I am agree, benchmarking is evil. My favorite benchmark is gcc because
it is my tool and I work on it. Compilation of gcc from Spec2000 is
>12% slower with df including last Paolo's patches (which are a really
big improvement).
Interesting enough, 176.gcc has a pretty bad result for runtime too in
SPEC2000:
176.gcc 1100 67.8 1622 1100 72.9 1509*
176.gcc 1100 68.1 1614* 1100 72.9 1509
176.gcc 1100 68.8 1600 1100 72.6 1515
By your reasoning, there is some probability that fixing this one
performance regression brings dataflow branch into shape for merging
into mainline... (even though so much has changed since 2.7.2 which is
used in SPEC2000).
Paolo