llvm-project/clang/lib/AST/StmtProfile.cpp

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//===---- StmtProfile.cpp - Profile implementation for Stmt ASTs ----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements the Stmt::Profile method, which builds a unique bit
// representation that identifies a statement/expression.
//
//===----------------------------------------------------------------------===//
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
#include "clang/AST/ExprObjC.h"
#include "clang/AST/StmtVisitor.h"
#include "llvm/ADT/FoldingSet.h"
using namespace clang;
namespace {
class StmtProfiler : public StmtVisitor<StmtProfiler> {
llvm::FoldingSetNodeID &ID;
ASTContext &Context;
bool Canonical;
public:
StmtProfiler(llvm::FoldingSetNodeID &ID, ASTContext &Context,
bool Canonical)
: ID(ID), Context(Context), Canonical(Canonical) { }
void VisitStmt(Stmt *S);
#define STMT(Node, Base) void Visit##Node(Node *S);
#include "clang/AST/StmtNodes.inc"
/// \brief Visit a declaration that is referenced within an expression
/// or statement.
void VisitDecl(Decl *D);
/// \brief Visit a type that is referenced within an expression or
/// statement.
void VisitType(QualType T);
/// \brief Visit a name that occurs within an expression or statement.
void VisitName(DeclarationName Name);
/// \brief Visit a nested-name-specifier that occurs within an expression
/// or statement.
void VisitNestedNameSpecifier(NestedNameSpecifier *NNS);
/// \brief Visit a template name that occurs within an expression or
/// statement.
void VisitTemplateName(TemplateName Name);
/// \brief Visit template arguments that occur within an expression or
/// statement.
void VisitTemplateArguments(const TemplateArgumentLoc *Args, unsigned NumArgs);
/// \brief Visit a single template argument.
void VisitTemplateArgument(const TemplateArgument &Arg);
};
}
void StmtProfiler::VisitStmt(Stmt *S) {
ID.AddInteger(S->getStmtClass());
for (Stmt::child_iterator C = S->child_begin(), CEnd = S->child_end();
C != CEnd; ++C)
Visit(*C);
}
void StmtProfiler::VisitDeclStmt(DeclStmt *S) {
VisitStmt(S);
for (DeclStmt::decl_iterator D = S->decl_begin(), DEnd = S->decl_end();
D != DEnd; ++D)
VisitDecl(*D);
}
void StmtProfiler::VisitNullStmt(NullStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitCompoundStmt(CompoundStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitSwitchCase(SwitchCase *S) {
VisitStmt(S);
}
void StmtProfiler::VisitCaseStmt(CaseStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitDefaultStmt(DefaultStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitLabelStmt(LabelStmt *S) {
VisitStmt(S);
VisitName(S->getID());
}
void StmtProfiler::VisitIfStmt(IfStmt *S) {
VisitStmt(S);
VisitDecl(S->getConditionVariable());
}
void StmtProfiler::VisitSwitchStmt(SwitchStmt *S) {
VisitStmt(S);
VisitDecl(S->getConditionVariable());
}
void StmtProfiler::VisitWhileStmt(WhileStmt *S) {
VisitStmt(S);
VisitDecl(S->getConditionVariable());
}
void StmtProfiler::VisitDoStmt(DoStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitForStmt(ForStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitGotoStmt(GotoStmt *S) {
VisitStmt(S);
VisitName(S->getLabel()->getID());
}
void StmtProfiler::VisitIndirectGotoStmt(IndirectGotoStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitContinueStmt(ContinueStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitBreakStmt(BreakStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitReturnStmt(ReturnStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitAsmStmt(AsmStmt *S) {
VisitStmt(S);
ID.AddBoolean(S->isVolatile());
ID.AddBoolean(S->isSimple());
VisitStringLiteral(S->getAsmString());
ID.AddInteger(S->getNumOutputs());
for (unsigned I = 0, N = S->getNumOutputs(); I != N; ++I) {
ID.AddString(S->getOutputName(I));
VisitStringLiteral(S->getOutputConstraintLiteral(I));
}
ID.AddInteger(S->getNumInputs());
for (unsigned I = 0, N = S->getNumInputs(); I != N; ++I) {
ID.AddString(S->getInputName(I));
