diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.h')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h index 0f15eba..4549cba 100644 --- a/lib/Target/X86/X86ISelLowering.h +++ b/lib/Target/X86/X86ISelLowering.h @@ -417,12 +417,15 @@ namespace llvm { virtual unsigned getByValTypeAlignment(const Type *Ty) const; /// getOptimalMemOpType - Returns the target specific optimal type for load - /// and store operations as a result of memset, memcpy, and memmove - /// lowering. It returns EVT::iAny if SelectionDAG should be responsible for - /// determining it. - virtual EVT getOptimalMemOpType(uint64_t Size, unsigned Align, - bool isSrcConst, bool isSrcStr, - SelectionDAG &DAG) const; + /// and store operations as a result of memset, memcpy, and memmove lowering. + /// If DstAlign is zero that means it's safe to destination alignment can + /// satisfy any constraint. Similarly if SrcAlign is zero it means there + /// isn't a need to check it against alignment requirement, probably because + /// the source does not need to be loaded. It returns EVT::Other if + /// SelectionDAG should be responsible for determining it. + virtual EVT getOptimalMemOpType(uint64_t Size, + unsigned DstAlign, unsigned SrcAlign, + bool SafeToUseFP, SelectionDAG &DAG) const; /// allowsUnalignedMemoryAccesses - Returns true if the target allows /// unaligned memory accesses. of the specified type. |
