diff options
Diffstat (limited to 'llvm/lib/Target/RISCV')
| -rw-r--r-- | llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp | 2 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVCallingConv.td | 4 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp | 33 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVISelLowering.cpp | 92 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVISelLowering.h | 1 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td | 15 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td | 52 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp | 29 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp | 15 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp | 65 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h | 4 | ||||
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVVectorPeephole.cpp | 17 |
12 files changed, 191 insertions, 138 deletions
diff --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp index 82e3b5c..9538b20 100644 --- a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp +++ b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp @@ -901,7 +901,7 @@ void RISCVAsmBackend::applyFixup(const MCFragment &F, const MCFixup &Fixup, unsigned Offset = Fixup.getOffset(); unsigned NumBytes = alignTo(Info.TargetSize + Info.TargetOffset, 8) / 8; - assert(Offset + NumBytes <= Data.size() && "Invalid fixup offset!"); + assert(Offset + NumBytes <= F.getSize() && "Invalid fixup offset!"); // For each byte of the fragment that the fixup touches, mask in the // bits from the fixup value. diff --git a/llvm/lib/Target/RISCV/RISCVCallingConv.td b/llvm/lib/Target/RISCV/RISCVCallingConv.td index 4c303a9..da6b95d 100644 --- a/llvm/lib/Target/RISCV/RISCVCallingConv.td +++ b/llvm/lib/Target/RISCV/RISCVCallingConv.td @@ -95,3 +95,7 @@ def CSR_XLEN_F32_V_Interrupt_RVE: CalleeSavedRegs<(sub CSR_XLEN_F32_V_Interrupt, // Same as CSR_XLEN_F64_V_Interrupt, but excluding X16-X31. def CSR_XLEN_F64_V_Interrupt_RVE: CalleeSavedRegs<(sub CSR_XLEN_F64_V_Interrupt, (sequence "X%u", 16, 31))>; + +def CSR_RT_MostRegs : CalleeSavedRegs<(sub CSR_Interrupt, X6, X7, X28)>; +def CSR_RT_MostRegs_RVE : CalleeSavedRegs<(sub CSR_RT_MostRegs, + (sequence "X%u", 16, 31))>; diff --git a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp index 34910b7..5998653 100644 --- a/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp +++ b/llvm/lib/Target/RISCV/RISCVISelDAGToDAG.cpp @@ -634,7 +634,7 @@ bool RISCVDAGToDAGISel::trySignedBitfieldExtract(SDNode *Node) { // Transform (sra (shl X, C1) C2) with C1 < C2 // -> (SignedBitfieldExtract X, msb, lsb) if (N0.getOpcode() == ISD::SHL) { - auto *N01C = dyn_cast<ConstantSDNode>(N0->getOperand(1)); + auto *N01C = dyn_cast<ConstantSDNode>(N0.getOperand(1)); if (!N01C) return false; @@ -750,7 +750,7 @@ bool RISCVDAGToDAGISel::trySignedBitfieldInsertInSign(SDNode *Node) { // Transform (sra (shl X, C1) C2) with C1 > C2 // -> (NDS.BFOS X, lsb, msb) if (N0.getOpcode() == ISD::SHL) { - auto *N01C = dyn_cast<ConstantSDNode>(N0->getOperand(1)); + auto *N01C = dyn_cast<ConstantSDNode>(N0.getOperand(1)); if (!N01C) return false; @@ -1191,7 +1191,7 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { // Optimize (shl (and X, C2), C) -> (slli (srliw X, C3), C3+C) // where C2 has 32 leading zeros and C3 trailing zeros. SDNode *SRLIW = CurDAG->getMachineNode( - RISCV::SRLIW, DL, VT, N0->getOperand(0), + RISCV::SRLIW, DL, VT, N0.getOperand(0), CurDAG->getTargetConstant(TrailingZeros, DL, VT)); SDNode *SLLI = CurDAG->getMachineNode( RISCV::SLLI, DL, VT, SDValue(SRLIW, 0), @@ -1210,7 +1210,7 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { // - without Zba a tablegen pattern applies the very same // transform as we would have done here SDNode *SLLI = CurDAG->getMachineNode( - RISCV::SLLI, DL, VT, N0->getOperand(0), + RISCV::SLLI, DL, VT, N0.getOperand(0), CurDAG->getTargetConstant(LeadingZeros, DL, VT)); SDNode *SRLI = CurDAG->getMachineNode( RISCV::SRLI, DL, VT, SDValue(SLLI, 0), @@ -1239,7 +1239,7 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { unsigned TrailingZeros = llvm::countr_zero(Mask); if (LeadingZeros == 32 && TrailingZeros > ShAmt) { SDNode *SRLIW = CurDAG->getMachineNode( - RISCV::SRLIW, DL, VT, N0->getOperand(0), + RISCV::SRLIW, DL, VT, N0.getOperand(0), CurDAG->getTargetConstant(TrailingZeros, DL, VT)); SDNode *SLLI = CurDAG->getMachineNode( RISCV::SLLI, DL, VT, SDValue(SRLIW, 0), @@ -1266,7 +1266,7 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { if (TrailingOnes == 32) { SDNode *SRLI = CurDAG->getMachineNode( Subtarget->is64Bit() ? RISCV::SRLIW : RISCV::SRLI, DL, VT, - N0->getOperand(0), CurDAG->getTargetConstant(ShAmt, DL, VT)); + N0.getOperand(0), CurDAG->getTargetConstant(ShAmt, DL, VT)); ReplaceNode(Node, SRLI); return; } @@ -1279,19 +1279,19 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { if (HasBitTest && ShAmt + 1 == TrailingOnes) { SDNode *BEXTI = CurDAG->getMachineNode( Subtarget->hasStdExtZbs() ? RISCV::BEXTI : RISCV::TH_TST, DL, VT, - N0->getOperand(0), CurDAG->getTargetConstant(ShAmt, DL, VT)); + N0.getOperand(0), CurDAG->getTargetConstant(ShAmt, DL, VT)); ReplaceNode(Node, BEXTI); return; } const unsigned Msb = TrailingOnes - 1; const unsigned Lsb = ShAmt; - if (tryUnsignedBitfieldExtract(Node, DL, VT, N0->getOperand(0), Msb, Lsb)) + if (tryUnsignedBitfieldExtract(Node, DL, VT, N0.getOperand(0), Msb, Lsb)) return; unsigned LShAmt = Subtarget->getXLen() - TrailingOnes; SDNode *SLLI = - CurDAG->getMachineNode(RISCV::SLLI, DL, VT, N0->getOperand(0), + CurDAG->getMachineNode(RISCV::SLLI, DL, VT, N0.getOperand(0), CurDAG->getTargetConstant(LShAmt, DL, VT)); SDNode *SRLI = CurDAG->getMachineNode( RISCV::SRLI, DL, VT, SDValue(SLLI, 0), @@ -1328,7 +1328,7 @@ void RISCVDAGToDAGISel::Select(SDNode *Node) { break; unsigned LShAmt = Subtarget->getXLen() - ExtSize; SDNode *SLLI = - CurDAG->getMachineNode(RISCV::SLLI, DL, VT, N0->getOperand(0), + CurDAG->getMachineNode(RISCV::SLLI, DL, VT, N0.getOperand(0), CurDAG->getTargetConstant(LShAmt, DL, VT)); SDNode *SRAI = CurDAG->getMachineNode( RISCV::SRAI, DL, VT, SDValue(SLLI, 0), @@ -2827,6 +2827,8 @@ static bool selectConstantAddr(SelectionDAG *CurDAG, const SDLoc &DL, static bool isWorthFoldingAdd(SDValue Add) { for (auto *User : Add->users()) { if (User->getOpcode() != ISD::LOAD && User->getOpcode() != ISD::STORE && + User->getOpcode() != RISCVISD::LD_RV32 && + User->getOpcode() != RISCVISD::SD_RV32 && User->getOpcode() != ISD::ATOMIC_LOAD && User->getOpcode() != ISD::ATOMIC_STORE) return false; @@ -2841,6 +2843,9 @@ static bool isWorthFoldingAdd(SDValue Add) { if (User->getOpcode() == ISD::ATOMIC_STORE && cast<AtomicSDNode>(User)->getVal() == Add) return false; + if (User->getOpcode() == RISCVISD::SD_RV32 && + (User->getOperand(0) == Add || User->getOperand(1) == Add)) + return false; if (isStrongerThanMonotonic(cast<MemSDNode>(User)->getSuccessOrdering())) return false; } @@ -2942,8 +2947,8 @@ bool RISCVDAGToDAGISel::SelectAddrRegImm(SDValue Addr, SDValue &Base, /// Similar to