re PR middle-end/24950 (ICE in operand_subword_force)

	PR middle-end/24950
	* expmed.c (store_bit_field): Don't attempt to insv a field
	larger than the reg.

From-SVN: r107354

gcc/ChangeLog

 2005-11-22  Alan Modra  <amodra@bigpond.net.au>
 
+	PR middle-end/24950
+	* expmed.c (store_bit_field): Don't attempt to insv a field
+	larger than the reg.
+
+2005-11-22  Alan Modra  <amodra@bigpond.net.au>
+
 	PR target/24954
 	* config/rs6000/predicated.md (easy_vector_constant_add_self): Use
 	explicit sign extension, not a (char) cast.

gcc/expmed.c

@@ -643,6 +643,7 @@ store_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
 	    bestmode = GET_MODE (op0);
 
 	  if (bestmode == VOIDmode
+	      || GET_MODE_SIZE (bestmode) < GET_MODE_SIZE (fieldmode)
 	      || (SLOW_UNALIGNED_ACCESS (bestmode, MEM_ALIGN (op0))
 		  && GET_MODE_BITSIZE (bestmode) > MEM_ALIGN (op0)))
 	    goto insv_loses;