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-rw-r--r--clang/lib/AST/CXXInheritance.cpp15
-rw-r--r--clang/lib/AST/Decl.cpp1
-rw-r--r--clang/lib/AST/DeclBase.cpp4
-rw-r--r--clang/lib/AST/DeclOpenMP.cpp30
-rw-r--r--clang/lib/AST/DeclPrinter.cpp34
-rw-r--r--clang/lib/AST/ItaniumMangle.cpp6
-rw-r--r--clang/lib/AST/MicrosoftMangle.cpp6
-rw-r--r--clang/lib/Basic/OpenMPKinds.cpp1
-rw-r--r--clang/lib/CodeGen/CGDecl.cpp8
-rw-r--r--clang/lib/CodeGen/CodeGenModule.cpp4
-rw-r--r--clang/lib/CodeGen/CodeGenModule.h4
-rw-r--r--clang/lib/Parse/ParseDecl.cpp8
-rw-r--r--clang/lib/Parse/ParseDeclCXX.cpp2
-rw-r--r--clang/lib/Parse/ParseOpenMP.cpp264
-rw-r--r--clang/lib/Parse/Parser.cpp2
-rw-r--r--clang/lib/Sema/ScopeInfo.cpp1
-rw-r--r--clang/lib/Sema/SemaDecl.cpp5
-rw-r--r--clang/lib/Sema/SemaExpr.cpp13
-rw-r--r--clang/lib/Sema/SemaLookup.cpp8
-rw-r--r--clang/lib/Sema/SemaOpenMP.cpp232
-rw-r--r--clang/lib/Sema/SemaTemplateInstantiateDecl.cpp75
-rw-r--r--clang/lib/Serialization/ASTCommon.cpp1
-rw-r--r--clang/lib/Serialization/ASTReaderDecl.cpp16
-rw-r--r--clang/lib/Serialization/ASTWriterDecl.cpp11
24 files changed, 732 insertions, 19 deletions
diff --git a/clang/lib/AST/CXXInheritance.cpp b/clang/lib/AST/CXXInheritance.cpp
index 6785a0c2935..6a6ca76a016 100644
--- a/clang/lib/AST/CXXInheritance.cpp
+++ b/clang/lib/AST/CXXInheritance.cpp
@@ -405,6 +405,21 @@ bool CXXRecordDecl::FindOrdinaryMember(const CXXBaseSpecifier *Specifier,
return false;
}
+bool CXXRecordDecl::FindOMPReductionMember(const CXXBaseSpecifier *Specifier,
+ CXXBasePath &Path,
+ DeclarationName Name) {
+ RecordDecl *BaseRecord =
+ Specifier->getType()->castAs<RecordType>()->getDecl();
+
+ for (Path.Decls = BaseRecord->lookup(Name); !Path.Decls.empty();
+ Path.Decls = Path.Decls.slice(1)) {
+ if (Path.Decls.front()->isInIdentifierNamespace(IDNS_OMPReduction))
+ return true;
+ }
+
+ return false;
+}
+
bool CXXRecordDecl::
FindNestedNameSpecifierMember(const CXXBaseSpecifier *Specifier,
CXXBasePath &Path,
diff --git a/clang/lib/AST/Decl.cpp b/clang/lib/AST/Decl.cpp
index 6451a5c4b17..041b530bf07 100644
--- a/clang/lib/AST/Decl.cpp
+++ b/clang/lib/AST/Decl.cpp
@@ -18,6 +18,7 @@
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclOpenMP.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
diff --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index a572687afe6..27ccb7d5d76 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -633,6 +633,9 @@ unsigned Decl::getIdentifierNamespaceForKind(Kind DeclKind) {
case TemplateTemplateParm:
return IDNS_Ordinary | IDNS_Tag | IDNS_Type;
+ case OMPDeclareReduction:
+ return IDNS_OMPReduction;
+
// Never have names.
case Friend:
case FriendTemplate:
@@ -963,6 +966,7 @@ DeclContext *DeclContext::getPrimaryContext() {
case Decl::LinkageSpec:
case Decl::Block:
case Decl::Captured:
+ case Decl::OMPDeclareReduction:
// There is only one DeclContext for these entities.
return this;
diff --git a/clang/lib/AST/DeclOpenMP.cpp b/clang/lib/AST/DeclOpenMP.cpp
index 2c474106e89..5b06ce0778a 100644
--- a/clang/lib/AST/DeclOpenMP.cpp
+++ b/clang/lib/AST/DeclOpenMP.cpp
@@ -54,6 +54,36 @@ void OMPThreadPrivateDecl::setVars(ArrayRef<Expr *> VL) {
}
//===----------------------------------------------------------------------===//
+// OMPDeclareReductionDecl Implementation.
+//===----------------------------------------------------------------------===//
+
+void OMPDeclareReductionDecl::anchor() {}
+
+OMPDeclareReductionDecl *OMPDeclareReductionDecl::Create(
+ ASTContext &C, DeclContext *DC, SourceLocation L, DeclarationName Name,
+ QualType T, OMPDeclareReductionDecl *PrevDeclInScope) {
+ return new (C, DC) OMPDeclareReductionDecl(OMPDeclareReduction, DC, L, Name,
+ T, PrevDeclInScope);
+}
+
+OMPDeclareReductionDecl *
+OMPDeclareReductionDecl::CreateDeserialized(ASTContext &C, unsigned ID) {
+ return new (C, ID) OMPDeclareReductionDecl(
+ OMPDeclareReduction, /*DC=*/nullptr, SourceLocation(), DeclarationName(),
+ QualType(), /*PrevDeclInScope=*/nullptr);
+}
+
+OMPDeclareReductionDecl *OMPDeclareReductionDecl::getPrevDeclInScope() {
+ return cast_or_null<OMPDeclareReductionDecl>(
+ PrevDeclInScope.get(getASTContext().getExternalSource()));
+}
+const OMPDeclareReductionDecl *
+OMPDeclareReductionDecl::getPrevDeclInScope() const {
+ return cast_or_null<OMPDeclareReductionDecl>(
+ PrevDeclInScope.get(getASTContext().getExternalSource()));
+}
+
+//===----------------------------------------------------------------------===//
// OMPCapturedExprDecl Implementation.