SelectAddrRegImm, except that the offset is restricted to uimm9. bool RISCVDAGToDAGISel::SelectAddrRegImm9(SDValue Addr, SDValue &Base, SDValue &Offset) { - // FIXME: Support FrameIndex. Need to teach eliminateFrameIndex that only - // a 9-bit immediate can be folded. + if (SelectAddrFrameIndex(Addr, Base, Offset)) + return true; SDLoc DL(Addr); MVT VT = Addr.getSimpleValueType(); @@ -2953,8 +2958,8 @@ bool RISCVDAGToDAGISel::SelectAddrRegImm9(SDValue Addr, SDValue &Base, if (isUInt<9>(CVal)) { Base = Addr.getOperand(0); - // FIXME: Support FrameIndex. Need to teach eliminateFrameIndex that only - // a 9-bit immediate can be folded. + if (auto *FIN = dyn_cast<FrameIndexSDNode>(Base)) + Base = CurDAG->getTargetFrameIndex(FIN->getIndex(), VT); Offset = CurDAG->getSignedTargetConstant(CVal, DL, VT); return true; } diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp index 43e4f8e..c0ada51 100644 --- a/llvm/lib/Target/RISCV/RISCVISelLowering.cpp +++ b/llvm/lib/Target/RISCV/RISCVISelLowering.cpp @@ -2739,27 +2739,6 @@ bool RISCVTargetLowering::isLegalElementTypeForRVV(EVT ScalarTy) const { } } -bool RISCVTargetLowering::isLegalLoadStoreElementTypeForRVV( - EVT ScalarTy) const { - if (!ScalarTy.isSimple()) - return false; - switch (ScalarTy.getSimpleVT().SimpleTy) { - case MVT::iPTR: - return Subtarget.is64Bit() ? Subtarget.hasVInstructionsI64() : true; - case MVT::i8: - case MVT::i16: - case MVT::i32: - case MVT::f16: - case MVT::bf16: - case MVT::f32: - return true; - case MVT::i64: - case MVT::f64: - return Subtarget.hasVInstructionsI64(); - default: - return false; - } -} unsigned RISCVTargetLowering::combineRepeatedFPDivisors() const { return NumRepeatedDivisors; @@ -20751,6 +20730,53 @@ SDValue RISCVTargetLowering::PerformDAGCombine(SDNode *N, return DAG.getAllOnesConstant(DL, VT); return DAG.getConstant(0, DL, VT); } + case Intrinsic::riscv_vsseg2_mask: + case Intrinsic::riscv_vsseg3_mask: + case Intrinsic::riscv_vsseg4_mask: + case Intrinsic::riscv_vsseg5_mask: + case Intrinsic::riscv_vsseg6_mask: + case Intrinsic::riscv_vsseg7_mask: + case Intrinsic::riscv_vsseg8_mask: { + SDValue Tuple = N->getOperand(2); + unsigned NF = Tuple.getValueType().getRISCVVectorTupleNumFields(); + + if (Subtarget.hasOptimizedSegmentLoadStore(NF) || !Tuple.hasOneUse() || + Tuple.getOpcode() != RISCVISD::TUPLE_INSERT || + !Tuple.getOperand(0).isUndef()) + return SDValue(); + + SDValue Val = Tuple.getOperand(1); + unsigned Idx = Tuple.getConstantOperandVal(2); + + unsigned SEW = Val.getValueType().getScalarSizeInBits(); + assert(Log2_64(SEW) == N->getConstantOperandVal(6) && + "Type mismatch without bitcast?"); + unsigned Stride = SEW / 8 * NF; + unsigned Offset = SEW / 8 * Idx; + + SDValue Ops[] = { + /*Chain=*/N->getOperand(0), + /*IntID=*/ + DAG.getTargetConstant(Intrinsic::riscv_vsse_mask, DL, XLenVT), + /*StoredVal=*/Val, + /*Ptr=*/ + DAG.getNode(ISD::ADD, DL, XLenVT, N->getOperand(3), + DAG.getConstant(Offset, DL, XLenVT)), + /*Stride=*/DAG.getConstant(Stride, DL, XLenVT), + /*Mask=*/N->getOperand(4), + /*VL=*/N->getOperand(5)}; + + auto *OldMemSD = cast<MemIntrinsicSDNode>(N); + // Match getTgtMemIntrinsic for non-unit stride case + EVT MemVT = OldMemSD->getMemoryVT().getScalarType(); + MachineFunction &MF = DAG.getMachineFunction(); + MachineMemOperand *MMO = MF.getMachineMemOperand( + OldMemSD->getMemOperand(), Offset, MemoryLocation::UnknownSize); + + SDVTList VTs = DAG.getVTList(MVT::Other); + return DAG.getMemIntrinsicNode(ISD::INTRINSIC_VOID, DL, VTs, Ops, MemVT, + MMO); + } } } case