Mercurial > hg > CbC > CbC_gcc
annotate gcc/cgraph.h @ 56:3c8a44c06a95
Added tag gcc-4.4.5 for changeset 77e2b8dfacca
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:41:23 +0900 |
| parents | 77e2b8dfacca |
| children | b7f97abdc517 |
| rev | line source |
|---|---|
| 0 | 1 /* Callgraph handling code. |
|
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2 Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 |
| 0 | 3 Free Software Foundation, Inc. |
| 4 Contributed by Jan Hubicka | |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it under | |
| 9 the terms of the GNU General Public License as published by the Free | |
| 10 Software Foundation; either version 3, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 #ifndef GCC_CGRAPH_H | |
| 23 #define GCC_CGRAPH_H | |
| 24 #include "tree.h" | |
| 25 #include "basic-block.h" | |
| 26 | |
| 27 enum availability | |
| 28 { | |
| 29 /* Not yet set by cgraph_function_body_availability. */ | |
| 30 AVAIL_UNSET, | |
| 31 /* Function body/variable initializer is unknown. */ | |
| 32 AVAIL_NOT_AVAILABLE, | |
| 33 /* Function body/variable initializer is known but might be replaced | |
| 34 by a different one from other compilation unit and thus needs to | |
| 35 be dealt with a care. Like AVAIL_NOT_AVAILABLE it can have | |
| 36 arbitrary side effects on escaping variables and functions, while | |
| 37 like AVAILABLE it might access static variables. */ | |
| 38 AVAIL_OVERWRITABLE, | |
| 39 /* Function body/variable initializer is known and will be used in final | |
| 40 program. */ | |
| 41 AVAIL_AVAILABLE, | |
| 42 /* Function body/variable initializer is known and all it's uses are explicitly | |
| 43 visible within current unit (ie it's address is never taken and it is not | |
| 44 exported to other units). | |
| 45 Currently used only for functions. */ | |
| 46 AVAIL_LOCAL | |
| 47 }; | |
| 48 | |
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49 /* This is the information that is put into the cgraph local structure |
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50 to recover a function. */ |
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51 struct lto_file_decl_data; |
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52 |
| 0 | 53 extern const char * const cgraph_availability_names[]; |
| 54 | |
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55 /* Function inlining information. */ |
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56 |
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57 struct GTY(()) inline_summary |
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58 { |
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59 /* Estimated stack frame consumption by the function. */ |
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60 HOST_WIDE_INT estimated_self_stack_size; |
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61 |
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62 /* Size of the function body. */ |
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63 int self_size; |
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64 /* How many instructions are likely going to disappear after inlining. */ |
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65 int size_inlining_benefit; |
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66 /* Estimated time spent executing the function body. */ |
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67 int self_time; |
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68 /* How much time is going to be saved by inlining. */ |
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69 int time_inlining_benefit; |
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70 }; |
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71 |
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72 /* Information about thunk, used only for same body aliases. */ |
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73 |
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74 struct GTY(()) cgraph_thunk_info { |
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75 /* Information about the thunk. */ |
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76 HOST_WIDE_INT fixed_offset; |
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77 HOST_WIDE_INT virtual_value; |
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78 tree alias; |
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79 bool this_adjusting; |
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80 bool virtual_offset_p; |
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81 /* Set to true when alias node is thunk. */ |
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82 bool thunk_p; |
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83 }; |
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84 |
| 0 | 85 /* Information about the function collected locally. |
| 86 Available after function is analyzed. */ | |
| 87 | |
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88 struct GTY(()) cgraph_local_info { |
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89 /* File stream where this node is being written to. */ |
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90 struct lto_file_decl_data * GTY ((skip)) lto_file_data; |
| 0 | 91 |
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92 struct inline_summary inline_summary; |
| 0 | 93 |
| 94 /* Set when function function is visible in current compilation unit only | |
| 95 and its address is never taken. */ | |
| 96 unsigned local : 1; | |
| 97 | |
| 98 /* Set when function is visible by other units. */ | |
| 99 unsigned externally_visible : 1; | |
| 100 | |
| 101 /* Set once it has been finalized so we consider it to be output. */ | |
| 102 unsigned finalized : 1; | |
| 103 | |
| 104 /* False when there something makes inlining impossible (such as va_arg). */ | |
| 105 unsigned inlinable : 1; | |
