LLVM 22.0.0git
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#include "Target/SystemZ/SystemZSelectionDAGInfo.h"
Public Member Functions | |
SystemZSelectionDAGInfo ()=default | |
bool | isTargetMemoryOpcode (unsigned Opcode) const override |
Returns true if a node with the given target-specific opcode has a memory operand. | |
bool | isTargetStrictFPOpcode (unsigned Opcode) const override |
Returns true if a node with the given target-specific opcode has strict floating-point semantics. | |
SDValue | EmitTargetCodeForMemcpy (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, Align Alignment, bool IsVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const override |
Emit target-specific code that performs a memcpy. | |
SDValue | EmitTargetCodeForMemset (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dst, SDValue Byte, SDValue Size, Align Alignment, bool IsVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo) const override |
Emit target-specific code that performs a memset. | |
std::pair< SDValue, SDValue > | EmitTargetCodeForMemcmp (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src1, SDValue Src2, SDValue Size, const CallInst *CI) const override |
Emit target-specific code that performs a memcmp/bcmp, in cases where that is faster than a libcall. | |
std::pair< SDValue, SDValue > | EmitTargetCodeForMemchr (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src, SDValue Char, SDValue Length, MachinePointerInfo SrcPtrInfo) const override |
Emit target-specific code that performs a memchr, in cases where that is faster than a libcall. | |
std::pair< SDValue, SDValue > | EmitTargetCodeForStrcpy (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Dest, SDValue Src, MachinePointerInfo DestPtrInfo, MachinePointerInfo SrcPtrInfo, bool isStpcpy) const override |
Emit target-specific code that performs a strcpy or stpcpy, in cases where that is faster than a libcall. | |
std::pair< SDValue, SDValue > | EmitTargetCodeForStrcmp (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src1, SDValue Src2, MachinePointerInfo Op1PtrInfo, MachinePointerInfo Op2PtrInfo) const override |
Emit target-specific code that performs a strcmp, in cases where that is faster than a libcall. | |
std::pair< SDValue, SDValue > | EmitTargetCodeForStrlen (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src, const CallInst *CI) const override |
std::pair< SDValue, SDValue > | EmitTargetCodeForStrnlen (SelectionDAG &DAG, const SDLoc &DL, SDValue Chain, SDValue Src, SDValue MaxLength, MachinePointerInfo SrcPtrInfo) const override |
Public Member Functions inherited from llvm::SelectionDAGTargetInfo | |
SelectionDAGTargetInfo ()=default | |
SelectionDAGTargetInfo (const SelectionDAGTargetInfo &)=delete | |
SelectionDAGTargetInfo & | operator= (const SelectionDAGTargetInfo &)=delete |
virtual | ~SelectionDAGTargetInfo () |
virtual const char * | getTargetNodeName (unsigned Opcode) const |
Returns the name of the given target-specific opcode, suitable for debug printing. | |
virtual bool | mayRaiseFPException (unsigned Opcode) const |
Returns true if a node with the given target-specific opcode may raise a floating-point exception. | |
virtual void | verifyTargetNode (const SelectionDAG &DAG, const SDNode *N) const |
Checks that the given target-specific node is valid. Aborts if it is not. | |
virtual SDValue | EmitTargetCodeForMemmove (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Op1, SDValue Op2, SDValue Op3, Align Alignment, bool isVolatile, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const |
Emit target-specific code that performs a memmove. | |
virtual SDValue | EmitTargetCodeForSetTag (SelectionDAG &DAG, const SDLoc &dl, SDValue Chain, SDValue Addr, SDValue Size, MachinePointerInfo DstPtrInfo, bool ZeroData) const |
virtual bool | disableGenericCombines (CodeGenOptLevel OptLevel) const |
Definition at line 20 of file SystemZSelectionDAGInfo.h.
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explicitdefault |
References DL, llvm::Length, and Size.
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overridevirtual |
Emit target-specific code that performs a memchr, in cases where that is faster than a libcall.
The first returned SDValue is the result of the memchr and the second is the chain. Both SDValues can be null if a normal libcall should be used.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 197 of file SystemZSelectionDAGInfo.cpp.
References AbstractManglingParser< Derived, Alloc >::Ops, llvm::ISD::ADD, llvm::ISD::AND, llvm::SystemZ::CCMASK_SRST, llvm::SystemZ::CCMASK_SRST_FOUND, DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getTargetConstant(), llvm::SDValue::getValue(), llvm::SelectionDAG::getVTList(), llvm::SelectionDAG::getZExtOrTrunc(), llvm::Length, llvm::SystemZISD::SEARCH_STRING, and llvm::SystemZISD::SELECT_CCMASK.
