llvm-project/clang/lib/CodeGen/CGOpenMPRuntimeAMDGCN.h
Saiyedul Islam 160ff83765 [OpenMP][AMDGCN] Support OpenMP offloading for AMDGCN architecture - Part 3
Provides AMDGCN and NVPTX specific specialization of getGPUWarpSize,
getGPUThreadID, and getGPUNumThreads methods. Adds tests for AMDGCN
codegen for these methods in generic and simd modes. Also changes the
precondition in InitTempAlloca to be slightly more permissive. Useful for
AMDGCN OpenMP codegen where allocas are created with a cast to an
address space.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D84260
2020-08-03 05:38:39 +00:00

44 lines
1.4 KiB
C++

//===--- CGOpenMPRuntimeAMDGCN.h - Interface to OpenMP AMDGCN Runtimes ---===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This provides a class for OpenMP runtime code generation specialized to
// AMDGCN targets from generalized CGOpenMPRuntimeGPU class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CLANG_LIB_CODEGEN_CGOPENMPRUNTIMEAMDGCN_H
#define LLVM_CLANG_LIB_CODEGEN_CGOPENMPRUNTIMEAMDGCN_H
#include "CGOpenMPRuntime.h"
#include "CGOpenMPRuntimeGPU.h"
#include "CodeGenFunction.h"
#include "clang/AST/StmtOpenMP.h"
namespace clang {
namespace CodeGen {
class CGOpenMPRuntimeAMDGCN final : public CGOpenMPRuntimeGPU {
public:
explicit CGOpenMPRuntimeAMDGCN(CodeGenModule &CGM);
/// Get the GPU warp size.
llvm::Value *getGPUWarpSize(CodeGenFunction &CGF) override;
/// Get the id of the current thread on the GPU.
llvm::Value *getGPUThreadID(CodeGenFunction &CGF) override;
/// Get the maximum number of threads in a block of the GPU.
llvm::Value *getGPUNumThreads(CodeGenFunction &CGF) override;
};
} // namespace CodeGen
} // namespace clang
#endif // LLVM_CLANG_LIB_CODEGEN_CGOPENMPRUNTIMEAMDGCN_H