[Bug tree-optimization/22422] [4.1 Regression] ICE in first_vi_for_offset, at tree-ssa-structalias.c:2843

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-07-13 02:25 -------
Subject: Bug 22422

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dberlin@gcc.gnu.org	2005-07-13 02:25:48

Modified files:
	gcc            : ChangeLog tree-ssa-structalias.c 

Log message:
	2005-07-12  Daniel Berlin  <dberlin@dberlin.org>
	
	Fix PR tree-optimization/22422
	* tree-ssa-structalias.c (struct variable_info): Add flag for
	special vars.
	(get_varinfo): Now a static function.
	(new_varinfo): init has_union and is_special_var to false.
	(solution_set_add): Check has_union.
	(do_da_constraint): Move temporary variable so it gets reset
	properly.
	Also check for special variable.
	(do_ds_constraint): Ditto.
	(do_sd_constraint): Ditto.
	(do_structure_copy): Check for special variable.
	(find_func_aliases): Ditto.
	(init_base_vars): Set special vars properly.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9424&r2=2.9425
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-structalias.c.diff?cvsroot=gcc&r1=2.17&r2=2.18



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22422