID, IsInstanceMethod, info, required, resultType,
- argTypes);
+ CGFunctionInfo::Profile(ID, IsInstanceMethod, IsChainCall, info, required,
+ resultType, argTypes);
void *insertPos = nullptr;
CGFunctionInfo *FI = FunctionInfos.FindNodeOrInsertPos(ID, insertPos);
if (FI)
return *FI;
// Construct the function info. We co-allocate the ArgInfos.
- FI = CGFunctionInfo::create(CC, IsInstanceMethod, info, resultType, argTypes,
- required);
+ FI = CGFunctionInfo::create(CC, IsInstanceMethod, IsChainCall, info,
+ resultType, argTypes, required);
FunctionInfos.InsertNode(FI, insertPos);
bool inserted = FunctionsBeingProcessed.insert(FI).second;
@@ -495,6 +507,7 @@
CGFunctionInfo *CGFunctionInfo::create(unsigned llvmCC,
bool IsInstanceMethod,
+ bool IsChainCall,
const FunctionType::ExtInfo &info,
CanQualType resultType,
ArrayRef<CanQualType> argTypes,
@@ -506,6 +519,7 @@
FI->EffectiveCallingConvention = llvmCC;
FI->ASTCallingConvention = info.getCC();
FI->InstanceMethod = IsInstanceMethod;
+ FI->ChainCall = IsChainCall;
FI->NoReturn = info.getNoReturn();
FI->ReturnsRetained = info.getProducesResult();
FI->Required = required;
@@ -1493,7 +1507,6 @@
getLLVMContext(), IRFunctionArgs.getInallocaArgNo() + 1, Attrs));
}
-
unsigned ArgNo = 0;
for (CGFunctionInfo::const_arg_iterator I = FI.arg_begin(),
E = FI.arg_end();
@@ -1521,7 +1534,9 @@
Attrs.addAttribute(llvm::Attribute::ZExt);
// FALL THROUGH
case ABIArgInfo::Direct:
- if (AI.getInReg())
+ if (ArgNo == 0 && FI.isChainCall())
+ Attrs.addAttribute(llvm::Attribute::Nest);
+ else if (AI.getInReg())
Attrs.addAttribute(llvm::Attribute::InReg);
break;
Index: lib/CodeGen/CGExpr.cpp
===================================================================
--- lib/CodeGen/CGExpr.cpp
+++ lib/CodeGen/CGExpr.cpp
@@ -828,6 +828,8 @@
case Expr::CXXOperatorCallExprClass:
case Expr::UserDefinedLiteralClass:
return EmitCallExprLValue(cast<CallExpr>(E));
+ case Expr::CallWithStaticChainExprClass:
+ return EmitCallWithStaticChainExprLValue(cast<CallWithStaticChainExpr>(E));
case Expr::VAArgExprClass:
return EmitVAArgExprLValue(cast<VAArgExpr>(E));
case Expr::DeclRefExprClass:
@@ -3098,6 +3100,16 @@
TargetDecl);
}
+RValue
+CodeGenFunction::EmitCallWithStaticChainExpr(const CallWithStaticChainExpr *E,
+ ReturnValueSlot ReturnValue) {
+ CallExpr *Call = E->getCallExpr();
+ return EmitCall(Call->getCallee()->getType(),
+ EmitScalarExpr(Call->getCallee()), Call, ReturnValue,
+ Call->getCalleeDecl(),
+ EmitScalarExpr(E->getChainExpr()));
+}
+
LValue CodeGenFunction::EmitBinaryOperatorLValue(const BinaryOperator *E) {
// Comma expressions just emit their LHS then their RHS as an l-value.
