forked from OSchip/llvm-project
[OPENMP] Codegen for untied tasks.
If the untied clause is present on a task construct, any thread in the team can resume the task region after a suspension. Patch adds proper codegen for untied tasks. llvm-svn: 266722
This commit is contained in:
Alexey Bataev
parent
4519ff73df
commit
26b2577f6b
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@ -72,6 +72,8 @@ public:
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/// \return LValue for thread id variable. This LValue always has type int32*.
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virtual LValue getThreadIDVariableLValue(CodeGenFunction &CGF);
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virtual void emitUntiedSwitch(CodeGenFunction & /*CGF*/) {}
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CGOpenMPRegionKind getRegionKind() const { return RegionKind; }
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OpenMPDirectiveKind getDirectiveKind() const { return Kind; }
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@ -82,6 +84,8 @@ public:
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return Info->getKind() == CR_OpenMP;
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}
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~CGOpenMPRegionInfo() override = default;
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protected:
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CGOpenMPRegionKind RegionKind;
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RegionCodeGenTy CodeGen;
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@ -90,7 +94,7 @@ protected:
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};
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/// \brief API for captured statement code generation in OpenMP constructs.
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class CGOpenMPOutlinedRegionInfo : public CGOpenMPRegionInfo {
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class CGOpenMPOutlinedRegionInfo final : public CGOpenMPRegionInfo {
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public:
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CGOpenMPOutlinedRegionInfo(const CapturedStmt &CS, const VarDecl *ThreadIDVar,
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const RegionCodeGenTy &CodeGen,
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@ -121,14 +125,62 @@ private:
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};
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/// \brief API for captured statement code generation in OpenMP constructs.
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class CGOpenMPTaskOutlinedRegionInfo : public CGOpenMPRegionInfo {
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class CGOpenMPTaskOutlinedRegionInfo final : public CGOpenMPRegionInfo {
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public:
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class UntiedTaskActionTy : public PrePostActionTy {
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bool Untied;
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const VarDecl *PartIDVar;
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const RegionCodeGenTy &UntiedCodeGen;
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llvm::SwitchInst *UntiedSwitch = nullptr;
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public:
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UntiedTaskActionTy(bool Tied, const VarDecl *PartIDVar,
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const RegionCodeGenTy &UntiedCodeGen)
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: Untied(!Tied), PartIDVar(PartIDVar), UntiedCodeGen(UntiedCodeGen) {}
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void Enter(CodeGenFunction &CGF) override {
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if (Untied) {
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// Emit task switching point.
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auto PartIdLVal = CGF.EmitLoadOfPointerLValue(
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CGF.GetAddrOfLocalVar(PartIDVar),
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PartIDVar->getType()->castAs<PointerType>());
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auto *Res = CGF.EmitLoadOfScalar(PartIdLVal, SourceLocation());
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auto *DoneBB = CGF.createBasicBlock(".untied.done.");
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UntiedSwitch = CGF.Builder.CreateSwitch(Res, DoneBB);
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CGF.EmitBlock(DoneBB);
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CGF.EmitBranchThroughCleanup(CGF.ReturnBlock);
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CGF.EmitBlock(CGF.createBasicBlock(".untied.jmp."));
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UntiedSwitch->addCase(CGF.Builder.getInt32(0),
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CGF.Builder.GetInsertBlock());
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emitUntiedSwitch(CGF);
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}
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}
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void emitUntiedSwitch(CodeGenFunction &CGF) const {
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if (Untied) {
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auto PartIdLVal = CGF.EmitLoadOfPointerLValue(
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CGF.GetAddrOfLocalVar(PartIDVar),
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PartIDVar->getType()->castAs<PointerType>());
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CGF.EmitStoreOfScalar(CGF.Builder.getInt32(UntiedSwitch->getNumCases()),
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PartIdLVal);
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UntiedCodeGen(CGF);
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CodeGenFunction::JumpDest CurPoint =
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CGF.getJumpDestInCurrentScope(".untied.next.");
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CGF.EmitBranchThroughCleanup(CGF.ReturnBlock);
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CGF.EmitBlock(CGF.createBasicBlock(".untied.jmp."));
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UntiedSwitch->addCase(CGF.Builder.getInt32(UntiedSwitch->getNumCases()),
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CGF.Builder.GetInsertBlock());
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CGF.EmitBranchThroughCleanup(CurPoint);
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CGF.EmitBlock(CurPoint.getBlock());
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}
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}
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unsigned getNumberOfParts() const { return UntiedSwitch->getNumCases(); }
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};
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CGOpenMPTaskOutlinedRegionInfo(const CapturedStmt &CS,
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const VarDecl *ThreadIDVar,
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const RegionCodeGenTy &CodeGen,
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OpenMPDirectiveKind Kind, bool HasCancel)
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OpenMPDirectiveKind Kind, bool HasCancel,
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const UntiedTaskActionTy &Action)
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: CGOpenMPRegionInfo(CS, TaskOutlinedRegion, CodeGen, Kind, HasCancel),
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ThreadIDVar(ThreadIDVar) {
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ThreadIDVar(ThreadIDVar), Action(Action) {
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assert(ThreadIDVar != nullptr && "No ThreadID in OpenMP region.");
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}
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@ -142,6 +194,10 @@ public:
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/// \brief Get the name of the capture helper.
