diff --git a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp index ec5c5bb349ac4..a44a247184ea5 100644 --- a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp +++ b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp @@ -899,7 +899,7 @@ void SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB, } if (DestReg == AMDGPU::VCC) { - if (AMDGPU::SReg_64RegClass.contains(SrcReg)) { + if (AMDGPU::SReg_64_EncodableRegClass.contains(SrcReg)) { BuildMI(MBB, MI, DL, get(AMDGPU::S_MOV_B64), AMDGPU::VCC) .addReg(SrcReg, getKillRegState(KillSrc)); } else { diff --git a/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir b/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir index 9553fcc1c51c8..f11fe4aa6e00e 100644 --- a/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir +++ b/llvm/test/CodeGen/AMDGPU/sgpr-phys-copy.mir @@ -58,6 +58,15 @@ body: | $sgpr0_sgpr1 = COPY $src_shared_base ... +--- +name: src_shared_base_to_vcc +body: | + bb.0: + ; GFX9-LABEL: name: src_shared_base_to_vcc + ; GFX9: $vcc = S_MOV_B64 $src_shared_base + $vcc = COPY $src_shared_base +... + --- name: sgpr96_aligned_src_dst body: |