2 Fixed some testprograms to new semantics of firm.
3 Added testprogram global_var_example.
6 Fixed a bug in irop: Size of Sel node was (entity *) instead of
7 sel_attr. Therefor array_heap_example aborted.
8 Also found a missing break in typewalk, case iro_Alloc.
11 Added a construct that unifies all things constructed by the lib
12 and needed to represent a program: irprog.ch
13 This contains a list of all types as well as a list of all ir graphs.
14 I added calls to initialization and constructors so that this is constructed
15 automatically. I changed firm.c, type.c, irgraph.c and ev. more.
18 Removed strange block struct and constructor from ircons.c.
19 Moved routines for automatic Phi construction from irgmod to ircons.
20 Sorted functions in ircons to reflect the different interfaces.
21 Renamed dataseg to globals to be conformant with documentation.
22 Added conservation of current_ir_graph to irgopt.c.
23 Corrected bug in Makefiles: wrong path to directory ./inlude.
26 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
27 We should change the naming of the Block constructor.
30 Removed acces routines to attr. "closed" of Block.
33 Removed second implementation of new_ir_node from ircons and some comments
34 concerned with the now resolved cyclic dependency.
35 Fixed some bugs in irgopt so that the compilation goes through.
38 Changed the irnode attribut 'visit' into 'visited'.
39 Added some access functions, like get/set_irn_visit etc.
42 Renamed some access funtion in irgraph.*.
43 Deleted two global flags (ir_visited and block_visited) from irgraph.*.
44 Added two attributes to the irgraph struct. The visited flags belongs
45 to a ir graph, not to a whole program.
48 A new optimization has been finished. The dead-node-elimination copies
49 the existing ir graph from one opstack to another. While walking the
50 graph, only the reachable nodes will be copied, so the "dead-nodes"
51 (unreachable in the controlflow) are removed.
54 Solved some problems in the 'copy_node' function. The in array was not
58 Wrote a new 'post' funtion, for future use in 'dead-node-elimination'
59 optimization, which is needed in the paramter list of 'irg_walk'.
62 Moved 'optimze_in_place_wrapper' from iropt.* tothe new files irgopt.*.
63 New functions 'local_optimze_graph' and 'dead_node_elimination' are added,
67 Removed some files from the archive, after dependencies and usage are
69 - 'ir/common/strerror.c'
71 - 'ir/ident/xx_ident.h'
72 an empty file, only included by 'ident.c', but never used;
75 contained a numeric counter;
76 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
77 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
78 In the old fiasco compiler, the label thing is used in the backend.
79 Search for 'babil' to see the usage.
80 Also removed the two attributes 'lab' and 'used' in the tarval struct.
83 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
84 afterwards some recursive includes, so libfirm works again.
87 Did a lot of changes, which I never commented until now (4.7.00).
89 * Added new result to Start node: Pointer to global data segment.
90 * Extended Semantics of SymConst node to represent information for the
92 * Added arithmeitc nodes (Shrs, Minus ...)
94 Rearranged the directory structure and adjusted the makefiles.
95 The directories contain:
96 ir: everything for the intermediate representation (better: src?)
97 /ir: the ir itself, and standard optimizations.
98 /tv: the target value module
99 /tr: the type and entity representation
100 /adt: abstract data types
101 /common: stuff needed by all other dirs
102 /debug: debugging Unterstuetzung
104 include: external files needen as includes
105 testprograms: examples to test the lib.
107 The makefiles generate files with extension .d that contain the dependencies
111 Added access routine to attribute link of irnode in irnode.ch.
112 Added get_negated_pnc to irnode.ch.
115 Added an iterator in iropt that calls the optimization for all nodes.
116 Copied optimize's code to optimize_in_place and removed deallocations.
117 Made set_irn_n in irnode.c public.
118 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
119 are allowded as cfgpredecessors to represent dead "incoming" control
121 Added call to optimize_in_place in mature_block. Is this useful?
124 Changed tests from comparing enums to comparing pointers. This is more
125 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
126 now get_irn_op == op_And
129 Compared equivalent_value to the one in the original fiasco.
130 Added a test in case iro_And.
131 Changed implementation of iro_Div. Added routines turn_into_tuple
132 and set_irn_op() in irgmod/irnode.
133 Changed implementation of irn_Minus (although commented out).
134 Now all features are ported or documented for this function.
137 Compared computed_value to the one in the original fiasco.
138 Added one further optimization in case iro_Proj.
139 Now all features are ported for this function.
142 Updated comments in ircons.h.
145 Changed possible attribute of SymConst from type_class to type.
146 SymConst size could be the size of a union, array, ...
149 Implemented two dumpers that dump type information and a graph with
153 Implemented a walker that walks over the type informatin that can
154 be reached from an ir node.
