Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
+ * dce.c (check_argument_store): Pass the size instead of
+ the memory reference.
+ (find_call_stack_args): Pass MEM_SIZE to check_argument_store.
+
+2016-11-15 Richard Sandiford <richard.sandiford@arm.com>
+ Alan Hayward <alan.hayward@arm.com>
+ David Sherwood <david.sherwood@arm.com>
+
* alias.c (canon_rtx): Use simplify_gen_binary.
2016-11-15 Richard Sandiford <richard.sandiford@arm.com>
}
-/* Return true if store to MEM, starting OFF bytes from stack pointer,
+/* Return true if a store to SIZE bytes, starting OFF bytes from stack pointer,
is a call argument store, and clear corresponding bits from SP_BYTES
bitmap if it is. */
static bool
-check_argument_store (rtx mem, HOST_WIDE_INT off, HOST_WIDE_INT min_sp_off,
- HOST_WIDE_INT max_sp_off, bitmap sp_bytes)
+check_argument_store (HOST_WIDE_INT size, HOST_WIDE_INT off,
+ HOST_WIDE_INT min_sp_off, HOST_WIDE_INT max_sp_off,
+ bitmap sp_bytes)
{
HOST_WIDE_INT byte;
- for (byte = off; byte < off + GET_MODE_SIZE (GET_MODE (mem)); byte++)
+ for (byte = off; byte < off + size; byte++)
{
if (byte < min_sp_off
|| byte >= max_sp_off
break;
}
- if (GET_MODE_SIZE (GET_MODE (mem)) == 0
- || !check_argument_store (mem, off, min_sp_off,
+ if (!MEM_SIZE_KNOWN_P (mem)
+ || !check_argument_store (MEM_SIZE (mem), off, min_sp_off,
max_sp_off, sp_bytes))
break;