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Author SHA1 Message Date
Bill Currie
48514ba2f3 [qfcc] Create alias def for defs accessed via pointer 
This the fixes the incorrect flow analysis caused by the def being seen
to have the wrong size (structure field of structure def seen through a
constant pointer). Fixes the ICE, but the pointer constant is broken
somewhere in dags, presumably.
 2020-03-07 01:30:36 +09:00
Bill Currie
f7757cf894 [qfcc] Add filename to dot output 
It makes things so much easier when viewing the graphs
 2020-03-06 21:05:53 +09:00
Bill Currie
de06efa604 [qfcc] Fix handling of nil for static initializers 
nil is most definitely constant.
 2020-03-06 20:38:40 +09:00
Bill Currie
9dbc81432a [qfcc] Use full type for differentiating values 
This fixes the problem of using nil for two different compound types
within the one expression. The problem is all compound types have the
same low-level type (ev_invalid) and this caused the two different nils
to have the same type when taken back up to expression level.
 2020-03-06 20:33:47 +09:00
Bill Currie
07e6baf32f [qfcc] Support { } as nil in nested initializers 
Did top-level earlier, but forgot to add support for deeper nestings.
 2020-03-06 20:32:37 +09:00
Bill Currie
9b269c2f8e [qfcc] Fix mangled method parameters 
Method parameters (ie, extra parameters without selector names) were
getting reversed during function type construction.
 2020-03-06 17:37:58 +09:00
Bill Currie
94e35b5f57 [qfcc] Clean up error messages around superclass 2020-03-05 21:10:15 +09:00
Bill Currie
66b8ab6890 [qfcc] Rework method ivar access 
While expression symbols worked for what they are, they weren't so good
for ivar access because every ivar of a class (and its super classes)
would be accessed at method scope creation, generating spurious access
errors if any were private. That is, when the access checks worked at
all.
 2020-03-05 18:45:47 +09:00
Bill Currie
1bf56b28ac [qfcc] Warn when messaging a forward-declared class 
But only once.
 2020-03-05 15:39:34 +09:00
Bill Currie
59db90d177 [qfcc] Fix method not found warnings 
It turns out they should not be optional, but do need to be smarter
about when and which. So another two FIXMEs gone :)
 2020-03-05 14:48:53 +09:00
Bill Currie
669c8f43d8 whitespace 2020-03-05 14:48:49 +09:00
Bill Currie
ccaa4ad3d2 [qfcc] Catch assignment of void* to class pointers 
id and other class pointers imply that the object can receive messages,
but void * has no such implication, so treat it as a mismatch.
 2020-03-05 14:14:20 +09:00
Bill Currie
65a5e4f2a4 [qfcc] Allow inherited methods to satisfy protocols 
I suspect that the current state of things will produce problems later
on, but this works for now.
 2020-03-05 12:52:37 +09:00
Bill Currie
1459361cbd [qfcc] Set builtin function def flags 
This fixes the missing redefinition error when a builtin is defined
twice (and thus corrupting the function chain).
 2020-03-05 11:48:15 +09:00
Bill Currie
9ccfe8aefc [qfcc] Rewrite init_elements 
The end goal was to fix erroneous non-constant initializer errors for
the following (ie, nested initializer blocks):

    typedef struct { int x; int y; } Point;
    typedef struct { int width; int height; } Extent;
    typedef struct Rect_s { Point offset; Extent extent; } Rect;
    Rect makeRect (int xpos, int ypos, int xlen, int ylen)
    {
	Rect rect = {{xpos, ypos}, {xlen, ylen}};
	return rect;
    }

However, it turned out that nested initializer blocks for local
variables did not work at all in that the relocations were lost because
fake defs were being created for the generated instructions.

Thus, instead of creating fake defs, simply record the offset relative
to the base def, the type, and the basic type initializer expression,
then generate instructions that all refer to the correct def but with a
relative offset.

Other than using the new element system, static initializers are largely
unaffected.
 2020-03-05 11:05:13 +09:00
Bill Currie
78b71c28fe [qfcc] Make reloc functions const-correct 2020-03-05 11:03:23 +09:00
Bill Currie
efcbbbb641 [qfcc] Catch use of missing superclass interfaces 2020-03-05 08:50:29 +09:00
Bill Currie
896c14f33a [qfcc] Support anonymous structs in ivars 
Missed this earlier.
 2020-03-05 08:47:21 +09:00
Bill Currie
0bb4279a9f [qfcc] Handle bitwise not of enums 
It looks like I need to handle other unary expressions too, but another
time.
 2020-03-05 01:45:38 +09:00
Bill Currie
269a8a558a [qfcc] Allow bare enum and named struct declarations 
Got a little overzealous there
 2020-03-04 18:39:41 +09:00
Bill Currie
f532780dbe [qfcc] Treat opaque structs as not anonymous 
I don't know why the segfault happened where it did, but
forward-declared structs certainly can't be used as anonymous structs.
 2020-03-04 18:38:04 +09:00
Bill Currie
7a2335e9f4 [qfcc] Catch useless specifiers in function scope 2020-03-04 18:07:10 +09:00
Bill Currie
4c82114547 [qfcc] Catch several useless specifier expressions 2020-03-04 17:40:49 +09:00
Bill Currie
597890dda1 [qfcc] Catch duplicate field definitions 2020-03-04 16:32:04 +09:00
Bill Currie
e298904dc0 [qfcc] Implement anonymous structs and unions 
For struct/union scope
 2020-03-04 16:31:28 +09:00
Bill Currie
4fa203852a [qfcc] Use offset alias offset when creating alias of offset alias 
Yes, that's correct. It happens when casting the address of a structure
field (for the test case this fixes, vector field).
 2020-03-04 00:55:31 +09:00
Bill Currie
b186332da0 [qfcc] Make initialization of external vars an error 2020-03-03 17:33:56 +09:00
Bill Currie
b8984e5f66 [qfcc] Fix another infinite loop in the linker 
I think this should be it for infinite loops caused by undefined
symbols. I don't know why I didn't remove this continue when I removed
the other.
