diff options
Diffstat (limited to 'llvm/lib/Target/AArch64')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp | 38 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp | 32 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ISelLowering.cpp | 139 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ISelLowering.h | 9 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.cpp | 274 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.h | 4 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64InstrInfo.td | 22 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp | 57 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp | 2 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp | 10 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp | 3 | ||||
| -rw-r--r-- | llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp | 3 |
12 files changed, 251 insertions, 342 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp b/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp index c4b43e1..c52487a 100644 --- a/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp +++ b/llvm/lib/Target/AArch64/AArch64AsmPrinter.cpp @@ -176,6 +176,9 @@ public: std::optional<AArch64PACKey::ID> PACKey, uint64_t PACDisc, Register PACAddrDisc); + // Emit the sequence for PAC. + void emitPtrauthSign(const MachineInstr *MI); + // Emit the sequence to compute the discriminator. // // The returned register is either unmodified AddrDisc or ScratchReg. @@ -2175,6 +2178,37 @@ void AArch64AsmPrinter::emitPtrauthAuthResign( OutStreamer->emitLabel(EndSym); } +void AArch64AsmPrinter::emitPtrauthSign(const MachineInstr *MI) { + Register Val = MI->getOperand(1).getReg(); + auto Key = (AArch64PACKey::ID)MI->getOperand(2).getImm(); + uint64_t Disc = MI->getOperand(3).getImm(); + Register AddrDisc = MI->getOperand(4).getReg(); + bool AddrDiscKilled = MI->getOperand(4).isKill(); + + // As long as at least one of Val and AddrDisc is in GPR64noip, a scratch + // register is available. + Register ScratchReg = Val == AArch64::X16 ? AArch64::X17 : AArch64::X16; + assert(ScratchReg != AddrDisc && + "Neither X16 nor X17 is available as a scratch register"); + + // Compute pac discriminator + assert(isUInt<16>(Disc)); + Register DiscReg = emitPtrauthDiscriminator( + Disc, AddrDisc, ScratchReg, /*MayUseAddrAsScratch=*/AddrDiscKilled); + bool IsZeroDisc = DiscReg == AArch64::XZR; + unsigned Opc = getPACOpcodeForKey(Key, IsZeroDisc); + + // paciza x16 ; if IsZeroDisc + // pacia x16, x17 ; if !IsZeroDisc + MCInst PACInst; + PACInst.setOpcode(Opc); + PACInst.addOperand(MCOperand::createReg(Val)); + PACInst.addOperand(MCOperand::createReg(Val)); + if (!IsZeroDisc) + PACInst.addOperand(MCOperand::createReg(DiscReg)); + EmitToStreamer(*OutStreamer, PACInst); +} + void AArch64AsmPrinter::emitPtrauthBranch(const MachineInstr *MI) { bool IsCall = MI->getOpcode() == AArch64::BLRA; unsigned BrTarget = MI->getOperand(0).getReg(); @@ -2890,6 +2924,10 @@ void AArch64AsmPrinter::emitInstruction(const MachineInstr *MI) { MI->getOperand(4).getImm(), MI->getOperand(5).getReg()); return; + case AArch64::PAC: + emitPtrauthSign(MI); + return; + case AArch64::LOADauthptrstatic: LowerLOADauthptrstatic(*MI); return; diff --git a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp index eca7ca5..ad42f4b 100644 --- a/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp +++ b/llvm/lib/Target/AArch64/AArch64ISelDAGToDAG.cpp @@ -5296,7 +5296,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { } case Intrinsic::aarch64_sve_ld1_pn_x2: { if (VT == MVT::nxv16i8) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 2, 0, AArch64::LD1B_2Z_IMM_PSEUDO, AArch64::LD1B_2Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5307,7 +5307,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { return; } else if (VT == MVT::nxv8i16 || VT == MVT::nxv8f16 || VT == MVT::nxv8bf16) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 2, 1, AArch64::LD1H_2Z_IMM_PSEUDO, AArch64::LD1H_2Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5317,7 +5317,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv4i32 || VT == MVT::nxv4f32) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 2, 2, AArch64::LD1W_2Z_IMM_PSEUDO, AArch64::LD1W_2Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5327,7 +5327,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv2i64 || VT == MVT::nxv2f64) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 2, 3, AArch64::LD1D_2Z_IMM_PSEUDO, AArch64::LD1D_2Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5341,7 +5341,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { } case Intrinsic::aarch64_sve_ld1_pn_x4: { if (VT == MVT::nxv16i8) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 4, 0, AArch64::LD1B_4Z_IMM_PSEUDO, AArch64::LD1B_4Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5352,7 +5352,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { return; } else if (VT == MVT::nxv8i16 || VT == MVT::nxv8f16 || VT == MVT::nxv8bf16) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 4, 1, AArch64::LD1H_4Z_IMM_PSEUDO, AArch64::LD1H_4Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5362,7 +5362,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv4i32 || VT == MVT::nxv4f32) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 4, 2, AArch64::LD1W_4Z_IMM_PSEUDO, AArch64::LD1W_4Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5372,7 +5372,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv2i64 || VT == MVT::nxv2f64) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad( Node, 4, 3, AArch64::LD1D_4Z_IMM_PSEUDO, AArch64::LD1D_4Z_PSEUDO); else if (Subtarget->hasSVE2p1()) @@ -5386,7 +5386,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { } case Intrinsic::aarch64_sve_ldnt1_pn_x2: { if (VT == MVT::nxv16i8) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 2, 0, AArch64::LDNT1B_2Z_IMM_PSEUDO, AArch64::LDNT1B_2Z_PSEUDO); @@ -5398,7 +5398,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { return; } else if (VT == MVT::nxv8i16 || VT == MVT::nxv8f16 || VT == MVT::nxv8bf16) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 2, 1, AArch64::LDNT1H_2Z_IMM_PSEUDO, AArch64::LDNT1H_2Z_PSEUDO); @@ -5409,7 +5409,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv4i32 || VT == MVT::nxv4f32) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 2, 2, AArch64::LDNT1W_2Z_IMM_PSEUDO, AArch64::LDNT1W_2Z_PSEUDO); @@ -5420,7 +5420,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv2i64 || VT == MVT::nxv2f64) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 2, 3, AArch64::LDNT1D_2Z_IMM_PSEUDO, AArch64::LDNT1D_2Z_PSEUDO); @@ -5435,7 +5435,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { } case Intrinsic::aarch64_sve_ldnt1_pn_x4: { if (VT == MVT::nxv16i8) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 4, 0, AArch64::LDNT1B_4Z_IMM_PSEUDO, AArch64::LDNT1B_4Z_PSEUDO); @@ -5447,7 +5447,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { return; } else if (VT == MVT::nxv8i16 || VT == MVT::nxv8f16 || VT == MVT::nxv8bf16) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 4, 1, AArch64::LDNT1H_4Z_IMM_PSEUDO, AArch64::LDNT1H_4Z_PSEUDO); @@ -5458,7 +5458,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv4i32 || VT == MVT::nxv4f32) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 4, 2, AArch64::LDNT1W_4Z_IMM_PSEUDO, AArch64::LDNT1W_4Z_PSEUDO); @@ -5469,7 +5469,7 @@ void AArch64DAGToDAGISel::Select(SDNode *Node) { break; return; } else if (VT == MVT::nxv2i64 || VT == MVT::nxv2f64) { - if (Subtarget->hasSME2()) + if (Subtarget->hasSME2() && Subtarget->isStreaming()) SelectContiguousMultiVectorLoad(Node, 4, 3, AArch64::LDNT1D_4Z_IMM_PSEUDO, AArch64::LDNT1D_4Z_PSEUDO); diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp index acea13c..77c0773 100644 --- a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp +++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp @@ -3101,6 +3101,83 @@ AArch64TargetLowering::EmitGetSMESaveSize(MachineInstr &MI, return BB; } +// Helper function to find the instruction that defined a virtual register. +// If unable to find such instruction, returns nullptr. +static const MachineInstr *stripVRegCopies(const MachineRegisterInfo &MRI, + Register Reg) { + while (Reg.isVirtual()) { + MachineInstr *DefMI = MRI.getVRegDef(Reg); + assert(DefMI && "Virtual register definition not found"); + unsigned Opcode = DefMI->getOpcode(); + + if (Opcode == AArch64::COPY) { + Reg = DefMI->getOperand(1).getReg(); + // Vreg is defined by copying from physreg. + if (Reg.isPhysical()) + return DefMI; + continue; + } + if (Opcode == AArch64::SUBREG_TO_REG) { + Reg = DefMI->getOperand(2).getReg(); + continue; + } + + return DefMI; + } + return nullptr; +} + +void AArch64TargetLowering::fixupPtrauthDiscriminator( + MachineInstr &MI, MachineBasicBlock *BB, MachineOperand &IntDiscOp, + MachineOperand &AddrDiscOp, const TargetRegisterClass *AddrDiscRC) const { + const TargetInstrInfo *TII = Subtarget->getInstrInfo(); + MachineRegisterInfo &MRI = MI.getMF()->getRegInfo(); + const DebugLoc &DL = MI.getDebugLoc(); + + Register AddrDisc = AddrDiscOp.getReg(); + int64_t IntDisc = IntDiscOp.getImm(); + assert(IntDisc == 0 && "Blend components are already expanded"); + + const MachineInstr *DiscMI = stripVRegCopies(MRI, AddrDisc); + if (DiscMI) { + switch (DiscMI->getOpcode()) { + case AArch64::MOVKXi: + // blend(addr, imm) which is lowered as "MOVK addr, #imm, #48". + // #imm should be an immediate and not a global symbol, for example. + if (DiscMI->getOperand(2).isImm() && + DiscMI->getOperand(3).getImm() == 48) { + AddrDisc = DiscMI->getOperand(1).getReg(); + IntDisc = DiscMI->getOperand(2).getImm(); + } + break; + case AArch64::MOVi32imm: + case AArch64::MOVi64imm: + // Small immediate