LLVM  9.0.0svn
AMDGPUFrameLowering.h
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1 //===--------------------- AMDGPUFrameLowering.h ----------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 /// \file
10 /// Interface to describe a layout of a stack frame on an AMDGPU target.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H
15 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H
16 
18 
19 namespace llvm {
20 
21 /// Information about the stack frame layout on the AMDGPU targets.
22 ///
23 /// It holds the direction of the stack growth, the known stack alignment on
24 /// entry to each function, and the offset to the locals area.
25 /// See TargetFrameInfo for more comments.
27 public:
28  AMDGPUFrameLowering(StackDirection D, unsigned StackAl, int LAO,
29  unsigned TransAl = 1);
30  ~AMDGPUFrameLowering() override;
31 
32  /// \returns The number of 32-bit sub-registers that are used when storing
33  /// values to the stack.
34  unsigned getStackWidth(const MachineFunction &MF) const;
35 };
36 
37 } // end namespace llvm
38 
39 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H
This class represents lattice values for constants.
Definition: AllocatorList.h:23
AMDGPUFrameLowering(StackDirection D, unsigned StackAl, int LAO, unsigned TransAl=1)
Information about stack frame layout on the target.
static GCRegistry::Add< StatepointGC > D("statepoint-example", "an example strategy for statepoint")
Information about the stack frame layout on the AMDGPU targets.
unsigned getStackWidth(const MachineFunction &MF) const