I am studying some research about QEMU's TCG and also trace a part of code translating TCG IRs to QEMU's host instructions recently.
I found that TCG use integer instructions to simulate the guest's floating point instructions instead of exploiting the FPU instructions supported by the host.
Is the reason in order to fit the result which the same program runs on the simulated machine?
Any help appreciated.
Thank you very much,
Alvin