================
@@ -14219,27 +14262,320 @@ bool SemaOpenMP::checkTransformableLoopNest(
return false;
},
[&OriginalInits](OMPLoopBasedDirective *Transform) {
- Stmt *DependentPreInits;
- if (auto *Dir = dyn_cast<OMPTileDirective>(Transform))
- DependentPreInits = Dir->getPreInits();
- else if (auto *Dir = dyn_cast<OMPStripeDirective>(Transform))
- DependentPreInits = Dir->getPreInits();
- else if (auto *Dir = dyn_cast<OMPUnrollDirective>(Transform))
- DependentPreInits = Dir->getPreInits();
- else if (auto *Dir = dyn_cast<OMPReverseDirective>(Transform))
- DependentPreInits = Dir->getPreInits();
- else if (auto *Dir = dyn_cast<OMPInterchangeDirective>(Transform))
- DependentPreInits = Dir->getPreInits();
- else
- llvm_unreachable("Unhandled loop transformation");
-
- appendFlattenedStmtList(OriginalInits.back(), DependentPreInits);
+ updatePreInits(Transform, OriginalInits);
});
assert(OriginalInits.back().empty() && "No preinit after innermost loop");
OriginalInits.pop_back();
return Result;
}
+/// Counts the total number of nested loops, including the outermost loop (the
+/// original loop). PRECONDITION of this visitor is that it must be invoked
from
+/// the original loop to be analyzed. The traversal stops for Decl's and
+/// Expr's given that they may contain inner loops that must not be counted.
+///
+/// Example AST structure for the code:
+///
+/// int main() {
+/// #pragma omp fuse
+/// {
+/// for (int i = 0; i < 100; i++) { <-- Outer loop
+/// []() {
+/// for(int j = 0; j < 100; j++) {} <-- NOT A LOOP
+/// };
+/// for(int j = 0; j < 5; ++j) {} <-- Inner loop
+/// }
+/// for (int r = 0; i < 100; i++) { <-- Outer loop
+/// struct LocalClass {
+/// void bar() {
+/// for(int j = 0; j < 100; j++) {} <-- NOT A LOOP
+/// }
+/// };
+/// for(int k = 0; k < 10; ++k) {} <-- Inner loop
+/// {x = 5; for(k = 0; k < 10; ++k) x += k; x}; <-- NOT A LOOP
+/// }
+/// }
+/// }
+/// Result: Loop 'i' contains 2 loops, Loop 'r' also contains 2 loops
+class NestedLoopCounterVisitor : public DynamicRecursiveASTVisitor {
----------------
alexey-bataev wrote:
```suggestion
class NestedLoopCounterVisitor final: public DynamicRecursiveASTVisitor {
```
https://github.com/llvm/llvm-project/pull/139293
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
