[Bug target/84280] [6/7/8 Regression] Performance regression in g++-7 with Eigen for non-AVX2 CPUs

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84280

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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           Keywords|                            |missed-optimization
           Priority|P3                          |P2

--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ok, so this means it is coalescing related.  We still don't know which
coalescing is good/bad though.