 2020-03-03 13:39:24 +09:00
Bill Currie
c7cde5f409 [qfcc] Pass gcc's purity test 
*sigh*
 2020-03-03 10:59:01 +09:00
Bill Currie
16223098e5 [qfcc] Fix ivar visibility 
It was broken by the big rewrite and I forgot to fix it.
 2020-03-03 10:42:05 +09:00
Bill Currie
ed04e6fc23 [qfcc] Merge method lists instead of copying 
This is for adding methods to classes and protocols via their interface,
not for adding methods by adding protocols (they still get copied).
Slightly more memory efficient.
 2020-03-03 00:11:54 +09:00
Bill Currie
f025bd96d4 [qfcc] Copy self param when copying methods 
Copying methods is done when adding protocols to classes (the current
use for adding regular methods is an incorrect solution to a different
problem). However, when a method is added to a class, the type of its
self parameter is set to be a pointer to the class. Thus, not only does
the method need to be copied, the self parameter does too, otherwise
the self parameter of methods added via protocols will have their type
set to be a pointer to the last class seen adding the protocol.

That is, if, while compiling the implementation for class A, but the
interface for class B is comes after the interface for class A, and both
A and B add protocol P, then all methods in protocol P will have self
pointing to B rather than A.

@protocol P
-method;
@end

@interface A <P>
@end

@interface B <P>
@end

@implementation A
-method	{} // self is B, not A!
@end
 2020-03-02 23:46:26 +09:00
Bill Currie
8a4de6fea6 [qfcc] Fix segmentation fault for parameter errors 2020-03-02 22:38:12 +09:00
Bill Currie
f6d650d473 [qfcc] Merge duplicate methods in interfaces 
Duplicate methods in an interface (especially across protocols and
between protocols and the interface) are both harmless and even to be
expected. They certainly should not cause the compiler to demand
duplicate method implementations :)
 2020-03-02 21:15:21 +09:00
Bill Currie
e33d83fc9e [qfcc] Accept "struct foo; struct foo { ... };" 
That is, do not treat structure definition after declaration to be a
redefinition.
 2020-03-02 20:16:29 +09:00
Bill Currie
5893bd7501 [qfcc] Catch erroneous negative builtin numbers 
Setting a builtin number negative makes it a non-builtin function, but
possibly in the middle of another function. Not good.
 2020-03-02 13:47:46 +09:00
Bill Currie
0db617719e [qfcc] Improve error messages for bad qc builtins 
While global quakec functions could not be initialized to another
function, the error messages were rather obscure.
 2020-03-02 13:47:46 +09:00
Bill Currie
9ccff74fcf [qfcc] Emit only one instance per protocol per module 
This is actually a double issue: when a class implementing a protocol
used the protocol in @protocol(), not only would the protocol get
emitted as part of the class data specifying that the class conforms to
the protocol, a second instance would be emitted again when @protocol()
was used. On top of that, only the instance referenced by @protocol()
would be initialized. Now, both class emission and @protocol() get their
protocol def from the same place and thus only one, properly
initialized, protocol instance is emitted.
 2020-03-02 10:55:46 +09:00
Bill Currie
8021613b79 [qfcc] Fix missing protocol method lists 
The problem was an erroneous assumption that the methods had to be
defined. Any class implementing a protocol must implement (and thus
define) the methods, but a protocol declaration cannot: it merely
declares the methods, and it's entirely possible for a module to see
only the protocol definition and not any classes implementing the
protocol.
 2020-03-02 10:52:09 +09:00
Bill Currie
b6b7f9675f [qfcc] Emit static instance lists 
For now, only protocols are in the list (gcc adds only static string
objects and qfcc doesn't do those yet, so not so far behind). qfprogs
dumps them.
 2020-03-02 10:48:51 +09:00
Bill Currie
544d7de1ec [qfcc] Implement @protocol(foo) 
Unlike gcc, qfcc requires foo to be defined, not just declared (I
suspect this is a bug in gcc, or even the ObjC spec), because allowing
forward declarations causes an empty (no methods) protocol to be
emitted, and then when the protocol is actually defined, one with
methods, resulting in two different versions of the same protocol, which
comments in the gnu objc runtime specifically state is a problem but is
not checked because it "never happens in practice" (found while
investigating gcc's behavior with @protocol and just what some of the
comments about static instance lists meant).
 2020-03-02 10:42:26 +09:00
Bill Currie
254bf29bd4 [qfcc] Handle protocol forward declarations 2020-03-01 19:37:40 +09:00
Bill Currie
80d9401eee [qfcc] Report errors for objects in function decls 
The number of time's I've forgotten the * in a declaration in objective
code (probably thanks to C#'s lack of them).
 2020-03-01 17:44:13 +09:00
Bill Currie
b544321609 [qfcc] Catch deferences to incomplete types 
Reporting an error is so much more helpful than segmentation fault.
 2020-03-01 17:43:28 +09:00
Bill Currie
277c64a460 [qfcc] Correct a typo 2020-03-01 17:28:51 +09:00
Bill Currie
caa297b756 [qfcc] Remove type alias encoding 
It proved to be too fragile in its current implementation. It broke
pointers to incomplete structs and switch enum checking, and getting it
to work for other things was overly invasive. I still want the encoding,
but need to come up with something more robust.a
 2020-03-01 16:13:18 +09:00
Bill Currie
1033716b2b [qfcc] Fix some curly space 2020-03-01 13:53:18 +09:00
Bill Currie
271d836cd2 [qfcc] Catch static class instances in structs 2020-02-29 21:09:24 +09:00
Bill Currie
e93ca9d828 [qfcc] Fix infinite loop in linker 2020-02-29 20:13:25 +09:00
Bill Currie
b4aebc120e [qfcc] Treat { } as nil for initializing compound types 2020-02-27 20:30:39 +09:00
Bill Currie
7c9072aebf [qfcc] Create struct fields for "type typename" 
Such declarations were being lost, thus in the following, the id field
never got added:
typedef struct qwaq_mevent_s {
    int         id;
    int         x, y, z;
    int         buttons;
} qwaq_mevent_t;
 2020-02-27 17:50:11 +09:00
Bill Currie
dbbb8a1396 [qfcc] Fix syntax error for id as a field name 
event.e.mouse.id produced a syntax error, which is contrary to
Objective-C.