//===----------------------------------------------------------------------===//
diff --git a/clang/lib/AST/DeclPrinter.cpp b/clang/lib/AST/DeclPrinter.cpp
index 76940840f42..dd3f3b4a0d9 100644
--- a/clang/lib/AST/DeclPrinter.cpp
+++ b/clang/lib/AST/DeclPrinter.cpp
@@ -92,6 +92,7 @@ namespace {
void VisitUsingDecl(UsingDecl *D);
void VisitUsingShadowDecl(UsingShadowDecl *D);
void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
+ void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
void PrintTemplateParameters(const TemplateParameterList *Params,
@@ -334,7 +335,7 @@ void DeclPrinter::VisitDeclContext(DeclContext *DC, bool Indent) {
// FIXME: Need to be able to tell the DeclPrinter when
const char *Terminator = nullptr;
- if (isa<OMPThreadPrivateDecl>(*D))
+ if (isa<OMPThreadPrivateDecl>(*D) || isa<OMPDeclareReductionDecl>(*D))
Terminator = nullptr;
else if (isa<FunctionDecl>(*D) &&
cast<FunctionDecl>(*D)->isThisDeclarationADefinition())
@@ -1367,6 +1368,37 @@ void DeclPrinter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
}
}
+void DeclPrinter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
+ if (!D->isInvalidDecl()) {
+ Out << "#pragma omp declare reduction (";
+ if (D->getDeclName().getNameKind() == DeclarationName::CXXOperatorName) {
+ static const char *const OperatorNames[NUM_OVERLOADED_OPERATORS] = {
+ nullptr,
+#define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \
+ Spelling,
+#include "clang/Basic/OperatorKinds.def"
+ };
+ const char *OpName =
+ OperatorNames[D->getDeclName().getCXXOverloadedOperator()];
+ assert(OpName && "not an overloaded operator");
+ Out << OpName;
+ } else {
+ assert(D->getDeclName().isIdentifier());
+ D->printName(Out);
+ }
+ Out << " : ";
+ D->getType().print(Out, Policy);
+ Out << " : ";
+ D->getCombiner()->printPretty(Out, nullptr, Policy, 0);
+ Out << ")";
+ if (auto *Init = D->getInitializer()) {
+ Out << " initializer(";
+ Init->printPretty(Out, nullptr, Policy, 0);
+ Out << ")";
+ }
+ }
+}
+
void DeclPrinter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
D->getInit()->printPretty(Out, nullptr, Policy, Indentation);
}
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 68f76f54eda..71c94104ccc 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -20,6 +20,7 @@
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclOpenMP.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
@@ -66,8 +67,9 @@ static const DeclContext *getEffectiveDeclContext(const Decl *D) {
}
const DeclContext *DC = D->getDeclContext();
- if (const CapturedDecl *CD = dyn_cast<CapturedDecl>(DC))
- return getEffectiveDeclContext(CD);
+ if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC)) {
+ return getEffectiveDeclContext(cast<Decl>(DC));
+ }
if (const auto *VD = dyn_cast<VarDecl>(D))
if (VD->isExternC())
diff --git a/clang/lib/AST/MicrosoftMangle.cpp b/clang/lib/AST/MicrosoftMangle.cpp
index 930cf00d9e3..65b7905f962 100644
--- a/clang/lib/AST/MicrosoftMangle.cpp
+++ b/clang/lib/AST/MicrosoftMangle.cpp
@@ -19,6 +19,7 @@
#include "clang/AST/Decl.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclOpenMP.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/AST/Expr.h"
#include "clang/AST/ExprCXX.h"
@@ -58,8 +59,9 @@ static const DeclContext *getEffectiveDeclContext(const Decl *D) {
}
const DeclContext *DC = D->getDeclContext();
- if (const CapturedDecl *CD = dyn_cast<CapturedDecl>(DC))
- return getEffectiveDeclContext(CD);
+ if (isa<CapturedDecl>(DC) || isa<OMPDeclareReductionDecl>(DC)) {
+ return getEffectiveDeclContext(cast<Decl>(DC));
+ }
return DC;
}
diff --git a/clang/lib/Basic/OpenMPKinds.cpp b/clang/lib/Basic/OpenMPKinds.cpp
index ae509772f35..3b5bc56036b 100644
--- a/clang/lib/Basic/OpenMPKinds.cpp
+++ b/clang/lib/Basic/OpenMPKinds.cpp
@@ -554,6 +554,7 @@ bool clang::isAllowedClauseForDirective(OpenMPDirectiveKind DKind,
case OMPD_taskwait:
case OMPD_taskgroup:
case OMPD_cancellation_point:
+ case OMPD_declare_reduction:
break;
}
return false;
diff --git a/clang/lib/CodeGen/CGDecl.cpp b/clang/lib/CodeGen/CGDecl.cpp
index c218ca41a1d..36d20cca380 100644
--- a/clang/lib/CodeGen/CGDecl.cpp
+++ b/clang/lib/CodeGen/CGDecl.cpp
@@ -21,6 +21,7 @@
#include "clang/AST/CharUnits.h"
#include "clang/AST/Decl.h"
#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclOpenMP.h"
#include "clang/Basic/SourceManager.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/CodeGen/CGFunctionInfo.h"
@@ -118,6 +119,9 @@ void CodeGenFunction::EmitDecl(const Decl &D) {
return EmitVarDecl(VD);
}
+ case Decl::OMPDeclareReduction:
+ return CGM.EmitOMPDeclareReduction(cast<OMPDeclareReductionDecl>(&D));
+
case Decl::Typedef: // typedef int X;
case Decl::TypeAlias: { // using X = int; [C++0x]
const TypedefNameDecl &TD = cast<TypedefNameDecl>(D);
@@ -1862,3 +1866,7 @@ void CodeGenFunction::EmitParmDecl(const VarDecl &D, ParamValue Arg,
if (D.hasAttr<AnnotateAttr>())
EmitVarAnnotations(&D, DeclPtr.getPointer());
}
+
+void CodeGenModule::EmitOMPDeclareReduction(
+ const OMPDeclareReductionDecl * /*D*/) {}
+
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 7df90346571..e171abeacee 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -3796,6 +3796,10 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
break;
}
+ case Decl::OMPDeclareReduction:
+ EmitOMPDeclareReduction(cast<OMPDeclareReductionDecl>(D));
+ break;
+
default:
// Make sure we handled everything we should, every other kind is a
// non-top-level decl. FIXME: Would be nice to have an isTopLevelDeclKind
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index db2df793dbc..87183582e7d 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -21,6 +21,7 @@
#include "clang/AST/Attr.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/DeclObjC.h"
+#include "clang/AST/DeclOpenMP.h"
#include "clang/AST/GlobalDecl.h"
#include "clang/AST/Mangle.h"
#include "clang/Basic/ABI.h"
@@ -1110,6 +1111,9 @@ public:
/// \param D Threadprivate declaration.
void EmitOMPThreadPrivateDecl(const OMPThreadPrivateDecl *D);
+ /// \brief Emit a code for declare reduction construct.
