Hi! I'd like to backport the following patches to 7, 6, and where applicable 5 (some are in 7 already).
https://gcc.gnu.org/ml/gcc-patches/2017-05/msg02107.html Fix expand_builtin_atomic_fetch_op for pre-op (PR80902) https://gcc.gnu.org/ml/gcc-patches/2017-05/msg01404.html Fix comparison of decimal float zeroes (PR80692) https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00819.html IRA: Don't create new regs for debug insns (PR80429) https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01050.html lra: A multiple_sets is not a simple_move_p (PR73650) https://gcc.gnu.org/ml/gcc-patches/2016-11/msg01853.html https://gcc.gnu.org/ml/gcc-patches/2016-11/msg01923.html https://gcc.gnu.org/ml/gcc-patches/2016-11/msg02048.html https://gcc.gnu.org/ml/gcc-patches/2016-11/msg02606.html bb-reorder: Improve compgotos pass (PR71785) https://gcc.gnu.org/ml/gcc-patches/2017-05/msg00003.html simplify-rtx: Fix compare of comparisons (PR60818) Are those okay to backport? And, rs6000 patches: https://gcc.gnu.org/ml/gcc-patches/2017-06/msg00567.html rs6000: Don't add an immediate to r0 (PR80966) https://gcc.gnu.org/ml/gcc-patches/2017-05/msg02408.html rs6000: Don't write "nor" as (not (ior () ())) (PR80618) https://gcc.gnu.org/ml/gcc-patches/2017-04/msg00568.html rs6000: Enforce quad_address_p in TImode atomic_load/store (PR80382) https://gcc.gnu.org/ml/gcc-patches/2017-01/msg01543.html rs6000: Small varargs for BE SVR4 (PR61729, PR77850) Segher