[Bug tree-optimization/126904] backward threader: no path-sensitive load CSE (value numbering?)

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126904

--- Comment #16 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
(In reply to Aldy Hernandez from comment #13)
> Created attachment 65899 [details]
> [PATCH] sccvn: add path_vn, a path-aware value numbering driver

BTW, this is what would need fleshing out ;-), but is functional as-is.