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[Bug tree-optimization/34976] verify_ssa ICE with -ftree-loop-linear
- From: "spop at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Jun 2008 22:58:40 -0000
- Subject: [Bug tree-optimization/34976] verify_ssa ICE with -ftree-loop-linear
- References: <bug-34976-14936@http.gcc.gnu.org/bugzilla/>
- Reply-to: 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
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34976