r135663 - in /trunk/gcc: ChangeLog testsuite/Ch...

[spop@gcc.gnu.org]

Author: spop
Date: Tue May 20 16:05:09 2008
New Revision: 135663

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=135663
Log:
2008-05-20  Jan Sjodin  <jan.sjodin@amd.com>
	    Sebastian Pop  <sebastian.pop@amd.com>

	PR tree-optimization/36206
	* tree-scalar-evolution.c: Remove enum INSERT_SUPERLOOP_CHRECS,
	FOLD_CONVERSIONS.
	(instantiate_scev_1): Rename flags to fold_conversions.
	Do not check for INSERT_SUPERLOOP_CHRECS, keep SSA_NAMEs defined
	outeside instantiation_loop.
	* tree-chrec.h (evolution_function_is_affine_in_loop): New.
	(evolution_function_is_affine_or_constant_p): Removed.
	* tree-data-ref.c (dr_analyze_indices): Replace resolve_mixers with
	instantiate_scev.
	(analyze_siv_subscript): Pass in the loop nest number.
	Call evolution_function_is_affine_in_loop instead of 
	evolution_function_is_affine_p.
	(analyze_overlapping_iterations): Pass in the loop nest number.

	* tree-chrec.h (chrec_fold_op): New.
	* tree-data-ref.c (initialize_matrix_A): Traverse NOP_EXPR, PLUS_EXPR, and
	other trees.

	* testsuite/gfortran.dg/pr36206.f: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/pr36206.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-chrec.h
    trunk/gcc/tree-data-ref.c
    trunk/gcc/tree-scalar-evolution.c