1 files changed, 53 insertions, 0 deletions
diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index 3e09896da21..15e289f6f8e 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -1903,6 +1903,15 @@ OMPClause *OMPClauseReader::readClause() {
                                  NumComponents);
     break;
   }
+  case OMPC_from: {
+    unsigned NumVars = Record[Idx++];
+    unsigned NumDeclarations = Record[Idx++];
+    unsigned NumLists = Record[Idx++];
+    unsigned NumComponents = Record[Idx++];
+    C = OMPFromClause::CreateEmpty(Context, NumVars, NumDeclarations, NumLists,
+                                   NumComponents);
+    break;
+  }
   }
   Visit(C);
   C->setLocStart(Reader->ReadSourceLocation(Record, Idx));
@@ -2376,6 +2385,50 @@ void OMPClauseReader::VisitOMPToClause(OMPToClause *C) {
   C->setComponents(Components, ListSizes);
 }
 
+void OMPClauseReader::VisitOMPFromClause(OMPFromClause *C) {
+  C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
+  auto NumVars = C->varlist_size();
+  auto UniqueDecls = C->getUniqueDeclarationsNum();
+  auto TotalLists = C->getTotalComponentListNum();
+  auto TotalComponents = C->getTotalComponentsNum();
+
+  SmallVector<Expr *, 16> Vars;
+  Vars.reserve(NumVars);
+  for (unsigned i = 0; i != NumVars; ++i)
+    Vars.push_back(Reader->Reader.ReadSubExpr());
+  C->setVarRefs(Vars);
+
+  SmallVector<ValueDecl *, 16> Decls;
+  Decls.reserve(UniqueDecls);
+  for (unsigned i = 0; i < UniqueDecls; ++i)
+    Decls.push_back(
+        Reader->Reader.ReadDeclAs<ValueDecl>(Reader->F, Record, Idx));
+  C->setUniqueDecls(Decls);
+
+  SmallVector<unsigned, 16> ListsPerDecl;
+  ListsPerDecl.reserve(UniqueDecls);
+  for (unsigned i = 0; i < UniqueDecls; ++i)
+    ListsPerDecl.push_back(Record[Idx++]);
+  C->setDeclNumLists(ListsPerDecl);
+
+  SmallVector<unsigned, 32> ListSizes;
+  ListSizes.reserve(TotalLists);
+  for (unsigned i = 0; i < TotalLists; ++i)
+    ListSizes.push_back(Record[Idx++]);
+  C->setComponentListSizes(ListSizes);
+
+  SmallVector<OMPClauseMappableExprCommon::MappableComponent, 32> Components;
+  Components.reserve(TotalComponents);
+  for (unsigned i = 0; i < TotalComponents; ++i) {
+    Expr *AssociatedExpr = Reader->Reader.ReadSubExpr();
+    ValueDecl *AssociatedDecl =
+        Reader->Reader.ReadDeclAs<ValueDecl>(Reader->F, Record, Idx);
+    Components.push_back(OMPClauseMappableExprCommon::MappableComponent(
+        AssociatedExpr, AssociatedDecl));
+  }
+  C->setComponents(Components, ListSizes);
+}
+
 //===----------------------------------------------------------------------===//
 // OpenMP Directives.
 //===----------------------------------------------------------------------===//