jstest-gtk i386 axis bars not rendering correctly
Noticed this while testing some ioctls.
Correct (FEX + x86_64):
![Image_2021-09-11_02-33-54](https://user-images.githubusercontent.com/1018829/132943435-ef35f9f8-8272-427c-ad2c-8ab08d49c82c.png)

Incorrect (FEX + x86):
![Image_2021-09-11_02-33-14](https://user-images.githubusercontent.com/1018829/132943442-23f516ef-9790-4b28-8337-85a7092654f8.png)

This happens with both Interpreter and JIT. Likely a CPU emulation bug.