2 We need an entity for the array elements for the Sel nodes. This
3 entity should be stored in the array type. Changed constructor
4 parameters: include array element type. Entity for elements is built
9 Faulty use of va_arg, became visible with new, stricter gcc 2.96.
12 Added list of member entites to union. unioned_types and delimiters
13 are superfluous now -- removed.
14 Rationale: we want to express selection of a union member as a Sel
15 node. for this we need to have entities. The entities contain the
16 unioned type and have as name the delimiters...
19 Changed Makefile/MakeTargets to install headers and libraries
23 Changed Makefile and Configure scripts to produce a proper tar file
24 for distribution (libfirm-VERSION.tar)
25 Use 'make distrib' instead of 'make dist'
28 Changed implementation of tr module. With this I also changed the
29 interface!! Type casts are unnecessary now, but some access funcions
33 ======================================================================
34 ==================== New version: 0.3.0 ==============================
35 ======================================================================
41 added creation of a tar archive for distribution
42 replaced ir/.dummy.in by ir/Makefile.in
45 Changed equivalent_node() and copy_preds() so that the end block
46 is not optimized away if it has no real predecessors. This fixes
47 the problem with the while examples.
48 Added while_example in Makefile
51 Fooled around with if_while_example: Why does cse make it abort?
52 Cse removes path to End node, Bad remains as pred of Endblock.
53 The block walker can't deal with this.
54 Made new example with only loop: while_example.
57 added auto documentation in Makefiles, configure, etc
58 example in ir/ir/ircons.c - much must be added
59 creation of documentation by 'make autodoc' in architecture directory
62 added lots of #ifdef HAVE_CONFIG_G #include "config.h" #endif
63 replaced some C++ style comments (//) by standard C comments /**/
66 - configure (with some features, see --help for more)
67 - make [depend | tags | install]
68 - make [run] in testprograms
70 - compilation on SunOS
72 - automatic call of autoconf if required
75 More colours in vcg output.
76 Fixed bug: cse found that start block equals it's
77 first successor as both have the Start block as predecessor.
78 This only happens for local_optimize_graph() as during construction
79 the Start block is not entered in the value table.
80 Changed implementation: irgmod: local_optimize_graph() did not
81 empty the hash table with the irnodes for cse. This might cause that
82 cse turns up with a node that seems better but was removed from the
83 graph in an earlier optimization phase.
84 Removed old #if 1 from ircons.c
85 Commented in call of optimization for Block nodes in irgopt.c, copy_preds():
86 Optimizes blocks that had bad predecessors.
91 Moved struct from irprog.h to irprog_t.h, same for irmode.h.
92 Added a module deb_info in debug.h. Adapted makefile. Added example
94 Removed use of debug.h in ident.c. Now debug.c|h can be moved to
96 Removed inabled code for dead node elimination in irgopt.h.
97 Renamed some missnamed access routines (_of_). Macros with old names
98 are in old_fctnames.h.
99 Edited makefiles to remove #* and *.flc.
102 Some minor bugfixes...
105 After compacting of in arrays in dead_node_elimination
106 merge blocks and remove Phis with one pred.
109 Freeing of obstack in dead_node_elimination commented in.
110 Compacting in arrays of Block and Phi nodes in dead_node_
115 added set/get_SymConst_type_or_id in irnode.h
116 added field offset to entity in entity.h
117 added field size to type_class in type.h
118 include "gmp.h" in tv.h with "" instead <>
121 Some changes to make the lib better portable
124 Initialize max_node_nr in irprog.
127 Now outputs warning if faulty type in irdump, dump_type_info.
128 Explicit string termination in irdump, vcg_open.
131 Added external to declaration of irp.
132 Added typedef before pns and pnc_number.
133 irmode.c, init_mode(): We need to memset all new modes as
134 tarval_vrfy reads fields before they are initialized: It
135 compares to min/max when tarvals for min/max are allocated!
138 Changed parameter of Methods in type.h and type.c from
139 class to clss. Class is a C++ keyword.
