2 type_dump also dumps irg->ent
3 if_example: corrected nr of locals
6 irgopt: Correct copy of self pointer in start block.
7 irgopt: Correct treatment of loops: pre function in walker
8 breaks all possible loops in Phi and Block nodes.
9 irr_loop_example: wrong Return statement
10 Now I fixed all but one error: in memory_example.
11 This error showed a conceptual problem, so I wrote
12 a slightly different algorithm. This now runs for
14 dead_node_example: cse is buggy!! merges start and the
18 looking at bug in dead_node_elimination.
20 irnode: all get_..._arr functions changed
21 ircons: new_r_Block: set matured flag.
22 ircons: new_r_SymConst: needs mode_p for linkage_ptr_info.
23 adapted call_str_example to new concepts.
26 Implemented simpler Phi construction algorithm that constructs
27 correct code for three_cfpred_example in ircons. This algorithm
28 generates more Id nodes than the original algorithm and therefore
30 Also made some changes to optimizations of Not.
33 Fixed a bug, caused by the recursive use in type.h and entity.h.
34 Deleted the _TYPE_TYPEDEF_ and inserted the _ENTITY_TYPEDEF_ instead.
35 Fixed a problem in if_while testprogram, so it now works.
38 Fixed bug in optimize(). Returned Null instead n if
39 get_optimize() == false.
42 Added some access routines in type.[hc]. Solved a recursive definition
43 of type_class struct, entity struct and type union.
46 Separated entity header into pure functional header and header
50 ... a bunch small changes not documented
53 Changed output of oo_prog_example: now uses the internal list
54 of all irgs. Had to implement some of the access routines for
55 that. Also fixed a bug in irdump. Main routines did not use
56 current_ir_graph properly.
59 Implemented some missing parts in irgopt.
60 Added field irg to entity. Only valid if entity is a method.
61 Had to resove a cyclic de[endency between irgraph.h and entity.h
63 Added fields sub and super to type_class for inheritance.
64 Added field main_irg to irprog.
67 Fixed some bugs in irgopt.c
68 Added some missing 'get_new_node' methods, so the new obstack contains
72 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
73 Solved some copy'n'paste problems. Deleted most debug-code!
74 Added comments to several files.
77 Fixed bug in _r_ constructors for all four Div operations.
78 Fixed bug in turn_into_tuple: didn't remember the block.
79 Tested transform_node.
82 Fixed some testprograms to new semantics of firm.
83 Added testprogram global_var_example.
84 Fixed a bug in irop: Size of Sel node was (entity *) instead of
85 sel_attr. Therefor array_heap_example aborted.
86 Also found a missing break in typewalk, case iro_Alloc.
87 Added a construct that unifies all things constructed by the lib
88 and needed to represent a program: irprog.ch
89 This contains a list of all types as well as a list of all ir graphs.
90 I added calls to initialization and constructors so that this is constructed
91 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
92 Removed strange block struct and constructor from ircons.c.
93 Moved routines for automatic Phi construction from irgmod to ircons.
94 Sorted functions in ircons to reflect the different interfaces.
95 Renamed dataseg to globals to be conformant with documentation.
96 Added conservation of current_ir_graph to irgopt.c.
97 Corrected bug in Makefiles: wrong path to directory ./inlude.
100 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
101 We should change the naming of the Block constructor.
102 Removed acces routines to attr. "closed" of Block.
103 Removed second implementation of new_ir_node from ircons and some comments
104 concerned with the now resolved cyclic dependency.
105 Fixed some bugs in irgopt so that the compilation goes through.
108 Changed the irnode attribut 'visit' into 'visited'.
109 Added some access functions, like get/set_irn_visit etc.
112 Renamed some access funtion in irgraph.*.
113 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
114 Added two attributes to the irgraph struct. The visited flags belongs
115 to a ir graph, not to a whole program.
118 A new optimization has been finished. The dead-node-elimination copies
119 the existing ir graph from one opstack to another. While walking the
120 graph, only the reachable nodes will be copied, so the "dead-nodes"
121 (unreachable in the controlflow) are removed.
124 Solved some problems in the 'copy_node' function. The in array was not
125 as easy as it seamed.
128 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
129 optimization, which is needed in the paramter list of 'irg_walk'.
132 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
133 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
137 Removed some files from the archive, after dependencies and usage are
139 - 'ir/common/strerror.c'
141 - 'ir/ident/xx_ident.h'
142 an empty file, only included by 'ident.c', but never used;
143 - 'ir/tv/label.c' and
145 contained a numeric counter;
146 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
147 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
148 In the old fiasco compiler, the label thing is used in the backend.
149 Search for 'babil' to see the usage.
150 Also removed the two attributes 'lab' and 'used' in the tarval struct.
153 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
154 afterwards some recursive includes, so libfirm works again.
157 Did a lot of changes, which I never commented until now (4.7.00).
159 * Added new result to Start node: Pointer to global data segment.
160 * Extended Semantics of SymConst node to represent information for the
162 * Added arithmeitc nodes (Shrs, Minus ...)
164 Rearranged the directory structure and adjusted the makefiles.
165 The directories contain:
166 ir: everything for the intermediate representation (better: src?)
167 /ir: the ir itself, and standard optimizations.
168 /tv: the target value module
169 /tr: the type and entity representation
170 /adt: abstract data types
171 /common: stuff needed by all other dirs
172 /debug: debugging Unterstuetzung
174 include: external files needen as includes
175 testprograms: examples to test the lib.
