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Fix IPA CP where it forgot to add a reference in cgraph (PR ipa/71190). 

2017-01-20  Martin Liska  <mliska@suse.cz>

	PR ipa/71190
	* cgraph.h (maybe_create_reference): Remove argument and
	update comment.
	* cgraphclones.c (cgraph_node::create_virtual_clone): Remove one
	argument.
	* ipa-cp.c (create_specialized_node): Likewise.
	* symtab.c (symtab_node::maybe_create_reference): Handle
	VAR_DECLs and ADDR_EXPRs and select ipa_ref_use type.

From-SVN: r244687
This commit is contained in:
Martin Liska 2017-01-20 09:44:35 +01:00 committed by Martin Liska
parent a809d56440
commit 2d8d3ae293
5 changed files with 31 additions and 15 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2017-01-20 Martin Liska <mliska@suse.cz>
PR ipa/71190
* cgraph.h (maybe_create_reference): Remove argument and
update comment.
* cgraphclones.c (cgraph_node::create_virtual_clone): Remove one
argument.
* ipa-cp.c (create_specialized_node): Likewise.
* symtab.c (symtab_node::maybe_create_reference): Handle
VAR_DECLs and ADDR_EXPRs and select ipa_ref_use type.
2017-01-20 Martin Liska <mliska@suse.cz>
* read-rtl-function.c (function_reader::create_function): Use

6
gcc/cgraph.h
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@ -131,11 +131,9 @@ public:
enum ipa_ref_use use_type, gimple *stmt);
/* If VAL is a reference to a function or a variable, add a reference from
this symtab_node to the corresponding symbol table node. USE_TYPE specify
type of the use and STMT the statement (if it exists). Return the new
this symtab_node to the corresponding symbol table node. Return the new
reference or NULL if none was created. */
ipa_ref *maybe_create_reference (tree val, enum ipa_ref_use use_type,
gimple *stmt);
ipa_ref *maybe_create_reference (tree val, gimple *stmt);
/* Clone all references from symtab NODE to this symtab_node. */
void clone_references (symtab_node *node);

2
gcc/cgraphclones.c
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@ -624,7 +624,7 @@ cgraph_node::create_virtual_clone (vec<cgraph_edge *> redirect_callers,
|| in_lto_p)
new_node->unique_name = true;
FOR_EACH_VEC_SAFE_ELT (tree_map, i, map)
new_node->maybe_create_reference (map->new_tree, IPA_REF_ADDR, NULL);
new_node->maybe_create_reference (map->new_tree, NULL);
if (ipa_transforms_to_apply.exists ())
new_node->ipa_transforms_to_apply

2
gcc/ipa-cp.c
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@ -3786,7 +3786,7 @@ create_specialized_node (struct cgraph_node *node,
args_to_skip, "constprop");
ipa_set_node_agg_value_chain (new_node, aggvals);
for (av = aggvals; av; av = av->next)
new_node->maybe_create_reference (av->value, IPA_REF_ADDR, NULL);
new_node->maybe_create_reference (av->value, NULL);
if (dump_file && (dump_flags & TDF_DETAILS))
{

25
gcc/symtab.c
View File

@ -588,18 +588,25 @@ symtab_node::create_reference (symtab_node *referred_node,
return ref;
}
/* If VAL is a reference to a function or a variable, add a reference from
this symtab_node to the corresponding symbol table node. USE_TYPE specify
type of the use and STMT the statement (if it exists). Return the new
reference or NULL if none was created. */
ipa_ref *
symtab_node::maybe_create_reference (tree val, enum ipa_ref_use use_type,
gimple *stmt)
symtab_node::maybe_create_reference (tree val, gimple *stmt)
{
STRIP_NOPS (val);
if (TREE_CODE (val) != ADDR_EXPR)
return NULL;
ipa_ref_use use_type;
switch (TREE_CODE (val))
{
case VAR_DECL:
use_type = IPA_REF_LOAD;
break;
case ADDR_EXPR:
use_type = IPA_REF_ADDR;
break;
default:
gcc_assert (!handled_component_p (val));
return NULL;
}
val = get_base_var (val);
if (val && VAR_OR_FUNCTION_DECL_P (val))
{