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3360 commits

Author SHA1 Message Date
Bill Currie
4e4d1b99b4 Clean up all the system shutdown calls 
I added Sys_RegisterShutdown years ago and never really did anything
with it: now any system that needs to be shutdown can ensure it gets
shutdown on program exit, and in the correct order (ie, reverse to init
order).
 2019-07-12 23:15:26 +09:00
Bill Currie
c3fa78ef4d Include test for 2d vector expressions 2019-07-06 14:49:28 +09:00
Bill Currie
8caf2eb584 Mark some new functions as pure 2019-06-27 21:37:48 +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
e0c8285f07 Extend nested struct test to cover struct copy 
Fails :P
 2019-06-17 22:57:40 +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
e9c24dbf1c Test case for accessing nested struct fields 
Currently fails.
 2019-06-17 22:47:44 +09:00
Bill Currie
ec128ffeee Leave a FIXME for daglabel_t.live 2019-06-16 19:24:19 +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
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