[Bug tree-optimization/51879] Missed tail merging with non-const/pure calls

[vries at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51879

--- Comment #12 from vries at gcc dot gnu.org 2012-07-06 11:22:10 UTC ---
Author: vries
Date: Fri Jul  6 11:22:06 2012
New Revision: 189323

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189323
Log:
2012-07-06  Tom de Vries  <t...@codesourcery.com>

    PR tree-optimization/51879
    * tree-ssa-sccvn.c (copy_reference_ops_from_call)
    (visit_reference_op_call): Handle case that lhs is not an SSA_NAME.
    (visit_use): Also call visit_reference_op_call for calls with a vdef.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-ssa-sccvn.c

--- Comment #13 from vries at gcc dot gnu.org 2012-07-06 11:22:15 UTC ---
Author: vries
Date: Fri Jul  6 11:22:12 2012
New Revision: 189324

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=189324
Log:
2012-07-06  Tom de Vries  <t...@codesourcery.com>

    PR tree-optimization/51879
    * gcc.dg/pr51879-16.c: New test.
    * gcc.dg/pr51879-17.c: Same.

Added:
    trunk/gcc/testsuite/gcc.dg/pr51879-16.c
    trunk/gcc/testsuite/gcc.dg/pr51879-17.c
Modified:
    trunk/gcc/testsuite/ChangeLog