Index: llvm/trunk/include/llvm/CodeGen/FastISel.h =================================================================== --- llvm/trunk/include/llvm/CodeGen/FastISel.h +++ llvm/trunk/include/llvm/CodeGen/FastISel.h @@ -41,32 +41,8 @@ /// quickly. class FastISel { public: - struct ArgListEntry { - Value *Val = nullptr; - Type *Ty = nullptr; - bool IsSExt : 1; - bool IsZExt : 1; - bool IsInReg : 1; - bool IsSRet : 1; - bool IsNest : 1; - bool IsByVal : 1; - bool IsInAlloca : 1; - bool IsReturned : 1; - bool IsSwiftSelf : 1; - bool IsSwiftError : 1; - uint16_t Alignment = 0; - - ArgListEntry() - : IsSExt(false), IsZExt(false), IsInReg(false), IsSRet(false), - IsNest(false), IsByVal(false), IsInAlloca(false), IsReturned(false), - IsSwiftSelf(false), IsSwiftError(false) {} - - /// \brief Set CallLoweringInfo attribute flags based on a call instruction - /// and called function attributes. - void setAttributes(ImmutableCallSite *CS, unsigned AttrIdx); - }; - typedef std::vector ArgListTy; - + typedef TargetLoweringBase::ArgListEntry ArgListEntry; + typedef TargetLoweringBase::ArgListTy ArgListTy; struct CallLoweringInfo { Type *RetTy = nullptr; bool RetSExt : 1; Index: llvm/trunk/include/llvm/IR/Module.h =================================================================== --- llvm/trunk/include/llvm/IR/Module.h +++ llvm/trunk/include/llvm/IR/Module.h @@ -726,6 +726,10 @@ /// @name Utility functions for querying Debug information. /// @{ + /// \brief Returns the Number of Register ParametersDwarf Version by checking + /// module flags. + unsigned getNumberRegisterParameters() const; + /// \brief Returns the Dwarf Version by checking module flags. unsigned getDwarfVersion() const; Index: llvm/trunk/include/llvm/Target/TargetLowering.h =================================================================== --- llvm/trunk/include/llvm/Target/TargetLowering.h +++ llvm/trunk/include/llvm/Target/TargetLowering.h @@ -25,13 +25,14 @@ #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/ADT/StringRef.h" #include "llvm/CodeGen/DAGCombine.h" #include "llvm/CodeGen/ISDOpcodes.h" #include "llvm/CodeGen/MachineValueType.h" #include "llvm/CodeGen/RuntimeLibcalls.h" +#include "llvm/CodeGen/SelectionDAG.h" #include "llvm/CodeGen/SelectionDAGNodes.h" #include "llvm/CodeGen/ValueTypes.h" #include "llvm/IR/Attributes.h" @@ -2628,6 +2629,20 @@ return *this; } + // setCallee with target/module-specific attributes + CallLoweringInfo &setLibCallee(CallingConv::ID CC, Type *ResultType, + SDValue Target, ArgListTy &&ArgsList) { + RetTy = ResultType; + Callee = Target; + CallConv = CC; + NumFixedArgs = Args.size(); + Args = std::move(ArgsList); + + DAG.getTargetLoweringInfo().markLibCallAttributes( + &(DAG.getMachineFunction()), CC, Args); + return *this; + } + CallLoweringInfo &setCallee(CallingConv::ID CC, Type *ResultType, SDValue Target, ArgListTy &&ArgsList) { RetTy = ResultType; Index: llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -119,21 +119,6 @@ "target-specific selector"); STATISTIC(NumFastIselDead, "Number of dead insts removed on failure"); -void FastISel::ArgListEntry::setAttributes(ImmutableCallSite *CS, - unsigned AttrIdx) { - IsSExt = CS->paramHasAttr(AttrIdx, Attribute::SExt); - IsZExt = CS->paramHasAttr(AttrIdx, Attribute::ZExt); - IsInReg = CS->paramHasAttr(AttrIdx, Attribute::InReg); - IsSRet = CS->paramHasAttr(AttrIdx, Attribute::StructRet); - IsNest = CS->paramHasAttr(AttrIdx, Attribute::Nest); - IsByVal = CS->paramHasAttr(AttrIdx, Attribute::ByVal); - IsInAlloca = CS->paramHasAttr(AttrIdx, Attribute::InAlloca); - IsReturned = CS->paramHasAttr(AttrIdx, Attribute::Returned); - IsSwiftSelf = CS->paramHasAttr(AttrIdx, Attribute::SwiftSelf); - IsSwiftError = CS->paramHasAttr(AttrIdx, Attribute::SwiftError); - Alignment = CS->getParamAlignment(AttrIdx); -} - /// Set the current block to which generated machine instructions will be /// appended, and