#include <HexagonSelectionDAGInfo.h>
Public Member Functions | |
| HexagonSelectionDAGInfo (const DataLayout &DL) | |
| ~HexagonSelectionDAGInfo () | |
| SDValue | EmitTargetCodeForMemcpy (SelectionDAG &DAG, SDLoc dl, SDValue Chain, SDValue Dst, SDValue Src, SDValue Size, unsigned Align, bool isVolatile, bool AlwaysInline, MachinePointerInfo DstPtrInfo, MachinePointerInfo SrcPtrInfo) const override |
Detailed Description
Definition at line 21 of file HexagonSelectionDAGInfo.h.
Constructor & Destructor Documentation
| HexagonSelectionDAGInfo::HexagonSelectionDAGInfo | ( | const DataLayout & | DL | ) | [explicit] |
Definition at line 21 of file HexagonSelectionDAGInfo.cpp.
Definition at line 24 of file HexagonSelectionDAGInfo.cpp.
Member Function Documentation
| SDValue HexagonSelectionDAGInfo::EmitTargetCodeForMemcpy | ( | SelectionDAG & | DAG, |
| SDLoc | dl, | ||
| SDValue | Chain, | ||
| SDValue | Op1, | ||
| SDValue | Op2, | ||
| SDValue | Op3, | ||
| unsigned | Align, | ||
| bool | isVolatile, | ||
| bool | AlwaysInline, | ||
| MachinePointerInfo | DstPtrInfo, | ||
| MachinePointerInfo | SrcPtrInfo | ||
| ) | const [override, virtual] |
EmitTargetCodeForMemcpy - 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::TargetSelectionDAGInfo.
Definition at line 29 of file HexagonSelectionDAGInfo.cpp.
References llvm::dyn_cast(), llvm::flag_aligned_memcpy, and llvm::ConstantSDNode::getZExtValue().
The documentation for this class was generated from the following files:
1.7.6.1