2 Fooled around with if_while_example: Why does cse make it abort?
3 Cse removes path to End node, Bad remains as pred of Endblock.
4 The block walker can't deal with this.
5 Made new example with only loop: while_example.
8 added auto documentation in Makefiles, configure, etc
9 example in ir/ir/ircons.c - much must be added
10 creation of documentation by 'make autodoc' in architecture directory
13 added lots of #ifdef HAVE_CONFIG_G #include "config.h" #endif
14 replaced some C++ style comments (//) by standard C comments /**/
17 - configure (with some features, see --help for more)
18 - make [depend | tags | install]
19 - make [run] in testprograms
21 - compilation on SunOS
23 - automatic call of autoconf if required
26 More colours in vcg output.
27 Fixed bug: cse found that start block equals it's
28 first successor as both have the Start block as predecessor.
29 This only happens for local_optimize_graph() as during construction
30 the Start block is not entered in the value table.
31 Changed implementation: irgmod: local_optimize_graph() did not
32 empty the hash table with the irnodes for cse. This might cause that
33 cse turns up with a node that seems better but was removed from the
34 graph in an earlier optimization phase.
35 Removed old #if 1 from ircons.c
36 Commented in call of optimization for Block nodes in irgopt.c, copy_preds():
37 Optimizes blocks that had bad predecessors.
42 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
43 Added a module deb_info in debug.h. Adapted makefile. Added example
45 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
47 Removed inabled code for dead node elimination in irgopt.h.
48 Renamed some missnamed access routines (_of_). Macros with old names
49 are in old_fctnames.h.
50 Edited makefiles to remove #* and *.flc.
53 Some minor bugfixes...
56 After compacting of in arrays in dead_node_elimination
57 merge blocks and remove Phis with one pred.
60 Freeing of obstack in dead_node_elimination commented in.
61 Compacting in arrays of Block and Phi nodes in dead_node_
66 added set/get_SymConst_type_or_id in irnode.h
67 added field offset to entity in entity.h
68 added field size to type_class in type.h
69 include "gmp.h" in tv.h with "" instead <>
72 Some changes to make the lib better portable
75 Initialize max_node_nr in irprog.
78 Now outputs warning if faulty type in irdump, dump_type_info.
79 Explicit string termination in irdump, vcg_open.
82 Added external to declaration of irp.
83 Added typedef before pns and pnc_number.
84 irmode.c, init_mode(): We need to memset all new modes as
85 tarval_vrfy reads fields before they are initialized: It
86 compares to min/max when tarvals for min/max are allocated!
89 Changed parameter of Methods in type.h and type.c from
90 class to clss. Class is a C++ keyword.
93 Changed some testprograms to accomodate Uebprakt.
96 Finished implementation of dump_all_types.
97 Added new testprogram inheritance_example.
100 Added seven access routines in type.[hc]:
101 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
102 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
103 Fixed the type_walk_2 for those seven routines.
106 Added irdump routine dump_all_types.
107 Did changes to irprog, type, typewalk to achieve this.
108 typewalk needs to walk along members, sub and supertypes, this
109 is still missing! irdump then needs to output these edges.
111 ======================================================================
112 ==================== New version: 0.2.5 ==============================
113 ======================================================================
116 Made new Version: 0.2.5
118 15.8.2000 Goetz until 3.9.00
119 Separated irnode.h and many others into two files: one public
121 Added funcionality to extract headers for lib.
124 type_dump also dumps irg->ent
125 if_example: corrected nr of locals
128 irgopt: Correct copy of self pointer in start block.
129 irgopt: Correct treatment of loops: pre function in walker
130 breaks all possible loops in Phi and Block nodes.
131 irr_loop_example: wrong Return statement
132 Now I fixed all but one error: in memory_example.
133 This error showed a conceptual problem, so I wrote
134 a slightly different algorithm. This now runs for
136 dead_node_example: cse is buggy!! merges start and the
140 looking at bug in dead_node_elimination.
142 irnode: all get_..._arr functions changed
143 ircons: new_r_Block: set matured flag.
144 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
145 adapted call_str_example to new concepts.
148 Implemented simpler Phi construction algorithm that constructs
149 correct code for three_cfpred_example in ircons. This algorithm
150 generates more Id nodes than the original algorithm and therefore
152 Also made some changes to optimizations of Not.
155 Fixed a bug, caused by the recursive use in type.h and entity.h.
156 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
157 Fixed a problem in if_while testprogram, so it now works.
160 Fixed bug in optimize(). Returned Null instead n if
161 get_optimize() == false.
164 Added some access routines in type.[hc]. Solved a recursive definition
165 of type_class struct, entity struct and type union.
168 Separated entity header into pure functional header and header
172 ... a bunch small changes not documented
175 Changed output of oo_prog_example: now uses the internal list
176 of all irgs. Had to implement some of the access routines for
177 that. Also fixed a bug in irdump. Main routines did not use
178 current_ir_graph properly.
