From 3c56f697e112c79fb5457538fdc373e348beca24 Mon Sep 17 00:00:00 2001 From: Andrew Hsieh Date: Thu, 8 Nov 2012 09:43:39 -0800 Subject: Initial checkin of unmodified gcc-5666.3.tar.gz This is the source to build gcc-4.2 for MacOSX gcc version 4.2.1 (Apple Inc. build 5666) (dot 3) http://opensource.apple.com/tarballs/gcc/gcc-5666.3.tar.gz Change-Id: I69540223f018e9d07f861fca04bd3833fc138f8b --- gcc-4.2.1-5666.3/gcc/cgraph.h | 336 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 336 insertions(+) create mode 100644 gcc-4.2.1-5666.3/gcc/cgraph.h (limited to 'gcc-4.2.1-5666.3/gcc/cgraph.h') diff --git a/gcc-4.2.1-5666.3/gcc/cgraph.h b/gcc-4.2.1-5666.3/gcc/cgraph.h new file mode 100644 index 000000000..1e208ded9 --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/cgraph.h @@ -0,0 +1,336 @@ +/* Callgraph handling code. + Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc. + Contributed by Jan Hubicka + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 2, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING. If not, write to the Free +Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301, USA. */ + +#ifndef GCC_CGRAPH_H +#define GCC_CGRAPH_H +#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. */ + +struct cgraph_local_info GTY(()) +{ + /* Size of the function before inlining. */ + int self_insns; + + /* Set when function function is visible in current compilation unit only + and its address is never taken. */ + unsigned local : 1; + + /* Set when function is visible by other units. */ + unsigned externally_visible : 1; + + /* Set once it has been finalized so we consider it to be output. */ + unsigned finalized : 1; + + /* False when there something makes inlining impossible (such as va_arg). */ + unsigned inlinable : 1; + + /* True when function should be inlined independently on its size. */ + unsigned disregard_inline_limits : 1; + + /* True when the function has been originally extern inline, but it is + redefined now. */ + unsigned redefined_extern_inline : 1; + + /* True if statics_read_for_function and + statics_written_for_function contain valid data. */ + unsigned for_functions_valid : 1; + + /* True if the function is going to be emitted in some other translation + unit, referenced from vtable. */ + unsigned vtable_method : 1; +}; + +/* Information about the function that needs to be computed globally + once compilation is finished. Available only with -funit-at-time. */ + +struct cgraph_global_info GTY(()) +{ + /* For inline clones this points to the function they will be inlined into. */ + struct cgraph_node *inlined_to; + + /* Estimated size of the function after inlining. */ + int insns; + + /* Estimated growth after inlining. INT_MIN if not computed. */ + int estimated_growth; + + /* Set iff the function has been inlined at least once. */ + bool inlined; +}; + +/* Information about the function that is propagated by the RTL backend. + Available only for functions that has been already assembled. */ + +struct cgraph_rtl_info GTY(()) +{ + int preferred_incoming_stack_boundary; +}; + +/* The cgraph data structure. + Each function decl has assigned cgraph_node listing callees and callers. */ + +struct cgraph_node GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) +{ + tree decl; + struct cgraph_edge *callees; + struct cgraph_edge *callers; + struct cgraph_node *next; + struct cgraph_node *previous; + /* For nested functions points to function the node is nested in. */ + struct cgraph_node *origin; + /* Points to first nested function, if any. */ + struct cgraph_node *nested; + /* Pointer to the next function with same origin, if any. */ + struct cgraph_node *next_nested; + /* Pointer to the next function in cgraph_nodes_queue. */ + struct cgraph_node *next_needed; + /* 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; + /* For functions with many calls sites it holds map from call expression + to the edge to speed up cgraph_edge function. */ + htab_t GTY((param_is (struct cgraph_edge))) call_site_hash; + + PTR GTY ((skip)) aux; + + struct cgraph_local_info local; + struct cgraph_global_info global; + struct cgraph_rtl_info rtl; + + /* Expected number of executions: calculated in profile.c. */ + gcov_type count; + /* Unique id of the node. */ + int uid; + /* Ordering of all cgraph nodes. */ + int order; + + /* Set when function must be output - it is externally visible + or its address is taken. */ + unsigned needed : 1; + /* Set when function is reachable by call from other function + that is either reachable or needed. */ + unsigned reachable : 1; + /* Set once the function is lowered (i.e. its CFG is built). */ + unsigned lowered : 1; + /* Set once the function has been instantiated and its callee + lists created. */ + unsigned analyzed : 1; + /* Set when function is scheduled to be assembled. */ + unsigned output : 1; + /* Set for aliases once they got through assemble_alias. */ + unsigned alias : 1; + + /* In non-unit-at-a-time mode the function body of inline candidates is saved + into clone before compiling so the function in original form can be + inlined later. This pointer points to the clone. */ + tree inline_decl; +}; + +struct cgraph_edge GTY((chain_next ("%h.next_caller"), chain_prev ("%h.prev_caller"))) +{ + struct cgraph_node *caller; + struct cgraph_node *callee; + struct cgraph_edge *prev_caller; + struct cgraph_edge *next_caller; + struct cgraph_edge *prev_callee; + struct cgraph_edge *next_callee; + tree call_stmt; + PTR GTY ((skip (""))) aux; + /* When NULL, inline this call. When non-NULL, points to the explanation + why function was not inlined. */ + const char *inline_failed; + /* Expected number of executions: calculated in profile.c. */ + gcov_type count; + /* Depth of loop nest, 1 means no loop nest. */ + int loop_nest; +}; + +typedef struct cgraph_edge *cgraph_edge_p; + +DEF_VEC_P(cgraph_edge_p); +DEF_VEC_ALLOC_P(cgraph_edge_p,heap); + +/* The cgraph_varpool data structure. + Each static variable decl has assigned cgraph_varpool_node. */ + +struct cgraph_varpool_node GTY(()) +{ + tree decl; + /* Pointer to the next function in cgraph_varpool_nodes. */ + struct cgraph_varpool_node *next; + /* Pointer to the next function in cgraph_varpool_nodes_queue. */ + struct cgraph_varpool_node *next_needed; + /* Ordering of all cgraph nodes. */ + int order; + + /* Set when function must be output - it is externally visible + or its address is taken. */ + unsigned needed : 1; + /* Needed variables might become dead by optimization. This flag + forces the variable to be output even if it appears dead otherwise. */ + unsigned force_output : 1; + /* Set once the variable has been instantiated and its callee + lists created. */ + unsigned analyzed : 1; + /* Set once it has been finalized so we consider it to be output. */ + unsigned finalized : 1; + /* Set when variable is scheduled to be assembled. */ + unsigned output : 1; + /* Set when function is visible by other units. */ + unsigned externally_visible : 1; + /* Set for aliases once they got through assemble_alias. */ + unsigned alias : 1; +}; + +/* Every top level asm statement is put into a cgraph_asm_node. */ + +struct cgraph_asm_node GTY(()) +{ + /* Next asm node. */ + struct cgraph_asm_node *next; + /* String for this asm node. */ + tree asm_str; + /* Ordering of all cgraph nodes. */ + int order; +}; + +extern GTY(()) struct cgraph_node *cgraph_nodes; +extern GTY(()) int cgraph_n_nodes; +extern GTY(()) int cgraph_max_uid; +extern bool cgraph_global_info_ready; +extern