[Bug tree-optimization/18792] ICE with -O1 -ftree-loop-linear on small test case

["cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-06 22:08 -------
Subject: Bug 18792

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dberlin@gcc.gnu.org	2005-01-06 22:08:27

Modified files:
	gcc            : ChangeLog tree-data-ref.c tree-loop-linear.c 
Added files:
	gcc/testsuite/gcc.dg: pr18792.c 

Log message:
	2005-01-06  Daniel Berlin <dberlin@dberlin.org>
	
	Fix PR tree-optimization/18792
	
	* tree-data-ref.c (build_classic_dist_vector): Change first_loop
	to first_loop_depth, and use loop depth instead of loop number.
	(build_classic_dir_vector): Ditto.
	(compute_data_dependences_for_loop): Use depth, not loop number.
	* tree-loop-linear.c (try_interchange_loops): Use loop depth, not loop
	number. Pass in loops, instead of loop numbers.
	(gather_interchange_stats): Ditto.
	(linear_transform_loops): Ditto.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7049&r2=2.7050
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-data-ref.c.diff?cvsroot=gcc&r1=2.18&r2=2.19
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-loop-linear.c.diff?cvsroot=gcc&r1=2.4&r2=2.5
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/pr18792.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18792