http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47138
--- Comment #4 from Peter A. Bigot <bigotp at acm dot org> 2011-01-02 18:33:21 UTC --- Exactly: this problem also occurs with the TI msp430 target machine description, currently maintained as a fork on the mspgcc project on sourceforge. I don't know how to provide a test case other than a tar file and patch that adds that target, and a demonstration that without the referenced change build of libgcc fails with unrecognized instruction patterns (a parallel clobber didn't get updated, and the assert at the bottom of cfgrtl.c:patch_jump_insn gets hit when redirect_jump fails on a target that isn't an exit block). On further reflection, since this is fixed in trunk and the msp430 target wouldn't be back-ported into your repository for an existing release series, I'm ok with closing this as not-worth-fixing. I did, however, want an upstream problem report on which to hang the patches that I'll be maintaining.
