c++/1975: ICE for -O2 compile of nested throw in nested default/switch/conditional/destructor.

[bumgard@roguewave.com]

>Number:         1975
>Category:       c++
>Synopsis:       ICE for -O2 compile of nested throw in nested default/switch/conditional/destructor.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Feb 13 23:16:01 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Gregory Bumgardner
>Release:        gcc-3_0-branch 2001-02-13
>Organization:
>Environment:
Linux Redhat 7.0 2.2.16
>Description:
Throwing an exception (that has or inherits an explicit
destructor) from within a default switch case follows
another case with an arbitrary throw statement, where that
switch statement is nested within a conditional, and that
conditional is contained in an arbitrary class destructor,
produces an internal compiler error when compiling with -O2.

Please see the attached test program for a more detailed 
description.


>How-To-Repeat:
c++ -O2 -c test.cpp
>Fix:
Not a clue.
>Release-Note:
>Audit-Trail:
>Unformatted:
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