181 Implemented some missing parts in irgopt.
182 Added field irg to entity. Only valid if entity is a method.
183 Had to resove a cyclic de[endency between irgraph.h and entity.h
185 Added fields sub and super to type_class for inheritance.
186 Added field main_irg to irprog.
189 Fixed some bugs in irgopt.c
190 Added some missing 'get_new_node' methods, so the new obstack contains
194 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
195 Solved some copy'n'paste problems. Deleted most debug-code!
196 Added comments to several files.
199 Fixed bug in _r_ constructors for all four Div operations.
200 Fixed bug in turn_into_tuple: didn't remember the block.
201 Tested transform_node.
204 Fixed some testprograms to new semantics of firm.
205 Added testprogram global_var_example.
206 Fixed a bug in irop: Size of Sel node was (entity *) instead of
207 sel_attr. Therefor array_heap_example aborted.
208 Also found a missing break in typewalk, case iro_Alloc.
209 Added a construct that unifies all things constructed by the lib
210 and needed to represent a program: irprog.ch
211 This contains a list of all types as well as a list of all ir graphs.
212 I added calls to initialization and constructors so that this is constructed
213 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
214 Removed strange block struct and constructor from ircons.c.
215 Moved routines for automatic Phi construction from irgmod to ircons.
216 Sorted functions in ircons to reflect the different interfaces.
217 Renamed dataseg to globals to be conformant with documentation.
218 Added conservation of current_ir_graph to irgopt.c.
219 Corrected bug in Makefiles: wrong path to directory ./inlude.
222 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
223 We should change the naming of the Block constructor.
224 Removed acces routines to attr. "closed" of Block.
225 Removed second implementation of new_ir_node from ircons and some comments
226 concerned with the now resolved cyclic dependency.
227 Fixed some bugs in irgopt so that the compilation goes through.
230 Changed the irnode attribut 'visit' into 'visited'.
231 Added some access functions, like get/set_irn_visit etc.
234 Renamed some access funtion in irgraph.*.
235 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
236 Added two attributes to the irgraph struct. The visited flags belongs
237 to a ir graph, not to a whole program.
240 A new optimization has been finished. The dead-node-elimination copies
241 the existing ir graph from one opstack to another. While walking the
242 graph, only the reachable nodes will be copied, so the "dead-nodes"
243 (unreachable in the controlflow) are removed.
246 Solved some problems in the 'copy_node' function. The in array was not
247 as easy as it seamed.
250 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
251 optimization, which is needed in the paramter list of 'irg_walk'.
254 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
255 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
259 Removed some files from the archive, after dependencies and usage are
261 - 'ir/common/strerror.c'
263 - 'ir/ident/xx_ident.h'
264 an empty file, only included by 'ident.c', but never used;
265 - 'ir/tv/label.c' and
267 contained a numeric counter;
268 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
269 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
270 In the old fiasco compiler, the label thing is used in the backend.
271 Search for 'babil' to see the usage.
272 Also removed the two attributes 'lab' and 'used' in the tarval struct.
275 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
276 afterwards some recursive includes, so libfirm works again.
279 Did a lot of changes, which I never commented until now (4.7.00).
281 * Added new result to Start node: Pointer to global data segment.
282 * Extended Semantics of SymConst node to represent information for the
284 * Added arithmeitc nodes (Shrs, Minus ...)
286 Rearranged the directory structure and adjusted the makefiles.
287 The directories contain:
288 ir: everything for the intermediate representation (better: src?)
289 /ir: the ir itself, and standard optimizations.
290 /tv: the target value module
291 /tr: the type and entity representation
292 /adt: abstract data types
293 /common: stuff needed by all other dirs
294 /debug: debugging Unterstuetzung
296 include: external files needen as includes
297 testprograms: examples to test the lib.
299 The makefiles generate files with extension .d that contain the dependencies
303 Added access routine to attribute link of irnode in irnode.ch.
304 Added get_negated_pnc to irnode.ch.
307 Added an iterator in iropt that calls the optimization for all nodes.
308 Copied optimize's code to optimize_in_place and removed deallocations.
309 Made set_irn_n in irnode.c public.
310 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
311 are allowded as cfgpredecessors to represent dead "incoming" control
313 Added call to optimize_in_place in mature_block. Is this useful?
316 Changed tests from comparing enums to comparing pointers. This is more
317 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
318 now get_irn_op == op_And
321 Compared equivalent_value to the one in the original fiasco.
322 Added a test in case iro_And.
323 Changed implementation of iro_Div. Added routines turn_into_tuple
324 and set_irn_op() in irgmod/irnode.