| 106 | |
| 107 /* True when function should be inlined independently on its size. */ | |
| 108 unsigned disregard_inline_limits : 1; | |
| 109 | |
| 110 /* True when the function has been originally extern inline, but it is | |
| 111 redefined now. */ | |
| 112 unsigned redefined_extern_inline : 1; | |
| 113 | |
| 114 /* True if statics_read_for_function and | |
| 115 statics_written_for_function contain valid data. */ | |
| 116 unsigned for_functions_valid : 1; | |
| 117 | |
| 118 /* True if the function is going to be emitted in some other translation | |
| 119 unit, referenced from vtable. */ | |
| 120 unsigned vtable_method : 1; | |
| 121 }; | |
| 122 | |
| 123 /* Information about the function that needs to be computed globally | |
| 124 once compilation is finished. Available only with -funit-at-a-time. */ | |
| 125 | |
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126 struct GTY(()) cgraph_global_info { |
| 0 | 127 /* Estimated stack frame consumption by the function. */ |
| 128 HOST_WIDE_INT estimated_stack_size; | |
| 129 /* Expected offset of the stack frame of inlined function. */ | |
| 130 HOST_WIDE_INT stack_frame_offset; | |
| 131 | |
| 132 /* For inline clones this points to the function they will be | |
| 133 inlined into. */ | |
| 134 struct cgraph_node *inlined_to; | |
| 135 | |
| 136 /* Estimated size of the function after inlining. */ | |
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137 int time; |
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138 int size; |
| 0 | 139 |
| 140 /* Estimated growth after inlining. INT_MIN if not computed. */ | |
| 141 int estimated_growth; | |
| 142 | |
| 143 /* Set iff the function has been inlined at least once. */ | |
| 144 bool inlined; | |
| 145 }; | |
| 146 | |
| 147 /* Information about the function that is propagated by the RTL backend. | |
| 148 Available only for functions that has been already assembled. */ | |
| 149 | |
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150 struct GTY(()) cgraph_rtl_info { |
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151 unsigned int preferred_incoming_stack_boundary; |
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152 }; |
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153 |
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154 /* Represent which DECL tree (or reference to such tree) |
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155 will be replaced by another tree while versioning. */ |
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156 struct GTY(()) ipa_replace_map |
| 0 | 157 { |
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158 /* The tree that will be replaced. */ |
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159 tree old_tree; |
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160 /* The new (replacing) tree. */ |
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161 tree new_tree; |
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162 /* True when a substitution should be done, false otherwise. */ |
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163 bool replace_p; |
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164 /* True when we replace a reference to old_tree. */ |
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165 bool ref_p; |
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166 }; |
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167 typedef struct ipa_replace_map *ipa_replace_map_p; |
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168 DEF_VEC_P(ipa_replace_map_p); |
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169 DEF_VEC_ALLOC_P(ipa_replace_map_p,gc); |
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170 |
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171 struct GTY(()) cgraph_clone_info |
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172 { |
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173 VEC(ipa_replace_map_p,gc)* tree_map; |
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174 bitmap args_to_skip; |
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175 bitmap combined_args_to_skip; |
| 0 | 176 }; |
| 177 | |
| 178 /* The cgraph data structure. | |
| 179 Each function decl has assigned cgraph_node listing callees and callers. */ | |
| 180 | |
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181 struct GTY((chain_next ("%h.next"), chain_prev ("%h.previous"))) cgraph_node { |
| 0 | 182 tree decl; |
| 183 struct cgraph_edge *callees; | |
| 184 struct cgraph_edge *callers; | |
| 185 struct cgraph_node *next; | |
| 186 struct cgraph_node *previous; | |
| 187 /* For nested functions points to function the node is nested in. */ | |
| 188 struct cgraph_node *origin; | |
| 189 /* Points to first nested function, if any. */ | |
| 190 struct cgraph_node *nested; | |
| 191 /* Pointer to the next function with same origin, if any. */ | |
| 192 struct cgraph_node *next_nested; | |
| 193 /* Pointer to the next function in cgraph_nodes_queue. */ | |
| 194 struct cgraph_node *next_needed; | |
| 195 /* Pointer to the next clone. */ | |
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196 struct cgraph_node *next_sibling_clone; |
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197 struct cgraph_node *prev_sibling_clone; |
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198 struct cgraph_node *clones; |
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199 struct cgraph_node *clone_of; |
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200 /* For normal nodes pointer to the list of alias and thunk nodes, |
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201 in alias/thunk nodes pointer to the normal node. */ |
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202 struct cgraph_node *same_body; |
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203 /* Circular list of nodes in the same comdat group if non-NULL. */ |
