[all-commits] [llvm/llvm-project] 984a49: AMDGPU/GlobalISel: Fix using unlegalizable values ...

[Matt Arsenault via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 984a499f9dff0fd16a6d4591970a58fabf966c4c
      https://github.com/llvm/llvm-project/commit/984a499f9dff0fd16a6d4591970a58fabf966c4c
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2020-08-25 (Tue, 25 Aug 2020)

  Changed paths:
    M llvm/test/CodeGen/AMDGPU/GlobalISel/artifact-combiner-unmerge-values.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-bitcast.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-build-vector.s16.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fabs.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fcanonicalize.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fcmp.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fcos.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fdiv.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-ffloor.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fneg.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fsin.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-fsqrt.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-smax.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-smin.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-trunc.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umax.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-umin.mir

  Log Message:
  -----------
  AMDGPU/GlobalISel: Fix using unlegalizable values in tests

Implicit uses of non-register value types places impossible to satisfy
constraints on the legalizer / artifact combiner. These prevent
writing sensible legalize rules for the artifacts without triggering
infinite loops in the legalizer.

The verifier really needs to enforce this, but I'm not sure what the
exact conditions would look like yet.