2 Changed array bounds in type.h to ir_node*. This allows to
3 construct array bounds that are complex constant expressions
4 simpler. Further dynamic array bounds can be displayed.
5 Comment in ircons.c extended: undefined values in start_block.
8 ifdef'ed all uses of gmp in tv.c away. Optimizations for
9 mode_Z no more supported, as well as constants of that mode.
12 Dokumentation in ir_dump
13 Habe Routinen fuer einzelne Knoten/Kanten aus header entfernt:
14 Benutzen globale Variable die nicht oeffentlich zugaenglich ist.
17 We need an entity for the array elements for the Sel nodes. This
18 entity should be stored in the array type. Changed constructor
19 parameters: include array element type. Entity for elements is built
24 Faulty use of va_arg, became visible with new, stricter gcc 2.96.
27 Added list of member entites to union. unioned_types and delimiters
28 are superfluous now -- removed.
29 Rationale: we want to express selection of a union member as a Sel
30 node. for this we need to have entities. The entities contain the
31 unioned type and have as name the delimiters...
34 Changed Makefile/MakeTargets to install headers and libraries
38 Changed Makefile and Configure scripts to produce a proper tar file
39 for distribution (libfirm-VERSION.tar)
40 Use 'make distrib' instead of 'make dist'
43 Changed implementation of tr module. With this I also changed the
44 interface!! Type casts are unnecessary now, but some access funcions
48 ======================================================================
49 ==================== New version: 0.3.0 ==============================
50 ======================================================================
56 added creation of a tar archive for distribution
57 replaced ir/.dummy.in by ir/Makefile.in
60 Changed equivalent_node() and copy_preds() so that the end block
61 is not optimized away if it has no real predecessors. This fixes
62 the problem with the while examples.
63 Added while_example in Makefile
66 Fooled around with if_while_example: Why does cse make it abort?
67 Cse removes path to End node, Bad remains as pred of Endblock.
68 The block walker can't deal with this.
69 Made new example with only loop: while_example.
72 added auto documentation in Makefiles, configure, etc
73 example in ir/ir/ircons.c - much must be added
74 creation of documentation by 'make autodoc' in architecture directory
77 added lots of #ifdef HAVE_CONFIG_G #include "config.h" #endif
78 replaced some C++ style comments (//) by standard C comments /**/
81 - configure (with some features, see --help for more)
82 - make [depend | tags | install]
83 - make [run] in testprograms
85 - compilation on SunOS
87 - automatic call of autoconf if required
90 More colours in vcg output.
91 Fixed bug: cse found that start block equals it's
92 first successor as both have the Start block as predecessor.
93 This only happens for local_optimize_graph() as during construction
94 the Start block is not entered in the value table.
95 Changed implementation: irgmod: local_optimize_graph() did not
96 empty the hash table with the irnodes for cse. This might cause that
97 cse turns up with a node that seems better but was removed from the
98 graph in an earlier optimization phase.
99 Removed old #if 1 from ircons.c
100 Commented in call of optimization for Block nodes in irgopt.c, copy_preds():
101 Optimizes blocks that had bad predecessors.
106 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
107 Added a module deb_info in debug.h. Adapted makefile. Added example
109 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
111 Removed inabled code for dead node elimination in irgopt.h.
112 Renamed some missnamed access routines (_of_). Macros with old names
113 are in old_fctnames.h.
114 Edited makefiles to remove #* and *.flc.
117 Some minor bugfixes...
120 After compacting of in arrays in dead_node_elimination
121 merge blocks and remove Phis with one pred.
124 Freeing of obstack in dead_node_elimination commented in.
125 Compacting in arrays of Block and Phi nodes in dead_node_
130 added set/get_SymConst_type_or_id in irnode.h
131 added field offset to entity in entity.h
132 added field size to type_class in type.h
133 include "gmp.h" in tv.h with "" instead <>
136 Some changes to make the lib better portable
139 Initialize max_node_nr in irprog.
142 Now outputs warning if faulty type in irdump, dump_type_info.
143 Explicit string termination in irdump, vcg_open.
146 Added external to declaration of irp.
147 Added typedef before pns and pnc_number.
148 irmode.c, init_mode(): We need to memset all new modes as
149 tarval_vrfy reads fields before they are initialized: It
150 compares to min/max when tarvals for min/max are allocated!
