Fix ApplyLayout with empty layout
#14606
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error.
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alexanderivrii
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd)
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mergify bot
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd)
mergify bot
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd)
This was referenced Jun 16, 2025
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd) Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
github-merge-queue bot
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It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd) Co-authored-by: Jake Lishman <jake.lishman@ibm.com>
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Aug 15, 2025
* Fix `ApplyLayout` with empty layout (#14606) It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for `ApplyLayout` on a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error. (cherry picked from commit d0630fd) * Use PassManager for empty layout tests. * Use dummy pass for test_empty_post_layout. Co-authored-by: Jake Lishman <jake.lishman@ibm.com> * Ignore lint. --------- Co-authored-by: Jake Lishman <jake.lishman@ibm.com> Co-authored-by: Kevin Hartman <kevin@hart.mn>
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Summary
It's unlikely to ever be useful, but strictly there still is a well-defined behaviour for
ApplyLayouton a zero-qubit circuit and backend. Previously, the pass errored out falsely asserting user error.Details and comments