3 added set/get_SymConst_type_or_id in irnode.h
4 added field offset to entity in entity.h
5 added field size to type_class in type.h
8 Some changes to make the lib better portable
11 Initialize max_node_nr in irprog.
14 Now outputs warning if faulty type in irdump, dump_type_info.
15 Explicit string termination in irdump, vcg_open.
18 Added external to declaration of irp.
19 Added typedef before pns and pnc_number.
20 irmode.c, init_mode(): We need to memset all new modes as
21 tarval_vrfy reads fields before they are initialized: It
22 compares to min/max when tarvals for min/max are allocated!
25 Changed parameter of Methods in type.h and type.c from
26 class to clss. Class is a C++ keyword.
29 Changed some testprograms to accomodate Uebprakt.
32 Finished implementation of dump_all_types.
33 Added new testprogram inheritance_example.
36 Added seven access routines in type.[hc]:
37 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
38 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
39 Fixed the type_walk_2 for those seven routines.
42 Added irdump routine dump_all_types.
43 Did changes to irprog, type, typewalk to achieve this.
44 typewalk needs to walk along members, sub and supertypes, this
45 is still missing! irdump then needs to output these edges.
47 ======================================================================
48 ==================== New version: 0.2.5 ==============================
49 ======================================================================
52 Made new Version: 0.2.5
54 15.8.2000 Goetz until 3.9.00
55 Separated irnode.h and many others into two files: one public
57 Added funcionality to extract headers for lib.
60 type_dump also dumps irg->ent
61 if_example: corrected nr of locals
64 irgopt: Correct copy of self pointer in start block.
65 irgopt: Correct treatment of loops: pre function in walker
66 breaks all possible loops in Phi and Block nodes.
67 irr_loop_example: wrong Return statement
68 Now I fixed all but one error: in memory_example.
69 This error showed a conceptual problem, so I wrote
70 a slightly different algorithm. This now runs for
72 dead_node_example: cse is buggy!! merges start and the
76 looking at bug in dead_node_elimination.
78 irnode: all get_..._arr functions changed
79 ircons: new_r_Block: set matured flag.
80 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
81 adapted call_str_example to new concepts.
84 Implemented simpler Phi construction algorithm that constructs
85 correct code for three_cfpred_example in ircons. This algorithm
86 generates more Id nodes than the original algorithm and therefore
88 Also made some changes to optimizations of Not.
91 Fixed a bug, caused by the recursive use in type.h and entity.h.
92 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
93 Fixed a problem in if_while testprogram, so it now works.
96 Fixed bug in optimize(). Returned Null instead n if
97 get_optimize() == false.
100 Added some access routines in type.[hc]. Solved a recursive definition
101 of type_class struct, entity struct and type union.
104 Separated entity header into pure functional header and header
108 ... a bunch small changes not documented
111 Changed output of oo_prog_example: now uses the internal list
112 of all irgs. Had to implement some of the access routines for
113 that. Also fixed a bug in irdump. Main routines did not use
114 current_ir_graph properly.
117 Implemented some missing parts in irgopt.
118 Added field irg to entity. Only valid if entity is a method.
119 Had to resove a cyclic de[endency between irgraph.h and entity.h
121 Added fields sub and super to type_class for inheritance.
122 Added field main_irg to irprog.
125 Fixed some bugs in irgopt.c
126 Added some missing 'get_new_node' methods, so the new obstack contains
130 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
131 Solved some copy'n'paste problems. Deleted most debug-code!
132 Added comments to several files.
135 Fixed bug in _r_ constructors for all four Div operations.
136 Fixed bug in turn_into_tuple: didn't remember the block.
137 Tested transform_node.
140 Fixed some testprograms to new semantics of firm.
141 Added testprogram global_var_example.
142 Fixed a bug in irop: Size of Sel node was (entity *) instead of
143 sel_attr. Therefor array_heap_example aborted.
