https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101025
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |10.3.0
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot
gnu.org
Priority|P3 |P2
Known to fail| |11.1.0, 12.0
Last reconfirmed| |2021-06-11
Target Milestone|--- |11.2
Ever confirmed|0 |1
Version|unknown |12.0
Summary|wrong code at -O3 on |[11/12 Regression] wrong
|x86_64-linux-gnu |code at -O3 on
| |x86_64-linux-gnu
Status|UNCONFIRMED |ASSIGNED
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. -fno-tree-vectorize fixes it, but in the end it seems to be
store motion that moves the vector stores across the stores in the if (!g)
block. Thus -fno-tree-loop-im also fixes it.
