148   AMDGPUFunctionArgInfo AI;  in fixedABILayout()  local
149   AI.PrivateSegmentBuffer  in fixedABILayout()
151   AI.DispatchPtr = ArgDescriptor::createRegister(AMDGPU::SGPR4_SGPR5);  in fixedABILayout()
152   AI.QueuePtr = ArgDescriptor::createRegister(AMDGPU::SGPR6_SGPR7);  in fixedABILayout()
156   AI.ImplicitArgPtr = ArgDescriptor::createRegister(AMDGPU::SGPR8_SGPR9);  in fixedABILayout()
157   AI.DispatchID = ArgDescriptor::createRegister(AMDGPU::SGPR10_SGPR11);  in fixedABILayout()
160   AI.WorkGroupIDX = ArgDescriptor::createRegister(AMDGPU::SGPR12);  in fixedABILayout()
161   AI.WorkGroupIDY = ArgDescriptor::createRegister(AMDGPU::SGPR13);  in fixedABILayout()
162   AI.WorkGroupIDZ = ArgDescriptor::createRegister(AMDGPU::SGPR14);  in fixedABILayout()
165   AI.WorkItemIDX = ArgDescriptor::createRegister(AMDGPU::VGPR31, Mask);  in fixedABILayout()
166   AI.WorkItemIDY = ArgDescriptor::createRegister(AMDGPU::VGPR31, Mask << 10);  in fixedABILayout()
167   AI.WorkItemIDZ = ArgDescriptor::createRegister(AMDGPU::VGPR31, Mask << 20);  in fixedABILayout()
168   return AI;  in fixedABILayout()