144 Also found a missing break in typewalk, case iro_Alloc.
145 Added a construct that unifies all things constructed by the lib
146 and needed to represent a program: irprog.ch
147 This contains a list of all types as well as a list of all ir graphs.
148 I added calls to initialization and constructors so that this is constructed
149 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
150 Removed strange block struct and constructor from ircons.c.
151 Moved routines for automatic Phi construction from irgmod to ircons.
152 Sorted functions in ircons to reflect the different interfaces.
153 Renamed dataseg to globals to be conformant with documentation.
154 Added conservation of current_ir_graph to irgopt.c.
155 Corrected bug in Makefiles: wrong path to directory ./inlude.
158 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
159 We should change the naming of the Block constructor.
160 Removed acces routines to attr. "closed" of Block.
161 Removed second implementation of new_ir_node from ircons and some comments
162 concerned with the now resolved cyclic dependency.
163 Fixed some bugs in irgopt so that the compilation goes through.
166 Changed the irnode attribut 'visit' into 'visited'.
167 Added some access functions, like get/set_irn_visit etc.
170 Renamed some access funtion in irgraph.*.
171 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
172 Added two attributes to the irgraph struct. The visited flags belongs
173 to a ir graph, not to a whole program.
176 A new optimization has been finished. The dead-node-elimination copies
177 the existing ir graph from one opstack to another. While walking the
178 graph, only the reachable nodes will be copied, so the "dead-nodes"
179 (unreachable in the controlflow) are removed.
182 Solved some problems in the 'copy_node' function. The in array was not
183 as easy as it seamed.
186 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
187 optimization, which is needed in the paramter list of 'irg_walk'.
190 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
191 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
195 Removed some files from the archive, after dependencies and usage are
197 - 'ir/common/strerror.c'
199 - 'ir/ident/xx_ident.h'
200 an empty file, only included by 'ident.c', but never used;
201 - 'ir/tv/label.c' and
203 contained a numeric counter;
204 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
205 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
206 In the old fiasco compiler, the label thing is used in the backend.
207 Search for 'babil' to see the usage.
208 Also removed the two attributes 'lab' and 'used' in the tarval struct.
211 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
212 afterwards some recursive includes, so libfirm works again.
215 Did a lot of changes, which I never commented until now (4.7.00).
217 * Added new result to Start node: Pointer to global data segment.
218 * Extended Semantics of SymConst node to represent information for the
220 * Added arithmeitc nodes (Shrs, Minus ...)
222 Rearranged the directory structure and adjusted the makefiles.
223 The directories contain:
224 ir: everything for the intermediate representation (better: src?)
225 /ir: the ir itself, and standard optimizations.
226 /tv: the target value module
227 /tr: the type and entity representation
228 /adt: abstract data types
229 /common: stuff needed by all other dirs
230 /debug: debugging Unterstuetzung
232 include: external files needen as includes
233 testprograms: examples to test the lib.
235 The makefiles generate files with extension .d that contain the dependencies
239 Added access routine to attribute link of irnode in irnode.ch.
240 Added get_negated_pnc to irnode.ch.
243 Added an iterator in iropt that calls the optimization for all nodes.
244 Copied optimize's code to optimize_in_place and removed deallocations.
245 Made set_irn_n in irnode.c public.
246 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
247 are allowded as cfgpredecessors to represent dead "incoming" control
249 Added call to optimize_in_place in mature_block. Is this useful?
252 Changed tests from comparing enums to comparing pointers. This is more
253 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
254 now get_irn_op == op_And
257 Compared equivalent_value to the one in the original fiasco.
258 Added a test in case iro_And.
259 Changed implementation of iro_Div. Added routines turn_into_tuple
260 and set_irn_op() in irgmod/irnode.
261 Changed implementation of irn_Minus (although commented out).
262 Now all features are ported or documented for this function.
265 Compared computed_value to the one in the original fiasco.
266 Added one further optimization in case iro_Proj.
267 Now all features are ported for this function.
270 Updated comments in ircons.h.
273 Changed possible attribute of SymConst from type_class to type.
274 SymConst size could be the size of a union, array, ...
277 Implemented two dumpers that dump type information and a graph with
281 Implemented a walker that walks over the type informatin that can
282 be reached from an ir node.
283 Added routine get_kind(firm_thing) in common.h, Added file common.c.
284 Added files typewalk.ch and routines to irdump.
285 Added visited flags and initialization to entity and all types.
286 Implemented some of the missing access routines in type.c, entity.c
289 Implemented constructor for ShrA.
291 Added routine that iterates the graph and verifies all nodes.
292 Added Phi_in stack to irgraph. This allows to build several
293 graphs at once with respect to the Phi building algorithm.
