2 added creation of a tar archive for distribution
3 replaced ir/.dummy.in by ir/Makefile.in
6 Changed equivalent_node() and copy_preds() so that the end block
7 is not optimized away if it has no real predecessors. This fixes
8 the problem with the while examples.
9 Added while_example in Makefile
12 Fooled around with if_while_example: Why does cse make it abort?
13 Cse removes path to End node, Bad remains as pred of Endblock.
14 The block walker can't deal with this.
15 Made new example with only loop: while_example.
18 added auto documentation in Makefiles, configure, etc
19 example in ir/ir/ircons.c - much must be added
20 creation of documentation by 'make autodoc' in architecture directory
23 added lots of #ifdef HAVE_CONFIG_G #include "config.h" #endif
24 replaced some C++ style comments (//) by standard C comments /**/
27 - configure (with some features, see --help for more)
28 - make [depend | tags | install]
29 - make [run] in testprograms
31 - compilation on SunOS
33 - automatic call of autoconf if required
36 More colours in vcg output.
37 Fixed bug: cse found that start block equals it's
38 first successor as both have the Start block as predecessor.
39 This only happens for local_optimize_graph() as during construction
40 the Start block is not entered in the value table.
41 Changed implementation: irgmod: local_optimize_graph() did not
42 empty the hash table with the irnodes for cse. This might cause that
43 cse turns up with a node that seems better but was removed from the
44 graph in an earlier optimization phase.
45 Removed old #if 1 from ircons.c
46 Commented in call of optimization for Block nodes in irgopt.c, copy_preds():
47 Optimizes blocks that had bad predecessors.
52 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
53 Added a module deb_info in debug.h. Adapted makefile. Added example
55 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
57 Removed inabled code for dead node elimination in irgopt.h.
58 Renamed some missnamed access routines (_of_). Macros with old names
59 are in old_fctnames.h.
60 Edited makefiles to remove #* and *.flc.
63 Some minor bugfixes...
66 After compacting of in arrays in dead_node_elimination
67 merge blocks and remove Phis with one pred.
70 Freeing of obstack in dead_node_elimination commented in.
71 Compacting in arrays of Block and Phi nodes in dead_node_
76 added set/get_SymConst_type_or_id in irnode.h
77 added field offset to entity in entity.h
78 added field size to type_class in type.h
79 include "gmp.h" in tv.h with "" instead <>
82 Some changes to make the lib better portable
85 Initialize max_node_nr in irprog.
88 Now outputs warning if faulty type in irdump, dump_type_info.
89 Explicit string termination in irdump, vcg_open.
92 Added external to declaration of irp.
93 Added typedef before pns and pnc_number.
94 irmode.c, init_mode(): We need to memset all new modes as
95 tarval_vrfy reads fields before they are initialized: It
96 compares to min/max when tarvals for min/max are allocated!
99 Changed parameter of Methods in type.h and type.c from
100 class to clss. Class is a C++ keyword.
103 Changed some testprograms to accomodate Uebprakt.
106 Finished implementation of dump_all_types.
107 Added new testprogram inheritance_example.
110 Added seven access routines in type.[hc]:
111 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
112 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
113 Fixed the type_walk_2 for those seven routines.
116 Added irdump routine dump_all_types.
117 Did changes to irprog, type, typewalk to achieve this.
118 typewalk needs to walk along members, sub and supertypes, this
119 is still missing! irdump then needs to output these edges.
121 ======================================================================
122 ==================== New version: 0.2.5 ==============================
123 ======================================================================
126 Made new Version: 0.2.5
128 15.8.2000 Goetz until 3.9.00
129 Separated irnode.h and many others into two files: one public
131 Added funcionality to extract headers for lib.
134 type_dump also dumps irg->ent
135 if_example: corrected nr of locals
138 irgopt: Correct copy of self pointer in start block.
139 irgopt: Correct treatment of loops: pre function in walker
140 breaks all possible loops in Phi and Block nodes.
141 irr_loop_example: wrong Return statement
142 Now I fixed all but one error: in memory_example.
143 This error showed a conceptual problem, so I wrote
144 a slightly different algorithm. This now runs for
146 dead_node_example: cse is buggy!! merges start and the
150 looking at bug in dead_node_elimination.
152 irnode: all get_..._arr functions changed
153 ircons: new_r_Block: set matured flag.
154 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
155 adapted call_str_example to new concepts.
158 Implemented simpler Phi construction algorithm that constructs
159 correct code for three_cfpred_example in ircons. This algorithm
160 generates more Id nodes than the original algorithm and therefore
162 Also made some changes to optimizations of Not.
165 Fixed a bug, caused by the recursive use in type.h and entity.h.
166 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
167 Fixed a problem in if_while testprogram, so it now works.
170 Fixed bug in optimize(). Returned Null instead n if
171 get_optimize() == false.
174 Added some access routines in type.[hc]. Solved a recursive definition
175 of type_class struct, entity struct and type union.
