1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/MSP430/MSP430RegisterInfo.cpp b/llvm/lib/Target/MSP430/MSP430RegisterInfo.cpp
index 578443167c0..f64017ef253 100644
--- a/llvm/lib/Target/MSP430/MSP430RegisterInfo.cpp
+++ b/llvm/lib/Target/MSP430/MSP430RegisterInfo.cpp
@@ -88,8 +88,10 @@ BitVector MSP430RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
   Reserved.set(MSP430::CGW);
 
   // Mark frame pointer as reserved if needed.
-  if (TFI->hasFP(MF))
+  if (TFI->hasFP(MF)) {
+    Reserved.set(MSP430::FPB);
     Reserved.set(MSP430::FPW);
+  }
 
   return Reserved;
 }