2 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
3 Added a module deb_info in debug.h. Adapted makefile. Added example
5 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
7 Removed inabled code for dead node elimination in irgopt.h.
8 Renamed some missnamed access routines (_of_). Macros with old names
10 Edited makefiles to remove #* and *.flc.
13 Some minor bugfixes...
16 After compacting of in arrays in dead_node_elimination
17 merge blocks and remove Phis with one pred.
20 Freeing of obstack in dead_node_elimination commented in.
21 Compacting in arrays of Block and Phi nodes in dead_node_
26 added set/get_SymConst_type_or_id in irnode.h
27 added field offset to entity in entity.h
28 added field size to type_class in type.h
29 include "gmp.h" in tv.h with "" instead <>
32 Some changes to make the lib better portable
35 Initialize max_node_nr in irprog.
38 Now outputs warning if faulty type in irdump, dump_type_info.
39 Explicit string termination in irdump, vcg_open.
42 Added external to declaration of irp.
43 Added typedef before pns and pnc_number.
44 irmode.c, init_mode(): We need to memset all new modes as
45 tarval_vrfy reads fields before they are initialized: It
46 compares to min/max when tarvals for min/max are allocated!
49 Changed parameter of Methods in type.h and type.c from
50 class to clss. Class is a C++ keyword.
53 Changed some testprograms to accomodate Uebprakt.
56 Finished implementation of dump_all_types.
57 Added new testprogram inheritance_example.
60 Added seven access routines in type.[hc]:
61 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
62 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
63 Fixed the type_walk_2 for those seven routines.
66 Added irdump routine dump_all_types.
67 Did changes to irprog, type, typewalk to achieve this.
68 typewalk needs to walk along members, sub and supertypes, this
69 is still missing! irdump then needs to output these edges.
71 ======================================================================
72 ==================== New version: 0.2.5 ==============================
73 ======================================================================
76 Made new Version: 0.2.5
78 15.8.2000 Goetz until 3.9.00
79 Separated irnode.h and many others into two files: one public
81 Added funcionality to extract headers for lib.
84 type_dump also dumps irg->ent
85 if_example: corrected nr of locals
88 irgopt: Correct copy of self pointer in start block.
89 irgopt: Correct treatment of loops: pre function in walker
90 breaks all possible loops in Phi and Block nodes.
91 irr_loop_example: wrong Return statement
92 Now I fixed all but one error: in memory_example.
93 This error showed a conceptual problem, so I wrote
94 a slightly different algorithm. This now runs for
96 dead_node_example: cse is buggy!! merges start and the
100 looking at bug in dead_node_elimination.
102 irnode: all get_..._arr functions changed
103 ircons: new_r_Block: set matured flag.
104 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
105 adapted call_str_example to new concepts.
108 Implemented simpler Phi construction algorithm that constructs
109 correct code for three_cfpred_example in ircons. This algorithm
110 generates more Id nodes than the original algorithm and therefore
112 Also made some changes to optimizations of Not.
115 Fixed a bug, caused by the recursive use in type.h and entity.h.
116 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
117 Fixed a problem in if_while testprogram, so it now works.
120 Fixed bug in optimize(). Returned Null instead n if
121 get_optimize() == false.
124 Added some access routines in type.[hc]. Solved a recursive definition
125 of type_class struct, entity struct and type union.
128 Separated entity header into pure functional header and header
132 ... a bunch small changes not documented
135 Changed output of oo_prog_example: now uses the internal list
136 of all irgs. Had to implement some of the access routines for
137 that. Also fixed a bug in irdump. Main routines did not use
138 current_ir_graph properly.
141 Implemented some missing parts in irgopt.
142 Added field irg to entity. Only valid if entity is a method.
143 Had to resove a cyclic de[endency between irgraph.h and entity.h
145 Added fields sub and super to type_class for inheritance.
146 Added field main_irg to irprog.
149 Fixed some bugs in irgopt.c
150 Added some missing 'get_new_node' methods, so the new obstack contains
154 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
155 Solved some copy'n'paste problems. Deleted most debug-code!
156 Added comments to several files.
159 Fixed bug in _r_ constructors for all four Div operations.
160 Fixed bug in turn_into_tuple: didn't remember the block.
161 Tested transform_node.
164 Fixed some testprograms to new semantics of firm.
165 Added testprogram global_var_example.
166 Fixed a bug in irop: Size of Sel node was (entity *) instead of
167 sel_attr. Therefor array_heap_example aborted.
