https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69648
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
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CC| |ienkovich at gcc dot gnu.org
--- Comment #6 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Bernd Schmidt from comment #5)
> Yeah, my current theory is that r87 is spilled at the start, then the spill
> reg is inherited in all the existing uses of it, and lra thinks it can avoid
> storing it to memory.
>
> Then we add a new reference to it for the pinsrw insn, and that isn't
> initialized.
>
> I seem to recall that this is a general problem with the idea of using a
> pseudo for the PIC register, so surely there must have been some attempt to
> address this when x86 was converted. So far I can't find anything though.
> Uroš - any pointers?
Let's ask Ilya.
