http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58269
--- Comment #20 from Jack Howarth <howarth at nitro dot med.uc.edu> --- (In reply to Iain Sandoe from comment #19) The full commit where this was added to llvm is at http://permalink.gmane.org/gmane.comp.compilers.llvm.cvs/153081 and references http://software.intel.com/en-us/intel-isa-extensions (and I assume http://download-software.intel.com/sites/default/files/319433-015.pdf).
