Commit Graph

1641 Commits

Author SHA1 Message Date
Bill Currie bceb98e5a4 Create structures for new qfo format.
This breaks a lot of existing code, so that code has been commented out
for now.
2011-02-17 15:02:09 +09:00
Bill Currie 9c9a71f1af Allow defs to specify use of offset relocations.
Access to struct fields in near data can be done using only one operand,
but offset relocs need to be used. However, as not all defs want offset
relocs, a flag has been added to the def struct.
2011-02-15 22:55:15 +09:00
Bill Currie d04865884f Set the method's function pointer. 2011-02-15 22:27:13 +09:00
Bill Currie 3721b2edca Method lists are made of methods, not integers :P 2011-02-15 22:26:44 +09:00
Bill Currie c068138d91 More addresses in hex. 2011-02-15 22:26:09 +09:00
Bill Currie 814e36d3c8 Correct an error message and tidy some code. 2011-02-15 22:25:40 +09:00
Bill Currie 4336fc2c73 Move method function defs into the far data space.
As they are never referenced directly by instructions, there's no need for
them to be in the near data space, taking precious def locations.
2011-02-15 15:33:18 +09:00
Bill Currie 5252d72856 Correct the type for _OBJ_SELECTOR_TABLE. 2011-02-15 15:33:12 +09:00
Bill Currie b3da6ef3d4 Allow zero size arrays to match sized arrays of the same type.
This allows externally declared arrays to not specify a size.
2011-02-15 12:08:03 +09:00
Bill Currie b2d4aee61e Reimplement selector expressions to work with far data.
They currently execute a lea instruction every method call, but the
optimizer should take care of that once its written.
2011-02-15 10:48:05 +09:00
Bill Currie 6bd63f811f Preserve any relocs when converting a def from extern to otherwise. 2011-02-15 10:47:16 +09:00
Bill Currie 62456dc1e9 Yet another test. 2011-02-15 09:48:10 +09:00
Bill Currie 4e86b28b59 Use the def type rather than expression type to select the init method.
Local defs may be initialized with non-constant expressions, which
includes function calls. Both function calls and aggregate initializers
use block expressions.
2011-02-15 09:38:44 +09:00
Bill Currie 19f6faf0ad Fix aggregate initializers.
Initializing arrays and structs seems to be working.
2011-02-15 09:30:37 +09:00
Bill Currie d162838299 Resurrect constant_expr(). 2011-02-15 09:28:27 +09:00
Bill Currie bc882ddc3c Fix the parser side of aggregate initializers. 2011-02-14 23:31:37 +09:00
Bill Currie 09af401f0c Reset current_func at the end of each function. 2011-02-14 23:10:46 +09:00
Bill Currie 5fa349927f Preserve the ivars inheritance chain across build_struct().
build_struct() unlinks the structure symbol table from its parent, but
that breaks the ivar inheritance chain.
2011-02-14 23:10:46 +09:00
Bill Currie 5707888fcf Fix some error-recovery segfaults. 2011-02-14 23:10:46 +09:00
Bill Currie f1fccb19dd Allow same-type re-declarations of uninitialized variables.
This is especially important for declaring variables that were previously
declared external.
2011-02-14 23:10:46 +09:00
Bill Currie b3d5789377 More tests. 2011-02-14 23:10:46 +09:00
Bill Currie 23b01be214 Handle invalid initializers gracefully. 2011-02-14 23:10:46 +09:00
Bill Currie 4c63a0bad6 Generate a warning when creating a var with no type.
This makes the internal error in new_def() non-functional, but the warning
will catch the bug and there's no harm in leaving the test in new_def().
2011-02-14 23:10:46 +09:00
Bill Currie ee866ae3a6 Enable the small struct optimization.
For now, anyway. It would probably be much better to handle this sort of
thing in the optimizer stage.
2011-02-14 23:10:45 +09:00
Bill Currie bcaf3687c5 Fix loading structs into params via an offset pointer.
For certain values of "fix" :/. The code is ugly, but it does the right
thing: calculate the effect address and use the resulting pointer in a
move instruction.
2011-02-14 23:10:45 +09:00
Bill Currie 352be1f8bd Handle null string pointers. 2011-02-14 23:10:45 +09:00
Bill Currie e10d561459 Treat small structs as integers (disabled).
This is more to stash away a potential optimization. I need to fix the
real problem first.
2011-02-14 23:10:45 +09:00
Bill Currie 6b29568fa9 Set the source file and line when copying an expression.
This fixes the crazy line numbers in the debug info.
