[coreboot-gerrit] Change in coreboot[master]: xcompile: Disable null pointer optimizations

[Jacob Garber (Code Review)]

Jacob Garber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/38289 )

Change subject: xcompile: Disable null pointer optimizations
......................................................................

Patch Set 2:
> Patch Set 1: Code-Review-1
>
> Please keep the optimisations enabled where they have not been proven to cause problems.
>
> AFAIR removing strict-aliasing creates poor code around MMIO write operations.

Alright, I've only disabled the null pointer optimization. coreinfo still seems to work with the other optimizations enabled, but I think more testing should still be done (perhaps LTO should be labeled as experimental for now).