153 Changed parameter of Methods in type.h and type.c from
154 class to clss. Class is a C++ keyword.
157 Changed some testprograms to accomodate Uebprakt.
160 Finished implementation of dump_all_types.
161 Added new testprogram inheritance_example.
164 Added seven access routines in type.[hc]:
165 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
166 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
167 Fixed the type_walk_2 for those seven routines.
170 Added irdump routine dump_all_types.
171 Did changes to irprog, type, typewalk to achieve this.
172 typewalk needs to walk along members, sub and supertypes, this
173 is still missing! irdump then needs to output these edges.
175 ======================================================================
176 ==================== New version: 0.2.5 ==============================
177 ======================================================================
180 Made new Version: 0.2.5
182 15.8.2000 Goetz until 3.9.00
183 Separated irnode.h and many others into two files: one public
185 Added funcionality to extract headers for lib.
188 type_dump also dumps irg->ent
189 if_example: corrected nr of locals
192 irgopt: Correct copy of self pointer in start block.
193 irgopt: Correct treatment of loops: pre function in walker
194 breaks all possible loops in Phi and Block nodes.
195 irr_loop_example: wrong Return statement
196 Now I fixed all but one error: in memory_example.
197 This error showed a conceptual problem, so I wrote
198 a slightly different algorithm. This now runs for
200 dead_node_example: cse is buggy!! merges start and the
204 looking at bug in dead_node_elimination.
206 irnode: all get_..._arr functions changed
207 ircons: new_r_Block: set matured flag.
208 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
209 adapted call_str_example to new concepts.
212 Implemented simpler Phi construction algorithm that constructs
213 correct code for three_cfpred_example in ircons. This algorithm
214 generates more Id nodes than the original algorithm and therefore
216 Also made some changes to optimizations of Not.
219 Fixed a bug, caused by the recursive use in type.h and entity.h.
220 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
221 Fixed a problem in if_while testprogram, so it now works.
224 Fixed bug in optimize(). Returned Null instead n if
225 get_optimize() == false.
228 Added some access routines in type.[hc]. Solved a recursive definition
229 of type_class struct, entity struct and type union.
232 Separated entity header into pure functional header and header
236 ... a bunch small changes not documented
239 Changed output of oo_prog_example: now uses the internal list
240 of all irgs. Had to implement some of the access routines for
241 that. Also fixed a bug in irdump. Main routines did not use
242 current_ir_graph properly.
245 Implemented some missing parts in irgopt.
246 Added field irg to entity. Only valid if entity is a method.
247 Had to resove a cyclic de[endency between irgraph.h and entity.h
249 Added fields sub and super to type_class for inheritance.
250 Added field main_irg to irprog.
253 Fixed some bugs in irgopt.c
254 Added some missing 'get_new_node' methods, so the new obstack contains
258 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
259 Solved some copy'n'paste problems. Deleted most debug-code!
260 Added comments to several files.
263 Fixed bug in _r_ constructors for all four Div operations.
264 Fixed bug in turn_into_tuple: didn't remember the block.
265 Tested transform_node.
268 Fixed some testprograms to new semantics of firm.
269 Added testprogram global_var_example.
270 Fixed a bug in irop: Size of Sel node was (entity *) instead of
271 sel_attr. Therefor array_heap_example aborted.
272 Also found a missing break in typewalk, case iro_Alloc.
273 Added a construct that unifies all things constructed by the lib
274 and needed to represent a program: irprog.ch
275 This contains a list of all types as well as a list of all ir graphs.
276 I added calls to initialization and constructors so that this is constructed
277 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
278 Removed strange block struct and constructor from ircons.c.
279 Moved routines for automatic Phi construction from irgmod to ircons.
280 Sorted functions in ircons to reflect the different interfaces.
281 Renamed dataseg to globals to be conformant with documentation.
282 Added conservation of current_ir_graph to irgopt.c.
283 Corrected bug in Makefiles: wrong path to directory ./inlude.
286 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
287 We should change the naming of the Block constructor.
288 Removed acces routines to attr. "closed" of Block.
289 Removed second implementation of new_ir_node from ircons and some comments
290 concerned with the now resolved cyclic dependency.