2011-02-14 23:10:45 +09:00
Bill Currie fc18ebd923 Add the source line number to most node labels. 2011-02-14 23:10:45 +09:00
Bill Currie 3e5989463f Update the def_tail when removing the last def from the space. 2011-02-14 23:10:45 +09:00
Bill Currie 11485556e5 Quote expression names to avoid problems with null pointers. 2011-02-14 23:10:45 +09:00
Bill Currie c139099294 Put another bandaid on the type creation system.
It seems that building types is very fragile: all too easy to fix things
in one place and break something somewhere else. I guess the type system
will need a comlete rewrite at some stage.
2011-02-14 23:10:45 +09:00
Bill Currie e3325b199e More tests. 2011-02-14 23:10:45 +09:00
Bill Currie e0d61705b4 And fix build_struct for built-in struct types.
The previous fix broke builtin structs (eg, @param). Calling find_type()
for built-in structs has proven to be a bad idea :)
2011-02-13 21:07:22 +09:00
Bill Currie a19b7ec8f9 Make struct decls actually work.
find_type() does type comparisons based on tag name for struct/union/enum
but when it returns the previous tag (eg, from "struct foo;") the returned
type has a null symtab pointer, so setting the symtab pointer in the type
before calling find_type() only throws away the symtab. Thus, since
find_type() doesn't check the symtab pointer when comparing the types, set
the symtab pointer after calling find_type().
2011-02-13 20:56:12 +09:00
Bill Currie acced90101 Create the symbol for the struct as early as possible. 2011-02-13 20:55:33 +09:00
Bill Currie b545f72f93 Report errors for incomplete types and missing fields. 2011-02-13 20:23:08 +09:00
Bill Currie c336aaeb80 Handle incomplete types gracefully. 2011-02-13 19:26:20 +09:00
Bill Currie ef32d1fb6d Save away some of my tests. 2011-02-13 19:02:39 +09:00
Bill Currie 976ff8a6bb Allow cast expressions to be lvalues.
These really need to be alias expressions rather than cast expressions
so the two can be separated as cast expressions should not be lvalues.
2011-02-13 17:54:15 +09:00
Bill Currie fa742ceed6 Handle @self and @this correctly. 2011-02-13 17:52:19 +09:00
Bill Currie 547f361bd3 Allow (void) qc-style functions. 2011-02-13 17:37:11 +09:00
Bill Currie d75c35ba30 Allow qc style function params.
Due to ambiguities in the grammar, qc-style function params and c-style
function params had to be completely separated. This means that qc-style
functions can not use pointers and must use qc-style function declarations
for parameters, and c-style functions must use c-style param declarations.
While this rule is tedious for converting the Ruamoko library, it does
actually make for a more consistent language.
2011-02-13 17:07:14 +09:00
Bill Currie 8a314e9e87 Class pointers need to be directly addressable. 2011-02-13 16:05:50 +09:00
Bill Currie 0b5565396b Add a class type to symbols and rework the CLASS_NAME handling.
This fixes the problem with [Array alloc] producing a warning about Class
not repsonding to -alloc.
2011-02-13 16:05:09 +09:00
Bill Currie 3f690eacb1 Fix another double insertion of a symbol. 2011-02-13 15:28:49 +09:00
Bill Currie 127a1c8772 Fix the creation of enum values. 2011-02-13 15:19:55 +09:00
Bill Currie f24de89a2a Handle type-modified constants.
The fix for pointers broke constants (particularly, enums). Oops.
2011-02-13 14:13:32 +09:00
Bill Currie fa6b8d773c Correctly emit class and category symtab references. 2011-02-13 13:21:00 +09:00
Bill Currie c4f364fd37 Emit pointers properly.
Rename ReuseConstant to emit_value and use emit_value to emit any non-short
constant. This fixes the null pointer in the call to __obj_exec_class.
2011-02-13 10:09:42 +09:00
Bill Currie 1bcf434b20 Move _OBJ_MODULE to the far data space. 2011-02-12 23:00:04 +09:00
Bill Currie d42a379924 Dump the contents of a pointer def. 2011-02-12 22:59:29 +09:00
Bill Currie eede83dea1 Avoid crashing when a null class pointer is found. 2011-02-12 22:58:50 +09:00
Bill Currie 3505de6868 Point the near and far data spaced into the merged data space.
This lets the relocations work on the final data without having to adjust
their locations.
2011-02-12 22:35:44 +09:00
Bill Currie 181596f5bf Make relocation records store the space of the relocation.
The space is meaningless for op_* relocations as they are always in the
code space, but def_* relocations need to know which space holds the
location to be adjusted.
2011-02-12 22:34:38 +09:00
Bill Currie cfdc2e5d6b Complete the documentation for relocations.
This covers only in-memory storage of relocation records, not object file
relocations.
2011-02-12 15:55:58 +09:00
Bill Currie 8c01497936 Give __obj_exec_class a sterner beating.
