6403e1b12a
In the transform dialect, a transform IR handle may be pointing to a payload IR operation that is an ancestor of another payload IR operation pointed to by another handle. If such a "parent" handle is consumed by a transformation, this indicates that the associated operation is likely rewritten, which in turn means that the "child" handle may now be associated with a dangling pointer or a pointer to a different operation than originally. Add a handle invalidation mechanism to guard against such situations by reporting errors at runtime. Reviewed By: springerm Differential Revision: https://reviews.llvm.org/D127480
Multi-Level Intermediate Representation
See https://mlir.llvm.org/ for more information.