diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/SIInstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/SIInstrInfo.cpp | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp index cda8069..46757cf 100644 --- a/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp +++ b/llvm/lib/Target/AMDGPU/SIInstrInfo.cpp @@ -3433,6 +3433,32 @@ bool SIInstrInfo::isFoldableCopy(const MachineInstr &MI) { } } +unsigned SIInstrInfo::getFoldableCopySrcIdx(const MachineInstr &MI) { + switch (MI.getOpcode()) { + case AMDGPU::V_MOV_B16_t16_e32: + case AMDGPU::V_MOV_B16_t16_e64: + return 2; + case AMDGPU::V_MOV_B32_e32: + case AMDGPU::V_MOV_B32_e64: + case AMDGPU::V_MOV_B64_PSEUDO: + case AMDGPU::V_MOV_B64_e32: + case AMDGPU::V_MOV_B64_e64: + case AMDGPU::S_MOV_B32: + case AMDGPU::S_MOV_B64: + case AMDGPU::S_MOV_B64_IMM_PSEUDO: + case AMDGPU::COPY: + case AMDGPU::WWM_COPY: + case AMDGPU::V_ACCVGPR_WRITE_B32_e64: + case AMDGPU::V_ACCVGPR_READ_B32_e64: + case AMDGPU::V_ACCVGPR_MOV_B32: + case AMDGPU::AV_MOV_B32_IMM_PSEUDO: + case AMDGPU::AV_MOV_B64_IMM_PSEUDO: + return 1; + default: + llvm_unreachable("MI is not a foldable copy"); + } +} + static constexpr AMDGPU::OpName ModifierOpNames[] = { AMDGPU::OpName::src0_modifiers, AMDGPU::OpName::src1_modifiers, AMDGPU::OpName::src2_modifiers, AMDGPU::OpName::clamp, |