qiskit/releasenotes/notes/1.3/optimize-1q-gates-decomposi...

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features_transpiler:
- |
Added a new method :meth:`.DAGCircuit.control_flow_ops` which provides a fast
path to get all the :class:`.DAGOpNode` in a :class:`.DAGCircuit` that
contain a :class:`.ControlFlowOp`. This was possible before using the
:meth:`.DAGCircuit.op_nodes` method and passing the :class:`.ControlFlowOp` class
as a filter, but this new function will perform the operation faster.
- |
Ported the entirety of the :class:`.Optimize1qGatesDecomposition` transpiler
pass to Rust. This improves the runtime performance of the pass between 5x
to 10x.