integer constant passed via VReg. + if (DiscMI->getOperand(1).isImm() && + isUInt<16>(DiscMI->getOperand(1).getImm())) { + AddrDisc = AArch64::NoRegister; + IntDisc = DiscMI->getOperand(1).getImm(); + } + break; + } + } + + // For uniformity, always use NoRegister, as XZR is not necessarily contained + // in the requested register class. + if (AddrDisc == AArch64::XZR) + AddrDisc = AArch64::NoRegister; + + // Make sure AddrDisc operand respects the register class imposed by MI. + if (AddrDisc && MRI.getRegClass(AddrDisc) != AddrDiscRC) { + Register TmpReg = MRI.createVirtualRegister(AddrDiscRC); + BuildMI(*BB, MI, DL, TII->get(AArch64::COPY), TmpReg).addReg(AddrDisc); + AddrDisc = TmpReg; + } + + AddrDiscOp.setReg(AddrDisc); + IntDiscOp.setImm(IntDisc); +} + MachineBasicBlock *AArch64TargetLowering::EmitInstrWithCustomInserter( MachineInstr &MI, MachineBasicBlock *BB) const { @@ -3199,6 +3276,11 @@ MachineBasicBlock *AArch64TargetLowering::EmitInstrWithCustomInserter( return EmitZTInstr(MI, BB, AArch64::ZERO_T, /*Op0IsDef=*/true); case AArch64::MOVT_TIZ_PSEUDO: return EmitZTInstr(MI, BB, AArch64::MOVT_TIZ, /*Op0IsDef=*/true); + + case AArch64::PAC: + fixupPtrauthDiscriminator(MI, BB, MI.getOperand(3), MI.getOperand(4), + &AArch64::GPR64noipRegClass); + return BB; } } @@ -11243,7 +11325,7 @@ static SDValue emitFloatCompareMask(SDValue LHS, SDValue RHS, SDValue TVal, SDValue AArch64TargetLowering::LowerSELECT_CC( ISD::CondCode CC, SDValue LHS, SDValue RHS, SDValue TVal, SDValue FVal, - iterator_range<SDNode::user_iterator> Users, bool HasNoNaNs, + iterator_range<SDNode::user_iterator> Users, SDNodeFlags Flags, const SDLoc &DL, SelectionDAG &DAG) const { // Handle f128 first, because it will result in a comparison of some RTLIB // call result against zero. @@ -11441,7 +11523,7 @@ SDValue AArch64TargetLowering::LowerSELECT_CC( return true; } })) { - bool NoNaNs = getTargetMachine().Options.NoNaNsFPMath || HasNoNaNs; + bool NoNaNs = getTargetMachine().Options.NoNaNsFPMath || Flags.hasNoNaNs(); SDValue VectorCmp = emitFloatCompareMask(LHS, RHS, TVal, FVal, CC, NoNaNs, DL, DAG); if (VectorCmp) @@ -11455,7 +11537,7 @@ SDValue AArch64TargetLowering::LowerSELECT_CC( AArch64CC::CondCode CC1, CC2; changeFPCCToAArch64CC(CC, CC1, CC2); - if (DAG.getTarget().Options.UnsafeFPMath) { + if (Flags.hasNoSignedZeros()) { // Transform "a == 0.0 ? 0.0 : x" to "a == 0.0 ? a : x" and // "a != 0.0 ? x : 0.0" to "a != 0.0 ? x : a" to avoid materializing 0.0. ConstantFPSDNode *RHSVal = dyn_cast<ConstantFPSDNode>(RHS); @@ -11534,10 +11616,9 @@ SDValue AArch64TargetLowering::LowerSELECT_CC(SDValue Op, SDValue RHS = Op.getOperand(1); SDValue TVal = Op.getOperand(2); SDValue FVal = Op.getOperand(3); - bool HasNoNans = Op->getFlags().hasNoNaNs(); + SDNodeFlags Flags = Op->getFlags(); SDLoc DL(Op); - return LowerSELECT_CC(CC, LHS, RHS, TVal, FVal, Op->users(), HasNoNans, DL, - DAG); + return LowerSELECT_CC(CC, LHS, RHS, TVal, FVal, Op->users(), Flags, DL, DAG); } SDValue AArch64TargetLowering::LowerSELECT(SDValue Op, @@ -11545,7 +11626,6 @@ SDValue AArch64TargetLowering::LowerSELECT(SDValue Op, SDValue CCVal = Op->getOperand(0); SDValue TVal = Op->getOperand(1); SDValue FVal = Op->getOperand(2); - bool HasNoNans = Op->getFlags().hasNoNaNs(); SDLoc DL(Op); EVT Ty = Op.getValueType(); @@ -11612,8 +11692,8 @@ SDValue AArch64TargetLowering::LowerSELECT(SDValue Op, DAG.getUNDEF(MVT::f32), FVal); } - SDValue Res = - LowerSELECT_CC(CC, LHS, RHS, TVal, FVal, Op->users(), HasNoNans, DL, DAG); + SDValue Res = LowerSELECT_CC(CC, LHS, RHS, TVal, FVal, Op->users(), + Op->getFlags(), DL, DAG); if ((Ty == MVT::f16 || Ty == MVT::bf16) && !Subtarget->hasFullFP16()) { return DAG.getTargetExtractSubreg(AArch64::hsub, DL, Ty, Res); @@ -12210,7 +12290,9 @@ SDValue AArch64TargetLowering::getSqrtEstimate(SDValue Operand, SDLoc DL(Operand); EVT VT = Operand.getValueType(); - SDNodeFlags Flags = SDNodeFlags::AllowReassociation; + // Ensure nodes can be recognized by isAssociativeAndCommutative. + SDNodeFlags Flags = + SDNodeFlags::AllowReassociation | SDNodeFlags::NoSignedZeros; // Newton reciprocal square root iteration: E * 0.5 * (3 - X * E^2) // AArch64 reciprocal square root iteration instruction: 0.5 * (3 - M * N) @@ -16592,7 +16674,7 @@ bool AArch64TargetLowering::isProfitableToHoist(Instruction *I) const { return !