TM4C1294NCPDT: It does not make floating-point arithmetic in TI enet_s2e project Demo

Hi, TI E2E teams,

I used the EK-TM4C1294XL TM4C1294 Connected LaunchPad Board to do experiment, I reference the www.ti.com/.../spma072.pdf , I import the enet_s2e project in CCS, I want to use it to do some experiment because it has FreeRTOS and lwip stack.

I add some floating-point operations in the project,  but I find the floating-point operations code would be skipped when I debug in project,  as below,

so I enable the FPU, but it is the same, when I debug the code step by step, the floating-point operation code is skipped directly,

I have found many documents, but the issue is not solved, so I take the issue in TI E2E support forums for help.

I am looking for your responds as soon as possible.

Regards,

eric