Jeff Law <l...@redhat.com> writes: > On 08/05/2015 08:18 AM, Richard Sandiford wrote: >> Building some targets results in a warning about orig_dup[i] potentially >> being used uninitialised. I think the warning is fair, since it isn't >> obvious that the reog_data-based loop bound remains unchanged between: >> >> for (i = 0; i < recog_data.n_dups; i++) >> orig_dup[i] = *recog_data.dup_loc[i]; >> >> and: >> >> for (i = 0; i < recog_data.n_dups; i++) >> *recog_data.dup_loc[i] = orig_dup[i]; >> >> Tested on x86_64-linux-gnu. OK to install? >> >> Thanks, >> Richard >> >> gcc/ >> * reload1.c (elimination_costs_in_insn): Make it obvious to the >> compiler that the n_dups and n_operands loop bounds are invariant. > So thinking more about this, I think the best way forward is to: > > 1. Create a new BZ with the false positive extracted from c#4. > > 2. Install your patch and close 55035. > > I'll take care of #1, you can handle #2.
Thanks, I've now done #2. Richard
