tldr; I’ve sent out a patch to remove the special case parsing of func operations.
This was noted in the past when FuncOp was moved out of the builtin dialect > 1 month ago, but the special case parsing of func operations is being removed. What this means concretely is that in .mlir files you will need to explicitly namespace func operations (outside of func.func regions). More concretely, you will need to change things like:
func @foo() {
scf.if ... {
call @bar()
}
return
}
to
func.func @foo() {
scf.if ... {
func.call @bar()
}
return
}
I’ll let the patch sit up for a ~two weeks or so, but if you haven’t updated since the first few notices please try to proactively update. As always I will take care of updating in-tree usages, of which nearly all have already been taken care of. Upstream MLIR had ~800 files to update, and nearly all were able to be updated automatically with a simple regex find/replace: ^( *)func → $1func.func .
– River