FWIW ..
I think the phoronix benchmarks got similar results.
http://www.phoronix.com/scan.php?page=article&item=gcc_llvm_clang&num=1
http://www.phoronix.com/scan.php?page=article&item=llvm_gcc_atom&num=1
IMHO, 10% is not a huge performance difference though.
Pedro.
Hi everyone,
we have performed a benchmark of the perl binary compiled with base gcc,
ports gcc and ports clang using the perlbench benchmark suite.
Our benchmark was performed solely on amd64 with 10 different processors
and we have tried different -march= flags to compare binary performance
of t