168 Also found a missing break in typewalk, case iro_Alloc.
169 Added a construct that unifies all things constructed by the lib
170 and needed to represent a program: irprog.ch
171 This contains a list of all types as well as a list of all ir graphs.
172 I added calls to initialization and constructors so that this is constructed
173 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
174 Removed strange block struct and constructor from ircons.c.
175 Moved routines for automatic Phi construction from irgmod to ircons.
176 Sorted functions in ircons to reflect the different interfaces.
177 Renamed dataseg to globals to be conformant with documentation.
178 Added conservation of current_ir_graph to irgopt.c.
179 Corrected bug in Makefiles: wrong path to directory ./inlude.
182 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
183 We should change the naming of the Block constructor.
184 Removed acces routines to attr. "closed" of Block.
185 Removed second implementation of new_ir_node from ircons and some comments
186 concerned with the now resolved cyclic dependency.
187 Fixed some bugs in irgopt so that the compilation goes through.
190 Changed the irnode attribut 'visit' into 'visited'.
191 Added some access functions, like get/set_irn_visit etc.
194 Renamed some access funtion in irgraph.*.
195 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
196 Added two attributes to the irgraph struct. The visited flags belongs
197 to a ir graph, not to a whole program.
200 A new optimization has been finished. The dead-node-elimination copies
201 the existing ir graph from one opstack to another. While walking the
202 graph, only the reachable nodes will be copied, so the "dead-nodes"
203 (unreachable in the controlflow) are removed.
206 Solved some problems in the 'copy_node' function. The in array was not
207 as easy as it seamed.
210 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
211 optimization, which is needed in the paramter list of 'irg_walk'.
214 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
215 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
219 Removed some files from the archive, after dependencies and usage are
221 - 'ir/common/strerror.c'
223 - 'ir/ident/xx_ident.h'
224 an empty file, only included by 'ident.c', but never used;
225 - 'ir/tv/label.c' and
227 contained a numeric counter;
228 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
229 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
230 In the old fiasco compiler, the label thing is used in the backend.
231 Search for 'babil' to see the usage.
232 Also removed the two attributes 'lab' and 'used' in the tarval struct.
235 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
236 afterwards some recursive includes, so libfirm works again.
239 Did a lot of changes, which I never commented until now (4.7.00).
241 * Added new result to Start node: Pointer to global data segment.
242 * Extended Semantics of SymConst node to represent information for the
244 * Added arithmeitc nodes (Shrs, Minus ...)
246 Rearranged the directory structure and adjusted the makefiles.
247 The directories contain:
248 ir: everything for the intermediate representation (better: src?)
249 /ir: the ir itself, and standard optimizations.
250 /tv: the target value module
251 /tr: the type and entity representation
252 /adt: abstract data types
253 /common: stuff needed by all other dirs
254 /debug: debugging Unterstuetzung
256 include: external files needen as includes
257 testprograms: examples to test the lib.
259 The makefiles generate files with extension .d that contain the dependencies
263 Added access routine to attribute link of irnode in irnode.ch.
264 Added get_negated_pnc to irnode.ch.
267 Added an iterator in iropt that calls the optimization for all nodes.
268 Copied optimize's code to optimize_in_place and removed deallocations.
269 Made set_irn_n in irnode.c public.
270 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
271 are allowded as cfgpredecessors to represent dead "incoming" control
273 Added call to optimize_in_place in mature_block. Is this useful?
276 Changed tests from comparing enums to comparing pointers. This is more
277 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
278 now get_irn_op == op_And
281 Compared equivalent_value to the one in the original fiasco.
282 Added a test in case iro_And.
283 Changed implementation of iro_Div. Added routines turn_into_tuple
284 and set_irn_op() in irgmod/irnode.
285 Changed implementation of irn_Minus (although commented out).
286 Now all features are ported or documented for this function.
289 Compared computed_value to the one in the original fiasco.
290 Added one further optimization in case iro_Proj.
291 Now all features are ported for this function.
294 Updated comments in ircons.h.
297 Changed possible attribute of SymConst from type_class to type.
298 SymConst size could be the size of a union, array, ...
301 Implemented two dumpers that dump type information and a graph with
305 Implemented a walker that walks over the type informatin that can
306 be reached from an ir node.
