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* c++/8040: g++ with -O3 produces duplicate symbol
@ 2002-09-25 9:26 bdubbs
0 siblings, 0 replies; 3+ messages in thread
From: bdubbs @ 2002-09-25 9:26 UTC (permalink / raw)
To: gcc-gnats
>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:
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c++/8040: g++ with -O3 produces duplicate symbol
@ 2002-09-26 20:18 rth
0 siblings, 0 replies; 3+ messages in thread
From: rth @ 2002-09-26 20:18 UTC (permalink / raw)
To: bdubbs, gcc-bugs, gcc-prs, nobody
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
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c++/8040: g++ with -O3 produces duplicate symbol
@ 2002-09-25 20:06 Andrew Pinski
0 siblings, 0 replies; 3+ messages in thread
From: Andrew Pinski @ 2002-09-25 20:06 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
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
^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-09-25 9:26 c++/8040: g++ with -O3 produces duplicate symbol bdubbs
2002-09-25 20:06 Andrew Pinski
2002-09-26 20:18 rth
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