------- Comment #8 from bernds at gcc dot gnu dot org 2010-07-28 15:46 ------- It sounds like the compiler is being miscompiled? If so, it's probably not helpful trying to debug the miscompiled compiler binary. The best way to debug this would be to produce one working build and one failing build of the compiler, then narrow down which file is being miscompiled by copying over object files from one directory to another. You may have a candidate already in the code you're looking at.
Once that's identified, please attach a .i of the file that's being miscompiled, and the exact command line options to give cc1 to reproduce the miscompilation. A set of good/bad .s files might also help. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45063
