[PATCH] D68240: AMDGPU: Fix not using v_cvt_f16_[iu]16

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added a reviewer: rampitec.
Herald added subscribers: t-tye, tpr, dstuttard, yaxunl, nhaehnle, wdng, jvesely, kzhuravl.

We weren't treating i16->f16 casts as legal on targets with these
instructions, and always using a pair of casts through i32.


https://reviews.llvm.org/D68240

Files:
  lib/Target/AMDGPU/AMDGPUISelLowering.cpp
  lib/Target/AMDGPU/SIISelLowering.cpp
  test/CodeGen/AMDGPU/sdwa-peephole.ll
  test/CodeGen/AMDGPU/sitofp.f16.ll
  test/CodeGen/AMDGPU/uitofp.f16.ll

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