15 Dec
2011
15 Dec
'11
1:42 p.m.
Hi,
After learning how to control MEM_ALIGN and, therefore, alignment hints from the vectorizer, I was able to generate 64-bit hints (with the help of Ramana's patches). I saw a 16% improvement on a benchmark with stack variables, for which we now force alignment to 64 bits and create alignment hints, instead of using peeling.
Ira