Igor Zamyatin <izamya...@gmail.com> writes: > Hi All! > > It is known that imul placement is rather critical for Atom processors > and changes try to improve imul scheduling for Atom. > > This gives +5% performance on several tests from new OA 2.0 testsuite > from EEMBC. > > Tested for i386 and x86-64, ok for trunk?
Did you measure how much this slows down the compiler when compiling for Atom? The new pass looks rather slow. -Andi -- a...@linux.intel.com -- Speaking for myself only
