(SHORT_IMMEDIATES_SIGN_EXTEND): Define.

From-SVN: r4507

gcc/config/alpha/alpha.h

@@ -1229,6 +1229,9 @@ extern char *current_function_name;
    the rest of the bits in the register.  */
 #define BYTE_LOADS_SIGN_EXTEND
 
+/* Define if loading short immediate values into registers sign extends.  */
+#define SHORT_IMMEDIATES_SIGN_EXTEND
+
 /* We aren't doing ANYTHING about debugging for now.  */
 /* #define SDB_DEBUGGING_INFO */
 

gcc/config/rs6000/rs6000.h

@@ -1193,6 +1193,9 @@ struct rs6000_args {int words, fregno, nargs_prototype; };
 /* Define if normal loads of shorter-than-word items from memory clears
    the rest of the bigs in the register.  */
 #define BYTE_LOADS_ZERO_EXTEND
+
+/* Define if loading short immediate values into registers sign extends.  */
+#define SHORT_IMMEDIATES_SIGN_EXTEND
 
 /* The RS/6000 uses the XCOFF format.  */