307 Added routine get_kind(firm_thing) in common.h, Added file common.c.
308 Added files typewalk.ch and routines to irdump.
309 Added visited flags and initialization to entity and all types.
310 Implemented some of the missing access routines in type.c, entity.c
313 Implemented constructor for ShrA.
315 Added routine that iterates the graph and verifies all nodes.
316 Added Phi_in stack to irgraph. This allows to build several
317 graphs at once with respect to the Phi building algorithm.
320 Implemented dumper for control flow graphs. Changed irr_* and dead_*
321 examples to dump cfg.
324 Implemeted explicit stack for the Phi node generation. See ircons.c.
327 added include string.h in xoprintf.c to get rid of warning:
328 implicit declaration of function `bcopy'
332 Added more cases to equivalent_node.
333 Portet gigo, identify, identify_remember.
334 The set/pset library can not handle several hash tables. At least,
335 compiling several procedures causes a segmentation fault during access
336 to the tables (oo_program_example). Need to work on this.
337 transform_node still needs to be ported.
338 some cases in equivalent_node are still missing.
340 To get it running I had to remove the call to optimize in the
341 new_Block constructor. It can only be called when the Block is
345 Introduced a walker that walks only over blocks. The asserts
346 might be too strict for general graphs, but so far it works.
347 For the walker I introduced an additional flag in the attribute
348 of Blocks, an a global block_visited variable (in irgraph.h).
349 Furhter I modularized dump_ir_node, implemented dump_ir_graph
350 with the existing walker, and added new routines to output a
352 Changed the examples to call the new dump routine.
355 Added auxiliary routines to ir_node:
356 skip_Proj, skip_Nop, is_Bad ...
357 Changed access routines to use get_irn_n instead of explicit array
358 accesses. Changed get_irn_n to call skip_Id, so that the access routines
359 never will return Id nodes.
362 Repaired Phi computation, changed new_r_Phi_in. Added test program to
363 test irregular controlflow.
366 Updated optimizations computed_value and equivalent_node to new
367 Syntax of FIRM nodes and to use access routines.
368 Added routine skip_Proj in irnode.
370 2.2.2000 Boris Boesler
371 Added files irgwalk.c and irgwalk.h. They include a simple function to
372 traverse an ir graph and execute pre and post functions to current node.
375 Added arrays with parameters and result types to the type informtion
376 of a procedure. This is needed for the code generation. Also added
377 the corresponding access routines.
378 Adapted the testprograms.
381 Found a bug / complication: the call order
382 get_value (makes Phi0, put's it into graph_arr)
383 set_value (overwrites Phi0 in graph_arr)
384 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
386 fails. Added test wether graph_arr is already set in phi_merge.
388 Added tons of comments to explain Phi generation -- the stack hack.
392 irdump now outputs the pnc_number for projs of Cmp nodes.
393 Added routine to access the pnc_string.
396 Added result "dataseg" to Start node, with all it's consequences.
397 We need this for the compiler lab to translate global variables.
398 Now they can be selected from the data segment, and the start
399 node supplies the pointer to this segment.
400 These changes are guarded by preprocessor variable UEBPRAKT in
402 Changed files: common.h, irgraph.ch, irnode.h
406 removed array_example, added array-heap_example and
407 array-stack_example and adapted makefile.
409 Entity now also allows type_method as owner. This is to model
410 the stack, Sel nodes that select a variable (array) from the
411 stack need an entity that describes what they select. This
412 entity gets the type of the enclosing procedure as owner.
415 Added future access routines in `irmode.[ch]' as comments,
416 that all attributes in the ir_mode struct can be user-defined.
417 Added access routines in `irgraph.[ch]', for all attributes.
420 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
421 Added `irvrfy.[ch]' to MAKEFILE
422 Added "inline" before access routines in `irnode.h', that no warnings
423 will appear furthermore.
424 Added three more access routines in `irmode.[ch]':
425 struct tarval *get_min_of_mode (ir_mode *mode);
426 struct tarval *get_max_of_mode (ir_mode *mode);
427 struct tarval *get_null_of_mode (ir_mode *mode);
430 Adaption of Alloc, Sel and Entity to new types:
431 Changed array_example to use type instead of type_class.
432 Changed entity to allow all types as owner instead of
433 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
434 Changed alloc to allow allocating variables of any type instead of
436 Adapted all testprograms to avoid warnings.
438 removed dtest ... from Makefile, replaced by test.
441 Added "run" to makefile, added array_example to makefile of testprograms.
442 Corrected testprogram array
443 Changed assert in irvrfy -- Conv.
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