http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60102
Cesar Philippidis <cesar at codesourcery dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |cesar at codesourcery dot com --- Comment #6 from Cesar Philippidis <cesar at codesourcery dot com> --- I've found a similar problem with dwf_regno() when I tried to bootstrap a ppc-eabispe compiler. The problem there is the register aliasing of r0 between 32 and 64-bit modes. The rs6000 backend uses pseudo registers to disambiguate those two usages. I've posted a patch here <http://gcc.gnu.org/ml/gcc-patches/2014-04/msg02064.html>, but it hasn't been reviewed yet.