[Bug rtl-optimization/53176] [4.8 Regression] gcc.dg/lower-subreg-1.c FAILs

[hp at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53176

--- Comment #25 from Hans-Peter Nilsson <hp at gcc dot gnu.org> 2012-07-12 
21:14:19 UTC ---
Author: hp
Date: Thu Jul 12 21:14:14 2012
New Revision: 189441

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189441
Log:
    PR rtl-optimization/53176
    * rtlanal.c (rtx_cost): Adjust default cost for X with a
    UNITS_PER_WORD factor for all X according to the size of
    its mode, not just for SUBREGs with untieable modes.
    Handle SET.  Use factor * factor for MULT, DIV, UDIV,
    MOD, UMOD.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/rtlanal.c