Update LLVM to r100181.

1 files changed, 9 insertions, 6 deletions

diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 0f15ebafb0e5..4549cba6f397 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.