3 added set/get_SymConst_type_or_id.
4 added field offset to entity.
7 Some changes to make the lib better portable
10 Initialize max_node_nr in irprog.
13 Now outputs warning if faulty type in irdump, dump_type_info.
14 Explicit string termination in irdump, vcg_open.
17 Added external to declaration of irp.
18 Added typedef before pns and pnc_number.
19 irmode.c, init_mode(): We need to memset all new modes as
20 tarval_vrfy reads fields before they are initialized: It
21 compares to min/max when tarvals for min/max are allocated!
24 Changed parameter of Methods in type.h and type.c from
25 class to clss. Class is a C++ keyword.
28 Changed some testprograms to accomodate Uebprakt.
31 Finished implementation of dump_all_types.
32 Added new testprogram inheritance_example.
35 Added seven access routines in type.[hc]:
36 get_class_n_member, get_class_n_subtype, get_class_n_supertype,
37 get_strct_n_member, add_strct_member, get_strct_member and set_strct_member.
38 Fixed the type_walk_2 for those seven routines.
41 Added irdump routine dump_all_types.
42 Did changes to irprog, type, typewalk to achieve this.
43 typewalk needs to walk along members, sub and supertypes, this
44 is still missing! irdump then needs to output these edges.
46 ======================================================================
47 ==================== New version: 0.2.5 ==============================
48 ======================================================================
51 Made new Version: 0.2.5
53 15.8.2000 Goetz until 3.9.00
54 Separated irnode.h and many others into two files: one public
56 Added funcionality to extract headers for lib.
59 type_dump also dumps irg->ent
60 if_example: corrected nr of locals
63 irgopt: Correct copy of self pointer in start block.
64 irgopt: Correct treatment of loops: pre function in walker
65 breaks all possible loops in Phi and Block nodes.
66 irr_loop_example: wrong Return statement
67 Now I fixed all but one error: in memory_example.
68 This error showed a conceptual problem, so I wrote
69 a slightly different algorithm. This now runs for
71 dead_node_example: cse is buggy!! merges start and the
75 looking at bug in dead_node_elimination.
77 irnode: all get_..._arr functions changed
78 ircons: new_r_Block: set matured flag.
79 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
80 adapted call_str_example to new concepts.
83 Implemented simpler Phi construction algorithm that constructs
84 correct code for three_cfpred_example in ircons. This algorithm
85 generates more Id nodes than the original algorithm and therefore
87 Also made some changes to optimizations of Not.
90 Fixed a bug, caused by the recursive use in type.h and entity.h.
91 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
92 Fixed a problem in if_while testprogram, so it now works.
95 Fixed bug in optimize(). Returned Null instead n if
96 get_optimize() == false.
99 Added some access routines in type.[hc]. Solved a recursive definition
100 of type_class struct, entity struct and type union.
103 Separated entity header into pure functional header and header
107 ... a bunch small changes not documented
110 Changed output of oo_prog_example: now uses the internal list
111 of all irgs. Had to implement some of the access routines for
112 that. Also fixed a bug in irdump. Main routines did not use
113 current_ir_graph properly.
116 Implemented some missing parts in irgopt.
117 Added field irg to entity. Only valid if entity is a method.
118 Had to resove a cyclic de[endency between irgraph.h and entity.h
120 Added fields sub and super to type_class for inheritance.
121 Added field main_irg to irprog.
124 Fixed some bugs in irgopt.c
125 Added some missing 'get_new_node' methods, so the new obstack contains
129 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
130 Solved some copy'n'paste problems. Deleted most debug-code!
131 Added comments to several files.
134 Fixed bug in _r_ constructors for all four Div operations.
135 Fixed bug in turn_into_tuple: didn't remember the block.
136 Tested transform_node.
139 Fixed some testprograms to new semantics of firm.
140 Added testprogram global_var_example.
141 Fixed a bug in irop: Size of Sel node was (entity *) instead of
142 sel_attr. Therefor array_heap_example aborted.
