Merging r338554:

Merging r338554:
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r338554 | bryanpkc | 2018-08-01 15:50:29 +0200 (Wed, 01 Aug 2018) | 11 lines

[AArch64] Fix FCCMP with FP16 operands

Summary: This patch adds support for FCCMP instruction with FP16 operands, avoiding an assertion during instruction selection.

Reviewers: olista01, SjoerdMeijer, t.p.northover, javed.absar

Reviewed By: SjoerdMeijer

Subscribers: kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D50115
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_70@338692 91177308-0d34-0410-b5e6-96231b3b80d8