clear the local CSE map. void FastISel::startNewBlock() { @@ -929,6 +914,7 @@ Entry.setAttributes(&CS, ArgI + 1); Args.push_back(Entry); } + TLI.markLibCallAttributes(MF, CS.getCallingConv(), Args); CallLoweringInfo CLI; CLI.setCallee(RetTy, FTy, Symbol, std::move(Args), CS, NumArgs); Index: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -1935,9 +1935,13 @@ InChain = TCChain; TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(SDLoc(Node)).setChain(InChain) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setTailCall(isTailCall).setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(SDLoc(Node)) + .setChain(InChain) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, + std::move(Args)) + .setTailCall(isTailCall) + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = TLI.LowerCallTo(CLI); @@ -1970,9 +1974,12 @@ Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext()); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(DAG.getEntryNode()) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(dl) + .setChain(DAG.getEntryNode()) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, + std::move(Args)) + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = TLI.LowerCallTo(CLI); @@ -2004,9 +2011,12 @@ Type *RetTy = Node->getValueType(0).getTypeForEVT(*DAG.getContext()); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(SDLoc(Node)).setChain(InChain) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(SDLoc(Node)) + .setChain(InChain) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, + std::move(Args)) + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = TLI.LowerCallTo(CLI); @@ -2099,9 +2109,12 @@ SDLoc dl(Node); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(InChain) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(dl) + .setChain(InChain) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, + std::move(Args)) + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = TLI.LowerCallTo(CLI); @@ -2210,9 +2223,9 @@ SDLoc dl(Node); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(InChain) - .setCallee(TLI.getLibcallCallingConv(LC), - Type::getVoidTy(*DAG.getContext()), Callee, std::move(Args)); + CLI.setDebugLoc(dl).setChain(InChain).setLibCallee( + TLI.getLibcallCallingConv(LC), Type::getVoidTy(*DAG.getContext()), Callee, + std::move(Args)); std::pair CallInfo = TLI.LowerCallTo(CLI); @@ -3830,10 +3843,11 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Node->getOperand(0)) - .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol("__sync_synchronize", - TLI.getPointerTy(DAG.getDataLayout())), - std::move(Args)); + .setLibCallee( + CallingConv::C, Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol("__sync_synchronize", + TLI.getPointerTy(DAG.getDataLayout())), + std::move(Args)); std::pair CallResult = TLI.LowerCallTo(CLI); @@ -3870,10 +3884,10 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Node->getOperand(0)) - .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol("abort", - TLI.getPointerTy(DAG.getDataLayout())), - std::move(Args)); + .setLibCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol( + "abort", TLI.getPointerTy(DAG.getDataLayout())), + std::move(Args)); std::pair CallResult = TLI.LowerCallTo(CLI); Results.push_back(CallResult.second); Index: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp @@ -2607,7 +2607,7 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Func, std::move(Args)) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Func, std::move(Args)) .setSExtResult(); std::pair CallInfo = TLI.LowerCallTo(CLI); Index: llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/LegalizeTypes.cpp @@ -1094,9 +1094,12 @@ Type *RetTy = Node->getValueType(0).getTypeForEVT(*DAG.getContext()); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(SDLoc(Node)).setChain(InChain) - .setCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(SDLoc(Node)) + .setChain(InChain) + .setLibCallee(TLI.getLibcallCallingConv(LC), RetTy, Callee, + std::move(Args)) + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = TLI.LowerCallTo(CLI); Index: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -5175,11 +5175,11 @@ TargetLowering::CallLoweringInfo CLI(*this); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMCPY), - Dst.getValueType().getTypeForEVT(*getContext()), - getExternalSymbol(TLI->getLibcallName(RTLIB::MEMCPY), - TLI->getPointerTy(getDataLayout())), - std::move(Args)) + .setLibCallee(TLI->getLibcallCallingConv(RTLIB::MEMCPY), + Dst.getValueType().getTypeForEVT(*getContext()), + getExternalSymbol(TLI->getLibcallName(RTLIB::MEMCPY), + TLI->getPointerTy(getDataLayout())), + std::move(Args)) .setDiscardResult() .setTailCall(isTailCall); @@ -5236,11 +5236,11 @@ TargetLowering::CallLoweringInfo CLI(*this); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMMOVE), - Dst.getValueType().getTypeForEVT(*getContext()), - getExternalSymbol(TLI->getLibcallName(RTLIB::MEMMOVE), - TLI->getPointerTy(getDataLayout())), - std::move(Args)) + .setLibCallee(TLI->getLibcallCallingConv(RTLIB::MEMMOVE), + Dst.getValueType().getTypeForEVT(*getContext()), + getExternalSymbol(TLI->getLibcallName(RTLIB::MEMMOVE), + TLI->getPointerTy(getDataLayout())), + std::move(Args)) .setDiscardResult() .setTailCall(isTailCall); @@ -5298,11 +5298,11 @@ TargetLowering::CallLoweringInfo CLI(*this); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(TLI->getLibcallCallingConv(RTLIB::MEMSET), - Dst.getValueType().getTypeForEVT(*getContext()), - getExternalSymbol(TLI->getLibcallName(RTLIB::MEMSET), - TLI->getPointerTy(getDataLayout())), - std::move(Args)) + .setLibCallee(TLI->getLibcallCallingConv(RTLIB::MEMSET), + Dst.getValueType().getTypeForEVT(*getContext()), + getExternalSymbol(TLI->getLibcallName(RTLIB::MEMSET), + TLI->getPointerTy(getDataLayout())), + std::move(Args)) .setDiscardResult() .setTailCall(isTailCall); Index: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -4912,7 +4912,7 @@ report_fatal_error("Unsupported element size"); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(sdl).setChain(getRoot()).setCallee( + CLI.setDebugLoc(sdl).setChain(getRoot()).setLibCallee( TLI.getLibcallCallingConv(LibraryCall), Type::getVoidTy(*DAG.getContext()), DAG.getExternalSymbol(TLI.getLibcallName(LibraryCall), @@ -5536,7 +5536,7 @@ TargetLowering::ArgListTy Args; TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(sdl).setChain(getRoot()).setCallee( + CLI.setDebugLoc(sdl).setChain(getRoot()).setLibCallee( CallingConv::C, I.getType(), DAG.getExternalSymbol(TrapFuncName.data(), TLI.getPointerTy(DAG.getDataLayout())), Index: llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp =================================================================== --- llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ llvm/trunk/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -96,8 +96,8 @@ /// \brief Set CallLoweringInfo attribute flags based on a call instruction /// and called function attributes. -void TargetLowering::ArgListEntry::setAttributes(ImmutableCallSite *CS, - unsigned AttrIdx) { +void TargetLoweringBase::ArgListEntry::setAttributes(ImmutableCallSite *CS, + unsigned AttrIdx) { IsSExt = CS->paramHasAttr(AttrIdx, Attribute::SExt); IsZExt = CS->paramHasAttr(AttrIdx, Attribute::ZExt); IsInReg = CS->paramHasAttr(AttrIdx, Attribute::InReg); @@ -138,10 +138,13 @@ Type *RetTy = RetVT.getTypeForEVT(*DAG.getContext()); TargetLowering::CallLoweringInfo CLI(DAG); bool signExtend = shouldSignExtendTypeInLibCall(RetVT, isSigned); - CLI.setDebugLoc(dl).setChain(DAG.getEntryNode()) - .setCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) - .setNoReturn(doesNotReturn).setDiscardResult(!isReturnValueUsed) - .setSExtResult(signExtend).setZExtResult(!signExtend); + CLI.setDebugLoc(dl) + .setChain(DAG.getEntryNode()) + .setLibCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) + .setNoReturn(doesNotReturn) + .setDiscardResult(!isReturnValueUsed) + .setSExtResult(signExtend) + .setZExtResult(!signExtend); return