if (E->getOpcode() == BO_Comma) {
@@ -3159,6 +3171,20 @@
return MakeAddrLValue(RV.getScalarVal(), E->getType());
}
+LValue CodeGenFunction::EmitCallWithStaticChainExprLValue(
+ const CallWithStaticChainExpr *E) {
+ RValue RV = EmitCallWithStaticChainExpr(E);
+
+ if (!RV.isScalar())
+ return MakeAddrLValue(RV.getAggregateAddr(), E->getType());
+
+ assert(E->getCallExpr()->getCallReturnType()->isReferenceType() &&
+ "Can't have a scalar return unless the return type is a "
+ "reference type!");
+
+ return MakeAddrLValue(RV.getScalarVal(), E->getType());
+}
+
LValue CodeGenFunction::EmitVAArgExprLValue(const VAArgExpr *E) {
// FIXME: This shouldn't require another copy.
return EmitAggExprToLValue(E);
@@ -3267,7 +3293,7 @@
RValue CodeGenFunction::EmitCall(QualType CalleeType, llvm::Value *Callee,
const CallExpr *E, ReturnValueSlot ReturnValue,
- const Decl *TargetDecl) {
+ const Decl *TargetDecl, llvm::Value *Chain) {
// Get the actual function type. The callee type will always be a pointer to
// function type or a block pointer type.
assert(CalleeType->isFunctionPointerType() &&
@@ -3332,12 +3358,15 @@
}
CallArgList Args;
+ if (Chain)
+ Args.add(RValue::get(Builder.CreateBitCast(Chain, CGM.VoidPtrTy)),
+ CGM.getContext().VoidPtrTy);
EmitCallArgs(Args, dyn_cast<FunctionProtoType>(FnType), E->arg_begin(),
E->arg_end(), E->getDirectCallee(), /*ParamsToSkip*/ 0,
ForceColumnInfo);
- const CGFunctionInfo &FnInfo =
- CGM.getTypes().arrangeFreeFunctionCall(Args, FnType);
+ const CGFunctionInfo &FnInfo = CGM.getTypes().arrangeFreeFunctionCall(
+ Args, FnType, /*isChainCall=*/Chain);
// C99 6.5.2.2p6:
// If the expression that denotes the called function has a type
@@ -3356,7 +3385,10 @@
// through an unprototyped function type works like a *non-variadic*
// call. The way we make this work is to cast to the exact type
// of the promoted arguments.
- if (isa<FunctionNoProtoType>(FnType)) {
+ //
+ // Chain calls use this same code path to add the invisible chain parameter
+ // to the function type.
+ if (isa<FunctionNoProtoType>(FnType) || Chain) {
llvm::Type *CalleeTy = getTypes().GetFunctionType(FnInfo);
CalleeTy = CalleeTy->getPointerTo();
Callee = Builder.CreateBitCast(Callee, CalleeTy, "callee.knr.cast");
Index: lib/CodeGen/CGExprAgg.cpp
===================================================================
--- lib/CodeGen/CGExprAgg.cpp
+++ lib/CodeGen/CGExprAgg.cpp
@@ -143,6 +143,7 @@
// Operators.
