Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp

@@ -0,0 +1,47 @@
+//===-- AMDGPUMachineFunctionInfo.cpp ---------------------------------------=//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "AMDGPUMachineFunction.h"
+#include "AMDGPUSubtarget.h"
+
+using namespace llvm;
+
+AMDGPUMachineFunction::AMDGPUMachineFunction(const MachineFunction &MF) :
+  MachineFunctionInfo(),
+  LocalMemoryObjects(),
+  KernArgSize(0),
+  MaxKernArgAlign(0),
+  LDSSize(0),
+  ABIArgOffset(0),
+  IsEntryFunction(AMDGPU::isEntryFunctionCC(MF.getFunction().getCallingConv())),
+  NoSignedZerosFPMath(MF.getTarget().Options.NoSignedZerosFPMath) {
+  // FIXME: Should initialize KernArgSize based on ExplicitKernelArgOffset,
+  // except reserved size is not correctly aligned.
+}
+
+unsigned AMDGPUMachineFunction::allocateLDSGlobal(const DataLayout &DL,
+                                                  const GlobalValue &GV) {
+  auto Entry = LocalMemoryObjects.insert(std::make_pair(&GV, 0));
+  if (!Entry.second)
+    return Entry.first->second;
+
+  unsigned Align = GV.getAlignment();
+  if (Align == 0)
+    Align = DL.getABITypeAlignment(GV.getValueType());
+
+  /// TODO: We should sort these to minimize wasted space due to alignment
+  /// padding. Currently the padding is decided by the first encountered use
+  /// during lowering.
+  unsigned Offset = LDSSize = alignTo(LDSSize, Align);
+
+  Entry.first->second = Offset;
+  LDSSize += DL.getTypeAllocSize(GV.getValueType());
+
+  return Offset;
+}