LowerCallTo(CLI); } @@ -3853,7 +3856,7 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl).setChain(DAG.getEntryNode()); - CLI.setCallee(CallingConv::C, VoidPtrType, EmuTlsGetAddr, std::move(Args)); + CLI.setLibCallee(CallingConv::C, VoidPtrType, EmuTlsGetAddr, std::move(Args)); std::pair CallResult = LowerCallTo(CLI); // TLSADDR will be codegen'ed as call. Inform MFI that function has calls. Index: llvm/trunk/lib/IR/Module.cpp =================================================================== --- llvm/trunk/lib/IR/Module.cpp +++ llvm/trunk/lib/IR/Module.cpp @@ -465,6 +465,14 @@ GIF.dropAllReferences(); } +unsigned Module::getNumberRegisterParameters() const { + auto *Val = + cast_or_null(getModuleFlag("NumRegisterParameters")); + if (!Val) + return 0; + return cast(Val->getValue())->getZExtValue(); +} + unsigned Module::getDwarfVersion() const { auto *Val = cast_or_null(getModuleFlag("Dwarf Version")); if (!Val) Index: llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp +++ llvm/trunk/lib/Target/AArch64/AArch64ISelLowering.cpp @@ -2123,8 +2123,9 @@ StructType *RetTy = StructType::get(ArgTy, ArgTy, nullptr); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(DAG.getEntryNode()) - .setCallee(CallingConv::Fast, RetTy, Callee, std::move(Args)); + CLI.setDebugLoc(dl) + .setChain(DAG.getEntryNode()) + .setLibCallee(CallingConv::Fast, RetTy, Callee, std::move(Args)); std::pair CallResult = LowerCallTo(CLI); return CallResult.first; Index: llvm/trunk/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp =================================================================== --- llvm/trunk/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp +++ llvm/trunk/lib/Target/AArch64/AArch64SelectionDAGInfo.cpp @@ -44,8 +44,9 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol(bzeroEntry, IntPtr), std::move(Args)) + .setLibCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol(bzeroEntry, IntPtr), + std::move(Args)) .setDiscardResult(); std::pair CallResult = TLI.LowerCallTo(CLI); return CallResult.second; Index: llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp +++ llvm/trunk/lib/Target/ARM/ARMISelLowering.cpp @@ -2873,7 +2873,7 @@ // FIXME: is there useful debug info available here? TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(Chain).setCallee( + CLI.setDebugLoc(dl).setChain(Chain).setLibCallee( CallingConv::C, Type::getInt32Ty(*DAG.getContext()), DAG.getExternalSymbol("__tls_get_addr", PtrVT), std::move(Args)); Index: llvm/trunk/lib/Target/ARM/ARMSelectionDAGInfo.cpp =================================================================== --- llvm/trunk/lib/Target/ARM/ARMSelectionDAGInfo.cpp +++ llvm/trunk/lib/Target/ARM/ARMSelectionDAGInfo.cpp @@ -114,7 +114,7 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee( + .setLibCallee( TLI->getLibcallCallingConv(LC), Type::getVoidTy(*DAG.getContext()), DAG.getExternalSymbol(FunctionNames[AEABILibcall][AlignVariant], TLI->getPointerTy(DAG.getDataLayout())), Index: llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp +++ llvm/trunk/lib/Target/AVR/AVRISelLowering.cpp @@ -356,7 +356,7 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(InChain) - .setCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) + .setLibCallee(getLibcallCallingConv(LC), RetTy, Callee, std::move(Args)) .setInRegister() .setSExtResult(isSigned) .setZExtResult(!isSigned); @@ -1983,4 +1983,3 @@ } } // end of namespace llvm - Index: llvm/trunk/lib/Target/Hexagon/HexagonSelectionDAGInfo.cpp =================================================================== --- llvm/trunk/lib/Target/Hexagon/HexagonSelectionDAGInfo.cpp +++ llvm/trunk/lib/Target/Hexagon/HexagonSelectionDAGInfo.cpp @@ -51,7 +51,7 