fn t(n: usize) -> usize { (0..n+1).fold(0, |s, i| s+i*i*i) }

gistfile1.txt

    5828:	49 83 fa ff          	cmp    $0xffffffffffffffff,%r10
    582c:	74 5d                	je     588b <_ZN8triangle4main17h1e5682daf508becbE+0x11b>
    582e:	49 8d 42 ff          	lea    -0x1(%r10),%rax
    5832:	49 f7 e2             	mul    %r10
    5835:	49 89 c0             	mov    %rax,%r8
    5838:	49 89 d1             	mov    %rdx,%r9
    583b:	49 8d 72 fe          	lea    -0x2(%r10),%rsi
    583f:	48 f7 e6             	mul    %rsi
    5842:	48 89 c7             	mov    %rax,%rdi
    5845:	48 89 d3             	mov    %rdx,%rbx
    5848:	89 f0                	mov    %esi,%eax
    584a:	41 0f af c1          	imul   %r9d,%eax
    584e:	4d 0f a4 c1 3f       	shld   $0x3f,%r8,%r9
    5853:	4a 8d 34 cd 00 00 00 	lea    0x0(,%r9,8),%rsi
    585a:	00 
    585b:	4c 29 ce             	sub    %r9,%rsi
    585e:	01 c3                	add    %eax,%ebx
    5860:	4d 8d 42 fd          	lea    -0x3(%r10),%r8
    5864:	48 89 f8             	mov    %rdi,%rax
    5867:	49 f7 e0             	mul    %r8
    586a:	44 89 c1             	mov    %r8d,%ecx
    586d:	0f af cb             	imul   %ebx,%ecx
    5870:	01 ca                	add    %ecx,%edx
    5872:	48 0f a4 c2 3e       	shld   $0x3e,%rax,%rdx
    5877:	48 83 e2 fe          	and    $0xfffffffffffffffe,%rdx
    587b:	48 01 ff             	add    %rdi,%rdi
    587e:	48 83 e7 fc          	and    $0xfffffffffffffffc,%rdi
    5882:	4c 01 d6             	add    %r10,%rsi
    5885:	48 01 fe             	add    %rdi,%rsi
    5888:	48 01 d6             	add    %rdx,%rsi
    588b:	... and use %rsi