Index: llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
===================================================================
--- llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
+++ llvm/lib/Target/PowerPC/PPCInstrInfo.cpp
@@ -3063,6 +3063,11 @@
   RegMO = &DefMI.getOperand(1);
   ImmMO = &DefMI.getOperand(2);
 
+  // Going from XForm to DForm loads means that the load must be word aligned.
+  // XForm loads do not have this restriction.
+  if (ImmMO->isGlobal() && ImmMO->getGlobal()->getAlignment() < 4)
+    return false;
+
   // This DefMI is elgible for forwarding if it is:
   // 1. add inst
   // 2. one of the operands is Imm/CPI/Global.