* combine.c (make_extraction): Don't make extension of CONST_INT.

From-SVN: r50491

gcc/ChangeLog

+Sat Mar  9 07:20:01 2002  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>
+
+	* combine.c (make_extraction): Don't make extension of CONST_INT.
+
 2002-03-09  Alexandre Oliva  <aoliva@redhat.com>
 
 	* config/mips/mips.c (function_arg_pass_by_reference): Force to 0

gcc/combine.c

@@ -6032,6 +6032,9 @@ make_extraction (mode, inner, pos, pos_rtx, len,
       if (mode == tmode)
 	return new;
 
+      if (GET_CODE (new) == CONST_INT)
+	return trunc_int_for_mode (INTVAL (new), mode);
+
       /* If we know that no extraneous bits are set, and that the high
 	 bit is not set, convert the extraction to the cheaper of
 	 sign and zero extension, that are equivalent in these cases.  */