[Bug tree-optimization/63379] [4.8 Regression] Incorrect vectorization when enabling SSE and O3, initialises loop with wrong value

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63379

--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to clyon from comment #8)
> After this commit, I've noticed that this new test appears as FAIL on target
> aarch64_be-none-linux-gnu.
> 
> My gcc.log shows:
> PASS: gcc.dg/vect/pr63379.c (test for excess errors)
> 
> *** EXIT code 4242
> emu: host signal 6
> FAIL: gcc.dg/vect/pr63379.c execution test
> 
> I'm using qemu as execution engine.

Maybe you run into known reduction endianess dependence issues here (as you
are on big-endian).  Who knows...