The lookups were written in 1997-ish when processors had different
vectorization/computation tradeoffs. It might be interesting to
investigate a non-table version of the macros and see how the
performance differs...
...jim
On 1/15/16 1:49 PM, Sergey Bylokhov wrote:
H
Hi,
I found that in case of vectorisation on of the main hotspot is out
table lookup pattern: mul8table/div8table which cannot be vectorized.
Another hotspot is a many conditions inside the main loops.
On 15/01/16 20:14, Laurent Bourgès wrote:
Sergey,
Did you made any progress ?
I finally
Sergey,
Did you made any progress ?
I finally looked at the preprocessed C code and also enabled
ftree-vectorizer-verbose output:
CFLAGS := -save-temps -ftree-vectorize -ftree-vectorizer-verbose=2
$(CFLAGS_JDKLIB) $(LIBAWT_CFLAGS), \
I looked at the IntArgbPreSrcMaskFill hotspot (in my Elli
