================
@@ -955,31 +960,69 @@ class OMPLoopBasedDirective : public
OMPExecutableDirective {
}
};
-/// The base class for all loop transformation directives.
-class OMPLoopTransformationDirective : public OMPLoopBasedDirective {
+/// Common class of data shared between
+/// OMPCanonicalLoopNestTransformationDirective and
+/// OMPCanonicalLoopSequenceTransformationDirective
+class OMPLoopTransformationDirective {
friend class ASTStmtReader;
- /// Number of loops generated by this loop transformation.
- unsigned NumGeneratedLoops = 0;
+ /// Number of (top-level) generated loops.
+ /// This value is 1 for most transformations as they only map one loop nest
+ /// into another.
+ /// Some loop transformations (like a non-partial 'unroll') may not generate
+ /// a loop nest, so this would be 0.
+ /// Some loop transformations (like 'fuse' with looprange and 'split') may
+ /// generate more than one loop nest, so the value would be >= 1.
+ unsigned NumGeneratedLoops = 1;
+
+ /// We need this because we cannot easily make OMPLoopTransformationDirective
+ /// a proper Stmt.
+ Stmt *S;
----------------
alexey-bataev wrote:
```suggestion
Stmt *S = nullptr;
```
https://github.com/llvm/llvm-project/pull/139293
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