[Bug target/109140] ICE (during RTL pass: internal compiler error: in extract_insn, at recog.cc:2791) when building qemu on sparc64-unknown-linux-gnu with -march=niagara4

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109140

--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Mikael Pettersson from comment #7)
> With -O2 -ftree-vectorize -mcpu=niagara4 a bisect between 9.5.0 (good) and
> 10.4.0 (bad) found
> 
> 6271dd984d7f920d4fb17ad37af6a1f8e6b796dc is the first bad commit
> commit 6271dd984d7f920d4fb17ad37af6a1f8e6b796dc
> Author: Wilco Dijkstra <wdijkstr@arm.com>
> Date:   Wed Nov 20 16:29:23 2019 +0000
> 
>     PR85678: Change default to -fno-common
> 
> And sure enough, with -O2 -ftree-vectorize -fno-common -mcpu=niagara4
> gcc-9.5.0 also ICEs.

Right still latent from before that commit ...