[Bug inline-asm/100628] New: fftw segfaults with gcc-9

[philip at balister dot org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100628

            Bug ID: 100628
           Summary: fftw segfaults with gcc-9
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: inline-asm
          Assignee: unassigned at gcc dot gnu.org
          Reporter: philip at balister dot org
  Target Milestone: ---

Debian has this bug:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943396#31

I've duplicated this in the dunfell release of the Yocto Project using the
qemuarm machine. Using gdb, I also concluded the code doubled the value of r3
leading to the segfault.

Let me know what I can do to collect more information. This is has worked in
later gcc's and earlier ones. Hunting through gcc commit logs hasn't got me
anywhere.