Insert signature-converted blocks into a region with a parent operation.

This keeps the IR valid and consistent as it is expected that each block should have a valid parent region/operation. Previously, converted blocks were kept floating without a valid parent region.

PiperOrigin-RevId: 285821687

1 files changed, 5 insertions, 1 deletions

diff --git a/mlir/include/mlir/IR/Block.h b/mlir/include/mlir/IR/Block.h
index a36ecdd9e37..2ef7bf392f4 100644
--- a/mlir/include/mlir/IR/Block.h
+++ b/mlir/include/mlir/IR/Block.h
@@ -56,10 +56,14 @@ public:
   /// Return if this block is the entry block in the parent region.
   bool isEntryBlock();
 
-  /// Insert this block (which must not already be in a function) right before
+  /// Insert this block (which must not already be in a region) right before
   /// the specified block.
   void insertBefore(Block *block);
 
+  /// Unlink this block from its current region and insert it right before the
+  /// specific block.
+  void moveBefore(Block *block);
+
   /// Unlink this Block from its parent region and delete it.
   void erase();