[all-commits] [llvm/llvm-project] 9fc2be: [mir] Fix confusing MIR when MMO's value is nullpt...

[Daniel Sanders via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9fc2be6f289e25a94f4b938f8199f5d470f8a43e
      https://github.com/llvm/llvm-project/commit/9fc2be6f289e25a94f4b938f8199f5d470f8a43e
  Author: Daniel Sanders <daniel_l_sanders at apple.com>
  Date:   2021-03-04 (Thu, 04 Mar 2021)

  Changed paths:
    M llvm/lib/CodeGen/MIRParser/MIParser.cpp
    M llvm/lib/CodeGen/MachineOperand.cpp
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-fpext.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-fptrunc.mir
    M llvm/test/CodeGen/AArch64/GlobalISel/legalize-load-store.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-extract-vector-elt.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-insert-vector-elt.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant-32bit.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-constant.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-flat.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-global.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-local.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-load-private.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sextload-constant-32bit.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-sextload-global.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-store-global.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-store.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-zextload-constant-32bit.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/legalize-zextload-global.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.s.buffer.load.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-amdgcn.s.buffer.load.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-load.mir
    M llvm/test/CodeGen/AMDGPU/GlobalISel/regbankselect-split-scalar-load-metadata.mir
    M llvm/test/CodeGen/ARM/GlobalISel/arm-legalize-load-store.mir
    A llvm/test/CodeGen/MIR/AArch64/base-memoperands.mir
    M llvm/test/CodeGen/PowerPC/aix-cc-abi.ll
    M llvm/test/CodeGen/PowerPC/aix-vec-arg-spills-mir.ll
    M llvm/test/CodeGen/X86/GlobalISel/legalize-memop-scalar-32.mir
    M llvm/test/CodeGen/X86/GlobalISel/legalize-undef.mir
    M llvm/unittests/CodeGen/GlobalISel/LegalizerTest.cpp

  Log Message:
  -----------
  [mir] Fix confusing MIR when MMO's value is nullptr but offset is non-zero

:: (store 1 + 4, addrspace 1)
->
:: (store 1 into undef + 4, addrspace 1)

An offset without a base isn't terribly useful but it's convenient to update
the offset without checking the value. For example, when breaking apart
stores into smaller units

Differential Revision: https://reviews.llvm.org/D97812