When linking a def into a defspace, ensure it can be removed. This fixes
the missing __obj_exec_class def in qwaq.
2011-02-11 22:29:57 +09:00
Bill Currie 75d90d2f00 Propogate the specifiers through external_decl_list. 2011-02-11 22:29:57 +09:00
Bill Currie 0efc759f2d Catch attempts to create a def with a null type. 2011-02-11 22:29:57 +09:00
Bill Currie 5f3c1872b9 Put class and category reference/name symbols in the symbol table.
This fixes the undefined defs in qwaq.
2011-02-11 22:29:57 +09:00
Bill Currie 179c1f7058 Support move statements (structure copy). 2011-02-11 22:29:57 +09:00
Bill Currie e19f7e3521 Sort out the parameters for QC style functions :) 2011-02-11 22:29:57 +09:00
Bill Currie 370f0b97ed Produce cleaner output for a = b op c. 2011-02-11 22:29:57 +09:00
Bill Currie d93d8d7d46 Remove the dirty hack used for accessing params and the return value.
Instead of using the equivalent of *(float*)&.return, now use the
equivalent of (float).return. No conversion is done in the "cast".

NOTE: this sort of cast should be separated from normal casts.
2011-02-11 22:29:38 +09:00
Bill Currie f5412c2b20 Remove a fixme. 2011-02-11 22:29:38 +09:00
Bill Currie c185fbb782 Set the type of the super structure to the correct type. 2011-02-11 22:29:38 +09:00
Bill Currie 7d2a95ee40 Mark a few problem spots. 2011-02-11 22:29:37 +09:00
Bill Currie a1d4d4bae1 Handle block expressions in is_indirect(). 2011-02-11 22:29:30 +09:00
Bill Currie b01f960db9 Disable the subgraphs for now.
They tend to make large trees difficult to read. I might re-enable them
when I've gotten a better handle on dot.
2011-02-10 15:11:08 +09:00
Bill Currie c3a991e555 Support nil in initializers. 2011-02-10 14:51:52 +09:00
Bill Currie adeef4a4eb Copy named expressions.
Since expressions can be modified, making DAGs this early causes
corruption of the expression tree.
2011-02-10 14:43:49 +09:00
Bill Currie 6f625e426f Use the correct type when deferencing an offset pointer. 2011-02-10 14:26:12 +09:00
Bill Currie 1099ca086c Dump the offending expression and statement for a bad instruction. 2011-02-10 14:25:09 +09:00
Bill Currie 4a41d97afc Angle brackets and html :P 2011-02-10 14:24:31 +09:00
Bill Currie 01a7af17e5 Beat __obj_exec_class into submission. 2011-02-10 00:15:19 +09:00
Bill Currie 006c16807d Add the statement for based loads.
Oops :P
2011-02-09 22:40:16 +09:00
Bill Currie a43946abf3 Give short values special treatment.
As a short value fits directly into a statement, it needs a fake def that
holds its value in the def's offset in order for the value to be written to
the statement.
2011-02-09 22:13:43 +09:00
Bill Currie c7adde8709 Fix some case&paste errors. 2011-02-09 22:04:54 +09:00
Bill Currie 1b8edc07c9 Adjust the offsets of ivars in derived classes.
As ivar structs are not independent, their starting offset is not
necessarily zero (almost never will be for derived classes).
2011-02-09 22:02:52 +09:00
Bill Currie d66a441867 Write out the far data space as well as the near.
This causes the Objective-QC structs to be emitted now that they havve been
moved to the far data space. Relocs are broken, though.
2011-02-09 21:45:29 +09:00
Bill Currie 244d969ae3 Ensure any tail bytes in the strings data are zeroed. 2011-02-09 18:32:37 +09:00
Bill Currie 2d5d8eda5a Save the caller's address when creating new relocations. 2011-02-09 17:16:49 +09:00
Bill Currie 29c1f7ac03 Use the correct type object in emit_struct(). 2011-02-09 17:15:29 +09:00
Bill Currie 59a683d39e Protect the name passed into emit_struct().
The name passed into emit_struct is sometimes created via va(), but the
struct creation code also uses va. This makes a mess of names.
2011-02-09 17:12:47 +09:00
Bill Currie 3e1b034aaf Use EMIT_DEF correctly. 2011-02-09 15:58:32 +09:00
Bill Currie e75295b00c Make normal C style functions generate code. 2011-02-09 10:25:23 +09:00
Bill Currie 68cdc904f5 Give temporary variables unique names. 2011-02-09 10:04:55 +09:00
Bill Currie 681ded9375 Fix debug line number information. 2011-02-09 09:59:43 +09:00
Bill Currie 5eff00fdeb Fix debug information. 2011-02-09 08:47:01 +09:00
Bill Currie 71c05bd899 Update for the new syntax.
