Hi,
memory attributes are currently optimized and attached to RTL even when not
optimizing. This is obviously just a wasted effort.
Bootstrapped/regtested x86_64-linux, OK?
Honza
* emit-rtl.c (set_mem_attrs, set_mem_attributes_minus_bitpos):
Do not compute memory attributes when not optimizing.
Index: emit-rtl.c
===================================================================
--- emit-rtl.c (revision 231081)
+++ emit-rtl.c (working copy)
@@ -336,7 +336,8 @@ static void
set_mem_attrs (rtx mem, mem_attrs *attrs)
{
/* If everything is the default, we can just clear the attributes. */
- if (mem_attrs_eq_p (attrs, mode_mem_attrs[(int) GET_MODE (mem)]))
+ if (!optimize
+ || mem_attrs_eq_p (attrs, mode_mem_attrs[(int) GET_MODE (mem)]))
{
MEM_ATTRS (mem) = 0;
return;
@@ -1749,6 +1750,9 @@ set_mem_attributes_minus_bitpos (rtx ref
struct mem_attrs attrs, *defattrs, *refattrs;
addr_space_t as;
+ if (!optimize)
+ return;
+
/* It can happen that type_for_mode was given a mode for which there
is no language-level type. In which case it returns NULL, which
we can see here. */
