[Clang][OpenMP][LoopTransformations] Implement "#pragma omp fuse" loop transformation directive and "looprange" clause (#139293)

This change implements the fuse directive, `#pragma omp fuse`, as specified in the OpenMP 6.0, along with the `looprange` clause in clang.

This change also adds minimal stubs so flang keeps compiling (a full implementation in flang of this directive is still pending).

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Co-authored-by: Roger Ferrer Ibanez <roger.ferrer@bsc.es>

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index 09859da..cdf95ba 100644
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -7882,6 +7882,14 @@ void OMPClauseWriter::VisitOMPPartialClause(OMPPartialClause *C) {
   Record.AddSourceLocation(C->getLParenLoc());
 }
 
+void OMPClauseWriter::VisitOMPLoopRangeClause(OMPLoopRangeClause *C) {
+  Record.AddStmt(C->getFirst());
+  Record.AddStmt(C->getCount());
+  Record.AddSourceLocation(C->getLParenLoc());
+  Record.AddSourceLocation(C->getFirstLoc());
+  Record.AddSourceLocation(C->getCountLoc());
+}
+
 void OMPClauseWriter::VisitOMPAllocatorClause(OMPAllocatorClause *C) {
   Record.AddStmt(C->getAllocator());
   Record.AddSourceLocation(C->getLParenLoc());