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StringRef getHelperName() const override { return ".omp_outlined."; }
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void emitUntiedSwitch(CodeGenFunction &CGF) override {
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Action.emitUntiedSwitch(CGF);
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}
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static bool classof(const CGCapturedStmtInfo *Info) {
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return CGOpenMPRegionInfo::classof(Info) &&
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cast<CGOpenMPRegionInfo>(Info)->getRegionKind() ==
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@ -152,6 +208,8 @@ private:
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/// \brief A variable or parameter storing global thread id for OpenMP
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/// constructs.
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const VarDecl *ThreadIDVar;
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/// Action for emitting code for untied tasks.
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const UntiedTaskActionTy &Action;
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};
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/// \brief API for inlined captured statement code generation in OpenMP
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@ -210,6 +268,11 @@ public:
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llvm_unreachable("No helper name for inlined OpenMP construct");
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}
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void emitUntiedSwitch(CodeGenFunction &CGF) override {
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if (OuterRegionInfo)
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OuterRegionInfo->emitUntiedSwitch(CGF);
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}
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CodeGenFunction::CGCapturedStmtInfo *getOldCSI() const { return OldCSI; }
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static bool classof(const CGCapturedStmtInfo *Info) {
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@ -217,6 +280,8 @@ public:
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cast<CGOpenMPRegionInfo>(Info)->getRegionKind() == InlinedRegion;
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}
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~CGOpenMPInlinedRegionInfo() override = default;
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private:
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/// \brief CodeGen info about outer OpenMP region.
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CodeGenFunction::CGCapturedStmtInfo *OldCSI;
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@ -228,7 +293,7 @@ private:
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/// captured fields. The name of the target region has to be unique in a given
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/// application so it is provided by the client, because only the client has
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/// the information to generate that.
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class CGOpenMPTargetRegionInfo : public CGOpenMPRegionInfo {
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class CGOpenMPTargetRegionInfo final : public CGOpenMPRegionInfo {
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public:
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CGOpenMPTargetRegionInfo(const CapturedStmt &CS,
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const RegionCodeGenTy &CodeGen, StringRef HelperName)
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@ -257,7 +322,7 @@ static void EmptyCodeGen(CodeGenFunction &, PrePostActionTy &) {
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}
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/// \brief API for generation of expressions captured in a innermost OpenMP
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/// region.
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class CGOpenMPInnerExprInfo : public CGOpenMPInlinedRegionInfo {
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class CGOpenMPInnerExprInfo final : public CGOpenMPInlinedRegionInfo {
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public:
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CGOpenMPInnerExprInfo(CodeGenFunction &CGF, const CapturedStmt &CS)
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: CGOpenMPInlinedRegionInfo(CGF.CapturedStmtInfo, EmptyCodeGen,
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@ -757,16 +822,35 @@ llvm::Value *CGOpenMPRuntime::emitParallelOrTeamsOutlinedFunction(
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llvm::Value *CGOpenMPRuntime::emitTaskOutlinedFunction(
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const OMPExecutableDirective &D, const VarDecl *ThreadIDVar,
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OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen) {
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const VarDecl *PartIDVar, const VarDecl *TaskTVar,
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OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen,
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bool Tied, unsigned &NumberOfParts) {
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auto &&UntiedCodeGen = [this, &D, TaskTVar](CodeGenFunction &CGF,
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PrePostActionTy &) {
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auto *ThreadID = getThreadID(CGF, D.getLocStart());
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auto *UpLoc = emitUpdateLocation(CGF, D.getLocStart());
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llvm::Value *TaskArgs[] = {
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UpLoc, ThreadID,
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CGF.EmitLoadOfPointerLValue(CGF.GetAddrOfLocalVar(TaskTVar),
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TaskTVar->getType()->castAs<PointerType>())
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.getPointer()};
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CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_task), TaskArgs);
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};
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CGOpenMPTaskOutlinedRegionInfo::UntiedTaskActionTy Action(Tied, PartIDVar,
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UntiedCodeGen);
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CodeGen.setAction(Action);
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assert(!ThreadIDVar->getType()->isPointerType() &&
