[Bug target/106069] [12/13 Regression] wrong code with -O -fno-tree-forwprop -maltivec on ppc64le

[segher at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106069

--- Comment #10 from Segher Boessenkool <segher at gcc dot gnu.org> ---
This happened after
  commit 0910c516a3d72af048af27308349167f25c406c2
  Author: Xionghu Luo <luo...@linux.ibm.com>
  Date:   Tue Oct 19 04:02:04 2021 -0500
which probably caused it.  That means it would be GCC 12 and later.