https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61308
--- Comment #4 from ian at gcc dot gnu.org <ian at gcc dot gnu.org> --- Author: ian Date: Tue Aug 5 02:58:15 2014 New Revision: 213616 URL: https://gcc.gnu.org/viewcvs?rev=213616&root=gcc&view=rev Log: PR go/61308 PR go/61866 compiler: Don't cast index expr to int before bounds check. This fixes http://gcc.gnu.org/PR61866 : on a 32-bit system, casting an int64 index to int drops the upper 32 bits of the value, and thus can cause an out-of-range index to appear to be in range. This undoes part of change 1318:fa6e0c716dba (https://codereview.appspot.com/104610044) and therefore breaks http://gcc.gnu.org/PR61308 again. I have a separate patch for that (http://codereview.appspot.com/122020043). In addition to undoing part of that change, this patch adds code to avoid a compiler crash. This changes PR61308 from a compiler crash to an incorrect error message. Modified: trunk/gcc/go/gofrontend/expressions.cc
