Qiskit / qiskit / 9845964198

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Commit Message

Use rust gates for ConsolidateBlocks (#12704)

* Use rust gates for ConsolidateBlocks

This commit moves to use rust gates for the ConsolidateBlocks transpiler
pass. Instead of generating the unitary matrices for the gates in a 2q
block Python side and passing that list to a rust function this commit
switches to passing a list of DAGOpNodes to the rust and then generating
the matrices inside the rust function directly. This is similar to what
was done in #12650 for Optimize1qGatesDecomposition. Besides being faster
to get the matrix for standard gates, it also reduces the eager
construction of Python gate objects which was a significant source of
overhead after #12459. To that end this builds on the thread of work in
the two PRs #12692 and #12701 which changed the access patterns for
other passes to minimize eager gate object construction.

* Add rust filter function for DAGCircuit.collect_2q_runs()

* Update crates/accelerate/src/convert_2q_block_matrix.rs

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Co-authored-by: John Lapeyre <jlapeyre@users.noreply.github.com>

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86 of 94 new or added lines in 4 files covered. (91.49%)

34 existing lines in 3 files now uncovered.

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