[PATCH] D110579: [AMDGPU] Add two new intrinsics to control fp_trunc rounding mode

[Julien Pagès via Phabricator via llvm-commits]

jpages updated this revision to Diff 378283.
jpages added a comment.

Rebased based on Jay's comments.

The consequence of this change is the use of setreg instead of s_round_mode in the codegen. But it's probably better to not reinvent the wheel as this pass is already optimized to not insert too many setreg.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D110579/new/

https://reviews.llvm.org/D110579

Files:
  llvm/include/llvm/IR/Intrinsics.td
  llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
  llvm/lib/Target/AMDGPU/SIISelLowering.h
  llvm/lib/Target/AMDGPU/SIInstructions.td
  llvm/lib/Target/AMDGPU/SIModeRegister.cpp
  llvm/test/CodeGen/AMDGPU/llvm.experimental.fptrunc.round.ll

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