ÒýÑÔ Zdenek Dvorak <[EMAIL PROTECTED]>: > Hello, > > > On Sunday 27 March 2005 03:53, Canqun Yang wrote: > > > The last ChangeLog of rtlopt-branch was written in > > > 2003. After more than one year, many impovements in > > > this branch haven't been put into the GCC HEAD. Why? > > > > Almost all of the rtlopt branch was merged. Prefetching is one > > of the few things that was not, probably Zdenek knows why. > > because I never made it work as well as the current version, > basically. At least no matter how much I tried, I never produced > any benchmark numbers that would justify the change. Then I went > to tree-ssa (and tried to write prefetching there, and got stuck on > the same issue, after which I simply forgot due to loads of other work > :-( ). > > Zdenek >
It shoud be the similar reason as comments in my previously supplied patch. http://gcc.gnu.org/ml/gcc-patches/2005-03/msg02400.html . Canqun Yang Creative Compiler Research Group. National University of Defense Technology, China.
