I forgot to check for NULL current_function_return_rtx before calling mark_set_regs. An amended patch is attached. -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: sibcall-fix-20051123-2 URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20051123/8cd0e802/attachment.ksh>