This one compiles to progs even :) (though it looks broken).
2011-02-08 22:39:42 +09:00
Bill Currie 81125cff3a Creation of .ctor now mostly works.
There seems to be problems with the actual code generation using incorrect
addresses, but a very simple test file compiles successfully.
2011-02-08 22:38:34 +09:00
Bill Currie 1647b1e61d Check for the correct type in emit_symtab_cat_def_cnt(). 2011-02-08 22:31:09 +09:00
Bill Currie 9b52c590f8 Do not try to emit anything when there are no selector references. 2011-02-08 22:28:32 +09:00
Bill Currie da14c95bb8 Initialize current_symtab in class_init() when necessary.
If an objective-qc symbol is the first token to be read, class_init() is
called before the parser gets a chance to perform the initialization
action. However, class_init() setting current_symtab if the first
objective-qc symbol is seen in a function body would be bad.
2011-02-08 22:26:35 +09:00
Bill Currie c01f742b7b Fix some Class vs ClassPtr confusion. 2011-02-08 18:25:23 +09:00
Bill Currie 0d5ab6600d Store the source expression in a statement.
This makes problem reporting more informative.
2011-02-08 18:18:34 +09:00
Bill Currie faab931ffc Fix assignment of id to class pointers. 2011-02-08 17:12:01 +09:00
Bill Currie 6643c5dd98 Fix messages to super. 2011-02-08 17:09:27 +09:00
Bill Currie 505e141633 Ensure the class symbol is in the symbol table. 2011-02-08 17:08:58 +09:00
Bill Currie 93a5808659 Support direct struct/union field access. 2011-02-08 14:48:26 +09:00
Bill Currie 3c849b970b Handle union access now that they're detected properly. 2011-02-08 14:45:48 +09:00
Bill Currie 204a267b6a Print the def name for a pointer expr when known. 2011-02-08 14:43:57 +09:00
Bill Currie 3b080fcbb0 Fix an uninitialized variable. 2011-02-08 13:27:37 +09:00
Bill Currie 2594be8b1b Fix a type-o ;) 2011-02-08 13:26:49 +09:00
Bill Currie 8c6fc6fb03 Fix a double insertion of a symbol. 2011-02-08 08:44:08 +09:00
Bill Currie daa88d8f1c Fix a type clash warning I'd failed to notice. 2011-02-08 08:23:25 +09:00
Bill Currie 35d53d0d77 Fix typedefs and class names once and for all.
I suspect Holub did them that way as a teaching exercise :P
2011-02-08 08:20:32 +09:00
Bill Currie 7e2173f268 Remove some old code. 2011-02-08 08:16:36 +09:00
Bill Currie 92799650c0 Implement struct field access via a pointer. 2011-02-07 22:15:10 +09:00
Bill Currie 7a1a9e3f2d Better handling of the current storage for function scopes. 2011-02-07 22:11:22 +09:00
Bill Currie ff70177041 Fix type handling for local variables. 2011-02-07 21:38:58 +09:00
Bill Currie 952a02eb23 Make print_type() output a newline. 2011-02-07 21:31:37 +09:00
Bill Currie a28ac636a7 Make local declarations support C syntax. 2011-02-07 21:29:04 +09:00
Bill Currie da4ec3d47c Allow typedefs and classes in structs. 2011-02-07 20:55:13 +09:00
Bill Currie aefd2a27d5 Make type handling in the grammar more consistent. 2011-02-07 20:54:49 +09:00
Bill Currie 3c64ae7b66 Fix overzealous type merging.
Use the type name instead of the symbol table for comparing
struct/union/enum types.
2011-02-07 20:48:01 +09:00
Bill Currie 265a244ba2 Set the symbol type for structs etc as soon as the tag is created.
Tags (struct/union/enum) are always types.
2011-02-07 15:30:49 +09:00
Bill Currie 65a07ada1c Implement offset dereferences. 2011-02-07 14:56:29 +09:00
Bill Currie d2b464053c Fix assignment sub-expressions. 2011-02-07 14:43:07 +09:00
Bill Currie 6fa5bbe473 Support constant folding on enums. 2011-02-07 11:31:23 +09:00
Bill Currie d549e5c6b5 Allow enums to be tested. 2011-02-07 11:30:56 +09:00
Bill Currie ef2ad46f7a Convert complex types to a suitable low-level type.
This takes care of moving structures etc around.
2011-02-07 10:55:09 +09:00
Bill Currie b629c12b31 Do not change the type of the return operand.
Doing so made a mess of returning expressions. It was probably a holdover
from before getting instructions with void operand types working.
