[Bug rtl-optimization/47525] DCE fails to eliminate a dead call to a pure function when compiled with -maltivec

[bergner at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47525

--- Comment #2 from Peter Bergner <bergner at gcc dot gnu.org> 2011-02-02 
20:08:10 UTC ---
Author: bergner
Date: Wed Feb  2 20:08:06 2011
New Revision: 169768

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169768
Log:
    PR rtl-optimization/47525
    * df-scan.c: Update copyright years.
    (df_get_call_refs): Do not mark global registers as DF_REF_REG_USE
    and non-clobber DF_REF_REG_DEF for calls to const and pure functions.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/df-scan.c