[Bug target/9786] [3.3/3.4 regression] Ice in fixup_abnormal_edges with -fnon-call-exceptions -O2

[cvs-commit at gcc dot gnu dot org]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9786



------- Additional Comments From cvs-commit at gcc dot gnu dot org  2003-09-22 06:59 -------
Subject: Bug 9786

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	ebotcazou@gcc.gnu.org	2003-09-22 06:59:51

Modified files:
	gcc            : ChangeLog reg-stack.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/g++.dg/opt: reg-stack2.C 

Log message:
	PR target/9786
	* reg-stack.c (convert_regs_1): Purge possible dead eh edges
	after potential deletion of trapping insn. Avoids later ICE
	from call to fixup_abnormal_edges.
	(convert_regs_2): Stack the current block successors before
	processing this block, that is, before the potential deletion of
	dead edges by convert_regs_1, because these edges have been used
	to initialize the predecessors count.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.1116&r2=2.1117
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reg-stack.c.diff?cvsroot=gcc&r1=1.132&r2=1.133
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.3075&r2=1.3076
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/opt/reg-stack2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1