After an update of the macOS base Bokken image, we started seeing a failing test in one of our CI jobs.

Basically it is a test that compares the results of a method compiled with IL2CPP and Burst, respectively. The issue appears to be very similar to this BUR-1860, but this time it happens on macOS.

I have been able to repro the issue locally on my M1 Mac with the attached `Repro.cs` (extracted from the test):
 
Running it with mono, we get:
$ csc -unsafe Repro.cs
$ mono Repro.exe
Result = 19893.5
This is the expected output. However, with {{il2cpp}} we get:
$ ../il2cpp/il2exe/bin/Release/net7.0/il2exe --executable=Repro.exe
$ Repro_native/Repro
Result = 5
Oddly enough, when compiling with {{Debug}} configuration:
$ ../il2cpp/il2exe/bin/Release/net7.0/il2exe --executable=Repro.exe --configuration=Debug
we get this:
$ Repro_native/Repro
Result = 19855
which is a bit closer to the correct result, but still not correct.
 
The issue is also reproducible on Intel Macs (with different results).