From dd58ef019b700900793a1eb48b52123db01b654e Mon Sep 17 00:00:00 2001 From: Dimitry Andric Date: Wed, 30 Dec 2015 11:46:15 +0000 Subject: Vendor import of llvm trunk r256633: https://llvm.org/svn/llvm-project/llvm/trunk@256633 --- lib/CodeGen/SelectionDAG/LegalizeTypes.h | 110 +++++++++++++++++++++---------- 1 file changed, 76 insertions(+), 34 deletions(-) (limited to 'lib/CodeGen/SelectionDAG/LegalizeTypes.h') diff --git a/lib/CodeGen/SelectionDAG/LegalizeTypes.h b/lib/CodeGen/SelectionDAG/LegalizeTypes.h index d1131a74cf17..8ba19f76797f 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeTypes.h +++ b/lib/CodeGen/SelectionDAG/LegalizeTypes.h @@ -72,6 +72,20 @@ private: return TLI.getTypeAction(*DAG.getContext(), VT) == TargetLowering::TypeLegal; } + /// isSimpleLegalType - Return true if this is a simple legal type. + bool isSimpleLegalType(EVT VT) const { + return VT.isSimple() && TLI.isTypeLegal(VT); + } + + /// isLegalInHWReg - Return true if this type can be passed in registers. + /// For example, x86_64's f128, should to be legally in registers + /// and only some operations converted to library calls or integer + /// bitwise operations. + bool isLegalInHWReg(EVT VT) const { + EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); + return VT == NVT && isSimpleLegalType(VT); + } + EVT getSetCCResultType(EVT VT) const { return TLI.getSetCCResultType(DAG.getDataLayout(), *DAG.getContext(), VT); } @@ -173,6 +187,11 @@ private: std::pair ExpandAtomic(SDNode *Node); SDValue PromoteTargetBoolean(SDValue Bool, EVT ValVT); + + /// Modify Bit Vector to match SetCC result type of ValVT. + /// The bit vector is widened with zeroes when WithZeroes is true. + SDValue WidenTargetBoolean(SDValue Bool, EVT ValVT, bool WithZeroes = false); + void ReplaceValueWith(SDValue From, SDValue To); void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi); void SplitInteger(SDValue Op, EVT LoVT, EVT HiVT, @@ -234,6 +253,7 @@ private: SDValue PromoteIntRes_CONCAT_VECTORS(SDNode *N); SDValue PromoteIntRes_BITCAST(SDNode *N); SDValue PromoteIntRes_BSWAP(SDNode *N); + SDValue PromoteIntRes_BITREVERSE(SDNode *N); SDValue PromoteIntRes_BUILD_PAIR(SDNode *N); SDValue PromoteIntRes_Constant(SDNode *N); SDValue PromoteIntRes_CONVERT_RNDSAT(SDNode *N); @@ -246,21 +266,22 @@ private: SDValue PromoteIntRes_INT_EXTEND(SDNode *N); SDValue PromoteIntRes_LOAD(LoadSDNode *N); SDValue PromoteIntRes_MLOAD(MaskedLoadSDNode *N); + SDValue PromoteIntRes_MGATHER(MaskedGatherSDNode *N); SDValue PromoteIntRes_Overflow(SDNode *N); SDValue PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo); - SDValue PromoteIntRes_SDIV(SDNode *N); SDValue PromoteIntRes_SELECT(SDNode *N); SDValue PromoteIntRes_VSELECT(SDNode *N); SDValue PromoteIntRes_SELECT_CC(SDNode *N); SDValue PromoteIntRes_SETCC(SDNode *N); SDValue PromoteIntRes_SHL(SDNode *N); SDValue PromoteIntRes_SimpleIntBinOp(SDNode *N); + SDValue PromoteIntRes_ZExtIntBinOp(SDNode *N); + SDValue PromoteIntRes_SExtIntBinOp(SDNode *N); SDValue PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N); SDValue PromoteIntRes_SRA(SDNode *N); SDValue PromoteIntRes_SRL(SDNode *N); SDValue PromoteIntRes_TRUNCATE(SDNode *N); SDValue PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo); - SDValue PromoteIntRes_UDIV(SDNode *N); SDValue PromoteIntRes_UNDEF(SDNode *N); SDValue PromoteIntRes_VAARG(SDNode *N); SDValue PromoteIntRes_XMULO(SDNode *N, unsigned ResNo); @@ -276,7 +297,6 @@ private: SDValue PromoteIntOp_BUILD_VECTOR(SDNode *N); SDValue PromoteIntOp_CONVERT_RNDSAT(SDNode *N); SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo); - SDValue PromoteIntOp_EXTRACT_ELEMENT(SDNode *N); SDValue PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N); SDValue