 2020-02-27 17:43:39 +09:00
Bill Currie
4cec3bbff6 Unalias types when checking cast-compatibility 
This fixes the problem with passing typedefs to function parameters.
 2020-02-26 17:49:09 +09:00
Bill Currie
69b5029de5 Throw away function parameter type alias info 
typedef is meant to create a simple renaming of a potentially complex
type, not create a new type. Keeping the parameter type alias info makes
the types effectively different when it comes to overloaded function
resolution, which is quite contrary to the goal. Does expose some
breakage elsewhere, though.
 2020-02-26 17:46:53 +09:00
Bill Currie
9528c1176e Rename cast_expr's type vars for better clarity 2020-02-26 17:45:08 +09:00
Bill Currie
5c36c60005 Use type check helpers some more 2020-02-26 17:41:45 +09:00
Bill Currie
5d302ff6f4 Fix incorrect usage of signed verbosity 2020-02-26 17:15:52 +09:00
Bill Currie
35c9d6ee38 Make pr_obcode.c mostly thread safe 
Its public data is all read-only, and once set up, its private data is
too (just don't call init in multiple threads).
 2020-02-26 01:20:28 +09:00
Bill Currie
66dd3ef070 Make a bunch of count things positive-only 
This fixes a pile of FIXMEs, because some things should never be
negative.
 2020-02-25 21:23:13 +09:00
Bill Currie
282132958f Relocate local def type encodings in debug load 
For technical reasons (programmer laziness), qfcc does not fix up local
def type encodings when writing the debug symbols file (type encoding
location not readily accessible).
 2020-02-25 20:46:01 +09:00
Bill Currie
89e83d7d73 Move the debug info out of progs_t 
The debug subsystem now uses the resources system to ensure it cleans
up, and its data is now semi-private. Unfortunately, PR_LoadDebug had to
remain public for qfprogs because using PR_RunLoadFuncs would cause
builtin resolution to complain.
 2020-02-25 20:07:29 +09:00
Bill Currie
256dee98a1 Make progs string resources management private 
Strangely enough, using the progs resources system. This is a step
towards having progs that can be reset properly, or even dynamically
created VMs.
 2020-02-25 00:23:08 +09:00
Bill Currie
1cfac0f11a Resolve local def type encodings 
They need to be resolved at load-time.
 2020-02-25 00:12:02 +09:00
Bill Currie
c51c9edd9d Fix incorrect encoding of local defs 2020-02-25 00:11:01 +09:00
Bill Currie
7406e0308e Fix some warnings picked up in an optimized build 2020-02-24 11:28:43 +09:00
Bill Currie
c43b9681eb Keep structure members aligned 2020-02-24 08:43:32 +09:00
Bill Currie
2adcad7c84 Allow non-short-circuited logic to work 2020-02-24 02:25:28 +09:00
Bill Currie
ac32bbca40 Improve code for short-circuited float logic 2020-02-24 02:14:44 +09:00
Bill Currie
9c26d12f95 Cast rather than alias for testing constants 
Fixes ICE in do { ... } while (1);
 2020-02-24 02:13:23 +09:00
Bill Currie
55e53211e2 Generate default type expressions for folded booleans 2020-02-24 02:11:31 +09:00
Bill Currie
d6752c254c Move short-circuit boolean code to its own file 2020-02-24 01:20:24 +09:00
Bill Currie
0bf7ec07b7 Make debug output verbosity 2 
and internal diagnostic sources level 1.
 2020-02-24 00:22:13 +09:00
Bill Currie
11365024d2 Fix writing of frames files when not requested 
I forgot to check for the option for separate compilation.
 2020-02-24 00:07:48 +09:00
Bill Currie
27ae5ccfce Fix ICE after incomplete type error 
Attempting to define a variable with an incomplete type is an error, and
results in a default size 1 of allocated, but I forgot to set default
alignment when implementing alignment.
 2020-02-24 00:07:39 +09:00
Bill Currie
f387b9aa47 Propagate implicit for negating double constants 2020-02-23 23:41:12 +09:00
Bill Currie
5374798ef9 Fix order of operations for implicit casts 2020-02-23 23:18:31 +09:00
Bill Currie
05f6ddbb13 Print promoted warnings as errors 
This makes it much easier to see why a compilation failed when only
warnings are visible.
 2020-02-23 23:10:56 +09:00
Bill Currie
526c27cf03 Handle implicit casts for double/float comparisons 2020-02-23 23:10:10 +09:00
Bill Currie
607fd2e30e Allow constant initialized globals in advanced code 
Use -C const-initializers to enable (or no-const-initializers to disable
in traditional/extended code).
 2020-02-23 22:51:00 +09:00
Bill Currie
e23aa40994 Implicitly cast unadorned floating point constants 
Floating point constants without f or d adornments will automatically
cast, without warnings, to the type appropriate to the rest of the
expression.
 2020-02-23 22:28:54 +09:00
Bill Currie
ea3af84baa Fix ICE when const-folding doubles 
I really need to rework that system.
 2020-02-23 20:49:56 +09:00
Bill Currie
2a39208069 Set void alignment to 1 
qcc allowed void variables.
 2020-02-23 20:48:43 +09:00
Bill Currie
c9fca9c98a Fix another inside-out type utility function 2020-02-23 20:48:12 +09:00
Bill Currie
4b7ecdf74a Make PR_Init take an instance to initialize 
This allows internal sub-systems to do per-instance initializations
without other engine systems having to know about them.
 2020-02-23 18:32:16 +09:00
Bill Currie
6009d1d023 Fix qfo strings dumping 2020-02-23 15:08:31 +09:00
Bill Currie
b0157e5095 Fix qfo field dumping 2020-02-23 14:56:50 +09:00
Bill Currie
81293d98dd Fix qfo line info dumping 
The addition of xdef data has made qfo_to_progs unusable in qfprogs,
resulting in various invalid memory accesses. It always was an ugly hack
anyway, so this is the first step to proper qfo support in qfprogs.
 2020-02-23 14:44:25 +09:00
Bill Currie
155a633ebe Include extended defs data in the size report 2020-02-23 11:53:57 +09:00
Bill Currie
6c6433dea5 Fetch the def name only once when scanning 
Not that speed is critical at this point, but it feels better.
 2020-02-23 11:52:35 +09:00
Bill Currie
3aabfa71d9 Find lost type encoding relocations 
I have no idea why I thought it was a good idea to delete those lines.
Yay for regression tests, though.
 2020-02-22 23:33:56 +09:00
Bill Currie
806af85447 Remove reference to ddef_t from progs.h 
This cleans up some horrible names and redundant fields that were a
result of the transition to pr_def_t
 2020-02-22 22:44:08 +09:00
Bill Currie
81083698a8 Move to using an in-memory form of ddef_t 
This allows the VM to work with extended ddefs transparently. It seems
to have uncovered a typedef alias relocation bug, though.
 2020-02-22 22:33:44 +09:00
Bill Currie
4df926e531 Write extended ddef information to progs far data 
I was originally going to put it in the debug syms file, but I realized
that the data persistence code would need access to both def type and
certainly correct def offsets for defs in far data.
 2020-02-22 14:11:15 +09:00
Bill Currie
e7b4eedc07 Fix segfault in dereferencing undefined field containers 2020-02-22 14:04:10 +09:00
Bill Currie
c296514b95 Make pr.load_file 'return' the file size 2020-02-21 21:17:28 +09:00
Bill Currie
caf78b5422 Rename ty_none to ty_basic 
This far better reflects the actual meaning. It is very likely that
ty_none is a holdover from long before there was full type encoding and
it meant that the union in qfcc's type_t had no data. This is still
true for basic types, but only if not a function, field or pointer type.
If the type was function, field or pointer, it was not true, so it was
misnamed pretty much from the start.
 2020-02-21 17:52:00 +09:00
Bill Currie
1b43046c8a Handle aliased types when building function calls 2020-02-19 21:41:46 +09:00
Bill Currie
fd2b7ee6f9 Use more type checking helper functions 2020-02-19 21:41:46 +09:00
Bill Currie
a6003ed08a Walk qfo alias chain for type size and alignment 
While the basic type is stored in the alias type record, it's no good
for size or alignment as it will give incorrect results for complex
types.
 2020-02-19 21:41:46 +09:00
Bill Currie
6a70d2e362 Give alias types a unique encoding 
The encoding is used as the def name and it needs to be different than
the alias target or the linker throws it away as an external def.
 2020-02-19 21:41:46 +09:00
Bill Currie
6bc803c72d Use correct encoding for alias types 
I got confused which field was which.
 2020-02-19 21:41:46 +09:00
Bill Currie
6bcc2c49ab Use helper functions for type checks 
They hide the evil details of aliased types. More to come :/
 2020-02-19 21:41:46 +09:00
Bill Currie
9610788dea Fix some more type aliasing issues 
Getting there... (I knew this would be a big job)
 2020-02-19 21:41:46 +09:00
Bill Currie
d50a27a045 Race down the alias chain before checking types 
This takes care of some of the type aliasing issues.
 2020-02-19 21:41:46 +09:00
Bill Currie
a5aba6c8ac Implement type aliasing 
The separate types are in the file, but there are multiple issues
 2020-02-19 21:41:46 +09:00
Bill Currie
2f18364364 Start work on encoding typedef chains 2020-02-19 21:41:46 +09:00
Bill Currie
b00c866c4e Allow casting between string and pointer types 2020-02-19 21:41:46 +09:00
Bill Currie
7a315b4a89 Fix storage class for for-loop declarations 
Getting "i redeclared" when i was declared in a for loop in two
different functions was a tad unexpected.
 2020-02-19 21:41:46 +09:00
Bill Currie
4c40928112 Remove what appears to be a redundant check 
It was long wrong anyway as it checked past the end of the function's
parameters, which caused a segfault when calling varargs functions with
no formal parameters.
 2020-02-19 02:53:38 +09:00
Bill Currie
a65d6bce09 Fix a warning that got through 
I forgot to compile test in optimized...
 2020-02-19 02:43:27 +09:00
Bill Currie
bd6dcafdc8 Replace system defines/includes with qfcc's 
Right now, it probably works only with modern gcc.
 2020-02-19 02:35:09 +09:00
Bill Currie
2d52da9c0d Fix segfault in unlimited params 2020-02-19 02:35:09 +09:00
Bill Currie
c61d0b6ff0 Allow unlimited parameters in function declarations 
However, definitions are still limited to 8 parameters. This allows
processing of C headers for type information.
 2020-02-19 02:35:09 +09:00
Bill Currie
ee228504aa Fix self-referenced enum declarations 
eg:
typedef enum foo {
    bar = 1,
    baz = bar,
} foo;
 2020-02-19 02:35:09 +09:00
Bill Currie
7a399c956b Encode function parameter alignment 
The encoding is 3:5 giving 3 bits for alignment (log2) and 5 bits for
size, with alignment in the 3 most significant bits. This keeps the
format backwards compatible as until doubles were added, all types were
aligned to 1 word which gets encoded as 0, and the size is unaffected.
 2020-02-16 17:10:43 +09:00
Bill Currie
1a9510834a Add a missed opcode conversion for %% 2020-02-16 12:10:09 +09:00
Bill Currie
9d2d33fa50 Implement %% (true modulo) support in qfcc 
However, it's not quite working yet
 2020-02-16 11:57:58 +09:00
Bill Currie
14acfad7c4 Fix incorrect placement of far data 
All the care in aligning things was undone by not updating the
calculations of the pointers.
 2020-02-15 23:49:12 +09:00
Bill Currie
1985b6d4fd Avoid creating a struct temp for ivar struct return 
This fixed the uninitialized temp warning in HUD.r. The problem was
caused by the flow analyzer not being able to detect that the struct
temp was being initialized by the move statement due to the address of
the temp being in a pointer temp. While it would be good to use a
constant pointer for the address of the struct temp or improving the
flow analyzer to track actual data, avoiding the temp in the first place
results in nicer code as it removes a move statement.
 2020-02-15 23:49:12 +09:00
Bill Currie
7bfa0f7a92 Allow pragmas to have arguments 
It does mean only one pragma per line, but that's not such a big deal.
 2020-02-15 23:49:12 +09:00
Bill Currie
91f5023681 Promote bugs to internal errors 
Mostly so I can catch them in test cases
 2020-02-15 23:49:12 +09:00
Bill Currie
6ce99afa5b Catch double demotion in global initializers 
Local initializers are handled by regular assignments
 2020-02-15 23:49:12 +09:00
Bill Currie
c5ce18591f Catch and warn demotion of double in assignments 2020-02-15 23:49:12 +09:00
Bill Currie
4bf37b274b Ensure double is not in zero or param structs for v6 2020-02-15 23:49:12 +09:00
Bill Currie
be30a0eb19 Fix missing alignment init on zero and param types 2020-02-15 23:49:12 +09:00
Bill Currie
3e651b43f8 Handle aliased values when emitting statements 
With this, cast address initializers work. I have to wonder if the alias
value short-circuit was legacy from long before the rewrite, as it was
quite trivial to handle in the back-end.
 2020-02-15 23:49:12 +09:00
Bill Currie
e4eb793fb3 Treat aliased values as constant 
One step closer to cast address initializers working.
 2020-02-15 23:49:12 +09:00
Bill Currie
ce9902baed Don't short-circuit aliased values 
Not sure why I thought it was a good idea as it turns out this is why
cast pointer initializers were being lost.
 2020-02-15 23:49:12 +09:00
Bill Currie
a4a57b6ffd Implement aligned allocations 2020-02-15 23:49:12 +09:00
Bill Currie
0542daacdf Create more double related tests 
Including catching warnings :) (yay -Werror)
 2020-02-15 23:49:12 +09:00
Bill Currie
7e09a94469 Fix "casts" between signed and unsigned int 2020-02-15 23:49:12 +09:00
Bill Currie
5d8d805b60 Fix test for single overload functions 
All functions are stored in the overload functions table, even those
that are never explicitly overloaded, but only explicitly overloaded
functions (those with @overload) use the type-qualified naming.
 2020-02-15 23:49:12 +09:00
Bill Currie
533fb8acc9 Implement double constants 2020-02-15 23:49:12 +09:00
Bill Currie
2cd62fe01b Fix several double-related bug 
float is promoted to double through ... for non-v6 code.
PR_Sprintf has custom param access via P_*, messed up doubles.
 2020-02-15 23:49:12 +09:00
Bill Currie
8920c59515 Find @override functions even when there's only one 2020-02-15 23:49:12 +09:00
Bill Currie
df7c08a010 Add support for doubles to Ruamoko 
Only as scalars, I still need to think about what to do for vectors and
quaternions due to param size issues. Also, doubles are not yet
guaranteed to be correctly aligned.
 2020-02-15 23:49:12 +09:00
Bill Currie
13b608f40c Don't truncat float % float 
This allows full usage, eg, x % pi, but otherwise maintains
compatibility with integer %
 2020-02-15 23:49:12 +09:00
Bill Currie
16f8dca72e Align local and far data spaces 
I plan on adding doubles, and so it's necessary to ensure that attempts
to align doubles in local or far data spaces remain aligned after final
linking.
 2020-02-15 23:49:12 +09:00
Bill Currie
197f856a30 Fix incorrect scalar/quaternion division 
It's just not possible.
 2020-02-15 23:49:12 +09:00
Bill Currie
a5ee58cebb Support 2d vector expressions 
[x, y] expands to [x, y, 0] (for now, might add a 2d vector type).
 2019-06-18 11:54:45 +09:00
Bill Currie
83fac13a0c Fix debug line numbers for vector expressions 2019-06-18 11:53:58 +09:00
Bill Currie
b37c331e76 Catch taking size of null type 
This should help catch similar errors in the future.
 2019-06-18 10:39:17 +09:00
Bill Currie
0f1f477e64 Set up temp aliases correctly 
Fixes vector expressions as sub-expresses. I really don't know why I did
the temp alias setup that way.
 2019-06-18 10:38:19 +09:00
Bill Currie
fc50376297 Fix a minor error check mistake 2019-06-18 08:54:18 +09:00
Bill Currie
fe73547f43 Update alias type sameness check 
This one seems to be fairly robust. Fixes alias being used to cast
pointers (maybe a better way, but this works for now).
 2019-06-18 08:53:05 +09:00
Bill Currie
f7825fe7cf Print types properly in pointer value expressions 2019-06-18 00:22:24 +09:00
Bill Currie
b996fb7aa4 Make operand->type actual type instead of low-level 
And clean up the resulting mess. This fixes struct copy, but uncovers
another bug :/
 2019-06-17 23:38:34 +09:00
Bill Currie
dd52b7fea1 Merge aliased alias expressions 
This comes up when accessing struct fields nested in another struct.
Fixes the nested struct fields test.
 2019-06-17 22:48:42 +09:00
Bill Currie
d6d3027411 Mark the correct operand as live 
This fixes vecexpr (and possibly other cases).
 2019-06-16 19:21:02 +09:00
Bill Currie
6e21c3ae2e Treat func statements similarly to flow statements 
func statements need their operands marked live like flow statements do
because usage is more indirect.