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204 struct cgraph_node *same_comdat_group; |
| 0 | 205 /* For functions with many calls sites it holds map from call expression |
| 206 to the edge to speed up cgraph_edge function. */ | |
| 207 htab_t GTY((param_is (struct cgraph_edge))) call_site_hash; | |
| 208 | |
| 209 PTR GTY ((skip)) aux; | |
| 210 | |
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211 /* Interprocedural passes scheduled to have their transform functions |
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212 applied next time we execute local pass on them. We maintain it |
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213 per-function in order to allow IPA passes to introduce new functions. */ |
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214 VEC(ipa_opt_pass,heap) * GTY((skip)) ipa_transforms_to_apply; |
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215 |
| 0 | 216 struct cgraph_local_info local; |
| 217 struct cgraph_global_info global; | |
| 218 struct cgraph_rtl_info rtl; | |
|
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219 struct cgraph_clone_info clone; |
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220 struct cgraph_thunk_info thunk; |
| 0 | 221 |
| 222 /* Expected number of executions: calculated in profile.c. */ | |
| 223 gcov_type count; | |
| 224 /* Unique id of the node. */ | |
| 225 int uid; | |
| 226 /* Ordering of all cgraph nodes. */ | |
| 227 int order; | |
| 228 | |
| 229 /* unique id for profiling. pid is not suitable because of different | |
| 230 number of cfg nodes with -fprofile-generate and -fprofile-use */ | |
| 231 int pid; | |
| 232 | |
|
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233 /* Set when function must be output for some reason. The primary |
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234 use of this flag is to mark functions needed to be output for |
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235 non-standard reason. Functions that are externally visible |
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236 or reachable from functions needed to be output are marked |
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237 by specialized flags. */ |
| 0 | 238 unsigned needed : 1; |
|
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239 /* Set when function has address taken. |
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240 In current implementation it imply needed flag. */ |
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241 unsigned address_taken : 1; |
| 0 | 242 /* Set when decl is an abstract function pointed to by the |
| 243 ABSTRACT_DECL_ORIGIN of a reachable function. */ | |
| 244 unsigned abstract_and_needed : 1; | |
| 245 /* Set when function is reachable by call from other function | |
|
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246 that is either reachable or needed. |
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247 This flag is computed at original cgraph construction and then |
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248 updated in cgraph_remove_unreachable_nodes. Note that after |
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249 cgraph_remove_unreachable_nodes cgraph still can contain unreachable |
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250 nodes when they are needed for virtual clone instantiation. */ |
| 0 | 251 unsigned reachable : 1; |
| 252 /* Set once the function is lowered (i.e. its CFG is built). */ | |
| 253 unsigned lowered : 1; | |
| 254 /* Set once the function has been instantiated and its callee | |
| 255 lists created. */ | |
| 256 unsigned analyzed : 1; | |
|
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257 /* Set when function is scheduled to be processed by local passes. */ |
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258 unsigned process : 1; |
| 0 | 259 /* Set for aliases once they got through assemble_alias. */ |
| 260 unsigned alias : 1; | |
|
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261 /* Set for nodes that was constructed and finalized by frontend. */ |
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262 unsigned finalized_by_frontend : 1; |
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263 /* Set for alias and thunk nodes, same_body points to the node they are alias |
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264 of and they are linked through the next/previous pointers. */ |
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265 unsigned same_body_alias : 1; |
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266 }; |
| 0 | 267 |
|
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268 typedef struct cgraph_node *cgraph_node_ptr; |
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269 |
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270 DEF_VEC_P(cgraph_node_ptr); |
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271 DEF_VEC_ALLOC_P(cgraph_node_ptr,heap); |
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272 DEF_VEC_ALLOC_P(cgraph_node_ptr,gc); |
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273 |
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274 /* A cgraph node set is a collection of cgraph nodes. A cgraph node |
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275 can appear in multiple sets. */ |
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276 struct GTY(()) cgraph_node_set_def |
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277 { |
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278 htab_t GTY((param_is (struct cgraph_node_set_element_def))) hashtab; |
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279 VEC(cgraph_node_ptr, gc) *nodes; |
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280 PTR GTY ((skip)) aux; |
| 0 | 281 }; |
| 282 | |
|