+ void EmitOMPDeclareReduction(const OMPDeclareReductionDecl *D);
+
/// Returns whether we need bit sets attached to vtables.
bool NeedVTableBitSets();
diff --git a/clang/lib/Parse/ParseDecl.cpp b/clang/lib/Parse/ParseDecl.cpp
index ab6f3ccc2db..8e6f1ab652b 100644
--- a/clang/lib/Parse/ParseDecl.cpp
+++ b/clang/lib/Parse/ParseDecl.cpp
@@ -3644,13 +3644,11 @@ void Parser::ParseStructUnionBody(SourceLocation RecordLoc,
}
if (Tok.is(tok::annot_pragma_openmp)) {
- // Result can be ignored, because it must be always empty.
- auto Res = ParseOpenMPDeclarativeDirective();
- assert(!Res);
- // Silence possible warnings.
- (void)Res;
+ // There may be declared reduction operator inside structure/union.
+ (void)ParseOpenMPDeclarativeDirective(AS_public);
continue;
}
+
if (!Tok.is(tok::at)) {
auto CFieldCallback = [&](ParsingFieldDeclarator &FD) {
// Install the declarator into the current TagDecl.
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index 814234d96da..798284b3d39 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -2910,7 +2910,7 @@ Parser::DeclGroupPtrTy Parser::ParseCXXClassMemberDeclarationWithPragmas(
}
if (Tok.is(tok::annot_pragma_openmp))
- return ParseOpenMPDeclarativeDirective();
+ return ParseOpenMPDeclarativeDirective(AS);
// Parse all the comma separated declarators.
return ParseCXXClassMemberDeclaration(AS, AccessAttrs.getList());
diff --git a/clang/lib/Parse/ParseOpenMP.cpp b/clang/lib/Parse/ParseOpenMP.cpp
index d87abb60204..2d5afd6042d 100644
--- a/clang/lib/Parse/ParseOpenMP.cpp
+++ b/clang/lib/Parse/ParseOpenMP.cpp
@@ -30,9 +30,11 @@ namespace {
enum OpenMPDirectiveKindEx {
OMPD_cancellation = OMPD_unknown + 1,
OMPD_data,
+ OMPD_declare,
OMPD_enter,
OMPD_exit,
OMPD_point,
+ OMPD_reduction,
OMPD_target_enter,
OMPD_target_exit
};
@@ -48,9 +50,11 @@ static unsigned getOpenMPDirectiveKindEx(StringRef S) {
return llvm::StringSwitch<unsigned>(S)
.Case("cancellation", OMPD_cancellation)
.Case("data", OMPD_data)
+ .Case("declare", OMPD_declare)
.Case("enter", OMPD_enter)
.Case("exit", OMPD_exit)
.Case("point", OMPD_point)
+ .Case("reduction", OMPD_reduction)
.Default(OMPD_unknown);
}
@@ -60,6 +64,7 @@ static OpenMPDirectiveKind ParseOpenMPDirectiveKind(Parser &P) {
// TODO: add other combined directives in topological order.
static const unsigned F[][3] = {
{ OMPD_cancellation, OMPD_point, OMPD_cancellation_point },
+ { OMPD_declare, OMPD_reduction, OMPD_declare_reduction },
{ OMPD_target, OMPD_data, OMPD_target_data },
{ OMPD_target, OMPD_enter, OMPD_target_enter },
{ OMPD_target, OMPD_exit, OMPD_target_exit },
@@ -73,6 +78,7 @@ static OpenMPDirectiveKind ParseOpenMPDirectiveKind(Parser &P) {
{ OMPD_target, OMPD_parallel, OMPD_target_parallel },
{ OMPD_target_parallel, OMPD_for, OMPD_target_parallel_for }
};
+ enum { CancellationPoint = 0, DeclareReduction = 1, TargetData = 2 };
auto Tok = P.getCurToken();
unsigned DKind =
Tok.isAnnotation()
@@ -98,16 +104,226 @@ static OpenMPDirectiveKind ParseOpenMPDirectiveKind(Parser &P) {
DKind = F[i][2];
}
}
- return DKind <= OMPD_unknown ? static_cast<OpenMPDirectiveKind>(DKind)
- : OMPD_unknown;
+ return DKind < OMPD_unknown ? static_cast<OpenMPDirectiveKind>(DKind)
+ : OMPD_unknown;
+}
+
+static DeclarationName parseOpenMPReductionId(Parser &P) {
+ const Token Tok = P.getCurToken();
+ Sema &Actions = P.getActions();
+ OverloadedOperatorKind OOK = OO_None;
+ switch (Tok.getKind()) {
+ case tok::plus: // '+'
+ OOK = OO_Plus;
+ break;
+ case tok::minus: // '-'
+ OOK = OO_Minus;
+ break;
+ case tok::star: // '*'
+ OOK = OO_Star;
+ break;
+ case tok::amp: // '&'
+ OOK = OO_Amp;
+ break;
+ case tok::pipe: // '|'
+ OOK = OO_Pipe;
+ break;
+ case tok::caret: // '^'
+ OOK = OO_Caret;
+ break;
+ case tok::ampamp: // '&&'
+ OOK = OO_AmpAmp;
+ break;
+ case tok::pipepipe: // '||'
+ OOK = OO_PipePipe;
+ break;
+ case tok::identifier: // identifier
+ break;
+ default:
+ P.Diag(Tok.getLocation(), diag::err_omp_expected_reduction_identifier);
+ P.SkipUntil(tok::colon, tok::r_paren, tok::annot_pragma_openmp_end,
+ Parser::StopBeforeMatch);
+ return DeclarationName();
+ }
+ P.ConsumeToken();
+ auto &DeclNames = Actions.getASTContext().DeclarationNames;
+ return OOK == OO_None ? DeclNames.getIdentifier(Tok.getIdentifierInfo())
+ : DeclNames.getCXXOperatorName(OOK);
+}
+
+/// \brief Parse 'omp declare reduction' construct.
+///
+/// declare-reduction-directive:
+/// annot_pragma_openmp 'declare' 'reduction'
+/// '(' <reduction_id> ':' <type> {',' <type>} ':' <expression> ')'
+/// ['initializer' '(' ('omp_priv' '=' <expression>)|<function_call> ')']
+/// annot_pragma_openmp_end
+/// <reduction_id> is either a base language identifier or one of the following
+/// operators: '+', '-', '*', '&', '|', '^', '&&' and '||'.
+///
+Parser::DeclGroupPtrTy
+Parser::ParseOpenMPDeclareReductionDirective(AccessSpecifier AS) {
+ // Parse '('.
+ BalancedDelimiterTracker T(*this, tok::l_paren, tok::annot_pragma_openmp_end);
+ if (T.expectAndConsume(diag::err_expected_lparen_after,
+ getOpenMPDirectiveName(OMPD_declare_reduction))) {
+ SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
+ return DeclGroupPtrTy();
+ }
+
+ DeclarationName Name = parseOpenMPReductionId(*this);
+ if (Name.isEmpty() && Tok.is(tok::annot_pragma_openmp_end))
+ return DeclGroupPtrTy();
+
+ // Consume ':'.
