diff options
Diffstat (limited to 'gcc/cgraph.c')
| -rw-r--r-- | gcc/cgraph.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/gcc/cgraph.c b/gcc/cgraph.c index 698f56ea549..8314ecfc483 100644 --- a/gcc/cgraph.c +++ b/gcc/cgraph.c @@ -44,10 +44,8 @@ along with GCC; see the file COPYING3. If not see #include "dominance.h" #include "cfg.h" #include "basic-block.h" -#include "plugin-api.h" #include "hard-reg-set.h" #include "function.h" -#include "ipa-ref.h" #include "cgraph.h" #include "intl.h" #include "tree-ssa-alias.h" @@ -159,6 +157,29 @@ function_version_hasher::equal (cgraph_function_version_info *n1, static GTY(()) struct cgraph_function_version_info * version_info_node = NULL; +/* Return true if NODE's address can be compared. */ + +bool +symtab_node::address_can_be_compared_p () +{ + /* Address of virtual tables and functions is never compared. */ + if (DECL_VIRTUAL_P (decl)) + return false; + /* Address of C++ cdtors is never compared. */ + if (is_a <cgraph_node *> (this) + && (DECL_CXX_CONSTRUCTOR_P (decl) + || DECL_CXX_DESTRUCTOR_P (decl))) + return false; + /* Constant pool symbols addresses are never compared. + flag_merge_constants permits us to assume the same on readonly vars. */ + if (is_a <varpool_node *> (this) + && (DECL_IN_CONSTANT_POOL (decl) + || (flag_merge_constants >= 2 + && TREE_READONLY (decl) && !TREE_THIS_VOLATILE (decl)))) + return false; + return true; +} + /* Get the cgraph_function_version_info node corresponding to node. */ cgraph_function_version_info * cgraph_node::function_version (void) |