2 Fixed some bugs in irgopt.c
3 Added some missing 'get_new_node' methods, so the new obstack contains
7 Renamed ir_vrfy to irn_vrfy and vrfy_graphg to irg_vrfy.
8 Solved some copy'n'paste problems. Deleted most debug-code!
9 Added comments to several files.
12 Fixed bug in _r_ constructors for all four Div operations.
13 Fixed bug in turn_into_tuple: didn't remember the block.
14 Tested transform_node.
17 Fixed some testprograms to new semantics of firm.
18 Added testprogram global_var_example.
19 Fixed a bug in irop: Size of Sel node was (entity *) instead of
20 sel_attr. Therefor array_heap_example aborted.
21 Also found a missing break in typewalk, case iro_Alloc.
22 Added a construct that unifies all things constructed by the lib
23 and needed to represent a program: irprog.ch
24 This contains a list of all types as well as a list of all ir graphs.
25 I added calls to initialization and constructors so that this is constructed
26 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
27 Removed strange block struct and constructor from ircons.c.
28 Moved routines for automatic Phi construction from irgmod to ircons.
29 Sorted functions in ircons to reflect the different interfaces.
30 Renamed dataseg to globals to be conformant with documentation.
31 Added conservation of current_ir_graph to irgopt.c.
32 Corrected bug in Makefiles: wrong path to directory ./inlude.
35 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
36 We should change the naming of the Block constructor.
37 Removed acces routines to attr. "closed" of Block.
38 Removed second implementation of new_ir_node from ircons and some comments
39 concerned with the now resolved cyclic dependency.
40 Fixed some bugs in irgopt so that the compilation goes through.
43 Changed the irnode attribut 'visit' into 'visited'.
44 Added some access functions, like get/set_irn_visit etc.
47 Renamed some access funtion in irgraph.*.
48 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
49 Added two attributes to the irgraph struct. The visited flags belongs
50 to a ir graph, not to a whole program.
53 A new optimization has been finished. The dead-node-elimination copies
54 the existing ir graph from one opstack to another. While walking the
55 graph, only the reachable nodes will be copied, so the "dead-nodes"
56 (unreachable in the controlflow) are removed.
59 Solved some problems in the 'copy_node' function. The in array was not
63 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
64 optimization, which is needed in the paramter list of 'irg_walk'.
67 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
68 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
72 Removed some files from the archive, after dependencies and usage are
74 - 'ir/common/strerror.c'
76 - 'ir/ident/xx_ident.h'
77 an empty file, only included by 'ident.c', but never used;
80 contained a numeric counter;
81 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
82 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
83 In the old fiasco compiler, the label thing is used in the backend.
84 Search for 'babil' to see the usage.
85 Also removed the two attributes 'lab' and 'used' in the tarval struct.
88 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
89 afterwards some recursive includes, so libfirm works again.
92 Did a lot of changes, which I never commented until now (4.7.00).
94 * Added new result to Start node: Pointer to global data segment.
95 * Extended Semantics of SymConst node to represent information for the
97 * Added arithmeitc nodes (Shrs, Minus ...)
99 Rearranged the directory structure and adjusted the makefiles.
100 The directories contain:
101 ir: everything for the intermediate representation (better: src?)
102 /ir: the ir itself, and standard optimizations.
103 /tv: the target value module
104 /tr: the type and entity representation
105 /adt: abstract data types
106 /common: stuff needed by all other dirs
107 /debug: debugging Unterstuetzung
109 include: external files needen as includes
110 testprograms: examples to test the lib.
112 The makefiles generate files with extension .d that contain the dependencies
116 Added access routine to attribute link of irnode in irnode.ch.
117 Added get_negated_pnc to irnode.ch.
120 Added an iterator in iropt that calls the optimization for all nodes.
121 Copied optimize's code to optimize_in_place and removed deallocations.
122 Made set_irn_n in irnode.c public.
123 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
124 are allowded as cfgpredecessors to represent dead "incoming" control
126 Added call to optimize_in_place in mature_block. Is this useful?
129 Changed tests from comparing enums to comparing pointers. This is more
130 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
131 now get_irn_op == op_And
134 Compared equivalent_value to the one in the original fiasco.
135 Added a test in case iro_And.
136 Changed implementation of iro_Div. Added routines turn_into_tuple
137 and set_irn_op() in irgmod/irnode.
138 Changed implementation of irn_Minus (although commented out).
139 Now all features are ported or documented for this function.
142 Compared computed_value to the one in the original fiasco.
143 Added one further optimization in case iro_Proj.
144 Now all features are ported for this function.
147 Updated comments in ircons.h.
150 Changed possible attribute of SymConst from type_class to type.
151 SymConst size could be the size of a union, array, ...
154 Implemented two dumpers that dump type information and a graph with
158 Implemented a walker that walks over the type informatin that can
159 be reached from an ir node.
