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tree-ssa-structalias.c (get_fi_for_callee): Restructure. 

2011-04-29  Richard Guenther  <rguenther@suse.de>

	* tree-ssa-structalias.c (get_fi_for_callee): Restructure.
	Handle OBJ_TYPE_REF.
	(find_func_aliases_for_call): Use it more consistently.

From-SVN: r173152
This commit is contained in:
Richard Guenther 2011-04-29 10:59:33 +00:00 committed by Richard Biener
parent 9d9305ea5d
commit 5c04e9f475
2 changed files with 24 additions and 28 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-04-29 Richard Guenther <rguenther@suse.de>
* tree-ssa-structalias.c (get_fi_for_callee): Restructure.
Handle OBJ_TYPE_REF.
(find_func_aliases_for_call): Use it more consistently.
2011-04-29 Alexandre Oliva <aoliva@redhat.com>
* haifa-sched.c (last_nondebug_scheduled_insn): New.

46
gcc/tree-ssa-structalias.c
View File

@ -3925,35 +3925,29 @@ handle_pure_call (gimple stmt, VEC(ce_s, heap) **results)
static varinfo_t
get_fi_for_callee (gimple call)
{
tree decl;
tree decl, fn = gimple_call_fn (call);
gcc_assert (!gimple_call_internal_p (call));
if (fn && TREE_CODE (fn) == OBJ_TYPE_REF)
fn = OBJ_TYPE_REF_EXPR (fn);
/* If we can directly resolve the function being called, do so.
Otherwise, it must be some sort of indirect expression that
we should still be able to handle. */
decl = gimple_call_fndecl (call);
decl = gimple_call_addr_fndecl (fn);
if (decl)
return get_vi_for_tree (decl);
decl = gimple_call_fn (call);
/* The function can be either an SSA name pointer or,
worse, an OBJ_TYPE_REF. In this case we have no
/* If the function is anything other than a SSA name pointer we have no
clue and should be getting ANYFN (well, ANYTHING for now). */
if (TREE_CODE (decl) == SSA_NAME)
{
if (TREE_CODE (decl) == SSA_NAME
&& (TREE_CODE (SSA_NAME_VAR (decl)) == PARM_DECL
|| TREE_CODE (SSA_NAME_VAR (decl)) == RESULT_DECL)
&& SSA_NAME_IS_DEFAULT_DEF (decl))
decl = SSA_NAME_VAR (decl);
return get_vi_for_tree (decl);
}
else if (TREE_CODE (decl) == INTEGER_CST
|| TREE_CODE (decl) == OBJ_TYPE_REF)
if (!fn || TREE_CODE (fn) != SSA_NAME)
return get_varinfo (anything_id);
else
gcc_unreachable ();
if ((TREE_CODE (SSA_NAME_VAR (fn)) == PARM_DECL
|| TREE_CODE (SSA_NAME_VAR (fn)) == RESULT_DECL)
&& SSA_NAME_IS_DEFAULT_DEF (fn))
fn = SSA_NAME_VAR (fn);
return get_vi_for_tree (fn);
}
/* Create constraints for the builtin call T. Return true if the call
@ -4199,11 +4193,9 @@ find_func_aliases_for_call (gimple t)
&& find_func_aliases_for_builtin_call (t))
return;
fi = get_fi_for_callee (t);
if (!in_ipa_mode
|| gimple_call_internal_p (t)
|| (fndecl
&& (!(fi = lookup_vi_for_tree (fndecl))
|| !fi->is_fn_info)))
|| (fndecl && !fi->is_fn_info))
{
VEC(ce_s, heap) *rhsc = NULL;
int flags = gimple_call_flags (t);
@ -4231,8 +4223,6 @@ find_func_aliases_for_call (gimple t)
tree lhsop;
unsigned j;
fi = get_fi_for_callee (t);
/* Assign all the passed arguments to the appropriate incoming
parameters of the function. */
for (j = 0; j < gimple_call_num_args (t); j++)
@ -4271,7 +4261,7 @@ find_func_aliases_for_call (gimple t)
VEC_free(ce_s, heap, tem);
}
FOR_EACH_VEC_ELT (ce_s, lhsc, j, lhsp)
process_constraint (new_constraint (*lhsp, rhs));
process_constraint (new_constraint (*lhsp, rhs));
}
/* If we pass the result decl by reference, honor that. */
@ -4286,7 +4276,7 @@ find_func_aliases_for_call (gimple t)
get_constraint_for_address_of (lhsop, &rhsc);
lhs = get_function_part_constraint (fi, fi_result);
FOR_EACH_VEC_ELT (ce_s, rhsc, j, rhsp)
process_constraint (new_constraint (lhs, *rhsp));
process_constraint (new_constraint (lhs, *rhsp));
VEC_free (ce_s, heap, rhsc);
}
@ -4299,7 +4289,7 @@ find_func_aliases_for_call (gimple t)
get_constraint_for (gimple_call_chain (t), &rhsc);
lhs = get_function_part_constraint (fi, fi_static_chain);
FOR_EACH_VEC_ELT (ce_s, rhsc, j, rhsp)
process_constraint (new_constraint (lhs, *rhsp));
process_constraint (new_constraint (lhs, *rhsp));
}
}
}