http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49207
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Component|c |middle-end Resolution|--- |INVALID --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to hanib from comment #4) > (In reply to comment #3) > > I think you have an aliasing problem in your code. > > The code I am compiling is the Perlbench benchmark from SPEC-CPU2006. If I > compile the code for an Intel machine using -O2 there is no problem. This > problem only appears when I use the GCC MIPS cross-compiler with the -O2 > switch. I also traced through the code and the sequence of these two > instructions should be reversed. Perl in SPEC CPU 2006 has known aliasing bugs in it; just use -fno-strict-aliasing.