160 Added routine get_kind(firm_thing) in common.h, Added file common.c.
161 Added files typewalk.ch and routines to irdump.
162 Added visited flags and initialization to entity and all types.
163 Implemented some of the missing access routines in type.c, entity.c
166 Implemented constructor for ShrA.
168 Added routine that iterates the graph and verifies all nodes.
169 Added Phi_in stack to irgraph. This allows to build several
170 graphs at once with respect to the Phi building algorithm.
173 Implemented dumper for control flow graphs. Changed irr_* and dead_*
174 examples to dump cfg.
177 Implemeted explicit stack for the Phi node generation. See ircons.c.
180 added include string.h in xoprintf.c to get rid of warning:
181 implicit declaration of function `bcopy'
185 Added more cases to equivalent_node.
186 Portet gigo, identify, identify_remember.
187 The set/pset library can not handle several hash tables. At least,
188 compiling several procedures causes a segmentation fault during access
189 to the tables (oo_program_example). Need to work on this.
190 transform_node still needs to be ported.
191 some cases in equivalent_node are still missing.
193 To get it running I had to remove the call to optimize in the
194 new_Block constructor. It can only be called when the Block is
198 Introduced a walker that walks only over blocks. The asserts
199 might be too strict for general graphs, but so far it works.
200 For the walker I introduced an additional flag in the attribute
201 of Blocks, an a global block_visited variable (in irgraph.h).
202 Furhter I modularized dump_ir_node, implemented dump_ir_graph
203 with the existing walker, and added new routines to output a
205 Changed the examples to call the new dump routine.
208 Added auxiliary routines to ir_node:
209 skip_Proj, skip_Nop, is_Bad ...
210 Changed access routines to use get_irn_n instead of explicit array
211 accesses. Changed get_irn_n to call skip_Id, so that the access routines
212 never will return Id nodes.
215 Repaired Phi computation, changed new_r_Phi_in. Added test program to
216 test irregular controlflow.
219 Updated optimizations computed_value and equivalent_node to new
220 Syntax of FIRM nodes and to use access routines.
221 Added routine skip_Proj in irnode.
223 2.2.2000 Boris Boesler
224 Added files irgwalk.c and irgwalk.h. They include a simple function to
225 traverse an ir graph and execute pre and post functions to current node.
228 Added arrays with parameters and result types to the type informtion
229 of a procedure. This is needed for the code generation. Also added
230 the corresponding access routines.
231 Adapted the testprograms.
234 Found a bug / complication: the call order
235 get_value (makes Phi0, put's it into graph_arr)
236 set_value (overwrites Phi0 in graph_arr)
237 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
239 fails. Added test wether graph_arr is already set in phi_merge.
241 Added tons of comments to explain Phi generation -- the stack hack.
245 irdump now outputs the pnc_number for projs of Cmp nodes.
246 Added routine to access the pnc_string.
249 Added result "dataseg" to Start node, with all it's consequences.
250 We need this for the compiler lab to translate global variables.
251 Now they can be selected from the data segment, and the start
252 node supplies the pointer to this segment.
253 These changes are guarded by preprocessor variable UEBPRAKT in
255 Changed files: common.h, irgraph.ch, irnode.h
259 removed array_example, added array-heap_example and
260 array-stack_example and adapted makefile.
262 Entity now also allows type_method as owner. This is to model
263 the stack, Sel nodes that select a variable (array) from the
264 stack need an entity that describes what they select. This
265 entity gets the type of the enclosing procedure as owner.
268 Added future access routines in `irmode.[ch]' as comments,
269 that all attributes in the ir_mode struct can be user-defined.
270 Added access routines in `irgraph.[ch]', for all attributes.
273 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
274 Added `irvrfy.[ch]' to MAKEFILE
275 Added "inline" before access routines in `irnode.h', that no warnings
276 will appear furthermore.
277 Added three more access routines in `irmode.[ch]':
278 struct tarval *get_min_of_mode (ir_mode *mode);
279 struct tarval *get_max_of_mode (ir_mode *mode);
280 struct tarval *get_null_of_mode (ir_mode *mode);
283 Adaption of Alloc, Sel and Entity to new types:
284 Changed array_example to use type instead of type_class.
285 Changed entity to allow all types as owner instead of
286 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
287 Changed alloc to allow allocating variables of any type instead of
289 Adapted all testprograms to avoid warnings.
291 removed dtest ... from Makefile, replaced by test.
294 Added "run" to makefile, added array_example to makefile of testprograms.
295 Corrected testprogram array
296 Changed assert in irvrfy -- Conv.
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