#include <CallingConvLower.h>
Detailed Description
CCState - This class holds information needed while lowering arguments and return values. It captures which registers are already assigned and which stack slots are used. It provides accessors to allocate these values.
Definition at line 172 of file CallingConvLower.h.
Constructor & Destructor Documentation
| CCState::CCState | ( | CallingConv::ID | CC, |
| bool | isVarArg, | ||
| MachineFunction & | MF, | ||
| SmallVectorImpl< CCValAssign > & | locs, | ||
| LLVMContext & | C | ||
| ) |
Definition at line 27 of file CallingConvLower.cpp.
References clearByValRegsInfo(), llvm::MCRegisterInfo::getNumRegs(), and llvm::SmallVectorImpl< T >::resize().
Member Function Documentation
| void llvm::CCState::addInRegsParamInfo | ( | unsigned | RegBegin, |
| unsigned | RegEnd | ||
| ) | [inline] |
Definition at line 427 of file CallingConvLower.h.
References llvm::SmallVectorTemplateBase< T, isPodLike >::push_back().
| void llvm::CCState::addLoc | ( | const CCValAssign & | V | ) | [inline] |
Definition at line 242 of file CallingConvLower.h.
References llvm::SmallVectorTemplateBase< T, isPodLike >::push_back().
Referenced by allocateStack(), AnalyzeArguments(), llvm::CC_ARM_AAPCS_Custom_HA(), CC_Hexagon(), CC_Hexagon32(), CC_Hexagon64(), CC_Hexagon_VarArg(), CC_MipsO32(), CC_Sparc64_Full(), CC_Sparc64_Half(), CC_Sparc_Assign_f64(), CC_Sparc_Assign_SRet(), llvm::f64AssignAAPCS(), llvm::f64AssignAPCS(), llvm::f64RetAssign(), HandleByVal(), RetCC_Hexagon32(), and RetCC_Hexagon64().
| unsigned llvm::CCState::AllocateReg | ( | unsigned | Reg | ) | [inline] |
AllocateReg - Attempt to allocate one register. If it is not available, return zero. Otherwise, return the register, marking it and any aliases as allocated.
Definition at line 307 of file CallingConvLower.h.
References isAllocated().
Referenced by AnalyzeArguments(), llvm::CC_ARM_AAPCS_Custom_HA(), CC_Hexagon32(), CC_Hexagon64(), CC_MipsO32(), llvm::CC_PPC32_SVR4_Custom_AlignArgRegs(), llvm::CC_PPC32_SVR4_Custom_AlignFPArgRegs(), CC_Sparc_Assign_f64(), llvm::f64AssignAAPCS(), llvm::f64AssignAPCS(), llvm::f64RetAssign(), RetCC_Hexagon32(), and RetCC_Hexagon64().
| unsigned llvm::CCState::AllocateReg | ( | unsigned | Reg, |
| unsigned | ShadowReg | ||
| ) | [inline] |
Version of AllocateReg with extra register to be shadowed.
Definition at line 314 of file CallingConvLower.h.
References isAllocated().
| unsigned llvm::CCState::AllocateReg | ( | const MCPhysReg * | Regs, |
| unsigned | NumRegs | ||
| ) | [inline] |
AllocateReg - Attempt to allocate one of the specified registers. If none are available, return zero. Otherwise, return the first one available, marking it and any aliases as allocated.
Definition at line 324 of file CallingConvLower.h.
References getFirstUnallocated().
| unsigned llvm::CCState::AllocateReg | ( | const MCPhysReg * | Regs, |
| const MCPhysReg * | ShadowRegs, | ||
| unsigned | NumRegs | ||
| ) | [inline] |
Version of AllocateReg with list of registers to be shadowed.
Definition at line 361 of file CallingConvLower.h.
References getFirstUnallocated().
| unsigned llvm::CCState::AllocateRegBlock | ( | const uint16_t * | Regs, |
| unsigned | NumRegs, | ||
| unsigned | RegsRequired | ||
| ) | [inline] |
AllocateRegBlock - Attempt to allocate a block of RegsRequired consecutive registers. If this is not possible, return zero. Otherwise, return the first register of the block that were allocated, marking the entire block as allocated.
Definition at line 338 of file CallingConvLower.h.
References isAllocated().
Referenced by llvm::CC_ARM_AAPCS_Custom_HA().
| unsigned llvm::CCState::AllocateStack | ( | unsigned | Size, |
| unsigned | Align | ||
| ) | [inline] |
AllocateStack - Allocate a chunk of stack space with the specified size and alignment.
Definition at line 376 of file CallingConvLower.h.
References llvm::MachineFrameInfo::ensureMaxAlignment(), and llvm::MachineFunction::getFrameInfo().
