[Bug tree-optimization/45948] [4.6 Regression] ICE: SIGSEGV in find_uses_to_rename_use (tree-ssa-loop-manip.c:1242) with -O -fstrict-overflow -ftree-loop-distribution

[spop at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45948

--- Comment #7 from Sebastian Pop <spop at gcc dot gnu.org> 2010-12-15 05:04:34 
UTC ---
Author: spop
Date: Wed Dec 15 05:04:30 2010
New Revision: 167842

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=167842
Log:
Fix PR45948: add ssa defs from builtin partitions to the last partition.

2010-12-14  Sebastian Pop  <sebastian....@amd.com>

    PR tree-optimization/45948
    * tree-loop-distribution.c (ssa_name_has_uses_outside_loop_p): New.
    (stmt_has_scalar_dependences_outside_loop): New.
    (stmt_generated_in_another_partition): New.
    (add_scalar_computations_to_partition): New.
    (rdg_build_partitions): Call add_scalar_computations_to_partition.

    * gcc.dg/tree-ssa/ldist-pr45948.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/ldist-pr45948.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-loop-distribution.c