Qiskit / qiskit / 17163252070

88%

Build Type

push

github

Committed by web-flow

Commit Message

Fix VF2 layout allocation with idle qubits (#14938)

The two VF2 passes failed to allocate completely idle qubits into the
`Layout` objects they returned.  While the mapping doesn't really _mean_
much, it's important for the rest of the pipeline that a `Layout` object
is a complete layout for the incoming virtuals, even if some of the
choices are arbitrary.

This typically appeared to users via calls to
`TranspileLayout.initial_index_layout(filter_ancillas=True)` bugging
out, but really anything inspecting the `Layout` before that was
susceptible.

Run Details

10 of 10 new or added lines in 3 files covered. (100.0%)

20 existing lines in 4 files now uncovered.

89862 of 101625 relevant lines covered (88.43%)

496910.99 hits per line