VisitStringLiteral(S->getInputConstraintLiteral(I));
}
ID.AddInteger(S->getNumClobbers());
for (unsigned I = 0, N = S->getNumClobbers(); I != N; ++I)
VisitStringLiteral(S->getClobber(I));
}
void StmtProfiler::VisitCXXCatchStmt(CXXCatchStmt *S) {
VisitStmt(S);
VisitType(S->getCaughtType());
}
void StmtProfiler::VisitCXXTryStmt(CXXTryStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitObjCForCollectionStmt(ObjCForCollectionStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitObjCAtCatchStmt(ObjCAtCatchStmt *S) {
VisitStmt(S);
ID.AddBoolean(S->hasEllipsis());
if (S->getCatchParamDecl())
VisitType(S->getCatchParamDecl()->getType());
}
void StmtProfiler::VisitObjCAtFinallyStmt(ObjCAtFinallyStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitObjCAtTryStmt(ObjCAtTryStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitObjCAtThrowStmt(ObjCAtThrowStmt *S) {
VisitStmt(S);
}
void StmtProfiler::VisitExpr(Expr *S) {
VisitStmt(S);
}
void StmtProfiler::VisitDeclRefExpr(DeclRefExpr *S) {
VisitExpr(S);
if (!Canonical)
VisitNestedNameSpecifier(S->getQualifier());
VisitDecl(S->getDecl());
if (!Canonical)
VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
}
void StmtProfiler::VisitPredefinedExpr(PredefinedExpr *S) {
VisitExpr(S);
ID.AddInteger(S->getIdentType());
}
void StmtProfiler::VisitIntegerLiteral(IntegerLiteral *S) {
VisitExpr(S);
S->getValue().Profile(ID);
}
void StmtProfiler::VisitCharacterLiteral(CharacterLiteral *S) {
VisitExpr(S);
ID.AddBoolean(S->isWide());
ID.AddInteger(S->getValue());
}
void StmtProfiler::VisitFloatingLiteral(FloatingLiteral *S) {
VisitExpr(S);
S->getValue().Profile(ID);
ID.AddBoolean(S->isExact());
}
void StmtProfiler::VisitImaginaryLiteral(ImaginaryLiteral *S) {
VisitExpr(S);
}
void StmtProfiler::VisitStringLiteral(StringLiteral *S) {
VisitExpr(S);
ID.AddString(S->getString());
ID.AddBoolean(S->isWide());
}
void StmtProfiler::VisitParenExpr(ParenExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitParenListExpr(ParenListExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitUnaryOperator(UnaryOperator *S) {
VisitExpr(S);
ID.AddInteger(S->getOpcode());
}
Completely reimplement __builtin_offsetof, based on a patch by Roberto Amadini. This change introduces a new expression node type, OffsetOfExpr, that describes __builtin_offsetof. Previously, __builtin_offsetof was implemented using a unary operator whose subexpression involved various synthesized array-subscript and member-reference expressions, which was ugly and made it very hard to instantiate as a template. OffsetOfExpr represents the AST more faithfully, with proper type source information and a more compact representation. OffsetOfExpr also has support for dependent __builtin_offsetof expressions; it can be value-dependent, but will never be type-dependent (like sizeof or alignof). This commit introduces template instantiation for __builtin_offsetof as well. There are two major caveats to this patch: 1) CodeGen cannot handle the case where __builtin_offsetof is not a constant expression, so it produces an error. So, to avoid regressing in C, we retain the old UnaryOperator-based __builtin_offsetof implementation in C while using the shiny new OffsetOfExpr implementation in C++. The old implementation can go away once we have proper CodeGen support for this case, which we expect won't cause much trouble in C++. 2) __builtin_offsetof doesn't work well with non-POD class types, particularly when the designated field is found within a base class. I will address this in a subsequent patch. Fixes PR5880 and a bunch of assertions when building Boost.Python tests. llvm-svn: 102542
2010-04-29 06:16:22 +08:00
void StmtProfiler::VisitOffsetOfExpr(OffsetOfExpr *S) {
VisitType(S->getTypeSourceInfo()->getType());
unsigned n = S->getNumComponents();
for (unsigned i = 0; i < n; ++i) {
const OffsetOfExpr::OffsetOfNode& ON = S->getComponent(i);
ID.AddInteger(ON.getKind());
switch (ON.getKind()) {
case OffsetOfExpr::OffsetOfNode::Array:
// Expressions handled below.
