arc64: HACK: volatile pointers will use .di

Author: claziss

gcc/config/arc64/arc64.c

@@ -1070,6 +1070,11 @@ arc64_print_operand (FILE *file, rtx x, int code)
 	  return;
 	}
 
+      /* FIXME! consider volatile accesses as .di accesses, everything
+	 under an option.  */
+      if (MEM_VOLATILE_P (x) && TARGET_VOLATILE_DI)
+	fputs (".di", file);
+
       switch (GET_CODE (XEXP (x, 0)))
 	{
 	case PRE_INC:
@@ -2875,6 +2880,10 @@ arc64_short_access_p (rtx op, machine_mode mode, bool load_p)
   if (GET_CODE (op) != MEM)
     return 0;
 
+  /* FIXME! remove it when "uncached" attribute is added.  */
+  if (MEM_VOLATILE_P (op) && TARGET_VOLATILE_DI)
+    return false;
+
   if (mode == VOIDmode)
     mode = GET_MODE (op);
 

gcc/config/arc64/arc64.opt

@@ -71,3 +71,7 @@ Target RejectNegative Joined
 munaligned-access
 Target Report Var(unaligned_access) Init(UNALIGNED_ACCESS_DEFAULT)
 Enable unaligned accesses to packed data.
+
+mvolatile-di
+Target Mask(VOLATILE_DI)
+Enable uncached access for volatile memories.