OOP, faster data layouts, compilers

[David Nadlinger via Digitalmars-d]

On Wednesday, 2 September 2015 at 19:04:10 UTC, qznc wrote:
> The bad news: cmplepd and movmskpd are not used. Is that 
> possible somehow four years later?

I just checked, and LLVM does not know how to automatically 
vectorize that loop. You would need to write it manually using 
vector types (like in the C version).

> [0] https://github.com/qznc/d-shootout

As a general note, you might want to add "-boundscheck=off 
-mcpu=native" to the flags for LDC too for a fair comparison to 
the other compilers. Also, if you use the DMD-style flags (e.g. 
-O -inline), you should use the ldmd2 wrapper instead of ldc2.

You might also want to use 2.067 branch of ldc2 (just released as 
an alpha version) for better comparability to DMD.

  — David