[Bug tree-optimization/128096] RFE: use explicit writability contracts for pointer-based conditional stores

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128096

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
Masked stores solves this for most ISAs. 
X86_64 has avx512f which has masked stores.