[Bug rtl-optimization/18861] [4.0 Regression] ICE Segmentation fault in try_crossjump_to_edge at ../../gcc/gcc/cfgcleanup.c:1637 with two switches (table jumps)

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-01-07 09:04 -------
Subject: Bug 18861

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jakub@gcc.gnu.org	2005-01-07 09:04:02

Modified files:
	gcc            : ChangeLog cfgbuild.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: 20050105-1.c 

Log message:
	PR rtl-optimization/18861
	* cfgbuild.c (BLOCK_USED_BY_TABLEJUMP): Define.
	(FULL_STATE): Define.
	(mark_tablejump_edge): New function.
	(purge_dead_tablejump_edges): New function.
	(find_bb_boundaries): Use it.
	
	* gcc.dg/20050105-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7055&r2=2.7056
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cfgbuild.c.diff?cvsroot=gcc&r1=1.57&r2=1.58
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4861&r2=1.4862
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20050105-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18861