This patch adds more precise side effects to the current ops with memory
effects, allowing us to determine which OpOperand/OpResult/BlockArgument
the
operation reads or writes, rather than just recording the reading and
writing
of values. This allows for convenient use of precise side effects to
achieve
analysis and optimization.
Related discussions:
https://discourse.llvm.org/t/rfc-add-operandindex-to-sideeffect-instance/79243
Introduce a new Transform dialect extension that uses IRDL op
definitions as matcher descriptors. IRDL allows one to essentially
define additional op constraits to be verified and, unlike PDL, does not
assume rewriting will happen. Leverage IRDL verification capability to
filter out ops that match an IRDL definition without actually
registering the corresponding operation with the system.
