5 added creation of a tar archive for distribution
6 replaced ir/.dummy.in by ir/Makefile.in
9 Changed equivalent_node() and copy_preds() so that the end block
10 is not optimized away if it has no real predecessors. This fixes
11 the problem with the while examples.
12 Added while_example in Makefile
15 Fooled around with if_while_example: Why does cse make it abort?
16 Cse removes path to End node, Bad remains as pred of Endblock.
17 The block walker can't deal with this.
18 Made new example with only loop: while_example.
21 added auto documentation in Makefiles, configure, etc
22 example in ir/ir/ircons.c - much must be added
23 creation of documentation by 'make autodoc' in architecture directory
26 added lots of #ifdef HAVE_CONFIG_G #include "config.h" #endif
27 replaced some C++ style comments (//) by standard C comments /**/
30 - configure (with some features, see --help for more)
31 - make [depend | tags | install]
32 - make [run] in testprograms
34 - compilation on SunOS
36 - automatic call of autoconf if required
39 More colours in vcg output.
40 Fixed bug: cse found that start block equals it's
41 first successor as both have the Start block as predecessor.
42 This only happens for local_optimize_graph() as during construction
43 the Start block is not entered in the value table.
44 Changed implementation: irgmod: local_optimize_graph() did not
45 empty the hash table with the irnodes for cse. This might cause that
46 cse turns up with a node that seems better but was removed from the
47 graph in an earlier optimization phase.
48 Removed old #if 1 from ircons.c
49 Commented in call of optimization for Block nodes in irgopt.c, copy_preds():
50 Optimizes blocks that had bad predecessors.
55 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
56 Added a module deb_info in debug.h. Adapted makefile. Added example
58 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
60 Removed inabled code for dead node elimination in irgopt.h.
61 Renamed some missnamed access routines (_of_). Macros with old names
62 are in old_fctnames.h.
63 Edited makefiles to remove #* and *.flc.
66 Some minor bugfixes...
69 After compacting of in arrays in dead_node_elimination
70 merge blocks and remove Phis with one pred.
73 Freeing of obstack in dead_node_elimination commented in.
74 Compacting in arrays of Block and Phi nodes in dead_node_
79 added set/get_SymConst_type_or_id in irnode.h
80 added field offset to entity in entity.h
81 added field size to type_class in type.h
82 include "gmp.h" in tv.h with "" instead <>
85 Some changes to make the lib better portable
88 Initialize max_node_nr in irprog.
91 Now outputs warning if faulty type in irdump, dump_type_info.
92 Explicit string termination in irdump, vcg_open.
95 Added external to declaration of irp.
96 Added typedef before pns and pnc_number.
97 irmode.c, init_mode(): We need to memset all new modes as
98 tarval_vrfy reads fields before they are initialized: It
99 compares to min/max when tarvals for min/max are allocated!
102 Changed parameter of Methods in type.h and type.c from
103 class to clss. Class is a C++ keyword.
106 Changed some testprograms to accomodate Uebprakt.
109 Finished implementation of dump_all_types.
110 Added new testprogram inheritance_example.
113 Added seven access routines in type.[hc]:
114 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
115 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
116 Fixed the type_walk_2 for those seven routines.
119 Added irdump routine dump_all_types.
120 Did changes to irprog, type, typewalk to achieve this.
121 typewalk needs to walk along members, sub and supertypes, this
122 is still missing! irdump then needs to output these edges.
124 ======================================================================
125 ==================== New version: 0.2.5 ==============================
126 ======================================================================
129 Made new Version: 0.2.5
131 15.8.2000 Goetz until 3.9.00
132 Separated irnode.h and many others into two files: one public
134 Added funcionality to extract headers for lib.
137 type_dump also dumps irg->ent
138 if_example: corrected nr of locals
141 irgopt: Correct copy of self pointer in start block.
142 irgopt: Correct treatment of loops: pre function in walker
143 breaks all possible loops in Phi and Block nodes.
144 irr_loop_example: wrong Return statement
145 Now I fixed all but one error: in memory_example.
146 This error showed a conceptual problem, so I wrote
147 a slightly different algorithm. This now runs for
149 dead_node_example: cse is buggy!! merges start and the
153 looking at bug in dead_node_elimination.
155 irnode: all get_..._arr functions changed
156 ircons: new_r_Block: set matured flag.
157 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
158 adapted call_str_example to new concepts.
161 Implemented simpler Phi construction algorithm that constructs
162 correct code for three_cfpred_example in ircons. This algorithm
163 generates more Id nodes than the original algorithm and therefore
165 Also made some changes to optimizations of Not.
168 Fixed a bug, caused by the recursive use in type.h and entity.h.
169 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
170 Fixed a problem in if_while testprogram, so it now works.
173 Fixed bug in optimize(). Returned Null instead n if
174 get_optimize() == false.
177 Added some access routines in type.[hc]. Solved a recursive definition
178 of type_class struct, entity struct and type union.