break;
case OffsetOfExpr::OffsetOfNode::Field:
VisitDecl(ON.getField());
break;
case OffsetOfExpr::OffsetOfNode::Identifier:
ID.AddPointer(ON.getFieldName());
break;
case OffsetOfExpr::OffsetOfNode::Base:
// These nodes are implicit, and therefore don't need profiling.
break;
Completely reimplement __builtin_offsetof, based on a patch by Roberto Amadini. This change introduces a new expression node type, OffsetOfExpr, that describes __builtin_offsetof. Previously, __builtin_offsetof was implemented using a unary operator whose subexpression involved various synthesized array-subscript and member-reference expressions, which was ugly and made it very hard to instantiate as a template. OffsetOfExpr represents the AST more faithfully, with proper type source information and a more compact representation. OffsetOfExpr also has support for dependent __builtin_offsetof expressions; it can be value-dependent, but will never be type-dependent (like sizeof or alignof). This commit introduces template instantiation for __builtin_offsetof as well. There are two major caveats to this patch: 1) CodeGen cannot handle the case where __builtin_offsetof is not a constant expression, so it produces an error. So, to avoid regressing in C, we retain the old UnaryOperator-based __builtin_offsetof implementation in C while using the shiny new OffsetOfExpr implementation in C++. The old implementation can go away once we have proper CodeGen support for this case, which we expect won't cause much trouble in C++. 2) __builtin_offsetof doesn't work well with non-POD class types, particularly when the designated field is found within a base class. I will address this in a subsequent patch. Fixes PR5880 and a bunch of assertions when building Boost.Python tests. llvm-svn: 102542
2010-04-29 06:16:22 +08:00
}
}
Completely reimplement __builtin_offsetof, based on a patch by Roberto Amadini. This change introduces a new expression node type, OffsetOfExpr, that describes __builtin_offsetof. Previously, __builtin_offsetof was implemented using a unary operator whose subexpression involved various synthesized array-subscript and member-reference expressions, which was ugly and made it very hard to instantiate as a template. OffsetOfExpr represents the AST more faithfully, with proper type source information and a more compact representation. OffsetOfExpr also has support for dependent __builtin_offsetof expressions; it can be value-dependent, but will never be type-dependent (like sizeof or alignof). This commit introduces template instantiation for __builtin_offsetof as well. There are two major caveats to this patch: 1) CodeGen cannot handle the case where __builtin_offsetof is not a constant expression, so it produces an error. So, to avoid regressing in C, we retain the old UnaryOperator-based __builtin_offsetof implementation in C while using the shiny new OffsetOfExpr implementation in C++. The old implementation can go away once we have proper CodeGen support for this case, which we expect won't cause much trouble in C++. 2) __builtin_offsetof doesn't work well with non-POD class types, particularly when the designated field is found within a base class. I will address this in a subsequent patch. Fixes PR5880 and a bunch of assertions when building Boost.Python tests. llvm-svn: 102542
2010-04-29 06:16:22 +08:00
VisitExpr(S);
}
void StmtProfiler::VisitSizeOfAlignOfExpr(SizeOfAlignOfExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->isSizeOf());
