[Bug c++/59922] New: -finstrument-functions emit false warning "control reaches end of non-void function"

["alex at alemate dot ru" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59922

            Bug ID: 59922
           Summary: -finstrument-functions emit false warning "control
                    reaches end of non-void function"
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alex at alemate dot ru

Example input:

---------- t.c ---------
int something();                                                                

int f(int arg) {                                                                
 return 0;                                                                      
 (void)(false ? 1 : something());                                               
}   
-----------------------

$ c++ -c t.cc -finstrument-functions -Wall -Werror
t.cc: In function ‘int f(int)’:
t.cc:6:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
$ echo $?
1
$

But:

$ c++ -c t.cc -Wall -Werror
$ echo $?
0
$
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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug ipa/59918] [4.9 Regression] ICE in record_target_from_binfo, at ipa-devirt.c:693
Date: Thu, 23 Jan 2014 16:20:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY918

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r206543.