[Bug target/50962] Additional opportunity for AGU stall avoidance optimization for Atom processor

[kyukhin at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50962

--- Comment #4 from Kirill Yukhin <kyukhin at gcc dot gnu.org> 2011-11-07 08:47:18 UTC ---
Author: kyukhin
Date: Mon Nov  7 08:47:15 2011
New Revision: 181077

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181077
Log:
gcc/
    PR target/50962
    * config/i386/i386-protos.h (ix86_use_lea_for_mov): New.
    * config/i386/i386.c (ix86_use_lea_for_mov): Likewise.
    * config/i386/i386.md (movsi_internal): Emit lea if profitable.
    (movdi_internal_rex64): Likewise.


Modified:
    trunk/gcc/config/i386/i386-protos.h
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/i386/i386.md
    trunk/gcc/testsuite/ChangeLog