Commit graph

513 commits

Author SHA1 Message Date
Bill Currie
8a4de6fea6 [qfcc] Fix segmentation fault for parameter errors 2020-03-02 22:38:12 +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
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
b4aebc120e [qfcc] Treat { } as nil for initializing compound types 2020-02-27 20:30:39 +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
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
d6752c254c Move short-circuit boolean code to its own file 2020-02-24 01:20:24 +09:00
Bill Currie
f387b9aa47 Propagate implicit for negating double constants 2020-02-23 23:41:12 +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
ea3af84baa Fix ICE when const-folding doubles
I really need to rework that system.
2020-02-23 20:49:56 +09:00
Bill Currie
e7b4eedc07 Fix segfault in dereferencing undefined field containers 2020-02-22 14:04:10 +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
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
b00c866c4e Allow casting between string and pointer types 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
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
7e09a94469 Fix "casts" between signed and unsigned int 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
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
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
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
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
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
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
00f12263ca Fix casting arrays to pointers 2019-06-09 22:55:38 +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
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
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
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
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
ff5c1cd4c2 Clean up redundant type parameter to initialize_def. 2018-10-15 22:11:20 +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
78e0a8dc52 Support assigning non-constant vector expressions. 2018-10-12 22:05:17 +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
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
59e85b7d5e Fix a pile of dead assignments.
Some were actual bugs!
2018-09-08 22:23:57 +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
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
Bill Currie
3295370328 Expose and use field_expr().
This may cause problems later on, but it is needed for the binary_expr()
cleanup.
2013-09-27 23:15:57 +09:00