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"thread id variable must be of type kmp_int32 for tasks");
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auto *CS = cast<CapturedStmt>(D.getAssociatedStmt());
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CodeGenFunction CGF(CGM, true);
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CGOpenMPTaskOutlinedRegionInfo CGInfo(*CS, ThreadIDVar, CodeGen,
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InnermostKind,
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cast<OMPTaskDirective>(D).hasCancel());
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CGOpenMPTaskOutlinedRegionInfo CGInfo(
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*CS, ThreadIDVar, CodeGen, InnermostKind,
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cast<OMPTaskDirective>(D).hasCancel(), Action);
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CodeGenFunction::CGCapturedStmtRAII CapInfoRAII(CGF, &CGInfo);
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return CGF.GenerateCapturedStmtFunction(*CS);
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auto *Res = CGF.GenerateCapturedStmtFunction(*CS);
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if (!Tied)
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NumberOfParts = Action.getNumberOfParts();
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return Res;
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}
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Address CGOpenMPRuntime::getOrCreateDefaultLocation(unsigned Flags) {
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@ -1898,6 +1982,8 @@ void CGOpenMPRuntime::emitTaskyieldCall(CodeGenFunction &CGF,
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emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc),
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llvm::ConstantInt::get(CGM.IntTy, /*V=*/0, /*isSigned=*/true)};
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CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_taskyield), Args);
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if (auto *Region = dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo))
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Region->emitUntiedSwitch(CGF);
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}
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void CGOpenMPRuntime::emitTaskgroupRegion(CodeGenFunction &CGF,
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@ -2951,7 +3037,7 @@ createKmpTaskTWithPrivatesRecordDecl(CodeGenModule &CGM, QualType KmpTaskTQTy,
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/// argument.
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/// \code
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/// kmp_int32 .omp_task_entry.(kmp_int32 gtid, kmp_task_t *tt) {
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/// TaskFunction(gtid, tt->part_id, &tt->privates, task_privates_map,
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/// TaskFunction(gtid, tt->part_id, &tt->privates, task_privates_map, tt,
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/// tt->shareds);
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/// return 0;
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/// }
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@ -2982,7 +3068,7 @@ emitProxyTaskFunction(CodeGenModule &CGM, SourceLocation Loc,
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CGF.StartFunction(GlobalDecl(), KmpInt32Ty, TaskEntry, TaskEntryFnInfo, Args);
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// TaskFunction(gtid, tt->task_data.part_id, &tt->privates, task_privates_map,
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// tt->task_data.shareds);
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// tt, tt->task_data.shareds);
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auto *GtidParam = CGF.EmitLoadOfScalar(
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CGF.GetAddrOfLocalVar(&GtidArg), /*Volatile=*/false, KmpInt32Ty, Loc);
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LValue TDBase = CGF.EmitLoadOfPointerLValue(
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@ -2995,7 +3081,7 @@ emitProxyTaskFunction(CodeGenModule &CGM, SourceLocation Loc,
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auto *KmpTaskTQTyRD = cast<RecordDecl>(KmpTaskTQTy->getAsTagDecl());
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auto PartIdFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTPartId);
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auto PartIdLVal = CGF.EmitLValueForField(Base, *PartIdFI);
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auto *PartidParam = CGF.EmitLoadOfLValue(PartIdLVal, Loc).getScalarVal();
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auto *PartidParam = PartIdLVal.getPointer();
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auto SharedsFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTShareds);
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auto SharedsLVal = CGF.EmitLValueForField(Base, *SharedsFI);
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@ -3014,7 +3100,11 @@ emitProxyTaskFunction(CodeGenModule &CGM, SourceLocation Loc,
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}
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llvm::Value *CallArgs[] = {GtidParam, PartidParam, PrivatesParam,
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TaskPrivatesMap, SharedsParam};
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TaskPrivatesMap,
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CGF.Builder.CreatePointerBitCastOrAddrSpaceCast(
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TDBase.getAddress(), CGF.VoidPtrTy)
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.getPointer(),
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SharedsParam};
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CGF.EmitCallOrInvoke(TaskFunction, CallArgs);
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CGF.EmitStoreThroughLValue(
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RValue::get(CGF.Builder.getInt32(/*C=*/0)),
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@ -3154,8 +3244,8 @@ static int array_pod_sort_comparator(const PrivateDataTy *P1,
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void CGOpenMPRuntime::emitTaskCall(
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CodeGenFunction &CGF, SourceLocation Loc, const OMPExecutableDirective &D,
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bool Tied, llvm::PointerIntPair<llvm::Value *, 1, bool> Final,
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llvm::Value *TaskFunction, QualType SharedsTy, Address Shareds,
