[Bug tree-optimization/92645] Hand written vector code is 450 times slower when compiled with GCC compared to Clang

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92645
Bug 92645 depends on bug 92751, which changed state.

Bug 92751 Summary: VN partial def support confused about clobbers
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92751

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED