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488 commits

Author SHA1 Message Date
Bill Currie
45de7327dc Implement alias expressions (finally). 
Alias expressions are like cast expressions, but never do any conversions.
 2011-03-03 11:06:10 +09:00
Bill Currie
c12211d8bb Support enum results for boolean expressions. 
eg enum BOOL x = a && b;
 2011-03-02 22:46:55 +09:00
Bill Currie
aa4ed00090 Fix the message type used to check arguments. 2011-03-02 22:13:16 +09:00
Bill Currie
4fd6bdae6f Allow nil to be assigned to field variables. 
Note, this is the field variable itself, not the field in the entity.
eg:
	.integer x = nil;
 2011-02-22 09:19:01 +09:00
Bill Currie
5252d72856 Correct the type for _OBJ_SELECTOR_TABLE. 2011-02-15 15:33:12 +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
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
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
b545f72f93 Report errors for incomplete types and missing fields. 2011-02-13 20:23:08 +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
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
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
a1d4d4bae1 Handle block expressions in is_indirect(). 2011-02-11 22:29:30 +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
681ded9375 Fix debug line number information. 2011-02-09 09:59:43 +09:00
Bill Currie
6643c5dd98 Fix messages to super. 2011-02-08 17:09:27 +09:00
Bill Currie
93a5808659 Support direct struct/union field access. 2011-02-08 14:48:26 +09:00
Bill Currie
92799650c0 Implement struct field access via a pointer. 2011-02-07 22:15:10 +09:00
Bill Currie
d549e5c6b5 Allow enums to be tested. 2011-02-07 11:30:56 +09:00
Bill Currie
829fb33e92 Fix converting nil to a pointer type. 2011-02-07 10:10:48 +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
e4ac92b5f2 Auto-cast between enums and the default type. 2011-02-06 20:08:16 +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
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
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
d7853682af Fix conversion of nil to a real type. 2011-02-03 21:37:15 +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
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
5231e8e9f8 Handle .zero, .return and .param* properly. 2011-01-26 08:01:24 +09:00
Bill Currie
0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +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
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
d5f669af7a Nuke temp reference counting. 
The whole reason for this crazy developement branch :)
 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
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
5c5fa67e43 Minor tweaks of the expression tree output. 2011-01-21 15:34:42 +09:00
Bill Currie
35b7278967 Re-disable the next-edge constraints. 
This gives a flatter layout.
 2011-01-20 15:36:10 +09:00
Bill Currie
08e387ebac Slight improvement to branch instruction nodes/labels. 2011-01-20 15:33:13 +09:00
Bill Currie
f8cc347dce Print expressions as dot files. 
While the resulting images can be a little confusing, they're much easier
to read than my cryptic postfix notation.
 2011-01-20 15:23:19 +09:00
Bill Currie
5deda9c9b9 Clean out ex_def as ex_symbol replaces it. 2011-01-19 22:25:04 +09:00
Bill Currie
b5424bca7d Start work on getting expressions converted to internal statements. 2011-01-19 15:47:45 +09:00
Bill Currie
f2ef24d0cc Make symbols use the new value struct for constants. 2011-01-19 11:09:54 +09:00
Bill Currie
e08efe036b Move the constant expression values into their own struct. 2011-01-19 08:43:24 +09:00
Bill Currie
87ce9f5333 Get basic function creation working. 
Even more FIXMEs, but the pascal parser can now create functions. The
function records even get emitted.
 2011-01-18 12:47:13 +09:00
Bill Currie
ea3895805b Rewrite much to use symbols and symtabs. Gut emit.c. Massive breakage. 
That which isn't rewritten is horribly broken. However, this does include a
nice mechanism for building QC structs for emitting data.

emit.c has been gutted in the spirit of "throw one away".

There is much work to be done to get even variables emitted, let alone
code. Things should be a little more fun from here on.
 2011-01-17 22:34:41 +09:00
Bill Currie
d3a98af783 Make internal_error globally available. 2011-01-17 22:34:41 +09:00
Bill Currie
8f71986306 Add symbol expressions (like def expressions). 
They will eventually replace def expressions. Currently quite broken.
 2011-01-13 14:54:24 +09:00
Bill Currie
258c896e4d Create a function to build if/else blocks. 2011-01-13 14:33:16 +09:00
Bill Currie
c787923c99 Forgot to remove that print_expr. 2011-01-11 12:11:54 +09:00
Bill Currie
08bf7e24de Produce nicer code for post-op. 
The temp notice is still there for arrays (that's caused by issues in
constfold.c, not easily fixilbe), but it's harmless and correct (and nice)
code is much more important.
 2011-01-11 12:07:48 +09:00
Bill Currie
ad787ae98a Set the expression type to the correct value for addresses. 2011-01-11 12:06:40 +09:00
Bill Currie
21d7c78eb7 Allow deep copying of expression trees. 
Certain expression types (eg labels) are created fresh.
 2011-01-11 12:05:29 +09:00
Bill Currie
abe471110c Make inc/dec_users return the the expression. 
Just for convenience.
 2011-01-11 08:44:43 +09:00
Bill Currie
18ae178eaf Make new_vector_expr and new_quaternion_expr const-correct. 2011-01-11 08:43:34 +09:00
Bill Currie
cd38bd71fa Swap the order of scale and base for calculating the array index. 
fold_constants doesn't like dags very much, but it can do the right thing
if the expressions are in the right order. This is merely a workaround
until I get to work on the code generator itself.
 2011-01-10 12:26:11 +09:00
Bill Currie
d327c860cb Get messages working again. 2011-01-10 12:26:11 +09:00
Bill Currie
75ec6bf244 Clean out some unnecessary types from the progs engine and clean up the mess. 
This is a nasty commit, sorry, but 99% of the commit is interdependent.
 2011-01-10 12:25:31 +09:00
Bill Currie
02f78e46f8 More expression docs. 2011-01-03 16:25:59 +09:00
Bill Currie
5627e43465 Use the method's selector rather than its def name in error messages. 2011-01-03 16:25:29 +09:00
Bill Currie
a4635d79e8 Slightly more informative error locations. 
Inside a class or protocol definition is not "at top level" ;)
 2011-01-03 16:25:29 +09:00
Bill Currie
530e8fae34 Rework class_type_t to be more useful. 
This allows current_class to refer to procols as well (for error
reporting).
 2011-01-03 16:25:29 +09:00
Bill Currie
52e844ee48 Produce slightly better v6 modulo code for complex inputs. 
I'm having problems with temp defs, but I imagine this code is rarely used
so I won't worry about it for now. It will, however, make a good test case
for when I rework emit.c after I do some reading.
 2010-12-19 11:23:33 +09:00
Bill Currie
d981968208 v6 modulo implementation now produces good code. 
At least for simple inputs, anyway. That needs to be tested next.
 2010-12-18 22:21:55 +09:00
Bill Currie
00e50c0ad3 Rewrite the v6 modulo implementation. 
While trying to understand bind expressions, I discovered that the v6
modulo code was incorrect. This version is correct but uses one too many
temps. That's next.
 2010-12-18 22:21:55 +09:00
Bill Currie
eace5b3c81 Get message checking working properly. 2010-12-16 16:41:16 +09:00
Bill Currie
e28ee0378f Gracefully handle returning NIL though a bad type. 2010-11-24 17:01:18 +09:00
Bill Currie
67beaf4487 Nil is a constant, so allow it in global initializers. 2010-11-24 17:01:18 +09:00
Bill Currie
799d46f83d Check for incomplete types and better param/return size checking. 2010-11-24 17:01:17 +09:00
Bill Currie
997102fea8 audit the usage of "only" 
There are still a few iffy places (notably around certain prepositions), but
the relevant sentences are now much easier to read.
 2010-01-13 06:42:26 +00:00
Bill Currie
0d4a2938a2 forgot to check for errors 2010-01-13 06:32:10 +00:00
Bill Currie
ae4fc3147d allow '*pointer' expressions 2010-01-13 06:31:41 +00:00
Bill Currie
ccb8faf6ef produce a warning for the likes of "x - x & y" 2010-01-13 06:26:18 +00:00
Bill Currie
40fefff847 fix incorrect users for temps resulting from casting the result of ?: 
There are probably other situations, but I'll fix them as they show up.
 2010-01-13 06:25:06 +00:00
Bill Currie
090527eaec silence some debug output 2010-01-13 06:20:22 +00:00
Bill Currie
fe95805d86 various gcc 4.3 fixes 2008-07-19 05:40:57 +00:00
Bill Currie
a521a78adb catch more uninitialized variables 2007-05-13 08:39:07 +00:00
Bill Currie
c81c074660 mark used constants as used 2007-05-13 08:20:19 +00:00
Bill Currie
2149aefe67 not so sure that one's needed 2007-05-08 03:24:49 +00:00
Bill Currie
5798c9d67a wasn't catching the precedence inversion in (x - x & y) even though it was caught for (x & y - x). 2007-05-08 02:54:50 +00:00
Bill Currie
3deee307a8 check for uninitialized variables in return statements 2007-04-28 08:48:01 +00:00
Bill Currie
52d178b3be Add a code generation option, "local-merging", to control qfcc's merging of local variable blocks into one block. Defaults to on for advanced mode and off for traditional. 2007-04-10 13:00:21 +00:00
Bill Currie
966c337bf5 use the def's declaration line rather than the function's when reporting auto-initialization 2007-04-06 11:05:52 +00:00
Bill Currie
04765083aa really warn only once for each uninitialized variable 2007-04-06 08:56:37 +00:00
Bill Currie
5a8143a9c7 support float = vector and vector = float for traditional 2007-04-06 08:23:07 +00:00
Bill Currie
72af804b31 nested include reporting 2007-03-31 15:27:36 +00:00
Bill Currie
904197c70e allow assignment of arrays to poitners 2006-12-11 09:26:45 +00:00
Bill Currie
728dde167d explicity state errors are errors rather than leaving it implicit (tracking 
gcc's messages again;)
 2005-08-17 23:05:10 +00:00
Bill Currie
3fb03fc2be hah, should have been using __attribute__((used)) all that time (rather 
than __attribute__((unused))). fixes the missing console in -x11
 2005-08-04 15:27:09 +00:00
Bill Currie
66cabb587f add the vector-calls "optimisation" from fteqcc. makes it possible to 
compile the version of frogbot with waypoints for almost 300 maps.
 2005-06-10 07:31:25 +00:00
Bill Currie
554f4d071a get the type right when accessing arrays in a struct (in a pointer?) 
This is an imperfect revision of history.
 2004-11-13 13:22:30 +00:00
Bill Currie
66257e3a88 run in fear, function overloading is here 
This is an imperfect revision of history.
 2004-11-13 11:50:00 +00:00
Bill Currie
9b81bc5ea6 allow access to the parameter type via @param and variable initializers for local arrays/structs. 
This is an imperfect revision of history.
 2004-11-13 04:02:00 +00:00
Bill Currie
4d044bfea4 make entity.vector.x work properly by making relative field offset work. also don't emit a field def for the resulting immediate 
This is an imperfect revision of history.
 2004-11-12 10:49:00 +00:00
Bill Currie
abf25e0e1c real fix for uninitialized functions 
This is an imperfect revision of history.
 2004-11-12 05:04:00 +00:00
Bill Currie
b35561504c do proper selector registration. unfortunatly, I discovered I'd created pr_method_t incorrectly and so had to bump the progs version again 
This is an imperfect revision of history.
 2004-11-10 05:37:00 +00:00
Bill Currie
a3a2dd62e3 fix type of "self" 
This is an imperfect revision of history.
 2004-11-02 07:13:00 +00:00
Jeff Teunissen
b057b6cb26 Some signed/unsigned formatting stuff found by lint. 2004-04-27 23:17:41 +00:00
Bill Currie
14900bb82e fast-float code option (defaults to on). kills almost 3000 statements from 
prozac
 2004-04-27 20:24:37 +00:00
Bill Currie
9a3acc8035 get the field offset correctly 2004-04-09 04:30:19 +00:00
Bill Currie
7b28c555ba quaternion field access now works 2004-04-09 04:12:44 +00:00
Bill Currie
4c4f40f137 fix a few bugs. basics seem to be working 2004-04-08 05:13:24 +00:00
Bill Currie
5869cb693e oops 2004-04-08 05:04:50 +00:00
Bill Currie
a7103c6732 quaternion conjugate 2004-04-08 04:59:10 +00:00
Bill Currie
4882005a49 compile fixes (oops) and start working on quaternion support in qfcc 2004-04-08 02:33:20 +00:00
Bill Currie
14e8bfe94b auto-init for uninitialized locals in traditional mode as requested by 
Grievre
 2004-02-21 05:52:05 +00:00
Bill Currie
0360859a0f all warnings (except for @self and self) are now fully controllable 2004-02-17 00:39:21 +00:00
Bill Currie
c3f41e3e69 new opcode: state.f. same as state, but takes a 3rd float operand to 
specify the step for calculating nextthink. accessed using
[frame, think, step] (state is [frame, think])
 2004-02-11 01:43:33 +00:00
Bill Currie
1181fb267b don't seg when constants are involved in && or || expressions 2004-02-09 02:23:37 +00:00
Bill Currie
f70605f5f7 ensure a op= b treats b as if it was (b) 2004-02-08 05:28:30 +00:00
Bill Currie
1d800caab7 make autoconvertion work for return 2004-02-06 08:40:28 +00:00
Bill Currie
d02b0686b1 don't seg if the method can't be found 2004-02-04 06:31:12 +00:00
Bill Currie
c43950abd8 autoconvert for function parameters now works :) 2004-02-04 05:49:54 +00:00
Bill Currie
892e80938b that made a royal mess :( 2004-02-04 04:49:46 +00:00
Bill Currie
b2474a2b97 better auto-conversion of function parameters (ugh, this is getting messy 
:( )
 2004-02-04 04:33:08 +00:00
Bill Currie
f79e34628b broke returning NIL 2004-02-04 02:30:18 +00:00
Bill Currie
ab4f0e7ca9 warn on return foo (); where foo returns void 2004-02-04 01:30:12 +00:00
Bill Currie
f05be31cae fix for perc = itof (perc_val) / (100 / itof (size)); 
ie, better detection of function calls in binary expressions
 2004-01-31 04:11:45 +00:00
Bill Currie
f8ed454547 warn on if (a = b) 2004-01-25 21:45:07 +00:00
Bill Currie
7423ee389d better timing for constant folding 2004-01-25 21:36:44 +00:00
Bill Currie
51b0a66ac7 better constant folding with auto-conversion between scalar types (might 
make that optional for non-constants)
 2004-01-25 08:55:03 +00:00
Bill Currie
8f440c7911 linker.c: 
I think I found the real reason doxygen gets confused
expr.c:
	add a check for x & y == 2 (or similar) doesn't work for constant y at
	the moment.
 2004-01-22 01:04:48 +00:00
Bill Currie
2f21926568 more constant folding 2004-01-21 21:58:34 +00:00
Bill Currie
bb4e9de0db fix a real oopsie with if (const) 2003-11-16 07:17:18 +00:00
Bill Currie
834ab26be5 remove some buggy debug code :P 2003-10-27 21:48:13 +00:00
Bill Currie
63414ea836 more gccisms in the error reporting (In function ...) 2003-10-25 04:35:47 +00:00
Bill Currie
58d0f188f1 recover from errors in bool expressions (ie, don't segfault) 2003-10-24 22:23:56 +00:00
Bill Currie
c76282c668 fix bools in function calls 2003-10-22 16:49:57 +00:00
Bill Currie
5f97de56d1 fix a few bugs 2003-10-22 09:14:53 +00:00
Bill Currie
969dad87eb fix a secfault in return_expr 2003-10-22 08:30:54 +00:00
Bill Currie
72ae59f882 short circuit logic can now be controlled (see man page) 2003-10-22 08:27:38 +00:00
Bill Currie
945006494f short circuit logic for && and || (as per C). forces standard precedence 
(ie, breaks --traditional) when enabled (no choice at the moment, next fix)
 2003-10-22 08:05:17 +00:00
Bill Currie
91207c0180 make void functions actually return float in traditional mode (qcc allowed 
things like foo = void_function)
 2003-09-23 16:57:53 +00:00
Bill Currie
387464a27c mangle precedence of = relative to && and || for --traditional (bletch). 
also make noise when assigning to bad lvalues (eg !x = y)
 2003-09-23 16:42:03 +00:00
Bill Currie
ba26628b80 --traditional now "fixes" (ie, breaks) operator precedence to match qcc 
except for the relationship between "=" and "&&" and "||": not sure I want
to go that far towards bug compatability.
 2003-09-22 22:15:31 +00:00
Bill Currie
11538d4745 access arrays in structs more efficiently (especially when using constant 
indeces)
 2003-09-02 17:41:16 +00:00
Bill Currie
6086aa2b99 allow casts between pointers and integers 2003-08-24 08:03:25 +00:00
Bill Currie
385a90e8fb correct pr_symtab_t to include the pointer to the array of selectors used 
in the module. Unfortunatly, this requires a version bump on both qfo and
progs files due to the changes structure layout.
 2003-08-23 06:15:19 +00:00
Bill Currie
b38486d405 make rel_def_op work properly 2003-08-22 19:48:14 +00:00
Bill Currie
d20b8bf0c1 pass NIL though ... safely 2003-08-22 06:04:31 +00:00
Bill Currie
204243fe95 better message type checking 2003-08-22 05:26:47 +00:00