ISD::EXPERIMENTAL_VP_REVERSE: @@ -20886,7 +20912,7 @@ SDValue RISCVTargetLowering::PerformDAGCombine(SDNode *N, /*VL=*/Tuple.getOperand(5), /*Policy=*/Tuple.getOperand(6)}; - auto TupleMemSD = cast<MemIntrinsicSDNode>(Tuple); + auto *TupleMemSD = cast<MemIntrinsicSDNode>(Tuple); // Match getTgtMemIntrinsic for non-unit stride case EVT MemVT = TupleMemSD->getMemoryVT().getScalarType(); MachineFunction &MF = DAG.getMachineFunction(); @@ -20899,6 +20925,12 @@ SDValue RISCVTargetLowering::PerformDAGCombine(SDNode *N, DAG.ReplaceAllUsesOfValueWith(Tuple.getValue(1), Result.getValue(1)); return Result.getValue(0); } + case RISCVISD::TUPLE_INSERT: { + // tuple_insert tuple, undef, idx -> tuple + if (N->getOperand(1).isUndef()) + return N->getOperand(0); + break; + } } return SDValue(); @@ -22423,6 +22455,7 @@ SDValue RISCVTargetLowering::LowerFormalArguments( case CallingConv::C: case CallingConv::Fast: case CallingConv::SPIR_KERNEL: + case CallingConv::PreserveMost: case CallingConv::GRAAL: case CallingConv::RISCV_VectorCall: #define CC_VLS_CASE(ABI_VLEN) case CallingConv::RISCV_VLSCall_##ABI_VLEN: @@ -22692,8 +22725,14 @@ SDValue RISCVTargetLowering::LowerCall(CallLoweringInfo &CLI, bool IsVarArg = CLI.IsVarArg; EVT PtrVT = getPointerTy(DAG.getDataLayout()); MVT XLenVT = Subtarget.getXLenVT(); + const CallBase *CB = CLI.CB; MachineFunction &MF = DAG.getMachineFunction(); + MachineFunction::CallSiteInfo CSInfo; + + // Set type id for call site info. + if (MF.getTarget().Options.EmitCallGraphSection && CB && CB->isIndirectCall()) + CSInfo = MachineFunction::CallSiteInfo(*CB); // Analyze the operands of the call, assigning locations to each operand. SmallVector<CCValAssign, 16> ArgLocs; @@ -22951,6 +22990,9 @@ SDValue RISCVTargetLowering::LowerCall(CallLoweringInfo &CLI, if (CLI.CFIType) Ret.getNode()->setCFIType(CLI.CFIType->getZExtValue()); DAG.addNoMergeSiteInfo(Ret.getNode(), CLI.NoMerge); + if (MF.getTarget().Options.EmitCallGraphSection && CB && + CB->isIndirectCall()) + DAG.addCallSiteInfo(Ret.getNode(), std::move(CSInfo)); return Ret; } @@ -22958,6 +23000,10 @@ SDValue RISCVTargetLowering::LowerCall(CallLoweringInfo &CLI, Chain = DAG.getNode(CallOpc, DL, NodeTys, Ops); if (CLI.CFIType) Chain.getNode()->setCFIType(CLI.CFIType->getZExtValue()); + + if (MF.getTarget().Options.EmitCallGraphSection && CB && CB->isIndirectCall()) + DAG.addCallSiteInfo(Chain.getNode(), std::move(CSInfo)); + DAG.addNoMergeSiteInfo(Chain.getNode(), CLI.NoMerge); Glue = Chain.getValue(1); @@ -24316,7 +24362,7 @@ bool RISCVTargetLowering::isLegalStridedLoadStore(EVT DataType, return false; EVT ScalarType = DataType.getScalarType(); - if (!isLegalLoadStoreElementTypeForRVV(ScalarType)) + if (!isLegalElementTypeForRVV(ScalarType)) return false; if (!Subtarget.enableUnalignedVectorMem() && diff --git a/llvm/lib/Target/RISCV/RISCVISelLowering.h b/llvm/lib/Target/RISCV/RISCVISelLowering.h index a788c0b7..ca70c46 100644 --- a/llvm/lib/Target/RISCV/RISCVISelLowering.h +++ b/llvm/lib/Target/RISCV/RISCVISelLowering.h @@ -384,7 +384,6 @@ public: bool shouldRemoveExtendFromGSIndex(SDValue Extend, EVT DataVT) const override; bool isLegalElementTypeForRVV(EVT ScalarTy) const; - bool isLegalLoadStoreElementTypeForRVV(EVT ScalarTy) const; bool shouldConvertFpToSat(unsigned Op, EVT FPVT, EVT VT) const override; diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td b/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td index 6afc942d..03e6f43 100644 --- a/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td +++ b/llvm/lib/Target/RISCV/RISCVInstrInfoVPseudos.td @@ -1510,21 +1510,6 @@ class VPseudoTiedBinaryCarryIn<VReg RetClass, let VLMul = MInfo.value; } -class VPseudoTernaryNoMask<VReg RetClass, - RegisterClass Op1Class, - DAGOperand Op2Class, - string Constraint> : - RISCVVPseudo<(outs RetClass:$rd), - (ins RetClass:$rs3, Op1Class:$rs1, Op2Class:$rs2, - AVL:$vl, sew:$sew)> { - let mayLoad = 0; - let mayStore = 0; - let hasSideEffects = 0; - let Constraints = !interleave([Constraint, "$rd = $rs3"], ","); - let HasVLOp = 1; - let HasSEWOp = 1; -} - class VPseudoTernaryNoMaskWithPolicy<VReg RetClass, RegisterClass Op1Class, DAGOperand Op2Class, diff --git a/llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td b/llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td index f391300..5265613 100644 --- a/llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td +++ b/llvm/lib/Target/RISCV/RISCVInstrInfoXqci.td @@ -1120,27 +1120,11 @@ let Predicates = [HasVendorXqcisync, IsRV32] in { def QC_C_SYNCWF : QCIRVInst16CBSYNC<0b100, "qc.c.syncwf">; def QC_C_SYNCWL : QCIRVInst16CBSYNC<0b101, "qc.c.syncwl">; - let mayLoad = 0, mayStore = 0, hasSideEffects = 1 in - def QC_C_DELAY : RVInst16CI<0b000, 0b10, (outs), - (ins uimm5nonzero:$imm), - "qc.c.delay", "$imm"> { - let Inst{12} = 0; - let Inst{11-7} = 0; - let Inst{6-2} = imm{4-0}; - } + // qc.c.delay implemented as an alias, below } // Predicates = [HasVendorXqcisync, IsRV32] let Predicates = [HasVendorXqcisim, IsRV32] in { let mayLoad = 0, mayStore = 0, hasSideEffects = 1 in { - def QC_PSYSCALLI : RVInstI<0b010, OPC_OP_IMM, (outs), (ins uimm10:$imm10), - "qc.psyscalli", "$imm10"> { - bits<10> imm10; - - let rs1 = 0; - let rd = 0; - let imm12 = {0b00, imm10}; - } - def QC_PPUTCI : RVInstI<0b010, OPC_OP_IMM, (outs), (ins uimm8:$imm8), "qc.pputci", "$imm8"> { bits<8> imm8; @@ -1150,18 +1134,7 @@ let mayLoad = 0, mayStore = 0, hasSideEffects = 1 in { let imm12 = {0b0100, imm8}; } - def QC_PCOREDUMP : QCISim_NONE<0b0110, "qc.pcoredump">; - def QC_PPREGS : QCISim_NONE<0b0111, "qc.ppregs">; - def QC_PPREG : QCISim_RS1<0b1000, "qc.ppreg">; - def QC_PPUTC : QCISim_RS1<0b1001, "qc.pputc">; - def QC_PPUTS : QCISim_RS1<0b1010, "qc.pputs">; - def QC_PEXIT : QCISim_RS1<0b1011, "qc.pexit">; - def QC_PSYSCALL : QCISim_RS1<0b1100, "qc.psyscall">; - - def QC_C_PTRACE : RVInst16CI<0b000, 0b10, (outs), (ins), "qc.c.ptrace", ""> { - let rd = 0; - let imm = 0; - } + // The other instructions are all implemented as aliases, below } // mayLoad = 0, mayStore = 0, hasSideEffects = 1 } // Predicates = [HasVendorXqcisim, IsRV32] @@ -1218,6 +1191,27 @@ let EmitPriority = 0 in { } // EmitPriority = 0 } // Predicates = [HasVendorXqcilo, IsRV32] +let Predicates = [HasVendorXqcisim, IsRV32] in { +let EmitPriority = 1 in { + def : InstAlias<"qc.c.ptrace", (C_SLLI X0, 0)>; + + def : InstAlias<"qc.psyscalli $imm", (SLTI X0, X0, uimm10:$imm)>; + def : InstAlias<"qc.pcoredump", (SLTI X0, X0, 1536)>; + def : InstAlias<"qc.ppregs", (SLTI X0, X0, 1792)>; + def : InstAlias<"qc.ppreg $rs1", (SLTI X0, GPR:$rs1, -2048)>; + def : InstAlias<"qc.pputc $rs1", (SLTI X0, GPR:$rs1, -1792)>; + def : InstAlias<"qc.pputs $rs1", (SLTI X0, GPR:$rs1, -1536)>; + def : InstAlias<"qc.pexit $rs1", (SLTI X0, GPR:$rs1, -1280)>; + def : InstAlias<"qc.psyscall $rs1", (SLTI X0, GPR:$rs1, -1024)>; +} // EmitPriority = 1 +} // Predicates = [HasVendorXqcisim, IsRV32] + +let Predicates = [HasVendorXqcisync, IsRV32] in { +let EmitPriority = 1 in { + def : InstAlias<"qc.c.delay $imm", (C_SLLI X0, uimm5nonzero:$imm)>; +} +} // Predicates = [HasVendorXqcisync, IsRV32] + //===----------------------------------------------------------------------===// // Pseudo-instructions //===----------------------------------------------------------------------===// diff --git a/llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp b/llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp index 17e2f01..726920e 100644 --- a/llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp +++ b/llvm/lib/Target/RISCV/RISCVInterleavedAccess.cpp @@ -32,7 +32,7 @@ bool RISCVTargetLowering::isLegalInterleavedAccessType( if (!isTypeLegal(VT)) return false; - if (!isLegalLoadStoreElementTypeForRVV(VT.getScalarType()) || + if (!isLegalElementTypeForRVV(VT.getScalarType()) || !allowsMemoryAccessForAlignment(VTy->getContext(), DL, VT, AddrSpace, Alignment)) return false; @@ -266,33 +266,6 @@ bool RISCVTargetLowering::lowerInterleavedStore(Instruction *Store, if (!isLegalInterleavedAccessType(VTy, Factor, Alignment, AS, DL)) return false; - unsigned Index; - // If the segment store only has one active lane (i.e. the interleave is - // just a spread shuffle), we can use a strided store instead. This will - // be equally fast, and create less vector register pressure. - if (!Subtarget.hasOptimizedSegmentLoadStore(Factor) && - isSpreadMask(Mask, Factor, Index)) { - unsigned ScalarSizeInBytes = - DL.getTypeStoreSize(ShuffleVTy->getElementType()); - Value *Data = SVI->getOperand(0); - Data = Builder.CreateExtractVector(VTy, Data, uint64_t(0)); - Value *Stride = ConstantInt::get(XLenTy, Factor * ScalarSizeInBytes); - Value *Offset = ConstantInt::get(XLenTy, Index * ScalarSizeInBytes); - Value *BasePtr = Builder.CreatePtrAdd(Ptr, Offset); - // For rv64, need to truncate i64 to i32 to match signature. As VL is at - // most the number of active lanes (which is bounded by i32) this is safe. - VL = Builder.CreateTrunc(VL, Builder.getInt32Ty()); - - CallInst *CI = - Builder.CreateIntrinsic(Intrinsic::experimental_vp_strided_store, - {VTy, BasePtr->getType(), Stride->getType()}, - {Data, BasePtr, Stride, LaneMask, VL}); - Alignment = commonAlignment(Alignment, Index * ScalarSizeInBytes); - CI->addParamAttr(1, - Attribute::getWithAlignment(CI->getContext(), Alignment)); - return true; - } - Function *VssegNFunc = Intrinsic::getOrInsertDeclaration( Store->getModule(), FixedVssegIntrIds[Factor - 2], {VTy, PtrTy, XLenTy}); diff --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp index 5404123..7e58b6f 100644 --- a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp +++ b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp @@ -68,6 +68,9 @@ RISCVRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const { auto &Subtarget = MF->getSubtarget<RISCVSubtarget>(); if (MF->getFunction().getCallingConv() == CallingConv::GHC) return CSR_NoRegs_SaveList; + if (MF->getFunction().getCallingConv() == CallingConv::PreserveMost) + return Subtarget.hasStdExtE() ? CSR_RT_MostRegs_RVE_SaveList + : CSR_RT_MostRegs_SaveList; if (MF->getFunction().hasFnAttribute("interrupt")) { if (Subtarget.hasVInstructions()) { if (Subtarget.hasStdExtD()) @@ -573,6 +576,7 @@ bool RISCVRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, int64_t Val = Offset.getFixed(); int64_t Lo12 = SignExtend64<12>(Val); unsigned Opc = MI.getOpcode(); + if (Opc == RISCV::ADDI && !isInt<12>(Val)) { // We chose to emit the canonical immediate sequence rather than folding // the offset into the using add under the theory that