[Bug target/60300] [avr] Suboptimal stack pointer manipulation for frame setup

[gjl at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60300

--- Comment #6 from Georg-Johann Lay <gjl at gcc dot gnu.org> ---
Author: gjl
Date: Wed Nov 23 09:17:57 2016
New Revision: 242741

URL: https://gcc.gnu.org/viewcvs?rev=242741&root=gcc&view=rev
Log:
gcc/
        PR target/60300
        * config/avr/constraints.md (Csp): Widen range to [-11..6].
        * config/avr/avr.c (avr_prologue_setup_frame): Limit number
        of RCALLs in prologue to 3.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/avr/avr.c
    trunk/gcc/config/avr/constraints.md