+ bool IsCorrect = !ExpectAndConsume(tok::colon);
+
+ if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
+ return DeclGroupPtrTy();
+
+ if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end)) {
+ Diag(Tok.getLocation(), diag::err_expected_type);
+ IsCorrect = false;
+ }
+
+ if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
+ return DeclGroupPtrTy();
+
+ SmallVector<std::pair<QualType, SourceLocation>, 8> ReductionTypes;
+ // Parse list of types until ':' token.
+ do {
+ ColonProtectionRAIIObject ColonRAII(*this);
+ SourceRange Range;
+ TypeResult TR = ParseTypeName(&Range, Declarator::PrototypeContext, AS);
+ if (TR.isUsable()) {
+ auto ReductionType =
+ Actions.ActOnOpenMPDeclareReductionType(Range.getBegin(), TR);
+ if (!ReductionType.isNull()) {
+ ReductionTypes.push_back(
+ std::make_pair(ReductionType, Range.getBegin()));
+ }
+ } else {
+ SkipUntil(tok::comma, tok::colon, tok::annot_pragma_openmp_end,
+ StopBeforeMatch);
+ }
+
+ if (Tok.is(tok::colon) || Tok.is(tok::annot_pragma_openmp_end))
+ break;
+
+ // Consume ','.
+ if (ExpectAndConsume(tok::comma)) {
+ IsCorrect = false;
+ if (Tok.is(tok::annot_pragma_openmp_end)) {
+ Diag(Tok.getLocation(), diag::err_expected_type);
+ return DeclGroupPtrTy();
+ }
+ }
+ } while (Tok.isNot(tok::annot_pragma_openmp_end));
+
+ if (ReductionTypes.empty()) {
+ SkipUntil(tok::annot_pragma_openmp_end, StopBeforeMatch);
+ return DeclGroupPtrTy();
+ }
+
+ if (!IsCorrect && Tok.is(tok::annot_pragma_openmp_end))
+ return DeclGroupPtrTy();
+
+ // Consume ':'.
+ if (ExpectAndConsume(tok::colon))
+ IsCorrect = false;
+
+ if (Tok.is(tok::annot_pragma_openmp_end)) {
+ Diag(Tok.getLocation(), diag::err_expected_expression);
+ return DeclGroupPtrTy();
+ }
+
+ DeclGroupPtrTy DRD = Actions.ActOnOpenMPDeclareReductionDirectiveStart(
+ getCurScope(), Actions.getCurLexicalContext(), Name, ReductionTypes, AS);
+
+ // Parse <combiner> expression and then parse initializer if any for each
+ // correct type.
+ unsigned I = 0, E = ReductionTypes.size();
+ for (auto *D : DRD.get()) {
+ TentativeParsingAction TPA(*this);
+ ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
+ Scope::OpenMPDirectiveScope);
+ // Parse <combiner> expression.
+ Actions.ActOnOpenMPDeclareReductionCombinerStart(getCurScope(), D);
+ ExprResult CombinerResult =
+ Actions.ActOnFinishFullExpr(ParseAssignmentExpression().get(),
+ D->getLocation(), /*DiscardedValue=*/true);
+ Actions.ActOnOpenMPDeclareReductionCombinerEnd(D, CombinerResult.get());
+
+ if (CombinerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
+ Tok.isNot(tok::annot_pragma_openmp_end)) {
+ TPA.Commit();
+ IsCorrect = false;
+ break;
+ }
+ IsCorrect = !T.consumeClose() && IsCorrect && CombinerResult.isUsable();
+ ExprResult InitializerResult;
+ if (Tok.isNot(tok::annot_pragma_openmp_end)) {
+ // Parse <initializer> expression.
+ if (Tok.is(tok::identifier) &&
+ Tok.getIdentifierInfo()->isStr("initializer"))
+ ConsumeToken();
+ else {
+ Diag(Tok.getLocation(), diag::err_expected) << "'initializer'";
+ TPA.Commit();
+ IsCorrect = false;
+ break;
+ }
+ // Parse '('.
+ BalancedDelimiterTracker T(*this, tok::l_paren,
+ tok::annot_pragma_openmp_end);
+ IsCorrect =
+ !T.expectAndConsume(diag::err_expected_lparen_after, "initializer") &&
+ IsCorrect;
+ if (Tok.isNot(tok::annot_pragma_openmp_end)) {
+ ParseScope OMPDRScope(this, Scope::FnScope | Scope::DeclScope |
+ Scope::OpenMPDirectiveScope);
+ // Parse expression.
+ Actions.ActOnOpenMPDeclareReductionInitializerStart(getCurScope(), D);
+ InitializerResult = Actions.ActOnFinishFullExpr(
+ ParseAssignmentExpression().get(), D->getLocation(),
+ /*DiscardedValue=*/true);
+ Actions.ActOnOpenMPDeclareReductionInitializerEnd(
+ D, InitializerResult.get());
+ if (InitializerResult.isInvalid() && Tok.isNot(tok::r_paren) &&
+ Tok.isNot(tok::annot_pragma_openmp_end)) {
+ TPA.Commit();
+ IsCorrect = false;
+ break;
+ }
+ IsCorrect =
+ !T.consumeClose() && IsCorrect && !InitializerResult.isInvalid();
+ }
+ }
+
+ ++I;
+ // Revert parsing if not the last type, otherwise accept it, we're done with
+ // parsing.
+ if (I != E)
+ TPA.Revert();
+ else
+ TPA.Commit();
+ }
+ return Actions.ActOnOpenMPDeclareReductionDirectiveEnd(getCurScope(), DRD,
+ IsCorrect);
}
/// \brief Parsing of declarative OpenMP directives.
///
/// threadprivate-directive:
/// annot_pragma_openmp 'threadprivate' simple-variable-list
+/// annot_pragma_openmp_end
+///
+/// declare-reduction-directive:
+/// annot_pragma_openmp 'declare' 'reduction' [...]
+/// annot_pragma_openmp_end
///
-Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirective() {
+Parser::DeclGroupPtrTy
+Parser::ParseOpenMPDeclarativeDirective(AccessSpecifier AS) {
assert(Tok.is(tok::annot_pragma_openmp) && "Not an OpenMP directive!");
ParenBraceBracketBalancer BalancerRAIIObj(*this);
@@ -131,6 +347,22 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirective() {
return Actions.ActOnOpenMPThreadprivateDirective(Loc, Identifiers);
}
break;
+ case OMPD_declare_reduction:
+ ConsumeToken();
+ if (auto Res = ParseOpenMPDeclareReductionDirective(AS)) {
+ // The last seen token is annot_pragma_openmp_end - need to check for
+ // extra tokens.
