On 03/06/2018 07:16 PM, Bin.Cheng wrote:
On Tue, Mar 6, 2018 at 5:50 PM, Martin Liška <mli...@suse.cz> wrote:

This is speed comparison of GCC 8 builds compared to my system GCC 7.3.0
which is built with PGO bootstrap.

I run empty C and C++ source file, tramp3d and the rest are some big beasts
from GCC source file. Feel free to suggest another test candidates? Note
that first column defines how many times was test run.
First thanks very much for collecting the data.
Since we enabled several loop passes at O3 and above levels, some data
for Ofast might be interesting?

Do you have a nice source file full of loop nests that would test that




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