Referenced by allocateStack(), AllocateStack(), llvm::CC_ARM_AAPCS_Custom_HA(), CC_Hexagon(), CC_Hexagon32(), CC_Hexagon64(), CC_Hexagon_VarArg(), CC_MipsO32(), CC_Sparc64_Full(), CC_Sparc64_Half(), CC_Sparc_Assign_f64(), llvm::f64AssignAAPCS(), llvm::f64AssignAPCS(), HandleByVal(), llvm::MipsTargetLowering::MipsCC::MipsCC(), RetCC_Hexagon32(), and RetCC_Hexagon64().
| unsigned llvm::CCState::AllocateStack | ( | unsigned | Size, |
| unsigned | Align, | ||
| unsigned | ShadowReg | ||
| ) | [inline] |
Version of AllocateStack with extra register to be shadowed.
Definition at line 386 of file CallingConvLower.h.
References AllocateStack().
| unsigned llvm::CCState::AllocateStack | ( | unsigned | Size, |
| unsigned | Align, | ||
| const MCPhysReg * | ShadowRegs, | ||
| unsigned | NumShadowRegs | ||
| ) | [inline] |
Version of AllocateStack with list of extra registers to be shadowed. Note that, unlike AllocateReg, this shadows ALL of the shadow registers.
Definition at line 393 of file CallingConvLower.h.
References AllocateStack().
| void CCState::AnalyzeCallOperands | ( | const SmallVectorImpl< ISD::OutputArg > & | Outs, |
| CCAssignFn | Fn | ||
| ) |
AnalyzeCallOperands - Analyze the outgoing arguments to a call, incorporating info about the passed values into this state.
Definition at line 119 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm_unreachable, and llvm::SmallVectorTemplateCommon< T, typename >::size().
Referenced by AnalyzeVarArgs(), llvm::SystemZTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), and llvm::SparcTargetLowering::LowerCall_64().
| void CCState::AnalyzeCallOperands | ( | SmallVectorImpl< MVT > & | ArgVTs, |
| SmallVectorImpl< ISD::ArgFlagsTy > & | Flags, | ||
| CCAssignFn | Fn | ||
| ) |
AnalyzeCallOperands - Same as above except it takes vectors of types and argument flags.
Definition at line 137 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm_unreachable, and llvm::SmallVectorTemplateCommon< T >::size().
| void CCState::AnalyzeCallResult | ( | const SmallVectorImpl< ISD::InputArg > & | Ins, |
| CCAssignFn | Fn | ||
| ) |
AnalyzeCallResult - Analyze the return values of a call, incorporating info about the passed values into this state.
Definition at line 156 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm_unreachable, and llvm::SmallVectorTemplateCommon< T, typename >::size().
Referenced by AnalyzeRetResult(), llvm::SystemZTargetLowering::LowerCall(), llvm::SparcTargetLowering::LowerCall_32(), and llvm::HexagonTargetLowering::LowerCallResult().
| void CCState::AnalyzeCallResult | ( | MVT | VT, |
| CCAssignFn | Fn | ||
| ) |
AnalyzeCallResult - Same as above except it's specialized for calls which produce a single value.
Definition at line 173 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), and llvm_unreachable.
| void CCState::AnalyzeFormalArguments | ( | const SmallVectorImpl< ISD::InputArg > & | Ins, |
| CCAssignFn | Fn | ||
| ) |
AnalyzeFormalArguments - Analyze an array of argument values, incorporating info about the formals into this state.
Definition at line 68 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm_unreachable, and llvm::SmallVectorTemplateCommon< T, typename >::size().
Referenced by llvm::AMDGPUTargetLowering::AnalyzeFormalArguments(), AnalyzeVarArgs(), llvm::HexagonTargetLowering::LowerFormalArguments(), llvm::SystemZTargetLowering::LowerFormalArguments(), llvm::SparcTargetLowering::LowerFormalArguments_32(), and llvm::SparcTargetLowering::LowerFormalArguments_64().
| void CCState::AnalyzeReturn | ( | const SmallVectorImpl< ISD::OutputArg > & | Outs, |
| CCAssignFn | Fn | ||
| ) |
AnalyzeReturn - Analyze the returned values of a return, incorporating info about the result values into this state.
Definition at line 101 of file CallingConvLower.cpp.
References llvm::dbgs(), llvm::CCValAssign::Full, llvm::EVT::getEVTString(), llvm_unreachable, and llvm::SmallVectorTemplateCommon< T, typename >::size().
Referenced by AnalyzeRetResult(), llvm::HexagonTargetLowering::LowerReturn(), llvm::SystemZTargetLowering::LowerReturn(), llvm::SparcTargetLowering::LowerReturn_32(), and llvm::SparcTargetLowering::LowerReturn_64().
| bool CCState::CheckReturn | ( | const SmallVectorImpl< ISD::OutputArg > & | Outs, |
| CCAssignFn | Fn | ||
| ) |
CheckReturn - Analyze the return values of a function, returning true if the return can be performed without sret-demotion, and false otherwise.
