Re: toolchain/45673: gcc on i386 current generates bad code for assembler code in lock.h

["Kai-Uwe Eckhardt" <kuehro%gmx.de@localhost>]

The following reply was made to PR toolchain/45673; it has been noted by GNATS.

From: "Kai-Uwe Eckhardt" <kuehro%gmx.de@localhost>
To: gnats-bugs%NetBSD.org@localhost, netbsd-bugs%netbsd.org@localhost, 
gnats-admin%netbsd.org@localhost,
 toolchain-manager%netbsd.org@localhost
Cc: 
Subject: Re: toolchain/45673: gcc on i386 current generates bad code for
 assembler code in lock.h
Date: Mon, 12 Mar 2012 17:59:27 +0100

 >  That restricts it more than necessary, doesn't it? I think the correct
 >  constraint here "=qQ", since both l and h registers are allowed.
 >  
 >  Joerg
 
 
 Yes, you are right and I tested it successfully on amd64 with -m32
 -march=i486  -mtune=nocona just to be sure. This is a bug of gcc in
 my opinion, so can't be sure without trying ;-) Don't have a i386 system
 handy to test it there before tomorrow.
 
 Kai-Uwe
 
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