325 Changed implementation of irn_Minus (although commented out).
326 Now all features are ported or documented for this function.
329 Compared computed_value to the one in the original fiasco.
330 Added one further optimization in case iro_Proj.
331 Now all features are ported for this function.
334 Updated comments in ircons.h.
337 Changed possible attribute of SymConst from type_class to type.
338 SymConst size could be the size of a union, array, ...
341 Implemented two dumpers that dump type information and a graph with
345 Implemented a walker that walks over the type informatin that can
346 be reached from an ir node.
347 Added routine get_kind(firm_thing) in common.h, Added file common.c.
348 Added files typewalk.ch and routines to irdump.
349 Added visited flags and initialization to entity and all types.
350 Implemented some of the missing access routines in type.c, entity.c
353 Implemented constructor for ShrA.
355 Added routine that iterates the graph and verifies all nodes.
356 Added Phi_in stack to irgraph. This allows to build several
357 graphs at once with respect to the Phi building algorithm.
360 Implemented dumper for control flow graphs. Changed irr_* and dead_*
361 examples to dump cfg.
364 Implemeted explicit stack for the Phi node generation. See ircons.c.
367 added include string.h in xoprintf.c to get rid of warning:
368 implicit declaration of function `bcopy'
372 Added more cases to equivalent_node.
373 Portet gigo, identify, identify_remember.
374 The set/pset library can not handle several hash tables. At least,
375 compiling several procedures causes a segmentation fault during access
376 to the tables (oo_program_example). Need to work on this.
377 transform_node still needs to be ported.
378 some cases in equivalent_node are still missing.
380 To get it running I had to remove the call to optimize in the
381 new_Block constructor. It can only be called when the Block is
385 Introduced a walker that walks only over blocks. The asserts
386 might be too strict for general graphs, but so far it works.
387 For the walker I introduced an additional flag in the attribute
388 of Blocks, an a global block_visited variable (in irgraph.h).
389 Furhter I modularized dump_ir_node, implemented dump_ir_graph
390 with the existing walker, and added new routines to output a
392 Changed the examples to call the new dump routine.
395 Added auxiliary routines to ir_node:
396 skip_Proj, skip_Nop, is_Bad ...
397 Changed access routines to use get_irn_n instead of explicit array
398 accesses. Changed get_irn_n to call skip_Id, so that the access routines
399 never will return Id nodes.
402 Repaired Phi computation, changed new_r_Phi_in. Added test program to
403 test irregular controlflow.
406 Updated optimizations computed_value and equivalent_node to new
407 Syntax of FIRM nodes and to use access routines.
408 Added routine skip_Proj in irnode.
410 2.2.2000 Boris Boesler
411 Added files irgwalk.c and irgwalk.h. They include a simple function to
412 traverse an ir graph and execute pre and post functions to current node.
415 Added arrays with parameters and result types to the type informtion
416 of a procedure. This is needed for the code generation. Also added
417 the corresponding access routines.
418 Adapted the testprograms.
421 Found a bug / complication: the call order
422 get_value (makes Phi0, put's it into graph_arr)
423 set_value (overwrites Phi0 in graph_arr)
424 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
426 fails. Added test wether graph_arr is already set in phi_merge.
428 Added tons of comments to explain Phi generation -- the stack hack.
432 irdump now outputs the pnc_number for projs of Cmp nodes.
433 Added routine to access the pnc_string.
436 Added result "dataseg" to Start node, with all it's consequences.
437 We need this for the compiler lab to translate global variables.
438 Now they can be selected from the data segment, and the start
439 node supplies the pointer to this segment.
440 These changes are guarded by preprocessor variable UEBPRAKT in
442 Changed files: common.h, irgraph.ch, irnode.h
446 removed array_example, added array-heap_example and
447 array-stack_example and adapted makefile.
449 Entity now also allows type_method as owner. This is to model
450 the stack, Sel nodes that select a variable (array) from the
451 stack need an entity that describes what they select. This
452 entity gets the type of the enclosing procedure as owner.
455 Added future access routines in `irmode.[ch]' as comments,
456 that all attributes in the ir_mode struct can be user-defined.
457 Added access routines in `irgraph.[ch]', for all attributes.
460 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
461 Added `irvrfy.[ch]' to MAKEFILE
462 Added "inline" before access routines in `irnode.h', that no warnings
463 will appear furthermore.
464 Added three more access routines in `irmode.[ch]':
465 struct tarval *get_min_of_mode (ir_mode *mode);
466 struct tarval *get_max_of_mode (ir_mode *mode);
467 struct tarval *get_null_of_mode (ir_mode *mode);
470 Adaption of Alloc, Sel and Entity to new types:
471 Changed array_example to use type instead of type_class.
472 Changed entity to allow all types as owner instead of
473 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
474 Changed alloc to allow allocating variables of any type instead of
476 Adapted all testprograms to avoid warnings.
478 removed dtest ... from Makefile, replaced by test.
481 Added "run" to makefile, added array_example to makefile of testprograms.
482 Corrected testprogram array
483 Changed assert in irvrfy -- Conv.
projects / libfirm / blob