https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119533
Vineet Gupta <vineetg at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
See Also| |https://gcc.gnu.org/bugzill
| |a/show_bug.cgi?id=119547
--- Comment #12 from Vineet Gupta <vineetg at gcc dot gnu.org> ---
To recap, this needs 2 fixes
(1) Prevent BB with abnormal edges from getting into LCM computations [1]
This clears them from Anticipated and Transparent bitmaps
(2) Despite above, LCM earliest output can still have BB with such edges.
So prevent vsetvl hoisting into non-transparent BB [2]
This was anyhow needed for PR/119547
[1] https://gcc.gnu.org/pipermail/gcc-patches/2025-April/680556.html
[2] https://gcc.gnu.org/pipermail/gcc-patches/2025-April/680504.html