104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
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//===----- CGOpenCLRuntime.h - Interface to OpenCL Runtimes -----*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This provides an abstract class for OpenCL code generation. Concrete
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// subclasses of this implement code generation for specific OpenCL
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// runtime libraries.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_CODEGEN_CGOPENCLRUNTIME_H
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#define LLVM_CLANG_LIB_CODEGEN_CGOPENCLRUNTIME_H
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#include "clang/AST/Expr.h"
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#include "clang/AST/Type.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/Value.h"
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namespace clang {
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class BlockExpr;
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class Expr;
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class VarDecl;
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namespace CodeGen {
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class CodeGenFunction;
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class CodeGenModule;
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class CGOpenCLRuntime {
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protected:
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CodeGenModule &CGM;
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llvm::Type *PipeROTy;
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llvm::Type *PipeWOTy;
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llvm::PointerType *SamplerTy;
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/// Structure for enqueued block information.
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struct EnqueuedBlockInfo {
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llvm::Function *InvokeFunc; /// Block invoke function.
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llvm::Function *Kernel; /// Enqueued block kernel.
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llvm::Value *BlockArg; /// The first argument to enqueued block kernel.
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};
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/// Maps block expression to block information.
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llvm::DenseMap<const Expr *, EnqueuedBlockInfo> EnqueuedBlockMap;
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virtual llvm::Type *getPipeType(const PipeType *T, StringRef Name,
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llvm::Type *&PipeTy);
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public:
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CGOpenCLRuntime(CodeGenModule &CGM) : CGM(CGM),
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PipeROTy(nullptr), PipeWOTy(nullptr), SamplerTy(nullptr) {}
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virtual ~CGOpenCLRuntime();
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/// Emit the IR required for a work-group-local variable declaration, and add
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/// an entry to CGF's LocalDeclMap for D. The base class does this using
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/// CodeGenFunction::EmitStaticVarDecl to emit an internal global for D.
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virtual void EmitWorkGroupLocalVarDecl(CodeGenFunction &CGF,
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const VarDecl &D);
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virtual llvm::Type *convertOpenCLSpecificType(const Type *T);
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virtual llvm::Type *getPipeType(const PipeType *T);
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llvm::PointerType *getSamplerType(const Type *T);
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// Returns a value which indicates the size in bytes of the pipe
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// element.
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virtual llvm::Value *getPipeElemSize(const Expr *PipeArg);
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// Returns a value which indicates the alignment in bytes of the pipe
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// element.
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virtual llvm::Value *getPipeElemAlign(const Expr *PipeArg);
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/// \return __generic void* type.
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llvm::PointerType *getGenericVoidPointerType();
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/// \return enqueued block information for enqueued block.
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EnqueuedBlockInfo emitOpenCLEnqueuedBlock(CodeGenFunction &CGF,
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const Expr *E);
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/// Record invoke function and block literal emitted during normal
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/// codegen for a block expression. The information is used by
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/// emitOpenCLEnqueuedBlock to emit wrapper kernel.
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///
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/// \param InvokeF invoke function emitted for the block expression.
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/// \param Block block literal emitted for the block expression.
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void recordBlockInfo(const BlockExpr *E, llvm::Function *InvokeF,
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llvm::Value *Block);
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/// \return LLVM block invoke function emitted for an expression derived from
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/// the block expression.
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llvm::Function *getInvokeFunction(const Expr *E);
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};
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}
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}
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#endif
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