[Bug tree-optimization/93055] accumulation loops in stepanov_vector benchmark use more instruction level parpallelism

[amonakov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93055

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

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                 CC|                            |amonakov at gcc dot gnu.org

--- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
GCC is missing a smarter unrolling that would factor dependency chains is such
tiny loops.

Also, how on Earth do we get this invariant computation inside the loop?

> lea    0x2100(%rsp),%rdi

That's probably a regression that could be investigated and fixed separately.