Re: [PATCH] Fix undefined behaviour in arc port

Re: [PATCH] Fix undefined behaviour in arc port
        * config/arc/arc.c (arc_legitimize_reload_address): Fix stupid
        thinko in last change.
        * config/arc/constraints.md (C2a): Fix typos in last change.

From-SVN: r228219

gcc/config/arc/arc.c

@@ -9322,7 +9322,7 @@ arc_legitimize_reload_address (rtx *p, machine_mode mode, int opnum,
       shift = scale >> 1;
       offset_base
 	= ((offset + (256 << shift))
-	   & ((HOST_WIDE_INT)(-512U << shift)));
+	   & ((HOST_WIDE_INT)((unsigned HOST_WIDE_INT) -512 << shift)));
       /* Sometimes the normal form does not suit DImode.  We
 	 could avoid that by using smaller ranges, but that
 	 would give less optimized code when SImode is

gcc/config/arc/constraints.md

@@ -195,7 +195,7 @@
   "@internal
    Unconditional two-address add / sub constant"
   (and (match_code "const_int")
-       (match_test "ival == HOST_WIDE_INT (HOST_WIDE_INT_M1U << 31)
+       (match_test "ival == (HOST_WIDE_INT) (HOST_WIDE_INT_M1U << 31)
 		    || (ival >= -0x4000 && ival <= 0x4000
 			&& ((ival >= 0 ? ival : -ival)
 			    <= 0x7ff * (ival & -ival)))")))