Date: Fri, 09 Aug 2002 18:08:35 +0200 From: Michael Nottebrock <michaelnottebrock@gmx.net> To: freebsd-current@FreeBSD.ORG Cc: Marc Recht <marc@informatik.uni-bremen.de> Subject: Re: Compiler error XFree86-Server Message-ID: <3D53E903.60302@gmx.net> References: <20020806230045.3EFF72DD@nebula.anchoragerescue.org> <3D5127D3.2030601@gmx.net> <20020809043953.GC980@dragon.nuxi.com> <3D534D0F.704@gmx.net> <20020809081355.754aca33.marc@informatik.uni-bremen.de> <20020809144713.GA3531@dragon.nuxi.com>
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David O'Brien wrote:
>>>I've got suggests that it's still present in all branches. I get the
>>>impression that not too many people really use gcc3 with heavy
>>>optimization on big stuff like XFree86 yet ... Of course, updating the
>>
>>XFree86 works like a charm built with -march=athlon-xp .
>
>
> I do know that compiling XFree86 with a June 2002 GCC 3.1.1 prerelease
> works fine on AMD x86-64 running SuSE with -O2 and -march specifying the
> Hammer.
You might want to try the attached code-snippet I grabbed from the gcc
GNATS. It manages to ICE 3.1 and 3.2 with a lot of optimizations,
including pentium2/3/4 and athlon-* and is believed to trigger the same
bug that borks XFree86 here.
Compile with gcc -O -march=<arch> -c clacrt.c
Regards,
--
Michael Nottebrock
"And the reasons? There are no reasons."
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name="clacrt.c"
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Content-Disposition: inline;
filename="clacrt.c"
void foo ()
{
struct { float x, y; } c, *cp;
static float z;
while (1)
{
c.y = cp->y + cp->y;
z = c.y + 1.0;
}
}
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