[Bug middle-end/108657] [13 Regression] csmith: possible wrong checksum with -O3 and -ftrivial-auto-var-init=zero

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108657

--- Comment #21 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 54472
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=54472&action=edit
gcc13-pr108657.patch

Untested fix.  This one fixes the DSE bug which caused the .DEFERRED_INIT calls
not to be DSEd.  Though, I wonder if we still don't have a bug in FRE...