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| author | Sebastian Pop <sebastian.pop@amd.com> | 2009-11-25 04:54:30 +0000 |
|---|---|---|
| committer | Sebastian Pop <sebastian.pop@amd.com> | 2009-11-25 04:54:30 +0000 |
| commit | d03941b07b4d1321fe0c956baa8e36c180756932 (patch) | |
| tree | b5e1d1cd97c6ef8d389112a92df304c433f8bd89 /gcc/graphite-dependences.c | |
| parent | 8880a1aa0d8e9de2ff7252ffb20dcb83dffad0d8 (diff) | |
2009-10-05 Sebastian Pop <sebastian.pop@amd.com>
* graphite-dependences.c (reduction_ddr): New.
(graphite_legal_transform_bb): Call reduction_ddr.
* graphite-poly.c (new_poly_bb): Pass a new bool parameter.
Initialize PBB_IS_REDUCTION.
* graphite-poly.h (struct poly_bb): New bool field is_reduction.
(PBB_IS_REDUCTION): New.
(new_poly_bb): Update declaration.
* graphite-scop-detection.h (build_scop_bbs): Removed.
(nb_reductions_in_loop): Removed.
* graphite-sese-to-poly.c (try_generate_gimple_bb): Pass a sbitmap
parameter for reductions.
(try_generate_gimple_bb): Update call to new_poly_bb.
(build_scop_bbs_1): Same.
(build_scop_bbs): Same.
(gsi_for_phi_node): New.
(scalar_close_phi_node_p): Remove gcc_assert.
(split_reduction_stmt): New.
(is_reduction_operation_p): New.
(phi_contains_arg): New.
(follow_ssa_with_commutative_ops): New.
(detect_commutative_reduction_arg): New.
(detect_commutative_reduction_assign): New.
(follow_inital_value_to_phi): New.
(edge_initial_value_for_loop_phi): New.
(initial_value_for_loop_phi): New.
(detect_commutative_reduction): New.
(translate_scalar_reduction_to_array_for_stmt): New.
(insert_copyout): New.
(insert_copyin): New.
(translate_scalar_reduction_to_array): New.
(rewrite_commutative_reductions_out_of_ssa_close_phi): New.
(rewrite_commutative_reductions_out_of_ssa_loop): New.
(rewrite_commutative_reductions_out_of_ssa): New.
(build_poly_scop): Call rewrite_commutative_reductions_out_of_ssa.
* sese.h (split_region_for_bb): New.
* gcc.dg/graphite/graphite.exp (DEFAULT_CFLAGS_GRAPHITE_BLOCK): Add -ffast-math.
* gcc.dg/graphite/interchange-1.c: Fix format.
* gcc.dg/graphite/interchange-10.c: New.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@154561 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/graphite-dependences.c')
| -rw-r--r-- | gcc/graphite-dependences.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/graphite-dependences.c b/gcc/graphite-dependences.c index f7b8c737daf..2e777b3508d 100644 --- a/gcc/graphite-dependences.c +++ b/gcc/graphite-dependences.c @@ -585,6 +585,15 @@ graphite_legal_transform_dr (poly_bb_p pbb1, poly_bb_p pbb2, return is_empty_p; } +/* Return true when the data dependence relation for PBB1 and PBB2 is + part of a reduction. */ + +static inline bool +reduction_ddr (poly_bb_p pbb1, poly_bb_p pbb2) +{ + return pbb1 == pbb2 && PBB_IS_REDUCTION (pbb1); +} + /* Iterates over the data references of PBB1 and PBB2 and detect whether the transformed schedule is correct. */ @@ -600,6 +609,9 @@ graphite_legal_transform_bb (poly_bb_p pbb1, poly_bb_p pbb2) if (!PBB_PDR_DUPLICATES_REMOVED (pbb2)) pbb_remove_duplicate_pdrs (pbb2); + if (reduction_ddr (pbb1, pbb2)) + return true; + for (i = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb1), i, pdr1); i++) for (j = 0; VEC_iterate (poly_dr_p, PBB_DRS (pbb2), j, pdr2); j++) if (!graphite_legal_transform_dr (pbb1, pbb2, pdr1, pdr2)) |