291 Fixed some bugs in irgopt so that the compilation goes through.
294 Changed the irnode attribut 'visit' into 'visited'.
295 Added some access functions, like get/set_irn_visit etc.
298 Renamed some access funtion in irgraph.*.
299 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
300 Added two attributes to the irgraph struct. The visited flags belongs
301 to a ir graph, not to a whole program.
304 A new optimization has been finished. The dead-node-elimination copies
305 the existing ir graph from one opstack to another. While walking the
306 graph, only the reachable nodes will be copied, so the "dead-nodes"
307 (unreachable in the controlflow) are removed.
310 Solved some problems in the 'copy_node' function. The in array was not
311 as easy as it seamed.
314 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
315 optimization, which is needed in the paramter list of 'irg_walk'.
318 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
319 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
323 Removed some files from the archive, after dependencies and usage are
325 - 'ir/common/strerror.c'
327 - 'ir/ident/xx_ident.h'
328 an empty file, only included by 'ident.c', but never used;
329 - 'ir/tv/label.c' and
331 contained a numeric counter;
332 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
333 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
334 In the old fiasco compiler, the label thing is used in the backend.
335 Search for 'babil' to see the usage.
336 Also removed the two attributes 'lab' and 'used' in the tarval struct.
339 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
340 afterwards some recursive includes, so libfirm works again.
343 Did a lot of changes, which I never commented until now (4.7.00).
345 * Added new result to Start node: Pointer to global data segment.
346 * Extended Semantics of SymConst node to represent information for the
348 * Added arithmeitc nodes (Shrs, Minus ...)
350 Rearranged the directory structure and adjusted the makefiles.
351 The directories contain:
352 ir: everything for the intermediate representation (better: src?)
353 /ir: the ir itself, and standard optimizations.
354 /tv: the target value module
355 /tr: the type and entity representation
356 /adt: abstract data types
357 /common: stuff needed by all other dirs
358 /debug: debugging Unterstuetzung
360 include: external files needen as includes
361 testprograms: examples to test the lib.
363 The makefiles generate files with extension .d that contain the dependencies
367 Added access routine to attribute link of irnode in irnode.ch.
368 Added get_negated_pnc to irnode.ch.
371 Added an iterator in iropt that calls the optimization for all nodes.
372 Copied optimize's code to optimize_in_place and removed deallocations.
373 Made set_irn_n in irnode.c public.
374 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
375 are allowded as cfgpredecessors to represent dead "incoming" control
377 Added call to optimize_in_place in mature_block. Is this useful?
380 Changed tests from comparing enums to comparing pointers. This is more
381 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
382 now get_irn_op == op_And
385 Compared equivalent_value to the one in the original fiasco.
386 Added a test in case iro_And.
387 Changed implementation of iro_Div. Added routines turn_into_tuple
388 and set_irn_op() in irgmod/irnode.
389 Changed implementation of irn_Minus (although commented out).
390 Now all features are ported or documented for this function.
393 Compared computed_value to the one in the original fiasco.
394 Added one further optimization in case iro_Proj.
395 Now all features are ported for this function.
398 Updated comments in ircons.h.
401 Changed possible attribute of SymConst from type_class to type.
402 SymConst size could be the size of a union, array, ...
405 Implemented two dumpers that dump type information and a graph with
409 Implemented a walker that walks over the type informatin that can
410 be reached from an ir node.
411 Added routine get_kind(firm_thing) in common.h, Added file common.c.
412 Added files typewalk.ch and routines to irdump.
413 Added visited flags and initialization to entity and all types.
414 Implemented some of the missing access routines in type.c, entity.c
417 Implemented constructor for ShrA.
419 Added routine that iterates the graph and verifies all nodes.
420 Added Phi_in stack to irgraph. This allows to build several
421 graphs at once with respect to the Phi building algorithm.
