unroll.c (copy_loop_body): Fix one instance of using host arithmetic on the target...

* unroll.c (copy_loop_body): Fix one instance of using host
arithmetic on the target; fixes loop-4 on a 32-bit -> 64-bit
cross-compile.

From-SVN: r35109

gcc/ChangeLog

 2000-07-17  Geoffrey Keating  <geoffk@cygnus.com>
 
+	* unroll.c (copy_loop_body): Fix one instance of using host
+	arithmetic on the target; fixes loop-4 on a 32-bit -> 64-bit
+	cross-compile.
+
 	* tlink.c (scan_linker_output): Tweak for output of AIX ld.
 
 2000-07-17  Richard Henderson  <rth@cygnus.com>

gcc/unroll.c

@@ -1940,8 +1940,9 @@ copy_loop_body (copy_start, copy_end, map, exit_label, last_iteration,
 #endif
 
 		  splittable_regs[regno]
-		    = GEN_INT (INTVAL (giv_inc)
-			       + INTVAL (splittable_regs[src_regno]));
+		    = simplify_gen_binary (PLUS, GET_MODE (giv_src_reg),
+					   giv_inc,
+					   splittable_regs[src_regno]);
 		  giv_inc = splittable_regs[regno];
 
 		  /* Now split the induction variable by changing the dest