https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92303
--- Comment #3 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot
Uni-Bielefeld.DE> ---
> --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
> There's no RA commits in that range, further bisection is needed.
Done now. I've found r272742 to be the culprit:
2019-06-27 Richard Biener <rguent...@suse.de>
* tree-ssa-sccvn.c (vn_reference_lookup_3): Encode valueized RHS.
At r272740,
cc1 -fpreprocessed ultrasp12.i -mptr64 -mstack-bias -mno-v8plus -quiet -m64
-mcpu=ultrasparc -mvis -O2 -o ultrasp12.s
takes less than a second, at r272740 the compilation never terminates.
