2 Removed strange block struct and constructor from ircons.c.
3 Moved routines for automatic Phi construction from irgmod to ircons.
4 Sorted functions in ircons to reflect the different interfaces.
5 Renamed dataseg to globals to be conformant with documentation.
6 Added conservation of current_ir_graph to irgopt.c.
7 Corrected bug in Makefiles: wrong path to directory ./inlude.
10 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
11 We should change the naming of the Block constructor.
14 Removed acces routines to attr. "closed" of Block.
17 Removed second implementation of new_ir_node from ircons and some comments
18 concerned with the now resolved cyclic dependency.
19 Fixed some bugs in irgopt so that the compilation goes through.
22 Removed some files from the archive, after dependencies and usage are
24 - 'ir/common/strerror.c'
26 - 'ir/ident/xx_ident.h'
27 an empty file, only included by 'ident.c', but never used;
30 contained a numeric counter;
31 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
32 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
33 In the old fiasco compiler, the label thing is used in the backend.
34 Search for 'babil' to see the usage.
35 Also removed the two attributes 'lab' and 'used' in the tarval struct.
38 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
39 afterwards some recursive includes, so libfirm works again.
42 Did a lot of changes, which I never commented until now (4.7.00).
44 * Added new result to Start node: Pointer to global data segment.
45 * Extended Semantics of SymConst node to represent information for the
47 * Added arithmeitc nodes (Shrs, Minus ...)
49 Rearranged the directory structure and adjusted the makefiles.
50 The directories contain:
51 ir: everything for the intermediate representation (better: src?)
52 /ir: the ir itself, and standard optimizations.
53 /tv: the target value module
54 /tr: the type and entity representation
55 /adt: abstract data types
56 /common: stuff needed by all other dirs
57 /debug: debugging Unterstuetzung
59 include: external files needen as includes
60 testprograms: examples to test the lib.
62 The makefiles generate files with extension .d that contain the dependencies
66 Added access routine to attribute link of irnode in irnode.ch.
67 Added get_negated_pnc to irnode.ch.
70 Added an iterator in iropt that calls the optimization for all nodes.
71 Copied optimize's code to optimize_in_place and removed deallocations.
72 Made set_irn_n in irnode.c public.
73 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
74 are allowded as cfgpredecessors to represent dead "incoming" control
76 Added call to optimize_in_place in mature_block. Is this useful?
79 Changed tests from comparing enums to comparing pointers. This is more
80 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
81 now get_irn_op == op_And
84 Compared equivalent_value to the one in the original fiasco.
85 Added a test in case iro_And.
86 Changed implementation of iro_Div. Added routines turn_into_tuple
87 and set_irn_op() in irgmod/irnode.
88 Changed implementation of irn_Minus (although commented out).
89 Now all features are ported or documented for this function.
92 Compared computed_value to the one in the original fiasco.
93 Added one further optimization in case iro_Proj.
94 Now all features are ported for this function.
97 Updated comments in ircons.h.
100 Changed possible attribute of SymConst from type_class to type.
101 SymConst size could be the size of a union, array, ...
104 Implemented two dumpers that dump type information and a graph with
108 Implemented a walker that walks over the type informatin that can
109 be reached from an ir node.
110 Added routine get_kind(firm_thing) in common.h, Added file common.c.
111 Added files typewalk.ch and routines to irdump.
112 Added visited flags and initialization to entity and all types.
113 Implemented some of the missing access routines in type.c, entity.c
116 Implemented constructor for ShrA.
118 Added routine that iterates the graph and verifies all nodes.
119 Added Phi_in stack to irgraph. This allows to build several
120 graphs at once with respect to the Phi building algorithm.
123 Implemented dumper for control flow graphs. Changed irr_* and dead_*
124 examples to dump cfg.