(isFMAFasterThanFMulAndFAdd(*F, Ty) && isOperationLegalOrCustom(ISD::FMA, getValueType(DL, Ty)) && (Options.AllowFPOpFusion == FPOpFusion::Fast || - Options.UnsafeFPMath)); + I->getFastMathFlags().allowContract())); } // All 32-bit GPR operations implicitly zero the high-half of the corresponding @@ -26844,6 +26926,23 @@ static SDValue performSHLCombine(SDNode *N, return DAG.getNode(ISD::AND, DL, VT, NewShift, NewRHS); } +static SDValue performRNDRCombine(SDNode *N, SelectionDAG &DAG) { + unsigned IntrinsicID = N->getConstantOperandVal(1); + auto Register = + (IntrinsicID == Intrinsic::aarch64_rndr ? AArch64SysReg::RNDR + : AArch64SysReg::RNDRRS); + SDLoc DL(N); + SDValue A = DAG.getNode( + AArch64ISD::MRS, DL, DAG.getVTList(MVT::i64, FlagsVT, MVT::Other), + N->getOperand(0), DAG.getConstant(Register, DL, MVT::i32)); + SDValue B = DAG.getNode( + AArch64ISD::CSINC, DL, MVT::i32, DAG.getConstant(0, DL, MVT::i32), + DAG.getConstant(0, DL, MVT::i32), + DAG.getConstant(AArch64CC::NE, DL, MVT::i32), A.getValue(1)); + return DAG.getMergeValues( + {A, DAG.getZExtOrTrunc(B, DL, MVT::i1), A.getValue(2)}, DL); +} + SDValue AArch64TargetLowering::PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const { SelectionDAG &DAG = DCI.DAG; @@ -27159,22 +27258,8 @@ SDValue AArch64TargetLowering::PerformDAGCombine(SDNode *N, case Intrinsic::aarch64_sve_st1_scatter_scalar_offset: return performScatterStoreCombine(N, DAG, AArch64ISD::SST1_IMM_PRED); case Intrinsic::aarch64_rndr: - case Intrinsic::aarch64_rndrrs: { - unsigned IntrinsicID = N->getConstantOperandVal(1); - auto Register = - (IntrinsicID == Intrinsic::aarch64_rndr ? AArch64SysReg::RNDR - : AArch64SysReg::RNDRRS); - SDLoc DL(N); - SDValue A = DAG.getNode( - AArch64ISD::MRS, DL, DAG.getVTList(MVT::i64, FlagsVT, MVT::Other), - N->getOperand(0), DAG.getConstant(Register, DL, MVT::i32)); - SDValue B = DAG.getNode( - AArch64ISD::CSINC, DL, MVT::i32, DAG.getConstant(0, DL, MVT::i32), - DAG.getConstant(0, DL, MVT::i32), - DAG.getConstant(AArch64CC::NE, DL, MVT::i32), A.getValue(1)); - return DAG.getMergeValues( - {A, DAG.getZExtOrTrunc(B, DL, MVT::i1), A.getValue(2)}, DL); - } + case Intrinsic::aarch64_rndrrs: + return performRNDRCombine(N, DAG); case Intrinsic::aarch64_sme_ldr_zt: return DAG.getNode(AArch64ISD::RESTORE_ZT, SDLoc(N), DAG.getVTList(MVT::Other), N->getOperand(0), diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.h b/llvm/lib/Target/AArch64/AArch64ISelLowering.h index d8403c2..ea63edd8 100644 --- a/llvm/lib/Target/AArch64/AArch64ISelLowering.h +++ b/llvm/lib/Target/AArch64/AArch64ISelLowering.h @@ -182,6 +182,13 @@ public: MachineBasicBlock *EmitGetSMESaveSize(MachineInstr &MI, MachineBasicBlock *BB) const; + /// Replace (0, vreg) discriminator components with the operands of blend + /// or with (immediate, NoRegister) when possible. + void fixupPtrauthDiscriminator(MachineInstr &MI, MachineBasicBlock *BB, + MachineOperand &IntDiscOp, + MachineOperand &AddrDiscOp, + const TargetRegisterClass *AddrDiscRC) const; + MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr &MI, MachineBasicBlock *MBB) const override; @@ -655,7 +662,7 @@ private: SDValue LowerSELECT_CC(ISD::CondCode CC, SDValue LHS, SDValue RHS, SDValue TVal, SDValue FVal, iterator_range<SDNode::user_iterator> Users, - bool HasNoNans, const SDLoc &dl, + SDNodeFlags Flags, const SDLoc &dl, SelectionDAG &DAG) const; SDValue LowerINIT_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const; SDValue LowerADJUST_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const; diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp index 802e4a9..59d4fd2 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.cpp @@ -20,7 +20,6 @@ #include "Utils/AArch64BaseInfo.h" #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/STLExtras.h" -#include "llvm/ADT/SmallSet.h" #include "llvm/ADT/SmallVector.h" #include "llvm/CodeGen/CFIInstBuilder.h" #include "llvm/CodeGen/LivePhysRegs.h" @@ -36,7 +35,6 @@ #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/RegisterScavenging.h" #include "llvm/CodeGen/StackMaps.h" -#include "llvm/CodeGen/TargetOpcodes.h" #include "llvm/CodeGen/TargetRegisterInfo.h" #include "llvm/CodeGen/TargetSubtargetInfo.h" #include "llvm/IR/DebugInfoMetadata.h" @@ -6576,10 +6574,8 @@ static bool isCombineInstrCandidateFP(const MachineInstr &Inst) { TargetOptions Options = Inst.getParent()->getParent()->getTarget().Options; // We can fuse FADD/FSUB with FMUL, if fusion is either allowed globally by // the target options or if FADD/FSUB has the contract fast-math flag. - return Options.UnsafeFPMath || - Options.AllowFPOpFusion == FPOpFusion::Fast || + return Options.AllowFPOpFusion == FPOpFusion::Fast || Inst.getFlag(MachineInstr::FmContract); - return true; } return false; } @@ -6682,9 +6678,8 @@ bool AArch64InstrInfo::isAssociativeAndCommutative(const MachineInstr &Inst, case AArch64::FMUL_ZZZ_H: case AArch64::FMUL_ZZZ_S: case AArch64::FMUL_ZZZ_D: - return Inst.getParent()->getParent()->getTarget().Options.UnsafeFPMath || - (Inst.getFlag(MachineInstr::MIFlag::FmReassoc) && - Inst.getFlag(MachineInstr::MIFlag::FmNsz)); + return Inst.getFlag(MachineInstr::MIFlag::FmReassoc) && + Inst.getFlag(MachineInstr::MIFlag::FmNsz); // == Integer types == // -- Base instructions -- @@ -7354,9 +7349,6 @@ bool AArch64InstrInfo::isThroughputPattern(unsigned Pattern) const { case