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Re: gas for itanium: ia64-ic.tbl: dependency bug due to error in the ita

From: Jim Wilson
Subject: Re: gas for itanium: ia64-ic.tbl: dependency bug due to error in the itanium specification
Date: Fri, 03 Aug 2007 11:56:02 -0700

On Thu, 2007-08-02 at 14:18 +0200, Lars wrote:
> in the group 'fp-non-arith', xma is listed, but not xmpy. hence simply
> adding also xmpy there will do the trick.

This is correct.  This is a bug in the Intel documentation.  HJ, can you
report this internally within Intel to get the docs fixed?

Additionally, I noticed that the class pr-readers-nobr-nomovpr contains
fp-non-arith in addition to xma and xmpy which is redundant.  The xma
and xmpy could be deleted here.  This is a harmless error though.

I wrote a patch to fix gas.  I just fixed the fp-non-arith problem, I
didn't bother with the other one as it doesn't matter.  With this patch,
I now get the following objdump -d output for the assembled testcase,
which is correct.
   0:   0f 30 3c 00 e1 18       [MMF]       setf.sig f6=r15
   6:   70 80 00 c2 31 00                   setf.sig f7=r16
   c:   00 00 04 00                         nop.f 0x0;;
  10:   0d 00 00 00 01 00       [MFI]       nop.m 0x0
  16:   50 00 18 0e 74 00                   xmpy.l f5=f6,f7
  1c:   00 00 04 00                         nop.i 0x0;;
  20:   01 70 14 00 e1 10       [MII]       getf.sig r14=f5
  26:   00 00 00 02 00 00                   nop.i 0x0
  2c:   00 00 04 00                         nop.i 0x0;;

When regenerating ia64-asmtab.c, I noticed that a newline was
accidentally deleted when the copyright messages were updated, so I
included that in my patch too.

The patch was tested with make check on an x86_64-linux host and checked
Jim Wilson, GNU Tools Support, http://www.specifix.com

Attachment: xmpy.patch
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