doing so doesn't @@ -585,6 +589,9 @@ bool RISCVRegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, (Lo12 & 0b11111) != 0) { // Prefetch instructions require the offset to be 32 byte aligned. MI.getOperand(FIOperandNum + 1).ChangeToImmediate(0); + } else if (Opc == RISCV::MIPS_PREFETCH && !isUInt<9>(Val)) { + // MIPS Prefetch instructions require the offset to be 9 bits encoded. + MI.getOperand(FIOperandNum + 1).ChangeToImmediate(0); } else if ((Opc == RISCV::PseudoRV32ZdinxLD || Opc == RISCV::PseudoRV32ZdinxSD) && Lo12 >= 2044) { @@ -811,7 +818,13 @@ RISCVRegisterInfo::getCallPreservedMask(const MachineFunction & MF, if (CC == CallingConv::GHC) return CSR_NoRegs_RegMask; - switch (Subtarget.getTargetABI()) { + RISCVABI::ABI ABI = Subtarget.getTargetABI(); + if (CC == CallingConv::PreserveMost) { + if (ABI == RISCVABI::ABI_ILP32E || ABI == RISCVABI::ABI_LP64E) + return CSR_RT_MostRegs_RVE_RegMask; + return CSR_RT_MostRegs_RegMask; + } + switch (ABI) { default: llvm_unreachable("Unrecognized ABI"); case RISCVABI::ABI_ILP32E: diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp index fd634b5..0d5eb86 100644 --- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp +++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.cpp @@ -1191,9 +1191,6 @@ static const CostTblEntry VectorIntrinsicCostTable[]{ {Intrinsic::roundeven, MVT::f64, 9}, {Intrinsic::rint, MVT::f32, 7}, {Intrinsic::rint, MVT::f64, 7}, - {Intrinsic::lrint, MVT::i32, 1}, - {Intrinsic::lrint, MVT::i64, 1}, - {Intrinsic::llrint, MVT::i64, 1}, {Intrinsic::nearbyint, MVT::f32, 9}, {Intrinsic::nearbyint, MVT::f64, 9}, {Intrinsic::bswap, MVT::i16, 3}, @@ -1251,11 +1248,48 @@ RISCVTTIImpl::getIntrinsicInstrCost(const IntrinsicCostAttributes &ICA, switch (ICA.getID()) { case Intrinsic::lrint: case Intrinsic::llrint: - // We can't currently lower half or bfloat vector lrint/llrint. - if (auto *VecTy = dyn_cast<VectorType>(ICA.getArgTypes()[0]); - VecTy && VecTy->getElementType()->is16bitFPTy()) - return InstructionCost::getInvalid(); - [[fallthrough]]; + case Intrinsic::lround: + case Intrinsic::llround: { + auto LT = getTypeLegalizationCost(RetTy); + Type *SrcTy = ICA.getArgTypes().front(); + auto SrcLT = getTypeLegalizationCost(SrcTy); + if (ST->hasVInstructions() && LT.second.isVector()) { + SmallVector<unsigned, 2> Ops; + unsigned SrcEltSz = DL.getTypeSizeInBits(SrcTy->getScalarType()); + unsigned DstEltSz = DL.getTypeSizeInBits(RetTy->getScalarType()); + if (LT.second.getVectorElementType() == MVT::bf16) { + if (!ST->hasVInstructionsBF16Minimal()) + return InstructionCost::getInvalid(); + if (DstEltSz == 32) + Ops = {RISCV::VFWCVTBF16_F_F_V, RISCV::VFCVT_X_F_V}; + else + Ops = {RISCV::VFWCVTBF16_F_F_V, RISCV::VFWCVT_X_F_V}; + } else if (LT.second.getVectorElementType() == MVT::f16 && + !ST->hasVInstructionsF16()) { + if (!ST->hasVInstructionsF16Minimal()) + return InstructionCost::getInvalid(); + if (DstEltSz == 32) + Ops = {RISCV::VFWCVT_F_F_V, RISCV::VFCVT_X_F_V}; + else + Ops = {RISCV::VFWCVT_F_F_V, RISCV::VFWCVT_X_F_V}; + + } else if (SrcEltSz > DstEltSz) { + Ops = {RISCV::VFNCVT_X_F_W}; + } else if (SrcEltSz < DstEltSz) { + Ops = {RISCV::VFWCVT_X_F_V}; + } else { + Ops = {RISCV::VFCVT_X_F_V}; + } + + // We need to use the source LMUL in the case of a narrowing op, and the + // destination LMUL otherwise. + if (SrcEltSz > DstEltSz) + return SrcLT.first * + getRISCVInstructionCost(Ops, SrcLT.second, CostKind); + return LT.first * getRISCVInstructionCost(Ops, LT.second, CostKind); + } + break; + } case