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const Expr *IfCond, ArrayRef<const Expr *> PrivateVars,
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unsigned NumberOfParts, llvm::Value *TaskFunction, QualType SharedsTy,
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Address Shareds, const Expr *IfCond, ArrayRef<const Expr *> PrivateVars,
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ArrayRef<const Expr *> PrivateCopies,
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ArrayRef<const Expr *> FirstprivateVars,
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ArrayRef<const Expr *> FirstprivateCopies,
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@ -3390,7 +3480,8 @@ void CGOpenMPRuntime::emitTaskCall(
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KmpDependInfoTy, llvm::APInt(/*numBits=*/64, NumDependencies),
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ArrayType::Normal, /*IndexTypeQuals=*/0);
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// kmp_depend_info[<Dependences.size()>] deps;
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DependenciesArray = CGF.CreateMemTemp(KmpDependInfoArrayTy);
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DependenciesArray =
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CGF.CreateMemTemp(KmpDependInfoArrayTy, ".dep.arr.addr");
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for (unsigned i = 0; i < NumDependencies; ++i) {
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const Expr *E = Dependences[i].second;
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auto Addr = CGF.EmitLValue(E);
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@ -3448,8 +3539,6 @@ void CGOpenMPRuntime::emitTaskCall(
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// NOTE: routine and part_id fields are intialized by __kmpc_omp_task_alloc()
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// libcall.
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// Build kmp_int32 __kmpc_omp_task(ident_t *, kmp_int32 gtid, kmp_task_t
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// *new_task);
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// Build kmp_int32 __kmpc_omp_task_with_deps(ident_t *, kmp_int32 gtid,
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// kmp_task_t *new_task, kmp_int32 ndeps, kmp_depend_info_t *dep_list,
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// kmp_int32 ndeps_noalias, kmp_depend_info_t *noalias_dep_list) if dependence
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@ -3467,18 +3556,25 @@ void CGOpenMPRuntime::emitTaskCall(
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DepTaskArgs[5] = CGF.Builder.getInt32(0);
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DepTaskArgs[6] = llvm::ConstantPointerNull::get(CGF.VoidPtrTy);
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}
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auto &&ThenCodeGen = [NumDependencies, &TaskArgs,
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auto &&ThenCodeGen = [this, Tied, Loc, NumberOfParts, TDBase, KmpTaskTQTyRD,
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NumDependencies, &TaskArgs,
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&DepTaskArgs](CodeGenFunction &CGF, PrePostActionTy &) {
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// TODO: add check for untied tasks.
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auto &RT = CGF.CGM.getOpenMPRuntime();
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if (!Tied) {
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auto PartIdFI = std::next(KmpTaskTQTyRD->field_begin(), KmpTaskTPartId);
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auto PartIdLVal = CGF.EmitLValueForField(TDBase, *PartIdFI);
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CGF.EmitStoreOfScalar(CGF.Builder.getInt32(0), PartIdLVal);
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}
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if (NumDependencies) {
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CGF.EmitRuntimeCall(
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RT.createRuntimeFunction(OMPRTL__kmpc_omp_task_with_deps),
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DepTaskArgs);
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createRuntimeFunction(OMPRTL__kmpc_omp_task_with_deps), DepTaskArgs);
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} else {
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CGF.EmitRuntimeCall(RT.createRuntimeFunction(OMPRTL__kmpc_omp_task),
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CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_task),
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TaskArgs);
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}
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// Check if parent region is untied and build return for untied task;
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if (auto *Region =
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dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo))
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Region->emitUntiedSwitch(CGF);
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};
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llvm::Value *DepWaitTaskArgs[6];
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@ -4039,6 +4135,8 @@ void CGOpenMPRuntime::emitTaskwaitCall(CodeGenFunction &CGF,
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llvm::Value *Args[] = {emitUpdateLocation(CGF, Loc), getThreadID(CGF, Loc)};
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// Ignore return result until untied tasks are supported.
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CGF.EmitRuntimeCall(createRuntimeFunction(OMPRTL__kmpc_omp_taskwait), Args);
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if (auto *Region = dyn_cast_or_null<CGOpenMPRegionInfo>(CGF.CapturedStmtInfo))
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Region->emitUntiedSwitch(CGF);
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}
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void CGOpenMPRuntime::emitInlinedDirective(CodeGenFunction &CGF,
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@ -455,17 +455,25 @@ public:
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OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen);
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/// \brief Emits outlined function for the OpenMP task directive \a D. This
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/// outlined function has type void(*)(kmp_int32 ThreadID, kmp_int32
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/// PartID, struct context_vars*).
