[ILUG] disturbing gcc 2.8.1 and glibc2.1 issue

[Caolan McNamara]

I have an odd one here, 

"gcc: Internal compiler error: program cc1 got fatal signal 6"

Happened after I upgraded my glibc to 2.1 . My gcc (2.8.1) appears
to have some difficulties with optimization and floating point numbers.

the following code triggers it

#include <math.h>
void testy(float b,float c);

void test()
{
  double
    amount,
    x_distance,
    y_distance,
    y_scale,
    factor,
    factor2;

    factor=pow(factor,-amount);
    testy(x_distance,
    y_scale+y_distance);
}

when compiled with 
gcc -O -c effects3.c -o effects3.o

Works fine without -O and works fine with -O2, also works fine if you modify
the code above in about any conceivable way. Tres odd. I can easily work around
it by using -O2 which I intended to use anyway. Just thought Id share.

C.

Real Life: Caolan McNamara           *  Doing: MSc in HCI
Work: Caolan.McNamara at ul.ie          *  Phone: +353-86-8790257
URL: http://www.csn.ul.ie/~caolan    *  Sig: an oblique strategy
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