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