From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: WAW dependency messages
Date: Thu, 16 Oct 2003 01:49:33 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106626899327674@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106625678318659@msgid-missing>
>>>>> On Wed, 15 Oct 2003 16:51:44 -0700, "H. J. Lu" <hjl@lucon.org> said:
HJ> Kernel is a totally different issue. You can send me small asm
HJ> testcases. I will see what I can do.
Here is one that bugs me (adapted from fsys.S):
$ cat t.S
mov psr.l = r2;;
mov r25=ar.rnat
$ as -x t.S
/r/wailua/tmp/t.S: Assembler messages:
/r/wailua/tmp/t.S:3: Warning: Use of 'mov.m' violates RAW dependency 'PSR.si' (data)
/r/wailua/tmp/t.S:1: Warning: This is the location of the conflicting usage
$ as --version |head -1
GNU assembler 2.13.90 20030425
I think the warnings shows up because the assembler doesn't detect
that we're reading ar.rnat, not ar.itc.
--david
next prev parent reply other threads:[~2003-10-16 1:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-15 22:24 WAW dependency messages Jesse Barnes
2003-10-15 22:53 ` H. J. Lu
2003-10-15 23:14 ` Jesse Barnes
2003-10-15 23:51 ` H. J. Lu
2003-10-15 23:56 ` Jesse Barnes
2003-10-16 1:34 ` Chen, Kenneth W
2003-10-16 1:49 ` David Mosberger [this message]
2003-10-20 22:24 ` Jim Wilson
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