------- Comment #17 from bonzini at gnu dot org 2007-11-07 16:03 -------
Created an attachment (id=14497)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14497&action=view)
"minimal" testcase
This is as small as I could get it (130 lines). Can be made smaller, but the
performance difference is much less sensitive. I get 0.8s with 4.2, 1.4s with
4.3.
The problem is that the MatRef classes (called EiMatrixConstRef in the
original, I renamed stuff and detemplatized it to simplify dumps) are not
scalarized.
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #14496|0 |1
is obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33604