if (S->isArgumentType())
VisitType(S->getArgumentType());
}
void StmtProfiler::VisitArraySubscriptExpr(ArraySubscriptExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitCallExpr(CallExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitMemberExpr(MemberExpr *S) {
VisitExpr(S);
VisitDecl(S->getMemberDecl());
if (!Canonical)
VisitNestedNameSpecifier(S->getQualifier());
ID.AddBoolean(S->isArrow());
}
void StmtProfiler::VisitCompoundLiteralExpr(CompoundLiteralExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->isFileScope());
}
void StmtProfiler::VisitCastExpr(CastExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitImplicitCastExpr(ImplicitCastExpr *S) {
VisitCastExpr(S);
ID.AddInteger(S->getValueKind());
}
void StmtProfiler::VisitExplicitCastExpr(ExplicitCastExpr *S) {
VisitCastExpr(S);
VisitType(S->getTypeAsWritten());
}
void StmtProfiler::VisitCStyleCastExpr(CStyleCastExpr *S) {
VisitExplicitCastExpr(S);
}
void StmtProfiler::VisitBinaryOperator(BinaryOperator *S) {
VisitExpr(S);
ID.AddInteger(S->getOpcode());
}
void StmtProfiler::VisitCompoundAssignOperator(CompoundAssignOperator *S) {
VisitBinaryOperator(S);
}
void StmtProfiler::VisitConditionalOperator(ConditionalOperator *S) {
VisitExpr(S);
}
void StmtProfiler::VisitAddrLabelExpr(AddrLabelExpr *S) {
VisitExpr(S);
VisitName(S->getLabel()->getID());
}
void StmtProfiler::VisitStmtExpr(StmtExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitTypesCompatibleExpr(TypesCompatibleExpr *S) {
VisitExpr(S);
VisitType(S->getArgType1());
VisitType(S->getArgType2());
}
void StmtProfiler::VisitShuffleVectorExpr(ShuffleVectorExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitChooseExpr(ChooseExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitGNUNullExpr(GNUNullExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitVAArgExpr(VAArgExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitInitListExpr(InitListExpr *S) {
if (S->getSyntacticForm()) {
VisitInitListExpr(S->getSyntacticForm());
return;
}
VisitExpr(S);
}
void StmtProfiler::VisitDesignatedInitExpr(DesignatedInitExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->usesGNUSyntax());
for (DesignatedInitExpr::designators_iterator D = S->designators_begin(),
DEnd = S->designators_end();
D != DEnd; ++D) {
if (D->isFieldDesignator()) {
ID.AddInteger(0);
VisitName(D->getFieldName());
continue;
}
if (D->isArrayDesignator()) {
ID.AddInteger(1);
} else {
assert(D->isArrayRangeDesignator());
ID.AddInteger(2);
}
ID.AddInteger(D->getFirstExprIndex());
}
}
void StmtProfiler::VisitImplicitValueInitExpr(ImplicitValueInitExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitExtVectorElementExpr(ExtVectorElementExpr *S) {
VisitExpr(S);
VisitName(&S->getAccessor());
}
void StmtProfiler::VisitBlockExpr(BlockExpr *S) {
VisitExpr(S);
VisitDecl(S->getBlockDecl());
}
void StmtProfiler::VisitBlockDeclRefExpr(BlockDeclRefExpr *S) {
VisitExpr(S);
VisitDecl(S->getDecl());
ID.AddBoolean(S->isByRef());
ID.AddBoolean(S->isConstQualAdded());
if (S->getCopyConstructorExpr())
Visit(S->getCopyConstructorExpr());
}
static Stmt::StmtClass DecodeOperatorCall(CXXOperatorCallExpr *S,
UnaryOperatorKind &UnaryOp,
BinaryOperatorKind &BinaryOp) {
switch (S->getOperator()) {
case OO_None:
case OO_New:
case OO_Delete:
case OO_Array_New:
case OO_Array_Delete:
case OO_Arrow:
case OO_Call:
case OO_Conditional:
