diff --git a/gcc/ChangeLog.graphite b/gcc/ChangeLog.graphite index 388b4fdd5900699708f06a66365174d6683fa60f..3102f22f260c1735df7095fc17ce2428471aead3 100644 --- a/gcc/ChangeLog.graphite +++ b/gcc/ChangeLog.graphite @@ -1,3 +1,9 @@ +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 diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c index 24e79cf89a6f0379af750de14f45765026604223..f8ecbaeba29de50df8097d60322942799e981a2a 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) {