http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59088
--- Comment #2 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> --- Author: hjl Date: Tue Nov 12 14:38:49 2013 New Revision: 204703 URL: http://gcc.gnu.org/viewcvs?rev=204703&root=gcc&view=rev Log: Turn on SEE unaligned load and store for Haswell Backported from mainline PR target/59088 * config/i386/i386.c (initial_ix86_tune_features): Set X86_TUNE_SSE_UNALIGNED_LOAD_OPTIMAL and X86_TUNE_SSE_UNALIGNED_STORE_OPTIMAL for m_HASWELL. Modified: branches/gcc-4_8-branch/gcc/ChangeLog branches/gcc-4_8-branch/gcc/config/i386/i386.c