r253336 - in /trunk/gcc: ChangeLog graphite-isl...

[rguenth at gcc dot gnu dot org]

Author: rguenth
Date: Mon Oct  2 07:32:52 2017
New Revision: 253336

URL: https://gcc.gnu.org/viewcvs?rev=253336&root=gcc&view=rev
Log:
2017-10-02  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/82355
	* graphite-isl-ast-to-gimple.c (build_iv_mapping): Also build
	a mapping for the enclosing loop but avoid generating one for
	the loop tree root.
	(copy_bb_and_scalar_dependences): Remove premature codegen
	error on PHIs in blocks duplicated into multiple places.
	* graphite-scop-detection.c
	(scop_detection::stmt_has_simple_data_refs_p): For a loop not
	in the region use it as loop and nest to analyze the DR in.
	(try_generate_gimple_bb): Likewise.
	* graphite-sese-to-poly.c (extract_affine_chrec): Adjust.
	(add_loop_constraints): For blocks in a loop not in the region
	create a dimension with a single iteration.
	* sese.h (gbb_loop_at_index): Remove assert.

	* gcc.dg/graphite/fuse-1.c: Adjust.
	* gcc.dg/graphite/fuse-2.c: Likewise.
	* gcc.dg/graphite/pr82355.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/graphite/pr82355.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/graphite-isl-ast-to-gimple.c
    trunk/gcc/graphite-scop-detection.c
    trunk/gcc/graphite-sese-to-poly.c
    trunk/gcc/sese.h
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/graphite/fuse-1.c
    trunk/gcc/testsuite/gcc.dg/graphite/fuse-2.c