Implement a bunch more TargetSelectionDAGInfo infrastructure.

Move EmitTargetCodeForMemcpy, EmitTargetCodeForMemset, and
EmitTargetCodeForMemmove out of TargetLowering and into
SelectionDAGInfo to exercise this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103481 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 1 deletions

diff --git a/lib/Target/ARM/ARMSelectionDAGInfo.h b/lib/Target/ARM/ARMSelectionDAGInfo.h
index afe9a47201..d7d00c23f2 100644
--- a/lib/Target/ARM/ARMSelectionDAGInfo.h
+++ b/lib/Target/ARM/ARMSelectionDAGInfo.h
@@ -19,9 +19,24 @@
 namespace llvm {
 
 class ARMSelectionDAGInfo : public TargetSelectionDAGInfo {
+  /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
+  /// make the right decision when generating code for different targets.
+  const ARMSubtarget *Subtarget;
+
 public:
-  ARMSelectionDAGInfo();
+  explicit ARMSelectionDAGInfo(const TargetMachine &TM);
   ~ARMSelectionDAGInfo();
+
+  virtual
+  SDValue EmitTargetCodeForMemcpy(SelectionDAG &DAG, DebugLoc dl,
+                                  SDValue Chain,
+                                  SDValue Dst, SDValue Src,
+                                  SDValue Size, unsigned Align,
+                                  bool isVolatile, bool AlwaysInline,
+                                  const Value *DstSV,
+                                  uint64_t DstSVOff,
+                                  const Value *SrcSV,
+                                  uint64_t SrcSVOff) const;
 };
 
 }