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* Re: target/9594: [3.3/3.4 regression] [sh4-elf] Assembler complai ns pcrel too far.
@ 2003-04-29 6:56 Naveen Sharma, Noida
0 siblings, 0 replies; only message in thread
From: Naveen Sharma, Noida @ 2003-04-29 6:56 UTC (permalink / raw)
To: amylaar; +Cc: gcc-prs
The following reply was made to PR target/9594; it has been noted by GNATS.
From: "Naveen Sharma, Noida" <naveens@noida.hcltech.com>
To: amylaar@gcc.gnu.org, gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org,
nobody@gcc.gnu.org,
"Sanjiv Kumar Gupta, Noida"
<sanjivg@noida.hcltech.com>,
gcc-gnats@gcc.gnu.org
Cc: kkojima@gcc.gnu.org, aoliva@redhat.com
Subject: Re: target/9594: [3.3/3.4 regression] [sh4-elf] Assembler complai
ns pcrel too far.
Date: Tue, 29 Apr 2003 12:09:27 +0530
Hi,
> Synopsis: [3.3/3.4 regression] [sh4-elf] Assembler complains
> pcrel too far.
>
> Responsible-Changed-From-To: unassigned->amylaar
> Responsible-Changed-By: amylaar
> Responsible-Changed-When: Mon Apr 28 13:07:29 2003
> Responsible-Changed-Why:
> Because I fixed this problem.
> State-Changed-From-To: open->feedback
> State-Changed-By: amylaar
> State-Changed-When: Mon Apr 28 13:07:29 2003
> State-Changed-Why:
> Fixed on 15th April in mainline and 3.3 branch.
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&
> database=gcc&pr=9594
Thanks,
The patch fixes the problem. So this PR may be closed
On a related note, I notice that gcc is known to generate
out of bound branches for SH.
http://gcc.gnu.org/ml/gcc-patches/2002-01/msg00818.html
http://gcc.gnu.org/ml/gcc-bugs/2002-06/msg00896.html
From the discussion thread following the latter, it seems
there needs to be some design changes to solve these sort
of problems. In this message
http://gcc.gnu.org/ml/gcc-patches/2002-11/msg00192.html
You suggest to "marry" the local constant pool generation
with an early branch shortening pass.
I would like to analyse this more, and implement it, if this can
avoid problems of this nature. What do you think ?
Best Regards,
Naveen Sharma.
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