r143159 - in /trunk/gcc: ChangeLog graphite.c t...

[spop@gcc.gnu.org]

Author: spop
Date: Wed Jan  7 15:53:03 2009
New Revision: 143159

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=143159
Log:
2009-01-07  Jan Sjodin  <jan.sjodin@amd.com>

	PR tree-optimization/38492
	PR tree-optimization/38498
	* tree-check.c (operator_is_linear, scev_is_linear_expression): New.
	* tree-chrec.h (scev_is_linear_expression): Declared.
	* graphite.c (graphite_cannot_represent_loop_niter): New.
	(scopdet_basic_block_info): Call graphite_cannot_represent_loop_niter.
	(graphite_loop_normal_form): Use gcc_assert.
	(scan_tree_for_params): Use CASE_CONVERT.
	(phi_node_is_iv, bb_contains_non_iv_scalar_phi_nodes): New.
	(build_scop_conditions_1): Call bb_contains_non_iv_scalar_phi_nodes.
	Use gcc_assert.  Discard scops that contain unhandled cases.
	(build_scop_conditions): Return a boolean status for unhandled cases.
	(strip_mine_profitable_p): Print the loop number, not its depth.
	(is_interchange_valid): Pass the depth of the loop nest, don't
	recompute it wrongly.
	(graphite_trans_bb_block): Same.
	(graphite_trans_bb_block): Print tentative of loop blocking.
	(graphite_trans_scop_block): Do not print that the loop has been
	blocked.
	(graphite_transform_loops): Do not handle scops that contain condition
	scalar phi nodes.

	* testsuite/gcc.dg/graphite/pr38500.c: Fixed warning as committed
	in trunk.
	* testsuite/gcc.dg/graphite/block-0.c: Update test.
	* testsuite/gcc.dg/graphite/block-1.c: Same.
	* testsuite/gcc.dg/graphite/block-2.c: Remove xfail and test for blocking.
	* testsuite/gcc.dg/graphite/block-4.c: Remove test for strip mine.
	* testsuite/gcc.dg/graphite/block-3.c: New.
	* testsuite/gcc.dg/graphite/pr38498.c: New.


Added:
    trunk/gcc/testsuite/gcc.dg/graphite/block-3.c
    trunk/gcc/testsuite/gcc.dg/graphite/pr38498.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/graphite/block-0.c
    trunk/gcc/testsuite/gcc.dg/graphite/block-1.c
    trunk/gcc/testsuite/gcc.dg/graphite/block-2.c
    trunk/gcc/testsuite/gcc.dg/graphite/block-4.c
    trunk/gcc/tree-chrec.c
    trunk/gcc/tree-chrec.h