2011-02-07 10:21:54 +09:00
Bill Currie 829fb33e92 Fix converting nil to a pointer type. 2011-02-07 10:10:48 +09:00
Bill Currie b8127f7543 Do not segfault when printing a pointer value with a bogus type 2011-02-07 09:57:26 +09:00
Bill Currie 28ba4b5712 Correct a comment. 2011-02-07 09:56:33 +09:00
Bill Currie d564e6f017 Clean out the old debug prints from emit_function() 2011-02-07 08:46:12 +09:00
Bill Currie 76034861c9 Implement direct ivar access in methods.
A warning needs to be generated for access to ivars in a class method, but
it seems to work (unable to check due to other errors).
2011-02-07 08:32:52 +09:00
Bill Currie 3025e04ac5 Partially resurrect field_expr()
For now, only entity.field and ivar access via a pointer have been
implemented. The rest will come later as needed.
2011-02-07 08:30:28 +09:00
Bill Currie 1d108a8cec Support emitting symbolic constants. 2011-02-06 20:08:54 +09:00
Bill Currie e4ac92b5f2 Auto-cast between enums and the default type. 2011-02-06 20:08:16 +09:00
Bill Currie 6b7a81f5a7 Run find_type() early on enums and structs. 2011-02-06 20:07:19 +09:00
Bill Currie d54a96e68a Make enum values visible.
Put them in the current symbol table as well as the enum symbol table. The
latter is really just for keeping track of what values are in the enum.
2011-02-06 20:06:09 +09:00
Bill Currie 2860a8b28b enum too is a scalar. 2011-02-06 20:01:55 +09:00
Bill Currie f2c272f0b8 Make adding a symbol to multiple tables an internal error. 2011-02-06 20:00:14 +09:00
Bill Currie d7cdf8077b Rename id_ivars to object_ivars. 2011-02-06 15:41:15 +09:00
Bill Currie c3c693e9c7 Correct construction of type_id. 2011-02-06 15:36:21 +09:00
Bill Currie e27f3fd7c3 Copy the method's params into the method symbol. 2011-02-06 15:14:42 +09:00
Bill Currie 00bba1eb3a Fix creation of uninitialized global variables. 2011-02-06 14:37:25 +09:00
Bill Currie 59d3dc6ae0 Check early for assignment of a class pointer to id. 2011-02-06 14:35:17 +09:00
Bill Currie 2f7b892452 Fix passing messages to classes.
Rename class_pointer_def() to class_pointer_symbol() and use it when a
class name is used as the receiver of a message.
2011-02-06 14:34:40 +09:00
Bill Currie 67957a14df Bring back convert_name(), but siimplified.
It is now mainly for converting __FILE__ etc, handling expression symbols,
and checking for undefined identifiers.
2011-02-06 14:29:14 +09:00
Bill Currie d03fdc5e67 Correctly calculate the size of the ivars of a class.
Need to include the size of the super class ivars.
2011-02-05 00:04:35 +09:00
Bill Currie 690ae1cb57 Fix send_message(). 2011-02-04 23:49:25 +09:00
Bill Currie 29fbc3b073 Struct and ivar declarations now seem to work.
However, not bit-fields.
2011-02-04 23:48:58 +09:00
Bill Currie 1f6abb2cce Minor cleanups to message_expr().
Fix for class names no longer being pointers to the class.
2011-02-04 23:22:51 +09:00
Bill Currie eff3957487 Resurrect the address expression code for arrays etc.
This fixes selector finding.
2011-02-04 23:20:37 +09:00
Bill Currie c542e1a453 Possibly fix normal methods. 2011-02-04 22:31:23 +09:00
Bill Currie d9446c5eb0 Fix builtin methods. 2011-02-04 22:31:22 +09:00
Bill Currie d0ecbb38b8 Copy the spec bits and storage class for QC functions. 2011-02-04 15:25:21 +09:00
Bill Currie f721144ca5 Rewrite emit_ivars to use emit_structure.
The old code was broken anyway :) (it was segfaulting).
2011-02-04 15:11:47 +09:00
Bill Currie acb3c0da11 Fix class initialization. 2011-02-04 14:29:47 +09:00
Bill Currie 04b86fcdb7 Move the Objective-QC structs from type.c to class.c 2011-02-04 12:07:32 +09:00
Bill Currie 7b22bfba63 Better Objective-QC keyword detection.
Use a flag in the keyword struct rather than checking for "@" in the
keyword. This catches such keywords as "id" and "Protocol" as well.
2011-02-04 08:38:58 +09:00
Bill Currie 993bee4f59 Do not count unimplemented methods.
The method emitter skips unimplemented methods, so counting them when
figuring out how many methods to emit leads to a segfault.
