Re: optimization/7715: inlining of function with inline assembler causes duplicate assembler lables

Re: optimization/7715: inlining of function with inline assembler causes duplicate assembler lables

[paolo]

Synopsis: inlining of function with inline assembler causes duplicate assembler lables

Responsible-Changed-From-To: unassigned->paolo
Responsible-Changed-By: paolo
Responsible-Changed-When: Sat Aug 24 21:26:53 2002
Responsible-Changed-Why:
    .
State-Changed-From-To: open->closed
State-Changed-By: paolo
State-Changed-When: Sat Aug 24 21:26:53 2002
State-Changed-Why:
    Duplicate of optimization/7714.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7715

optimization/7715: inlining of function with inline assembler causes duplicate assembler lables

[linux_dr]

>Number:         7715
>Category:       optimization
>Synopsis:       inlining of function with inline assembler causes duplicate assembler lables
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          rejects-legal
>Submitter-Id:   net
>Arrival-Date:   Sat Aug 24 18:06:03 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Loren Osborn <linux_dr@yahoo.com>
>Release:        gcc 3.1.1
>Organization:
>Environment:
Linux Mandrake 8.1
>Description:
I found a similar bug to PR233, and was disappointed to
see that PR233 was closed, appearantly just because the
URL to the test case became a broken link.

I think I have found a manifistaion of the same bug, 
although it doesn't involve unrolling loops.  It involves 
inlining of functions with inline-assembler lables in it...

I have included a minimal test case 

As far as I am aware, the code itself (while not 
technically vailid ANSI C, because ANSI C doesn't 
explicitly allow inline assembler) should be valid in
gcc. 
>How-To-Repeat:
gcc -O3 -c -o InlineLableBug.o InlineLableBug.c
>Fix:
gcc should probably prepend (or append) a string to each assembler label that is unique to each instantiation of that function.
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="InlineLableBug.c"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="InlineLableBug.c"