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283 typedef struct cgraph_node_set_def *cgraph_node_set; |
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284 |
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285 DEF_VEC_P(cgraph_node_set); |
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286 DEF_VEC_ALLOC_P(cgraph_node_set,gc); |
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287 DEF_VEC_ALLOC_P(cgraph_node_set,heap); |
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288 |
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289 /* A cgraph node set element contains an index in the vector of nodes in |
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290 the set. */ |
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291 struct GTY(()) cgraph_node_set_element_def |
| 0 | 292 { |
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293 struct cgraph_node *node; |
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294 HOST_WIDE_INT index; |
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295 }; |
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296 |
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297 typedef struct cgraph_node_set_element_def *cgraph_node_set_element; |
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298 typedef const struct cgraph_node_set_element_def *const_cgraph_node_set_element; |
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299 |
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300 /* Iterator structure for cgraph node sets. */ |
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301 typedef struct |
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302 { |
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303 cgraph_node_set set; |
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304 unsigned index; |
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305 } cgraph_node_set_iterator; |
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306 |
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307 #define DEFCIFCODE(code, string) CIF_ ## code, |
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308 /* Reasons for inlining failures. */ |
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309 typedef enum { |
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310 #include "cif-code.def" |
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311 CIF_N_REASONS |
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312 } cgraph_inline_failed_t; |
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313 |
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314 struct GTY((chain_next ("%h.next_caller"), chain_prev ("%h.prev_caller"))) cgraph_edge { |
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315 /* Expected number of executions: calculated in profile.c. */ |
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316 gcov_type count; |
| 0 | 317 struct cgraph_node *caller; |
| 318 struct cgraph_node *callee; | |
| 319 struct cgraph_edge *prev_caller; | |
| 320 struct cgraph_edge *next_caller; | |
| 321 struct cgraph_edge *prev_callee; | |
| 322 struct cgraph_edge *next_callee; | |
| 323 gimple call_stmt; | |
| 324 PTR GTY ((skip (""))) aux; | |
|
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325 /* When equal to CIF_OK, inline this call. Otherwise, points to the |
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326 explanation why function was not inlined. */ |
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327 cgraph_inline_failed_t inline_failed; |
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328 /* The stmt_uid of call_stmt. This is used by LTO to recover the call_stmt |
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329 when the function is serialized in. */ |
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330 unsigned int lto_stmt_uid; |
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331 /* Expected frequency of executions within the function. |
| 0 | 332 When set to CGRAPH_FREQ_BASE, the edge is expected to be called once |
| 333 per function call. The range is 0 to CGRAPH_FREQ_MAX. */ | |
| 334 int frequency; | |
|
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335 /* Unique id of the edge. */ |
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336 int uid; |
| 0 | 337 /* Depth of loop nest, 1 means no loop nest. */ |
|
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338 unsigned short int loop_nest; |
| 0 | 339 /* Whether this edge describes a call that was originally indirect. */ |
| 340 unsigned int indirect_call : 1; | |
|
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341 /* True if the corresponding CALL stmt cannot be inlined. */ |
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342 unsigned int call_stmt_cannot_inline_p : 1; |
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343 /* Can this call throw externally? */ |
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344 unsigned int can_throw_external : 1; |
| 0 | 345 }; |
| 346 | |
| 347 #define CGRAPH_FREQ_BASE 1000 | |
| 348 #define CGRAPH_FREQ_MAX 100000 | |
| 349 | |
| 350 typedef struct cgraph_edge *cgraph_edge_p; | |
| 351 | |
| 352 DEF_VEC_P(cgraph_edge_p); | |
| 353 DEF_VEC_ALLOC_P(cgraph_edge_p,heap); | |
| 354 | |
| 355 /* The varpool data structure. | |
| 356 Each static variable decl has assigned varpool_node. */ | |
| 357 | |
|
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358 struct GTY((chain_next ("%h.next"))) varpool_node { |
| 0 | 359 tree decl; |
| 360 /* Pointer to the next function in varpool_nodes. */ | |
| 361 struct varpool_node *next; | |
| 362 /* Pointer to the next function in varpool_nodes_queue. */ | |
| 363 struct varpool_node *next_needed; | |
| 364 /* Ordering of all cgraph nodes. */ | |
| 365 int order; | |
| 366 | |
| 367 /* Set when function must be output - it is externally visible | |
| 368 or its address is taken. */ | |