Definition at line 87 of file CallingConvLower.cpp.
References llvm::CCValAssign::Full, and llvm::SmallVectorTemplateCommon< T, typename >::size().
| void llvm::CCState::clearByValRegsInfo | ( | ) | [inline] |
Definition at line 442 of file CallingConvLower.h.
References llvm::SmallVectorImpl< T >::clear().
Referenced by CCState().
| CallingConv::ID llvm::CCState::getCallingConv | ( | ) | const [inline] |
Definition at line 248 of file CallingConvLower.h.
| ParmContext llvm::CCState::getCallOrPrologue | ( | ) | const [inline] |
Definition at line 452 of file CallingConvLower.h.
References CallOrPrologue.
| LLVMContext& llvm::CCState::getContext | ( | ) | const [inline] |
Definition at line 246 of file CallingConvLower.h.
| unsigned llvm::CCState::getFirstUnallocated | ( | const MCPhysReg * | Regs, |
| unsigned | NumRegs | ||
| ) | const [inline] |
getFirstUnallocated - Return the first unallocated register in the set, or NumRegs if they are all allocated.
Definition at line 297 of file CallingConvLower.h.
References isAllocated().
Referenced by AllocateReg(), CC_MipsO32(), llvm::CC_PPC32_SVR4_Custom_AlignArgRegs(), and llvm::CC_PPC32_SVR4_Custom_AlignFPArgRegs().
| void llvm::CCState::getInRegsParamInfo | ( | unsigned | InRegsParamRecordIndex, |
| unsigned & | BeginReg, | ||
| unsigned & | EndReg | ||
| ) | const [inline] |
Definition at line 416 of file CallingConvLower.h.
References info, and llvm::SmallVectorTemplateCommon< T, typename >::size().
| unsigned llvm::CCState::getInRegsParamsCount | ( | ) | const [inline] |
Definition at line 409 of file CallingConvLower.h.
References llvm::SmallVectorTemplateCommon< T, typename >::size().
| unsigned llvm::CCState::getInRegsParamsProceed | ( | ) | const [inline] |
Definition at line 412 of file CallingConvLower.h.
| MachineFunction& llvm::CCState::getMachineFunction | ( | ) | const [inline] |
Definition at line 247 of file CallingConvLower.h.
| unsigned llvm::CCState::getNextStackOffset | ( | ) | const [inline] |
Definition at line 251 of file CallingConvLower.h.
| SmallVectorImpl<llvm::CCValAssign>& llvm::CCState::getPendingLocs | ( | ) | [inline] |
Definition at line 455 of file CallingConvLower.h.
Referenced by llvm::CC_ARM_AAPCS_Custom_HA().
| void CCState::HandleByVal | ( | unsigned | ValNo, |
| MVT | ValVT, | ||
| MVT | LocVT, | ||
| CCValAssign::LocInfo | LocInfo, | ||
| int | MinSize, | ||
| int | MinAlign, | ||
| ISD::ArgFlagsTy | ArgFlags | ||
| ) |
Definition at line 42 of file CallingConvLower.cpp.
References addLoc(), Align(), AllocateStack(), llvm::MachineFrameInfo::ensureMaxAlignment(), llvm::ISD::ArgFlagsTy::getByValAlign(), llvm::ISD::ArgFlagsTy::getByValSize(), llvm::MachineFunction::getFrameInfo(), llvm::CCValAssign::getMem(), llvm::MachineFunction::getSubtarget(), llvm::TargetSubtargetInfo::getTargetLowering(), llvm::TargetLowering::HandleByVal(), llvm::MinAlign(), and llvm::RoundUpToAlignment().
Referenced by AnalyzeArguments().
| bool llvm::CCState::isAllocated | ( | unsigned | Reg | ) | const [inline] |
isAllocated - Return true if the specified register (or an alias) is allocated.
Definition at line 255 of file CallingConvLower.h.
Referenced by AllocateReg(), AllocateRegBlock(), and getFirstUnallocated().
| bool llvm::CCState::isVarArg | ( | ) | const [inline] |
Definition at line 249 of file CallingConvLower.h.
Referenced by AnalyzeArguments(), and CC_MipsO32().
| bool llvm::CCState::nextInRegsParam | ( | ) | [inline] |
Definition at line 434 of file CallingConvLower.h.
References llvm::SmallVectorTemplateCommon< T, typename >::size().
| void llvm::CCState::rewindByValRegsInfo | ( | ) | [inline] |
Definition at line 448 of file CallingConvLower.h.
Member Data Documentation
ParmContext llvm::CCState::CallOrPrologue [protected] |
Definition at line 236 of file CallingConvLower.h.
Referenced by getCallOrPrologue().
The documentation for this class was generated from the following files:
1.7.6.1