diff --git a/llvm/lib/CodeGen/StackColoring.cpp b/llvm/lib/CodeGen/StackColoring.cpp
--- a/llvm/lib/CodeGen/StackColoring.cpp
+++ b/llvm/lib/CodeGen/StackColoring.cpp
@@ -912,6 +912,8 @@
     const AllocaInst *To = MFI->getObjectAllocation(SI.second);
     assert(To && From && "Invalid allocation object");
     Allocas[From] = To;
+    if (From->comesBefore(To))
+      const_cast<AllocaInst*>(To)->moveBefore(const_cast<AllocaInst*>(From));
 
     // AA might be used later for instruction scheduling, and we need it to be
     // able to deduce the correct aliasing releationships between pointers