case NUM_OVERLOADED_OPERATORS:
llvm_unreachable("Invalid operator call kind");
return Stmt::ArraySubscriptExprClass;
case OO_Plus:
if (S->getNumArgs() == 1) {
UnaryOp = UO_Plus;
return Stmt::UnaryOperatorClass;
}
BinaryOp = BO_Add;
return Stmt::BinaryOperatorClass;
case OO_Minus:
if (S->getNumArgs() == 1) {
UnaryOp = UO_Minus;
return Stmt::UnaryOperatorClass;
}
BinaryOp = BO_Sub;
return Stmt::BinaryOperatorClass;
case OO_Star:
if (S->getNumArgs() == 1) {
UnaryOp = UO_Minus;
return Stmt::UnaryOperatorClass;
}
BinaryOp = BO_Sub;
return Stmt::BinaryOperatorClass;
case OO_Slash:
BinaryOp = BO_Div;
return Stmt::BinaryOperatorClass;
case OO_Percent:
BinaryOp = BO_Rem;
return Stmt::BinaryOperatorClass;
case OO_Caret:
BinaryOp = BO_Xor;
return Stmt::BinaryOperatorClass;
case OO_Amp:
if (S->getNumArgs() == 1) {
UnaryOp = UO_AddrOf;
return Stmt::UnaryOperatorClass;
}
BinaryOp = BO_And;
return Stmt::BinaryOperatorClass;
case OO_Pipe:
BinaryOp = BO_Or;
return Stmt::BinaryOperatorClass;
case OO_Tilde:
UnaryOp = UO_Not;
return Stmt::UnaryOperatorClass;
case OO_Exclaim:
UnaryOp = UO_LNot;
return Stmt::UnaryOperatorClass;
case OO_Equal:
BinaryOp = BO_Assign;
return Stmt::BinaryOperatorClass;
case OO_Less:
BinaryOp = BO_LT;
return Stmt::BinaryOperatorClass;
case OO_Greater:
BinaryOp = BO_GT;
return Stmt::BinaryOperatorClass;
case OO_PlusEqual:
BinaryOp = BO_AddAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_MinusEqual:
BinaryOp = BO_SubAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_StarEqual:
BinaryOp = BO_MulAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_SlashEqual:
BinaryOp = BO_DivAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_PercentEqual:
BinaryOp = BO_RemAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_CaretEqual:
BinaryOp = BO_XorAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_AmpEqual:
BinaryOp = BO_AndAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_PipeEqual:
BinaryOp = BO_OrAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_LessLess:
BinaryOp = BO_Shl;
return Stmt::BinaryOperatorClass;
case OO_GreaterGreater:
BinaryOp = BO_Shr;
return Stmt::BinaryOperatorClass;
case OO_LessLessEqual:
BinaryOp = BO_ShlAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_GreaterGreaterEqual:
BinaryOp = BO_ShrAssign;
return Stmt::CompoundAssignOperatorClass;
case OO_EqualEqual:
BinaryOp = BO_EQ;
return Stmt::BinaryOperatorClass;
case OO_ExclaimEqual:
BinaryOp = BO_NE;
return Stmt::BinaryOperatorClass;
case OO_LessEqual:
BinaryOp = BO_LE;
return Stmt::BinaryOperatorClass;
case OO_GreaterEqual:
BinaryOp = BO_GE;
return Stmt::BinaryOperatorClass;
case OO_AmpAmp:
BinaryOp = BO_LAnd;
return Stmt::BinaryOperatorClass;
case OO_PipePipe:
BinaryOp = BO_LOr;
return Stmt::BinaryOperatorClass;
case OO_PlusPlus:
UnaryOp = S->getNumArgs() == 1? UO_PreInc
: UO_PostInc;
return Stmt::UnaryOperatorClass;
case OO_MinusMinus:
UnaryOp = S->getNumArgs() == 1? UO_PreDec
: UO_PostDec;
return Stmt::UnaryOperatorClass;
case OO_Comma:
BinaryOp = BO_Comma;
return Stmt::BinaryOperatorClass;
case OO_ArrowStar:
BinaryOp = BO_PtrMemI;
return Stmt::BinaryOperatorClass;
case OO_Subscript:
return Stmt::ArraySubscriptExprClass;
}
llvm_unreachable("Invalid overloaded operator expression");
}
void StmtProfiler::VisitCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
if (S->isTypeDependent()) {
// Type-dependent operator calls are profiled like their underlying
// syntactic operator.
