forked from OSchip/llvm-project
52 lines
2.0 KiB
C++
52 lines
2.0 KiB
C++
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//===--- CGStmtOpenMP.cpp - Emit LLVM Code from Statements ----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This contains code to emit OpenMP nodes as LLVM code.
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//
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//===----------------------------------------------------------------------===//
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#include "CGOpenMPRuntime.h"
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#include "CodeGenFunction.h"
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#include "CodeGenModule.h"
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#include "clang/AST/Stmt.h"
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#include "clang/AST/StmtOpenMP.h"
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using namespace clang;
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using namespace CodeGen;
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//===----------------------------------------------------------------------===//
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// OpenMP Directive Emission
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//===----------------------------------------------------------------------===//
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void CodeGenFunction::EmitOMPParallelDirective(const OMPParallelDirective &S) {
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const CapturedStmt *CS = cast<CapturedStmt>(S.getAssociatedStmt());
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llvm::Value *CapturedStruct = GenerateCapturedStmtArgument(*CS);
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llvm::Value *OutlinedFn;
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{
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CodeGenFunction CGF(CGM, true);
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CGCapturedStmtInfo CGInfo(*CS, CS->getCapturedRegionKind());
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CGF.CapturedStmtInfo = &CGInfo;
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OutlinedFn = CGF.GenerateCapturedStmtFunction(
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CS->getCapturedDecl(), CS->getCapturedRecordDecl(), CS->getLocStart());
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}
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// Build call __kmpc_fork_call(loc, 1, microtask, captured_struct/*context*/)
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llvm::Value *Args[] = {
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CGM.getOpenMPRuntime().EmitOpenMPUpdateLocation(*this, S.getLocStart()),
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Builder.getInt32(1), // Number of arguments after 'microtask' argument
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// (there is only one additional argument - 'context')
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Builder.CreateBitCast(OutlinedFn,
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CGM.getOpenMPRuntime().getKmpc_MicroPointerTy()),
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EmitCastToVoidPtr(CapturedStruct)
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};
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llvm::Constant *RTLFn = CGM.getOpenMPRuntime().CreateRuntimeFunction(
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CGOpenMPRuntime::OMPRTL__kmpc_fork_call);
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EmitRuntimeCall(RTLFn, Args);
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}
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