From 2e29080e44cce899f9d5181185aba0a8a8791a9a 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 gcc/ChangeLog: 2016-12-19 Martin Liska * cgraphclones.c (cgraph_node::create_virtual_clone): Create either IPA_REF_LOAD of IPA_REF_READ depending on whether new_tree is a VAR_DECL or an ADDR_EXPR. * ipa-cp.c (create_specialized_node): Add reference just for ADDR_EXPRs. * symtab.c (symtab_node::maybe_create_reference): Remove guard as it's guarded in callers. --- gcc/cgraphclones.c | 6 +++++- gcc/ipa-cp.c | 3 ++- gcc/symtab.c | 2 -- 3 files changed, 7 insertions(+), 4 deletions(-) diff --git a/gcc/cgraphclones.c b/gcc/cgraphclones.c index 349892dab67..6c8fe156f23 100644 --- a/gcc/cgraphclones.c +++ b/gcc/cgraphclones.c @@ -624,7 +624,11 @@ 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); + { + ipa_ref_use use_type + = TREE_CODE (map->new_tree) == ADDR_EXPR ? IPA_REF_ADDR : IPA_REF_LOAD; + new_node->maybe_create_reference (map->new_tree, use_type, 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 d3b50524457..fd312b56fde 100644 --- a/gcc/ipa-cp.c +++ b/gcc/ipa-cp.c @@ -3787,7 +3787,8 @@ 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); + if (TREE_CODE (av->value) == ADDR_EXPR) + new_node->maybe_create_reference (av->value, IPA_REF_ADDR, NULL); if (dump_file && (dump_flags & TDF_DETAILS)) { diff --git a/gcc/symtab.c b/gcc/symtab.c index 73168a8db09..562a4a2f6a6 100644 --- a/gcc/symtab.c +++ b/gcc/symtab.c @@ -598,8 +598,6 @@ symtab_node::maybe_create_reference (tree val, enum ipa_ref_use use_type, gimple *stmt) { STRIP_NOPS (val); - if (TREE_CODE (val) != ADDR_EXPR) - return NULL; val = get_base_var (val); if (val && VAR_OR_FUNCTION_DECL_P (val)) { -- 2.11.0