143 Also found a missing break in typewalk, case iro_Alloc.
144 Added a construct that unifies all things constructed by the lib
145 and needed to represent a program: irprog.ch
146 This contains a list of all types as well as a list of all ir graphs.
147 I added calls to initialization and constructors so that this is constructed
148 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
149 Removed strange block struct and constructor from ircons.c.
150 Moved routines for automatic Phi construction from irgmod to ircons.
151 Sorted functions in ircons to reflect the different interfaces.
152 Renamed dataseg to globals to be conformant with documentation.
153 Added conservation of current_ir_graph to irgopt.c.
154 Corrected bug in Makefiles: wrong path to directory ./inlude.
157 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
158 We should change the naming of the Block constructor.
159 Removed acces routines to attr. "closed" of Block.
160 Removed second implementation of new_ir_node from ircons and some comments
161 concerned with the now resolved cyclic dependency.
162 Fixed some bugs in irgopt so that the compilation goes through.
165 Changed the irnode attribut 'visit' into 'visited'.
166 Added some access functions, like get/set_irn_visit etc.
169 Renamed some access funtion in irgraph.*.
170 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
171 Added two attributes to the irgraph struct. The visited flags belongs
172 to a ir graph, not to a whole program.
175 A new optimization has been finished. The dead-node-elimination copies
176 the existing ir graph from one opstack to another. While walking the
177 graph, only the reachable nodes will be copied, so the "dead-nodes"
178 (unreachable in the controlflow) are removed.
181 Solved some problems in the 'copy_node' function. The in array was not
182 as easy as it seamed.
185 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
186 optimization, which is needed in the paramter list of 'irg_walk'.
189 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
190 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
194 Removed some files from the archive, after dependencies and usage are
196 - 'ir/common/strerror.c'
198 - 'ir/ident/xx_ident.h'
199 an empty file, only included by 'ident.c', but never used;
200 - 'ir/tv/label.c' and
202 contained a numeric counter;
203 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
204 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
205 In the old fiasco compiler, the label thing is used in the backend.
206 Search for 'babil' to see the usage.
207 Also removed the two attributes 'lab' and 'used' in the tarval struct.
210 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
211 afterwards some recursive includes, so libfirm works again.
214 Did a lot of changes, which I never commented until now (4.7.00).
216 * Added new result to Start node: Pointer to global data segment.
217 * Extended Semantics of SymConst node to represent information for the
219 * Added arithmeitc nodes (Shrs, Minus ...)
221 Rearranged the directory structure and adjusted the makefiles.
222 The directories contain:
223 ir: everything for the intermediate representation (better: src?)
224 /ir: the ir itself, and standard optimizations.
225 /tv: the target value module
226 /tr: the type and entity representation
227 /adt: abstract data types
228 /common: stuff needed by all other dirs
229 /debug: debugging Unterstuetzung
231 include: external files needen as includes
232 testprograms: examples to test the lib.
234 The makefiles generate files with extension .d that contain the dependencies
238 Added access routine to attribute link of irnode in irnode.ch.
239 Added get_negated_pnc to irnode.ch.
242 Added an iterator in iropt that calls the optimization for all nodes.
243 Copied optimize's code to optimize_in_place and removed deallocations.
244 Made set_irn_n in irnode.c public.
245 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
246 are allowded as cfgpredecessors to represent dead "incoming" control
248 Added call to optimize_in_place in mature_block. Is this useful?
251 Changed tests from comparing enums to comparing pointers. This is more
252 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
253 now get_irn_op == op_And
256 Compared equivalent_value to the one in the original fiasco.
257 Added a test in case iro_And.
258 Changed implementation of iro_Div. Added routines turn_into_tuple
259 and set_irn_op() in irgmod/irnode.
260 Changed implementation of irn_Minus (although commented out).
261 Now all features are ported or documented for this function.
264 Compared computed_value to the one in the original fiasco.
265 Added one further optimization in case iro_Proj.
266 Now all features are ported for this function.
269 Updated comments in ircons.h.
272 Changed possible attribute of SymConst from type_class to type.
273 SymConst size could be the size of a union, array, ...
276 Implemented two dumpers that dump type information and a graph with
280 Implemented a walker that walks over the type informatin that can
281 be reached from an ir node.
282 Added routine get_kind(firm_thing) in common.h, Added file common.c.
283 Added files typewalk.ch and routines to irdump.
284 Added visited flags and initialization to entity and all types.
285 Implemented some of the missing access routines in type.c, entity.c
288 Implemented constructor for ShrA.
290 Added routine that iterates the graph and verifies all nodes.
291 Added Phi_in stack to irgraph. This allows to build several
292 graphs at once with respect to the Phi building algorithm.