142 Changed some testprograms to accomodate Uebprakt.
145 Finished implementation of dump_all_types.
146 Added new testprogram inheritance_example.
149 Added seven access routines in type.[hc]:
150 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
151 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
152 Fixed the type_walk_2 for those seven routines.
155 Added irdump routine dump_all_types.
156 Did changes to irprog, type, typewalk to achieve this.
157 typewalk needs to walk along members, sub and supertypes, this
158 is still missing! irdump then needs to output these edges.
160 ======================================================================
161 ==================== New version: 0.2.5 ==============================
162 ======================================================================
165 Made new Version: 0.2.5
167 15.8.2000 Goetz until 3.9.00
168 Separated irnode.h and many others into two files: one public
170 Added funcionality to extract headers for lib.
173 type_dump also dumps irg->ent
174 if_example: corrected nr of locals
177 irgopt: Correct copy of self pointer in start block.
178 irgopt: Correct treatment of loops: pre function in walker
179 breaks all possible loops in Phi and Block nodes.
180 irr_loop_example: wrong Return statement
181 Now I fixed all but one error: in memory_example.
182 This error showed a conceptual problem, so I wrote
183 a slightly different algorithm. This now runs for
185 dead_node_example: cse is buggy!! merges start and the
189 looking at bug in dead_node_elimination.
191 irnode: all get_..._arr functions changed
192 ircons: new_r_Block: set matured flag.
193 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
194 adapted call_str_example to new concepts.
197 Implemented simpler Phi construction algorithm that constructs
198 correct code for three_cfpred_example in ircons. This algorithm
199 generates more Id nodes than the original algorithm and therefore
201 Also made some changes to optimizations of Not.
204 Fixed a bug, caused by the recursive use in type.h and entity.h.
205 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
206 Fixed a problem in if_while testprogram, so it now works.
209 Fixed bug in optimize(). Returned Null instead n if
210 get_optimize() == false.
213 Added some access routines in type.[hc]. Solved a recursive definition
214 of type_class struct, entity struct and type union.
217 Separated entity header into pure functional header and header
221 ... a bunch small changes not documented
224 Changed output of oo_prog_example: now uses the internal list
225 of all irgs. Had to implement some of the access routines for
226 that. Also fixed a bug in irdump. Main routines did not use
227 current_ir_graph properly.
230 Implemented some missing parts in irgopt.
231 Added field irg to entity. Only valid if entity is a method.
232 Had to resove a cyclic de[endency between irgraph.h and entity.h
234 Added fields sub and super to type_class for inheritance.
235 Added field main_irg to irprog.
238 Fixed some bugs in irgopt.c
239 Added some missing 'get_new_node' methods, so the new obstack contains
243 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
244 Solved some copy'n'paste problems. Deleted most debug-code!
245 Added comments to several files.
248 Fixed bug in _r_ constructors for all four Div operations.
249 Fixed bug in turn_into_tuple: didn't remember the block.
250 Tested transform_node.
253 Fixed some testprograms to new semantics of firm.
254 Added testprogram global_var_example.
255 Fixed a bug in irop: Size of Sel node was (entity *) instead of
256 sel_attr. Therefor array_heap_example aborted.
257 Also found a missing break in typewalk, case iro_Alloc.
258 Added a construct that unifies all things constructed by the lib
259 and needed to represent a program: irprog.ch
260 This contains a list of all types as well as a list of all ir graphs.
261 I added calls to initialization and constructors so that this is constructed
262 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
263 Removed strange block struct and constructor from ircons.c.
264 Moved routines for automatic Phi construction from irgmod to ircons.
265 Sorted functions in ircons to reflect the different interfaces.
266 Renamed dataseg to globals to be conformant with documentation.
267 Added conservation of current_ir_graph to irgopt.c.
268 Corrected bug in Makefiles: wrong path to directory ./inlude.
271 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
272 We should change the naming of the Block constructor.
273 Removed acces routines to attr. "closed" of Block.
274 Removed second implementation of new_ir_node from ircons and some comments
275 concerned with the now resolved cyclic dependency.