void VisitCastExpr(CastExpr *E);
void VisitCallExpr(const CallExpr *E);
+ void VisitCallWithStaticChainExpr(const CallWithStaticChainExpr *E);
void VisitStmtExpr(const StmtExpr *E);
void VisitBinaryOperator(const BinaryOperator *BO);
void VisitPointerToDataMemberBinaryOperator(const BinaryOperator *BO);
@@ -745,6 +746,17 @@
EmitMoveFromReturnSlot(E, RV);
}
+void
+AggExprEmitter::VisitCallWithStaticChainExpr(const CallWithStaticChainExpr *E) {
+ if (E->getCallExpr()->getCallReturnType()->isReferenceType()) {
+ EmitAggLoadOfLValue(E);
+ return;
+ }
+
+ RValue RV = CGF.EmitCallWithStaticChainExpr(E, getReturnValueSlot());
+ EmitMoveFromReturnSlot(E, RV);
+}
+
void AggExprEmitter::VisitObjCMessageExpr(ObjCMessageExpr *E) {
RValue RV = CGF.EmitObjCMessageExpr(E, getReturnValueSlot());
EmitMoveFromReturnSlot(E, RV);
Index: lib/CodeGen/CGExprCXX.cpp
===================================================================
--- lib/CodeGen/CGExprCXX.cpp
+++ lib/CodeGen/CGExprCXX.cpp
@@ -1028,9 +1028,9 @@
llvm::Instruction *CallOrInvoke;
llvm::Value *CalleeAddr = CGF.CGM.GetAddrOfFunction(Callee);
RValue RV =
- CGF.EmitCall(CGF.CGM.getTypes().arrangeFreeFunctionCall(Args, CalleeType),
- CalleeAddr, ReturnValueSlot(), Args,
- Callee, &CallOrInvoke);
+ CGF.EmitCall(CGF.CGM.getTypes().arrangeFreeFunctionCall(
+ Args, CalleeType, /*chainCall=*/false),
+ CalleeAddr, ReturnValueSlot(), Args, Callee, &CallOrInvoke);
/// C++1y [expr.new]p10:
/// [In a new-expression,] an implementation is allowed to omit a call
Index: lib/CodeGen/CGExprComplex.cpp
===================================================================
--- lib/CodeGen/CGExprComplex.cpp
+++ lib/CodeGen/CGExprComplex.cpp
@@ -156,6 +156,7 @@
return EmitCast(E->getCastKind(), E->getSubExpr(), E->getType());
}
ComplexPairTy VisitCallExpr(const CallExpr *E);
+ ComplexPairTy VisitCallWithStaticChainExpr(const CallWithStaticChainExpr *E);
ComplexPairTy VisitStmtExpr(const StmtExpr *E);
// Operators.
@@ -382,6 +383,14 @@
return CGF.EmitCallExpr(E).getComplexVal();
}
+ComplexPairTy ComplexExprEmitter::VisitCallWithStaticChainExpr(
+ const CallWithStaticChainExpr *E) {
+ if (E->getCallExpr()->getCallReturnType()->isReferenceType())
+ return EmitLoadOfLValue(E);
+
+ return CGF.EmitCallWithStaticChainExpr(E).getComplexVal();
+}
+
ComplexPairTy ComplexExprEmitter::VisitStmtExpr(const StmtExpr *E) {
CodeGenFunction::StmtExprEvaluation eval(CGF);
llvm::Value *RetAlloca = CGF.EmitCompoundStmt(*E->getSubStmt(), true);
Index: lib/CodeGen/CGExprScalar.cpp
===================================================================
--- lib/CodeGen/CGExprScalar.cpp
+++ lib/CodeGen/CGExprScalar.cpp
@@ -328,6 +328,13 @@
return V;
}
+ Value *VisitCallWithStaticChainExpr(const CallWithStaticChainExpr *E) {
+ if (E->getCallExpr()->getCallReturnType()->isReferenceType())
+ return EmitLoadOfLValue(E);
+
+ return CGF.EmitCallWithStaticChainExpr(E).getScalarVal();
+ }
+
Value *VisitStmtExpr(const StmtExpr *E);
// Unary Operators.
