[Mlir-commits] [mlir] [mlir][emitc] Add a structured for operation (PR #68206)

[Simon Camphausen]

================
@@ -37,6 +37,106 @@ struct SCFToEmitCPass : public impl::SCFToEmitCBase<SCFToEmitCPass> {
   void runOnOperation() override;
 };
 
+// Lower scf::for to emitc::for, implementing return values using
+// emitc::variable's updated within loop body.
+struct ForLowering : public OpRewritePattern<ForOp> {
+  using OpRewritePattern<ForOp>::OpRewritePattern;
+
+  LogicalResult matchAndRewrite(ForOp forOp,
+                                PatternRewriter &rewriter) const override;
+};
+
+// Create an uninitialized emitc::variable op for each result of given op.
----------------
simon-camp wrote:

```suggestion
// Create an uninitialized emitc::variable op for each result of the given op.
```

https://github.com/llvm/llvm-project/pull/68206