diff --git a/gcc/config/msp430/msp430.md b/gcc/config/msp430/msp430.md
index b6602fbca66..99299bd70ef 100644
--- a/gcc/config/msp430/msp430.md
+++ b/gcc/config/msp430/msp430.md
@@ -553,6 +553,15 @@
    SXT%X0\t%0"
 )
 
+(define_insn "extendqipsi2"
+  [(set (match_operand:PSI		   0 "msp430_general_dst_operand" "=r,m")
+	(sign_extend:PSI (match_operand:QI 1 "msp430_general_operand" "0,0")))]
+  ""
+  "@
+  SXT\t%0
+  SXTX.A\t%0"
+)
+
 ;; ------------------------
 ;; ZERO EXTEND INSTRUCTIONS
 ;; Byte-writes to registers clear bits 19:8