http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47919
--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> 2011-03-02 16:44:30 UTC --- Created attachment 23516 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23516 different testcase Another testcase that needs insane flags to reproduce... $ gcc -fcse-follow-jumps -fgcse -frerun-cse-after-loop -O -fira-region=one -fPIC -fcompare-debug -fno-dce -fno-ivopts -fno-tree-ch -funroll-loops -fno-web -m32 testcase.c gcc: error: testcase.c: -fcompare-debug failure (length)