[SYCL][ESIMD][E2E] Disable warning in fast math test

[sarnex]

Can cause build to fail if using -Werror, so disable the warning.

[bader]

Fix -> Disable.

What is the root cause of the warning?

[sarnex]

We need to set some math flags in the test, and if you set some that are not compatible with the selected fp model, you get a warning and the model is overriden.

In our internal compiler, we set -fcomplex-arithmetic=promoted by default, and the options in this test cause it to be dropped to -fcomplex-arithmetic=basic, so we get this warning:

error: overriding '-fcomplex-arithmetic=promoted' option with '-fcomplex-arithmetic=basic' [-Werror,-Woverriding-option]

[bader]

Are you saying that the compiler always returns a warning if -ffast-math is set? This sounds like a problem we better fix rather than ignore.

[sarnex]

It seems yes. I'll make an internal tracker, but since we are already testing with Werror, I think this workaround is worth submitting until the bigger issue is fixed

[sarnex]

It seems this will be fixed quickly internally, so closing this