diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86CallLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86CallLowering.cpp | 53 |
1 files changed, 34 insertions, 19 deletions
diff --git a/llvm/lib/Target/X86/X86CallLowering.cpp b/llvm/lib/Target/X86/X86CallLowering.cpp index 9d1d24f3349..2d18aeca3af 100644 --- a/llvm/lib/Target/X86/X86CallLowering.cpp +++ b/llvm/lib/Target/X86/X86CallLowering.cpp @@ -1,4 +1,4 @@ -//===-- llvm/lib/Target/X86/X86CallLowering.cpp - Call lowering -----------===// +//===- llvm/lib/Target/X86/X86CallLowering.cpp - Call lowering ------------===// // // The LLVM Compiler Infrastructure // @@ -6,25 +6,45 @@ // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// -/// +// /// \file /// This file implements the lowering of LLVM calls to machine code calls for /// GlobalISel. -/// +// //===----------------------------------------------------------------------===// #include "X86CallLowering.h" #include "X86CallingConv.h" #include "X86ISelLowering.h" #include "X86InstrInfo.h" -#include "X86TargetMachine.h" - +#include "X86RegisterInfo.h" +#include "X86Subtarget.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/SmallVector.h" #include "llvm/CodeGen/Analysis.h" +#include "llvm/CodeGen/CallingConvLower.h" #include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h" #include "llvm/CodeGen/GlobalISel/Utils.h" +#include "llvm/CodeGen/LowLevelType.h" +#include "llvm/CodeGen/MachineBasicBlock.h" +#include "llvm/CodeGen/MachineFrameInfo.h" +#include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/CodeGen/MachineMemOperand.h" +#include "llvm/CodeGen/MachineOperand.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/MachineValueType.h" +#include "llvm/CodeGen/ValueTypes.h" +#include "llvm/IR/Attributes.h" +#include "llvm/IR/DataLayout.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/Value.h" +#include "llvm/MC/MCRegisterInfo.h" +#include "llvm/Support/LowLevelTypeImpl.h" +#include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetSubtargetInfo.h" +#include <cassert> +#include <cstdint> using namespace llvm; @@ -38,7 +58,6 @@ bool X86CallLowering::splitToValueTypes(const ArgInfo &OrigArg, const DataLayout &DL, MachineRegisterInfo &MRI, SplitArgTy PerformArgSplit) const { - const X86TargetLowering &TLI = *getTLI<X86TargetLowering>(); LLVMContext &Context = OrigArg.Ty->getContext(); @@ -79,16 +98,16 @@ bool X86CallLowering::splitToValueTypes(const ArgInfo &OrigArg, } namespace { + struct OutgoingValueHandler : public CallLowering::ValueHandler { OutgoingValueHandler(MachineIRBuilder &MIRBuilder, MachineRegisterInfo &MRI, MachineInstrBuilder &MIB, CCAssignFn *AssignFn) - : ValueHandler(MIRBuilder, MRI, AssignFn), MIB(MIB), StackSize(0), + : ValueHandler(MIRBuilder, MRI, AssignFn), MIB(MIB), DL(MIRBuilder.getMF().getDataLayout()), - STI(MIRBuilder.getMF().getSubtarget<X86Subtarget>()), NumXMMRegs(0) {} + STI(MIRBuilder.getMF().getSubtarget<X86Subtarget>()) {} unsigned getStackAddress(uint64_t Size, int64_t Offset, MachinePointerInfo &MPO) override { - LLT p0 = LLT::pointer(0, DL.getPointerSizeInBits(0)); LLT SType = LLT::scalar(DL.getPointerSizeInBits(0)); unsigned SPReg = MRI.createGenericVirtualRegister(p0); @@ -113,7 +132,6 @@ struct OutgoingValueHandler : public CallLowering::ValueHandler { void assignValueToAddress(unsigned ValVReg, unsigned Addr, uint64_t Size, MachinePointerInfo &MPO, CCValAssign &VA) override { - unsigned ExtReg = extendRegister(ValVReg, VA); auto MMO = MIRBuilder.getMF().getMachineMemOperand( MPO, MachineMemOperand::MOStore, VA.getLocVT().getStoreSize(), @@ -124,7 +142,6 @@ struct OutgoingValueHandler : public CallLowering::ValueHandler { bool assignArg(unsigned ValNo, MVT ValVT, MVT LocVT, CCValAssign::LocInfo LocInfo, const CallLowering::ArgInfo &Info, CCState &State) override { - bool Res = AssignFn(ValNo, ValVT, LocVT, LocInfo, Info.Flags, State); StackSize = State.getNextStackOffset(); @@ -142,16 +159,16 @@ struct OutgoingValueHandler : public CallLowering::ValueHandler { protected: MachineInstrBuilder &MIB; - uint64_t StackSize; + uint64_t StackSize = 0; const DataLayout &DL; const X86Subtarget &STI; - unsigned NumXMMRegs; + unsigned NumXMMRegs = 0; }; -} // End anonymous namespace. + +} // end anonymous namespace bool X86CallLowering::lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val, unsigned VReg) const { - assert(((Val && VReg) || (!Val && !VReg)) && "Return value without a vreg"); auto MIB = MIRBuilder.buildInstrNoInsert(X86::RET).addImm(0); @@ -182,6 +199,7 @@ bool X86CallLowering::lowerReturn(MachineIRBuilder &MIRBuilder, } namespace { + struct IncomingValueHandler : public CallLowering::ValueHandler { IncomingValueHandler(MachineIRBuilder &MIRBuilder, MachineRegisterInfo &MRI, CCAssignFn *AssignFn) @@ -190,7 +208,6 @@ struct IncomingValueHandler : public CallLowering::ValueHandler { unsigned getStackAddress(uint64_t Size, int64_t Offset, MachinePointerInfo &MPO) override { - auto &MFI = MIRBuilder.getMF().getFrameInfo(); int FI = MFI.CreateFixedObject(Size, Offset, true); MPO = MachinePointerInfo::getFixedStack(MIRBuilder.getMF(), FI); @@ -203,7 +220,6 @@ struct IncomingValueHandler : public CallLowering::ValueHandler { void assignValueToAddress(unsigned ValVReg, unsigned Addr, uint64_t Size, MachinePointerInfo &MPO, CCValAssign &VA) override { - auto MMO = MIRBuilder.getMF().getMachineMemOperand( MPO, MachineMemOperand::MOLoad | MachineMemOperand::MOInvariant, Size, 0); @@ -241,7 +257,7 @@ protected: MachineInstrBuilder &MIB; }; -} // namespace +} // end anonymous namespace bool X86CallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F, @@ -299,7 +315,6 @@ bool X86CallLowering::lowerCall(MachineIRBuilder &MIRBuilder, const MachineOperand &Callee, const ArgInfo &OrigRet, ArrayRef<ArgInfo> OrigArgs) const { - MachineFunction &MF = MIRBuilder.getMF(); const Function &F = *MF.getFunction(); MachineRegisterInfo &MRI = MF.getRegInfo(); |
