--- /dev/null
+ 15.2.2000 Goetz
+ Added access routine to attribute link of irnode in irnode.ch.
+ Added get_negated_pnc to irnode.ch.
+
+ 14.2.2000 Goetz
+ Added an iterator in iropt that calls the optimization for all nodes.
+ Copied optimize's code to optimize_in_place and removed deallocations.
+ Made set_irn_n in irnode.c public.
+ Added Bad as possible cfg predecessor in is_cfg_node in irnode. Bads
+ are allowded as cfgpredecessors to represent dead "incoming" control
+ flow.
+ Added call to optimize_in_place in mature_block. Is this useful?
+
+ 10.2.2000 Goetz
+ Changed tests from comparing enums to comparing pointers. This is more
+ efficient and reads better. e.g., instead get_irn_opcode == irm_And
+ now get_irn_op == op_And
+
+ 10.2.2000 Goetz
+ Compared equivalent_value to the one in the original fiasco.
+ Added a test in case iro_And.
+ Changed implementation of iro_Div. Added routines turn_into_tuple
+ and set_irn_op() in irgmod/irnode.
+ Changed implementation of irn_Minus (although commented out).
+ Now all features are ported or documented for this function.
+
+ 10.2.2000 Goetz
+ Compared computed_value to the one in the original fiasco.
+ Added one further optimization in case iro_Proj.
+ Now all features are ported for this function.
+
+ 9.2.2000 Goetz
+ Updated comments in ircons.h.
+
+ 9.2.2000 Goetz
+ Changed possible attribute of SymConst from type_class to type.
+ SymConst size could be the size of a union, array, ...
+
+ 9.2.2000 Goetz
+ Implemented two dumpers that dump type information and a graph with
+ type information.
+
+ 9.2.2000 Goetz
+ Implemented a walker that walks over the type informatin that can
+ be reached from an ir node.
+ Added routine get_kind(firm_thing) in common.h, Added file common.c.
+ Added files typewalk.ch and routines to irdump.
+ Added visited flags and initialization to entity and all types.
+ Implemented some of the missing access routines in type.c, entity.c
+
+ 9.2.2000 Goetz
+ Implemented constructor for ShrA.
+ Added type struct.
+ Added routine that iterates the graph and verifies all nodes.
+ Added Phi_in stack to irgraph. This allows to build several
+ graphs at once with respect to the Phi building algorithm.
+
+ 9.2.2000 Goetz
+ Implemented dumper for control flow graphs. Changed irr_* and dead_*
+ examples to dump cfg.
+
+ 8.2.2000 Goetz
+ Implemeted explicit stack for the Phi node generation. See ircons.c.
+
+ 8.2.2000 Goetz
+ added include string.h in xoprintf.c to get rid of warning:
+ implicit declaration of function `bcopy'
+
+ 7.2.2000 Goetz
+ Worked on iropt.c:
+ Added more cases to equivalent_node.
+ Portet gigo, identify, identify_remember.
+ The set/pset library can not handle several hash tables. At least,
+ compiling several procedures causes a segmentation fault during access
+ to the tables (oo_program_example). Need to work on this.
+ transform_node still needs to be ported.
+ some cases in equivalent_node are still missing.
+
+ To get it running I had to remove the call to optimize in the
+ new_Block constructor. It can only be called when the Block is
+ mature.
+
+ 7.2.2000 Goetz
+ Introduced a walker that walks only over blocks. The asserts
+ might be too strict for general graphs, but so far it works.
+ For the walker I introduced an additional flag in the attribute
+ of Blocks, an a global block_visited variable (in irgraph.h).
+ Furhter I modularized dump_ir_node, implemented dump_ir_graph
+ with the existing walker, and added new routines to output a
+ basic block graph.
+ Changed the examples to call the new dump routine.
+
+ 7.2.2000 Goetz
+ Added auxiliary routines to ir_node:
+ skip_Proj, skip_Nop, is_Bad ...
+ Changed access routines to use get_irn_n instead of explicit array
+ accesses. Changed get_irn_n to call skip_Id, so that the access routines
+ never will return Id nodes.
+
+ 3.2.2000 Goetz
+ Repaired Phi computation, changed new_r_Phi_in. Added test program to
+ test irregular controlflow.
+
+ 2.2.2000 Goetz
+ Updated optimizations computed_value and equivalent_node to new
+ Syntax of FIRM nodes and to use access routines.
+ Added routine skip_Proj in irnode.
+
+ 2.2.2000 Boris Boesler
+ Added files irgwalk.c and irgwalk.h. They include a simple function to
+ traverse an ir graph and execute pre and post functions to current node.
+
+ 1.2.2000 Goetz
+ Added arrays with parameters and result types to the type informtion
+ of a procedure. This is needed for the code generation. Also added
+ the corresponding access routines.
+ Adapted the testprograms.
+
+ 1.2.2000 Goetz
+ Found a bug / complication: the call order
+ get_value (makes Phi0, put's it into graph_arr)
+ set_value (overwrites Phi0 in graph_arr)
+ mature_block (upgrades Phi0, puts it again into graph_arr, overwriting
+ the proper value.)
+ fails. Added test wether graph_arr is already set in phi_merge.
+
+ Added tons of comments to explain Phi generation -- the stack hack.
+
+
+ 27.1.2000 Goetz
+ irdump now outputs the pnc_number for projs of Cmp nodes.
+ Added routine to access the pnc_string.
+
+ 27.1.2000 Goetz
+ Added result "dataseg" to Start node, with all it's consequences.
+ We need this for the compiler lab to translate global variables.
+ Now they can be selected from the data segment, and the start
+ node supplies the pointer to this segment.
+ These changes are guarded by preprocessor variable UEBPRAKT in
+ common.h
+ Changed files: common.h, irgraph.ch, irnode.h
+
+ 26.1.2000 Goetz
+ Testprograms:
+ removed array_example, added array-heap_example and
+ array-stack_example and adapted makefile.
+ ir_lib:
+ Entity now also allows type_method as owner. This is to model
+ the stack, Sel nodes that select a variable (array) from the
+ stack need an entity that describes what they select. This
+ entity gets the type of the enclosing procedure as owner.
+
+ 24.1.2000 Chris
+ Added future access routines in `irmode.[ch]' as comments,
+ that all attributes in the ir_mode struct can be user-defined.
+ Added access routines in `irgraph.[ch]', for all attributes.
+
+ 22.1.2000 Chris
+ Moved verify routines from `irgraph.[ch]' to own files `irvrfy.[ch]'.
+ Added `irvrfy.[ch]' to MAKEFILE
+ Added "inline" before access routines in `irnode.h', that no warnings
+ will appear furthermore.
+ Added three more access routines in `irmode.[ch]':
+ struct tarval *get_min_of_mode (ir_mode *mode);
+ struct tarval *get_max_of_mode (ir_mode *mode);
+ struct tarval *get_null_of_mode (ir_mode *mode);
+
+ 21.1.2000 Goetz
+ Adaption of Alloc, Sel and Entity to new types:
+ Changed array_example to use type instead of type_class.
+ Changed entity to allow all types as owner instead of
+ only type_class. Added routine "assert_legal_owner_of_ent(type* type)".
+ Changed alloc to allow allocating variables of any type instead of
+ only type_class.
+ Adapted all testprograms to avoid warnings.
+
+ removed dtest ... from Makefile, replaced by test.
+
+ 20.1.2000 Goetz
+ Added "run" to makefile, added array_example to makefile of testprograms.
+ Corrected testprogram array
+ Changed assert in irvrfy -- Conv.
+ Started Change log.
+ Started TODO log.
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