[Bug tree-optimization/93745] [8/9/10 Regression] Redundant store not eliminated with intermediate instruction

[glisse at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93745

--- Comment #8 from Marc Glisse <glisse at gcc dot gnu.org> ---
(In reply to Martin Sebor from comment #7)
> But regardless of what language might have even looser rules than C/C++ in
> this area, it would seem like a rather unfortunate design limitation for GCC
> not to be able to analyze and optimize C/C++ code as well as other compilers
> can because it supports languages others don't (LLVM supports most of the
> languages GCC does).

LLVM seems to miscompile the testcase from
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69776#c8 , which may explain why
it is able to optimize in more cases.