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