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
9 Commented a whole bunch of stuff, e.g. in ircons.h (Procedure to construct)
10 We should change the naming of the Block constructor.
13 Removed acces routines to attr. "closed" of Block.
16 Removed second implementation of new_ir_node from ircons and some comments
17 concerned with the now resolved cyclic dependency.
18 Fixed some bugs in irgopt so that the compilation goes through.
21 Removed some files from the archive, after dependencies and usage are
23 - 'ir/common/strerror.c'
25 - 'ir/ident/xx_ident.h'
26 an empty file, only included by 'ident.c', but never used;
29 contained a numeric counter;
30 The files were included in 'tv.h' and implemented in 'tarval.c'. The two
31 functions 'tarval_label' and 'tarval_forall_labeled' were also never used.
32 In the old fiasco compiler, the label thing is used in the backend.
33 Search for 'babil' to see the usage.
34 Also removed the two attributes 'lab' and 'used' in the tarval struct.
37 Moved the 'new_ir_node' constructor from ircons.* to irnode.* and fixed
38 afterwards some recursive includes, so libfirm works again.
41 Did a lot of changes, which I never commented until now (4.7.00).
43 * Added new result to Start node: Pointer to global data segment.
44 * Extended Semantics of SymConst node to represent information for the
46 * Added arithmeitc nodes (Shrs, Minus ...)
48 Rearranged the directory structure and adjusted the makefiles.
49 The directories contain:
50 ir: everything for the intermediate representation (better: src?)
51 /ir: the ir itself, and standard optimizations.
52 /tv: the target value module
53 /tr: the type and entity representation
54 /adt: abstract data types
55 /common: stuff needed by all other dirs
56 /debug: debugging Unterstuetzung
58 include: external files needen as includes
59 testprograms: examples to test the lib.
61 The makefiles generate files with extension .d that contain the dependencies
65 Added access routine to attribute link of irnode in irnode.ch.
66 Added get_negated_pnc to irnode.ch.
69 Added an iterator in iropt that calls the optimization for all nodes.
70 Copied optimize's code to optimize_in_place and removed deallocations.
71 Made set_irn_n in irnode.c public.
72 Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
73 are allowded as cfgpredecessors to represent dead "incoming" control
75 Added call to optimize_in_place in mature_block. Is this useful?
78 Changed tests from comparing enums to comparing pointers. This is more
79 efficient (is it?) and reads better. e.g., instead get_irn_opcode == irm_And
80 now get_irn_op == op_And
83 Compared equivalent_value to the one in the original fiasco.
84 Added a test in case iro_And.
85 Changed implementation of iro_Div. Added routines turn_into_tuple
86 and set_irn_op() in irgmod/irnode.
87 Changed implementation of irn_Minus (although commented out).
88 Now all features are ported or documented for this function.
91 Compared computed_value to the one in the original fiasco.
92 Added one further optimization in case iro_Proj.
93 Now all features are ported for this function.
96 Updated comments in ircons.h.
99 Changed possible attribute of SymConst from type_class to type.
100 SymConst size could be the size of a union, array, ...
103 Implemented two dumpers that dump type information and a graph with
107 Implemented a walker that walks over the type informatin that can
108 be reached from an ir node.
109 Added routine get_kind(firm_thing) in common.h, Added file common.c.
110 Added files typewalk.ch and routines to irdump.
111 Added visited flags and initialization to entity and all types.
112 Implemented some of the missing access routines in type.c, entity.c
115 Implemented constructor for ShrA.
117 Added routine that iterates the graph and verifies all nodes.
118 Added Phi_in stack to irgraph. This allows to build several
119 graphs at once with respect to the Phi building algorithm.
122 Implemented dumper for control flow graphs. Changed irr_* and dead_*
123 examples to dump cfg.
