diff options
| author | Sebastian Pop <sebastian.pop@amd.com> | 2008-10-15 16:13:33 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2008-10-15 16:13:33 +0000 |
| commit | 36174c82ee3314e97e8750909f5ff61b7dccbb1b (patch) | |
| tree | 2a696ea15c824e9308e4456e69b42c210b4e281b /gcc/tree-loop-linear.c | |
| parent | fb06824788e06fcc4d2ba65724feae2bf5cfed15 (diff) | |
| download | gcc-36174c82ee3314e97e8750909f5ff61b7dccbb1b.tar.gz | |
re PR tree-optimization/37686 (Building of CPU2000's bzip2 with peak flags with -mcpu=power4 fails with an ICE.)
2008-10-15 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/37686
* testsuite/gcc.dg/tree-ssa/pr37686.c: New.
* tree-loop-linear.c (linear_transform_loops): Build a
loop nest vector. Pass it to lambda_compute_access_matrices.
* tree-data-ref.h (struct access_matrix): Store the loop nest
relative to which it encodes the information.
(AM_LOOP_NEST_NUM): Renamed AM_LOOP_NEST.
(am_vector_index_for_loop): Reimplemented: iterate over the
loop nest for finding the loop index in the access matrix.
(lambda_compute_access_matrices): Update declaration.
* lambda-code.c (build_access_matrix): Pass the loop nest and
record it.
(lambda_compute_access_matrices): Same.
From-SVN: r141141
Diffstat (limited to 'gcc/tree-loop-linear.c')
| -rw-r--r-- | gcc/tree-loop-linear.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gcc/tree-loop-linear.c b/gcc/tree-loop-linear.c index a97433bf909..8b57e2acf10 100644 --- a/gcc/tree-loop-linear.c +++ b/gcc/tree-loop-linear.c @@ -333,11 +333,16 @@ linear_transform_loops (void) lambda_loopnest before, after; lambda_trans_matrix trans; struct obstack lambda_obstack; + struct loop *loop; + VEC(loop_p,heap) *nest = VEC_alloc (loop_p, heap, 3); depth = perfect_loop_nest_depth (loop_nest); if (depth == 0) continue; + for (loop = loop_nest; loop; loop = loop->inner) + VEC_safe_push (loop_p, heap, nest, loop); + gcc_obstack_init (&lambda_obstack); VEC_truncate (tree, oldivs, 0); VEC_truncate (tree, invariants, 0); @@ -350,8 +355,7 @@ linear_transform_loops (void) goto free_and_continue; lambda_collect_parameters (datarefs, &lambda_parameters); - if (!lambda_compute_access_matrices (datarefs, lambda_parameters, - loop_nest->num)) + if (!lambda_compute_access_matrices (datarefs, lambda_parameters, nest)) goto free_and_continue; if (dump_file && (dump_flags & TDF_DETAILS)) @@ -410,6 +414,7 @@ linear_transform_loops (void) obstack_free (&lambda_obstack, NULL); free_dependence_relations (dependence_relations); free_data_refs (datarefs); + VEC_free (loop_p, heap, nest); } for (i = 0; VEC_iterate (gimple, remove_ivs, i, oldiv_stmt); i++) |