tree ef2a461e61fac5712fe70f60679f1f0708bb7a5e
parent 18d9f28f0df9f95570f233f47a8570c865706fe4
author Adam Langley <agl@google.com> 1497052320 -0700
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1497052858 +0000

ppc64le delocate: avoid r0 as a base register.

On POWER, r0 is wired to zero in some argument positions of some
instructions. The base register for a load is one of them. Thus, if
rewriting a load to r0, we cannot use r0 to store the base address.

This could be more efficient, but loading to r0 appears to be very rare
so I'm not going to worry about it for now.

Change-Id: I14dac96ba4c0380b166a7667b0cba918f1ae25ec
Reviewed-on: https://boringssl-review.googlesource.com/17065
Commit-Queue: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>