2011-02-04 08:26:16 +09:00
Bill Currie e04ed72afa Increment the index when emitting array elements.
Oops :)
2011-02-04 08:25:27 +09:00
Bill Currie d7853682af Fix conversion of nil to a real type. 2011-02-03 21:37:15 +09:00
Bill Currie f44a26e268 Fix type chaining when dealing with decls. 2011-02-03 21:32:58 +09:00
Bill Currie 54c8a10fe4 Don't trip over incomplete structs (again:P) 2011-02-03 21:31:14 +09:00
Bill Currie 12d8658ece Create a typedef for obj_module_t. 2011-02-03 18:05:46 +09:00
Bill Currie b07392b818 Allow ivars to use C syntax declarations. 2011-02-03 18:04:41 +09:00
Bill Currie dc6296e9b1 Allow ivars to use typedefs and other classes. 2011-02-03 18:03:37 +09:00
Bill Currie 2203903bb2 Temporarily splice the class's ivar chain into the symbol table.
The root class's ivar symbol table needs to be connected to the global
symbol table while building the current class's ivar symbol table. This
allows access to other classes and typedefs.
2011-02-03 18:02:49 +09:00
Bill Currie 79df3d2cca Put newly created classes into the symbol table. 2011-02-03 17:28:49 +09:00
Bill Currie 564b7b9968 Use abstract_decl instead of type wherever a generic type is needed. 2011-02-03 10:53:59 +09:00
Bill Currie a208aed6ef Fix a segfault when encoding incomplete structs. 2011-02-03 10:52:42 +09:00
Bill Currie 22ccd41164 Give struct types a name.
Use the struct/union's name (minus "tag ") for the type name.
2011-02-03 10:52:12 +09:00
Bill Currie d12cdca758 Functions and enums now seem to be working properly.
find_type now operates recursively (depth-first) so built up typechains
work as expected.

@overload is treated as a specifier (directly as a storage class, similaar
to typedef).
2011-02-03 10:48:12 +09:00
Bill Currie 52799a4e1c Must merge specifiers :P 2011-02-02 22:59:08 +09:00
Bill Currie 4420a7125e Ensure structs get added to the symbol table. 2011-02-02 22:53:53 +09:00
Bill Currie a4eaa2a89b Allow typedefed types and classes in parameters. 2011-02-02 21:58:53 +09:00
Bill Currie aeecdc84dc Get typedef working. 2011-02-02 21:58:11 +09:00
Bill Currie cca829aa6b Remove a stray semicolon from the grammar. 2011-02-02 21:57:41 +09:00
Bill Currie 400abe7fce Allow freeing of typechains. 2011-02-02 15:15:24 +09:00
Bill Currie 1fe031e8cb Build C style var/func/abs decl types from the outside in.
QuakeC style are built from the inside out.
2011-02-02 15:15:04 +09:00
Bill Currie 7fb8c8247e Don't do a find_type on the parsed function.
This is needed for C style declarations, but breaks QuakeC style. The fix
is to do the find_type once the return type has been filled in.
2011-02-02 15:08:59 +09:00
Bill Currie 1452da676d Allow types to be built from the outside in.
This is required for C style decl processing.
2011-02-02 15:07:44 +09:00
Bill Currie ac91e9376b The big type-system rewrite. Horribly broken :)
While broken, it is good enough to compile modulo.r.

This gives qfcc C's type system with QC specifics bolted on top (rather
than trying to cram C's type system into QC's). Pointers and arrays now
use C syntax and semantics (though I think there's a lot of breakage in
there at the moment). Functions themselves are still dual mode: both QC
style and C style are available.
2011-02-01 21:23:03 +09:00
Bill Currie d11d128c96 Avoid segfaulting on errors. 2011-02-01 21:18:39 +09:00
Bill Currie 80ce179bc2 Scan the param list for problems with void. 2011-02-01 21:18:08 +09:00
Bill Currie c53001800a Create a struct for representing specifiers.
The specifiers are yet to come (next few commits), but this will be
necessary when they do.
2011-02-01 21:15:51 +09:00
Bill Currie 917c5f08b0 Make a var representing the default type.
The default type for vars is integer for ruamoko and float for v6 qc.
2011-02-01 21:12:02 +09:00
Bill Currie 54c14eb899 Add "return" to pascal.
I'm still not sure I'll keep it, but it's useful for testing.
2011-01-30 22:16:59 +09:00
Bill Currie e7424e1496 Don't segfault on bare return statements.
I will probably need to do something about the required operand for v6
progs, but this will do for now.
