http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52041
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-30 16:16:48 UTC --- Is it -g vs. -g0 related? I.e. if you recompile tree-ssa-strlen.i with stage1 and stage2 cc1 with the same options, does it yield the same assembly? If not, stage2 might be miscompiled or similar issue, if yes, does compiling tree-ssa-strlen.i with -fcompare-debug (in addition to the standard options) yield a failure? If it is not -g vs. -g0, you could try -fdump-tree-all with both compilers and compare where the first difference appears.