Index: lib/CodeGen/CGObjCMac.cpp
===================================================================
--- lib/CodeGen/CGObjCMac.cpp
+++ lib/CodeGen/CGObjCMac.cpp
@@ -244,9 +244,9 @@
Params.push_back(Ctx.getPointerDiffType()->getCanonicalTypeUnqualified());
Params.push_back(Ctx.BoolTy);
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(IdType, false, Params,
- FunctionType::ExtInfo(),
- RequiredArgs::All));
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(
+ IdType, false, false, Params, FunctionType::ExtInfo(),
+ RequiredArgs::All));
return CGM.CreateRuntimeFunction(FTy, "objc_getProperty");
}
@@ -264,10 +264,9 @@
Params.push_back(Ctx.BoolTy);
Params.push_back(Ctx.BoolTy);
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false,
- Params,
- FunctionType::ExtInfo(),
- RequiredArgs::All));
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(
+ Ctx.VoidTy, false, false, Params, FunctionType::ExtInfo(),
+ RequiredArgs::All));
return CGM.CreateRuntimeFunction(FTy, "objc_setProperty");
}
@@ -291,10 +290,9 @@
Params.push_back(IdType);
Params.push_back(Ctx.getPointerDiffType()->getCanonicalTypeUnqualified());
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false,
- Params,
- FunctionType::ExtInfo(),
- RequiredArgs::All));
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(
+ Ctx.VoidTy, false, false, Params, FunctionType::ExtInfo(),
+ RequiredArgs::All));
const char *name;
if (atomic && copy)
name = "objc_setProperty_atomic_copy";
@@ -319,10 +317,9 @@
Params.push_back(Ctx.BoolTy);
Params.push_back(Ctx.BoolTy);
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false,
- Params,
- FunctionType::ExtInfo(),
- RequiredArgs::All));
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(
+ Ctx.VoidTy, false, false, Params, FunctionType::ExtInfo(),
+ RequiredArgs::All));
return CGM.CreateRuntimeFunction(FTy, "objc_copyStruct");
}
@@ -339,7 +336,7 @@
Params.push_back(Ctx.VoidPtrTy);
Params.push_back(Ctx.VoidPtrTy);
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false,
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false, false,
Params,
FunctionType::ExtInfo(),
RequiredArgs::All));
@@ -353,10 +350,9 @@
SmallVector<CanQualType,1> Params;
Params.push_back(Ctx.getCanonicalParamType(Ctx.getObjCIdType()));
llvm::FunctionType *FTy =
- Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(Ctx.VoidTy, false,
- Params,
- FunctionType::ExtInfo(),
- RequiredArgs::All));
+ Types.GetFunctionType(Types.arrangeLLVMFunctionInfo(
+ Ctx.VoidTy, false, false, Params, FunctionType::ExtInfo(),
+ RequiredArgs::All));
return CGM.CreateRuntimeFunction(FTy, "objc_enumerationMutation");
}
Index: lib/CodeGen/CodeGenABITypes.cpp
===================================================================
--- lib/CodeGen/CodeGenABITypes.cpp
+++ lib/CodeGen/CodeGenABITypes.cpp
@@ -67,5 +67,6 @@
FunctionType::ExtInfo info,
RequiredArgs args) {
return CGM->getTypes().arrangeLLVMFunctionInfo(
- returnType, /*IsInstanceMethod=*/false, argTypes, info, args);
+ returnType, /*IsInstanceMethod=*/false, /*IsChainCall=*/false, argTypes,
+ info, args);
}
Index: lib/CodeGen/CodeGenFunction.h
===================================================================
--- lib/CodeGen/CodeGenFunction.h
+++ lib/CodeGen/CodeGenFunction.h
@@ -2174,6 +2174,7 @@
LValue EmitCompoundAssignmentLValue(const CompoundAssignOperator *E);
// Note: only available for agg return types
LValue EmitCallExprLValue(const CallExpr *E);
+ LValue EmitCallWithStaticChainExprLValue(const CallWithStaticChainExpr *E);
// Note: only available for agg return types
LValue EmitVAArgExprLValue(const VAArgExpr *E);
LValue EmitDeclRefLValue(const DeclRefExpr *E);
@@ -2281,9 +2282,13 @@