2011-01-30 21:43:56 +09:00
Bill Currie 440a13b649 Untwist params' knickers for pascal, too. 2011-01-30 21:42:10 +09:00
Bill Currie 861ab93274 Don't type-check against the wrong type :P 2011-01-29 09:56:08 +09:00
Bill Currie afc6605739 Don't set the space for external defs. 2011-01-29 09:55:14 +09:00
Bill Currie d80a3413e5 Fix a segfault when freeing locations.
When chasing linked lists with a double pointer, must check the first
dereference and not the pointer itself.
2011-01-29 09:54:47 +09:00
Bill Currie e1226bd3f1 Quaternions aren't vectors :P 2011-01-28 21:57:04 +09:00
Bill Currie 2cce903cc9 Set the default storage class for local vars. 2011-01-28 21:56:17 +09:00
Bill Currie bc7d42d176 Immediate constants now work, though still not shared. 2011-01-28 21:39:01 +09:00
Bill Currie 3c95667b79 Print data contents for most simple types. 2011-01-28 21:21:29 +09:00
Bill Currie 4476074021 Print more addresses as hex. 2011-01-28 18:03:26 +09:00
Bill Currie 4837e0bd18 Fix most of the FIXMEs in qfcc.c.
Functions and defs seem to be relocated correctly. Constants are very
broken, however.
2011-01-28 15:17:30 +09:00
Bill Currie 834417b8c8 Add "debug" diagnotic printing, and use it.
Debug diagnostics are silent for verbosity levels less than 1.
2011-01-28 13:28:45 +09:00
Bill Currie a37bdd9fb5 Free removed sblocks. 2011-01-28 13:23:20 +09:00
Bill Currie 80424f6ad5 Ensure functions are always properly terminated.
Control that reaches the end of a function must see a return statement.
2011-01-28 13:14:30 +09:00
Bill Currie 9159daf99d Do simple unreachable block analysis and dead block removal. 2011-01-28 11:45:04 +09:00
Bill Currie 90a2738459 Add the label to the block to which it refers. 2011-01-28 11:41:53 +09:00
Bill Currie c158b14286 Remove the labels list from the pr struct.
I'm not sure they were ever needed.
2011-01-28 11:40:25 +09:00
Bill Currie 4738c767a2 Fix branch label handling.
Conditional branches and goto now go to the correct location.
2011-01-27 21:11:32 +09:00
Bill Currie 95b17d9fd4 Rename add_statement_ref to add_statement_def_ref. 2011-01-27 21:10:37 +09:00
Bill Currie bd78b8a7ee Enable more end-of-compilation code. 2011-01-27 15:44:12 +09:00
Bill Currie cdea1d07aa Produce code for progs.src mode.
Separate compilation will take fixing object files.

The generated code is broken due to various relocation fixups being
broken, and float immediates seem to be badly broken.

Debug information is broken too.
2011-01-27 15:44:11 +09:00
Bill Currie c7bbd40df6 Give special treatment to opcodes that have void operand types. 2011-01-27 15:44:11 +09:00
Bill Currie 71b5decbe8 Get assignments to .return working.
I really do not like the mechanism I currently use for handling pointer
derefences vs pointer assignments, but this will have to do for now until
I can get qfcc producing code again.
2011-01-27 15:44:11 +09:00
Bill Currie 56106892c8 The & operator produces a pointer, not void. 2011-01-27 15:44:10 +09:00
Bill Currie 1c3cc571f1 Pascal variables need defs too. 2011-01-27 15:44:10 +09:00
Bill Currie f532fbc6df Convert all integer operands to float for v6 progs.
Converting only opc is no longer enough.
2011-01-27 15:43:59 +09:00
Bill Currie 1ed1efbdfb Implement the ROTL macro correctly.
Bit rotation requires unsigned ints.
2011-01-27 15:43:50 +09:00
Bill Currie a6e65488ec Remove the "test" parameter from test_expr.
The parameter became redundant at some stage.
2011-01-27 08:31:51 +09:00
Bill Currie f7d60397fb Set the type for zer_def used by labels. 2011-01-26 22:43:59 +09:00
Bill Currie 36c99a8da1 Get function def creation working again. 2011-01-26 14:48:22 +09:00
Bill Currie 5231e8e9f8 Handle .zero, .return and .param* properly. 2011-01-26 08:01:24 +09:00
Bill Currie 4966120e3b Untwist param's knickers. 2011-01-25 20:21:41 +09:00
Bill Currie 6ce3c5a59a Get statments being emitted to the code segment.
The first function seems to work fine, but there's a problems with the
scope of params causing params to get their knickers in a twist (tangled
linked list).
2011-01-25 15:46:48 +09:00
Bill Currie fd3b594ca5 Move label relocs to the relevant statement block. 2011-01-25 15:45:31 +09:00
Bill Currie 849d013f5e Allocate space for function parameters. 2011-01-25 15:43:57 +09:00
Bill Currie f45919df09 Need alias defs after all. 2011-01-25 15:42:26 +09:00
Bill Currie a648f043de Give functions their own defspace.
