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var-tracking.c (create_entry_value): New function.

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* var-tracking.c (create_entry_value): New function.
	(vt_add_function_parameter): Use it.

From-SVN: r174534
This commit is contained in:
Jakub Jelinek 2011-06-01 18:08:48 +02:00 committed by Jakub Jelinek
parent 0699e415bc
commit ebdc0d4b15
2 changed files with 41 additions and 51 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-06-01 Jakub Jelinek <jakub@redhat.com>
* var-tracking.c (create_entry_value): New function.
(vt_add_function_parameter): Use it.
2011-06-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/i386/crtfastmath.c [!__x86_64__ && __sun__ && __svr4__]:

87
gcc/var-tracking.c
View File

@ -8378,6 +8378,39 @@ vt_get_decl_and_offset (rtx rtl, tree *declp, HOST_WIDE_INT *offsetp)
return false;
}
/* Helper function for vt_add_function_parameter. RTL is
the expression and VAL corresponding cselib_val pointer
for which ENTRY_VALUE should be created. */
static void
create_entry_value (rtx rtl, cselib_val *val)
{
cselib_val *val2;
struct elt_loc_list *el;
el = (struct elt_loc_list *) ggc_alloc_cleared_atomic (sizeof (*el));
el->next = val->locs;
el->loc = gen_rtx_ENTRY_VALUE (GET_MODE (rtl));
ENTRY_VALUE_EXP (el->loc) = rtl;
el->setting_insn = get_insns ();
val->locs = el;
val2 = cselib_lookup_from_insn (el->loc, GET_MODE (rtl), true,
VOIDmode, get_insns ());
if (val2
&& val2 != val
&& val2->locs
&& rtx_equal_p (val2->locs->loc, el->loc))
{
struct elt_loc_list *el2;
preserve_value (val2);
el2 = (struct elt_loc_list *) ggc_alloc_cleared_atomic (sizeof (*el2));
el2->next = val2->locs;
el2->loc = val->val_rtx;
el2->setting_insn = get_insns ();
val2->locs = el2;
}
}
/* Insert function parameter PARM in IN and OUT sets of ENTRY_BLOCK. */
static void
@ -8501,32 +8534,8 @@ vt_add_function_parameter (tree parm)
VAR_INIT_STATUS_INITIALIZED, NULL, INSERT);
if (dv_is_value_p (dv))
{
cselib_val *val = CSELIB_VAL_PTR (dv_as_value (dv)), *val2;
struct elt_loc_list *el;
el = (struct elt_loc_list *)
ggc_alloc_cleared_atomic (sizeof (*el));
el->next = val->locs;
el->loc = gen_rtx_ENTRY_VALUE (GET_MODE (incoming));
ENTRY_VALUE_EXP (el->loc) = incoming;
el->setting_insn = get_insns ();
val->locs = el;
val2 = cselib_lookup_from_insn (el->loc, GET_MODE (incoming),
true, VOIDmode, get_insns ());
if (val2
&& val2 != val
&& val2->locs
&& rtx_equal_p (val2->locs->loc, el->loc))
{
struct elt_loc_list *el2;
preserve_value (val2);
el2 = (struct elt_loc_list *)
ggc_alloc_cleared_atomic (sizeof (*el2));
el2->next = val2->locs;
el2->loc = dv_as_value (dv);
el2->setting_insn = get_insns ();
val2->locs = el2;
}
cselib_val *val = CSELIB_VAL_PTR (dv_as_value (dv));
create_entry_value (incoming, val);
if (TREE_CODE (TREE_TYPE (parm)) == REFERENCE_TYPE
&& INTEGRAL_TYPE_P (TREE_TYPE (TREE_TYPE (parm))))
{
@ -8538,31 +8547,7 @@ vt_add_function_parameter (tree parm)
if (val)
{
preserve_value (val);
el = (struct elt_loc_list *)
ggc_alloc_cleared_atomic (sizeof (*el));
el->next = val->locs;
el->loc = gen_rtx_ENTRY_VALUE (indmode);
ENTRY_VALUE_EXP (el->loc) = mem;
el->setting_insn = get_insns ();
val->locs = el;
val2 = cselib_lookup_from_insn (el->loc, GET_MODE (mem),
true, VOIDmode,
get_insns ());
if (val2
&& val2 != val
&& val2->locs
&& rtx_equal_p (val2->locs->loc, el->loc))
{
struct elt_loc_list *el2;
preserve_value (val2);
el2 = (struct elt_loc_list *)
ggc_alloc_cleared_atomic (sizeof (*el2));
el2->next = val2->locs;
el2->loc = val->val_rtx;
el2->setting_insn = get_insns ();
val2->locs = el2;
}
create_entry_value (mem, val);
}
}
}