From f42c5ea2ce09ecbf02e472ce31add53189115d66 Mon Sep 17 00:00:00 2001 From: marxin Date: Mon, 19 Dec 2016 11:03:34 +0100 Subject: [PATCH] Fix IPA CP where it forgot to add a reference in cgraph (PR ipa/71190). gcc/ChangeLog: 2017-01-19 Martin Liska 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. --- gcc/cgraph.h | 6 ++---- gcc/cgraphclones.c | 2 +- gcc/ipa-cp.c | 2 +- gcc/symtab.c | 24 +++++++++++++++--------- 4 files changed, 19 insertions(+), 15 deletions(-) diff --git a/gcc/cgraph.h b/gcc/cgraph.h index db2915c5751..5410a71176a 100644 --- a/gcc/cgraph.h +++ b/gcc/cgraph.h @@ -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); diff --git a/gcc/cgraphclones.c b/gcc/cgraphclones.c index a17663519a9..c2337e84553 100644 --- a/gcc/cgraphclones.c +++ b/gcc/cgraphclones.c @@ -624,7 +624,7 @@ cgraph_node::create_virtual_clone (vec 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 diff --git a/gcc/ipa-cp.c b/gcc/ipa-cp.c index 9cc903769e8..aa3c9973a66 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -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)) { diff --git a/gcc/symtab.c b/gcc/symtab.c index 87120970d34..64abf32ae13 100644 --- a/gcc/symtab.c +++ b/gcc/symtab.c @@ -588,18 +588,24 @@ 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: + return NULL; + } + val = get_base_var (val); if (val && VAR_OR_FUNCTION_DECL_P (val)) { -- 2.11.0