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/// outlined function has type void(*)(kmp_int32 ThreadID, struct task_t*
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/// TaskT).
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/// \param D OpenMP directive.
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/// \param ThreadIDVar Variable for thread id in the current OpenMP region.
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/// \param PartIDVar Variable for partition id in the current OpenMP untied
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/// task region.
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/// \param TaskTVar Variable for task_t argument.
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/// \param InnermostKind Kind of innermost directive (for simple directives it
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/// is a directive itself, for combined - its innermost directive).
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/// \param CodeGen Code generation sequence for the \a D directive.
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/// \param Tied true if task is generated for tied task, false otherwise.
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/// \param NumberOfParts Number of parts in untied task. Ignored for tied
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/// tasks.
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///
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virtual llvm::Value *emitTaskOutlinedFunction(
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const OMPExecutableDirective &D, const VarDecl *ThreadIDVar,
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OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen);
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const VarDecl *PartIDVar, const VarDecl *TaskTVar,
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OpenMPDirectiveKind InnermostKind, const RegionCodeGenTy &CodeGen,
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bool Tied, unsigned &NumberOfParts);
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/// \brief Cleans up references to the objects in finished function.
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///
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@ -731,6 +739,7 @@ public:
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/// \param Tied true if the task is tied (the task is tied to the thread that
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/// can suspend its task region), false - untied (the task is not tied to any
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/// thread).
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/// \param NumberOfParts Number of parts for untied task.
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/// \param Final Contains either constant bool value, or llvm::Value * of i1
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/// type for final clause. If the value is true, the task forces all of its
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/// child tasks to become final and included tasks.
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@ -757,8 +766,8 @@ public:
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virtual void emitTaskCall(
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CodeGenFunction &CGF, SourceLocation Loc, const OMPExecutableDirective &D,
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bool Tied, llvm::PointerIntPair<llvm::Value *, 1, bool> Final,
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llvm::Value *TaskFunction, QualType SharedsTy, Address Shareds,
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const Expr *IfCond, ArrayRef<const Expr *> PrivateVars,
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unsigned NumberOfParts, llvm::Value *TaskFunction, QualType SharedsTy,
|
||||
Address Shareds, const Expr *IfCond, ArrayRef<const Expr *> PrivateVars,
|
||||
ArrayRef<const Expr *> PrivateCopies,
|
||||
ArrayRef<const Expr *> FirstprivateVars,
|
||||
ArrayRef<const Expr *> FirstprivateCopies,
|
||||
|
|
|
|||
|
|
@ -2244,6 +2244,7 @@ void CodeGenFunction::EmitOMPTaskDirective(const OMPTaskDirective &S) {
|
|||
auto CapturedStruct = GenerateCapturedStmtArgument(*CS);
|
||||
auto *I = CS->getCapturedDecl()->param_begin();
|
||||
auto *PartId = std::next(I);
|
||||
auto *TaskT = std::next(I, 4);
|
||||
// The first function argument for tasks is a thread id, the second one is a
|
||||
// part id (0 for tied tasks, >=0 for untied task).
|
||||
llvm::DenseSet<const VarDecl *> EmittedAsPrivate;
|
||||
|
|
@ -2288,53 +2289,52 @@ void CodeGenFunction::EmitOMPTaskDirective(const OMPTaskDirective &S) {
|
|||
Dependences.push_back(std::make_pair(C->getDependencyKind(), IRef));
|
||||
}
|
||||
}
|
||||
auto &&CodeGen = [PartId, &S, &PrivateVars, &FirstprivateVars](
|
||||
CodeGenFunction &CGF, PrePostActionTy &) {
|
||||
auto &&CodeGen = [&S, &PrivateVars, &FirstprivateVars](
|
||||
CodeGenFunction &CGF, PrePostActionTy &Action) {
|
||||
OMPPrivateScope Scope(CGF);
|
||||
// Set proper addresses for generated private copies.
|
||||
auto *CS = cast<CapturedStmt>(S.getAssociatedStmt());
|
||||
{
|
||||
OMPPrivateScope Scope(CGF);
|
||||
if (!PrivateVars.empty() || !FirstprivateVars.empty()) {
|
||||
auto *CopyFn = CGF.Builder.CreateLoad(
|
||||
CGF.GetAddrOfLocalVar(CS->getCapturedDecl()->getParam(3)));
|
||||
auto *PrivatesPtr = CGF.Builder.CreateLoad(
|
||||
CGF.GetAddrOfLocalVar(CS->getCapturedDecl()->getParam(2)));
|
||||
// Map privates.