127 Implemeted explicit stack for the Phi node generation. See ircons.c.
130 added include string.h in xoprintf.c to get rid of warning:
131 implicit declaration of function `bcopy'
135 Added more cases to equivalent_node.
136 Portet gigo, identify, identify_remember.
137 The set/pset library can not handle several hash tables. At least,
138 compiling several procedures causes a segmentation fault during access
139 to the tables (oo_program_example). Need to work on this.
140 transform_node still needs to be ported.
141 some cases in equivalent_node are still missing.
143 To get it running I had to remove the call to optimize in the
144 new_Block constructor. It can only be called when the Block is
148 Introduced a walker that walks only over blocks. The asserts
149 might be too strict for general graphs, but so far it works.
150 For the walker I introduced an additional flag in the attribute
151 of Blocks, an a global block_visited variable (in irgraph.h).
152 Furhter I modularized dump_ir_node, implemented dump_ir_graph
153 with the existing walker, and added new routines to output a
155 Changed the examples to call the new dump routine.
158 Added auxiliary routines to ir_node:
159 skip_Proj, skip_Nop, is_Bad ...
160 Changed access routines to use get_irn_n instead of explicit array
161 accesses. Changed get_irn_n to call skip_Id, so that the access routines
162 never will return Id nodes.
165 Repaired Phi computation, changed new_r_Phi_in. Added test program to
166 test irregular controlflow.
169 Updated optimizations computed_value and equivalent_node to new
170 Syntax of FIRM nodes and to use access routines.
171 Added routine skip_Proj in irnode.
173 2.2.2000 Boris Boesler
174 Added files irgwalk.c and irgwalk.h. They include a simple function to
175 traverse an ir graph and execute pre and post functions to current node.
178 Added arrays with parameters and result types to the type informtion
179 of a procedure. This is needed for the code generation. Also added
180 the corresponding access routines.
181 Adapted the testprograms.
184 Found a bug / complication: the call order
185 get_value (makes Phi0, put's it into graph_arr)
186 set_value (overwrites Phi0 in graph_arr)
187 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
189 fails. Added test wether graph_arr is already set in phi_merge.
191 Added tons of comments to explain Phi generation -- the stack hack.
195 irdump now outputs the pnc_number for projs of Cmp nodes.
196 Added routine to access the pnc_string.
199 Added result "dataseg" to Start node, with all it's consequences.
200 We need this for the compiler lab to translate global variables.
201 Now they can be selected from the data segment, and the start
202 node supplies the pointer to this segment.
203 These changes are guarded by preprocessor variable UEBPRAKT in
205 Changed files: common.h, irgraph.ch, irnode.h
209 removed array_example, added array-heap_example and
210 array-stack_example and adapted makefile.
212 Entity now also allows type_method as owner. This is to model
213 the stack, Sel nodes that select a variable (array) from the
214 stack need an entity that describes what they select. This
215 entity gets the type of the enclosing procedure as owner.
218 Added future access routines in `irmode.[ch]' as comments,
219 that all attributes in the ir_mode struct can be user-defined.
220 Added access routines in `irgraph.[ch]', for all attributes.
223 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
224 Added `irvrfy.[ch]' to MAKEFILE
225 Added "inline" before access routines in `irnode.h', that no warnings
226 will appear furthermore.
227 Added three more access routines in `irmode.[ch]':
228 struct tarval *get_min_of_mode (ir_mode *mode);
229 struct tarval *get_max_of_mode (ir_mode *mode);
230 struct tarval *get_null_of_mode (ir_mode *mode);
233 Adaption of Alloc, Sel and Entity to new types:
234 Changed array_example to use type instead of type_class.
235 Changed entity to allow all types as owner instead of
236 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
237 Changed alloc to allow allocating variables of any type instead of
239 Adapted all testprograms to avoid warnings.
241 removed dtest ... from Makefile, replaced by test.
244 Added "run" to makefile, added array_example to makefile of testprograms.
245 Corrected testprogram array
246 Changed assert in irvrfy -- Conv.