 2019-06-16 19:20:21 +09:00
Bill Currie
db4a7a139e Use the alias code when making vars live 
Not sure the live forcing flag is needed anymore (need to test).
 2019-06-16 19:17:45 +09:00
Bill Currie
2977c145d0 Clean up dag live alias code a little 
Mainly, this makes it possible to reuse the alias code.
 2019-06-16 19:17:01 +09:00
Bill Currie
82b334e919 Number dot dumps to help identify order 2019-06-16 19:12:18 +09:00
Bill Currie
c40f4194e9 Use tempop_visit_all for flow and dags 
Fixes t3 of vecexpr, but t2 is broken (lost first assignment).
 2019-06-16 16:56:39 +09:00
Bill Currie
3c4903245a Fix some curly space 2019-06-16 16:55:54 +09:00
Bill Currie
bc271d8a02 Add tempop_visit_all 
Works the same as def_visit_all, but for temp operands.
 2019-06-16 16:52:49 +09:00
Bill Currie
fa69aeef0f Improve handling of temp aliases 
This makes all tests pass when not optimizing. More work needs to be
done in dags.
 2019-06-12 00:37:02 +09:00
Bill Currie
b18a744288 Use offset alias expressions 
They are not quite working yet as the operand generator does not use the
offset yet.
 2019-06-10 23:55:16 +09:00
Bill Currie
cc27949a34 Ensure pointer values always have a type 
The dags generator was creating a pointer value with no type which
caused print_statement to segfault.
 2019-06-10 23:52:39 +09:00
Bill Currie
ee1f5f9478 Add support for binary alias expressions 
Doesn't quite work yet.
 2019-06-10 23:48:58 +09:00
Bill Currie
913b9f52e0 Add an offset alias expression 
This should make dealing with def elements (vector etc) easier.
 2019-06-10 18:13:28 +09:00
Bill Currie
efdfc7436f Move ev_types into types.[ch] 
No wonder I couldn't find it the other day...
 2019-06-10 18:04:25 +09:00
Bill Currie
08ab42fc15 Handle vector expressions as sub-expressions 
Now my little game builds again :)
 2019-06-10 15:50:35 +09:00
Bill Currie
49ed4310fd Fix assigning int to enum or enum to int 
Or float, for v6 progs.
 2019-06-10 08:46:40 +09:00
Bill Currie
83fb588727 Support vector/quaternion division by float 
Implemented via v*(1/f) or q*(1/f) to give CSE a chance to optimize the
division if necessary as otherwise the engine would have to divide every
time.
 2019-06-10 08:44:36 +09:00
Bill Currie
7dc1a0640a Delay creating actual enum symbols 
In order to keep enumerator type and enum type the same, the values need
to have their type set after the enum type is finalized, and then the
appropriate symbols created in the parent scope. This fixes the infinite
recursion when assigning an enum value to its own type.
 2019-06-10 07:44:23 +09:00
Bill Currie
ef4ad52239 Make binary_expr fold constants 
This is where constant folding should have happened all along. While
unary_expr should fold constants too, it seems to already try to do so
and it's a bit much of a mess to clean up right now.
 2019-06-10 00:36:13 +09:00
Bill Currie
bf0543f7fb Be paranoid about temp var sizes 
Prevents array index errors.
 2019-06-10 00:19:48 +09:00
Bill Currie
28a2b96800 Implement automatic array sizing from initializer 2019-06-09 23:11:38 +09:00
Bill Currie
00f12263ca Fix casting arrays to pointers 2019-06-09 22:55:38 +09:00
Bill Currie
3196bcc851 Allow fold_constants to handle some math identities 
Such as x*0 -> 0, x*1 -> x, x+0 ->x, etc.
 2019-06-09 22:34:23 +09:00
Bill Currie
c98d1ff08c Document some problems with nil 
While he's a pretty cool character in HZD, he seems to have some
identity problems when in a compiler.
 2019-06-09 22:29:51 +09:00
Bill Currie
439cd15620 Do type promotion for short 
fold_constants used to do this when it was overly aggressive. Fixes the
ICE when accessing an array in a struct via a pointer.
 2019-06-09 22:27:53 +09:00
Bill Currie
227ac46ffe Clean up array expression processing 
And make sure constants are folded since fold_constants is no longer
recursive.
 2019-06-09 22:25:55 +09:00
Bill Currie
6253623e9b Remove some weird dereference code 
It appears to have been an attempt at optimizing dereferences, but it
instead just utterly mangled them.
 2019-06-09 21:37:46 +09:00
Bill Currie
f49303e774 Emit code for address expressions 
It helps if the necessary code is actually emitted in the first place.
 2019-06-09 21:37:46 +09:00
Bill Currie
8cef85e5de Cast scalar types when necessary on assignment 
This fixes type promotion errors that broke some tests.
 2019-06-09 20:12:50 +09:00
Bill Currie
e849c2d1ce Mark block expr result as rvalue when used as one 
At least for return. There may be other cases that need it, but this
fixes comma-expr.r (minus int->float promotion issues).
 2019-06-09 19:29:21 +09:00
Bill Currie
d9c9686288 Make initialized globals non-constant 
This is for modern code. Traditional code still treats initialized
globals as constant and nosave. This will make a bit of a mess of
modern code that expects traditional behavior.
 2019-06-09 19:23:23 +09:00
Bill Currie
b7b6a89b91 Simplify fold_constants 
While this does break automatic type promotion, it does stop
fold_constants recursing through complex expressions: only the top level
expression needs to be folded, and then only if both sides are actually
constant.
 2019-06-09 19:20:35 +09:00
Bill Currie
2ee36e8b99 Rename qfot_type_t.ty to meta 
When I did up a ruamoko implementation of a type encoding dumper, I
named the field meta, which feels much better than ty.
 2019-06-09 18:10:07 +09:00
Bill Currie
7fce68649a Implement comma expressions 
Doesn't quite work (attempt to suppress warning for return a = 3, 5;
failed).