|
||||
llvm::SmallVector<std::pair<const VarDecl *, Address>, 16> PrivatePtrs;
|
||||
llvm::SmallVector<llvm::Value *, 16> CallArgs;
|
||||
CallArgs.push_back(PrivatesPtr);
|
||||
for (auto *E : PrivateVars) {
|
||||
auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
|
||||
Address PrivatePtr =
|
||||
CGF.CreateMemTemp(CGF.getContext().getPointerType(E->getType()));
|
||||
PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
|
||||
CallArgs.push_back(PrivatePtr.getPointer());
|
||||
}
|
||||
for (auto *E : FirstprivateVars) {
|
||||
auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
|
||||
Address PrivatePtr =
|
||||
CGF.CreateMemTemp(CGF.getContext().getPointerType(E->getType()));
|
||||
PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
|
||||
CallArgs.push_back(PrivatePtr.getPointer());
|
||||
}
|
||||
CGF.EmitRuntimeCall(CopyFn, CallArgs);
|
||||
for (auto &&Pair : PrivatePtrs) {
|
||||
Address Replacement(CGF.Builder.CreateLoad(Pair.second),
|
||||
CGF.getContext().getDeclAlign(Pair.first));
|
||||
Scope.addPrivate(Pair.first, [Replacement]() { return Replacement; });
|
||||
}
|
||||
if (!PrivateVars.empty() || !FirstprivateVars.empty()) {
|
||||
auto *CopyFn = CGF.Builder.CreateLoad(
|
||||
CGF.GetAddrOfLocalVar(CS->getCapturedDecl()->getParam(3)));
|
||||
auto *PrivatesPtr = CGF.Builder.CreateLoad(
|
||||
CGF.GetAddrOfLocalVar(CS->getCapturedDecl()->getParam(2)));
|
||||
// Map privates.
|
||||
llvm::SmallVector<std::pair<const VarDecl *, Address>, 16> PrivatePtrs;
|
||||
llvm::SmallVector<llvm::Value *, 16> CallArgs;
|
||||
CallArgs.push_back(PrivatesPtr);
|
||||
for (auto *E : PrivateVars) {
|
||||
auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
|
||||
Address PrivatePtr = CGF.CreateMemTemp(
|
||||
CGF.getContext().getPointerType(E->getType()), ".priv.ptr.addr");
|
||||
PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
|
||||
CallArgs.push_back(PrivatePtr.getPointer());
|
||||
}
|
||||
(void)Scope.Privatize();
|
||||
if (*PartId) {
|
||||
// TODO: emit code for untied tasks.
|
||||
for (auto *E : FirstprivateVars) {
|
||||
auto *VD = cast<VarDecl>(cast<DeclRefExpr>(E)->getDecl());
|
||||
Address PrivatePtr =
|
||||
CGF.CreateMemTemp(CGF.getContext().getPointerType(E->getType()),
|
||||
".firstpriv.ptr.addr");
|
||||
PrivatePtrs.push_back(std::make_pair(VD, PrivatePtr));
|
||||
CallArgs.push_back(PrivatePtr.getPointer());
|
||||
}
|
||||
CGF.EmitRuntimeCall(CopyFn, CallArgs);
|
||||
for (auto &&Pair : PrivatePtrs) {
|
||||
Address Replacement(CGF.Builder.CreateLoad(Pair.second),
|
||||
CGF.getContext().getDeclAlign(Pair.first));
|
||||
Scope.addPrivate(Pair.first, [Replacement]() { return Replacement; });
|
||||
}
|
||||
CGF.EmitStmt(CS->getCapturedStmt());
|
||||
}
|
||||
(void)Scope.Privatize();
|
||||
|
||||
Action.Enter(CGF);
|
||||
CGF.EmitStmt(CS->getCapturedStmt());
|
||||
};
|
||||
auto OutlinedFn = CGM.getOpenMPRuntime().emitTaskOutlinedFunction(
|
||||
S, *I, OMPD_task, CodeGen);
|
||||
// Check if we should emit tied or untied task.
