[Bug middle-end/122126] [13/14/15/16 regression] X86-64 AVX2 and PowerPC64LE: crash at -O2/3

[avinashd at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122126

--- Comment #18 from Avinash Jayakar <avinashd at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #16)
> Also, why the idx var when there is tree idx = TREE_OPERAND (ref, 1); (or
> for 13 tree idx = TREE_OPERAND (lhs, 1);) a few lines earlier?

Sorry I did not notice this. We can use the pos directly as well.
I think doing changes after review, I had some name changes but did not notice
this duplication.