[Bug target/52076] bloated code for setting single bits in bitfields on m68k

["law at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52076

--- Comment #2 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Thu Jan 22 21:24:28 2015
New Revision: 220015

URL: https://gcc.gnu.org/viewcvs?rev=220015&root=gcc&view=rev
Log:
    PR target/52076
    * config/m68k/m68k.md (xorsi3_internal): Twiddle constraints to
    improve code density for small immediate to memory case.
    (insv): Better handle bitfield assignments when the field is
    being set to all ones.
    * config/m68k/predicates.md (reg_or_pow2_m1_operand): New
    operand predicate.

    PR target/52076
    * gcc.target/m68k/pr52076-1.c: New test.
    * gcc.target/m68k/pr52076-2.c: New test.

Added:
    trunk/gcc/config/m68k/.m68k.md.swp   (with props)
    trunk/gcc/testsuite/gcc.target/m68k/pr52076-1.c
    trunk/gcc/testsuite/gcc.target/m68k/pr52076-2.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/m68k/m68k.md
    trunk/gcc/config/m68k/predicates.md
    trunk/gcc/testsuite/ChangeLog

Propchange: trunk/gcc/config/m68k/.m68k.md.swp
            ('svn:executable' added)