This is a change I found on my disk that dates back more than a year; I don't recall the trigger back then, but verified it still works and applied it.
Use the version of the proceedings we've got on our FTP site. Makes for a simpler, more stable link. Gerald Index: projects/tree-ssa/vectorization.html =================================================================== RCS file: /cvs/gcc/wwwdocs/htdocs/projects/tree-ssa/vectorization.html,v retrieving revision 1.32 diff -u -r1.32 vectorization.html --- projects/tree-ssa/vectorization.html 29 May 2016 08:11:26 -0000 1.32 +++ projects/tree-ssa/vectorization.html 2 Jun 2018 12:26:51 -0000 @@ -1524,8 +1524,7 @@ <li>"Loop-Aware SLP in GCC", Ira Rosen, Dorit Nuzman and Ayal Zaks, GCC summit, July 2007. - <a href="https://gcc.gnu.org/wiki/HomePage?action=AttachFile&do=view&target=GCC2007-Proceedings.pdf"> - https://gcc.gnu.org/wiki/HomePage?action=AttachFile&do=view&target=GCC2007-Proceedings.pdf</a></li> + <a href="ftp://gcc.gnu.org/pub/gcc/summit/2006-GCC-Summit-Proceedings.pdf">GCC Summit 2007 Proceedings</a></li> <li>"Autovectorization in GCC - two years later", Dorit Nuzman and Ayal Zaks, GCC summit, June 2006.