[OPENMP 4.1] Initial support for 'simdlen' clause.

Add parsing/sema analysis for 'simdlen' clause in simd directives. Also add check that if both 'safelen' and 'simdlen' clauses are specified, the value of 'simdlen' parameter is less than the value of 'safelen' parameter.

llvm-svn: 245692

2 files changed, 13 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index 18b1051d177..4a76ca0bc7d 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -1716,6 +1716,9 @@ OMPClause *OMPClauseReader::readClause() {
   case OMPC_safelen:
     C = new (Context) OMPSafelenClause();
     break;
+  case OMPC_simdlen:
+    C = new (Context) OMPSimdlenClause();
+    break;
   case OMPC_collapse:
     C = new (Context) OMPCollapseClause();
     break;
@@ -1819,6 +1822,11 @@ void OMPClauseReader::VisitOMPSafelenClause(OMPSafelenClause *C) {
   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
 }
 
+void OMPClauseReader::VisitOMPSimdlenClause(OMPSimdlenClause *C) {
+  C->setSimdlen(Reader->Reader.ReadSubExpr());
+  C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
+}
+
 void OMPClauseReader::VisitOMPCollapseClause(OMPCollapseClause *C) {
   C->setNumForLoops(Reader->Reader.ReadSubExpr());
   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
diff --git a/clang/lib/Serialization/ASTWriterStmt.cpp b/clang/lib/Serialization/ASTWriterStmt.cpp
index c91db223d96..6bf5b7d3057 100644
--- a/clang/lib/Serialization/ASTWriterStmt.cpp
+++ b/clang/lib/Serialization/ASTWriterStmt.cpp
@@ -1737,6 +1737,11 @@ void OMPClauseWriter::VisitOMPSafelenClause(OMPSafelenClause *C) {
   Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
 }
 
+void OMPClauseWriter::VisitOMPSimdlenClause(OMPSimdlenClause *C) {
+  Writer->Writer.AddStmt(C->getSimdlen());
+  Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);
+}
+
 void OMPClauseWriter::VisitOMPCollapseClause(OMPCollapseClause *C) {
   Writer->Writer.AddStmt(C->getNumForLoops());
   Writer->Writer.AddSourceLocation(C->getLParenLoc(), Record);