PromoteIntOp_EXTRACT_SUBVECTOR(SDNode *N); SDValue PromoteIntOp_CONCAT_VECTORS(SDNode *N); @@ -284,7 +304,6 @@ private: SDValue PromoteIntOp_SELECT(SDNode *N, unsigned OpNo); SDValue PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo); SDValue PromoteIntOp_SETCC(SDNode *N, unsigned OpNo); - SDValue PromoteIntOp_VSETCC(SDNode *N, unsigned OpNo); SDValue PromoteIntOp_Shift(SDNode *N); SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N); SDValue PromoteIntOp_SINT_TO_FP(SDNode *N); @@ -294,6 +313,8 @@ private: SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N); SDValue PromoteIntOp_MSTORE(MaskedStoreSDNode *N, unsigned OpNo); SDValue PromoteIntOp_MLOAD(MaskedLoadSDNode *N, unsigned OpNo); + SDValue PromoteIntOp_MSCATTER(MaskedScatterSDNode *N, unsigned OpNo); + SDValue PromoteIntOp_MGATHER(MaskedGatherSDNode *N, unsigned OpNo); void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code); @@ -312,8 +333,6 @@ private: // Integer Result Expansion. void ExpandIntegerResult(SDNode *N, unsigned ResNo); - void ExpandIntRes_MERGE_VALUES (SDNode *N, unsigned ResNo, - SDValue &Lo, SDValue &Hi); void ExpandIntRes_ANY_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_AssertSext (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi); @@ -322,6 +341,7 @@ private: void ExpandIntRes_CTPOP (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_CTTZ (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_LOAD (LoadSDNode *N, SDValue &Lo, SDValue &Hi); + void ExpandIntRes_READCYCLECOUNTER (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_TRUNCATE (SDNode *N, SDValue &Lo, SDValue &Hi); @@ -333,6 +353,7 @@ private: void ExpandIntRes_ADDSUB (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_ADDSUBC (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_ADDSUBE (SDNode *N, SDValue &Lo, SDValue &Hi); + void ExpandIntRes_BITREVERSE (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_BSWAP (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_MUL (SDNode *N, SDValue &Lo, SDValue &Hi); void ExpandIntRes_SDIV (SDNode *N, SDValue &Lo, SDValue &Hi); @@ -354,12 +375,10 @@ private: // Integer Operand Expansion. bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo); - SDValue ExpandIntOp_BITCAST(SDNode *N); SDValue ExpandIntOp_BR_CC(SDNode *N); - SDValue ExpandIntOp_BUILD_VECTOR(SDNode *N); - SDValue ExpandIntOp_EXTRACT_ELEMENT(SDNode *N); SDValue ExpandIntOp_SELECT_CC(SDNode *N); SDValue ExpandIntOp_SETCC(SDNode *N); + SDValue ExpandIntOp_SETCCE(SDNode *N); SDValue ExpandIntOp_Shift(SDNode *N); SDValue ExpandIntOp_SINT_TO_FP(SDNode *N); SDValue ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo); @@ -375,32 +394,48 @@ private: // Float to Integer Conversion Support: LegalizeFloatTypes.cpp //===--------------------------------------------------------------------===// - /// GetSoftenedFloat - Given a processed operand Op which was converted to an - /// integer of the same size, this returns the integer. The integer contains - /// exactly the same bits as Op - only the type changed. For example, if Op - /// is an f32 which was softened to an i32, then this method returns an i32, - /// the bits of which coincide with those of Op. + /// GetSoftenedFloat - Given an operand Op of Float type, returns the integer + /// if the Op is not supported in target HW and converted to the integer. + /// The integer contains exactly the same bits as Op - only the type changed. + /// For example, if Op is an f32 which was softened to an i32, then this method + /// returns an i32, the bits of which coincide with those of Op. + /// If the Op can be efficiently supported in target HW or the operand must + /// stay in a register, the Op is not converted to an integer. + /// In