On 16 January 2012 18:17, Andrei Alexandrescu <seewebsiteforem...@erdani.org > wrote:
> On 1/15/12 12:56 AM, Walter Bright wrote: > >> I get a 2 to 2.5 speedup with the vector instructions on 64 bit Linux. >> Anyhow, it's good enough now to play around with. Consider it alpha >> quality. Expect bugs - but make bug reports, as there's a serious lack >> of source code to test it with. >> ----------------------- >> import core.simd; >> >> void test1a(float[4] a) { } >> >> void test1() >> { >> float[4] a = 1.2; >> a[] = a[] * 3 + 7; >> test1a(a); >> } >> >> void test2a(float4 a) { } >> >> void test2() >> { >> float4 a = 1.2; >> a = a * 3 + 7; >> test2a(a); >> } >> > > These two functions should have the same speed. A function using float arrays and a function using hardware vectors should certainly not be the same speed.