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Author SHA1 Message Date
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
a0914e1ec8 Fix the typedef test case to actually work 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
adb7f5d601 Quieten the test script build rules 2020-02-19 21:41:46 +09:00
Bill Currie
2db5d04e3f Reduce the ephemeral nature of str_mid 
When the substring is the tail of the supplied string, return a
"pointer" to within the supplied string rather than a new "return"
string. This means that tail-end substrings of string constants are
themselves constants.
 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
a6f3e1753a Fix ruamoko's hashtab_t typedef 
Being typedefed directly to a pointer is a holdover from when pointer
declarations were really awkward.
 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
67e183c8b6 Put the guts of qwaq's reflection code into ruamoko 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
ed283a9e7f Copy only the necessary number of vararg parameters 2020-02-16 18:00:29 +09:00
Bill Currie
12d2a0ff75 Copy the correct number of words for rcall 2020-02-16 17:58:36 +09:00
Bill Currie
f5741a979e Implement parameter alignment in the engine 
The engine now requires non-v6 progs to store the log2 alignment for the
param struct in .param_alignment.

PR_EnterFunction is clearer and possibly more efficient.
 2020-02-16 17:13:45 +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
1bc08c59f6 Add tests for %% 
double fails due to qfcc aligning double param locals, but the engine
not doing so.
 2020-02-16 17:02:38 +09:00
Bill Currie
1a9510834a Add a missed opcode conversion for %% 2020-02-16 12:10:09 +09:00
Bill Currie
32c21ec559 Make gcc accept the bitwise-boolean magic 
Forgot to compile check...
 2020-02-16 12:08:08 +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
b4fd804e4e Implement true modulo in the engine 2020-02-16 11:53:56 +09:00
Bill Currie
4269c8cb07 Rename the mod instruction to rem 
Because % really implements remainder rather than true modulo, and I
plan on adding %% to implement true modulo.
 2020-02-16 11:04:30 +09:00
Bill Currie
db9996023f Add some tests for double comparison 
More testing the engine than the compiler, but hey :)
 2020-02-15 23:49:12 +09:00
Bill Currie
bab3752e98 Add missed overridden math functions 
And fix misspelled ones too.
 2020-02-15 23:49:12 +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
9c996df7b4 Add a test case for the uninit temp in HUD.r 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
39df9c0c87 Fix some more double related warnings 
Fewer than I expected
 2020-02-15 23:49:12 +09:00
Bill Currie
344d429134 Test array initializer double demotions 
Turns out array inits are very strict about types (bug?).
 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
08ca59d0df Add tests for double demotion 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