that case, the given op is returned. SDValue GetSoftenedFloat(SDValue Op) { SDValue &SoftenedOp = SoftenedFloats[Op]; + if (!SoftenedOp.getNode() && + isSimpleLegalType(Op.getValueType())) + return Op; RemapValue(SoftenedOp); assert(SoftenedOp.getNode() && "Operand wasn't converted to integer?"); return SoftenedOp; } void SetSoftenedFloat(SDValue Op, SDValue Result); - // Result Float to Integer Conversion. - void SoftenFloatResult(SDNode *N, unsigned OpNo); + // Call ReplaceValueWith(SDValue(N, ResNo), Res) if necessary. + void ReplaceSoftenFloatResult(SDNode *N, unsigned ResNo, SDValue &NewRes) { + // When the result type can be kept in HW registers, the converted + // NewRes node could have the same type. We can save the effort in + // cloning every user of N in SoftenFloatOperand or other legalization functions, + // by calling ReplaceValueWith here to update all users. + if (NewRes.getNode() != N && isLegalInHWReg(N->getValueType(ResNo))) + ReplaceValueWith(SDValue(N, ResNo), NewRes); + } + + // Convert Float Results to Integer for Non-HW-supported Operations. + bool SoftenFloatResult(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_MERGE_VALUES(SDNode *N, unsigned ResNo); - SDValue SoftenFloatRes_BITCAST(SDNode *N); + SDValue SoftenFloatRes_BITCAST(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N); - SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N); + SDValue SoftenFloatRes_ConstantFP(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N); - SDValue SoftenFloatRes_FABS(SDNode *N); + SDValue SoftenFloatRes_FABS(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_FMINNUM(SDNode *N); SDValue SoftenFloatRes_FMAXNUM(SDNode *N); SDValue SoftenFloatRes_FADD(SDNode *N); SDValue SoftenFloatRes_FCEIL(SDNode *N); - SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N); + SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_FCOS(SDNode *N); SDValue SoftenFloatRes_FDIV(SDNode *N); SDValue SoftenFloatRes_FEXP(SDNode *N); @@ -412,7 +447,7 @@ private: SDValue SoftenFloatRes_FMA(SDNode *N); SDValue SoftenFloatRes_FMUL(SDNode *N); SDValue SoftenFloatRes_FNEARBYINT(SDNode *N); - SDValue SoftenFloatRes_FNEG(SDNode *N); + SDValue SoftenFloatRes_FNEG(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_FP_EXTEND(SDNode *N); SDValue SoftenFloatRes_FP16_TO_FP(SDNode *N); SDValue SoftenFloatRes_FP_ROUND(SDNode *N); @@ -425,21 +460,25 @@ private: SDValue SoftenFloatRes_FSQRT(SDNode *N); SDValue SoftenFloatRes_FSUB(SDNode *N); SDValue SoftenFloatRes_FTRUNC(SDNode *N); - SDValue SoftenFloatRes_LOAD(SDNode *N); - SDValue SoftenFloatRes_SELECT(SDNode *N); - SDValue SoftenFloatRes_SELECT_CC(SDNode *N); + SDValue SoftenFloatRes_LOAD(SDNode *N, unsigned ResNo); + SDValue SoftenFloatRes_SELECT(SDNode *N, unsigned ResNo); + SDValue SoftenFloatRes_SELECT_CC(SDNode *N, unsigned ResNo); SDValue SoftenFloatRes_UNDEF(SDNode *N); SDValue SoftenFloatRes_VAARG(SDNode *N); SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N); - // Operand Float to Integer Conversion. + // Return true if we can skip softening the given operand or SDNode because + // it was soften before by SoftenFloatResult and references to the operand + // were replaced by ReplaceValueWith. + bool CanSkipSoftenFloatOperand(SDNode *N, unsigned OpNo); + + // Convert Float Operand to Integer for Non-HW-supported Operations. bool SoftenFloatOperand(SDNode *N, unsigned OpNo); SDValue SoftenFloatOp_BITCAST(SDNode *N); SDValue SoftenFloatOp_BR_CC(SDNode *N); SDValue SoftenFloatOp_FP_EXTEND(SDNode *N); SDValue SoftenFloatOp_FP_ROUND(SDNode *N); - SDValue SoftenFloatOp_FP_TO_SINT(SDNode *N); - SDValue SoftenFloatOp_FP_TO_UINT(SDNode *N); + SDValue SoftenFloatOp_FP_TO_XINT(SDNode *N); SDValue