AArch64MachineCombinerPattern::MULSUBv2i32_indexed_OP2: case AArch64MachineCombinerPattern::MULSUBv4i32_indexed_OP1: case AArch64MachineCombinerPattern::MULSUBv4i32_indexed_OP2: - case AArch64MachineCombinerPattern::GATHER_LANE_i32: - case AArch64MachineCombinerPattern::GATHER_LANE_i16: - case AArch64MachineCombinerPattern::GATHER_LANE_i8: return true; } // end switch (Pattern) return false; @@ -7397,252 +7389,11 @@ static bool getMiscPatterns(MachineInstr &Root, return false; } -static bool getGatherPattern(MachineInstr &Root, - SmallVectorImpl<unsigned> &Patterns, - unsigned LoadLaneOpCode, unsigned NumLanes) { - const MachineFunction *MF = Root.getMF(); - - // Early exit if optimizing for size. - if (MF->getFunction().hasMinSize()) - return false; - - const MachineRegisterInfo &MRI = MF->getRegInfo(); - const TargetRegisterInfo *TRI = MF->getSubtarget().getRegisterInfo(); - - // The root of the pattern must load into the last lane of the vector. - if (Root.getOperand(2).getImm() != NumLanes - 1) - return false; - - // Check that we have load into all lanes except lane 0. - // For each load we also want to check that: - // 1. It has a single non-debug use (since we will be replacing the virtual - // register) - // 2. That the addressing mode only uses a single offset register. - auto *CurrInstr = MRI.getUniqueVRegDef(Root.getOperand(1).getReg()); - auto Range = llvm::seq<unsigned>(1, NumLanes - 1); - SmallSet<unsigned, 4> RemainingLanes(Range.begin(), Range.end()); - while (!RemainingLanes.empty() && CurrInstr && - CurrInstr->getOpcode() == LoadLaneOpCode && - MRI.hasOneNonDBGUse(CurrInstr->getOperand(0).getReg()) && - CurrInstr->getNumOperands() == 4) { - RemainingLanes.erase(CurrInstr->getOperand(2).getImm()); - CurrInstr = MRI.getUniqueVRegDef(CurrInstr->getOperand(1).getReg()); - } - - if (!RemainingLanes.empty()) - return false; - - // Match the SUBREG_TO_REG sequence. - if (CurrInstr->getOpcode() != TargetOpcode::SUBREG_TO_REG) - return false; - - // Verify that the subreg to reg loads an integer into the first lane. - auto Lane0LoadReg = CurrInstr->getOperand(2).getReg(); - unsigned SingleLaneSizeInBits = 128 / NumLanes; - if (TRI->getRegSizeInBits(Lane0LoadReg, MRI) != SingleLaneSizeInBits) - return false; - - // Verify that it also has a single non debug use. - if (!MRI.hasOneNonDBGUse(Lane0LoadReg)) - return false; - - switch (NumLanes) { - case 4: - Patterns.push_back(AArch64MachineCombinerPattern::GATHER_LANE_i32); - break; - case 8: - Patterns.push_back(AArch64MachineCombinerPattern::GATHER_LANE_i16); - break; - case 16: - Patterns.push_back(AArch64MachineCombinerPattern::GATHER_LANE_i8); - break; - default: - llvm_unreachable("Got bad number of lanes for gather pattern."); - } - - return true; -} - -/// Search for patterns where we use LD1 instructions to load into -/// separate lanes of an 128 bit Neon register. We can increase Memory Level -/// Parallelism by loading into 2 Neon registers instead. -static bool getLoadPatterns(MachineInstr &Root, - SmallVectorImpl<unsigned> &Patterns) { - - // The pattern searches for loads into single lanes. - switch (Root.getOpcode()) { - case AArch64::LD1i32: - return getGatherPattern(Root, Patterns, Root.getOpcode(), 4); - case AArch64::LD1i16: - return getGatherPattern(Root, Patterns, Root.getOpcode(), 8); - case AArch64::LD1i8: - return getGatherPattern(Root, Patterns, Root.getOpcode(), 16); - default: - return false; - } -} - -static void -generateGatherPattern(MachineInstr &Root, - SmallVectorImpl<MachineInstr *> &InsInstrs, - SmallVectorImpl<MachineInstr *> &DelInstrs, - DenseMap<Register, unsigned> &InstrIdxForVirtReg, - unsigned Pattern, unsigned NumLanes) { - - MachineFunction &MF = *Root.getParent()->getParent(); - MachineRegisterInfo &MRI = MF.getRegInfo(); - const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo(); - - // Gather the initial load instructions to build the pattern - SmallVector<MachineInstr *, 16> LoadToLaneInstrs; - MachineInstr *CurrInstr = &Root; - for (unsigned i = 0; i < NumLanes - 1; ++i) { - LoadToLaneInstrs.push_back(CurrInstr); - CurrInstr = MRI.getUniqueVRegDef(CurrInstr->getOperand(1).getReg()); - } - - // Sort the load instructions according to the lane. - llvm::sort(LoadToLaneInstrs, - [](const MachineInstr *A, const MachineInstr *B) { - return A->getOperand(2).getImm() > B->getOperand(2).getImm(); - }); - - MachineInstr *SubregToReg = CurrInstr; - LoadToLaneInstrs.push_back( - MRI.getUniqueVRegDef(SubregToReg->getOperand(2).getReg())); - auto LoadToLaneInstrsAscending = llvm::reverse(LoadToLaneInstrs); - - const TargetRegisterClass *FPR128RegClass = - MRI.getRegClass(Root.getOperand(0).getReg()); - - auto LoadLaneToRegister = [&](MachineInstr *OriginalInstr, - Register SrcRegister, unsigned Lane, - Register OffsetRegister) { - auto NewRegister = MRI.createVirtualRegister(FPR128RegClass); - MachineInstrBuilder