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Date: Wed, 04 Sep 2002 09:46:00 -0000
From: duchier@ps.uni-sb.de
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Subject: c++/7827: incorrect warning "will never be executed" when optimizing
X-SW-Source: 2002-09/txt/msg00059.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         7827
>Category:       c++
>Synopsis:       incorrect warning "will never be executed" when optimizing
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 04 09:46:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     duchier@ps.uni-sb.de
>Release:        3.2.1 20020904 (prerelease)
>Organization:
>Environment:
System: Linux speedy 2.4.18-5 #1 Mon Jun 10 15:31:48 EDT 2002 i686 unknown
Architecture: i686
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../gcc-3_2-branch/configure --enable-languages=c,c++ --prefix=/home/denys/src/GNU/GCC/install-3_2
>Description:
compiler issues incorrect warning about unreachable code (when
-O is supplied).  I don't know if it actually incorrectly deletes
code that it thinks is unreachable.
>How-To-Repeat:
Executing:
   c++ -O -Wunreachable-code -c foo.cc 
Prints:
   foo.cc: In function `bool foo(Node*)':
   foo.cc:11: warning: will never be executed
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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