[Bug testsuite/91258] [10 regression] g++.dg/ubsan/vla-1.C and gcc.dg/strlenopt-70.c fail starting with r273783

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91258

--- Comment #5 from seurer at gcc dot gnu.org ---
Created attachment 46629
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46629&action=edit
diff of assembler output before and after r273783