tree a6e67f345a98f8e64c2d582d2a80cc04b2831822
parent 3e9aee08806e18d5c94abf280cf56542970d8f11
author Sergei Barannikov <barannikov88@gmail.com> 1684990254 +0300
committer Copybara-Service <copybara-worker@google.com> 1685872046 -0700

[Hexagon] Check if register is non-null before calling subregs_inclusive

D151036 adds an assertions that prohibits iterating over sub- and
super-registers of a null register. This is already the case when
iterating over register units of a null register, and worked by
accident for sub- and super-registers.

Reviewed By: kparzysz

Differential Revision: https://reviews.llvm.org/D151406

GitOrigin-RevId: c37e6a269ef3df0cde217feca945edfa8fcf68fe