On Fri, Jan 7, 2022 at 9:12 AM Gary Oblock via Gcc <gcc@gcc.gnu.org> wrote: > > An optimization flag that I recently added is being > set to zero in push_cfun (which after a couple of > levels of calls cl_optimization_restore to this.) > > The flag defined like this: > > finterleaving-index-32-bits > Common Var(flag_interleaving_index_32_bits) Init(0) Optimization > Structure reorganization optimization, instance interleaving. > > Note, I'm working around this but l'd really like > to not have to do so therefore I'm wondering if somebody > could explain what's happening and what I'd need > to do instead?
Did you rebuild all of GCC after adding the option? Note that when you look at the option from LTO and from within an IPA pass then you have to use opt_for_fn (..) since the "global" option at link time will be not set (unless you specify it again at link time), it will be only present on the functions of the compile TU it was set globally. > > Thanks, > > Gary > > > CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is > for the sole use of the intended recipient(s) and contains information that > is confidential and proprietary to Ampere Computing or its subsidiaries. It > is to be used solely for the purpose of furthering the parties' business > relationship. Any unauthorized review, copying, or distribution of this email > (or any attachments thereto) is strictly prohibited. If you are not the > intended recipient, please contact the sender immediately and permanently > delete the original and any copies of this email and any attachments thereto.