+ if (Tok.isNot(tok::annot_pragma_openmp_end)) {
+ Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
+ << getOpenMPDirectiveName(OMPD_declare_reduction);
+ while (Tok.isNot(tok::annot_pragma_openmp_end))
+ ConsumeAnyToken();
+ }
+ // Skip the last annot_pragma_openmp_end.
+ ConsumeToken();
+ return Res;
+ }
+ break;
case OMPD_unknown:
Diag(Tok, diag::err_omp_unknown_directive);
break;
@@ -170,7 +402,9 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirective() {
<< getOpenMPDirectiveName(DKind);
break;
}
- SkipUntil(tok::annot_pragma_openmp_end);
+ while (Tok.isNot(tok::annot_pragma_openmp_end))
+ ConsumeAnyToken();
+ ConsumeAnyToken();
return nullptr;
}
@@ -180,6 +414,12 @@ Parser::DeclGroupPtrTy Parser::ParseOpenMPDeclarativeDirective() {
/// annot_pragma_openmp 'threadprivate' simple-variable-list
/// annot_pragma_openmp_end
///
+/// declare-reduction-directive:
+/// annot_pragma_openmp 'declare' 'reduction' '(' <reduction_id> ':'
+/// <type> {',' <type>} ':' <expression> ')' ['initializer' '('
+/// ('omp_priv' '=' <expression>|<function_call>) ')']
+/// annot_pragma_openmp_end
+///
/// executable-directive:
/// annot_pragma_openmp 'parallel' | 'simd' | 'for' | 'sections' |
/// 'section' | 'single' | 'master' | 'critical' [ '(' <name> ')' ] |
@@ -231,6 +471,22 @@ StmtResult Parser::ParseOpenMPDeclarativeOrExecutableDirective(
}
SkipUntil(tok::annot_pragma_openmp_end);
break;
+ case OMPD_declare_reduction:
+ ConsumeToken();
+ if (auto Res = ParseOpenMPDeclareReductionDirective(/*AS=*/AS_none)) {
+ // The last seen token is annot_pragma_openmp_end - need to check for
+ // extra tokens.
+ if (Tok.isNot(tok::annot_pragma_openmp_end)) {
+ Diag(Tok, diag::warn_omp_extra_tokens_at_eol)
+ << getOpenMPDirectiveName(OMPD_declare_reduction);
+ while (Tok.isNot(tok::annot_pragma_openmp_end))
+ ConsumeAnyToken();
+ }
+ ConsumeAnyToken();
+ Directive = Actions.ActOnDeclStmt(Res, Loc, Tok.getLocation());
+ } else
+ SkipUntil(tok::annot_pragma_openmp_end);
+ break;
case OMPD_flush:
if (PP.LookAhead(0).is(tok::l_paren)) {
FlushHasClause = true;
diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
index 149765ca813..9ef57cb5384 100644
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -659,7 +659,7 @@ Parser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs,
HandlePragmaOpenCLExtension();
return nullptr;
case tok::annot_pragma_openmp:
- return ParseOpenMPDeclarativeDirective();
+ return ParseOpenMPDeclarativeDirective(/*AS=*/AS_none);
case tok::annot_pragma_ms_pointers_to_members:
HandlePragmaMSPointersToMembers();
return nullptr;
diff --git a/clang/lib/Sema/ScopeInfo.cpp b/clang/lib/Sema/ScopeInfo.cpp
index cbd7ef7abb4..ef9eed65ebc 100644
--- a/clang/lib/Sema/ScopeInfo.cpp
+++ b/clang/lib/Sema/ScopeInfo.cpp
@@ -28,6 +28,7 @@ void FunctionScopeInfo::Clear() {
HasBranchIntoScope = false;
HasIndirectGoto = false;
HasDroppedStmt = false;
+ HasOMPDeclareReductionCombiner = false;
ObjCShouldCallSuper = false;
ObjCIsDesignatedInit = false;
ObjCWarnForNoDesignatedInitChain = false;
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index f7fe506f4ae..f20b4d06287 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -5640,7 +5640,7 @@ static bool isIncompleteDeclExternC(Sema &S, const T *D) {
static bool shouldConsiderLinkage(const VarDecl *VD) {
const DeclContext *DC = VD->getDeclContext()->getRedeclContext();
- if (DC->isFunctionOrMethod())
+ if (DC->isFunctionOrMethod() || isa<OMPDeclareReductionDecl>(DC))
return VD->hasExternalStorage();
if (DC->isFileContext())
return true;
@@ -5651,7 +5651,8 @@ static bool shouldConsiderLinkage(const VarDecl *VD) {
static bool shouldConsiderLinkage(const FunctionDecl *FD) {
const DeclContext *DC = FD->getDeclContext()->getRedeclContext();
- if (DC->isFileContext() || DC->isFunctionOrMethod())
+ if (DC->isFileContext() || DC->isFunctionOrMethod() ||
+ isa<OMPDeclareReductionDecl>(DC))
return true;
if (DC->isRecord())
return false;
diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 0ca5555e1da..b644ff215cd 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -376,6 +376,19 @@ bool Sema::DiagnoseUseOfDecl(NamedDecl *D, SourceLocation Loc,
DeduceReturnType(FD, Loc))
return true;
}
+
+ // [OpenMP 4.0], 2.15 declare reduction Directive, Restrictions
+ // Only the variables omp_in and omp_out are allowed in the combiner.
+ // Only the variables omp_priv and omp_orig are allowed in the
+ // initializer-clause.
+ auto *DRD = dyn_cast<OMPDeclareReductionDecl>(CurContext);
+ if (LangOpts.OpenMP && DRD && !CurContext->containsDecl(D) &&
+ isa<VarDecl>(D)) {
+ Diag(Loc, diag::err_omp_wrong_var_in_declare_reduction)
+ << getCurFunction()->HasOMPDeclareReductionCombiner;
+ Diag(D->getLocation(), diag::note_entity_declared_at) << D;
+ return true;
+ }
DiagnoseAvailabilityOfDecl(*this, D, Loc, UnknownObjCClass,
ObjCPropertyAccess);
diff --git a/clang/lib/Sema/SemaLookup.cpp b/clang/lib/Sema/SemaLookup.cpp
index 4baf6053359..00379336251 100644
--- a/clang/lib/Sema/SemaLookup.cpp
+++ b/clang/lib/Sema/SemaLookup.cpp
@@ -280,6 +280,10 @@ static inline unsigned getIDNS(Sema::LookupNameKind NameKind,
IDNS = Decl::IDNS_ObjCProtocol;
break;
+ case Sema::LookupOMPReductionName:
+ IDNS = Decl::IDNS_OMPReduction;
+ break;
+
case Sema::LookupAnyName:
IDNS = Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Member
| Decl::IDNS_Using | Decl::IDNS_Namespace | Decl::IDNS_ObjCProtocol
@@ -2015,6 +2019,10 @@ bool Sema::LookupQualifiedName(LookupResult &R, DeclContext *LookupCtx,
BaseCallback = &LookupAnyMember;
break;
+ case LookupOMPReductionName:
+ BaseCallback = &CXXRecordDecl::FindOMPReductionMember;
+ break;
+
case LookupUsingDeclName:
// This lookup is for redeclarations only.
