diff options
Diffstat (limited to 'lib/Target/X86/X86ISelLowering.h')
| -rw-r--r-- | lib/Target/X86/X86ISelLowering.h | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h index 4549cba6f3..2c2a5fbb80 100644 --- a/lib/Target/X86/X86ISelLowering.h +++ b/lib/Target/X86/X86ISelLowering.h @@ -417,15 +417,19 @@ 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. - /// 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; + /// 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. If + /// 'NonScalarIntSafe' is true, that means it's safe to return a + /// non-scalar-integer type, e.g. empty string source, constant, or loaded + /// from memory. It returns EVT::Other if SelectionDAG should be responsible + /// for determining it. + virtual EVT + getOptimalMemOpType(uint64_t Size, + unsigned DstAlign, unsigned SrcAlign, + bool NonScalarIntSafe, SelectionDAG &DAG) const; /// allowsUnalignedMemoryAccesses - Returns true if the target allows /// unaligned memory accesses. of the specified type. |