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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Toy computational "benchmark" in Ada (new blog post)
Date: Thu, 06 Jun 2019 22:57:25 -0700
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David Trudgett <dktrudgett@gmail.com> writes:
> Those times are amazingly slow. Perhaps you would like to post the
> disassembly of the inner loop to see what the issue is?

I think this is it below.  I don't understand why it's accumulating the
values into a stack slot instead of a register, but I don't know the x86
all that well.

    .L17:
            addq    $1, %rax
    .LEHB4:
            movq    416(%r12), %rdx
            movsd   -8(%rdx,%rax,8), %xmm0
    .LEHE4:
            mulsd   %xmm0, %xmm0
            cmpq    %rax, %rbp
            addsd   8(%rsp), %xmm0
            movsd   %xmm0, 8(%rsp)
            jne     .L17
            jmp     .L19