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llvm/lib/Target/AMDGPU/GCNDPPCombine.cpp
| Show First 20 Lines • Show All 551 Lines • ▼ Show 20 Lines | bool GCNDPPCombine::runOnMachineFunction(MachineFunction &MF) { | ||||
| bool Changed = false; | bool Changed = false; | ||||
| for (auto &MBB : MF) { | for (auto &MBB : MF) { | ||||
| for (auto I = MBB.rbegin(), E = MBB.rend(); I != E;) { | for (auto I = MBB.rbegin(), E = MBB.rend(); I != E;) { | ||||
| auto &MI = *I++; | auto &MI = *I++; | ||||
| if (MI.getOpcode() == AMDGPU::V_MOV_B32_dpp && combineDPPMov(MI)) { | if (MI.getOpcode() == AMDGPU::V_MOV_B32_dpp && combineDPPMov(MI)) { | ||||
| Changed = true; | Changed = true; | ||||
| ++NumDPPMovsCombined; | ++NumDPPMovsCombined; | ||||
| } else if (MI.getOpcode() == AMDGPU::V_MOV_B64_DPP_PSEUDO) { | |||||
| auto Split = TII->expandMovDPP64(MI); | |||||
| for (auto M : { Split.first, Split.second }) { | |||||
| if (combineDPPMov(*M)) | |||||
| ++NumDPPMovsCombined; | |||||
| } | |||||
| Changed = true; | |||||
| } | } | ||||
| } | } | ||||
| } | } | ||||
| return Changed; | return Changed; | ||||
| } | } | ||||
vpykhtin: Changed should depend on the Split done. | |||||
Changed should depend on the Split done.