llvm/lib/Target/AMDGPU/AMDGPUTargetObjectFile.h
Yaxun Liu ab3be33d40 [AMDGPU] Get address space mapping by target triple environment
As we introduced target triple environment amdgiz and amdgizcl, the address
space values are no longer enums. We have to decide the value by target triple.

The basic idea is to use struct AMDGPUAS to represent address space values.
For address space values which are not depend on target triple, use static
const members, so that they don't occupy extra memory space and is equivalent
to a compile time constant.

Since the struct is lightweight and cheap, it can be created on the fly at
the point of usage. Or it can be added as member to a pass and created at
the beginning of the run* function.

Differential Revision: https://reviews.llvm.org/D31284


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298846 91177308-0d34-0410-b5e6-96231b3b80d8
2017-03-27 14:04:01 +00:00

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//===-- AMDGPUTargetObjectFile.h - AMDGPU Object Info ----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
///
/// \file
/// \brief This file declares the AMDGPU-specific subclass of
/// TargetLoweringObjectFile.
///
//===----------------------------------------------------------------------===//
#ifndef LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETOBJECTFILE_H
#define LLVM_LIB_TARGET_AMDGPU_AMDGPUTARGETOBJECTFILE_H
#include "AMDGPU.h"
#include "llvm/CodeGen/TargetLoweringObjectFileImpl.h"
#include "llvm/Target/TargetMachine.h"
namespace llvm {
class AMDGPUTargetObjectFile : public TargetLoweringObjectFileELF {
public:
MCSection *SelectSectionForGlobal(const GlobalObject *GO, SectionKind Kind,
const TargetMachine &TM) const override;
};
} // end namespace llvm
#endif