[Bug target/115362] fixed_size_simd dot product recognition and sign of determinant not working for stdx::reduce

[jondaniel879 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115362

--- Comment #23 from Jon Daniel <jondaniel879 at gmail dot com> ---
(In reply to Jon Daniel from comment #21)
> The generated assembler output of
> 
> g++:
>         vmaskmovps      40(%rsp), %xmm1, %xmm0
>         vmaskmovps      56(%rsp), %xmm1, %xmm2
>         vmulps  %xmm2, %xmm0, %xmm0
> 
> Notice the lower memory address register is taken as the second source
> operand
> 
> clang++:
>         vmaskmovps      48(%rsp), %xmm0, %xmm2
>         vmaskmovps      32(%rsp), %xmm0, %xmm3
>         vmulps  %xmm3, %xmm2, %xmm2
> 
> Notice the lower memory address register is taken as the first source operand

Please delete "Comment 21" it is accidently posted wrong code and has nothing
to do with the bug.