Intrinsic::ceil: case Intrinsic::floor: case Intrinsic::trunc: @@ -2593,18 +2627,17 @@ void RISCVTTIImpl::getUnrollingPreferences( if (L->getNumBlocks() > 4) return; - // Don't unroll vectorized loops, including the remainder loop - if (getBooleanLoopAttribute(L, "llvm.loop.isvectorized")) - return; - // Scan the loop: don't unroll loops with calls as this could prevent - // inlining. + // inlining. Don't unroll auto-vectorized loops either, though do allow + // unrolling of the scalar remainder. + bool IsVectorized = getBooleanLoopAttribute(L, "llvm.loop.isvectorized"); InstructionCost Cost = 0; for (auto *BB : L->getBlocks()) { for (auto &I : *BB) { - // Initial setting - Don't unroll loops containing vectorized - // instructions. - if (I.getType()->isVectorTy()) + // Both auto-vectorized loops and the scalar remainder have the + // isvectorized attribute, so differentiate between them by the presence + // of vector instructions. + if (IsVectorized && I.getType()->isVectorTy()) return; if (isa<CallInst>(I) || isa<InvokeInst>(I)) { diff --git a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h index f0510ec..d62d99c 100644 --- a/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h +++ b/llvm/lib/Target/RISCV/RISCVTargetTransformInfo.h @@ -265,7 +265,7 @@ public: if (!ST->enableUnalignedVectorMem() && Alignment < ElemType.getStoreSize()) return false; - return TLI->isLegalLoadStoreElementTypeForRVV(ElemType); + return TLI->isLegalElementTypeForRVV(ElemType); } bool isLegalMaskedLoad(Type *DataType, Align Alignment, @@ -297,7 +297,7 @@ public: if (!ST->enableUnalignedVectorMem() && Alignment < ElemType.getStoreSize()) return false; - return TLI->isLegalLoadStoreElementTypeForRVV(ElemType); + return TLI->isLegalElementTypeForRVV(ElemType); } bool isLegalMaskedGather(Type *DataType, Align Alignment) const override { diff --git a/llvm/lib/Target/RISCV/RISCVVectorPeephole.cpp b/llvm/lib/Target/RISCV/RISCVVectorPeephole.cpp index c1cc19b..050de3d 100644 --- a/llvm/lib/Target/RISCV/RISCVVectorPeephole.cpp +++ b/llvm/lib/Target/RISCV/RISCVVectorPeephole.cpp @@ -646,8 +646,7 @@ bool RISCVVectorPeephole::foldVMV_V_V(MachineInstr &MI) { if (!Src || Src->hasUnmodeledSideEffects() || Src->getParent() != MI.getParent() || !RISCVII::isFirstDefTiedToFirstUse(Src->getDesc()) || - !RISCVII::hasVLOp(Src->getDesc().TSFlags) || - !RISCVII::hasVecPolicyOp(Src->getDesc().TSFlags)) + !RISCVII::hasVLOp(Src->getDesc().TSFlags)) return false; // Src's dest needs to have the same EEW as MI's input. @@ -681,12 +680,14 @@ bool RISCVVectorPeephole::foldVMV_V_V(MachineInstr &MI) { *Src->getParent()->getParent())); } - // If MI was tail agnostic and the VL didn't increase, preserve it. - int64_t Policy = RISCVVType::TAIL_UNDISTURBED_MASK_UNDISTURBED; - if ((MI.getOperand(5).getImm() & RISCVVType::TAIL_AGNOSTIC) && - RISCV::isVLKnownLE(MI.getOperand(3), SrcVL)) - Policy |= RISCVVType::TAIL_AGNOSTIC; - Src->getOperand(RISCVII::getVecPolicyOpNum(Src->getDesc())).setImm(Policy); + if (RISCVII::hasVecPolicyOp(Src->getDesc().TSFlags)) { + // If MI was tail agnostic and the VL didn't increase, preserve it. + int64_t Policy = RISCVVType::TAIL_UNDISTURBED_MASK_UNDISTURBED; + if ((MI.getOperand(5).getImm() & RISCVVType::TAIL_AGNOSTIC) && + RISCV::isVLKnownLE(MI.getOperand(3), SrcVL)) + Policy |= RISCVVType::TAIL_AGNOSTIC; + Src->getOperand(RISCVII::getVecPolicyOpNum(Src->getDesc())).setImm(Policy); + } MRI->constrainRegClass(Src->getOperand(0).getReg(), MRI->getRegClass(MI.getOperand(0).getReg())); |