[Bug target/50465] [avr] Use insn attribute to depict if and how instruction lengths have to be adjusted

[gjl at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50465

--- Comment #2 from Georg-Johann Lay <gjl at gcc dot gnu.org> 2011-09-22 
09:55:20 UTC ---
Author: gjl
Date: Thu Sep 22 09:55:13 2011
New Revision: 179081

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=179081
Log:
    PR target/50447
    PR target/50465
    * config/avr/avr-protos.h (avr_out_bitop): New prototype.
    (avr_popcount_each_byte): New prototype.
    * config/avr/avr.c (avr_popcount): New static function.
    (avr_popcount_each_byte): New function.
    (avr_out_bitop): New function.
    (adjust_insn_length): ADJUST_LEN_OUT_BITOP dispatches to
    avr_out_bitop.  Cleanup code.
    * config/avr/constraints.md (Ca2, Co2, Cx2): New constraints.
    (Ca4, Co4, Cx4): New constraints.
    * config/avr/avr.md (adjust_len): Add "out_bitop" insn attribute
    alternative.
    (andhi3, iorhi3, xorhi3): Rewrite insns using avr_out_bitop.
    (andsi3, iorsi3, xorsi3): Ditto.
    (*iorhi3_clobber, *iorsi3_clobber): Remove insns.


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