Re: c++/8040: g++ with -O3 produces duplicate symbol

Re: c++/8040: g++ with -O3 produces duplicate symbol

[rth]

Synopsis: g++ with -O3 produces duplicate symbol

State-Changed-From-To: open->closed
State-Changed-By: rth
State-Changed-When: Thu Sep 26 20:18:28 2002
State-Changed-Why:
    Not a bug.  You can't define symbols in inline assembly like that.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8040

Re: c++/8040: g++ with -O3 produces duplicate symbol

[Andrew Pinski]

The following reply was made to PR c++/8040; it has been noted by GNATS.

From: Andrew Pinski <pinskia@physics.uc.edu>
To: bdubbs@swbell.net, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
   gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org
Cc:  
Subject: Re: c++/8040: g++ with -O3 produces duplicate symbol
Date: Wed, 25 Sep 2002 20:05:10 -0700

 Looks to be inlining the function rgb2yuv16bit_mmx422_row into x which  
 is valid but I think your use of asm is invalid.
 
 Thanks,
 Andrew Pinski
 
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit- 
 trail&database=gcc&pr=8040
 

c++/8040: g++ with -O3 produces duplicate symbol

[bdubbs]

>Number:         8040
>Category:       c++
>Synopsis:       g++ with -O3 produces duplicate symbol
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 25 09:26:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Bruce Dubbs
>Release:        GCC 3.2
>Organization:
>Environment:
i686 Pentium III (Coppermine)
>Description:
Compiler output:
x.s: Assembler messages:
x.s:33: Error: symbol `rgb2yuv16_422' is already defined

x.ii:
# 1 "x.cpp"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "x.cpp"
void x();
void rgb2yuv16bit_mmx422_row();
 
void x()
{
  rgb2yuv16bit_mmx422_row();
}
 
void rgb2yuv16bit_mmx422_row()
{
  __asm__ __volatile__ (
  "rgb2yuv16_422:\n"
  );
}
>How-To-Repeat:
g++ -O3  x.cpp -save-temps
>Fix:

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