llvm/lib/Target/AMDGPU/SIFrameLowering.h
Konstantin Zhuravlyov 20c7a48718 [AMDGPU] Emit debugger prologue and emit the rest of the debugger fields in the kernel code header
Debugger prologue is emitted if -mattr=+amdgpu-debugger-emit-prologue.

Debugger prologue writes work group IDs and work item IDs to scratch memory at fixed location in the following format:
  - offset 0: work group ID x
  - offset 4: work group ID y
  - offset 8: work group ID z
  - offset 16: work item ID x
  - offset 20: work item ID y
  - offset 24: work item ID z

Set
  - amd_kernel_code_t::debug_wavefront_private_segment_offset_sgpr to scratch wave offset reg
  - amd_kernel_code_t::debug_private_segment_buffer_sgpr to scratch rsrc reg
  - amd_kernel_code_t::is_debug_supported to true if all debugger features are enabled

Differential Revision: http://reviews.llvm.org/D20335


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273769 91177308-0d34-0410-b5e6-96231b3b80d8
2016-06-25 03:11:28 +00:00

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//===--------------------- SIFrameLowering.h --------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
#define LLVM_LIB_TARGET_AMDGPU_SIFRAMELOWERING_H
#include "AMDGPUFrameLowering.h"
namespace llvm {
class SIFrameLowering final : public AMDGPUFrameLowering {
public:
SIFrameLowering(StackDirection D, unsigned StackAl, int LAO,
unsigned TransAl = 1) :
AMDGPUFrameLowering(D, StackAl, LAO, TransAl) {}
~SIFrameLowering() override {}
void emitPrologue(MachineFunction &MF,
MachineBasicBlock &MBB) const override;
void emitEpilogue(MachineFunction &MF,
MachineBasicBlock &MBB) const override;
void processFunctionBeforeFrameFinalized(
MachineFunction &MF,
RegScavenger *RS = nullptr) const override;
private:
/// \brief Emits debugger prologue.
void emitDebuggerPrologue(MachineFunction &MF, MachineBasicBlock &MBB) const;
};
}
#endif