[Bug tree-optimization/20920] [4.1 Regression] ICE with eh and VRP

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-04-11 15:06 -------
Subject: Bug 20920

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	dnovillo@gcc.gnu.org	2005-04-11 15:05:50

Modified files:
	gcc            : ChangeLog tree-pretty-print.c tree-vrp.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/tree-ssa: pr20920.C 

Log message:
	PR tree-optimization/20920
	* tree-pretty-print.c (dump_generic_node): Show '(ab)' if an
	SSA_NAME flows through an abnormal edge.
	* tree-vrp.c (infer_value_range): Ignore SSA names that flow
	through abnormal edges.
	(maybe_add_assert_expr): Likewise.
	
	PR tree-optimization/20920
	* g++.dg/tree-ssa/pr20920.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8227&r2=2.8228
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pretty-print.c.diff?cvsroot=gcc&r1=2.56&r2=2.57
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.2&r2=2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5324&r2=1.5325
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/tree-ssa/pr20920.C.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20920