[OPENMP] Initial support for 'depend' clause (4.0).

Parsing and sema analysis (without support for array sections in arguments) for 'depend' clause (used in 'task' directive, OpenMP 4.0).

llvm-svn: 240409

2 files changed, 26 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index c15f6b0b552..f64d856a628 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -1785,6 +1785,9 @@ OMPClause *OMPClauseReader::readClause() {
   case OMPC_flush:
     C = OMPFlushClause::CreateEmpty(Context, Record[Idx++]);
     break;
+  case OMPC_depend:
+    C = OMPDependClause::CreateEmpty(Context, Record[Idx++]);
+    break;
   }
   Visit(C);
   C->setLocStart(Reader->ReadSourceLocation(Record, Idx));
@@ -2049,6 +2052,19 @@ void OMPClauseReader::VisitOMPFlushClause(OMPFlushClause *C) {
   C->setVarRefs(Vars);
 }
 
+void OMPClauseReader::VisitOMPDependClause(OMPDependClause *C) {
+  C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
+  C->setDependencyKind(static_cast<OpenMPDependClauseKind>(Record[Idx++]));
+  C->setDependencyLoc(Reader->ReadSourceLocation(Record, Idx));
+  C->setColonLoc(Reader->ReadSourceLocation(Record, Idx));
+  unsigned NumVars = C->varlist_size();
+  SmallVector<Expr *, 16> Vars;
+  Vars.reserve(NumVars);
+  for (unsigned i = 0; i != NumVars; ++i)
+    Vars.push_back(Reader->Reader.ReadSubExpr());
+  C->setVarRefs(Vars);
+}
+
 //===----------------------------------------------------------------------===//
 // OpenMP Directives.
 //===----------------------------------------------------------------------===//
diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
index a461d3f6639..0f35f0ce8a3 100644
--- a/clang/lib/Serialization/ASTWriterStmt.cpp
+++ b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -1906,6 +1906,16 @@ void OMPClauseWriter::VisitOMPFlushClause(OMPFlushClause *C) {
     Writer->Writer.AddStmt(VE);
 }
 
+void OMPClauseWriter::VisitOMPDependClause(OMPDependClause *C) {
+  Record.push_back(C->varlist_size());
+  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
+  Record.push_back(C->getDependencyKind());
+  Writer->Writer.AddSourceLocation(C->getDependencyLoc(), Record);
+  Writer->Writer.AddSourceLocation(C->getColonLoc(), Record);
+  for (auto *VE : C->varlists())
+    Writer->Writer.AddStmt(VE);
+}
+
 //===----------------------------------------------------------------------===//
 // OpenMP Directives.
 //===----------------------------------------------------------------------===//