1 //===--------------------- AMDGPUFrameLowering.h ----------------*- C++ -*-===//
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 //===----------------------------------------------------------------------===//
11 /// \brief Interface to describe a layout of a stack frame on an AMDGPU target.
13 //===----------------------------------------------------------------------===//
15 #ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H
16 #define LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H
18 #include "llvm/Target/TargetFrameLowering.h"
22 /// \brief Information about the stack frame layout on the AMDGPU targets.
24 /// It holds the direction of the stack growth, the known stack alignment on
25 /// entry to each function, and the offset to the locals area.
26 /// See TargetFrameInfo for more comments.
27 class AMDGPUFrameLowering : public TargetFrameLowering {
29 AMDGPUFrameLowering(StackDirection D, unsigned StackAl, int LAO,
30 unsigned TransAl = 1);
31 ~AMDGPUFrameLowering() override;
33 /// \returns The number of 32-bit sub-registers that are used when storing
34 /// values to the stack.
35 unsigned getStackWidth(const MachineFunction &MF) const;
37 bool hasFP(const MachineFunction &MF) const override {
42 } // end namespace llvm
44 #endif // LLVM_LIB_TARGET_AMDGPU_AMDGPUFRAMELOWERING_H