UnaryOperatorKind UnaryOp = UO_Extension;
BinaryOperatorKind BinaryOp = BO_Comma;
Stmt::StmtClass SC = DecodeOperatorCall(S, UnaryOp, BinaryOp);
ID.AddInteger(SC);
for (unsigned I = 0, N = S->getNumArgs(); I != N; ++I)
Visit(S->getArg(I));
if (SC == Stmt::UnaryOperatorClass)
ID.AddInteger(UnaryOp);
else if (SC == Stmt::BinaryOperatorClass ||
SC == Stmt::CompoundAssignOperatorClass)
ID.AddInteger(BinaryOp);
else
assert(SC == Stmt::ArraySubscriptExprClass);
return;
}
VisitCallExpr(S);
ID.AddInteger(S->getOperator());
}
void StmtProfiler::VisitCXXMemberCallExpr(CXXMemberCallExpr *S) {
VisitCallExpr(S);
}
void StmtProfiler::VisitCXXNamedCastExpr(CXXNamedCastExpr *S) {
VisitExplicitCastExpr(S);
}
void StmtProfiler::VisitCXXStaticCastExpr(CXXStaticCastExpr *S) {
VisitCXXNamedCastExpr(S);
}
void StmtProfiler::VisitCXXDynamicCastExpr(CXXDynamicCastExpr *S) {
VisitCXXNamedCastExpr(S);
}
void StmtProfiler::VisitCXXReinterpretCastExpr(CXXReinterpretCastExpr *S) {
VisitCXXNamedCastExpr(S);
}
void StmtProfiler::VisitCXXConstCastExpr(CXXConstCastExpr *S) {
VisitCXXNamedCastExpr(S);
}
void StmtProfiler::VisitCXXBoolLiteralExpr(CXXBoolLiteralExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->getValue());
}
void StmtProfiler::VisitCXXNullPtrLiteralExpr(CXXNullPtrLiteralExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitCXXTypeidExpr(CXXTypeidExpr *S) {
VisitExpr(S);
if (S->isTypeOperand())
VisitType(S->getTypeOperand());
}
void StmtProfiler::VisitCXXThisExpr(CXXThisExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitCXXThrowExpr(CXXThrowExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitCXXDefaultArgExpr(CXXDefaultArgExpr *S) {
VisitExpr(S);
VisitDecl(S->getParam());
}
void StmtProfiler::VisitCXXBindTemporaryExpr(CXXBindTemporaryExpr *S) {
VisitExpr(S);
VisitDecl(
const_cast<CXXDestructorDecl *>(S->getTemporary()->getDestructor()));
}
void StmtProfiler::VisitCXXConstructExpr(CXXConstructExpr *S) {
VisitExpr(S);
VisitDecl(S->getConstructor());
ID.AddBoolean(S->isElidable());
}
void StmtProfiler::VisitCXXFunctionalCastExpr(CXXFunctionalCastExpr *S) {
VisitExplicitCastExpr(S);
}
void StmtProfiler::VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *S) {
VisitCXXConstructExpr(S);
}
void StmtProfiler::VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitCXXDeleteExpr(CXXDeleteExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->isGlobalDelete());
ID.AddBoolean(S->isArrayForm());
VisitDecl(S->getOperatorDelete());
}
void StmtProfiler::VisitCXXNewExpr(CXXNewExpr *S) {
VisitExpr(S);
VisitType(S->getAllocatedType());
VisitDecl(S->getOperatorNew());
VisitDecl(S->getOperatorDelete());
VisitDecl(S->getConstructor());
ID.AddBoolean(S->isArray());
ID.AddInteger(S->getNumPlacementArgs());
ID.AddBoolean(S->isGlobalNew());
ID.AddBoolean(S->isParenTypeId());
ID.AddBoolean(S->hasInitializer());
ID.AddInteger(S->getNumConstructorArgs());
}
void StmtProfiler::VisitCXXPseudoDestructorExpr(CXXPseudoDestructorExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->isArrow());