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee( + .setLibCallee( TLI.getLibcallCallingConv(RTLIB::MEMCPY), Type::getVoidTy(*DAG.getContext()), DAG.getTargetExternalSymbol( Index: llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp +++ llvm/trunk/lib/Target/Mips/MipsISelLowering.cpp @@ -1922,8 +1922,9 @@ Args.push_back(Entry); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(DL).setChain(DAG.getEntryNode()) - .setCallee(CallingConv::C, PtrTy, TlsGetAddr, std::move(Args)); + CLI.setDebugLoc(DL) + .setChain(DAG.getEntryNode()) + .setLibCallee(CallingConv::C, PtrTy, TlsGetAddr, std::move(Args)); std::pair CallResult = LowerCallTo(CLI); SDValue Ret = CallResult.first; Index: llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp +++ llvm/trunk/lib/Target/PowerPC/PPCISelLowering.cpp @@ -2647,10 +2647,9 @@ // Lower to a call to __trampoline_setup(Trmp, TrampSize, FPtr, ctx_reg) TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(Chain) - .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol("__trampoline_setup", PtrVT), - std::move(Args)); + CLI.setDebugLoc(dl).setChain(Chain).setLibCallee( + CallingConv::C, Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol("__trampoline_setup", PtrVT), std::move(Args)); std::pair CallResult = LowerCallTo(CLI); return CallResult.second; Index: llvm/trunk/lib/Target/X86/X86ISelLowering.h =================================================================== --- llvm/trunk/lib/Target/X86/X86ISelLowering.h +++ llvm/trunk/lib/Target/X86/X86ISelLowering.h @@ -688,6 +688,9 @@ unsigned getJumpTableEncoding() const override; bool useSoftFloat() const override; + void markLibCallAttributes(MachineFunction *MF, unsigned CC, + ArgListTy &Args) const override; + MVT getScalarShiftAmountTy(const DataLayout &, EVT) const override { return MVT::i8; } Index: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp +++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp @@ -53,6 +53,7 @@ #include "llvm/Support/Debug.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/MathExtras.h" +#include "llvm/Target/TargetLowering.h" #include "llvm/Target/TargetOptions.h" #include #include @@ -1961,6 +1962,34 @@ return Subtarget.useSoftFloat(); } +void X86TargetLowering::markLibCallAttributes(MachineFunction *MF, unsigned CC, + ArgListTy &Args) const { + + // Only relabel X86-32 for C / Stdcall CCs. + if (static_cast(MF->getSubtarget()).is64Bit()) + return; + if (CC != CallingConv::C && CC != CallingConv::X86_StdCall) + return; + unsigned ParamRegs = 0; + if (auto *M = MF->getFunction()->getParent()) + ParamRegs = M->getNumberRegisterParameters(); + + // Mark the first N int arguments as having reg + for (unsigned Idx = 0; Idx < Args.size(); Idx++) { + Type *T = Args[Idx].Ty; + if (T->isPointerTy() || T->isIntegerTy()) + if (MF->getDataLayout().getTypeAllocSize(T) <= 8) { + unsigned numRegs = 1; + if (MF->getDataLayout().getTypeAllocSize(T) > 4) + numRegs = 2; + if (ParamRegs < numRegs) + return; + ParamRegs -= numRegs; + Args[Idx].IsInReg = true; + } + } +} + const MCExpr * X86TargetLowering::LowerCustomJumpTableEntry(const MachineJumpTableInfo *MJTI, const MachineBasicBlock *MBB, @@ -21517,11 +21546,15 @@ getPointerTy(DAG.getDataLayout())); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(InChain) - .setCallee(getLibcallCallingConv(LC), - static_cast(MVT::v2i64).getTypeForEVT(*DAG.getContext()), - Callee, std::move(Args)) - .setInRegister().setSExtResult(isSigned).setZExtResult(!isSigned); + CLI.setDebugLoc(dl) + .setChain(InChain) + .setLibCallee( + getLibcallCallingConv(LC), + static_cast(MVT::v2i64).getTypeForEVT(*DAG.getContext()), Callee, + std::move(Args)) + .setInRegister() + .setSExtResult(isSigned) + .setZExtResult(!isSigned); std::pair CallInfo = LowerCallTo(CLI); return DAG.getBitcast(VT, CallInfo.first); @@ -23245,8 +23278,9 @@ : (Type*)VectorType::get(ArgTy, 4); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(dl).setChain(DAG.getEntryNode()) - .setCallee(CallingConv::C, RetTy, Callee, std::move(Args)); + CLI.setDebugLoc(dl) + .setChain(DAG.getEntryNode()) + .setLibCallee(CallingConv::C, RetTy, Callee, std::move(Args)); std::pair CallResult = TLI.LowerCallTo(CLI); Index: llvm/trunk/lib/Target/X86/X86SelectionDAGInfo.cpp =================================================================== --- llvm/trunk/lib/Target/X86/X86SelectionDAGInfo.cpp +++ llvm/trunk/lib/Target/X86/X86SelectionDAGInfo.cpp @@ -87,8 +87,9 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol(bzeroEntry, IntPtr), std::move(Args)) + .setLibCallee(CallingConv::C, Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol(bzeroEntry, IntPtr), + std::move(Args)) .setDiscardResult(); std::pair CallResult = TLI.LowerCallTo(CLI); Index: llvm/trunk/lib/Target/XCore/XCoreISelLowering.cpp =================================================================== --- llvm/trunk/lib/Target/XCore/XCoreISelLowering.cpp +++ llvm/trunk/lib/Target/XCore/XCoreISelLowering.cpp @@ -483,7 +483,7 @@ Args.push_back(Entry); TargetLowering::CallLoweringInfo CLI(DAG); - CLI.setDebugLoc(DL).setChain(Chain).setCallee( + CLI.setDebugLoc(DL).setChain(Chain).setLibCallee( CallingConv::C, IntPtrTy, DAG.getExternalSymbol("__misaligned_load", getPointerTy(DAG.getDataLayout())), Index: llvm/trunk/lib/Target/XCore/XCoreSelectionDAGInfo.cpp =================================================================== --- llvm/trunk/lib/Target/XCore/XCoreSelectionDAGInfo.cpp +++ llvm/trunk/lib/Target/XCore/XCoreSelectionDAGInfo.cpp @@ -35,11 +35,11 @@ TargetLowering::CallLoweringInfo CLI(DAG); CLI.setDebugLoc(dl) .setChain(Chain) - .setCallee(TLI.getLibcallCallingConv(RTLIB::MEMCPY), - Type::getVoidTy(*DAG.getContext()), - DAG.getExternalSymbol("__memcpy_4", - TLI.getPointerTy(DAG.getDataLayout())), - std::move(Args)) + .setLibCallee(TLI.getLibcallCallingConv(RTLIB::MEMCPY), + Type::getVoidTy(*DAG.getContext()), + DAG.getExternalSymbol( + "__memcpy_4", TLI.getPointerTy(DAG.getDataLayout())), + std::move(Args)) .setDiscardResult(); std::pair CallResult = TLI.LowerCallTo(CLI); Index: llvm/trunk/test/CodeGen/X86/regparm.ll =================================================================== --- llvm/trunk/test/CodeGen/X86/regparm.ll +++ llvm/trunk/test/CodeGen/X86/regparm.ll @@ -0,0 +1,48 @@ +; RUN: llc %s -mtriple=i386-pc-linux -o - | FileCheck -check-prefix=CHECK %s +; RUN: llc %s -mtriple=i386-pc-win32 -o - | FileCheck -check-prefix=WIN %s +; RUN: llc %s -mtriple=i386-pc-linux -fast-isel -o - | FileCheck -check-prefix=FAST %s +; RUN: llc %s -mtriple=i386-pc-win32 -fast-isel -o - | FileCheck -check-prefix=FASTWIN %s + + + +target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128" +target triple = "i386-unknown-linux-gnu" + +; Function Attrs: argmemonly nounwind +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture writeonly, i8* nocapture readonly, i32, i32, i1) #1 + +define void @use_memset(i8* inreg nocapture %dest, i8 inreg %c, i32 inreg %n) local_unnamed_addr #0 { +entry: +;CHECK-LABEL: @use_memset +;CHECK-NOT: push +;CHECK: jmp memset +;CHECK-NOT: retl +;WIN-LABEL: @use_memset +;WIN-NOT: push +;WIN: jmp _memset +;WIN-NOT: retl +;FAST-LABEL: @use_memset +;FAST: subl $12, %esp +;FAST-NEXT: movzbl %dl, %edx +;FAST-NEXT: calll memset +;FAST-NEXT: addl $12, %esp +;FASTWIN-LABEL: @use_memset +;FASTWIN: movzbl %dl, %edx +;FASTWIN-NEXT: calll _memset +;FASTWIN-NEXT: retl + tail call void @llvm.memset.p0i8.i32(i8* %dest, i8 %c, i32 %n, i32 1, i1 false) + ret void +} + +; Function Attrs: argmemonly nounwind +declare void @llvm.memset.p0i8.i32(i8* nocapture writeonly, i8, i32, i32, i1) #1 + + +attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { argmemonly nounwind } + +!llvm.module.flags = !{!0} +!llvm.ident = !{!1} + +!0 = !{i32 1, !"NumRegisterParameters", i32 3} +!1 = !{!"clang version 4.0.0 (trunk 288025) (llvm/trunk 288033)"}