| 369 unsigned needed : 1; | |
| 370 /* Needed variables might become dead by optimization. This flag | |
| 371 forces the variable to be output even if it appears dead otherwise. */ | |
| 372 unsigned force_output : 1; | |
| 373 /* Set once the variable has been instantiated and its callee | |
| 374 lists created. */ | |
| 375 unsigned analyzed : 1; | |
| 376 /* Set once it has been finalized so we consider it to be output. */ | |
| 377 unsigned finalized : 1; | |
| 378 /* Set when variable is scheduled to be assembled. */ | |
| 379 unsigned output : 1; | |
| 380 /* Set when function is visible by other units. */ | |
| 381 unsigned externally_visible : 1; | |
| 382 /* Set for aliases once they got through assemble_alias. */ | |
| 383 unsigned alias : 1; | |
| 384 }; | |
| 385 | |
| 386 /* Every top level asm statement is put into a cgraph_asm_node. */ | |
| 387 | |
|
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388 struct GTY(()) cgraph_asm_node { |
| 0 | 389 /* Next asm node. */ |
| 390 struct cgraph_asm_node *next; | |
| 391 /* String for this asm node. */ | |
| 392 tree asm_str; | |
| 393 /* Ordering of all cgraph nodes. */ | |
| 394 int order; | |
| 395 }; | |
| 396 | |
| 397 extern GTY(()) struct cgraph_node *cgraph_nodes; | |
| 398 extern GTY(()) int cgraph_n_nodes; | |
| 399 extern GTY(()) int cgraph_max_uid; | |
| 400 extern GTY(()) int cgraph_edge_max_uid; | |
| 401 extern GTY(()) int cgraph_max_pid; | |
| 402 extern bool cgraph_global_info_ready; | |
| 403 enum cgraph_state | |
| 404 { | |
| 405 /* Callgraph is being constructed. It is safe to add new functions. */ | |
| 406 CGRAPH_STATE_CONSTRUCTION, | |
| 407 /* Callgraph is built and IPA passes are being run. */ | |
| 408 CGRAPH_STATE_IPA, | |
| 409 /* Callgraph is built and all functions are transformed to SSA form. */ | |
| 410 CGRAPH_STATE_IPA_SSA, | |
| 411 /* Functions are now ordered and being passed to RTL expanders. */ | |
| 412 CGRAPH_STATE_EXPANSION, | |
| 413 /* All cgraph expansion is done. */ | |
| 414 CGRAPH_STATE_FINISHED | |
| 415 }; | |
| 416 extern enum cgraph_state cgraph_state; | |
| 417 extern bool cgraph_function_flags_ready; | |
| 418 extern GTY(()) struct cgraph_node *cgraph_nodes_queue; | |
| 419 extern GTY(()) struct cgraph_node *cgraph_new_nodes; | |
| 420 | |
| 421 extern GTY(()) struct cgraph_asm_node *cgraph_asm_nodes; | |
| 422 extern GTY(()) int cgraph_order; | |
| 423 | |
| 424 /* In cgraph.c */ | |
| 425 void dump_cgraph (FILE *); | |
| 426 void debug_cgraph (void); | |
| 427 void dump_cgraph_node (FILE *, struct cgraph_node *); | |
| 428 void debug_cgraph_node (struct cgraph_node *); | |
| 429 void cgraph_insert_node_to_hashtable (struct cgraph_node *node); | |
| 430 void cgraph_remove_edge (struct cgraph_edge *); | |
| 431 void cgraph_remove_node (struct cgraph_node *); | |
|
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432 void cgraph_remove_node_and_inline_clones (struct cgraph_node *); |
| 0 | 433 void cgraph_release_function_body (struct cgraph_node *); |
| 434 void cgraph_node_remove_callees (struct cgraph_node *node); | |
| 435 struct cgraph_edge *cgraph_create_edge (struct cgraph_node *, | |
| 436 struct cgraph_node *, | |
| 437 gimple, gcov_type, int, int); | |
|
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438 |
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439 struct cgraph_node * cgraph_get_node (tree); |
| 0 | 440 struct cgraph_node *cgraph_node (tree); |
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441 bool cgraph_same_body_alias (tree, tree); |
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442 void cgraph_add_thunk (tree, tree, bool, HOST_WIDE_INT, HOST_WIDE_INT, tree, tree); |
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443 void cgraph_remove_same_body_alias (struct cgraph_node *); |
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444 struct cgraph_node *cgraph_node_for_asm (tree); |
| 0 | 445 struct cgraph_edge *cgraph_edge (struct cgraph_node *, gimple); |
| 446 void cgraph_set_call_stmt (struct cgraph_edge *, gimple); | |
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447 void cgraph_set_call_stmt_including_clones (struct cgraph_node *, gimple, gimple); |
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448 void cgraph_create_edge_including_clones (struct cgraph_node *, |
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449 struct cgraph_node *, |
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450 gimple, gimple, gcov_type, int, int, |
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451 cgraph_inline_failed_t); |
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452 void cgraph_update_edges_for_call_stmt (gimple, tree, gimple); |
| 0 | 453 struct cgraph_local_info *cgraph_local_info (tree); |
| 454 struct cgraph_global_info *cgraph_global_info (tree); | |
| 455 struct cgraph_rtl_info *cgraph_rtl_info (tree); | |
| 456 const char * cgraph_node_name (struct cgraph_node *); | |
| 457 struct cgraph_edge * cgraph_clone_edge (struct cgraph_edge *, | |
|
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458 struct cgraph_node *, gimple, |
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459 unsigned, gcov_type, int, int, bool); |
| 0 | 460 struct cgraph_node * cgraph_clone_node (struct cgraph_node *, gcov_type, int, |
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461 int, bool, VEC(cgraph_edge_p,heap) *); |
| 0 | 462 |
| 463 void cgraph_redirect_edge_callee (struct cgraph_edge *, struct cgraph_node *); | |
| 464 | |
| 465 struct cgraph_asm_node *cgraph_add_asm_node (tree); | |
| 466 | |
| 467 bool cgraph_function_possibly_inlined_p (tree); | |
| 468 void cgraph_unnest_node (struct cgraph_node *); | |
| 469 | |
| 470 enum availability cgraph_function_body_availability (struct cgraph_node *); | |
| 471 void cgraph_add_new_function (tree, bool); | |