VisitNestedNameSpecifier(S->getQualifier());
VisitType(S->getDestroyedType());
}
void StmtProfiler::VisitOverloadExpr(OverloadExpr *S) {
VisitExpr(S);
VisitNestedNameSpecifier(S->getQualifier());
VisitName(S->getName());
ID.AddBoolean(S->hasExplicitTemplateArgs());
if (S->hasExplicitTemplateArgs())
VisitTemplateArguments(S->getExplicitTemplateArgs().getTemplateArgs(),
S->getExplicitTemplateArgs().NumTemplateArgs);
}
void
StmtProfiler::VisitUnresolvedLookupExpr(UnresolvedLookupExpr *S) {
VisitOverloadExpr(S);
}
void StmtProfiler::VisitUnaryTypeTraitExpr(UnaryTypeTraitExpr *S) {
VisitExpr(S);
ID.AddInteger(S->getTrait());
VisitType(S->getQueriedType());
}
void
StmtProfiler::VisitDependentScopeDeclRefExpr(DependentScopeDeclRefExpr *S) {
VisitExpr(S);
VisitName(S->getDeclName());
VisitNestedNameSpecifier(S->getQualifier());
ID.AddBoolean(S->hasExplicitTemplateArgs());
if (S->hasExplicitTemplateArgs())
VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
}
void StmtProfiler::VisitCXXExprWithTemporaries(CXXExprWithTemporaries *S) {
VisitExpr(S);
for (unsigned I = 0, N = S->getNumTemporaries(); I != N; ++I)
VisitDecl(
const_cast<CXXDestructorDecl *>(S->getTemporary(I)->getDestructor()));
}
void
StmtProfiler::VisitCXXUnresolvedConstructExpr(CXXUnresolvedConstructExpr *S) {
VisitExpr(S);
VisitType(S->getTypeAsWritten());
}
void
StmtProfiler::VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *S) {
ID.AddBoolean(S->isImplicitAccess());
if (!S->isImplicitAccess()) {
VisitExpr(S);
ID.AddBoolean(S->isArrow());
}
VisitNestedNameSpecifier(S->getQualifier());
VisitName(S->getMember());
ID.AddBoolean(S->hasExplicitTemplateArgs());
if (S->hasExplicitTemplateArgs())
VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
}
void StmtProfiler::VisitUnresolvedMemberExpr(UnresolvedMemberExpr *S) {
ID.AddBoolean(S->isImplicitAccess());
if (!S->isImplicitAccess()) {
VisitExpr(S);
ID.AddBoolean(S->isArrow());
}
VisitNestedNameSpecifier(S->getQualifier());
VisitName(S->getMemberName());
ID.AddBoolean(S->hasExplicitTemplateArgs());
if (S->hasExplicitTemplateArgs())
VisitTemplateArguments(S->getTemplateArgs(), S->getNumTemplateArgs());
}
void StmtProfiler::VisitObjCStringLiteral(ObjCStringLiteral *S) {
VisitExpr(S);
}
void StmtProfiler::VisitObjCEncodeExpr(ObjCEncodeExpr *S) {
VisitExpr(S);
VisitType(S->getEncodedType());
}
void StmtProfiler::VisitObjCSelectorExpr(ObjCSelectorExpr *S) {
VisitExpr(S);
VisitName(S->getSelector());
}
void StmtProfiler::VisitObjCProtocolExpr(ObjCProtocolExpr *S) {
VisitExpr(S);
VisitDecl(S->getProtocol());
}
void StmtProfiler::VisitObjCIvarRefExpr(ObjCIvarRefExpr *S) {
VisitExpr(S);
VisitDecl(S->getDecl());
ID.AddBoolean(S->isArrow());
ID.AddBoolean(S->isFreeIvar());
}
void StmtProfiler::VisitObjCPropertyRefExpr(ObjCPropertyRefExpr *S) {
VisitExpr(S);
VisitDecl(S->getProperty());
}
void StmtProfiler::VisitObjCImplicitSetterGetterRefExpr(
ObjCImplicitSetterGetterRefExpr *S) {
VisitExpr(S);
