[OPENMP 4.1] Parsing/sema analysis for extended format of 'if' clause.

OpenMP 4.1 added special 'directive-name-modifier' to the 'if' clause.
Format of 'if' clause is as follows:
```
if([ directive-name-modifier :] scalar-logical-expression)
```

The restriction rules are also changed.
1. If any 'if' clause on the directive includes a 'directive-name-modifier' then all 'if' clauses on the directive must include a 'directive-name-modifier'.
2. At most one 'if' clause without a 'directive-name-modifier' can appear on the directive.
3. At most one 'if' clause with some particular 'directive-name-modifier' can appear on the directive.

'directive-name-modifier' is important for combined directives and allows to separate conditions in 'if' clause for simple sub-directives in combined directive. This 'directive-name-modifier' identifies the sub-directive to which this 'if' clause must be applied.

llvm-svn: 246747

1 files changed, 3 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTReaderStmt.cpp b/clang/lib/Serialization/ASTReaderStmt.cpp
index 2d6f5e0db7f..9446db842f3 100644
--- a/clang/lib/Serialization/ASTReaderStmt.cpp
+++ b/clang/lib/Serialization/ASTReaderStmt.cpp
@@ -1812,6 +1812,9 @@ OMPClause *OMPClauseReader::readClause() {
 }
 
 void OMPClauseReader::VisitOMPIfClause(OMPIfClause *C) {
+  C->setNameModifier(static_cast<OpenMPDirectiveKind>(Record[Idx++]));
+  C->setNameModifierLoc(Reader->ReadSourceLocation(Record, Idx));
+  C->setColonLoc(Reader->ReadSourceLocation(Record, Idx));
   C->setCondition(Reader->Reader.ReadSubExpr());
   C->setLParenLoc(Reader->ReadSourceLocation(Record, Idx));
 }