181 Separated entity header into pure functional header and header
185 ... a bunch small changes not documented
188 Changed output of oo_prog_example: now uses the internal list
189 of all irgs. Had to implement some of the access routines for
190 that. Also fixed a bug in irdump. Main routines did not use
191 current_ir_graph properly.
194 Implemented some missing parts in irgopt.
195 Added field irg to entity. Only valid if entity is a method.
196 Had to resove a cyclic de[endency between irgraph.h and entity.h
198 Added fields sub and super to type_class for inheritance.
199 Added field main_irg to irprog.
202 Fixed some bugs in irgopt.c
203 Added some missing 'get_new_node' methods, so the new obstack contains
207 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
208 Solved some copy'n'paste problems. Deleted most debug-code!
209 Added comments to several files.
212 Fixed bug in _r_ constructors for all four Div operations.
213 Fixed bug in turn_into_tuple: didn't remember the block.
214 Tested transform_node.
217 Fixed some testprograms to new semantics of firm.
218 Added testprogram global_var_example.
219 Fixed a bug in irop: Size of Sel node was (entity *) instead of
220 sel_attr. Therefor array_heap_example aborted.
221 Also found a missing break in typewalk, case iro_Alloc.
222 Added a construct that unifies all things constructed by the lib
223 and needed to represent a program: irprog.ch
224 This contains a list of all types as well as a list of all ir graphs.
225 I added calls to initialization and constructors so that this is constructed
226 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
227 Removed strange block struct and constructor from ircons.c.
228 Moved routines for automatic Phi construction from irgmod to ircons.
229 Sorted functions in ircons to reflect the different interfaces.
230 Renamed dataseg to globals to be conformant with documentation.
231 Added conservation of current_ir_graph to irgopt.c.
232 Corrected bug in Makefiles: wrong path to directory ./inlude.
235 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
236 We should change the naming of the Block constructor.
237 Removed acces routines to attr. "closed" of Block.
238 Removed second implementation of new_ir_node from ircons and some comments
239 concerned with the now resolved cyclic dependency.
240 Fixed some bugs in irgopt so that the compilation goes through.
243 Changed the irnode attribut 'visit' into 'visited'.
244 Added some access functions, like get/set_irn_visit etc.
247 Renamed some access funtion in irgraph.*.
248 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
249 Added two attributes to the irgraph struct. The visited flags belongs
250 to a ir graph, not to a whole program.
253 A new optimization has been finished. The dead-node-elimination copies
254 the existing ir graph from one opstack to another. While walking the
255 graph, only the reachable nodes will be copied, so the "dead-nodes"
256 (unreachable in the controlflow) are removed.
259 Solved some problems in the 'copy_node' function. The in array was not
260 as easy as it seamed.
263 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
264 optimization, which is needed in the paramter list of 'irg_walk'.
267 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
268 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
272 Removed some files from the archive, after dependencies and usage are
274 - 'ir/common/strerror.c'
276 - 'ir/ident/xx_ident.h'
277 an empty file, only included by 'ident.c', but never used;
278 - 'ir/tv/label.c' and
280 contained a numeric counter;
281 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
282 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
283 In the old fiasco compiler, the label thing is used in the backend.
284 Search for 'babil' to see the usage.
285 Also removed the two attributes 'lab' and 'used' in the tarval struct.
288 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
289 afterwards some recursive includes, so libfirm works again.
292 Did a lot of changes, which I never commented until now (4.7.00).
294 * Added new result to Start node: Pointer to global data segment.
295 * Extended Semantics of SymConst node to represent information for the
297 * Added arithmeitc nodes (Shrs, Minus ...)
299 Rearranged the directory structure and adjusted the makefiles.
300 The directories contain:
301 ir: everything for the intermediate representation (better: src?)
302 /ir: the ir itself, and standard optimizations.
303 /tv: the target value module
304 /tr: the type and entity representation
305 /adt: abstract data types
306 /common: stuff needed by all other dirs
307 /debug: debugging Unterstuetzung
309 include: external files needen as includes
310 testprograms: examples to test the lib.
312 The makefiles generate files with extension .d that contain the dependencies
316 Added access routine to attribute link of irnode in irnode.ch.
317 Added get_negated_pnc to irnode.ch.
320 Added an iterator in iropt that calls the optimization for all nodes.
321 Copied optimize's code to optimize_in_place and removed deallocations.
322 Made set_irn_n in irnode.c public.
323 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
324 are allowded as cfgpredecessors to represent dead "incoming" control
326 Added call to optimize_in_place in mature_block. Is this useful?
329 Changed tests from comparing enums to comparing pointers. This is more
330 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
331 now get_irn_op == op_And
334 Compared equivalent_value to the one in the original fiasco.
335 Added a test in case iro_And.
336 Changed implementation of iro_Div. Added routines turn_into_tuple
337 and set_irn_op() in irgmod/irnode.