The defspace is propogated through the function's sub-scopes.
2011-01-25 12:34:45 +09:00
Bill Currie 27c5139612 Give defspaces some backing memory.
I'm not sure I want all defspaces to have backing memory, but this will do
for now.
2011-01-25 12:16:13 +09:00
Bill Currie 34ffce50fa Ensure current_symtab gets set at the start of parsing.
current_symtab must be set even if the first thing encountered is a syntax
error.
2011-01-25 12:16:13 +09:00
Bill Currie 69b889756d Fix a misplaced ! 2011-01-25 12:16:13 +09:00
Bill Currie 726f293d0d Allocate space for defs and handle basic initializations.
Block initializers (arrays and structs) are still broken.
2011-01-25 12:16:13 +09:00
Bill Currie 30701980bc Get QC cfunctions and defs working. 2011-01-25 12:16:13 +09:00
Bill Currie ade2e92ea4 Fix the immediate breakage in immediate handling. 2011-01-25 09:08:11 +09:00
Bill Currie 7e914b8c53 Fix copyright headers.
Add forgotten templates and fill in the information in places I had
forgotten. I hope I got the dates right (timezone issues).
2011-01-25 09:01:37 +09:00
Bill Currie 49b7c2d527 Document make_symbol 2011-01-25 09:01:37 +09:00
Bill Currie 0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +09:00
Bill Currie d618e51dc8 Move save_string and make_string into strpool
Might not be the perfect place, but at least they're strongly related.
2011-01-24 21:32:48 +09:00
Bill Currie 483cbeba03 Fix a few FIXMEs. 2011-01-24 21:13:37 +09:00
Bill Currie afc5b2827d Simplify def handling, use far data.
Since there is now a proper symbol table, defs are now just references to
memory locations and the symbol table takes care of duplicates.

Also, start using far data for ObjQC structures.

The qfo functions have been stubbed out until I figure out what to do with
object files in the new scheme.
2011-01-24 15:41:43 +09:00
Bill Currie ce02fe8660 Fix the order of paramenters in the tree output.
Also get call nodes looking a little better.
2011-01-23 12:59:30 +09:00
Bill Currie a79b6f0a6c Partially implement casts. 2011-01-23 11:53:08 +09:00
Bill Currie bf626c9e00 Fix some simple fixmes 2011-01-23 11:13:56 +09:00
Bill Currie 20b14af024 Add "is_math" type check and use for unary +/-. 2011-01-23 11:12:58 +09:00
Bill Currie 341f370662 Rename is_math() to is_math_op(). 2011-01-23 11:12:05 +09:00
Bill Currie dea6771d92 Create type_nil for passing nil into ... 2011-01-22 16:41:31 +09:00
Bill Currie 4ac80c2932 Get qfcc running again.
It segs when it tries to link, but that's because a real object file has
not been created yet. However, I can get my tree and flow diagrams :)
2011-01-22 15:52:57 +09:00
Bill Currie 55d3d17807 Add a missing break.
"return" falling through to "goto" was bad news :)
2011-01-22 15:52:01 +09:00
Bill Currie d5f669af7a Nuke temp reference counting.
The whole reason for this crazy developement branch :)
2011-01-22 11:40:53 +09:00
Bill Currie 3b462e16cf Produce flow diagrams of the basic blocks. 2011-01-22 11:40:53 +09:00
Bill Currie 246778b5de Use function pointer tables instead of switch.
This seems to be better for complicated code. switch seems to be better
suited for relatively simple code.
2011-01-22 11:40:53 +09:00
Bill Currie 2f09efe547 Break out print_expr into its own file. 2011-01-21 20:31:40 +09:00
Bill Currie bcb2667b73 Possibly get vector calls working. 2011-01-21 19:40:46 +09:00
Bill Currie 52b561f7cb Nuke bind expressions.
Since I'm planning on implementing CSE and other optimizations, they're
rather redundant (and I'm having trouble getting them to work).
2011-01-21 19:07:58 +09:00
Bill Currie 0d01930056 Link a bool to its block rather than the block's head.
This makes the flow make a little more sense.
2011-01-21 18:50:17 +09:00
Bill Currie 977c48d728 Make operator type overrides clear. 2011-01-21 15:57:53 +09:00
Bill Currie aec9f256a7 Get calls mostly working.
Bind seems to be broken, but parameters seem to be being set correctly.
2011-01-21 15:54:53 +09:00
Bill Currie 5c5fa67e43 Minor tweaks of the expression tree output. 2011-01-21 15:34:42 +09:00