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2386 commits

Author SHA1 Message Date
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
f81484a068 Test compiling enums 
It turns out the enumerator type and enum type wind up with different
instances of the same type (due to the way type chaining works). This
results in infinite recursion in assign_expr and check_types_compatible.
 2019-06-10 07:17:41 +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
f70801fa52 Add a test for accessing an array in a struct 
That's accessed via a pointer. Whee. However, at this stage, the problem
is really a promotion issue for short -> integer.
 2019-06-09 21:44:58 +09:00
Bill Currie
e46a44d9c6 Update TODO 2019-06-09 21:37:46 +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
f093516962 Move qfo type encoding structs 
This makes them available to the gamecode VM, and thus the debugger.
 2019-06-09 18:07:58 +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
1db600548e Fix for decl test scope issue 2019-06-09 13:55:07 +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
d29ea55826 Add a test for for loop declarations 
I think the compiler segfaulting indicates a test failure.
 2019-06-09 13:02:36 +09:00
Bill Currie
625e767684 Update qf dependency stuff for recent automake 
Not sure just what version of automake broke things, but I do remember
having a bad time getting the dependencies to work in the first place.
At least now they should be more reliable (until automake changes
things).
 2019-06-09 13:00:55 +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
df0316bb13 Clean up some comment FIXMEs 2019-06-08 19:22:29 +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
3327127e36 Fix a typo in a comment 2019-06-08 13:28:29 +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
2a2754e581 More ways to break qfcc :/ 2018-10-15 19:48:19 +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
d95c01be1a More defspace tests. 2018-10-09 12:45:26 +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
05fd2d8cdd Start work on a unit test for defspace. 2018-09-09 22:37:09 +09:00
Bill Currie
3a4667318c Fix the qfcc test autodependencies. 2018-09-09 22:36:20 +09:00
Bill Currie
d1cb15664f Fix some spelling issues in a comment. 2018-09-09 22:34:24 +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
b37b0180cb Actually do a test for triangle.r. 
If the kahan triangle area method breaks, I did something wrong with qfcc's
handling of parentheses (ie, floating point math is not truly associative).
 2018-08-23 20:52:32 +09:00
Bill Currie
1b9149ef31 Fix an argument passing error in test-harness. 
It failed to pass the last argument to the ruamoko program being run.
 2018-08-23 20:22:29 +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
8b8b42bde2 Fix a typo in a comment. 2018-08-23 20:04:51 +09:00
Bill Currie
f250065003 Add tests for swapping vars and triangle area. 
Triangle area was meant just to check Kahan's equation, but it found a
problem with swapping vars. swap.r currently fails.
 2018-08-21 16:27:22 +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