===================================================================
@@ -1897,6 +1897,14 @@
rtx addr2 = gen_rtx_REG (SImode, 2);
rtx len = gen_rtx_REG (SImode, 3);
+ /* Do not use when the source or destination are volatile - the SMOVF
+ instruction will read and write in word sized blocks, which may be
+ outside of the valid address range. */
+ if (MEM_P (operands[0]) && MEM_VOLATILE_P (operands[0]))
+ FAIL;
+ if (MEM_P (operands[1]) && MEM_VOLATILE_P (operands[1]))
+ FAIL;
+
if (REG_P (operands[0]) && (REGNO (operands[0]) == 2
|| REGNO (operands[0]) == 3))
FAIL;