[Bug target/54009] incorrect code generated for DFmode lo_sum mem

[amodra at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54009

--- Comment #5 from Alan Modra <amodra at gcc dot gnu.org> 2013-02-07 02:37:49 UTC ---
Author: amodra
Date: Thu Feb  7 02:37:37 2013
New Revision: 195836

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195836
Log:
gcc/
    PR target/54009
    * config/rs6000/rs6000.c (mem_operand_gpr): Check that LO_SUM
    addresses won't wrap when offsetting.
    (rs6000_secondary_reload): Provide secondary reloads needed for
    wrapping LO_SUM addresses.

gcc/testsuite/
    PR target/54009
    * gcc.target/powerpc/pr54009.c: New test.


Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr54009.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/testsuite/ChangeLog