This is the mail archive of the
gcc-patches@gcc.gnu.org
mailing list for the GCC project.
DECL_CALL_CLOBBERED tweek
- From: Jan Hubicka <jh at suse dot cz>
- To: gcc-patches at gcc dot gnu dot org, dnovillo at redhat dot com, amacleod at redhat dot com
- Date: Thu, 21 Dec 2006 03:22:40 +0100
- Subject: DECL_CALL_CLOBBERED tweek
Hi,
this patch I am fully testing now on i686 makes the call clobbered issues go
away. If this seems sensible, I would for sake of consistency replace
DECL_CALL_CLOBBERED with gimple_call_clobbered_var and
gimple_set_call_clobbered_var inlines in tree-flow-inline.h?
Honza
* tree.h (DECL_CALL_CLOBBERED): Use variable annotation.
(tree_decl_common): Remove call_clobbered_flag.
* tree-flow.h (var_ann_d): Add call_clobbered flag.
Index: tree.h
===================================================================
*** tree.h (revision 120083)
--- tree.h (working copy)
*************** struct tree_memory_partition_tag GTY(())
*** 2611,2617 ****
The result of this flag should always be the same as
bitmap_bit_p (call_clobbered_vars, DECL_UID (decl)). */
#define DECL_CALL_CLOBBERED(DECL) \
! DECL_COMMON_CHECK (DECL)->decl_common.call_clobbered_flag
struct tree_decl_common GTY(())
{
--- 2611,2617 ----
The result of this flag should always be the same as
bitmap_bit_p (call_clobbered_vars, DECL_UID (decl)). */
#define DECL_CALL_CLOBBERED(DECL) \
! get_var_ann (DECL)->call_clobbered
struct tree_decl_common GTY(())
{
*************** struct tree_decl_common GTY(())
*** 2653,2659 ****
/* Logically, these two would go in a theoretical base shared by var and
parm decl. */
unsigned gimple_reg_flag : 1;
- unsigned call_clobbered_flag : 1;
union tree_decl_u1 {
/* In a FUNCTION_DECL for which DECL_BUILT_IN holds, this is
--- 2653,2658 ----
Index: tree-flow.h
===================================================================
*** tree-flow.h (revision 120089)
--- tree-flow.h (working copy)
*************** struct var_ann_d GTY(())
*** 251,256 ****
--- 251,259 ----
/* True for HEAP and PARM_NOALIAS artificial variables. */
unsigned is_heapvar : 1;
+ /* True for call clobbered variables. */
+ unsigned call_clobbered : 1;
+
/* Memory partition tag assigned to this symbol. */
tree mpt;