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| author | Sebastian Pop <sebastian.pop@amd.com> | 2009-11-25 04:58:45 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2009-11-25 04:58:45 +0000 |
| commit | c7dc2fabcf9c1e8c64c306375cc1bd19d8872329 (patch) | |
| tree | 9ade5d885eaf89dba560e64928d71b0d07a6cde2 /gcc | |
| parent | 24c79709800fe1f0213ef441f26fe08e881e5ab5 (diff) | |
| download | gcc-c7dc2fabcf9c1e8c64c306375cc1bd19d8872329.zip gcc-c7dc2fabcf9c1e8c64c306375cc1bd19d8872329.tar.gz gcc-c7dc2fabcf9c1e8c64c306375cc1bd19d8872329.tar.bz2 | |
graphite-sese-to-poly.c (rewrite_cross_bb_scalar_dependence): Do not replace cross BB scalar dependences ending on PHI nodes.
2009-10-09 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (rewrite_cross_bb_scalar_dependence): Do
not replace cross BB scalar dependences ending on PHI nodes.
(rewrite_cross_bb_scalar_deps): Filter out GIMPLE_PHI nodes.
From-SVN: r154570
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog.graphite | 6 | ||||
| -rw-r--r-- | gcc/graphite-sese-to-poly.c | 40 |
2 files changed, 15 insertions, 31 deletions
diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite index 388b4fd..3102f22 100644 --- a/gcc/ChangeLog.graphite +++ b/gcc/ChangeLog.graphite @@ -1,5 +1,11 @@ 2009-10-09 Sebastian Pop <sebastian.pop@amd.com> + * graphite-sese-to-poly.c (rewrite_cross_bb_scalar_dependence): Do + not replace cross BB scalar dependences ending on PHI nodes. + (rewrite_cross_bb_scalar_deps): Filter out GIMPLE_PHI nodes. + +2009-10-09 Sebastian Pop <sebastian.pop@amd.com> + * graphite-poly.c (apply_poly_transforms): Implement the high level driver for flag_loop_block. * tree-ssa-loop.c (gate_graphite_transforms): Remove call to sorry for diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c index 24e79cf..f8ecbae 100644 --- a/gcc/graphite-sese-to-poly.c +++ b/gcc/graphite-sese-to-poly.c @@ -2089,39 +2089,16 @@ rewrite_cross_bb_scalar_dependence (tree zero_dim_array, tree def, gimple use_st use_operand_p use_p; gimple_stmt_iterator gsi; - gimple_assign_set_lhs (name_stmt, name); - - if (gimple_code (use_stmt) == GIMPLE_PHI) - { - gimple phi = use_stmt; - edge entry; - unsigned i; + gcc_assert (gimple_code (use_stmt) != GIMPLE_PHI); - for (i = 0; i < gimple_phi_num_args (phi); i++) - if (operand_equal_p (def, gimple_phi_arg_def (phi, i), 0)) - { - entry = gimple_phi_arg_edge (phi, i); - break; - } + gimple_assign_set_lhs (name_stmt, name); - FOR_EACH_PHI_ARG (use_p, phi, iter, SSA_OP_USE) - if (operand_equal_p (def, USE_FROM_PTR (use_p), 0)) - { - gsi = gsi_last_bb (entry->src); - gsi_insert_after (&gsi, name_stmt, GSI_NEW_STMT); - SET_USE (use_p, name); - break; - } - } - else - { - gsi = gsi_for_stmt (use_stmt); - gsi_insert_before (&gsi, name_stmt, GSI_NEW_STMT); + gsi = gsi_for_stmt (use_stmt); + gsi_insert_before (&gsi, name_stmt, GSI_NEW_STMT); - FOR_EACH_SSA_USE_OPERAND (use_p, use_stmt, iter, SSA_OP_ALL_USES) - if (operand_equal_p (def, USE_FROM_PTR (use_p), 0)) - replace_exp (use_p, name); - } + FOR_EACH_SSA_USE_OPERAND (use_p, use_stmt, iter, SSA_OP_ALL_USES) + if (operand_equal_p (def, USE_FROM_PTR (use_p), 0)) + replace_exp (use_p, name); update_stmt (use_stmt); } @@ -2150,7 +2127,8 @@ rewrite_cross_bb_scalar_deps (sese region, gimple_stmt_iterator *gsi) def_bb = gimple_bb (stmt); FOR_EACH_IMM_USE_STMT (use_stmt, imm_iter, def) - if (def_bb != gimple_bb (use_stmt)) + if (def_bb != gimple_bb (use_stmt) + && gimple_code (use_stmt) != GIMPLE_PHI) { if (!zero_dim_array) { |