Re: [PATCH] Fix undefined behaviour in arc port

[Jeff Law]

On 09/26/2015 03:05 AM, Andreas Schwab wrote:

Jeff Law <l...@redhat.com> writes:

@@ -9320,7 +9320,9 @@ arc_legitimize_reload_address (rtx *p, machine_mode mode, 
int opnum,
        if ((scale-1) & offset)
        scale = 1;
        shift = scale >> 1;
-      offset_base = (offset + (256 << shift)) & (-512 << shift);
+      offset_base
+       = ((offset + (256 << shift))
+          & ((HOST_WIDE_INT)(-512U << shift)));

If HOST_WIDE_INT is bigger than int then this is not the same.

I'll fix this too.

jeff