SoftenFloatOp_SELECT_CC(SDNode *N); SDValue SoftenFloatOp_SETCC(SDNode *N); SDValue SoftenFloatOp_STORE(SDNode *N, unsigned OpNo); @@ -575,7 +614,6 @@ private: SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N); SDValue ScalarizeVecRes_LOAD(LoadSDNode *N); SDValue ScalarizeVecRes_SCALAR_TO_VECTOR(SDNode *N); - SDValue ScalarizeVecRes_SIGN_EXTEND_INREG(SDNode *N); SDValue ScalarizeVecRes_VSELECT(SDNode *N); SDValue ScalarizeVecRes_SELECT(SDNode *N); SDValue ScalarizeVecRes_SELECT_CC(SDNode *N); @@ -617,20 +655,18 @@ private: void SplitVecRes_InregOp(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_BITCAST(SDNode *N, SDValue &Lo, SDValue &Hi); - void SplitVecRes_BUILD_PAIR(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_BUILD_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_EXTRACT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_INSERT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_FPOWI(SDNode *N, SDValue &Lo, SDValue &Hi); + void SplitVecRes_FCOPYSIGN(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_LOAD(LoadSDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_MLOAD(MaskedLoadSDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_MGATHER(MaskedGatherSDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_SCALAR_TO_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi); - void SplitVecRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_SETCC(SDNode *N, SDValue &Lo, SDValue &Hi); - void SplitVecRes_UNDEF(SDNode *N, SDValue &Lo, SDValue &Hi); void SplitVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N, SDValue &Lo, SDValue &Hi); @@ -650,6 +686,7 @@ private: SDValue SplitVecOp_CONCAT_VECTORS(SDNode *N); SDValue SplitVecOp_VSETCC(SDNode *N); SDValue SplitVecOp_FP_ROUND(SDNode *N); + SDValue SplitVecOp_FCOPYSIGN(SDNode *N); //===--------------------------------------------------------------------===// // Vector Widening Support: LegalizeVectorTypes.cpp @@ -680,8 +717,8 @@ private: SDValue WidenVecRes_INSERT_VECTOR_ELT(SDNode* N); SDValue WidenVecRes_LOAD(SDNode* N); SDValue WidenVecRes_MLOAD(MaskedLoadSDNode* N); + SDValue WidenVecRes_MGATHER(MaskedGatherSDNode* N); SDValue WidenVecRes_SCALAR_TO_VECTOR(SDNode* N); - SDValue WidenVecRes_SIGN_EXTEND_INREG(SDNode* N); SDValue WidenVecRes_SELECT(SDNode* N); SDValue WidenVecRes_SELECT_CC(SDNode* N); SDValue WidenVecRes_SETCC(SDNode* N); @@ -693,6 +730,7 @@ private: SDValue WidenVecRes_Binary(SDNode *N); SDValue WidenVecRes_BinaryCanTrap(SDNode *N); SDValue WidenVecRes_Convert(SDNode *N); + SDValue WidenVecRes_FCOPYSIGN(SDNode *N); SDValue WidenVecRes_POWI(SDNode *N); SDValue WidenVecRes_Shift(SDNode *N); SDValue WidenVecRes_Unary(SDNode *N); @@ -707,9 +745,11 @@ private: SDValue WidenVecOp_EXTRACT_SUBVECTOR(SDNode *N); SDValue WidenVecOp_STORE(SDNode* N); SDValue WidenVecOp_MSTORE(SDNode* N, unsigned OpNo); + SDValue WidenVecOp_MSCATTER(SDNode* N, unsigned OpNo); SDValue WidenVecOp_SETCC(SDNode* N); SDValue WidenVecOp_Convert(SDNode *N); + SDValue WidenVecOp_FCOPYSIGN(SDNode *N); //===--------------------------------------------------------------------===// // Vector Widening Utilities Support: LegalizeVectorTypes.cpp @@ -745,8 +785,10 @@ private: /// Modifies a vector input (widen or narrows) to a vector of NVT. The /// input vector must have the same element type as NVT. - SDValue ModifyToType(SDValue InOp, EVT WidenVT); - + /// When FillWithZeroes is "on" the vector will be widened with + /// zeroes. + /// By default, the vector will be widened with undefined values. + SDValue ModifyToType(SDValue InOp, EVT NVT, bool FillWithZeroes = false); //===--------------------------------------------------------------------===// // Generic Splitting: LegalizeTypesGeneric.cpp -- cgit v1.2.3