diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 9bc6dd95a60..bc223703f2a 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -3955,7 +3955,7 @@
     {
       if (INTVAL (operands[2]) & ~0x03)
 	{
-	  xops[0] = GEN_INT (INTVAL (operands[2]) >> 2);
+	  xops[0] = GEN_INT ((INTVAL (operands[2]) >> 2) & 0x3fffffff);
 	  xops[1] = operands[4];
 
 	  output_asm_insn (AS2 (mov%L1,%0,%1), xops);