1 //===-- AMDGPUMachineFunctionInfo.cpp ---------------------------------------=//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "AMDGPUMachineFunction.h"
11 #include "AMDGPUSubtarget.h"
15 AMDGPUMachineFunction::AMDGPUMachineFunction(const MachineFunction &MF) :
16 MachineFunctionInfo(),
22 IsKernel(MF.getFunction()->getCallingConv() == CallingConv::AMDGPU_KERNEL ||
23 MF.getFunction()->getCallingConv() == CallingConv::SPIR_KERNEL) {
24 // FIXME: Should initialize KernArgSize based on ExplicitKernelArgOffset,
25 // except reserved size is not correctly aligned.
28 unsigned AMDGPUMachineFunction::allocateLDSGlobal(const DataLayout &DL,
29 const GlobalValue &GV) {
30 auto Entry = LocalMemoryObjects.insert(std::make_pair(&GV, 0));
32 return Entry.first->second;
34 unsigned Align = GV.getAlignment();
36 Align = DL.getABITypeAlignment(GV.getValueType());
38 /// TODO: We should sort these to minimize wasted space due to alignment
39 /// padding. Currently the padding is decided by the first encountered use
41 unsigned Offset = LDSSize = alignTo(LDSSize, Align);
43 Entry.first->second = Offset;
44 LDSSize += DL.getTypeAllocSize(GV.getValueType());