Index: lib/Target/MSP430/MSP430InstrInfo.cpp
===================================================================
--- lib/Target/MSP430/MSP430InstrInfo.cpp
+++ lib/Target/MSP430/MSP430InstrInfo.cpp
@@ -78,10 +78,12 @@
 
   if (RC == &MSP430::GR16RegClass)
     BuildMI(MBB, MI, DL, get(MSP430::MOV16rm))
-      .addReg(DestReg).addFrameIndex(FrameIdx).addImm(0).addMemOperand(MMO);
+      .addReg(DestReg, getDefRegState(true)).addFrameIndex(FrameIdx)
+      .addImm(0).addMemOperand(MMO);
   else if (RC == &MSP430::GR8RegClass)
     BuildMI(MBB, MI, DL, get(MSP430::MOV8rm))
-      .addReg(DestReg).addFrameIndex(FrameIdx).addImm(0).addMemOperand(MMO);
+      .addReg(DestReg, getDefRegState(true)).addFrameIndex(FrameIdx)
+      .addImm(0).addMemOperand(MMO);
   else
     llvm_unreachable("Cannot store this register to stack slot!");
 }
Index: test/CodeGen/MSP430/spill-to-stack.ll
===================================================================
--- /dev/null
+++ test/CodeGen/MSP430/spill-to-stack.ll
@@ -0,0 +1,40 @@
+; RUN: llc -march=msp430 < %s
+%VeryLarge = type { i8, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
+
+; intentionally cause a spill
+define void @inc(%VeryLarge* byval align 1 %s) {
+entry:
+  %p0 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 0
+  %0 = load i8, i8* %p0
+  %p1 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 1
+  %1 = load i32, i32* %p1
+  %p2 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 2
+  %2 = load i32, i32* %p2
+  %p3 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 3
+  %3 = load i32, i32* %p3
+  %p4 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 4
+  %4 = load i32, i32* %p4
+  %p5 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 5
+  %5 = load i32, i32* %p5
+  %p6 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 6
+  %6 = load i32, i32* %p6
+  %p7 = getelementptr inbounds %VeryLarge, %VeryLarge* %s, i32 0, i32 7
+  %7 = load i32, i32* %p7
+  %add = add i8 %0, 1
+  store i8 %add, i8* %p0
+  %add2 = add i32 %1, 2
+  store i32 %add2, i32* %p1
+  %add3 = add i32 %2, 3
+  store i32 %add3, i32* %p2
+  %add4 = add i32 %3, 4
+  store i32 %add4, i32* %p3
+  %add5 = add i32 %4, 5
+  store i32 %add5, i32* %p4
+  %add6 = add i32 %5, 6
+  store i32 %add6, i32* %p5
+  %add7 = add i32 %6, 7
+  store i32 %add7, i32* %p6
+  %add8 = add i32 %7, 8
+  store i32 %add8, i32* %p7
+  ret void
+}