177 The makefiles generate files with extension .d that contain the dependencies
181 Added access routine to attribute link of irnode in irnode.ch.
182 Added get_negated_pnc to irnode.ch.
185 Added an iterator in iropt that calls the optimization for all nodes.
186 Copied optimize's code to optimize_in_place and removed deallocations.
187 Made set_irn_n in irnode.c public.
188 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
189 are allowded as cfgpredecessors to represent dead "incoming" control
191 Added call to optimize_in_place in mature_block. Is this useful?
194 Changed tests from comparing enums to comparing pointers. This is more
195 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
196 now get_irn_op == op_And
199 Compared equivalent_value to the one in the original fiasco.
200 Added a test in case iro_And.
201 Changed implementation of iro_Div. Added routines turn_into_tuple
202 and set_irn_op() in irgmod/irnode.
203 Changed implementation of irn_Minus (although commented out).
204 Now all features are ported or documented for this function.
207 Compared computed_value to the one in the original fiasco.
208 Added one further optimization in case iro_Proj.
209 Now all features are ported for this function.
212 Updated comments in ircons.h.
215 Changed possible attribute of SymConst from type_class to type.
216 SymConst size could be the size of a union, array, ...
219 Implemented two dumpers that dump type information and a graph with
223 Implemented a walker that walks over the type informatin that can
224 be reached from an ir node.
225 Added routine get_kind(firm_thing) in common.h, Added file common.c.
226 Added files typewalk.ch and routines to irdump.
227 Added visited flags and initialization to entity and all types.
228 Implemented some of the missing access routines in type.c, entity.c
231 Implemented constructor for ShrA.
233 Added routine that iterates the graph and verifies all nodes.
234 Added Phi_in stack to irgraph. This allows to build several
235 graphs at once with respect to the Phi building algorithm.
238 Implemented dumper for control flow graphs. Changed irr_* and dead_*
239 examples to dump cfg.
242 Implemeted explicit stack for the Phi node generation. See ircons.c.
245 added include string.h in xoprintf.c to get rid of warning:
246 implicit declaration of function `bcopy'
250 Added more cases to equivalent_node.
251 Portet gigo, identify, identify_remember.
252 The set/pset library can not handle several hash tables. At least,
253 compiling several procedures causes a segmentation fault during access
254 to the tables (oo_program_example). Need to work on this.
255 transform_node still needs to be ported.
256 some cases in equivalent_node are still missing.
258 To get it running I had to remove the call to optimize in the
259 new_Block constructor. It can only be called when the Block is
263 Introduced a walker that walks only over blocks. The asserts
264 might be too strict for general graphs, but so far it works.
265 For the walker I introduced an additional flag in the attribute
266 of Blocks, an a global block_visited variable (in irgraph.h).
267 Furhter I modularized dump_ir_node, implemented dump_ir_graph
268 with the existing walker, and added new routines to output a
270 Changed the examples to call the new dump routine.
273 Added auxiliary routines to ir_node:
274 skip_Proj, skip_Nop, is_Bad ...
275 Changed access routines to use get_irn_n instead of explicit array
276 accesses. Changed get_irn_n to call skip_Id, so that the access routines
277 never will return Id nodes.
280 Repaired Phi computation, changed new_r_Phi_in. Added test program to
281 test irregular controlflow.
284 Updated optimizations computed_value and equivalent_node to new
285 Syntax of FIRM nodes and to use access routines.
286 Added routine skip_Proj in irnode.
288 2.2.2000 Boris Boesler
289 Added files irgwalk.c and irgwalk.h. They include a simple function to
290 traverse an ir graph and execute pre and post functions to current node.
293 Added arrays with parameters and result types to the type informtion
294 of a procedure. This is needed for the code generation. Also added
295 the corresponding access routines.
296 Adapted the testprograms.
299 Found a bug / complication: the call order
300 get_value (makes Phi0, put's it into graph_arr)
301 set_value (overwrites Phi0 in graph_arr)
302 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
304 fails. Added test wether graph_arr is already set in phi_merge.
306 Added tons of comments to explain Phi generation -- the stack hack.
310 irdump now outputs the pnc_number for projs of Cmp nodes.
311 Added routine to access the pnc_string.
314 Added result "dataseg" to Start node, with all it's consequences.
315 We need this for the compiler lab to translate global variables.
316 Now they can be selected from the data segment, and the start
317 node supplies the pointer to this segment.
318 These changes are guarded by preprocessor variable UEBPRAKT in
320 Changed files: common.h, irgraph.ch, irnode.h
324 removed array_example, added array-heap_example and
325 array-stack_example and adapted makefile.
327 Entity now also allows type_method as owner. This is to model
328 the stack, Sel nodes that select a variable (array) from the
329 stack need an entity that describes what they select. This
330 entity gets the type of the enclosing procedure as owner.
333 Added future access routines in `irmode.[ch]' as comments,
334 that all attributes in the ir_mode struct can be user-defined.
335 Added access routines in `irgraph.[ch]', for all attributes.
338 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
339 Added `irvrfy.[ch]' to MAKEFILE
340 Added "inline" before access routines in `irnode.h', that no warnings
341 will appear furthermore.
342 Added three more access routines in `irmode.[ch]':
343 struct tarval *get_min_of_mode (ir_mode *mode);
344 struct tarval *get_max_of_mode (ir_mode *mode);
345 struct tarval *get_null_of_mode (ir_mode *mode);
348 Adaption of Alloc, Sel and Entity to new types:
349 Changed array_example to use type instead of type_class.
350 Changed entity to allow all types as owner instead of
351 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
352 Changed alloc to allow allocating variables of any type instead of
354 Adapted all testprograms to avoid warnings.
356 removed dtest ... from Makefile, replaced by test.
359 Added "run" to makefile, added array_example to makefile of testprograms.
360 Corrected testprogram array
361 Changed assert in irvrfy -- Conv.
projects / libfirm / blob