serve as a repository for information on these interface and any incompatable
changes we've made.
-Jun 10, 1998:
- The interface to lang_decode_option has changed. It now uses and argc/argv
- interface to allow for options that use more than one input string. The new
- declaration is: int lang_decode_option (int argc, char** argv). It now
- returns the number of input strings processed, or 0 if the option is
- unknown.
-
-Jun 7, 1998:
- Front-ends must now define lang_init_options. It is safe for this
- function to do nothing. See c-lang.c.
-
-Apr 21, 1998:
- Front ends which link with c-common or other files from the C/C++
- front-ends may need to handle TI types. Look for references to
- [unsigned]int_DI_type_node in your front end. If you have references
- to these variables, you'll need up update the front end.
-
- To update the front end you must mirror all the code which currently
- deals with intDI_type_node to also handle intTI_type_node.
-
-
-Apr 7, 1998:
- The interface between toplev.c and the language front ends for opening the
- source file has changed:
-
- o init_lex() has been renamed to init_parse (char *filename) where filename
- is the name of the source file.
- o The code in toplev.c which opened the source file should be moved to
- the new init_parse function.
- o toplev.c now calls finish_parse() instead of closing the source file
- using fclose(). This should now be done in finish_parse, if necessary.
-
-Apr 1, 1998:
- Front-ends must now define lang_print_xnode. It is safe for this
- function to do nothing. See c-lang.c.
+2004-09-09:
+ In an effort to decrease execution time, single char tree code
+ classes were changed to enumerated values.
+
+ Old way:
+
+ DEFTREECODE (CLASS_METHOD_DECL, "class_method_decl", 'd', 0)
+
+ New way:
+
+ DEFTREECODE (CLASS_METHOD_DECL, "class_method_decl", tcc_declaration, 0)
+
+2001-02-26:
+ A DECL_INITIAL of NULL_TREE or error_mark_node in a VAR_DECL is no longer
+ taken to signify a tentative definition which should not be emitted until
+ end-of-file. Frontends which want that behavior should set
+ DECL_DEFER_OUTPUT before calling rest_of_decl_compilation.
Feb 1, 1998:
When a size in bits is converted into a size in bytes, which is expressed
in trees, care should be taken to change the tree's type again to sizetype.
- We've updated C, C++, Fortran & Objective-C to work with the new
- scheme. Other languages will need to be updated accordingly.
- Contact amylaar@cygnus.com for additional information.
-
?? 1997:
In an effort to decrease cache thrashing and useless loads we've changed the
third argument to the DEFTREECODE macro to be a single char. This will
- effect languages that defined their own tree codes (usually in a .def file).
+ affect languages that defined their own tree codes (usually in a .def file).
Old way:
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