Fix alpha-vms packed-1 failure.

	* alpha.c (alpha_expand_unaligned_load): Use tgt instead of addr
	as dest of expand_binop call.

From-SVN: r18921

gcc/ChangeLog

 Tue Mar 31 16:57:33 1998  Jim Wilson  <wilson@cygnus.com>
 
+	* alpha.c (alpha_expand_unaligned_load): Use tgt instead of addr
+	as dest of expand_binop call.
+
 	* alpha.md (extzv): Correct check for valid operand[2] values.
 
 	* profile.c (branch_prob): Add code to recognize HPPA tablejump entry

gcc/config/alpha/alpha.c

@@ -1337,7 +1337,10 @@ alpha_expand_unaligned_load (tgt, mem, size, ofs, sign)
       emit_insn (gen_extxl (extl, meml, GEN_INT (64), addr));
       emit_insn (gen_extqh (exth, memh, addr));
 
-      addr = expand_binop (DImode, ior_optab, extl, exth, addr, 1, OPTAB_WIDEN);
+      /* We must use tgt here for the target.  Alpha-vms port fails if we use
+	 addr for the target, because addr is marked as a pointer and combine
+	 knows that pointers are always sign-extended 32 bit values.  */
+      addr = expand_binop (DImode, ior_optab, extl, exth, tgt, 1, OPTAB_WIDEN);
       addr = expand_binop (DImode, ashr_optab, addr, GEN_INT (48), 
 			   addr, 1, OPTAB_WIDEN);
     }