[Bug target/16130] [3.4 Regression]: Gcc 3.4 ICE on valid code

[wilson at specifixinc dot com]

------- Additional Comments From wilson at specifixinc dot com  2004-06-29 17:14 -------
Subject: Re:  [3.4 Regression]: Gcc 3.4 ICE on valid code

On Fri, 2004-06-25 at 00:44, hjl at lucon dot org wrote:
> I noticed those regressions while compiling 2.6.7 kernel for Itantium 1. I
> agree that a single bug report is better than many separate ones in this
> case. But I was told that I should open separate ones.

You were asked to file separate bug reports because you never clearly
stated that all of the bug reports were linux kernel compilation
problems.  It was obvious to me, but it wasn't obvious to others.  So it
looked like you were filing unrelated bugs together which is bad.  You
also made the mistake of adding new testcases to a bug that was already
closed, without explaining why.

I see you have filed a new meta-bug 16278 for this.  Thanks.  It would
have been better if you mentioned how to configure the linux kernel to
reproduce the error though.  You have to explicitly enable the Itanium1
support when configuring the linux kernel, and then that automatically
adds the -mtune=merced option to CFLAGS.

> Binutils is different. People with Itanium 1 machines still need improved
> assembler and linker. But they don't necessarily need to upgrade gcc.

If you are assuming that a new binutils will work with an old gcc, then
I think you are wrong.  The interfaces between binutils and gcc change
occasionally, and we can not support using mismatched versions.  If we
are telling people to use old gcc releases, then we must also tell them
to use old binutils releases that worked with that old gcc release.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16130