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472 const char* cgraph_inline_failed_string (cgraph_inline_failed_t); |
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473 struct cgraph_node * cgraph_create_virtual_clone (struct cgraph_node *old_node, |
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474 VEC(cgraph_edge_p,heap)*, |
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475 VEC(ipa_replace_map_p,gc)* tree_map, |
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476 bitmap args_to_skip); |
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477 |
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478 void cgraph_set_nothrow_flag (struct cgraph_node *, bool); |
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479 void cgraph_set_readonly_flag (struct cgraph_node *, bool); |
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480 void cgraph_set_pure_flag (struct cgraph_node *, bool); |
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481 void cgraph_set_looping_const_or_pure_flag (struct cgraph_node *, bool); |
| 0 | 482 |
| 483 /* In cgraphunit.c */ | |
| 484 void cgraph_finalize_function (tree, bool); | |
| 485 void cgraph_mark_if_needed (tree); | |
| 486 void cgraph_finalize_compilation_unit (void); | |
| 487 void cgraph_optimize (void); | |
| 488 void cgraph_mark_needed_node (struct cgraph_node *); | |
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489 void cgraph_mark_address_taken_node (struct cgraph_node *); |
| 0 | 490 void cgraph_mark_reachable_node (struct cgraph_node *); |
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491 bool cgraph_inline_p (struct cgraph_edge *, cgraph_inline_failed_t *reason); |
| 0 | 492 bool cgraph_preserve_function_body_p (tree); |
| 493 void verify_cgraph (void); | |
| 494 void verify_cgraph_node (struct cgraph_node *); | |
| 495 void cgraph_build_static_cdtor (char which, tree body, int priority); | |
| 496 void cgraph_reset_static_var_maps (void); | |
| 497 void init_cgraph (void); | |
| 498 struct cgraph_node *cgraph_function_versioning (struct cgraph_node *, | |
| 499 VEC(cgraph_edge_p,heap)*, | |
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500 VEC(ipa_replace_map_p,gc)*, |
| 0 | 501 bitmap); |
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502 void tree_function_versioning (tree, tree, VEC (ipa_replace_map_p,gc)*, bool, bitmap); |
| 0 | 503 struct cgraph_node *save_inline_function_body (struct cgraph_node *); |
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504 void record_references_in_initializer (tree, bool); |
| 0 | 505 bool cgraph_process_new_functions (void); |
| 506 | |
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507 bool cgraph_decide_is_function_needed (struct cgraph_node *, tree); |
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508 |
| 0 | 509 typedef void (*cgraph_edge_hook)(struct cgraph_edge *, void *); |
| 510 typedef void (*cgraph_node_hook)(struct cgraph_node *, void *); | |
| 511 typedef void (*cgraph_2edge_hook)(struct cgraph_edge *, struct cgraph_edge *, | |
| 512 void *); | |
| 513 typedef void (*cgraph_2node_hook)(struct cgraph_node *, struct cgraph_node *, | |
| 514 void *); | |
| 515 struct cgraph_edge_hook_list; | |
| 516 struct cgraph_node_hook_list; | |
| 517 struct cgraph_2edge_hook_list; | |
| 518 struct cgraph_2node_hook_list; | |
| 519 struct cgraph_edge_hook_list *cgraph_add_edge_removal_hook (cgraph_edge_hook, void *); | |
| 520 void cgraph_remove_edge_removal_hook (struct cgraph_edge_hook_list *); | |
| 521 struct cgraph_node_hook_list *cgraph_add_node_removal_hook (cgraph_node_hook, | |
| 522 void *); | |
| 523 void cgraph_remove_node_removal_hook (struct cgraph_node_hook_list *); | |
| 524 struct cgraph_node_hook_list *cgraph_add_function_insertion_hook (cgraph_node_hook, | |
| 525 void *); | |
| 526 void cgraph_remove_function_insertion_hook (struct cgraph_node_hook_list *); | |
| 527 void cgraph_call_function_insertion_hooks (struct cgraph_node *node); | |
| 528 struct cgraph_2edge_hook_list *cgraph_add_edge_duplication_hook (cgraph_2edge_hook, void *); | |
| 529 void cgraph_remove_edge_duplication_hook (struct cgraph_2edge_hook_list *); | |
| 530 struct cgraph_2node_hook_list *cgraph_add_node_duplication_hook (cgraph_2node_hook, void *); | |
| 531 void cgraph_remove_node_duplication_hook (struct cgraph_2node_hook_list *); | |
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532 void cgraph_materialize_all_clones (void); |
| 0 | 533 |
| 534 /* In cgraphbuild.c */ | |
| 535 unsigned int rebuild_cgraph_edges (void); | |
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536 void reset_inline_failed (struct cgraph_node *); |
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537 int compute_call_stmt_bb_frequency (tree, basic_block bb); |
| 0 | 538 |
| 539 /* In ipa.c */ | |
| 540 bool cgraph_remove_unreachable_nodes (bool, FILE *); | |
| 541 int cgraph_postorder (struct cgraph_node **); | |
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542 cgraph_node_set cgraph_node_set_new (void); |
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543 cgraph_node_set_iterator cgraph_node_set_find (cgraph_node_set, |
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544 struct cgraph_node *); |
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545 void cgraph_node_set_add (cgraph_node_set, struct cgraph_node *); |
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546 void cgraph_node_set_remove (cgraph_node_set, struct cgraph_node *); |
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547 void dump_cgraph_node_set (FILE *, cgraph_node_set); |
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548 void debug_cgraph_node_set (cgraph_node_set); |
| 0 | 549 |
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550 |
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551 /* In predict.c */ |
| 0 | 552 bool cgraph_maybe_hot_edge_p (struct cgraph_edge *e); |
| 553 | |