|
||||
bool Tied = !S.getSingleClause<OMPUntiedClause>();
|
||||
unsigned NumberOfParts;
|
||||
auto OutlinedFn = CGM.getOpenMPRuntime().emitTaskOutlinedFunction(
|
||||
S, *I, *PartId, *TaskT, OMPD_task, CodeGen, Tied, NumberOfParts);
|
||||
// Check if the task is final
|
||||
llvm::PointerIntPair<llvm::Value *, 1, bool> Final;
|
||||
if (const auto *Clause = S.getSingleClause<OMPFinalClause>()) {
|
||||
|
|
@ -2361,9 +2361,9 @@ void CodeGenFunction::EmitOMPTaskDirective(const OMPTaskDirective &S) {
|
|||
}
|
||||
OMPLexicalScope Scope(*this, S);
|
||||
CGM.getOpenMPRuntime().emitTaskCall(
|
||||
*this, S.getLocStart(), S, Tied, Final, OutlinedFn, SharedsTy,
|
||||
CapturedStruct, IfCond, PrivateVars, PrivateCopies, FirstprivateVars,
|
||||
FirstprivateCopies, FirstprivateInits, Dependences);
|
||||
*this, S.getLocStart(), S, Tied, Final, NumberOfParts, OutlinedFn,
|
||||
SharedsTy, CapturedStruct, IfCond, PrivateVars, PrivateCopies,
|
||||
FirstprivateVars, FirstprivateCopies, FirstprivateInits, Dependences);
|
||||
}
|
||||
|
||||
void CodeGenFunction::EmitOMPTaskyieldDirective(
|
||||
|
|
|
|||
|
|
@ -1610,12 +1610,11 @@ void Sema::ActOnOpenMPRegionStart(OpenMPDirectiveKind DKind, Scope *CurScope) {
|
|||
QualType CopyFnType = Context.getFunctionType(Context.VoidTy, Args, EPI);
|
||||
Sema::CapturedParamNameType Params[] = {
|
||||
std::make_pair(".global_tid.", KmpInt32Ty),
|
||||
std::make_pair(".part_id.", KmpInt32Ty),
|
||||
std::make_pair(".privates.",
|
||||
Context.VoidPtrTy.withConst().withRestrict()),
|
||||
std::make_pair(
|
||||
".copy_fn.",
|
||||
Context.getPointerType(CopyFnType).withConst().withRestrict()),
|
||||
std::make_pair(".part_id.", Context.getPointerType(KmpInt32Ty)),
|
||||
std::make_pair(".privates.", Context.VoidPtrTy.withConst()),
|
||||
std::make_pair(".copy_fn.",
|
||||
Context.getPointerType(CopyFnType).withConst()),
|
||||
std::make_pair(".task_t.", Context.VoidPtrTy.withConst()),
|
||||
std::make_pair(StringRef(), QualType()) // __context with shared vars
|
||||
};
|
||||
ActOnCapturedRegionStart(DSAStack->getConstructLoc(), CurScope, CR_OpenMP,
|
||||
|
|
|
|||
|
|
@ -230,6 +230,19 @@ int main() {
|
|||
a = 4;
|
||||
c = 5;
|
||||
}
|
||||
// CHECK: [[ORIG_TASK_PTR:%.+]] = call i8* @__kmpc_omp_task_alloc([[IDENT_T]]* @{{.+}}, i32 [[GTID]], i32 0, i64 32, i64 1, i32 (i32, i8*)* bitcast (i32 (i32, [[KMP_TASK_T]]{{.*}}*)* [[TASK_ENTRY6:@.+]] to i32 (i32, i8*)*))
|
||||
// CHECK: [[DESTRUCTORS_REF_PTR:%.+]] = getelementptr inbounds [[KMP_TASK_T]]{{.*}}* {{%.+}}, i32 0, i32 3
|
||||
// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** [[DESTRUCTORS_REF_PTR]]
|
||||
// CHECK: call i32 @__kmpc_omp_task([[IDENT_T]]* @{{.+}}, i32 [[GTID]], i8* [[ORIG_TASK_PTR]])
|
||||
#pragma omp task untied
|
||||
{
|
||||
S s1;
|
||||
#pragma omp task
|
||||
a = 4;
|
||||
#pragma omp taskyield
|
||||
s1 = S();
|
||||
#pragma omp taskwait
|
||||
}
|
||||
return a;
|
||||
}
|
||||
// CHECK: define internal i32 [[TASK_ENTRY1]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
|
|
@ -240,16 +253,42 @@ int main() {
|
|||
// CHECK: store i32 10, i32* %{{.+}}
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY2]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
// CHECK: store i32 1, i32* [[A_PTR:@.+]]
|
||||
// CHECK: store i32 1, i32* [[A_PTR]]
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY3]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
// CHECK: store i32 2, i32* [[A_PTR:@.+]]
|
||||
// CHECK: store i32 2, i32* [[A_PTR]]
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY4]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
// CHECK: store i32 3, i32* [[A_PTR:@.+]]
|
||||