424 Implemented dumper for control flow graphs. Changed irr_* and dead_*
425 examples to dump cfg.
428 Implemeted explicit stack for the Phi node generation. See ircons.c.
431 added include string.h in xoprintf.c to get rid of warning:
432 implicit declaration of function `bcopy'
436 Added more cases to equivalent_node.
437 Portet gigo, identify, identify_remember.
438 The set/pset library can not handle several hash tables. At least,
439 compiling several procedures causes a segmentation fault during access
440 to the tables (oo_program_example). Need to work on this.
441 transform_node still needs to be ported.
442 some cases in equivalent_node are still missing.
444 To get it running I had to remove the call to optimize in the
445 new_Block constructor. It can only be called when the Block is
449 Introduced a walker that walks only over blocks. The asserts
450 might be too strict for general graphs, but so far it works.
451 For the walker I introduced an additional flag in the attribute
452 of Blocks, an a global block_visited variable (in irgraph.h).
453 Furhter I modularized dump_ir_node, implemented dump_ir_graph
454 with the existing walker, and added new routines to output a
456 Changed the examples to call the new dump routine.
459 Added auxiliary routines to ir_node:
460 skip_Proj, skip_Nop, is_Bad ...
461 Changed access routines to use get_irn_n instead of explicit array
462 accesses. Changed get_irn_n to call skip_Id, so that the access routines
463 never will return Id nodes.
466 Repaired Phi computation, changed new_r_Phi_in. Added test program to
467 test irregular controlflow.
470 Updated optimizations computed_value and equivalent_node to new
471 Syntax of FIRM nodes and to use access routines.
472 Added routine skip_Proj in irnode.
474 2.2.2000 Boris Boesler
475 Added files irgwalk.c and irgwalk.h. They include a simple function to
476 traverse an ir graph and execute pre and post functions to current node.
479 Added arrays with parameters and result types to the type informtion
480 of a procedure. This is needed for the code generation. Also added
481 the corresponding access routines.
482 Adapted the testprograms.
485 Found a bug / complication: the call order
486 get_value (makes Phi0, put's it into graph_arr)
487 set_value (overwrites Phi0 in graph_arr)
488 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
490 fails. Added test wether graph_arr is already set in phi_merge.
492 Added tons of comments to explain Phi generation -- the stack hack.
496 irdump now outputs the pnc_number for projs of Cmp nodes.
497 Added routine to access the pnc_string.
500 Added result "dataseg" to Start node, with all it's consequences.
501 We need this for the compiler lab to translate global variables.
502 Now they can be selected from the data segment, and the start
503 node supplies the pointer to this segment.
504 These changes are guarded by preprocessor variable UEBPRAKT in
506 Changed files: common.h, irgraph.ch, irnode.h
510 removed array_example, added array-heap_example and
511 array-stack_example and adapted makefile.
513 Entity now also allows type_method as owner. This is to model
514 the stack, Sel nodes that select a variable (array) from the
515 stack need an entity that describes what they select. This
516 entity gets the type of the enclosing procedure as owner.
519 Added future access routines in `irmode.[ch]' as comments,
520 that all attributes in the ir_mode struct can be user-defined.
521 Added access routines in `irgraph.[ch]', for all attributes.
524 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
525 Added `irvrfy.[ch]' to MAKEFILE
526 Added "inline" before access routines in `irnode.h', that no warnings
527 will appear furthermore.
528 Added three more access routines in `irmode.[ch]':
529 struct tarval *get_min_of_mode (ir_mode *mode);
530 struct tarval *get_max_of_mode (ir_mode *mode);
531 struct tarval *get_null_of_mode (ir_mode *mode);
534 Adaption of Alloc, Sel and Entity to new types:
535 Changed array_example to use type instead of type_class.
536 Changed entity to allow all types as owner instead of
537 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
538 Changed alloc to allow allocating variables of any type instead of
540 Adapted all testprograms to avoid warnings.
542 removed dtest ... from Makefile, replaced by test.
545 Added "run" to makefile, added array_example to makefile of testprograms.
546 Corrected testprogram array
547 Changed assert in irvrfy -- Conv.
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