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For the most common ones (such as fadd), we already did the promotion. Do the same thing for all the others. Currently, we'll just crash/assert on all these operations, as there's no hardware or libcall support whatsoever. f16 (half) is specified as an interchange - not arithmetic - format, and is expected to be promoted to single-precision for arithmetic operations. While there, teach the legalizer about promoting some of the (mostly floating-point) operations that we never needed before. Differential Revision: http://reviews.llvm.org/D8648 See related discussion on the thread for: http://reviews.llvm.org/D8755 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234550 91177308-0d34-0410-b5e6-96231b3b80d8
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