[Bug c/15431] inefficient register allocation

[falk at debian dot org]

------- Additional Comments From falk at debian dot org  2004-05-14 10:07 -------
I can confirm this on alphaev68. The problem seems to be basically the same
as in PR 11488. We might even close this as a duplicate, but I'll leave that
for somebody else to decide.

% gcc -O3 cellbug.i test.c && ./a.out                     
3.003 ms / 5.466 ms
% gcc -fno-schedule-insns -O3 cellbug.i test.c && ./a.out         
3.131 ms / 7.637 ms
% gcc -fnew-ra -O3 cellbug.i test.c && ./a.out
2.694 ms / 7.835 ms
% gcc -fnew-ra -fno-schedule-insns -O3 cellbug.i test.c && ./a.out
5.878 ms / 2.645 ms


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |pessimizes-code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15431