[Bug rtl-optimization/56246] [4.8 regression] ICE in assign_by_spills, at lra-assigns.c:1262

[vmakarov at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56246



--- Comment #3 from Vladimir Makarov <vmakarov at gcc dot gnu.org> 2013-02-08 
21:59:16 UTC ---

Author: vmakarov

Date: Fri Feb  8 21:59:11 2013

New Revision: 195902



URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=195902

Log:

2013-02-08  Vladimir Makarov  <vmaka...@redhat.com>



    PR rtl-optimization/56246

    * lra-constraints.c (simplify_operand_subreg): Try tor reuse

    reload pseudo.

    * lra.c (lra): Clear lra_optional_reload_pseudos only when all

    constraints are satisfied.



2013-02-08  Vladimir Makarov  <vmaka...@redhat.com>



    PR rtl-optimization/56246

    * gcc.target/i386/pr56246.c: New test.





Added:

    trunk/gcc/testsuite/gcc.target/i386/pr56246.c

Modified:

    trunk/gcc/ChangeLog

    trunk/gcc/lra-constraints.c

    trunk/gcc/lra.c

    trunk/gcc/testsuite/ChangeLog