diff options
Diffstat (limited to 'gcc/cgraph.h')
| -rw-r--r-- | gcc/cgraph.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/gcc/cgraph.h b/gcc/cgraph.h index 96e382a4a43..9406e090f33 100644 --- a/gcc/cgraph.h +++ b/gcc/cgraph.h @@ -24,6 +24,28 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include "tree.h" #include "basic-block.h" +enum availability +{ + /* Not yet set by cgraph_function_body_availability. */ + AVAIL_UNSET, + /* Function body/variable initializer is unknown. */ + AVAIL_NOT_AVAILABLE, + /* Function body/variable initializer is known but might be replaced + by a different one from other compilation unit and thus needs to + be dealt with a care. Like AVAIL_NOT_AVAILABLE it can have + arbitrary side effects on escaping variables and functions, while + like AVAILABLE it might access static variables. */ + AVAIL_OVERWRITABLE, + /* Function body/variable initializer is known and will be used in final + program. */ + AVAIL_AVAILABLE, + /* Function body/variable initializer is known and all it's uses are explicitly + visible within current unit (ie it's address is never taken and it is not + exported to other units). + Currently used only for functions. */ + AVAIL_LOCAL +}; + /* Information about the function collected locally. Available after function is analyzed. */ @@ -110,6 +132,10 @@ struct cgraph_node GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) /* Pointer to the next clone. */ struct cgraph_node *next_clone; struct cgraph_node *prev_clone; + /* Pointer to a single unique cgraph node for this function. If the + function is to be output, this is the copy that will survive. */ + struct cgraph_node *master_clone; + PTR GTY ((skip)) aux; struct cgraph_local_info local; @@ -178,7 +204,7 @@ struct cgraph_varpool_node GTY(()) bool analyzed; /* Set once it has been finalized so we consider it to be output. */ bool finalized; - /* Set when function is scheduled to be assembled. */ + /* Set when variable is scheduled to be assembled. */ bool output; /* Set when function is visible by other units. */ bool externally_visible; @@ -229,6 +255,11 @@ void cgraph_varpool_enqueue_needed_node (struct cgraph_varpool_node *); void cgraph_varpool_reset_queue (void); bool decide_is_variable_needed (struct cgraph_varpool_node *, tree); +enum availability cgraph_function_body_availability (struct cgraph_node *); +enum availability cgraph_variable_initializer_availability (struct cgraph_varpool_node *); +bool cgraph_is_master_clone (struct cgraph_node *); +struct cgraph_node *cgraph_master_clone (struct cgraph_node *); + /* In cgraphunit.c */ bool cgraph_assemble_pending_functions (void); bool cgraph_varpool_assemble_pending_decls (void); |