diff --git a/llvm/lib/CodeGen/InlineSpiller.cpp b/llvm/lib/CodeGen/InlineSpiller.cpp
index 00ca3d5..a1bd972 100644
--- a/llvm/lib/CodeGen/InlineSpiller.cpp
+++ b/llvm/lib/CodeGen/InlineSpiller.cpp
@@ -154,6 +154,10 @@
   LiveInterval &NewLI = edit_->create(mri_, lis_, vrm_);
   NewLI.markNotSpillable();
 
+  // Rematting for a copy: Set allocation hint to be the destination register.
+  if (MI->isCopy())
+    mri_.setRegAllocationHint(NewLI.reg, 0, MI->getOperand(0).getReg());
+
   // Finally we can rematerialize OrigMI before MI.
   SlotIndex DefIdx = edit_->rematerializeAt(*MI->getParent(), MI, NewLI.reg, RM,
                                             lis_, tii_, tri_);