------- Comment #12 from jakub at gcc dot gnu dot org 2009-01-09 17:13 ------- Subject: Bug 38708
Author: jakub Date: Fri Jan 9 17:12:40 2009 New Revision: 143211 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143211 Log: PR target/38686 PR target/38708 * config/i386/i386.c (override_options): Reject -mstringop-strategy=rep_8byte with -m32. (ix86_expand_movmem): For size_needed == 1 set epilogue_size_needed to 1. Do count comparison against epilogue_size_needed at compile time even when count_exp was constant forced into register. For size_needed don't jump to epilogue, instead just avoid aligning and invoke the body algorithm. If need_zero_guard, add zero guard even if count is non-zero, but smaller than size_needed + number of bytes that could be stored for alignment. (ix86_expand_setmem): For size_needed == 1 set epilogue_size_needed to 1. If need_zero_guard, add zero guard even if count is non-zero, but smaller than size_needed + number of bytes that could be stored for alignment. Compare size_needed with epilogue_size_needed instead of desired_align - align, don't adjust size_needed, pass epilogue_size_needed to the epilogue expanders. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38708
