[Bug tree-optimization/30186] accessing an element via a "pointer" on a vector does not cause vec_extract to be used (non-zero index)

["pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from pinskia at gcc dot gnu dot org  2008-03-31 18:22 -------
Subject: Bug 30186

Author: pinskia
Date: Mon Mar 31 18:22:05 2008
New Revision: 133766

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133766
Log:
2008-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30186
        * fold-const.c (fold_indirect_ref_1): Support accessing non first
        element of the vector via a pointer.

2008-03-31  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/30186
        * gcc.dg/tree-ssa/vector-1.c: New testcase.
        * gcc.c-torture/execute/vector-1.c: New testcase.
        * gcc.c-torture/execute/vector-2.c: New testcase.


Added:
    trunk/gcc/testsuite/gcc.c-torture/execute/vector-1.c
    trunk/gcc/testsuite/gcc.c-torture/execute/vector-2.c
    trunk/gcc/testsuite/gcc.dg/tree-ssa/vector-1.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/fold-const.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30186