[PATCH] D100980: [OpenCL] Allow use of double type without extension pragma

[Anton Zabaznov via Phabricator via cfe-commits]

azabaznov added a comment.

> For cl_khr_fp64 I still want to keep the pragma for the other use case - to convert double literal into single-precision (https://github.com/KhronosGroup/OpenCL-Docs/issues/578). The reason why I think it could be useful is that the precision change might lead to a different result depending on the precision of the calculation. So I think pragmas could be useful to control whether double literal is single-precision or not to avoid this problem occur when code is compiled for different targets?

Yeah, then we should  use `S.getOpenCLOptions().isAvailableOption("cl_khr_fp64", S.getLangOpts())` to check for enabled pragma. And do I understand correctly that the pragma is not needed in OpenCL C 1.2+ since extension became core?


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  https://reviews.llvm.org/D100980/new/

https://reviews.llvm.org/D100980