c/8093: Wrong warning by gcc suggests adding dead code to end of function

c/8093: Wrong warning by gcc suggests adding dead code to end of function

[andreaha-bugs]

>Number:         8093
>Category:       c
>Synopsis:       Wrong warning by gcc suggests adding dead code to end of function
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Sep 30 05:25:59 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Andreas Aardal Hanssen
>Release:        gcc version 2.96 20000731 (gcc-c++-2.96-112)
>Organization:
>Environment:
Linux, bash
>Description:
gcc gives a wrong warning when compiling the attached file
with -Wall.

It falsely claims that the control reaches the end of a
non-void function, when control can never reach the end.
>How-To-Repeat:
gcc -Wall test.cc -o test
>Fix:
?
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="test.cc"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="test.cc"

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Re: c/8093: Wrong warning by gcc suggests adding dead code to end of function

[rth]

Synopsis: Wrong warning by gcc suggests adding dead code to end of function

State-Changed-From-To: open->suspended
State-Changed-By: rth
State-Changed-When: Mon Sep 30 14:25:47 2002
State-Changed-Why:
    This will probably never be fixed.  Completely general value
    propagation is too compile-time expensive.
    
    Use a switch.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8093