https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90094
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization
Target| |x86_64-*-*, i?86-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-04-16
Component|target |rtl-optimization
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I guess this also applies to conditional branches. It might require to copy
a to a scratch register in case it's value is live over the comparison
(but then it saves a reg for the constant).
