[Bug tree-optimization/34976] verify_ssa ICE with -ftree-loop-linear

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

------- Comment #6 from spop at gcc dot gnu dot org  2008-06-07 22:58 -------
Subject: Bug 34976

Author: spop
Date: Sat Jun  7 22:57:55 2008
New Revision: 136543

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=136543
Log:
2008-05-08  Sebastian Pop  <sebastian.pop@amd.com>

        PR tree-optimization/34976
        * tree-loop-linear.c (try_interchange_loops): Look at size of
        caches: don't transform if the smallest stride is larger than
        the L2 cache, or if the largest stride multiplied by the number of
        iterations is smaller than the L1 cache.

        * testsuite/gcc.dg/tree-ssa/ltrans-8.c: Fix outer loop strides
        to be large enough to not be in L1 cache.


Modified:
    branches/gcc-4_3-branch/gcc/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_3-branch/gcc/testsuite/gcc.dg/tree-ssa/ltrans-8.c
    branches/gcc-4_3-branch/gcc/tree-loop-linear.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34976