diff --git a/clang/lib/Sema/SemaOpenMP.cpp b/clang/lib/Sema/SemaOpenMP.cpp
index 50148b5187c..ffac56b1ddd 100644
--- a/clang/lib/Sema/SemaOpenMP.cpp
+++ b/clang/lib/Sema/SemaOpenMP.cpp
@@ -21,6 +21,7 @@
#include "clang/AST/StmtCXX.h"
#include "clang/AST/StmtOpenMP.h"
#include "clang/AST/StmtVisitor.h"
+#include "clang/AST/TypeOrdering.h"
#include "clang/Basic/OpenMPKinds.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
@@ -1698,6 +1699,7 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
case OMPD_flush:
case OMPD_target_enter_data:
case OMPD_target_exit_data:
+ case OMPD_declare_reduction:
llvm_unreachable("OpenMP Directive is not allowed");
case OMPD_unknown:
llvm_unreachable("Unknown OpenMP directive");
@@ -3139,6 +3141,7 @@ StmtResult Sema::ActOnOpenMPExecutableDirective(
EndLoc, VarsWithInheritedDSA);
break;
case OMPD_threadprivate:
+ case OMPD_declare_reduction:
llvm_unreachable("OpenMP Directive is not allowed");
case OMPD_unknown:
llvm_unreachable("Unknown OpenMP directive");
@@ -9584,6 +9587,235 @@ Sema::ActOnOpenMPMapClause(OpenMPMapClauseKind MapTypeModifier,
MapLoc);
}
+QualType Sema::ActOnOpenMPDeclareReductionType(SourceLocation TyLoc,
+ TypeResult ParsedType) {
+ assert(ParsedType.isUsable());
+
+ QualType ReductionType = GetTypeFromParser(ParsedType.get());
+ if (ReductionType.isNull())
+ return QualType();
+
+ // [OpenMP 4.0], 2.15 declare reduction Directive, Restrictions, C\C++
+ // A type name in a declare reduction directive cannot be a function type, an
+ // array type, a reference type, or a type qualified with const, volatile or
+ // restrict.
+ if (ReductionType.hasQualifiers()) {
+ Diag(TyLoc, diag::err_omp_reduction_wrong_type) << 0;
+ return QualType();
+ }
+
+ if (ReductionType->isFunctionType()) {
+ Diag(TyLoc, diag::err_omp_reduction_wrong_type) << 1;
+ return QualType();
+ }
+ if (ReductionType->isReferenceType()) {
+ Diag(TyLoc, diag::err_omp_reduction_wrong_type) << 2;
+ return QualType();
+ }
+ if (ReductionType->isArrayType()) {
+ Diag(TyLoc, diag::err_omp_reduction_wrong_type) << 3;
+ return QualType();
+ }
+ return ReductionType;
+}
+
+Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveStart(
+ Scope *S, DeclContext *DC, DeclarationName Name,
+ ArrayRef<std::pair<QualType, SourceLocation>> ReductionTypes,
+ AccessSpecifier AS, Decl *PrevDeclInScope) {
+ SmallVector<Decl *, 8> Decls;
+ Decls.reserve(ReductionTypes.size());
+
+ LookupResult Lookup(*this, Name, SourceLocation(), LookupOMPReductionName,
+ ForRedeclaration);
+ // [OpenMP 4.0], 2.15 declare reduction Directive, Restrictions
+ // A reduction-identifier may not be re-declared in the current scope for the
+ // same type or for a type that is compatible according to the base language
+ // rules.
+ llvm::DenseMap<QualType, SourceLocation> PreviousRedeclTypes;
+ OMPDeclareReductionDecl *PrevDRD = nullptr;
+ bool InCompoundScope = true;
+ if (S != nullptr) {
+ // Find previous declaration with the same name not referenced in other
+ // declarations.
+ FunctionScopeInfo *ParentFn = getEnclosingFunction();
+ InCompoundScope =
+ (ParentFn != nullptr) && !ParentFn->CompoundScopes.empty();
+ LookupName(Lookup, S);
+ FilterLookupForScope(Lookup, DC, S, /*ConsiderLinkage=*/false,
+ /*AllowInlineNamespace=*/false);
+ llvm::DenseMap<OMPDeclareReductionDecl *, bool> UsedAsPrevious;
+ auto Filter = Lookup.makeFilter();
+ while (Filter.hasNext()) {
+ auto *PrevDecl = cast<OMPDeclareReductionDecl>(Filter.next());
+ if (InCompoundScope) {
+ auto I = UsedAsPrevious.find(PrevDecl);
+ if (I == UsedAsPrevious.end())
+ UsedAsPrevious[PrevDecl] = false;
+ if (auto *D = PrevDecl->getPrevDeclInScope())
+ UsedAsPrevious[D] = true;
+ }
+ PreviousRedeclTypes[PrevDecl->getType().getCanonicalType()] =
+ PrevDecl->getLocation();
+ }
+ Filter.done();
+ if (InCompoundScope) {
+ for (auto &PrevData : UsedAsPrevious) {
+ if (!PrevData.second) {
+ PrevDRD = PrevData.first;
+ break;
+ }
+ }
+ }
+ } else if (PrevDeclInScope != nullptr) {
+ auto *PrevDRDInScope = PrevDRD =
+ cast<OMPDeclareReductionDecl>(PrevDeclInScope);
+ do {
+ PreviousRedeclTypes[PrevDRDInScope->getType().getCanonicalType()] =
+ PrevDRDInScope->getLocation();
+ PrevDRDInScope = PrevDRDInScope->getPrevDeclInScope();
+ } while (PrevDRDInScope != nullptr);
+ }
+ for (auto &TyData : ReductionTypes) {
+ auto I = PreviousRedeclTypes.find(TyData.first.getCanonicalType());
+ bool Invalid = false;
+ if (I != PreviousRedeclTypes.end()) {
+ Diag(TyData.second, diag::err_omp_declare_reduction_redefinition)
+ << TyData.first;
+ Diag(I->second, diag::note_previous_definition);
+ Invalid = true;
+ }
+ PreviousRedeclTypes[TyData.first.getCanonicalType()] = TyData.second;
+ auto *DRD = OMPDeclareReductionDecl::Create(Context, DC, TyData.second,
+ Name, TyData.first, PrevDRD);
+ DC->addDecl(DRD);
+ DRD->setAccess(AS);
+ Decls.push_back(DRD);
+ if (Invalid)
+ DRD->setInvalidDecl();
+ else
+ PrevDRD = DRD;
+ }
+
+ return DeclGroupPtrTy::make(
+ DeclGroupRef::Create(Context, Decls.begin(), Decls.size()));
+}
+
+void Sema::ActOnOpenMPDeclareReductionCombinerStart(Scope *S, Decl *D) {
+ auto *DRD = cast<OMPDeclareReductionDecl>(D);
+
+ // Enter new function scope.
