Qiskit / qiskit / 17259836956

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Commit Message

Add UnitarySynthesis transpiler pass to C API (#14740)

* Add UnitarySynthesis transpiler pass to C API

This commit adds a standalone transpiler pass function to the C API for
running the UnitarySynthesis transpiler pass. This pass mutates a dag
in place and updates the provided circuit pointer with the newly
generated circuit. Right now the pass doesn't support >= 3q unitaries,
targets that would rely on the XX decomposer, or have the unitary
synthesis plugin interface that exists in Python. The first two could be
fixed if/when those synthesis algorithms are ported to C, but the plugin
interface will need some thought to think about how to expose that via
the C FFI, it will certainly be different/distinct from the Python
interface but some discovery and design will be needed to come up with a
reasonable interface to make unitary synthesis pluggable from C.

Fixes #14451

* Apply suggestions from code review

Co-authored-by: Eli Arbel <46826214+eliarbel@users.noreply.github.com>

* Update docs

* Remove swap from gates to synthesize

* Fix lint

---------

Co-authored-by: Eli Arbel <46826214+eliarbel@users.noreply.github.com>

Run Details

116 of 120 new or added lines in 1 file covered. (96.67%)

9 existing lines in 3 files now uncovered.

90240 of 102061 relevant lines covered (88.42%)

486387.92 hits per line