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overridevirtual |
Emit target-specific code that performs a memcmp/bcmp, in cases where that is faster than a libcall.
The first returned SDValue is the result of the memcmp and the second is the chain. Both SDValues can be null if a normal libcall should be used.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 182 of file SystemZSelectionDAGInfo.cpp.
References addIPMSequence(), assert(), llvm::SystemZISD::CLC, DL, llvm::dyn_cast(), emitMemMemImm(), emitMemMemReg(), llvm::SDValue::getValue(), and Size.
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overridevirtual |
Emit target-specific code that performs a memcpy.
This can be used by targets to provide code sequences for cases that don't fit the target's parameters for simple loads/stores and can be more efficient than using a library call. This function can return a null SDValue if the target declines to use custom code and a different lowering strategy should be used.
If AlwaysInline is true, the size is constant and the target should not emit any calls and is strongly encouraged to attempt to emit inline code even if it is beyond the usual threshold because this intrinsic is being expanded in a place where calls are not feasible (e.g. within the prologue for another call). If the target chooses to decline an AlwaysInline request here, legalize will resort to using simple loads and stores.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 70 of file SystemZSelectionDAGInfo.cpp.
References DL, llvm::dyn_cast(), emitMemMemImm(), emitMemMemReg(), llvm::SystemZISD::MVC, SDValue(), and Size.
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overridevirtual |
Emit target-specific code that performs a memset.
This can be used by targets to provide code sequences for cases that don't fit the target's parameters for simple stores and can be more efficient than using a library call. This function can return a null SDValue if the target declines to use custom code and a different lowering strategy should be used. Note that if AlwaysInline is true the function has to return a valid SDValue.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 98 of file SystemZSelectionDAGInfo.cpp.
References llvm::ISD::ADD, assert(), llvm::bit_floor(), DL, llvm::dyn_cast(), emitMemMemImm(), emitMemMemReg(), llvm::SelectionDAG::getAnyExtOrTrunc(), llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SelectionDAG::getStore(), llvm::MachinePointerInfo::getWithOffset(), llvm::SystemZISD::MEMSET_MVC, memsetStore(), llvm::popcount(), SDValue(), Size, llvm::ISD::TokenFactor, and llvm::SystemZISD::XC.
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overridevirtual |
Emit target-specific code that performs a strcmp, in cases where that is faster than a libcall.
The first returned SDValue is the result of the strcmp and the second is the chain. Both SDValues can be null if a normal libcall should be used.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 233 of file SystemZSelectionDAGInfo.cpp.
References addIPMSequence(), DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getVTList(), and llvm::SystemZISD::STRCMP.
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overridevirtual |
Emit target-specific code that performs a strcpy or stpcpy, in cases where that is faster than a libcall.
The first returned SDValue is the result of the copy (the start of the destination string for strcpy, a pointer to the null terminator for stpcpy) and the second is the chain. Both SDValues can be null if a normal libcall should be used.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 223 of file SystemZSelectionDAGInfo.cpp.
References DL, llvm::SelectionDAG::getConstant(), llvm::SelectionDAG::getNode(), llvm::SDValue::getValue(), llvm::SDValue::getValueType(), llvm::SelectionDAG::getVTList(), and llvm::SystemZISD::STPCPY.
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overridevirtual |
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 264 of file SystemZSelectionDAGInfo.cpp.
References DL, getBoundedStrlen(), and llvm::SelectionDAG::getConstant().
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overridevirtual |
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 271 of file SystemZSelectionDAGInfo.cpp.
References llvm::ISD::ADD, DL, getBoundedStrlen(), llvm::SelectionDAG::getNode(), and llvm::SelectionDAG::getZExtOrTrunc().
Returns true if a node with the given target-specific opcode has a memory operand.
Nodes with such opcodes can only be created with SelectionDAG::getMemIntrinsicNode.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 20 of file SystemZSelectionDAGInfo.cpp.
References llvm::SystemZISD::FIRST_MEMORY_OPCODE, and llvm::SystemZISD::LAST_MEMORY_OPCODE.
Returns true if a node with the given target-specific opcode has strict floating-point semantics.
Reimplemented from llvm::SelectionDAGTargetInfo.
Definition at line 25 of file SystemZSelectionDAGInfo.cpp.
References llvm::SystemZISD::FIRST_STRICTFP_OPCODE, and llvm::SystemZISD::LAST_STRICTFP_OPCODE.