| 554 /* In varpool.c */ | |
| 555 extern GTY(()) struct varpool_node *varpool_nodes_queue; | |
| 556 extern GTY(()) struct varpool_node *varpool_nodes; | |
| 557 | |
| 558 struct varpool_node *varpool_node (tree); | |
| 559 struct varpool_node *varpool_node_for_asm (tree asmname); | |
| 560 void varpool_mark_needed_node (struct varpool_node *); | |
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561 void debug_varpool (void); |
| 0 | 562 void dump_varpool (FILE *); |
| 563 void dump_varpool_node (FILE *, struct varpool_node *); | |
| 564 | |
| 565 void varpool_finalize_decl (tree); | |
| 566 bool decide_is_variable_needed (struct varpool_node *, tree); | |
| 567 enum availability cgraph_variable_initializer_availability (struct varpool_node *); | |
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568 void cgraph_make_node_local (struct cgraph_node *); |
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569 bool cgraph_node_can_be_local_p (struct cgraph_node *); |
| 0 | 570 |
| 571 bool varpool_assemble_pending_decls (void); | |
| 572 bool varpool_assemble_decl (struct varpool_node *node); | |
| 573 bool varpool_analyze_pending_decls (void); | |
| 574 void varpool_remove_unreferenced_decls (void); | |
| 575 void varpool_empty_needed_queue (void); | |
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576 const char * varpool_node_name (struct varpool_node *node); |
| 0 | 577 |
| 578 /* Walk all reachable static variables. */ | |
| 579 #define FOR_EACH_STATIC_VARIABLE(node) \ | |
| 580 for ((node) = varpool_nodes_queue; (node); (node) = (node)->next_needed) | |
| 581 | |
| 582 /* Return first reachable static variable with initializer. */ | |
| 583 static inline struct varpool_node * | |
| 584 varpool_first_static_initializer (void) | |
| 585 { | |
| 586 struct varpool_node *node; | |
| 587 for (node = varpool_nodes_queue; node; node = node->next_needed) | |
| 588 { | |
| 589 gcc_assert (TREE_CODE (node->decl) == VAR_DECL); | |
| 590 if (DECL_INITIAL (node->decl)) | |
| 591 return node; | |
| 592 } | |
| 593 return NULL; | |
| 594 } | |
| 595 | |
| 596 /* Return next reachable static variable with initializer after NODE. */ | |
| 597 static inline struct varpool_node * | |
| 598 varpool_next_static_initializer (struct varpool_node *node) | |
| 599 { | |
| 600 for (node = node->next_needed; node; node = node->next_needed) | |
| 601 { | |
| 602 gcc_assert (TREE_CODE (node->decl) == VAR_DECL); | |
| 603 if (DECL_INITIAL (node->decl)) | |
| 604 return node; | |
| 605 } | |
| 606 return NULL; | |
| 607 } | |
| 608 | |
| 609 /* Walk all static variables with initializer set. */ | |
| 610 #define FOR_EACH_STATIC_INITIALIZER(node) \ | |
| 611 for ((node) = varpool_first_static_initializer (); (node); \ | |
| 612 (node) = varpool_next_static_initializer (node)) | |
| 613 | |
| 614 /* In ipa-inline.c */ | |
| 615 void cgraph_clone_inlined_nodes (struct cgraph_edge *, bool, bool); | |
| 616 unsigned int compute_inline_parameters (struct cgraph_node *); | |
| 617 | |
| 618 | |
| 619 /* Create a new static variable of type TYPE. */ | |
| 620 tree add_new_static_var (tree type); | |
| 621 | |
|
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622 /* lto-cgraph.c */ |
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623 |
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624 enum LTO_cgraph_tags |
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625 { |
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626 /* Must leave 0 for the stopper. */ |
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627 LTO_cgraph_avail_node = 1, |
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628 LTO_cgraph_overwritable_node, |
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629 LTO_cgraph_unavail_node, |
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630 LTO_cgraph_edge, |
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631 LTO_cgraph_last_tag |
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632 }; |
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633 |
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634 extern const char * LTO_cgraph_tag_names[LTO_cgraph_last_tag]; |
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635 |
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636 #define LCC_NOT_FOUND (-1) |
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637 |
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638 |
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639 /* Return true if iterator CSI points to nothing. */ |
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640 static inline bool |
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641 csi_end_p (cgraph_node_set_iterator csi) |
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642 { |
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643 return csi.index >= VEC_length (cgraph_node_ptr, csi.set->nodes); |
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644 } |
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645 |
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646 /* Advance iterator CSI. */ |
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647 static inline void |
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648 csi_next (cgraph_node_set_iterator *csi) |
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649 { |
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650 csi->index++; |
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651 } |
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652 |
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653 /* Return the node pointed to by CSI. */ |
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654 static inline struct cgraph_node * |
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655 csi_node (cgraph_node_set_iterator csi) |
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656 { |
