[all-commits] [llvm/llvm-project] ddb548: [AMDGPU][True16][MC] added VOPC realtrue/faketrue ...

[Brox Chen via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ddb5480e6799d0de72c2cd34c1e7f9ffd154e660
      https://github.com/llvm/llvm-project/commit/ddb5480e6799d0de72c2cd34c1e7f9ffd154e660
  Author: Brox Chen <guochen2 at amd.com>
  Date:   2024-08-21 (Wed, 21 Aug 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/VOPCInstructions.td
    M llvm/test/CodeGen/AMDGPU/GlobalISel/inst-select-fcmp.s16.mir

  Log Message:
  -----------
  [AMDGPU][True16][MC] added VOPC realtrue/faketrue flag and fake16 instructions (#104739)

VOPC instructions were defined with HasTrue16BitInst flag while these
true16 instructions are actually implemented with fake16 profile.
Seperate them to true16 version and fake16 version by adding
UseRealTrue16 and UseFakeTrue16 flag and fake16 instructions.

The code default to use fake16. This is preparing for the upcoming
changes in MC to support realtrue 16bit operands and vdst. The true16
and fake16 profile will be modified in the later patches.



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