155 Added routine get_kind(firm_thing) in common.h, Added file common.c.
156 Added files typewalk.ch and routines to irdump.
157 Added visited flags and initialization to entity and all types.
158 Implemented some of the missing access routines in type.c, entity.c
161 Implemented constructor for ShrA.
163 Added routine that iterates the graph and verifies all nodes.
164 Added Phi_in stack to irgraph. This allows to build several
165 graphs at once with respect to the Phi building algorithm.
168 Implemented dumper for control flow graphs. Changed irr_* and dead_*
169 examples to dump cfg.
172 Implemeted explicit stack for the Phi node generation. See ircons.c.
175 added include string.h in xoprintf.c to get rid of warning:
176 implicit declaration of function `bcopy'
180 Added more cases to equivalent_node.
181 Portet gigo, identify, identify_remember.
182 The set/pset library can not handle several hash tables. At least,
183 compiling several procedures causes a segmentation fault during access
184 to the tables (oo_program_example). Need to work on this.
185 transform_node still needs to be ported.
186 some cases in equivalent_node are still missing.
188 To get it running I had to remove the call to optimize in the
189 new_Block constructor. It can only be called when the Block is
193 Introduced a walker that walks only over blocks. The asserts
194 might be too strict for general graphs, but so far it works.
195 For the walker I introduced an additional flag in the attribute
196 of Blocks, an a global block_visited variable (in irgraph.h).
197 Furhter I modularized dump_ir_node, implemented dump_ir_graph
198 with the existing walker, and added new routines to output a
200 Changed the examples to call the new dump routine.
203 Added auxiliary routines to ir_node:
204 skip_Proj, skip_Nop, is_Bad ...
205 Changed access routines to use get_irn_n instead of explicit array
206 accesses. Changed get_irn_n to call skip_Id, so that the access routines
207 never will return Id nodes.
210 Repaired Phi computation, changed new_r_Phi_in. Added test program to
211 test irregular controlflow.
214 Updated optimizations computed_value and equivalent_node to new
215 Syntax of FIRM nodes and to use access routines.
216 Added routine skip_Proj in irnode.
218 2.2.2000 Boris Boesler
219 Added files irgwalk.c and irgwalk.h. They include a simple function to
220 traverse an ir graph and execute pre and post functions to current node.
223 Added arrays with parameters and result types to the type informtion
224 of a procedure. This is needed for the code generation. Also added
225 the corresponding access routines.
226 Adapted the testprograms.
229 Found a bug / complication: the call order
230 get_value (makes Phi0, put's it into graph_arr)
231 set_value (overwrites Phi0 in graph_arr)
232 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
234 fails. Added test wether graph_arr is already set in phi_merge.
236 Added tons of comments to explain Phi generation -- the stack hack.
240 irdump now outputs the pnc_number for projs of Cmp nodes.
241 Added routine to access the pnc_string.
244 Added result "dataseg" to Start node, with all it's consequences.
245 We need this for the compiler lab to translate global variables.
246 Now they can be selected from the data segment, and the start
247 node supplies the pointer to this segment.
248 These changes are guarded by preprocessor variable UEBPRAKT in
250 Changed files: common.h, irgraph.ch, irnode.h
254 removed array_example, added array-heap_example and
255 array-stack_example and adapted makefile.
257 Entity now also allows type_method as owner. This is to model
258 the stack, Sel nodes that select a variable (array) from the
259 stack need an entity that describes what they select. This
260 entity gets the type of the enclosing procedure as owner.
263 Added future access routines in `irmode.[ch]' as comments,
264 that all attributes in the ir_mode struct can be user-defined.
265 Added access routines in `irgraph.[ch]', for all attributes.
268 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
269 Added `irvrfy.[ch]' to MAKEFILE
270 Added "inline" before access routines in `irnode.h', that no warnings
271 will appear furthermore.
272 Added three more access routines in `irmode.[ch]':
273 struct tarval *get_min_of_mode (ir_mode *mode);
274 struct tarval *get_max_of_mode (ir_mode *mode);
275 struct tarval *get_null_of_mode (ir_mode *mode);
278 Adaption of Alloc, Sel and Entity to new types:
279 Changed array_example to use type instead of type_class.
280 Changed entity to allow all types as owner instead of
281 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
282 Changed alloc to allow allocating variables of any type instead of
284 Adapted all testprograms to avoid warnings.
286 removed dtest ... from Makefile, replaced by test.
289 Added "run" to makefile, added array_example to makefile of testprograms.
290 Corrected testprogram array
291 Changed assert in irvrfy -- Conv.
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