Jonas Paulsson a9c5a98f81 [SystemZ] Improvement in tryRxSBG().
Only allow replacements of nodes that have a single user. This is better as
simple instructions (e.g. XGRK) are one cycle faster, and it helps in cases
where both inputs share a common node.

Review: Ulrich Weigand
2023-01-19 10:43:52 -06:00
..
2022-12-19 14:17:21 +01:00