RValue EmitCall(QualType FnType, llvm::Value *Callee, const CallExpr *E,
ReturnValueSlot ReturnValue,
- const Decl *TargetDecl = nullptr);
+ const Decl *TargetDecl = nullptr,
+ llvm::Value *Chain = nullptr);
RValue EmitCallExpr(const CallExpr *E,
ReturnValueSlot ReturnValue = ReturnValueSlot());
+ RValue
+ EmitCallWithStaticChainExpr(const CallWithStaticChainExpr *E,
+ ReturnValueSlot ReturnValue = ReturnValueSlot());
llvm::CallInst *EmitRuntimeCall(llvm::Value *callee,
const Twine &name = "");
Index: lib/CodeGen/CodeGenTypes.h
===================================================================
--- lib/CodeGen/CodeGenTypes.h
+++ lib/CodeGen/CodeGenTypes.h
@@ -248,7 +248,8 @@
CXXCtorType CtorKind,
unsigned ExtraArgs);
const CGFunctionInfo &arrangeFreeFunctionCall(const CallArgList &Args,
- const FunctionType *Ty);
+ const FunctionType *Ty,
+ bool ChainCall);
const CGFunctionInfo &arrangeFreeFunctionCall(QualType ResTy,
const CallArgList &args,
FunctionType::ExtInfo info,
@@ -274,6 +275,7 @@
/// \param argTypes - must all actually be canonical as params
const CGFunctionInfo &arrangeLLVMFunctionInfo(CanQualType returnType,
bool IsInstanceMethod,
+ bool IsChainCall,
ArrayRef<CanQualType> argTypes,
FunctionType::ExtInfo info,
RequiredArgs args);
Index: lib/CodeGen/TargetInfo.cpp
===================================================================
--- lib/CodeGen/TargetInfo.cpp
+++ lib/CodeGen/TargetInfo.cpp
@@ -1145,6 +1145,10 @@
}
}
+ // The chain argument effectively gives us another free register.
+ if (FI.isChainCall())
+ ++State.FreeRegs;
+
bool UsedInAlloca = false;
for (auto &I : FI.arguments()) {
I.info = classifyArgumentType(I.type, State);
@@ -2695,6 +2699,10 @@
if (FI.getReturnInfo().isIndirect())
--freeIntRegs;
+ // The chain argument effectively gives us another free register.
+ if (FI.isChainCall())
+ ++freeIntRegs;
+
unsigned NumRequiredArgs = FI.getNumRequiredArgs();
// AMD64-ABI 3.2.3p3: Once arguments are classified, the registers
// get assigned (in left-to-right order) for passing as follows...
Index: lib/Parse/ParseExpr.cpp
===================================================================
--- lib/Parse/ParseExpr.cpp
+++ lib/Parse/ParseExpr.cpp
@@ -940,6 +940,7 @@
case tok::kw___builtin_choose_expr:
case tok::kw___builtin_astype: // primary-expression: [OCL] as_type()
case tok::kw___builtin_convertvector:
+ case tok::kw___builtin_call_with_static_chain:
return ParseBuiltinPrimaryExpression();
case tok::kw___null:
return Actions.ActOnGNUNullExpr(ConsumeToken());
@@ -1981,6 +1982,34 @@
ConsumeParen());
break;
}
+ case tok::kw___builtin_call_with_static_chain: {
+ ExprResult Call(ParseAssignmentExpression());
+ if (Call.isInvalid()) {
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return ExprError();
+ }
+
+ if (ExpectAndConsume(tok::comma)) {
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return ExprError();
+ }
+
+ ExprResult Chain(ParseAssignmentExpression());
+ if (Chain.isInvalid()) {
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return ExprError();
+ }
+
+ if (Tok.isNot(tok::r_paren)) {
+ Diag(Tok, diag::err_expected) << tok::r_paren;
+ SkipUntil(tok::r_paren, StopAtSemi);
+ return ExprError();
+ }
+
+ Res = Actions.ActOnCallWithStaticChain(StartLoc, Call.get(), Chain.get(),
+ ConsumeParen());
+ break;
+ }
}
if (Res.isInvalid())
Index: lib/Sema/SemaExceptionSpec.cpp
===================================================================
--- lib/Sema/SemaExceptionSpec.cpp
+++ lib/Sema/SemaExceptionSpec.cpp
@@ -1045,6 +1045,7 @@
case Expr::ShuffleVectorExprClass:
case Expr::ConvertVectorExprClass:
case Expr::VAArgExprClass:
+ case Expr::CallWithStaticChainExprClass:
return canSubExprsThrow(*this, E);
// Some might be dependent for other reasons.
