AMDGPUFrameLowering.h revision 360784
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 17#include "llvm/CodeGen/TargetFrameLowering.h" 18 19namespace 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. 26class AMDGPUFrameLowering : public TargetFrameLowering { 27public: 28 AMDGPUFrameLowering(StackDirection D, Align StackAl, int LAO, 29 Align TransAl = Align::None()); 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 40