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Diffstat (limited to 'lib/Target/Hexagon/HexagonCallingConvLower.cpp')
| -rw-r--r-- | lib/Target/Hexagon/HexagonCallingConvLower.cpp | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/lib/Target/Hexagon/HexagonCallingConvLower.cpp b/lib/Target/Hexagon/HexagonCallingConvLower.cpp deleted file mode 100644 index 8d78409..0000000 --- a/lib/Target/Hexagon/HexagonCallingConvLower.cpp +++ /dev/null @@ -1,206 +0,0 @@ -//===-- llvm/CallingConvLower.cpp - Calling Convention lowering -----------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements the Hexagon_CCState class, used for lowering and -// implementing calling conventions. Adapted from the machine independent -// version of the class (CCState) but this handles calls to varargs functions -// -//===----------------------------------------------------------------------===// - -#include "HexagonCallingConvLower.h" -#include "Hexagon.h" -#include "llvm/IR/DataLayout.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/ErrorHandling.h" -#include "llvm/Support/raw_ostream.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Target/TargetRegisterInfo.h" -#include "llvm/Target/TargetSubtargetInfo.h" -using namespace llvm; - -Hexagon_CCState::Hexagon_CCState(CallingConv::ID CC, bool isVarArg, - const TargetMachine &tm, - SmallVectorImpl<CCValAssign> &locs, - LLVMContext &c) - : CallingConv(CC), IsVarArg(isVarArg), TM(tm), Locs(locs), Context(c) { - // No stack is used. - StackOffset = 0; - - UsedRegs.resize( - (TM.getSubtargetImpl()->getRegisterInfo()->getNumRegs() + 31) / 32); -} - -// HandleByVal - Allocate a stack slot large enough to pass an argument by -// value. The size and alignment information of the argument is encoded in its -// parameter attribute. -void Hexagon_CCState::HandleByVal(unsigned ValNo, EVT ValVT, - EVT LocVT, CCValAssign::LocInfo LocInfo, - int MinSize, int MinAlign, - ISD::ArgFlagsTy ArgFlags) { - unsigned Align = ArgFlags.getByValAlign(); - unsigned Size = ArgFlags.getByValSize(); - if (MinSize > (int)Size) - Size = MinSize; - if (MinAlign > (int)Align) - Align = MinAlign; - unsigned Offset = AllocateStack(Size, Align); - - addLoc(CCValAssign::getMem(ValNo, ValVT.getSimpleVT(), Offset, - LocVT.getSimpleVT(), LocInfo)); -} - -/// MarkAllocated - Mark a register and all of its aliases as allocated. -void Hexagon_CCState::MarkAllocated(unsigned Reg) { - const TargetRegisterInfo &TRI = *TM.getSubtargetImpl()->getRegisterInfo(); - for (MCRegAliasIterator AI(Reg, &TRI, true); AI.isValid(); ++AI) - UsedRegs[*AI/32] |= 1 << (*AI&31); -} - -/// AnalyzeFormalArguments - Analyze an ISD::FORMAL_ARGUMENTS node, -/// incorporating info about the formals into this state. -void -Hexagon_CCState::AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> - &Ins, - Hexagon_CCAssignFn Fn, - unsigned SretValueInRegs) { - unsigned NumArgs = Ins.size(); - unsigned i = 0; - - // If the function returns a small struct in registers, skip - // over the first (dummy) argument. - if (SretValueInRegs != 0) { - ++i; - } - - - for (; i != NumArgs; ++i) { - EVT ArgVT = Ins[i].VT; - ISD::ArgFlagsTy ArgFlags = Ins[i].Flags; - if (Fn(i, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, *this, 0, 0, false)) { - dbgs() << "Formal argument #" << i << " has unhandled type " - << ArgVT.getEVTString() << "\n"; - abort(); - } - } -} - -/// AnalyzeReturn - Analyze the returned