Index: lib/Sema/SemaExpr.cpp
===================================================================
--- lib/Sema/SemaExpr.cpp
+++ lib/Sema/SemaExpr.cpp
@@ -10839,6 +10839,48 @@
return new (Context) GNUNullExpr(Ty, TokenLoc);
}
+ExprResult Sema::ActOnCallWithStaticChain(SourceLocation BuiltinLoc, Expr *Call,
+ Expr *Chain, SourceLocation RPLoc) {
+ if (Call->getStmtClass() != Stmt::CallExprClass) {
+ Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_not_call)
+ << Call->getSourceRange();
+ return ExprError();
+ }
+
+ auto CE = cast<CallExpr>(Call);
+ if (CE->getCallee()->getType()->isBlockPointerType()) {
+ Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_block_call)
+ << Call->getSourceRange();
+ return ExprError();
+ }
+
+ const Decl *TargetDecl = CE->getCalleeDecl();
+ if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(TargetDecl))
+ if (FD->getBuiltinID()) {
+ Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_builtin_call)
+ << Call->getSourceRange();
+ return ExprError();
+ }
+
+ if (isa<CXXPseudoDestructorExpr>(CE->getCallee()->IgnoreParens())) {
+ Diag(BuiltinLoc, diag::err_first_argument_to_cwsc_pdtor_call)
+ << Call->getSourceRange();
+ return ExprError();
+ }
+
+ ExprResult ChainResult = UsualUnaryConversions(Chain);
+ if (ChainResult.isInvalid())
+ return ExprError();
+ if (!ChainResult.get()->getType()->isPointerType()) {
+ Diag(BuiltinLoc, diag::err_second_argument_to_cwsc_not_pointer)
+ << Chain->getSourceRange();
+ return ExprError();
+ }
+
+ return new (Context) CallWithStaticChainExpr(
+ cast<CallExpr>(Call), ChainResult.get(), BuiltinLoc, RPLoc);
+}
+
bool
Sema::ConversionToObjCStringLiteralCheck(QualType DstType, Expr *&Exp) {
if (!getLangOpts().ObjC1)
Index: lib/Sema/TreeTransform.h
===================================================================
--- lib/Sema/TreeTransform.h
+++ lib/Sema/TreeTransform.h
@@ -2828,6 +2828,13 @@
RParenLoc);
}
+ ExprResult RebuildCallWithStaticChainExpr(SourceLocation BuiltinLoc,
+ Expr *Call, Expr *Chain,
+ SourceLocation RParenLoc) {
+ return getSema().ActOnCallWithStaticChain(BuiltinLoc, Call, Chain,
+ RParenLoc);
+ }
+
private:
TypeLoc TransformTypeInObjectScope(TypeLoc TL,
QualType ObjectType,
@@ -10361,6 +10368,26 @@
RetTy, E->getOp(), E->getRParenLoc());
}
+template <typename Derived>
+ExprResult TreeTransform<Derived>::TransformCallWithStaticChainExpr(
+ CallWithStaticChainExpr *E) {
+ ExprResult Call = getDerived().TransformExpr(E->getCallExpr());
+ if (Call.isInvalid())
+ return ExprError();
+
+ ExprResult Chain = getDerived().TransformExpr(E->getChainExpr());
+ if (Chain.isInvalid())
+ return ExprError();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Call.get() == E->getCallExpr() &&
+ Chain.get() == E->getChainExpr())
+ return E;
+
+ return getDerived().RebuildCallWithStaticChainExpr(
+ E->getBuiltinLoc(), Call.get(), Chain.get(), E->getRParenLoc());
+}
+
//===----------------------------------------------------------------------===//
// Type reconstruction
//===----------------------------------------------------------------------===//
Index: lib/Serialization/ASTReaderStmt.cpp