295 Implemented dumper for control flow graphs. Changed irr_* and dead_*
296 examples to dump cfg.
299 Implemeted explicit stack for the Phi node generation. See ircons.c.
302 added include string.h in xoprintf.c to get rid of warning:
303 implicit declaration of function `bcopy'
307 Added more cases to equivalent_node.
308 Portet gigo, identify, identify_remember.
309 The set/pset library can not handle several hash tables. At least,
310 compiling several procedures causes a segmentation fault during access
311 to the tables (oo_program_example). Need to work on this.
312 transform_node still needs to be ported.
313 some cases in equivalent_node are still missing.
315 To get it running I had to remove the call to optimize in the
316 new_Block constructor. It can only be called when the Block is
320 Introduced a walker that walks only over blocks. The asserts
321 might be too strict for general graphs, but so far it works.
322 For the walker I introduced an additional flag in the attribute
323 of Blocks, an a global block_visited variable (in irgraph.h).
324 Furhter I modularized dump_ir_node, implemented dump_ir_graph
325 with the existing walker, and added new routines to output a
327 Changed the examples to call the new dump routine.
330 Added auxiliary routines to ir_node:
331 skip_Proj, skip_Nop, is_Bad ...
332 Changed access routines to use get_irn_n instead of explicit array
333 accesses. Changed get_irn_n to call skip_Id, so that the access routines
334 never will return Id nodes.
337 Repaired Phi computation, changed new_r_Phi_in. Added test program to
338 test irregular controlflow.
341 Updated optimizations computed_value and equivalent_node to new
342 Syntax of FIRM nodes and to use access routines.
343 Added routine skip_Proj in irnode.
345 2.2.2000 Boris Boesler
346 Added files irgwalk.c and irgwalk.h. They include a simple function to
347 traverse an ir graph and execute pre and post functions to current node.
350 Added arrays with parameters and result types to the type informtion
351 of a procedure. This is needed for the code generation. Also added
352 the corresponding access routines.
353 Adapted the testprograms.
356 Found a bug / complication: the call order
357 get_value (makes Phi0, put's it into graph_arr)
358 set_value (overwrites Phi0 in graph_arr)
359 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
361 fails. Added test wether graph_arr is already set in phi_merge.
363 Added tons of comments to explain Phi generation -- the stack hack.
367 irdump now outputs the pnc_number for projs of Cmp nodes.
368 Added routine to access the pnc_string.
371 Added result "dataseg" to Start node, with all it's consequences.
372 We need this for the compiler lab to translate global variables.
373 Now they can be selected from the data segment, and the start
374 node supplies the pointer to this segment.
375 These changes are guarded by preprocessor variable UEBPRAKT in
377 Changed files: common.h, irgraph.ch, irnode.h
381 removed array_example, added array-heap_example and
382 array-stack_example and adapted makefile.
384 Entity now also allows type_method as owner. This is to model
385 the stack, Sel nodes that select a variable (array) from the
386 stack need an entity that describes what they select. This
387 entity gets the type of the enclosing procedure as owner.
390 Added future access routines in `irmode.[ch]' as comments,
391 that all attributes in the ir_mode struct can be user-defined.
392 Added access routines in `irgraph.[ch]', for all attributes.
395 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
396 Added `irvrfy.[ch]' to MAKEFILE
397 Added "inline" before access routines in `irnode.h', that no warnings
398 will appear furthermore.
399 Added three more access routines in `irmode.[ch]':
400 struct tarval *get_min_of_mode (ir_mode *mode);
401 struct tarval *get_max_of_mode (ir_mode *mode);
402 struct tarval *get_null_of_mode (ir_mode *mode);
405 Adaption of Alloc, Sel and Entity to new types:
406 Changed array_example to use type instead of type_class.
407 Changed entity to allow all types as owner instead of
408 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
409 Changed alloc to allow allocating variables of any type instead of
411 Adapted all testprograms to avoid warnings.
413 removed dtest ... from Makefile, replaced by test.
416 Added "run" to makefile, added array_example to makefile of testprograms.
417 Corrected testprogram array
418 Changed assert in irvrfy -- Conv.
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