bool cgraph_function_flags_ready; +extern GTY(()) struct cgraph_node *cgraph_nodes_queue; +extern GTY(()) struct cgraph_node *cgraph_expand_queue; + +extern GTY(()) struct cgraph_varpool_node *cgraph_varpool_first_unanalyzed_node; +extern GTY(()) struct cgraph_varpool_node *cgraph_varpool_last_needed_node; +extern GTY(()) struct cgraph_varpool_node *cgraph_varpool_nodes_queue; +extern GTY(()) struct cgraph_varpool_node *cgraph_varpool_nodes; +extern GTY(()) struct cgraph_asm_node *cgraph_asm_nodes; +extern GTY(()) int cgraph_order; + +/* In cgraph.c */ +void dump_cgraph (FILE *); +void dump_cgraph_node (FILE *, struct cgraph_node *); +void cgraph_insert_node_to_hashtable (struct cgraph_node *node); +void dump_varpool (FILE *); +void dump_cgraph_varpool_node (FILE *, struct cgraph_varpool_node *); +void cgraph_remove_edge (struct cgraph_edge *); +void cgraph_remove_node (struct cgraph_node *); +void cgraph_node_remove_callees (struct cgraph_node *node); +struct cgraph_edge *cgraph_create_edge (struct cgraph_node *, + struct cgraph_node *, + tree, gcov_type, int); +struct cgraph_node *cgraph_node (tree); +struct cgraph_node *cgraph_node_for_asm (tree asmname); +struct cgraph_edge *cgraph_edge (struct cgraph_node *, tree); +void cgraph_set_call_stmt (struct cgraph_edge *, tree); +struct cgraph_local_info *cgraph_local_info (tree); +struct cgraph_global_info *cgraph_global_info (tree); +struct cgraph_rtl_info *cgraph_rtl_info (tree); +const char * cgraph_node_name (struct cgraph_node *); +struct cgraph_edge * cgraph_clone_edge (struct cgraph_edge *, + struct cgraph_node *, + tree, gcov_type, int, bool); +struct cgraph_node * cgraph_clone_node (struct cgraph_node *, gcov_type, + int, bool); + +struct cgraph_varpool_node *cgraph_varpool_node (tree); +struct cgraph_varpool_node *cgraph_varpool_node_for_asm (tree asmname); +void cgraph_varpool_mark_needed_node (struct cgraph_varpool_node *); +void cgraph_varpool_finalize_decl (tree); +void cgraph_redirect_edge_callee (struct cgraph_edge *, struct cgraph_node *); + +struct cgraph_asm_node *cgraph_add_asm_node (tree); + +bool cgraph_function_possibly_inlined_p (tree); +void cgraph_unnest_node (struct cgraph_node *); +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 *); +void cgraph_add_new_function (tree); + +/* In cgraphunit.c */ +/* APPLE LOCAL radar 6305545 */ +void lower_if_nested_functions (tree); +bool cgraph_assemble_pending_functions (void); +bool cgraph_varpool_assemble_pending_decls (void); +void cgraph_finalize_function (tree, bool); +void cgraph_finalize_compilation_unit (void); +void cgraph_optimize (void); +void cgraph_mark_needed_node (struct cgraph_node *); +void cgraph_mark_reachable_node (struct cgraph_node *); +bool cgraph_inline_p (struct cgraph_edge *, const char **reason); +bool cgraph_preserve_function_body_p (tree); +void verify_cgraph (void); +void verify_cgraph_node (struct cgraph_node *); +void cgraph_build_static_cdtor (char which, tree body, int priority); +void cgraph_reset_static_var_maps (void); +void init_cgraph (void); +struct cgraph_node *cgraph_function_versioning (struct cgraph_node *, + VEC(cgraph_edge_p,heap)*, + varray_type); +void cgraph_analyze_function (struct cgraph_node *); +struct cgraph_node *save_inline_function_body (struct cgraph_node *); + +/* In ipa.c */ +bool cgraph_remove_unreachable_nodes (bool, FILE *); +int cgraph_postorder (struct cgraph_node **); + +/* In ipa-inline.c */ +bool cgraph_decide_inlining_incrementally (struct cgraph_node *, bool); +void cgraph_clone_inlined_nodes (struct cgraph_edge *, bool, bool); +void cgraph_mark_inline_edge (struct cgraph_edge *, bool); +bool cgraph_default_inline_p (struct cgraph_node *, const char **); +#endif /* GCC_CGRAPH_H */ -- cgit v1.2.3