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[Bug tree-optimization/13776] [4.0 Regression] [tree-ssa] Many C++ compile-time regression in 4.0-tree-ssa 040120


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-11-18 21:12 -------
Hmm, with the mainline on PPC-darwin for ir.ii at -O0 we are faster than both 3.3 and 3.1.
3.1:
51.260u 2.110s 0:56.27 94.8%    0+0k 0+7io 0pf+0w
3.3:
46.000u 3.600s 0:50.91 97.4%    0+0k 0+7io 0pf+0w
mainline:
39.730u 5.270s 0:48.27 93.2%    0+0k 0+8io 0pf+0w

Even at -O1 we are faster than 3.3:
mainline:
70.860u 5.010s 1:18.76 96.3%    0+0k 0+11io 0pf+0w
3.3:
72.650u 13.250s 1:29.99 95.4%   0+0k 0+7io 0pf+0w
For -O2 we are only 1 second slower than 3.3:
mainline:
99.720u 5.510s 1:54.78 91.6%    0+0k 0+13io 0pf+0w
3.3:
98.610u 38.800s 2:25.59 94.3%   0+0k 0+15io 0pf+0w

Could you check again on your platform?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13776


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