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657 return VEC_index (cgraph_node_ptr, csi.set->nodes, csi.index); |
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658 } |
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659 |
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660 /* Return an iterator to the first node in SET. */ |
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661 static inline cgraph_node_set_iterator |
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662 csi_start (cgraph_node_set set) |
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663 { |
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664 cgraph_node_set_iterator csi; |
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665 |
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666 csi.set = set; |
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667 csi.index = 0; |
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668 return csi; |
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669 } |
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670 |
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671 /* Return true if SET contains NODE. */ |
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672 static inline bool |
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673 cgraph_node_in_set_p (struct cgraph_node *node, cgraph_node_set set) |
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674 { |
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675 cgraph_node_set_iterator csi; |
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676 csi = cgraph_node_set_find (set, node); |
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677 return !csi_end_p (csi); |
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678 } |
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679 |
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680 /* Return number of nodes in SET. */ |
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681 static inline size_t |
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682 cgraph_node_set_size (cgraph_node_set set) |
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683 { |
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684 return htab_elements (set->hashtab); |
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685 } |
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686 |
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687 /* Uniquize all constants that appear in memory. |
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688 Each constant in memory thus far output is recorded |
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689 in `const_desc_table'. */ |
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690 |
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691 struct GTY(()) constant_descriptor_tree { |
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692 /* A MEM for the constant. */ |
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693 rtx rtl; |
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694 |
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695 /* The value of the constant. */ |
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696 tree value; |
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697 |
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698 /* Hash of value. Computing the hash from value each time |
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699 hashfn is called can't work properly, as that means recursive |
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700 use of the hash table during hash table expansion. */ |
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701 hashval_t hash; |
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702 }; |
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703 |
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704 /* Return true when function NODE is only called directly. |
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705 i.e. it is not externally visible, address was not taken and |
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706 it is not used in any other non-standard way. */ |
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707 |
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708 static inline bool |
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709 cgraph_only_called_directly_p (struct cgraph_node *node) |
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710 { |
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711 return !node->needed && !node->local.externally_visible; |
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712 } |
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713 |
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714 /* Return true when function NODE can be removed from callgraph |
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715 if all direct calls are eliminated. */ |
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716 |
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717 static inline bool |
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718 cgraph_can_remove_if_no_direct_calls_p (struct cgraph_node *node) |
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719 { |
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720 return (!node->needed |
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721 && (DECL_COMDAT (node->decl) || !node->local.externally_visible)); |
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722 } |
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723 |
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724 /* Constant pool accessor function. */ |
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725 htab_t constant_pool_htab (void); |
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726 |
| 0 | 727 #endif /* GCC_CGRAPH_H */ |