1 //===-- AMDGPUMachineFunctionInfo.h -------------------------------*- C++ -*-=//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUMACHINEFUNCTION_H
11 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUMACHINEFUNCTION_H
12 
13 #include "llvm/CodeGen/MachineFunction.h"
14 #include "llvm/ADT/DenseMap.h"
15 
16 namespace llvm {
17 
18 class AMDGPUMachineFunction : public MachineFunctionInfo {
19   /// A map to keep track of local memory objects and their offsets within the
20   /// local memory space.
21   SmallDenseMap<const GlobalValue *, unsigned, 4> LocalMemoryObjects;
22 
23   uint64_t KernArgSize;
24   unsigned MaxKernArgAlign;
25 
26   /// Number of bytes in the LDS that are being used.
27   unsigned LDSSize;
28 
29   // FIXME: This should probably be removed.
30   /// Start of implicit kernel args
31   unsigned ABIArgOffset;
32 
33   bool IsKernel;
34 
35 public:
36   AMDGPUMachineFunction(const MachineFunction &MF);
37 
38   uint64_t allocateKernArg(uint64_t Size, unsigned Align) {
39     assert(isPowerOf2_32(Align));
40     KernArgSize = alignTo(KernArgSize, Align);
41 
42     uint64_t Result = KernArgSize;
43     KernArgSize += Size;
44 
45     MaxKernArgAlign = std::max(Align, MaxKernArgAlign);
46     return Result;
47   }
48 
49   uint64_t getKernArgSize() const {
50     return KernArgSize;
51   }
52 
53   void setABIArgOffset(unsigned NewOffset) {
54     ABIArgOffset = NewOffset;
55   }
56 
57   unsigned getABIArgOffset() const {
58     return ABIArgOffset;
59   }
60 
61   unsigned getLDSSize() const {
62     return LDSSize;
63   }
64 
65   bool isKernel() const {
66     return IsKernel;
67   }
68 
69   unsigned allocateLDSGlobal(const DataLayout &DL, const GlobalValue &GV);
70 };
71 
72 }
73 #endif
74