VisitDecl(S->getGetterMethod());
VisitDecl(S->getSetterMethod());
VisitDecl(S->getInterfaceDecl());
}
void StmtProfiler::VisitObjCMessageExpr(ObjCMessageExpr *S) {
VisitExpr(S);
VisitName(S->getSelector());
VisitDecl(S->getMethodDecl());
}
void StmtProfiler::VisitObjCSuperExpr(ObjCSuperExpr *S) {
VisitExpr(S);
}
void StmtProfiler::VisitObjCIsaExpr(ObjCIsaExpr *S) {
VisitExpr(S);
ID.AddBoolean(S->isArrow());
}
void StmtProfiler::VisitDecl(Decl *D) {
ID.AddInteger(D? D->getKind() : 0);
if (Canonical && D) {
if (NonTypeTemplateParmDecl *NTTP = dyn_cast<NonTypeTemplateParmDecl>(D)) {
ID.AddInteger(NTTP->getDepth());
ID.AddInteger(NTTP->getIndex());
VisitType(NTTP->getType());
return;
}
if (ParmVarDecl *Parm = dyn_cast<ParmVarDecl>(D)) {
// The Itanium C++ ABI uses the type of a parameter when mangling
// expressions that involve function parameters, so we will use the
// parameter's type for establishing function parameter identity. That
// way, our definition of "equivalent" (per C++ [temp.over.link])
// matches the definition of "equivalent" used for name mangling.
VisitType(Parm->getType());
return;
}
if (TemplateTemplateParmDecl *TTP = dyn_cast<TemplateTemplateParmDecl>(D)) {
ID.AddInteger(TTP->getDepth());
ID.AddInteger(TTP->getIndex());
return;
}
}
ID.AddPointer(D? D->getCanonicalDecl() : 0);
}
void StmtProfiler::VisitType(QualType T) {
if (Canonical)
T = Context.getCanonicalType(T);
ID.AddPointer(T.getAsOpaquePtr());
}
void StmtProfiler::VisitName(DeclarationName Name) {
ID.AddPointer(Name.getAsOpaquePtr());
}
void StmtProfiler::VisitNestedNameSpecifier(NestedNameSpecifier *NNS) {
if (Canonical)
NNS = Context.getCanonicalNestedNameSpecifier(NNS);
ID.AddPointer(NNS);
}
void StmtProfiler::VisitTemplateName(TemplateName Name) {
if (Canonical)
Name = Context.getCanonicalTemplateName(Name);
Name.Profile(ID);
}
void StmtProfiler::VisitTemplateArguments(const TemplateArgumentLoc *Args,
unsigned NumArgs) {
ID.AddInteger(NumArgs);
for (unsigned I = 0; I != NumArgs; ++I)
VisitTemplateArgument(Args[I].getArgument());
}
void StmtProfiler::VisitTemplateArgument(const TemplateArgument &Arg) {
// Mostly repetitive with TemplateArgument::Profile!
ID.AddInteger(Arg.getKind());
switch (Arg.getKind()) {
case TemplateArgument::Null:
break;
case TemplateArgument::Type:
VisitType(Arg.getAsType());
break;
case TemplateArgument::Template:
VisitTemplateName(Arg.getAsTemplate());
break;
case TemplateArgument::Declaration:
VisitDecl(Arg.getAsDecl());
break;
case TemplateArgument::Integral:
Arg.getAsIntegral()->Profile(ID);
VisitType(Arg.getIntegralType());
break;
case TemplateArgument::Expression:
Visit(Arg.getAsExpr());
break;
case TemplateArgument::Pack:
const TemplateArgument *Pack = Arg.pack_begin();
for (unsigned i = 0, e = Arg.pack_size(); i != e; ++i)
VisitTemplateArgument(Pack[i]);
break;
}
}
void Stmt::Profile(llvm::FoldingSetNodeID &ID, ASTContext &Context,
bool Canonical) {
StmtProfiler Profiler(ID, Context, Canonical);
Profiler.Visit(this);
}