[Bug tree-optimization/70138] [6 Regression] wrong code at -O3 on x86_64-linux-gnu

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70138

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
As a proof of concept, I've changed in the debugger the last stmt in that bb
to:
tmp.5_53 = stmp_c_10.10_67;
and called update_stmt on it, and the result is the test passing.