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Clean up squin gate generation #564

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Merged
merged 6 commits into from
Oct 27, 2025
Merged

Clean up squin gate generation #564

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20ee0cf
Clean up squin gate generation
cduck Oct 22, 2025
e20864f
Merge branch 'main' into cduck/clean-gates
johnzl-777 Oct 23, 2025
eee3cda
Restore H
cduck Oct 23, 2025
9da3dcf
Fix tests
cduck Oct 23, 2025
b41346e
Merge branch 'main' into cduck/clean-gates
johnzl-777 Oct 27, 2025
e5094a9
remove old inaccurate comments after test fixes
johnzl-777 Oct 27, 2025
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38 changes: 25 additions & 13 deletions src/bloqade/squin/rewrite/U3_to_clifford.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,14 @@ class Sdag(ir.Statement):
pass


class SqrtXdag(ir.Statement):
pass


class SqrtYdag(ir.Statement):
pass


# (theta, phi, lam)
U3_HALF_PI_ANGLE_TO_GATES: dict[
tuple[int, int, int], list[type[ir.Statement]] | list[None]
Expand All @@ -27,21 +35,21 @@ class Sdag(ir.Statement):
(1, 0, 1): [gate.stmts.S, gate.stmts.SqrtY],
(1, 0, 2): [gate.stmts.H],
(1, 0, 3): [Sdag, gate.stmts.SqrtY],
(1, 1, 0): [gate.stmts.SqrtY, gate.stmts.S],
(1, 1, 1): [gate.stmts.S, gate.stmts.SqrtY, gate.stmts.S],
(1, 1, 2): [gate.stmts.Z, gate.stmts.SqrtY, gate.stmts.S],
(1, 1, 3): [Sdag, gate.stmts.SqrtY, gate.stmts.S],
(1, 2, 0): [gate.stmts.SqrtY, gate.stmts.Z],
(1, 2, 1): [gate.stmts.S, gate.stmts.SqrtY, gate.stmts.Z],
(1, 2, 2): [gate.stmts.Z, gate.stmts.SqrtY, gate.stmts.Z],
(1, 2, 3): [Sdag, gate.stmts.SqrtY, gate.stmts.Z],
(1, 3, 0): [gate.stmts.SqrtY, Sdag],
(1, 3, 1): [gate.stmts.S, gate.stmts.SqrtY, Sdag],
(1, 3, 2): [gate.stmts.Z, gate.stmts.SqrtY, Sdag],
(1, 3, 3): [Sdag, gate.stmts.SqrtY, Sdag],
(1, 1, 0): [gate.stmts.S, SqrtXdag],
(1, 1, 1): [gate.stmts.Z, SqrtXdag],
(1, 1, 2): [Sdag, SqrtXdag],
(1, 1, 3): [SqrtXdag],
(1, 2, 0): [gate.stmts.Z, SqrtYdag],
(1, 2, 1): [Sdag, SqrtYdag],
(1, 2, 2): [SqrtYdag],
(1, 2, 3): [gate.stmts.S, SqrtYdag],
(1, 3, 0): [Sdag, gate.stmts.SqrtX],
(1, 3, 1): [gate.stmts.SqrtX],
(1, 3, 2): [gate.stmts.S, gate.stmts.SqrtX],
(1, 3, 3): [gate.stmts.Z, gate.stmts.SqrtX],
(2, 0, 0): [gate.stmts.Y],
(2, 0, 1): [gate.stmts.S, gate.stmts.Y],
(2, 0, 2): [gate.stmts.Z, gate.stmts.Y],
(2, 0, 2): [gate.stmts.X],
(2, 0, 3): [Sdag, gate.stmts.Y],
}

Expand Down Expand Up @@ -106,6 +114,10 @@ def rewrite_U3(self, node: gate.stmts.U3) -> RewriteResult:
for gate_stmt in gates:
if gate_stmt is Sdag:
new_stmt = gate.stmts.S(adjoint=True, qubits=node.qubits)
elif gate_stmt is SqrtXdag:
new_stmt = gate.stmts.SqrtX(adjoint=True, qubits=node.qubits)
elif gate_stmt is SqrtYdag:
new_stmt = gate.stmts.SqrtY(adjoint=True, qubits=node.qubits)
else:
new_stmt = gate_stmt(qubits=node.qubits)
new_stmt.insert_before(node)
Expand Down
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