On Wed, Feb 27, 2013 at 06:59:58PM +0100, Sedat Dilek wrote: > How can I compare a gcc-4.6 and clang-3.2 compiled binaries? > Thinking of miscompiling and/or benchmarking. The real test is whether you can measure a difference in a benchmark like cairo-perf-trace. There are a few traces that are sensitive to CPU optimisations. To maximise the likelihood of spotting a difference though you will want to use microbenchmarks like x11perf, x11perf -aa10text would be a prime candidate. The last set of errors reported when compiled with Clang were during trapezoid rasterisation triggered whilst using normal Gtk+ and Qt apps. They have a tendency to hit all the corner cases. -Chris -- Chris Wilson, Intel Open Source Technology Centre