296 Implemented dumper for control flow graphs. Changed irr_* and dead_*
297 examples to dump cfg.
300 Implemeted explicit stack for the Phi node generation. See ircons.c.
303 added include string.h in xoprintf.c to get rid of warning:
304 implicit declaration of function `bcopy'
308 Added more cases to equivalent_node.
309 Portet gigo, identify, identify_remember.
310 The set/pset library can not handle several hash tables. At least,
311 compiling several procedures causes a segmentation fault during access
312 to the tables (oo_program_example). Need to work on this.
313 transform_node still needs to be ported.
314 some cases in equivalent_node are still missing.
316 To get it running I had to remove the call to optimize in the
317 new_Block constructor. It can only be called when the Block is
321 Introduced a walker that walks only over blocks. The asserts
322 might be too strict for general graphs, but so far it works.
323 For the walker I introduced an additional flag in the attribute
324 of Blocks, an a global block_visited variable (in irgraph.h).
325 Furhter I modularized dump_ir_node, implemented dump_ir_graph
326 with the existing walker, and added new routines to output a
328 Changed the examples to call the new dump routine.
331 Added auxiliary routines to ir_node:
332 skip_Proj, skip_Nop, is_Bad ...
333 Changed access routines to use get_irn_n instead of explicit array
334 accesses. Changed get_irn_n to call skip_Id, so that the access routines
335 never will return Id nodes.
338 Repaired Phi computation, changed new_r_Phi_in. Added test program to
339 test irregular controlflow.
342 Updated optimizations computed_value and equivalent_node to new
343 Syntax of FIRM nodes and to use access routines.
344 Added routine skip_Proj in irnode.
346 2.2.2000 Boris Boesler
347 Added files irgwalk.c and irgwalk.h. They include a simple function to
348 traverse an ir graph and execute pre and post functions to current node.
351 Added arrays with parameters and result types to the type informtion
352 of a procedure. This is needed for the code generation. Also added
353 the corresponding access routines.
354 Adapted the testprograms.
357 Found a bug / complication: the call order
358 get_value (makes Phi0, put's it into graph_arr)
359 set_value (overwrites Phi0 in graph_arr)
360 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
362 fails. Added test wether graph_arr is already set in phi_merge.
364 Added tons of comments to explain Phi generation -- the stack hack.
368 irdump now outputs the pnc_number for projs of Cmp nodes.
369 Added routine to access the pnc_string.
372 Added result "dataseg" to Start node, with all it's consequences.
373 We need this for the compiler lab to translate global variables.
374 Now they can be selected from the data segment, and the start
375 node supplies the pointer to this segment.
376 These changes are guarded by preprocessor variable UEBPRAKT in
378 Changed files: common.h, irgraph.ch, irnode.h
382 removed array_example, added array-heap_example and
383 array-stack_example and adapted makefile.
385 Entity now also allows type_method as owner. This is to model
386 the stack, Sel nodes that select a variable (array) from the
387 stack need an entity that describes what they select. This
388 entity gets the type of the enclosing procedure as owner.
391 Added future access routines in `irmode.[ch]' as comments,
392 that all attributes in the ir_mode struct can be user-defined.
393 Added access routines in `irgraph.[ch]', for all attributes.
396 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
397 Added `irvrfy.[ch]' to MAKEFILE
398 Added "inline" before access routines in `irnode.h', that no warnings
399 will appear furthermore.
400 Added three more access routines in `irmode.[ch]':
401 struct tarval *get_min_of_mode (ir_mode *mode);
402 struct tarval *get_max_of_mode (ir_mode *mode);
403 struct tarval *get_null_of_mode (ir_mode *mode);
406 Adaption of Alloc, Sel and Entity to new types:
407 Changed array_example to use type instead of type_class.
408 Changed entity to allow all types as owner instead of
409 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
410 Changed alloc to allow allocating variables of any type instead of
412 Adapted all testprograms to avoid warnings.
414 removed dtest ... from Makefile, replaced by test.
417 Added "run" to makefile, added array_example to makefile of testprograms.
418 Corrected testprogram array
419 Changed assert in irvrfy -- Conv.
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