LoadIndexIntoRegister = - BuildMI(MF, MIMetadata(*OriginalInstr), TII->get(Root.getOpcode()), - NewRegister) - .addReg(SrcRegister) - .addImm(Lane) - .addReg(OffsetRegister, getKillRegState(true)); - InstrIdxForVirtReg.insert(std::make_pair(NewRegister, InsInstrs.size())); - InsInstrs.push_back(LoadIndexIntoRegister); - return NewRegister; - }; - - // Helper to create load instruction based on opcode - auto CreateLoadInstruction = [&](unsigned NumLanes, Register DestReg, - Register OffsetReg) -> MachineInstrBuilder { - unsigned Opcode; - switch (NumLanes) { - case 4: - Opcode = AArch64::LDRSui; - break; - case 8: - Opcode = AArch64::LDRHui; - break; - case 16: - Opcode = AArch64::LDRBui; - break; - default: - llvm_unreachable( - "Got unsupported number of lanes in machine-combiner gather pattern"); - } - // Immediate offset load - return BuildMI(MF, MIMetadata(Root), TII->get(Opcode), DestReg) - .addReg(OffsetReg) - .addImm(0); // immediate offset - }; - - // Load the remaining lanes into register 0. - auto LanesToLoadToReg0 = - llvm::make_range(LoadToLaneInstrsAscending.begin() + 1, - LoadToLaneInstrsAscending.begin() + NumLanes / 2); - auto PrevReg = SubregToReg->getOperand(0).getReg(); - for (auto [Index, LoadInstr] : llvm::enumerate(LanesToLoadToReg0)) { - PrevReg = LoadLaneToRegister(LoadInstr, PrevReg, Index + 1, - LoadInstr->getOperand(3).getReg()); - DelInstrs.push_back(LoadInstr); - } - auto LastLoadReg0 = PrevReg; - - // First load into register 1. Perform a LDRSui to zero out the upper lanes in - // a single instruction. - auto Lane0Load = *LoadToLaneInstrsAscending.begin(); - auto OriginalSplitLoad = - *std::next(LoadToLaneInstrsAscending.begin(), NumLanes / 2); - auto DestRegForMiddleIndex = MRI.createVirtualRegister( - MRI.getRegClass(Lane0Load->getOperand(0).getReg())); - - MachineInstrBuilder MiddleIndexLoadInstr = - CreateLoadInstruction(NumLanes, DestRegForMiddleIndex, - OriginalSplitLoad->getOperand(3).getReg()); - - InstrIdxForVirtReg.insert( - std::make_pair(DestRegForMiddleIndex, InsInstrs.size())); - InsInstrs.push_back(MiddleIndexLoadInstr); - DelInstrs.push_back(OriginalSplitLoad); - - // Subreg To Reg instruction for register 1. - auto DestRegForSubregToReg = MRI.createVirtualRegister(FPR128RegClass); - unsigned SubregType; - switch (NumLanes) { - case 4: - SubregType = AArch64::ssub; - break; - case 8: - SubregType = AArch64::hsub; - break; - case 16: - SubregType = AArch64::bsub; - break; - default: - llvm_unreachable( - "Got invalid NumLanes for machine-combiner gather pattern"); - } - - auto SubRegToRegInstr = - BuildMI(MF, MIMetadata(Root), TII->get(SubregToReg->getOpcode()), - DestRegForSubregToReg) - .addImm(0) - .addReg(DestRegForMiddleIndex, getKillRegState(true)) - .addImm(SubregType); - InstrIdxForVirtReg.insert( - std::make_pair(DestRegForSubregToReg, InsInstrs.size())); - InsInstrs.push_back(SubRegToRegInstr); - - // Load remaining lanes into register 1. - auto LanesToLoadToReg1 = - llvm::make_range(LoadToLaneInstrsAscending.begin() + NumLanes / 2 + 1, - LoadToLaneInstrsAscending.end()); - PrevReg = SubRegToRegInstr->getOperand(0).getReg(); - for (auto [Index, LoadInstr] : llvm::enumerate(LanesToLoadToReg1)) { - PrevReg = LoadLaneToRegister(LoadInstr, PrevReg, Index + 1, - LoadInstr->getOperand(3).getReg()); - if (Index == NumLanes / 2 - 2) { - break; - } - DelInstrs.push_back(LoadInstr); - } - auto LastLoadReg1 = PrevReg; - - // Create the final zip instruction to combine the results. - MachineInstrBuilder ZipInstr = - BuildMI(MF, MIMetadata(Root), TII->get(AArch64::ZIP1v2i64), - Root.getOperand(0).getReg()) - .addReg(LastLoadReg0) - .addReg(LastLoadReg1); - InsInstrs.push_back(ZipInstr); -} - CombinerObjective AArch64InstrInfo::getCombinerObjective(unsigned Pattern) const { switch (Pattern) { case AArch64MachineCombinerPattern::SUBADD_OP1: case AArch64MachineCombinerPattern::SUBADD_OP2: - case AArch64MachineCombinerPattern::GATHER_LANE_i32: - case AArch64MachineCombinerPattern::GATHER_LANE_i16: - case AArch64MachineCombinerPattern::GATHER_LANE_i8: return CombinerObjective::MustReduceDepth; default: return TargetInstrInfo::getCombinerObjective(Pattern); @@ -7672,10 +7423,6 @@ bool AArch64InstrInfo::getMachineCombinerPatterns( if (getMiscPatterns(Root, Patterns)) return true; - // Load patterns - if (getLoadPatterns(Root, Patterns)) - return true; - return TargetInstrInfo::getMachineCombinerPatterns(Root, Patterns, DoRegPressureReduce); } @@ -8931,21 +8678,6 @@ void AArch64InstrInfo::genAlternativeCodeSequence( MUL = genFNegatedMAD(MF, MRI, TII, Root, InsInstrs); break; } - case AArch64MachineCombinerPattern::GATHER_LANE_i32: { - generateGatherPattern(Root, InsInstrs, DelInstrs, InstrIdxForVirtReg, - Pattern, 4); - break; - } - case AArch64MachineCombinerPattern::GATHER_LANE_i16: { - generateGatherPattern(Root, InsInstrs, DelInstrs, InstrIdxForVirtReg, - Pattern, 