276 Fixed some bugs in irgopt so that the compilation goes through.
279 Changed the irnode attribut 'visit' into 'visited'.
280 Added some access functions, like get/set_irn_visit etc.
283 Renamed some access funtion in irgraph.*.
284 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
285 Added two attributes to the irgraph struct. The visited flags belongs
286 to a ir graph, not to a whole program.
289 A new optimization has been finished. The dead-node-elimination copies
290 the existing ir graph from one opstack to another. While walking the
291 graph, only the reachable nodes will be copied, so the "dead-nodes"
292 (unreachable in the controlflow) are removed.
295 Solved some problems in the 'copy_node' function. The in array was not
296 as easy as it seamed.
299 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
300 optimization, which is needed in the paramter list of 'irg_walk'.
303 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
304 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
308 Removed some files from the archive, after dependencies and usage are
310 - 'ir/common/strerror.c'
312 - 'ir/ident/xx_ident.h'
313 an empty file, only included by 'ident.c', but never used;
314 - 'ir/tv/label.c' and
316 contained a numeric counter;
317 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
318 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
319 In the old fiasco compiler, the label thing is used in the backend.
320 Search for 'babil' to see the usage.
321 Also removed the two attributes 'lab' and 'used' in the tarval struct.
324 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
325 afterwards some recursive includes, so libfirm works again.
328 Did a lot of changes, which I never commented until now (4.7.00).
330 * Added new result to Start node: Pointer to global data segment.
331 * Extended Semantics of SymConst node to represent information for the
333 * Added arithmeitc nodes (Shrs, Minus ...)
335 Rearranged the directory structure and adjusted the makefiles.
336 The directories contain:
337 ir: everything for the intermediate representation (better: src?)
338 /ir: the ir itself, and standard optimizations.
339 /tv: the target value module
340 /tr: the type and entity representation
341 /adt: abstract data types
342 /common: stuff needed by all other dirs
343 /debug: debugging Unterstuetzung
345 include: external files needen as includes
346 testprograms: examples to test the lib.
348 The makefiles generate files with extension .d that contain the dependencies
352 Added access routine to attribute link of irnode in irnode.ch.
353 Added get_negated_pnc to irnode.ch.
356 Added an iterator in iropt that calls the optimization for all nodes.
357 Copied optimize's code to optimize_in_place and removed deallocations.
358 Made set_irn_n in irnode.c public.
359 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
360 are allowded as cfgpredecessors to represent dead "incoming" control
362 Added call to optimize_in_place in mature_block. Is this useful?
365 Changed tests from comparing enums to comparing pointers. This is more
366 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
367 now get_irn_op == op_And
370 Compared equivalent_value to the one in the original fiasco.
371 Added a test in case iro_And.
372 Changed implementation of iro_Div. Added routines turn_into_tuple
373 and set_irn_op() in irgmod/irnode.
374 Changed implementation of irn_Minus (although commented out).
375 Now all features are ported or documented for this function.
378 Compared computed_value to the one in the original fiasco.
379 Added one further optimization in case iro_Proj.
380 Now all features are ported for this function.
383 Updated comments in ircons.h.
386 Changed possible attribute of SymConst from type_class to type.
387 SymConst size could be the size of a union, array, ...
390 Implemented two dumpers that dump type information and a graph with
394 Implemented a walker that walks over the type informatin that can
395 be reached from an ir node.
396 Added routine get_kind(firm_thing) in common.h, Added file common.c.
397 Added files typewalk.ch and routines to irdump.
398 Added visited flags and initialization to entity and all types.
399 Implemented some of the missing access routines in type.c, entity.c
402 Implemented constructor for ShrA.
404 Added routine that iterates the graph and verifies all nodes.
405 Added Phi_in stack to irgraph. This allows to build several
406 graphs at once with respect to the Phi building algorithm.
409 Implemented dumper for control flow graphs. Changed irr_* and dead_*
410 examples to dump cfg.