338 Changed implementation of irn_Minus (although commented out).
339 Now all features are ported or documented for this function.
342 Compared computed_value to the one in the original fiasco.
343 Added one further optimization in case iro_Proj.
344 Now all features are ported for this function.
347 Updated comments in ircons.h.
350 Changed possible attribute of SymConst from type_class to type.
351 SymConst size could be the size of a union, array, ...
354 Implemented two dumpers that dump type information and a graph with
358 Implemented a walker that walks over the type informatin that can
359 be reached from an ir node.
360 Added routine get_kind(firm_thing) in common.h, Added file common.c.
361 Added files typewalk.ch and routines to irdump.
362 Added visited flags and initialization to entity and all types.
363 Implemented some of the missing access routines in type.c, entity.c
366 Implemented constructor for ShrA.
368 Added routine that iterates the graph and verifies all nodes.
369 Added Phi_in stack to irgraph. This allows to build several
370 graphs at once with respect to the Phi building algorithm.
373 Implemented dumper for control flow graphs. Changed irr_* and dead_*
374 examples to dump cfg.
377 Implemeted explicit stack for the Phi node generation. See ircons.c.
380 added include string.h in xoprintf.c to get rid of warning:
381 implicit declaration of function `bcopy'
385 Added more cases to equivalent_node.
386 Portet gigo, identify, identify_remember.
387 The set/pset library can not handle several hash tables. At least,
388 compiling several procedures causes a segmentation fault during access
389 to the tables (oo_program_example). Need to work on this.
390 transform_node still needs to be ported.
391 some cases in equivalent_node are still missing.
393 To get it running I had to remove the call to optimize in the
394 new_Block constructor. It can only be called when the Block is
398 Introduced a walker that walks only over blocks. The asserts
399 might be too strict for general graphs, but so far it works.
400 For the walker I introduced an additional flag in the attribute
401 of Blocks, an a global block_visited variable (in irgraph.h).
402 Furhter I modularized dump_ir_node, implemented dump_ir_graph
403 with the existing walker, and added new routines to output a
405 Changed the examples to call the new dump routine.
408 Added auxiliary routines to ir_node:
409 skip_Proj, skip_Nop, is_Bad ...
410 Changed access routines to use get_irn_n instead of explicit array
411 accesses. Changed get_irn_n to call skip_Id, so that the access routines
412 never will return Id nodes.
415 Repaired Phi computation, changed new_r_Phi_in. Added test program to
416 test irregular controlflow.
419 Updated optimizations computed_value and equivalent_node to new
420 Syntax of FIRM nodes and to use access routines.
421 Added routine skip_Proj in irnode.
423 2.2.2000 Boris Boesler
424 Added files irgwalk.c and irgwalk.h. They include a simple function to
425 traverse an ir graph and execute pre and post functions to current node.
428 Added arrays with parameters and result types to the type informtion
429 of a procedure. This is needed for the code generation. Also added
430 the corresponding access routines.
431 Adapted the testprograms.
434 Found a bug / complication: the call order
435 get_value (makes Phi0, put's it into graph_arr)
436 set_value (overwrites Phi0 in graph_arr)
437 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
439 fails. Added test wether graph_arr is already set in phi_merge.
441 Added tons of comments to explain Phi generation -- the stack hack.
445 irdump now outputs the pnc_number for projs of Cmp nodes.
446 Added routine to access the pnc_string.
449 Added result "dataseg" to Start node, with all it's consequences.
450 We need this for the compiler lab to translate global variables.
451 Now they can be selected from the data segment, and the start
452 node supplies the pointer to this segment.
453 These changes are guarded by preprocessor variable UEBPRAKT in
455 Changed files: common.h, irgraph.ch, irnode.h
459 removed array_example, added array-heap_example and
460 array-stack_example and adapted makefile.
462 Entity now also allows type_method as owner. This is to model
463 the stack, Sel nodes that select a variable (array) from the
464 stack need an entity that describes what they select. This
465 entity gets the type of the enclosing procedure as owner.
468 Added future access routines in `irmode.[ch]' as comments,
469 that all attributes in the ir_mode struct can be user-defined.
470 Added access routines in `irgraph.[ch]', for all attributes.
473 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
474 Added `irvrfy.[ch]' to MAKEFILE
475 Added "inline" before access routines in `irnode.h', that no warnings
476 will appear furthermore.
477 Added three more access routines in `irmode.[ch]':
478 struct tarval *get_min_of_mode (ir_mode *mode);
479 struct tarval *get_max_of_mode (ir_mode *mode);
480 struct tarval *get_null_of_mode (ir_mode *mode);
483 Adaption of Alloc, Sel and Entity to new types:
484 Changed array_example to use type instead of type_class.
485 Changed entity to allow all types as owner instead of
486 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
487 Changed alloc to allow allocating variables of any type instead of
489 Adapted all testprograms to avoid warnings.
491 removed dtest ... from Makefile, replaced by test.
494 Added "run" to makefile, added array_example to makefile of testprograms.
495 Corrected testprogram array
496 Changed assert in irvrfy -- Conv.
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