// CHECK: store i32 3, i32* [[A_PTR]]
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY5]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
// CHECK: store i32 4, i32* [[A_PTR:@.+]]
|
||||
// CHECK: store i32 4, i32* [[A_PTR]]
|
||||
// CHECK: store i32 5, i32* [[C_PTR:%.+]], align 128
|
||||
|
||||
// CHECK: define internal i32
|
||||
// CHECK: store i32 4, i32* [[A_PTR]]
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY6]](i32, [[KMP_TASK_T]]{{.*}}* noalias)
|
||||
// CHECK: switch i32 %{{.+}}, label
|
||||
// CHECK: load i32*, i32** %
|
||||
// CHECK: store i32 1, i32* %
|
||||
// CHECK: call i32 @__kmpc_omp_task(%
|
||||
|
||||
// CHECK: call i8* @__kmpc_omp_task_alloc(
|
||||
// CHECK: store i32 (i32, i8*)* null, i32 (i32, i8*)** %
|
||||
// CHECK: call i32 @__kmpc_omp_task(%
|
||||
// CHECK: load i32*, i32** %
|
||||
// CHECK: store i32 2, i32* %
|
||||
// CHECK: call i32 @__kmpc_omp_task(%
|
||||
|
||||
// CHECK: call i32 @__kmpc_omp_taskyield(%
|
||||
// CHECK: load i32*, i32** %
|
||||
// CHECK: store i32 3, i32* %
|
||||
// CHECK: call i32 @__kmpc_omp_task(%
|
||||
|
||||
// CHECK: call i32 @__kmpc_omp_taskwait(%
|
||||
// CHECK: load i32*, i32** %
|
||||
// CHECK: store i32 4, i32* %
|
||||
// CHECK: call i32 @__kmpc_omp_task(%
|
||||
#endif
|
||||
|
||||
|
|
|
|||
|
|
@ -422,11 +422,11 @@ int main() {
|
|||
// CHECK: ret void
|
||||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
|
||||
|
||||
// CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
|
||||
// CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
|
||||
// CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
|
||||
// CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
|
||||
// CHECK: alloca i32*,
|
||||
// CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
|
||||
// CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
|
||||
// CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
|
||||
// CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
|
||||
// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_TMAIN_TY]]*, i32**, [2 x i32]**, [2 x [[S_INT_TY]]]**, [[S_INT_TY]]**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
|
||||
// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
|
||||
// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, i32** [[PRIV_T_VAR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]], [[S_INT_TY]]** [[PRIV_VAR_ADDR]])
|
||||
|
|
|
|||
|
|
@ -331,10 +331,11 @@ int main() {
|
|||
|
||||
// CHECK: define internal i32 [[TASK_ENTRY]](i32, [[KMP_TASK_TMAIN_TY]]* noalias)
|
||||
|
||||
// CHECK: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
|
||||
// CHECK: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
|
||||
// CHECK: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
|
||||
// CHECK: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
|
||||
// CHECK: alloca i32*,
|
||||
// CHECK-DAG: [[PRIV_T_VAR_ADDR:%.+]] = alloca i32*,
|
||||
// CHECK-DAG: [[PRIV_VEC_ADDR:%.+]] = alloca [2 x i32]*,
|
||||
// CHECK-DAG: [[PRIV_S_ARR_ADDR:%.+]] = alloca [2 x [[S_INT_TY]]]*,
|
||||
// CHECK-DAG: [[PRIV_VAR_ADDR:%.+]] = alloca [[S_INT_TY]]*,
|
||||
// CHECK: store void (i8*, ...)* bitcast (void ([[PRIVATES_TMAIN_TY]]*, i32**, [2 x i32]**, [2 x [[S_INT_TY]]]**, [[S_INT_TY]]**)* [[PRIVATES_MAP_FN]] to void (i8*, ...)*), void (i8*, ...)** [[MAP_FN_ADDR:%.+]],
|
||||
// CHECK: [[MAP_FN:%.+]] = load void (i8*, ...)*, void (i8*, ...)** [[MAP_FN_ADDR]],
|
||||
// CHECK: call void (i8*, ...) [[MAP_FN]](i8* %{{.+}}, i32** [[PRIV_T_VAR_ADDR]], [2 x i32]** [[PRIV_VEC_ADDR]], [2 x [[S_INT_TY]]]** [[PRIV_S_ARR_ADDR]], [[S_INT_TY]]** [[PRIV_VAR_ADDR]])
|
||||
|
|
|
|||
Loading…
Reference in New Issue