 2019-06-09 16:56:20 +09:00
Bill Currie
689d1ad3ec Remove some debug prints 2019-06-09 16:45:01 +09:00
Bill Currie
33c2eb430f Stop bison complaining about %expect 
And make sure warnings get fixed.
 2019-06-09 16:19:27 +09:00
Bill Currie
ec89149b29 Build for loop decl inits correctly 
The multiple expressions are chained together and evaluate in left to
right order.
 2019-06-09 13:54:03 +09:00
Bill Currie
5bd3c8c985 Allow variable declarations in for loops 
Matches C, C++ and C#
 2019-06-08 21:52:17 +09:00
Bill Currie
be4c3a82a2 Detect redefinitions of structs and unions 
While the redefinition was being detected, it was misreported as the tag
being wrong, and on the wrong line, too.
 2019-06-08 19:25:25 +09:00
Bill Currie
f2102187b9 Clean up emit_protocol_list 
Now it uses emit_structure, which will make it easier should things go
wrong.
 2019-06-08 19:23:49 +09:00
Bill Currie
6acbdcb3e5 Correct a typo 2019-06-08 19:23:10 +09:00
Bill Currie
e217bdd55f Assign vector expressions to a temp for return 
Rather than direct to .return, allowing return of vector expressions
with function calls without trashing the vector.
 2019-06-08 13:36:03 +09:00
Bill Currie
ebab6574b9 Allow taking the address of a temporary variable 2019-06-08 13:35:47 +09:00
Bill Currie
e27da9c7db Avoid folding constants in assign_expr 
This prevents fold_constants from complaining about attempts to take
the address of a vector.
 2019-06-08 13:31:30 +09:00
Bill Currie
398e1cf83a Use output file as base for dot files 
Ensures the output goes not go into the source directory when using a
separate build tree.
 2019-06-08 13:30:06 +09:00
Bill Currie
4ef4a7e955 Start work on simple names in symbol tables 
I don't remember what the goal was (stopped working on it eight months
ago), but some possibilities include:
 - better handling of nil (have trouble with assigning into struts)
 - automatic forward declarations ala C# and jai (I was watching vids
   about jai at the time)
 - something for pascal
 - simply that the default symbol type should not be var (in which case,
   goal accomplished)
 2019-06-06 07:01:44 +09:00
Bill Currie
7e31704ebe Be more informative for pass by value size errors 2019-06-06 06:46:38 +09:00
Bill Currie
a5da8da1dc Be more informative for symbol type internal errors 2019-06-06 06:45:48 +09:00
Bill Currie
d00a2ef82d Convert constant vector expressions in binary expressions 
Fixes not being able to compare with eg [1, 2, 3]
 2019-06-06 06:44:19 +09:00
Bill Currie
319ecfbbfa Create a usable dot for vector expressions 
It leaves a lot to be desired, but it beats "FIXME".
 2019-06-06 06:42:31 +09:00
Bill Currie
607ec3124e More dead code removal. 
I have no idea why this hung around. It appears to be old array/struct
initialization.
 2018-10-15 22:12:40 +09:00
Bill Currie
ff5c1cd4c2 Clean up redundant type parameter to initialize_def. 2018-10-15 22:11:20 +09:00
Bill Currie
1746ce3af5 Make int type name reflect its keyword. 
Makes qc error messages make more sense.
 2018-10-15 20:54:05 +09:00
Bill Currie
302934a1e4 Remove some dead code. 2018-10-15 20:52:46 +09:00
Bill Currie
6c53be928b Support returning vector expressions. 
Currently fails due to a scheduling problem when the vector expression
contains functions.
 2018-10-13 23:32:53 +09:00
Bill Currie
aaab18c9a7 Nuke a dead field. 
It looks like ex_temp_t.expr was never really used, and I have no idea
what I had intended (not surprising after ~17 years).
 2018-10-13 12:07:50 +09:00
Bill Currie
2f2edae43b Make error, warning and notice give compiler file/line too. 
But only when verbosity > 1 (-vv).
 2018-10-13 09:31:00 +09:00
Bill Currie
4828934e50 Fix a equality check typo. 
Fixes bad code generation when assigning to vector.x in a function with no
parameters and the vector is the first local var.
 2018-10-12 23:39:05 +09:00
Bill Currie
78e0a8dc52 Support assigning non-constant vector expressions. 2018-10-12 22:05:17 +09:00
Bill Currie
e03dfa29b4 Clean up the module .ctor construction a little. 2018-10-12 21:09:36 +09:00
Bill Currie
f56d25cda6 Don't double print messages. 2018-10-12 20:46:45 +09:00
Bill Currie
668896aa82 More diagnostic improvements. 2018-10-12 16:01:11 +09:00
Bill Currie
71b3d30aa1 Make the ice a little more informative. 2018-10-12 14:51:39 +09:00
Bill Currie
f58c2fef5a Switch QF's quaterions from wxyz to xyzw. 
After messing with SIMD stuff for a little, I think I now understand why
the industry went with xyzw instead of the mathematical wxyz. Anyway, this
will make for less pain in the future (assuming I got everything).
 2018-10-12 14:33:55 +09:00
Bill Currie
b7aa5bb8fe Fix an oops messing up edict size. 2018-10-12 14:33:26 +09:00
Bill Currie
f8606ebab8 Fix a object file segfault when spaces have no data. 
ie, don't attempt to copy memory from a null pointer (just copy the null
pointer).
 2018-10-12 14:00:34 +09:00
Bill Currie
3bd9f96b07 Make internal error messages a little more helpful. 
They now include the file and line of the compiler as well.
 2018-10-12 13:57:59 +09:00
Bill Currie
3656cb966c Fix some bison deprecation warnings. 2018-10-12 09:32:49 +09:00
Bill Currie
3bc664811e Fix lost error count tracking. 2018-10-11 22:03:14 +09:00
Bill Currie
a096babb1f Duplicate memory when creating a qfo from progs. 