413 Implemeted explicit stack for the Phi node generation. See ircons.c.
416 added include string.h in xoprintf.c to get rid of warning:
417 implicit declaration of function `bcopy'
421 Added more cases to equivalent_node.
422 Portet gigo, identify, identify_remember.
423 The set/pset library can not handle several hash tables. At least,
424 compiling several procedures causes a segmentation fault during access
425 to the tables (oo_program_example). Need to work on this.
426 transform_node still needs to be ported.
427 some cases in equivalent_node are still missing.
429 To get it running I had to remove the call to optimize in the
430 new_Block constructor. It can only be called when the Block is
434 Introduced a walker that walks only over blocks. The asserts
435 might be too strict for general graphs, but so far it works.
436 For the walker I introduced an additional flag in the attribute
437 of Blocks, an a global block_visited variable (in irgraph.h).
438 Furhter I modularized dump_ir_node, implemented dump_ir_graph
439 with the existing walker, and added new routines to output a
441 Changed the examples to call the new dump routine.
444 Added auxiliary routines to ir_node:
445 skip_Proj, skip_Nop, is_Bad ...
446 Changed access routines to use get_irn_n instead of explicit array
447 accesses. Changed get_irn_n to call skip_Id, so that the access routines
448 never will return Id nodes.
451 Repaired Phi computation, changed new_r_Phi_in. Added test program to
452 test irregular controlflow.
455 Updated optimizations computed_value and equivalent_node to new
456 Syntax of FIRM nodes and to use access routines.
457 Added routine skip_Proj in irnode.
459 2.2.2000 Boris Boesler
460 Added files irgwalk.c and irgwalk.h. They include a simple function to
461 traverse an ir graph and execute pre and post functions to current node.
464 Added arrays with parameters and result types to the type informtion
465 of a procedure. This is needed for the code generation. Also added
466 the corresponding access routines.
467 Adapted the testprograms.
470 Found a bug / complication: the call order
471 get_value (makes Phi0, put's it into graph_arr)
472 set_value (overwrites Phi0 in graph_arr)
473 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
475 fails. Added test wether graph_arr is already set in phi_merge.
477 Added tons of comments to explain Phi generation -- the stack hack.
481 irdump now outputs the pnc_number for projs of Cmp nodes.
482 Added routine to access the pnc_string.
485 Added result "dataseg" to Start node, with all it's consequences.
486 We need this for the compiler lab to translate global variables.
487 Now they can be selected from the data segment, and the start
488 node supplies the pointer to this segment.
489 These changes are guarded by preprocessor variable UEBPRAKT in
491 Changed files: common.h, irgraph.ch, irnode.h
495 removed array_example, added array-heap_example and
496 array-stack_example and adapted makefile.
498 Entity now also allows type_method as owner. This is to model
499 the stack, Sel nodes that select a variable (array) from the
500 stack need an entity that describes what they select. This
501 entity gets the type of the enclosing procedure as owner.
504 Added future access routines in `irmode.[ch]' as comments,
505 that all attributes in the ir_mode struct can be user-defined.
506 Added access routines in `irgraph.[ch]', for all attributes.
509 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
510 Added `irvrfy.[ch]' to MAKEFILE
511 Added "inline" before access routines in `irnode.h', that no warnings
512 will appear furthermore.
513 Added three more access routines in `irmode.[ch]':
514 struct tarval *get_min_of_mode (ir_mode *mode);
515 struct tarval *get_max_of_mode (ir_mode *mode);
516 struct tarval *get_null_of_mode (ir_mode *mode);
519 Adaption of Alloc, Sel and Entity to new types:
520 Changed array_example to use type instead of type_class.
521 Changed entity to allow all types as owner instead of
522 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
523 Changed alloc to allow allocating variables of any type instead of
525 Adapted all testprograms to avoid warnings.
527 removed dtest ... from Makefile, replaced by test.
530 Added "run" to makefile, added array_example to makefile of testprograms.
531 Corrected testprogram array
532 Changed assert in irvrfy -- Conv.
projects / libfirm / blob