===================================================================
--- lib/Serialization/ASTReaderStmt.cpp
+++ lib/Serialization/ASTReaderStmt.cpp
@@ -911,6 +911,14 @@
E->RParenLoc = ReadSourceLocation(Record, Idx);
}
+void ASTStmtReader::VisitCallWithStaticChainExpr(CallWithStaticChainExpr *E) {
+ VisitExpr(E);
+ E->SubExprs[CallWithStaticChainExpr::CALL] = Reader.ReadSubExpr();
+ E->SubExprs[CallWithStaticChainExpr::CHAIN] = Reader.ReadSubExpr();
+ E->BuiltinLoc = ReadSourceLocation(Record, Idx);
+ E->RParenLoc = ReadSourceLocation(Record, Idx);
+}
+
//===----------------------------------------------------------------------===//
// Objective-C Expressions and Statements
@@ -2955,6 +2963,10 @@
NumArrayIndexVars);
break;
}
+
+ case EXPR_CALL_WITH_STATIC_CHAIN:
+ S = new (Context) CallWithStaticChainExpr(Empty);
+ break;
}
// We hit a STMT_STOP, so we're done with this expression.
Index: lib/Serialization/ASTWriterStmt.cpp
===================================================================
--- lib/Serialization/ASTWriterStmt.cpp
+++ lib/Serialization/ASTWriterStmt.cpp
@@ -854,6 +854,15 @@
Code = serialization::EXPR_ATOMIC;
}
+void ASTStmtWriter::VisitCallWithStaticChainExpr(CallWithStaticChainExpr *E) {
+ VisitExpr(E);
+ Writer.AddStmt(E->getCallExpr());
+ Writer.AddStmt(E->getChainExpr());
+ Writer.AddSourceLocation(E->getBuiltinLoc(), Record);
+ Writer.AddSourceLocation(E->getRParenLoc(), Record);
+ Code = serialization::EXPR_CALL_WITH_STATIC_CHAIN;
+}
+
//===----------------------------------------------------------------------===//
// Objective-C Expressions and Statements.
//===----------------------------------------------------------------------===//
Index: lib/StaticAnalyzer/Core/ExprEngine.cpp
===================================================================
--- lib/StaticAnalyzer/Core/ExprEngine.cpp
+++ lib/StaticAnalyzer/Core/ExprEngine.cpp
@@ -770,7 +770,8 @@
case Stmt::SEHExceptStmtClass:
case Stmt::SEHLeaveStmtClass:
case Stmt::LambdaExprClass:
- case Stmt::SEHFinallyStmtClass: {
+ case Stmt::SEHFinallyStmtClass:
+ case Stmt::CallWithStaticChainExprClass: {
const ExplodedNode *node = Bldr.generateSink(S, Pred, Pred->getState());
Engine.addAbortedBlock(node, currBldrCtx->getBlock());
break;
Index: test/CodeGenCXX/cwsc.cpp
===================================================================
--- /dev/null
+++ test/CodeGenCXX/cwsc.cpp
@@ -0,0 +1,39 @@
+// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck -check-prefix=CHECK32 %s
+// RUN: %clang_cc1 -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck -check-prefix=CHECK64 %s
+
+struct A {
+ long x, y;
+};
+
+struct B {
+ long x, y, z, w;
+};
+
+extern "C" {
+
+int f1(A, A, A, A);
+B f2(void);
+_Complex float f3(void);
+A &f4();
+
+}
+
+void test() {
+ A a;
+
+ // CHECK32: call i32 bitcast (i32 (%struct.A*, %struct.A*, %struct.A*, %struct.A*)* @f1 to i32 (i8*, %struct.A*, %struct.A*, %struct.A*, %struct.A*)*)(i8* nest bitcast (i32 (%struct.A*, %struct.A*, %struct.A*, %struct.A*)* @f1 to i8*)