values of an ISD::RET node, -/// incorporating info about the result values into this state. -void -Hexagon_CCState::AnalyzeReturn(const SmallVectorImpl<ISD::OutputArg> &Outs, - Hexagon_CCAssignFn Fn, - unsigned SretValueInRegs) { - - // For Hexagon, Return small structures in registers. - if (SretValueInRegs != 0) { - if (SretValueInRegs <= 32) { - unsigned Reg = Hexagon::R0; - addLoc(CCValAssign::getReg(0, MVT::i32, Reg, MVT::i32, - CCValAssign::Full)); - return; - } - if (SretValueInRegs <= 64) { - unsigned Reg = Hexagon::D0; - addLoc(CCValAssign::getReg(0, MVT::i64, Reg, MVT::i64, - CCValAssign::Full)); - return; - } - } - - - // Determine which register each value should be copied into. - for (unsigned i = 0, e = Outs.size(); i != e; ++i) { - EVT VT = Outs[i].VT; - ISD::ArgFlagsTy ArgFlags = Outs[i].Flags; - if (Fn(i, VT, VT, CCValAssign::Full, ArgFlags, *this, -1, -1, false)){ - dbgs() << "Return operand #" << i << " has unhandled type " - << VT.getEVTString() << "\n"; - abort(); - } - } -} - - -/// AnalyzeCallOperands - Analyze an ISD::CALL node, incorporating info -/// about the passed values into this state. -void -Hexagon_CCState::AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> - &Outs, - Hexagon_CCAssignFn Fn, - int NonVarArgsParams, - unsigned SretValueSize) { - unsigned NumOps = Outs.size(); - - unsigned i = 0; - // If the called function returns a small struct in registers, skip - // the first actual parameter. We do not want to pass a pointer to - // the stack location. - if (SretValueSize != 0) { - ++i; - } - - for (; i != NumOps; ++i) { - EVT ArgVT = Outs[i].VT; - ISD::ArgFlagsTy ArgFlags = Outs[i].Flags; - if (Fn(i, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, *this, - NonVarArgsParams, i+1, false)) { - dbgs() << "Call operand #" << i << " has unhandled type " - << ArgVT.getEVTString() << "\n"; - abort(); - } - } -} - -/// AnalyzeCallOperands - Same as above except it takes vectors of types -/// and argument flags. -void -Hexagon_CCState::AnalyzeCallOperands(SmallVectorImpl<EVT> &ArgVTs, - SmallVectorImpl<ISD::ArgFlagsTy> &Flags, - Hexagon_CCAssignFn Fn) { - unsigned NumOps = ArgVTs.size(); - for (unsigned i = 0; i != NumOps; ++i) { - EVT ArgVT = ArgVTs[i]; - ISD::ArgFlagsTy ArgFlags = Flags[i]; - if (Fn(i, ArgVT, ArgVT, CCValAssign::Full, ArgFlags, *this, -1, -1, - false)) { - dbgs() << "Call operand #" << i << " has unhandled type " - << ArgVT.getEVTString() << "\n"; - abort(); - } - } -} - -/// AnalyzeCallResult - Analyze the return values of an ISD::CALL node, -/// incorporating info about the passed values into this state. -void -Hexagon_CCState::AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins, - Hexagon_CCAssignFn Fn, - unsigned SretValueInRegs) { - - for (unsigned i = 0, e = Ins.size(); i != e; ++i) { - EVT VT = Ins[i].VT; - ISD::ArgFlagsTy Flags = ISD::ArgFlagsTy(); - if (Fn(i, VT, VT, CCValAssign::Full, Flags, *this, -1, -1, false)) { - dbgs() << "Call result #" << i << " has unhandled type " - << VT.getEVTString() << "\n"; - abort(); - } - } -} - -/// AnalyzeCallResult - Same as above except it's specialized for calls which -/// produce a single value. -void Hexagon_CCState::AnalyzeCallResult(EVT VT, Hexagon_CCAssignFn Fn) { - if (Fn(0, VT, VT, CCValAssign::Full, ISD::ArgFlagsTy(), *this, -1, -1, - false)) { - dbgs() << "Call result has unhandled type " - << VT.getEVTString() << "\n"; - abort(); - } -} |