178 Separated entity header into pure functional header and header
182 ... a bunch small changes not documented
185 Changed output of oo_prog_example: now uses the internal list
186 of all irgs. Had to implement some of the access routines for
187 that. Also fixed a bug in irdump. Main routines did not use
188 current_ir_graph properly.
191 Implemented some missing parts in irgopt.
192 Added field irg to entity. Only valid if entity is a method.
193 Had to resove a cyclic de[endency between irgraph.h and entity.h
195 Added fields sub and super to type_class for inheritance.
196 Added field main_irg to irprog.
199 Fixed some bugs in irgopt.c
200 Added some missing 'get_new_node' methods, so the new obstack contains
204 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
205 Solved some copy'n'paste problems. Deleted most debug-code!
206 Added comments to several files.
209 Fixed bug in _r_ constructors for all four Div operations.
210 Fixed bug in turn_into_tuple: didn't remember the block.
211 Tested transform_node.
214 Fixed some testprograms to new semantics of firm.
215 Added testprogram global_var_example.
216 Fixed a bug in irop: Size of Sel node was (entity *) instead of
217 sel_attr. Therefor array_heap_example aborted.
218 Also found a missing break in typewalk, case iro_Alloc.
219 Added a construct that unifies all things constructed by the lib
220 and needed to represent a program: irprog.ch
221 This contains a list of all types as well as a list of all ir graphs.
222 I added calls to initialization and constructors so that this is constructed
223 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
224 Removed strange block struct and constructor from ircons.c.
225 Moved routines for automatic Phi construction from irgmod to ircons.
226 Sorted functions in ircons to reflect the different interfaces.
227 Renamed dataseg to globals to be conformant with documentation.
228 Added conservation of current_ir_graph to irgopt.c.
229 Corrected bug in Makefiles: wrong path to directory ./inlude.
232 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
233 We should change the naming of the Block constructor.
234 Removed acces routines to attr. "closed" of Block.
235 Removed second implementation of new_ir_node from ircons and some comments
236 concerned with the now resolved cyclic dependency.
237 Fixed some bugs in irgopt so that the compilation goes through.
240 Changed the irnode attribut 'visit' into 'visited'.
241 Added some access functions, like get/set_irn_visit etc.
244 Renamed some access funtion in irgraph.*.
245 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
246 Added two attributes to the irgraph struct. The visited flags belongs
247 to a ir graph, not to a whole program.
250 A new optimization has been finished. The dead-node-elimination copies
251 the existing ir graph from one opstack to another. While walking the
252 graph, only the reachable nodes will be copied, so the "dead-nodes"
253 (unreachable in the controlflow) are removed.
256 Solved some problems in the 'copy_node' function. The in array was not
257 as easy as it seamed.
260 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
261 optimization, which is needed in the paramter list of 'irg_walk'.
264 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
265 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
269 Removed some files from the archive, after dependencies and usage are
271 - 'ir/common/strerror.c'
273 - 'ir/ident/xx_ident.h'
274 an empty file, only included by 'ident.c', but never used;
275 - 'ir/tv/label.c' and
277 contained a numeric counter;
278 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
279 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
280 In the old fiasco compiler, the label thing is used in the backend.
281 Search for 'babil' to see the usage.
282 Also removed the two attributes 'lab' and 'used' in the tarval struct.
285 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
286 afterwards some recursive includes, so libfirm works again.
289 Did a lot of changes, which I never commented until now (4.7.00).
291 * Added new result to Start node: Pointer to global data segment.
292 * Extended Semantics of SymConst node to represent information for the
294 * Added arithmeitc nodes (Shrs, Minus ...)
296 Rearranged the directory structure and adjusted the makefiles.
297 The directories contain:
298 ir: everything for the intermediate representation (better: src?)
299 /ir: the ir itself, and standard optimizations.
300 /tv: the target value module
301 /tr: the type and entity representation
302 /adt: abstract data types
303 /common: stuff needed by all other dirs
304 /debug: debugging Unterstuetzung
306 include: external files needen as includes
307 testprograms: examples to test the lib.
309 The makefiles generate files with extension .d that contain the dependencies
313 Added access routine to attribute link of irnode in irnode.ch.
314 Added get_negated_pnc to irnode.ch.
317 Added an iterator in iropt that calls the optimization for all nodes.
318 Copied optimize's code to optimize_in_place and removed deallocations.
319 Made set_irn_n in irnode.c public.
320 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
321 are allowded as cfgpredecessors to represent dead "incoming" control
323 Added call to optimize_in_place in mature_block. Is this useful?
326 Changed tests from comparing enums to comparing pointers. This is more
327 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
328 now get_irn_op == op_And
331 Compared equivalent_value to the one in the original fiasco.
332 Added a test in case iro_And.
333 Changed implementation of iro_Div. Added routines turn_into_tuple
334 and set_irn_op() in irgmod/irnode.
