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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
This commit is contained in:
Sebastian Pop 2009-11-25 04:58:45 +00:00 committed by Sebastian Pop
parent 24c7970980
commit c7dc2fabcf
2 changed files with 15 additions and 31 deletions
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6
gcc/ChangeLog.graphite
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@ -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

40
gcc/graphite-sese-to-poly.c
View File

@ -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;
gcc_assert (gimple_code (use_stmt) != GIMPLE_PHI);
gimple_assign_set_lhs (name_stmt, name);
if (gimple_code (use_stmt) == GIMPLE_PHI)
{
gimple phi = use_stmt;
edge entry;
unsigned i;
gsi = gsi_for_stmt (use_stmt);
gsi_insert_before (&gsi, name_stmt, GSI_NEW_STMT);
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;
}
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);
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)
{