diff options
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp')
-rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp | 101 |
1 files changed, 16 insertions, 85 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp index eb34eaafd16..575f4bd22b4 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp @@ -22,7 +22,6 @@ #include "llvm/Analysis/ConstantFolding.h" #include "llvm/Analysis/TargetLibraryInfo.h" #include "llvm/Analysis/ValueTracking.h" -#include "llvm/CodeGen/Analysis.h" #include "llvm/CodeGen/FastISel.h" #include "llvm/CodeGen/FunctionLoweringInfo.h" #include "llvm/CodeGen/GCMetadata.h" @@ -578,93 +577,25 @@ static void getCopyToPartsVector(SelectionDAG &DAG, SDLoc DL, } } -namespace { - /// RegsForValue - This struct represents the registers (physical or virtual) - /// that a particular set of values is assigned, and the type information - /// about the value. The most common situation is to represent one value at a - /// time, but struct or array values are handled element-wise as multiple - /// values. The splitting of aggregates is performed recursively, so that we - /// never have aggregate-typed registers. The values at this point do not - /// necessarily have legal types, so each value may require one or more - /// registers of some legal type. - /// - struct RegsForValue { - /// ValueVTs - The value types of the values, which may not be legal, and - /// may need be promoted or synthesized from one or more registers. - /// - SmallVector<EVT, 4> ValueVTs; +RegsForValue::RegsForValue() {} - /// RegVTs - The value types of the registers. This is the same size as - /// ValueVTs and it records, for each value, what the type of the assigned - /// register or registers are. (Individual values are never synthesized - /// from more than one type of register.) - /// - /// With virtual registers, the contents of RegVTs is redundant with TLI's - /// getRegisterType member function, however when with physical registers - /// it is necessary to have a separate record of the types. - /// - SmallVector<MVT, 4> RegVTs; - - /// Regs - This list holds the registers assigned to the values. - /// Each legal or promoted value requires one register, and each - /// expanded value requires multiple registers. - /// - SmallVector<unsigned, 4> Regs; - - RegsForValue() {} - - RegsForValue(const SmallVector<unsigned, 4> ®s, - MVT regvt, EVT valuevt) - : ValueVTs(1, valuevt), RegVTs(1, regvt), Regs(regs) {} - - RegsForValue(LLVMContext &Context, const TargetLowering &tli, - unsigned Reg, Type *Ty) { - ComputeValueVTs(tli, Ty, ValueVTs); - - for (unsigned Value = 0, e = ValueVTs.size(); Value != e; ++Value) { - EVT ValueVT = ValueVTs[Value]; - unsigned NumRegs = tli.getNumRegisters(Context, ValueVT); - MVT RegisterVT = tli.getRegisterType(Context, ValueVT); - for (unsigned i = 0; i != NumRegs; ++i) - Regs.push_back(Reg + i); - RegVTs.push_back(RegisterVT); - Reg += NumRegs; - } - } +RegsForValue::RegsForValue(const SmallVector<unsigned, 4> ®s, MVT regvt, + EVT valuevt) + : ValueVTs(1, valuevt), RegVTs(1, regvt), Regs(regs) {} - /// append - Add the specified values to this one. - void append(const RegsForValue &RHS) { - ValueVTs.append(RHS.ValueVTs.begin(), RHS.ValueVTs.end()); - RegVTs.append(RHS.RegVTs.begin(), RHS.RegVTs.end()); - Regs.append(RHS.Regs.begin(), RHS.Regs.end()); - } +RegsForValue::RegsForValue(LLVMContext &Context, const TargetLowering &tli, + unsigned Reg, Type *Ty) { + ComputeValueVTs(tli, Ty, ValueVTs); - /// getCopyFromRegs - Emit a series of CopyFromReg nodes that copies from - /// this value and returns the result as a ValueVTs value. This uses - /// Chain/Flag as the input and updates them for the output Chain/Flag. - /// If the Flag pointer is NULL, no flag is used. - SDValue getCopyFromRegs(SelectionDAG &DAG, FunctionLoweringInfo &FuncInfo, - SDLoc dl, - SDValue &Chain, SDValue *Flag, - const Value *V = nullptr) const; - - /// getCopyToRegs - Emit a series of CopyToReg nodes that copies the - /// specified value into the registers specified by this object. This uses - /// Chain/Flag as the input and updates them for the output Chain/Flag. - /// If the Flag pointer is NULL, no flag is used. - void - getCopyToRegs(SDValue Val, SelectionDAG &DAG, SDLoc dl, SDValue &Chain, - SDValue *Flag, const Value *V, - ISD::NodeType PreferredExtendType = ISD::ANY_EXTEND) const; - - /// AddInlineAsmOperands - Add this value to the specified inlineasm node - /// operand list. This adds the code marker, matching input operand index - /// (if applicable), and includes the number of values added into it. - void AddInlineAsmOperands(unsigned Kind, - bool HasMatching, unsigned MatchingIdx, SDLoc dl, - SelectionDAG &DAG, - std::vector<SDValue> &Ops) const; - }; + for (unsigned Value = 0, e = ValueVTs.size(); Value != e; ++Value) { + EVT ValueVT = ValueVTs[Value]; + unsigned NumRegs = tli.getNumRegisters(Context, ValueVT); + MVT RegisterVT = tli.getRegisterType(Context, ValueVT); + for (unsigned i = 0; i != NumRegs; ++i) + Regs.push_back(Reg + i); + RegVTs.push_back(RegisterVT); + Reg += NumRegs; + } } /// getCopyFromRegs - Emit a series of CopyFromReg nodes that copies from |