335 Changed implementation of irn_Minus (although commented out).
336 Now all features are ported or documented for this function.
339 Compared computed_value to the one in the original fiasco.
340 Added one further optimization in case iro_Proj.
341 Now all features are ported for this function.
344 Updated comments in ircons.h.
347 Changed possible attribute of SymConst from type_class to type.
348 SymConst size could be the size of a union, array, ...
351 Implemented two dumpers that dump type information and a graph with
355 Implemented a walker that walks over the type informatin that can
356 be reached from an ir node.
357 Added routine get_kind(firm_thing) in common.h, Added file common.c.
358 Added files typewalk.ch and routines to irdump.
359 Added visited flags and initialization to entity and all types.
360 Implemented some of the missing access routines in type.c, entity.c
363 Implemented constructor for ShrA.
365 Added routine that iterates the graph and verifies all nodes.
366 Added Phi_in stack to irgraph. This allows to build several
367 graphs at once with respect to the Phi building algorithm.
370 Implemented dumper for control flow graphs. Changed irr_* and dead_*
371 examples to dump cfg.
374 Implemeted explicit stack for the Phi node generation. See ircons.c.
377 added include string.h in xoprintf.c to get rid of warning:
378 implicit declaration of function `bcopy'
382 Added more cases to equivalent_node.
383 Portet gigo, identify, identify_remember.
384 The set/pset library can not handle several hash tables. At least,
385 compiling several procedures causes a segmentation fault during access
386 to the tables (oo_program_example). Need to work on this.
387 transform_node still needs to be ported.
388 some cases in equivalent_node are still missing.
390 To get it running I had to remove the call to optimize in the
391 new_Block constructor. It can only be called when the Block is
395 Introduced a walker that walks only over blocks. The asserts
396 might be too strict for general graphs, but so far it works.
397 For the walker I introduced an additional flag in the attribute
398 of Blocks, an a global block_visited variable (in irgraph.h).
399 Furhter I modularized dump_ir_node, implemented dump_ir_graph
400 with the existing walker, and added new routines to output a
402 Changed the examples to call the new dump routine.
405 Added auxiliary routines to ir_node:
406 skip_Proj, skip_Nop, is_Bad ...
407 Changed access routines to use get_irn_n instead of explicit array
408 accesses. Changed get_irn_n to call skip_Id, so that the access routines
409 never will return Id nodes.
412 Repaired Phi computation, changed new_r_Phi_in. Added test program to
413 test irregular controlflow.
416 Updated optimizations computed_value and equivalent_node to new
417 Syntax of FIRM nodes and to use access routines.
418 Added routine skip_Proj in irnode.
420 2.2.2000 Boris Boesler
421 Added files irgwalk.c and irgwalk.h. They include a simple function to
422 traverse an ir graph and execute pre and post functions to current node.
425 Added arrays with parameters and result types to the type informtion
426 of a procedure. This is needed for the code generation. Also added
427 the corresponding access routines.
428 Adapted the testprograms.
431 Found a bug / complication: the call order
432 get_value (makes Phi0, put's it into graph_arr)
433 set_value (overwrites Phi0 in graph_arr)
434 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
436 fails. Added test wether graph_arr is already set in phi_merge.
438 Added tons of comments to explain Phi generation -- the stack hack.
442 irdump now outputs the pnc_number for projs of Cmp nodes.
443 Added routine to access the pnc_string.
446 Added result "dataseg" to Start node, with all it's consequences.
447 We need this for the compiler lab to translate global variables.
448 Now they can be selected from the data segment, and the start
449 node supplies the pointer to this segment.
450 These changes are guarded by preprocessor variable UEBPRAKT in
452 Changed files: common.h, irgraph.ch, irnode.h
456 removed array_example, added array-heap_example and
457 array-stack_example and adapted makefile.
459 Entity now also allows type_method as owner. This is to model
460 the stack, Sel nodes that select a variable (array) from the
461 stack need an entity that describes what they select. This
462 entity gets the type of the enclosing procedure as owner.
465 Added future access routines in `irmode.[ch]' as comments,
466 that all attributes in the ir_mode struct can be user-defined.
467 Added access routines in `irgraph.[ch]', for all attributes.
470 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
471 Added `irvrfy.[ch]' to MAKEFILE
472 Added "inline" before access routines in `irnode.h', that no warnings
473 will appear furthermore.
474 Added three more access routines in `irmode.[ch]':
475 struct tarval *get_min_of_mode (ir_mode *mode);
476 struct tarval *get_max_of_mode (ir_mode *mode);
477 struct tarval *get_null_of_mode (ir_mode *mode);
480 Adaption of Alloc, Sel and Entity to new types:
481 Changed array_example to use type instead of type_class.
482 Changed entity to allow all types as owner instead of
483 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
484 Changed alloc to allow allocating variables of any type instead of
486 Adapted all testprograms to avoid warnings.
488 removed dtest ... from Makefile, replaced by test.
491 Added "run" to makefile, added array_example to makefile of testprograms.
492 Corrected testprogram array
493 Changed assert in irvrfy -- Conv.
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