+ PushFunctionScope();
+ getCurFunction()->setHasBranchProtectedScope();
+ getCurFunction()->setHasOMPDeclareReductionCombiner();
+
+ if (S != nullptr)
+ PushDeclContext(S, DRD);
+ else
+ CurContext = DRD;
+
+ PushExpressionEvaluationContext(PotentiallyEvaluated);
+
+ QualType ReductionType = DRD->getType();
+ // Create 'T omp_in;' implicit param.
+ auto *OmpInParm =
+ ImplicitParamDecl::Create(Context, DRD, D->getLocation(),
+ &Context.Idents.get("omp_in"), ReductionType);
+ // Create 'T* omp_parm;T omp_out;'. All references to 'omp_out' will
+ // be replaced by '*omp_parm' during codegen. This required because 'omp_out'
+ // uses semantics of argument handles by value, but it should be passed by
+ // reference. C lang does not support references, so pass all parameters as
+ // pointers.
+ // Create 'T omp_out;' variable.
+ auto *OmpOutParm =
+ buildVarDecl(*this, D->getLocation(), ReductionType, "omp_out");
+ if (S != nullptr) {
+ PushOnScopeChains(OmpInParm, S);
+ PushOnScopeChains(OmpOutParm, S);
+ } else {
+ DRD->addDecl(OmpInParm);
+ DRD->addDecl(OmpOutParm);
+ }
+}
+
+void Sema::ActOnOpenMPDeclareReductionCombinerEnd(Decl *D, Expr *Combiner) {
+ auto *DRD = cast<OMPDeclareReductionDecl>(D);
+ DiscardCleanupsInEvaluationContext();
+ PopExpressionEvaluationContext();
+
+ PopDeclContext();
+ PopFunctionScopeInfo();
+
+ if (Combiner != nullptr)
+ DRD->setCombiner(Combiner);
+ else
+ DRD->setInvalidDecl();
+}
+
+void Sema::ActOnOpenMPDeclareReductionInitializerStart(Scope *S, Decl *D) {
+ auto *DRD = cast<OMPDeclareReductionDecl>(D);
+
+ // Enter new function scope.
+ PushFunctionScope();
+ getCurFunction()->setHasBranchProtectedScope();
+
+ if (S != nullptr)
+ PushDeclContext(S, DRD);
+ else
+ CurContext = DRD;
+
+ PushExpressionEvaluationContext(PotentiallyEvaluated);
+
+ QualType ReductionType = DRD->getType();
+ // Create 'T omp_orig;' implicit param.
+ auto *OmpOrigParm =
+ ImplicitParamDecl::Create(Context, DRD, D->getLocation(),
+ &Context.Idents.get("omp_orig"), ReductionType);
+ // Create 'T* omp_parm;T omp_priv;'. All references to 'omp_priv' will
+ // be replaced by '*omp_parm' during codegen. This required because 'omp_priv'
+ // uses semantics of argument handles by value, but it should be passed by
+ // reference. C lang does not support references, so pass all parameters as
+ // pointers.
+ // Create 'T omp_priv;' variable.
+ auto *OmpPrivParm =
+ buildVarDecl(*this, D->getLocation(), ReductionType, "omp_priv");
+ if (S != nullptr) {
+ PushOnScopeChains(OmpPrivParm, S);
+ PushOnScopeChains(OmpOrigParm, S);
+ } else {
+ DRD->addDecl(OmpPrivParm);
+ DRD->addDecl(OmpOrigParm);
+ }
+}
+
+void Sema::ActOnOpenMPDeclareReductionInitializerEnd(Decl *D,
+ Expr *Initializer) {
+ auto *DRD = cast<OMPDeclareReductionDecl>(D);
+ DiscardCleanupsInEvaluationContext();
+ PopExpressionEvaluationContext();
+
+ PopDeclContext();
+ PopFunctionScopeInfo();
+
+ if (Initializer != nullptr)
+ DRD->setInitializer(Initializer);
+ else
+ DRD->setInvalidDecl();
+}
+
+Sema::DeclGroupPtrTy Sema::ActOnOpenMPDeclareReductionDirectiveEnd(
+ Scope *S, DeclGroupPtrTy DeclReductions, bool IsValid) {
+ for (auto *D : DeclReductions.get()) {
+ if (IsValid) {
+ auto *DRD = cast<OMPDeclareReductionDecl>(D);
+ if (S != nullptr)
+ PushOnScopeChains(DRD, S, /*AddToContext=*/false);
+ } else
+ D->setInvalidDecl();
+ }
+ return DeclReductions;
+}
+
OMPClause *Sema::ActOnOpenMPNumTeamsClause(Expr *NumTeams,
SourceLocation StartLoc,
SourceLocation LParenLoc,
diff --git a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
index af93cde68c1..c021b34a4e5 100644
--- a/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -2503,6 +2503,81 @@ Decl *TemplateDeclInstantiator::VisitOMPThreadPrivateDecl(
return TD;
}
+Decl *TemplateDeclInstantiator::VisitOMPDeclareReductionDecl(
+ OMPDeclareReductionDecl *D) {
+ // Instantiate type and check if it is allowed.
+ QualType SubstReductionType = SemaRef.ActOnOpenMPDeclareReductionType(
+ D->getLocation(),
+ ParsedType::make(SemaRef.SubstType(D->getType(), TemplateArgs,
+ D->getLocation(), DeclarationName())));
+ if (SubstReductionType.isNull())
+ return nullptr;
+ bool IsCorrect = !SubstReductionType.isNull();
+ // Create instantiated copy.
