[cfe-dev] -cl-denorms-are-zero no longer accepted in cc1 mode

[David Airlie via cfe-dev]

I've been working on the mesa clover (OpenCL) frontend code.

it calls
clang::CompilerInvocation::CreateFromArgs
to create a clang compiler, but it passes the arguments it receives
from the OpenCL clBuildProgram API (-cl-denorms-are-zero) being one.
It currently doesn't strip any of those args out.

Now I can prepare the args and strip that one out if necessary, though
I'm not quite sure what I need to pass instead (since I want to
generate llvm bytecode to pass to the llvm->spirv translator).

But I wanted to give a heads up to other OpenCL implementers that
might have the same pattern (passing the options straight to clang),
but also check if this is what we expect.

Thanks,
Dave.