uclibc + gcc 4.1.0 + fast-math crash

[Peter S. Mazinger]

On Sun, 12 Mar 2006, Amir Shalem wrote:

> Hey
> 
> 
> using a fresh buildroot with fresh uclibc snapshot + gcc 4.1.0 release
> when compiling any program (empty) using fast-math I get a crash.
> 
> 
> a.c:
>     int main(void) { return 0; }
> 
> 
> $ gcc -o a a.c -ffast-math && ./a
> and watch it crash.
> 
> 
> the crash happens at gcc fast-math code at ../gcc/config/i386/crtfastmath.c at line 97
> which execute the "fxsave".
> 
> 
> but if I'm copying crtfastmath.c code into a program (main.c)
> and compile it with out fast-math, it does not crash the program.
> 
> also, this crash happens with uclibc 0.9.28 too,
> and if I'm compiling gcc 4.1.0 with glibc it does not crash with fast-math.
> 
> 
> thanks,
> amir.

indeed 4.1.0 crashes, but none of 3.4.5/3.4.6/4.0.2/4.0.3

Peter

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Peter S. Mazinger <ps dot m at gmx dot net>           ID: 0xA5F059F2
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