+ std::pair<QualType, SourceLocation> ReductionTypes[] = {
+ std::make_pair(SubstReductionType, D->getLocation())};
+ auto *PrevDeclInScope = D->getPrevDeclInScope();
+ if (PrevDeclInScope && !PrevDeclInScope->isInvalidDecl()) {
+ PrevDeclInScope = cast<OMPDeclareReductionDecl>(
+ SemaRef.CurrentInstantiationScope->findInstantiationOf(PrevDeclInScope)
+ ->get<Decl *>());
+ }
+ auto DRD = SemaRef.ActOnOpenMPDeclareReductionDirectiveStart(
+ /*S=*/nullptr, Owner, D->getDeclName(), ReductionTypes, D->getAccess(),
+ PrevDeclInScope);
+ auto *NewDRD = cast<OMPDeclareReductionDecl>(DRD.get().getSingleDecl());
+ if (isDeclWithinFunction(NewDRD))
+ SemaRef.CurrentInstantiationScope->InstantiatedLocal(D, NewDRD);
+ Expr *SubstCombiner = nullptr;
+ Expr *SubstInitializer = nullptr;
+ // Combiners instantiation sequence.
+ if (D->getCombiner()) {
+ SemaRef.ActOnOpenMPDeclareReductionCombinerStart(
+ /*S=*/nullptr, NewDRD);
+ const char *Names[] = {"omp_in", "omp_out"};
+ for (auto &Name : Names) {
+ DeclarationName DN(&SemaRef.Context.Idents.get(Name));
+ auto OldLookup = D->lookup(DN);
+ auto Lookup = NewDRD->lookup(DN);
+ if (!OldLookup.empty() && !Lookup.empty()) {
+ assert(Lookup.size() == 1 && OldLookup.size() == 1);
+ SemaRef.CurrentInstantiationScope->InstantiatedLocal(OldLookup.front(),
+ Lookup.front());
+ }
+ }
+ SubstCombiner = SemaRef.SubstExpr(D->getCombiner(), TemplateArgs).get();
+ SemaRef.ActOnOpenMPDeclareReductionCombinerEnd(NewDRD, SubstCombiner);
+ // Initializers instantiation sequence.
+ if (D->getInitializer()) {
+ SemaRef.ActOnOpenMPDeclareReductionInitializerStart(
+ /*S=*/nullptr, NewDRD);
+ const char *Names[] = {"omp_orig", "omp_priv"};
+ for (auto &Name : Names) {
+ DeclarationName DN(&SemaRef.Context.Idents.get(Name));
+ auto OldLookup = D->lookup(DN);
+ auto Lookup = NewDRD->lookup(DN);
+ if (!OldLookup.empty() && !Lookup.empty()) {
+ assert(Lookup.size() == 1 && OldLookup.size() == 1);
+ SemaRef.CurrentInstantiationScope->InstantiatedLocal(
+ OldLookup.front(), Lookup.front());
+ }
+ }
+ SubstInitializer =
+ SemaRef.SubstExpr(D->getInitializer(), TemplateArgs).get();
+ SemaRef.ActOnOpenMPDeclareReductionInitializerEnd(NewDRD,
+ SubstInitializer);
+ }
+ IsCorrect = IsCorrect && SubstCombiner &&
+ (!D->getInitializer() || SubstInitializer);
+ } else
+ IsCorrect = false;
+
+ (void)SemaRef.ActOnOpenMPDeclareReductionDirectiveEnd(/*S=*/nullptr, DRD,
+ IsCorrect);
+
+ return NewDRD;
+}
+
Decl *TemplateDeclInstantiator::VisitOMPCapturedExprDecl(
OMPCapturedExprDecl * /*D*/) {
llvm_unreachable("Should not be met in templates");
diff --git a/clang/lib/Serialization/ASTCommon.cpp b/clang/lib/Serialization/ASTCommon.cpp
index aba39231327..c83c664d2a9 100644
--- a/clang/lib/Serialization/ASTCommon.cpp
+++ b/clang/lib/Serialization/ASTCommon.cpp
@@ -332,6 +332,7 @@ bool serialization::isRedeclarableDeclKind(unsigned Kind) {
case Decl::Import:
case Decl::OMPThreadPrivate:
case Decl::OMPCapturedExpr:
+ case Decl::OMPDeclareReduction:
case Decl::BuiltinTemplate:
return false;
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index 213f2aa0ecf..2389d671d42 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -356,6 +356,7 @@ namespace clang {
void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
+ void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
/// We've merged the definition \p MergedDef into the existing definition
@@ -2394,6 +2395,15 @@ void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
D->setVars(Vars);
}
+void ASTDeclReader::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
+ VisitNamedDecl(D);
+ D->setLocation(Reader.ReadSourceLocation(F, Record, Idx));
+ D->setCombiner(Reader.ReadExpr(F));
+ D->setInitializer(Reader.ReadExpr(F));
+ D->PrevDeclInScope = Reader.ReadDeclID(F, Record, Idx);
+ D->setType(Reader.readType(F, Record, Idx));
+}
+
void ASTDeclReader::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
VisitVarDecl(D);
}
@@ -2449,7 +2459,8 @@ static bool isConsumerInterestedIn(Decl *D, bool HasBody) {
isa<ImportDecl>(D) ||
isa<PragmaCommentDecl>(D) ||
isa<PragmaDetectMismatchDecl>(D) ||
- isa<OMPThreadPrivateDecl>(D))
+ isa<OMPThreadPrivateDecl>(D) ||
+ isa<OMPDeclareReductionDecl>(D))
return true;
if (VarDecl *Var = dyn_cast<VarDecl>(D))
return Var->isFileVarDecl() &&
@@ -3363,6 +3374,9 @@ Decl *ASTReader::ReadDeclRecord(DeclID ID) {
case DECL_OMP_THREADPRIVATE:
D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record[Idx++]);
break;
+ case DECL_OMP_DECLARE_REDUCTION:
+ D = OMPDeclareReductionDecl::CreateDeserialized(Context, ID);
+ break;
case DECL_OMP_CAPTUREDEXPR:
D = OMPCapturedExprDecl::CreateDeserialized(Context, ID);
break;
diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
index ee693bf2fc7..88b74a4b4c5 100644
--- a/clang/lib/Serialization/ASTWriterDecl.cpp
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -133,6 +133,7 @@ namespace clang {
void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
+ void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
/// Add an Objective-C type parameter list to the given record.
@@ -1653,6 +1654,16 @@ void ASTDeclWriter::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
Code = serialization::DECL_OMP_THREADPRIVATE;
}
+void ASTDeclWriter::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
+ VisitNamedDecl(D);
+ Writer.AddSourceLocation(D->getLocStart(), Record);
+ Writer.AddStmt(D->getCombiner());
+ Writer.AddStmt(D->getInitializer());
+ Writer.AddDeclRef(D->getPrevDeclInScope(), Record);
+ Writer.AddTypeRef(D->getType(), Record);
+ Code = serialization::DECL_OMP_DECLARE_REDUCTION;
+}
+
void ASTDeclWriter::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
VisitVarDecl(D);
Code = serialization::DECL_OMP_CAPTUREDEXPR;
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