Floating-point exception interrupts not working

Hello
I tried to activate the System Exception Module for the FPU on a TM4C1294NCPDT. But it is just not entering the fault handler.
The IRQ is enabled via SysExcIntEnable(SYSEXC_INT_FP_DZC);
The fault handler is set in the startup file startup_rvmdk.S
Find attached the Project as zip file.

//*****************************************************************************
//
// The interrupt handler.
//
//*****************************************************************************
void FPU_Fault_Handler(void)
{
    uint32_t ui32IntFlags;
    
    ui32IntFlags = ROM_SysExcIntStatus(true);
    ROM_SysExcIntClear(ui32IntFlags);
    
    while(1)
    {
    }
}
//*****************************************************************************
//
// example
//
//*****************************************************************************
float test=0, test2;

int
main(void)
{
    //
    // Run from the PLL at 120 MHz.
    //
    MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
                                           SYSCTL_OSC_MAIN | SYSCTL_USE_PLL |
                                           SYSCTL_CFG_VCO_480), 120000000);

    ROM_SysExcIntEnable(SYSEXC_INT_FP_DZC);

 
    //
    // Enable processor interrupts.
    //
    IntMasterEnable();

    //
    // Loop forever
    //
    while(1)
    {    
        // devide by zero
        test2 = 1.0f/test;      
    }
}

fpu_fault.zip