[PATCH] D44561: [ARM] Add HasFloat16 to TargetInfo

[Sjoerd Meijer via Phabricator via cfe-commits]

SjoerdMeijer created this revision.
SjoerdMeijer added reviewers: t.p.northover, samparker, olista01.
Herald added subscribers: kristof.beyls, javed.absar.

For generating NEON intrinsics, this determines the NEON data type, and
whether it should be a half type or an i16 type. I.e., we always pass a half
type for AArch64, this hasn't changed, but now also for ARM but only when
FullFP16 is enabled, and i16 otherwise.

      

This is intended to be non-functional change, but together with the backend
work in https://reviews.llvm.org/D44538 which adds support for f16 vectors,
this enables adding the AArch32 FP16 (vector) intrinsics.


https://reviews.llvm.org/D44561

Files:
  include/clang/Basic/TargetInfo.h
  lib/Basic/TargetInfo.cpp
  lib/Basic/Targets/ARM.cpp
  lib/Basic/Targets/ARM.h
  lib/CodeGen/CGBuiltin.cpp

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