Re: Recent TCG commit breaks PPC

[BALATON Zoltan]

On Sat, 16 Jan 2021, Richard Henderson wrote:
> On 1/16/21 4:38 AM, BALATON Zoltan wrote:
> > Commit 8fe35e0444be (tcg/optimize: Use tcg_constant_internal with constant
> > folding) seems to break PPC emulation for me:
> >
> > Thread 3 "qemu-system-ppc" received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 0x7ffff51e7700 (LWP 22636)]
> > 0x0000555555afd4ee in ts_are_copies (ts2=0x7fff8c008f90, ts1=0x7fff8c001510) at
> > ../tcg/optimize.c:68
> > 68        return ts_info(ts)->next_copy != ts;
>
> I don't replicate this assertion.
>
> Interestingly, I replicate a different assertion:
>
> qemu-system-ppc: ../qemu/tcg/tcg.c:1210: tcg_temp_alloc: Assertion `n < 512'
> failed.
> Aborted (core dumped)
>
> What compiler version(s) are you guys using?

I'm getting this with gcc 8.4.0

Regards,
BALATON Zoltan