llvm-project

a04580f7 - [AMDGPU] Implement vop3p complex pattern optmization for gisel (#130234)

[AMDGPU] Implement vop3p complex pattern optmization for gisel (#130234) Seeking opportunities to optimize VOP3P instructions by altering opsel, opsel_hi, neg, neg_hi bits Tests differences: 1. fix op_sel_hi bit for inline constant: 1. `CodeGen/AMDGPU/packed-fp32.ll` 2. use neg bit to remove xor with 0x80008000 1. `CodeGen/AMDGPU/strict_fsub.f16.ll` 2. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.fdot2.ll` 3. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot4.ll` 4. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot8.ll` 5. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot2.ll` 6. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot4.ll` 7. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.udot8.ll` 3. Remove xor 0x80008000, and use opsel, opsel_hi to remove alignbit 1. `CodeGen/AMDGPU/GlobalISel/llvm.amdgcn.sdot2.ll`