------- Comment #4 from steven at gcc dot gnu dot org 2007-08-14 21:34 ------- r127273 is this patch: http://gcc.gnu.org/ml/gcc-cvs/2007-08/msg00165.html
My initial reaction was, "What happens to the REG_RETVAL note, if the insn with the REG_LIBCALL note?" I don't know what happens with the REG_LIBCALL note, but if it disappears with the insn that's being deleted, then you should also remove the REG_RETVAL note, or you're creating something that will look like nested libcalls (which gcse.c handles, but they're actually not allowed). So, can you check what happens with the REG_RETVAL note, please? -- steven at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |steven at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33029