Fixes some double-free bugs when linking after compiling.
 2018-10-11 21:37:01 +09:00
Bill Currie
82809eb856 Simplify the call to PR_LoadProgsFile. 
I've decided that setting pr.max_edicts and pr.zone_size as part of the
local progs initialization rather than in PR_LoadProgsFile makes more
sense. For one, it is unlikely for the limits to change every time progs is
reloaded. Also, they seem to be a property of the VM rather than the progs.
However, there is nothing stopping the caller from updating max_edicts and
zone_size every call.
 2018-10-11 10:06:48 +09:00
Bill Currie
673b45be05 Add diagnostic hooks. 2018-10-09 12:46:13 +09:00
Bill Currie
34bcf7faab Do a pure/const/noreturn/format attribute pass. 
I always wanted these, but as gcc now provides warnings for functions that
could do with such attributes, finding all the functions is much easier.
 2018-10-09 12:42:21 +09:00
Bill Currie
71569b45c9 Pre-format diagnostic messages. 
This will make it easier to hook diagnostics enabling unit tests.
 2018-09-09 18:09:32 +09:00
Bill Currie
113e0d82ba Fix a signed comparison error. 
Not sure how this fix got lost.
 2018-09-09 16:48:19 +09:00
Bill Currie
59e85b7d5e Fix a pile of dead assignments. 
Some were actual bugs!
 2018-09-08 22:23:57 +09:00
Bill Currie
59b04dbcca Make many qfo int fields unsigned. 
I don't remember why I thought signed was a good idea, but unsigned does
make more sense for most fields.
 2018-09-08 19:45:19 +09:00
Bill Currie
f75ff2d269 Fix some null argument issues. 2018-09-07 22:30:44 +09:00
Bill Currie
8f028b8a0d Fix some double frees. 2018-09-07 20:03:19 +09:00
Bill Currie
8fd5be0ee0 Fix a pile of sizeof goofs. 
While scan-build wasn't what I was looking for, it has proven useful
anyway: many of the sizeof errors were just noise, but a few were actual
bugs (allocating too much or too little memory).
 2018-09-07 20:00:57 +09:00
Bill Currie
2fcda44ab0 Kill dag leaf nodes on assignment. 
Fixes the failing swap test caused by a's original value being used (via t)
after being written.
 2018-08-23 20:07:22 +09:00
Bill Currie
cb366dd825 Better flow dot dump "scripting". 
Not sure I want to keep the statements in the live dump, but the system
is more flexible now.
 2018-08-23 20:07:11 +09:00
Bill Currie
cdbdf3f0eb Make print_operand global. 2018-08-23 20:05:16 +09:00
Bill Currie
0f279cd3f0 Add a comment about fake statement numbers. 
I had forgotten how they worked (not surprising after 6 years).
 2018-08-21 15:57:51 +09:00
Bill Currie
1b84ea747c Dump statements during flow analysis. 2018-08-21 15:56:39 +09:00
Bill Currie
5ba13d759b Fix a FIXME. 
Set of everything got added shortly after that FIXME was added, but I
forgot to fix it.
 2018-08-21 15:56:03 +09:00
Bill Currie
fbdf560a7a Rename print_extra_live to print_flow_vars. 2018-08-21 15:55:11 +09:00
Bill Currie
5dbb7b6d4d Handle all modelgen commands. 
Just in case someone ever adds models.qc to progs.src.
 2018-08-20 00:11:02 +09:00
Bill Currie
027e76b4c9 Add a doc block to parse_cpp_line. 
It took me too long to figure it out :P
 2018-08-20 00:09:20 +09:00
Bill Currie
b795beb520 Add support for \? to qc strings. 
And fix up the man page a bit.
 2018-08-19 19:31:52 +09:00
Bill Currie
0de0eb2fc7 Fix a bunch of bit-rot. 2018-06-08 13:21:30 +09:00
Bill Currie
2329fb1885 Fix some warnings and bitrot. 2016-10-25 00:10:30 +09:00
Bill Currie
932647bad3 Fix a segfault with switch on an undefined symbol. 
Forgot to check if the test expression was not an error.
 2016-01-10 13:41:49 +09:00
Bill Currie
bf40f0126e Convert vector expressions when passing parameters. 
Calling a function with [vector stuff] caused an ICE.
 2016-01-08 21:16:37 +09:00
Bill Currie
1061256c4f Add a missing expression type to dot_expr. 2016-01-08 21:15:47 +09:00
Bill Currie
431074d58f Update label destination when moving labels. 
This fixes a segfault when optimizing the empty-body test. The label was
getting moved, but the statement block to which it pointed was not updated
and thus it pointed to dead data.
 2016-01-07 21:24:29 +09:00
Bill Currie
d54ee6c8c3 Do not promote debug messages to warnings. 
I think I copied the notice code for debug and forgot to edit the
promotion. Oops.
 2016-01-07 20:08:07 +09:00
Bill Currie
2cd59c962c Rename qfcc's basename to file_basename. 
Avoids naming conflicts with JohnnyonFlame's toolchain.
 2014-01-31 12:22:11 +09:00
Bill Currie
f5501fbf24 Fix a pile of automake deprecation warnings. 
s/INCLUDES/AM_CPPFLAGS/g

I <3 sed :)
 2013-11-24 13:11:50 +09:00
Bill Currie
c88d1987a1 Add warnings for empty blocks in if/else/do. 
Saw a discussion of such in #qc and that gcc implemented it. I realized it
would be pretty easy to detect and very useful (I've made such mistakes at
times).
 2013-09-30 18:09:04 +09:00
Bill Currie
db460155e9 Fix multiple function calls in expressions. 2013-09-27 23:15:57 +09:00
Bill Currie
4bc40b3917 Rewrite binary_expr(). 
It is now in its own file and uses table lookups to check for valid type
and operator combinations, and also the resulting type of the expression.

This probably breaks multiple function calls in the one expression.
 2013-09-27 23:15:57 +09:00