+ // CHECK64: call i32 bitcast (i32 (i64, i64, i64, i64, i64, i64, %struct.A*)* @f1 to i32 (i8*, i64, i64, i64, i64, i64, i64, %struct.A*)*)(i8* nest bitcast (i32 (i64, i64, i64, i64, i64, i64, %struct.A*)* @f1 to i8*)
+ __builtin_call_with_static_chain(f1(a, a, a, a), f1);
+
+ // CHECK32: call void bitcast (void (%struct.B*)* @f2 to void (%struct.B*, i8*)*)(%struct.B* sret %{{[0-9a-z]+}}, i8* nest bitcast (void (%struct.B*)* @f2 to i8*))
+ // CHECK64: call void bitcast (void (%struct.B*)* @f2 to void (%struct.B*, i8*)*)(%struct.B* sret %{{[0-9a-z]+}}, i8* nest bitcast (void (%struct.B*)* @f2 to i8*))
+ __builtin_call_with_static_chain(f2(), f2);
+
+ // CHECK32: call i64 bitcast (i64 ()* @f3 to i64 (i8*)*)(i8* nest bitcast (i64 ()* @f3 to i8*))
+ // CHECK64: call <2 x float> bitcast (<2 x float> ()* @f3 to <2 x float> (i8*)*)(i8* nest bitcast (<2 x float> ()* @f3 to i8*))
+ __builtin_call_with_static_chain(f3(), f3);
+
+ // CHECK32: call dereferenceable(8) %struct.A* bitcast (%struct.A* ()* @f4 to %struct.A* (i8*)*)(i8* nest bitcast (%struct.A* ()* @f4 to i8*))
+ // CHECK64: call dereferenceable(16) %struct.A* bitcast (%struct.A* ()* @f4 to %struct.A* (i8*)*)(i8* nest bitcast (%struct.A* ()* @f4 to i8*))
+ __builtin_call_with_static_chain(f4(), f4);
+}
Index: test/Sema/cwsc.c
===================================================================
--- /dev/null
+++ test/Sema/cwsc.c
@@ -0,0 +1,11 @@
+// RUN: %clang_cc1 -fsyntax-only -fblocks -verify %s
+
+void f();
+
+void g() {
+ __builtin_call_with_static_chain(f(), f);
+ __builtin_call_with_static_chain(f, f); // expected-error {{first argument to __builtin_call_with_static_chain must be a non-member call expression}}
+ __builtin_call_with_static_chain(^{}(), f); // expected-error {{first argument to __builtin_call_with_static_chain must not be a block call}}
+ __builtin_call_with_static_chain(__builtin_unreachable(), f); // expected-error {{first argument to __builtin_call_with_static_chain must not be a builtin call}}
+ __builtin_call_with_static_chain(f(), 42); // expected-error {{second argument to __builtin_call_with_static_chain must be of pointer type}}
+}
Index: test/SemaCXX/cwsc.cpp
===================================================================
--- /dev/null
+++ test/SemaCXX/cwsc.cpp
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+int &f();
+
+struct A {
+ void f();
+};
+
+typedef int I;
+
+void g() {
+ __builtin_call_with_static_chain(f(), f) = 42;
+ __builtin_call_with_static_chain(A().f(), f); // expected-error {{first argument to __builtin_call_with_static_chain must be a non-member call expression}}
+ __builtin_call_with_static_chain((42).~I(), f); // expected-error {{first argument to __builtin_call_with_static_chain must not be a pseudo-destructor call}}
+}
Index: tools/libclang/CXCursor.cpp
===================================================================
--- tools/libclang/CXCursor.cpp
+++ tools/libclang/CXCursor.cpp
@@ -253,6 +253,7 @@
case Stmt::ObjCDictionaryLiteralClass:
case Stmt::ObjCBoxedExprClass:
case Stmt::ObjCSubscriptRefExprClass:
+ case Stmt::CallWithStaticChainExprClass:
K = CXCursor_UnexposedExpr;
break;
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