126 Implemeted explicit stack for the Phi node generation. See ircons.c.
129 added include string.h in xoprintf.c to get rid of warning:
130 implicit declaration of function `bcopy'
134 Added more cases to equivalent_node.
135 Portet gigo, identify, identify_remember.
136 The set/pset library can not handle several hash tables. At least,
137 compiling several procedures causes a segmentation fault during access
138 to the tables (oo_program_example). Need to work on this.
139 transform_node still needs to be ported.
140 some cases in equivalent_node are still missing.
142 To get it running I had to remove the call to optimize in the
143 new_Block constructor. It can only be called when the Block is
147 Introduced a walker that walks only over blocks. The asserts
148 might be too strict for general graphs, but so far it works.
149 For the walker I introduced an additional flag in the attribute
150 of Blocks, an a global block_visited variable (in irgraph.h).
151 Furhter I modularized dump_ir_node, implemented dump_ir_graph
152 with the existing walker, and added new routines to output a
154 Changed the examples to call the new dump routine.
157 Added auxiliary routines to ir_node:
158 skip_Proj, skip_Nop, is_Bad ...
159 Changed access routines to use get_irn_n instead of explicit array
160 accesses. Changed get_irn_n to call skip_Id, so that the access routines
161 never will return Id nodes.
164 Repaired Phi computation, changed new_r_Phi_in. Added test program to
165 test irregular controlflow.
168 Updated optimizations computed_value and equivalent_node to new
169 Syntax of FIRM nodes and to use access routines.
170 Added routine skip_Proj in irnode.
172 2.2.2000 Boris Boesler
173 Added files irgwalk.c and irgwalk.h. They include a simple function to
174 traverse an ir graph and execute pre and post functions to current node.
177 Added arrays with parameters and result types to the type informtion
178 of a procedure. This is needed for the code generation. Also added
179 the corresponding access routines.
180 Adapted the testprograms.
183 Found a bug / complication: the call order
184 get_value (makes Phi0, put's it into graph_arr)
185 set_value (overwrites Phi0 in graph_arr)
186 mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
188 fails. Added test wether graph_arr is already set in phi_merge.
190 Added tons of comments to explain Phi generation -- the stack hack.
194 irdump now outputs the pnc_number for projs of Cmp nodes.
195 Added routine to access the pnc_string.
198 Added result "dataseg" to Start node, with all it's consequences.
199 We need this for the compiler lab to translate global variables.
200 Now they can be selected from the data segment, and the start
201 node supplies the pointer to this segment.
202 These changes are guarded by preprocessor variable UEBPRAKT in
204 Changed files: common.h, irgraph.ch, irnode.h
208 removed array_example, added array-heap_example and
209 array-stack_example and adapted makefile.
211 Entity now also allows type_method as owner. This is to model
212 the stack, Sel nodes that select a variable (array) from the
213 stack need an entity that describes what they select. This
214 entity gets the type of the enclosing procedure as owner.
217 Added future access routines in `irmode.[ch]' as comments,
218 that all attributes in the ir_mode struct can be user-defined.
219 Added access routines in `irgraph.[ch]', for all attributes.
222 Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
223 Added `irvrfy.[ch]' to MAKEFILE
224 Added "inline" before access routines in `irnode.h', that no warnings
225 will appear furthermore.
226 Added three more access routines in `irmode.[ch]':
227 struct tarval *get_min_of_mode (ir_mode *mode);
228 struct tarval *get_max_of_mode (ir_mode *mode);
229 struct tarval *get_null_of_mode (ir_mode *mode);
232 Adaption of Alloc, Sel and Entity to new types:
233 Changed array_example to use type instead of type_class.
234 Changed entity to allow all types as owner instead of
235 only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
236 Changed alloc to allow allocating variables of any type instead of
238 Adapted all testprograms to avoid warnings.
240 removed dtest ... from Makefile, replaced by test.
243 Added "run" to makefile, added array_example to makefile of testprograms.
244 Corrected testprogram array
245 Changed assert in irvrfy -- Conv.