Flame bait: D vs. Rust vs. Go Benchmarking

[Joseph Rushton Wakeling]

On Thursday, 25 July 2013 at 08:13:07 UTC, Joseph Rushton 
Wakeling wrote:
> On Wednesday, 24 July 2013 at 11:32:17 UTC, bearophile wrote:
>> Compiling with LDC2 I have found Xorshift about as fast as C 
>> rand :-)
>
> Minor point, but it may be worth checking the number of bits 
> used in different languages' Xorshifts. For D the default is 
> 128. If others use less (or more) they may be faster (or 
> slower).

Just checked the code -- the C and Go versions are using 32-bit 
Xorshift so it's still not a fair comparison (didn't check for 
Rust). Could try with Xorshift32 (or bump the C/C++/Go/Rust 
versions to 128-bit).

But before doing that -- has the Xorshift32 bug fix made it to 
LDC yet?

Last observation -- could some of the LLVM vs. GCC difference be 
down to LLVM backends outputting native as opposed to generic 
executables?