ÒýÑÔ Zdenek Dvorak <[EMAIL PROTECTED]>: > Hello, > > > On Sunday 27 March 2005 04:45, Canqun Yang wrote: > > > Another question is why the new RTL loop- unroller does > > > not support giv splitting. > > > > Apparently because for most people it is not a problem that it does > > not do it, and while you have indicated earlier that it may be useful > > for you, you have neither tried to implement it yourself, nor provided > > a test case to PR20376. > > > > FWIW you could try -fweb and see if it does what you want. And if it > > does, you could write a limited webizer patch that works on just loop > > bodies after unrolling. > > from what I understood, change to analyze_iv_to_split_insn that would > detect memory references should suffice. Also maybe this patch might be > relevant: > > http://gcc.gnu.org/ml/gcc-patches/2004- 10/msg01176.html > > Zdenek >
I'll try this. Thanks a lot. Canqun Yang Creative Compiler Research Group. National University of Defense Technology, China.
