http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51134
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2011-11-15 16:34:22 UTC --- (In reply to comment #4) > Hi, > the bug is loopy epilogue not being used because promoted value is not > availbale. The non-loopy epilogue does not expect alignments > greater than 16. > > I am testing the following patch. > I think we might still have bugs for blocks >8 && <16. Will try to produce > testcase. I believe so. If you configure GCC for Linux/x86-64 with --with-arch=core2 --with-cpu=atom you will get gengtype: malloc.c:3840: _int_malloc: Assertion `(unsigned long)(size) >= (unsigned long)(nb)' failed. make[6]: *** [s-gtype] Aborted
