[Bug tree-optimization/85168] [7 Regression] ICE in tree-ssa-coalesce.c: SSA corruption: Unable to coalesce ssa_names which are marked as MUST COALESCE when -O2 is used

[ivo.raisr at oracle dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85168

--- Comment #7 from Ivo Raisr <ivo.raisr at oracle dot com> ---
Fix backported to 7.3.0 correctly compiles the original (huge) source module.
Thank you, Richard.