8); - break; - } - case AArch64MachineCombinerPattern::GATHER_LANE_i8: { - generateGatherPattern(Root, InsInstrs, DelInstrs, InstrIdxForVirtReg, - Pattern, 16); - break; - } } // end switch (Pattern) // Record MUL and ADD/SUB for deletion diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.h b/llvm/lib/Target/AArch64/AArch64InstrInfo.h index 02734866..7c255da 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.h +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.h @@ -172,10 +172,6 @@ enum AArch64MachineCombinerPattern : unsigned { FMULv8i16_indexed_OP2, FNMADD, - - GATHER_LANE_i32, - GATHER_LANE_i16, - GATHER_LANE_i8 }; class AArch64InstrInfo final : public AArch64GenInstrInfo { const AArch64RegisterInfo RI; diff --git a/llvm/lib/Target/AArch64/AArch64InstrInfo.td b/llvm/lib/Target/AArch64/AArch64InstrInfo.td index df79de1..07cacfa 100644 --- a/llvm/lib/Target/AArch64/AArch64InstrInfo.td +++ b/llvm/lib/Target/AArch64/AArch64InstrInfo.td @@ -2033,7 +2033,7 @@ let Predicates = [HasPAuth] in { def DZB : SignAuthZero<prefix_z, 0b11, !strconcat(asm, "dzb"), op>; } - defm PAC : SignAuth<0b000, 0b010, "pac", int_ptrauth_sign>; + defm PAC : SignAuth<0b000, 0b010, "pac", null_frag>; defm AUT : SignAuth<0b001, 0b011, "aut", null_frag>; def XPACI : ClearAuth<0, "xpaci">; @@ -2153,6 +2153,26 @@ let Predicates = [HasPAuth] in { let Uses = []; } + // PAC pseudo instruction. In AsmPrinter, it is expanded into an actual PAC* + // instruction immediately preceded by the discriminator computation. + // This enforces the expected immediate modifier is used for signing, even + // if an attacker is able to substitute AddrDisc. + def PAC : Pseudo<(outs GPR64:$SignedVal), + (ins GPR64:$Val, i32imm:$Key, i64imm:$Disc, GPR64noip:$AddrDisc), + [], "$SignedVal = $Val">, Sched<[WriteI, ReadI]> { + let isCodeGenOnly = 1; + let hasSideEffects = 0; + let mayStore = 0; + let mayLoad = 0; + let Size = 12; + let Defs = [X16, X17]; + let usesCustomInserter = 1; + } + + // A standalone pattern is used, so that literal 0 can be passed as $Disc. + def : Pat<(int_ptrauth_sign GPR64:$Val, timm:$Key, GPR64noip:$AddrDisc), + (PAC GPR64:$Val, $Key, 0, GPR64noip:$AddrDisc)>; + // AUT and re-PAC a value, using different keys/data. // This directly manipulates x16/x17, which are the only registers that // certain OSs guarantee are safe to use for sensitive operations. diff --git a/llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp b/llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp index abcd550..b97d622 100644 --- a/llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp +++ b/llvm/lib/Target/AArch64/AArch64MIPeepholeOpt.cpp @@ -12,7 +12,7 @@ // MOVi64imm + ANDS?Xrr ==> ANDXri + ANDS?Xri // // 2. MOVi32imm + ADDWrr ==> ADDWRi + ADDWRi -// MOVi64imm + ADDXrr ==> ANDXri + ANDXri +// MOVi64imm + ADDXrr ==> ADDXri + ADDXri // // 3. MOVi32imm + SUBWrr ==> SUBWRi + SUBWRi // MOVi64imm + SUBXrr ==> SUBXri + SUBXri @@ -125,8 +125,13 @@ struct AArch64MIPeepholeOpt : public MachineFunctionPass { template <typename T> bool visitADDSSUBS(OpcodePair PosOpcs, OpcodePair NegOpcs, MachineInstr &MI); + // Strategy used to split logical immediate bitmasks. + enum class SplitStrategy { + Intersect, + }; template <typename T> - bool visitAND(unsigned Opc, MachineInstr &MI, unsigned OtherOpc = 0); + bool trySplitLogicalImm(unsigned Opc, MachineInstr &MI, + SplitStrategy Strategy, unsigned OtherOpc = 0); bool visitORR(MachineInstr &MI); bool visitCSEL(MachineInstr &MI); bool visitINSERT(MachineInstr &MI); @@ -158,14 +163,6 @@ INITIALIZE_PASS(AArch64MIPeepholeOpt, "aarch64-mi-peephole-opt", template <typename T> static bool splitBitmaskImm(T Imm, unsigned RegSize, T &Imm1Enc, T &Imm2Enc) { T UImm = static_cast<T>(Imm); - if (AArch64_AM::isLogicalImmediate(UImm, RegSize)) - return false; - - // If this immediate can be handled by one instruction, do not split it. - SmallVector<AArch64_IMM::ImmInsnModel, 4> Insn; - AArch64_IMM::expandMOVImm(UImm, RegSize, Insn); - if (Insn.size() == 1) - return false; // The bitmask immediate consists of consecutive ones. Let's say there is // constant 0b00000000001000000000010000000000 which does not consist of @@ -194,8 +191,9 @@ static bool splitBitmaskImm(T Imm, unsigned RegSize, T &Imm1Enc, T &Imm2Enc) { } template <typename T> -bool AArch64MIPeepholeOpt::visitAND(unsigned Opc, MachineInstr &MI, - unsigned OtherOpc) { +bool AArch64MIPeepholeOpt::trySplitLogicalImm(unsigned Opc, MachineInstr &MI, + SplitStrategy Strategy, + unsigned OtherOpc) { // Try below transformation. // // MOVi32imm + ANDS?Wrr ==> ANDWri + ANDS?Wri @@ -208,9 +206,26 @@ bool AArch64MIPeepholeOpt::visitAND(unsigned Opc, MachineInstr &MI, return splitTwoPartImm<T>( MI, - [Opc, OtherOpc](T Imm, unsigned RegSize, T &Imm0, - T &Imm1) -> std::optional<OpcodePair> { - if (splitBitmaskImm(Imm, RegSize, Imm0, Imm1)) + [Opc, Strategy, OtherOpc](T Imm, unsigned RegSize, T &Imm0, + T &Imm1) -> std::optional<OpcodePair> { + // If this immediate is already a suitable bitmask, don't split it. + // TODO: Should we just combine the two instructions in this case? + if (AArch64_AM::isLogicalImmediate(Imm, RegSize)) + return std::nullopt; + + // If this immediate can be handled by one instruction, don't split it. + SmallVector<AArch64_IMM::ImmInsnModel, 4> Insn; + AArch64_IMM::expandMOVImm(Imm, RegSize, Insn); + if (Insn.size() == 1) + return std::nullopt; + + bool SplitSucc = false; + switch (Strategy) { + case SplitStrategy::Intersect: + SplitSucc = splitBitmaskImm(Imm, RegSize, Imm0, Imm1); + break; + } + if (SplitSucc) return std::make_pair(Opc, !OtherOpc ? Opc : OtherOpc); return std::nullopt; }, @@ -859,16 +874,20 @@ bool AArch64MIPeepholeOpt::runOnMachineFunction(MachineFunction &MF) { Changed |= visitINSERT(MI); break; case AArch64::ANDWrr: - Changed |= visitAND<uint32_t>(AArch64::ANDWri, MI); + Changed |= trySplitLogicalImm<uint32_t>(AArch64::ANDWri, MI, + SplitStrategy::Intersect); break; case AArch64::ANDXrr: - Changed |= visitAND<uint64_t>(AArch64::ANDXri, MI); + Changed |= trySplitLogicalImm<uint64_t>(AArch64::ANDXri, MI, + SplitStrategy::Intersect); break; case AArch64::ANDSWrr: - Changed |= visitAND<uint32_t>(AArch64::ANDWri, MI, AArch64::ANDSWri); + Changed |= trySplitLogicalImm<uint32_t>( + AArch64::ANDWri, MI, SplitStrategy::Intersect, AArch64::ANDSWri); break; case AArch64::ANDSXrr: - Changed |= visitAND<uint64_t>(AArch64::ANDXri, MI, AArch64::ANDSXri); + Changed |= trySplitLogicalImm<uint64_t>( + AArch64::ANDXri, MI, SplitStrategy::Intersect, AArch64::ANDSXri); break; case AArch64::ORRWrs: Changed |= visitORR(MI); diff --git a/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp b/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp index c218831..85de2d5 100644 --- a/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp +++ b/llvm/lib/Target/AArch64/AArch64TargetObjectFile.cpp @@ -36,7 +36,7 @@ void AArch64_ELFTargetObjectFile::Initialize(MCContext &Ctx, // SHF_AARCH64_PURECODE flag set if the "+execute-only" target feature is // present. if (TM.getMCSubtargetInfo()->hasFeature(AArch64::FeatureExecuteOnly)) { - auto *Text = cast<MCSectionELF>(TextSection); + auto *Text = static_cast<MCSectionELF *>(TextSection); Text->setFlags(Text->getFlags() | ELF::SHF_AARCH64_PURECODE); } } diff --git a/llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp b/llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp index bb0f667b..e0e1af7 100644 --- a/llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp +++ b/llvm/lib/Target/AArch64/GISel/AArch64LegalizerInfo.cpp @@ -1650,6 +1650,12 @@ bool AArch64LegalizerInfo::legalizeIntrinsic(LegalizerHelper &Helper, MI.eraseFromParent(); return true; }; + auto LowerTriOp = [&MI, &MIB](unsigned Opcode) { + MIB.buildInstr(Opcode, {MI.getOperand(0)}, + {MI.getOperand(2), MI.getOperand(3), MI.getOperand(4)}); + MI.eraseFromParent(); + return true; + }; Intrinsic::ID IntrinsicID = cast<GIntrinsic>(MI).getIntrinsicID(); switch (IntrinsicID) { @@ -1828,6 +1834,10 @@ bool AArch64LegalizerInfo::legalizeIntrinsic(LegalizerHelper &Helper, return LowerBinOp(TargetOpcode::G_USUBSAT); break; } + case Intrinsic::aarch64_neon_udot: + return LowerTriOp(AArch64::G_UDOT); + case Intrinsic::aarch64_neon_sdot: + return LowerTriOp(AArch64::G_SDOT); case Intrinsic::vector_reverse: // TODO: Add support for vector_reverse diff --git a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp index 08f547a..6257e99 100644 --- a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp +++ b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64ELFStreamer.cpp @@ -523,7 +523,8 @@ void AArch64TargetELFStreamer::finish() { // mark it execute-only if it is empty and there is at least one // execute-only section in the object. if (any_of(Asm, [](const MCSection &Sec) { - return cast<MCSectionELF>(Sec).getFlags() & ELF::SHF_AARCH64_PURECODE; + return static_cast<const MCSectionELF &>(Sec).getFlags() & + ELF::SHF_AARCH64_PURECODE; })) { auto *Text = static_cast<MCSectionELF *>(Ctx.getObjectFileInfo()->getTextSection()); diff --git a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp index 1ac340a..a22a17a 100644 --- a/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp +++ b/llvm/lib/Target/AArch64/MCTargetDesc/AArch64MachObjectWriter.cpp @@ -132,7 +132,8 @@ static bool canUseLocalRelocation(const MCSectionMachO &Section, // But only if they don't point to a few forbidden sections. if (!Symbol.isInSection()) return true; - const MCSectionMachO &RefSec = cast<MCSectionMachO>(Symbol.getSection()); + const MCSectionMachO &RefSec = + static_cast<MCSectionMachO &>(Symbol.getSection()); if (RefSec.getType() == MachO::S_CSTRING_LITERALS) return false; |