1// RUN: mlir-opt -canonicalize="test-convergence" %s | FileCheck %s 2 3pdl.pattern @operation_op : benefit(1) { 4 %root = operation "foo.op" 5 rewrite %root { 6 // CHECK: operation "bar.unused" 7 %unused_rewrite = operation "bar.unused" 8 erase %root 9 } 10} 11