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Fix invariant phi node removal.

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2010-05-07  Sebastian Pop  <sebastian.pop@amd.com>

	* graphite-sese-to-poly.c (loop_entry_phi_arg): Renamed
	phi_arg_in_outermost_loop.
	(remove_simple_copy_phi): Call phi_arg_in_outermost_loop.
	(remove_invariant_phi): Same.

From-SVN: r163105
This commit is contained in:
Sebastian Pop 2010-08-11 20:22:57 +00:00 committed by Sebastian Pop
parent 6cbd887583
commit 159e461678
3 changed files with 25 additions and 9 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2010-08-02 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (loop_entry_phi_arg): Renamed
phi_arg_in_outermost_loop.
(remove_simple_copy_phi): Call phi_arg_in_outermost_loop.
(remove_invariant_phi): Same.
2010-08-11 Anatoly Sokolov <aesok@post.ru>
* target.def (output_addr_const_extra): New hook.

7
gcc/ChangeLog.graphite
View File

@ -1,3 +1,10 @@
2010-05-07 Sebastian Pop <sebastian.pop@amd.com>
* graphite-sese-to-poly.c (loop_entry_phi_arg): Renamed
phi_arg_in_outermost_loop.
(remove_simple_copy_phi): Call phi_arg_in_outermost_loop.
(remove_invariant_phi): Same.
2010-04-12 Andreas Simbuerger <simbuerg@fim.uni-passau.de>
* graphite-blocking.c

20
gcc/graphite-sese-to-poly.c
View File

@ -73,21 +73,23 @@ var_used_in_not_loop_header_phi_node (tree var)
return result;
}
/* Returns the index of the phi argument corresponding to the initial
value in the loop. */
/* Returns the index of the PHI argument defined in the outermost
loop. */
static size_t
loop_entry_phi_arg (gimple phi)
phi_arg_in_outermost_loop (gimple phi)
{
loop_p loop = gimple_bb (phi)->loop_father;
size_t i;
size_t i, res = 0;
for (i = 0; i < gimple_phi_num_args (phi); i++)
if (!flow_bb_inside_loop_p (loop, gimple_phi_arg_edge (phi, i)->src))
return i;
{
loop = gimple_phi_arg_edge (phi, i)->src->loop_father;
res = i;
}
gcc_unreachable ();
return 0;
return res;
}
/* Removes a simple copy phi node "RES = phi (INIT, RES)" at position
@ -98,7 +100,7 @@ remove_simple_copy_phi (gimple_stmt_iterator *psi)
{
gimple phi = gsi_stmt (*psi);
tree res = gimple_phi_result (phi);
size_t entry = loop_entry_phi_arg (phi);
size_t entry = phi_arg_in_outermost_loop (phi);
tree init = gimple_phi_arg_def (phi, entry);
gimple stmt = gimple_build_assign (res, init);
edge e = gimple_phi_arg_edge (phi, entry);
@ -118,7 +120,7 @@ remove_invariant_phi (sese region, gimple_stmt_iterator *psi)
loop_p loop = loop_containing_stmt (phi);
tree res = gimple_phi_result (phi);
tree scev = scalar_evolution_in_region (region, loop, res);
size_t entry = loop_entry_phi_arg (phi);
size_t entry = phi_arg_in_outermost_loop (phi);
edge e = gimple_phi_arg_edge (phi, entry);
tree var;
gimple stmt;