[Bug tree-optimization/17766] [4.0 Regression] cc1 hangs in with -O3, works with -O2

["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  2004-10-16 16:59 -------
Subject: Bug 17766

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rakdver@gcc.gnu.org	2004-10-16 16:58:59

Modified files:
	gcc            : ChangeLog basic-block.h cfghooks.c dominance.c 
	                 tree-cfg.c tree-complex.c tree-mudflap.c 

Log message:
	PR tree-optimization/17766
	* basic-block.h (enum dom_state): DOM_CONS_OK removed.
	(dom_info_available_p): Declare.
	* cfghooks.c (split_block, make_forwarder_block): Use
	dom_info_available_p.
	* dominance.c (compute_dom_fast_query, calculate_dominance_info,
	free_dominance_info, verify_dominators): Ditto.
	(dom_info_available_p): New function.
	* tree-cfg.c (cleanup_control_expr_graph): Free dominance information.
	(thread_jumps): Use dom_info_available_p.
	* tree-complex.c (expand_complex_div_wide): Ditto.
	* tree-mudflap.c (mf_build_check_statement_for): Ditto.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5907&r2=2.5908
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/basic-block.h.diff?cvsroot=gcc&r1=1.219&r2=1.220
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfghooks.c.diff?cvsroot=gcc&r1=1.16&r2=1.17
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dominance.c.diff?cvsroot=gcc&r1=1.31&r2=1.32
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&r1=2.77&r2=2.78
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-complex.c.diff?cvsroot=gcc&r1=2.12&r2=2.13
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-mudflap.c.diff?cvsroot=gcc&r1=2.29&r2=2.30



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17766