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58 commits

Author SHA1 Message Date
Bill Currie
55e53211e2 Generate default type expressions for folded booleans 2020-02-24 02:11:31 +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
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
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
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
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
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
6eb6b6c0ba Change pointer_t to unsigned and clean up the mess. 
It doesn't make sense to have negative pointers. The size of the commit is
from enabling gcc's -Wtype-limits warning and cleaning up that mess too.
 2012-12-21 21:53:13 +09:00
Bill Currie
461572e6ad Fix constant folding for vectors and quaternions with floats. 2012-12-14 12:48:09 +09:00
Bill Currie
732d6a1520 Provide emulation for vector / float and quaternion / float. 
The VM doesn't have such instructions, so emulate them via
vector * (1 / float) and quaternion * (1 / float).
 2012-12-14 12:30:30 +09:00
Bill Currie
f358364ef2 Fix assignment of nil to a structure. 
constfold.c seems to be getting a little long in the tooth :P
 2012-12-11 11:53:01 +09:00
Bill Currie
28ce35f1c1 Make values independent objects. 
values are now uniquely allocated (for the current object file). With
this, constants in dags will work.
 2012-11-15 13:44:06 +09:00
Bill Currie
f18a4d3c4a Support pointer - pointer. 2012-11-15 13:38:57 +09:00
Bill Currie
9095e1eabc Rework build_switch to use initialize_def. 
This required support for label reference expressions, whose purpose is to
represent the address of a label.
 2012-11-09 12:22:34 +09:00
Bill Currie
48fe9f729d Add partial support for pointer arithmetic. 
Only pointer +/- integral is supported. pointer - pointer will come later.
 2012-11-09 12:21:45 +09:00
Bill Currie
1dd5cccda2 Correct some more error messages. 2012-05-06 18:52:05 +09:00
Bill Currie
a0788c6cdf Implement constant folding for unary operators. 
Including conversions between float and int :)
 2012-05-06 18:49:07 +09:00
Bill Currie
e06ee34287 Allow quat * vec in ruamoko. 2012-04-26 12:00:27 +09:00
Bill Currie
bc1b483525 Nuke the rcsid stuff. 
It's pretty useless in git.
 2012-04-22 10:56:32 +09:00
Bill Currie
55cc0f9206 Bring back the unsigned type (PROGS version bump) 
This is only low-level support (the unsigned keyword still does not work),
but sufficient to make switch statements using jump tables work.
 2011-04-09 10:07:47 +09:00
Bill Currie
01144d23cf Add a new gcc warning option and fix the two bugs it found. 2011-03-17 19:58:56 +09:00
Bill Currie
39278ba8cc Explicitly select between direct and indirect moves. 2011-03-09 10:30:57 +09:00
Bill Currie
041c5d53b8 Check for the vector being a constant before trying to get its value. 2011-03-07 14:04:36 +09:00
Bill Currie
848994323e Support enums in expressions that support scalar types. 2011-03-03 10:36:43 +09:00
Bill Currie
6fa5bbe473 Support constant folding on enums. 2011-02-07 11:31:23 +09:00
Bill Currie
c53001800a Create a struct for representing specifiers. 
The specifiers are yet to come (next few commits), but this will be
necessary when they do.
 2011-02-01 21:15:51 +09:00
Bill Currie
0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +09:00
Bill Currie
d618e51dc8 Move save_string and make_string into strpool 
Might not be the perfect place, but at least they're strongly related.
 2011-01-24 21:32:48 +09:00
Bill Currie
d5f669af7a Nuke temp reference counting. 
The whole reason for this crazy developement branch :)
 2011-01-22 11:40:53 +09:00
Bill Currie
52b561f7cb Nuke bind expressions. 
Since I'm planning on implementing CSE and other optimizations, they're
rather redundant (and I'm having trouble getting them to work).
 2011-01-21 19:07:58 +09:00
Bill Currie
f8cc347dce Print expressions as dot files. 
While the resulting images can be a little confusing, they're much easier
to read than my cryptic postfix notation.
 2011-01-20 15:23:19 +09:00
Bill Currie
5deda9c9b9 Clean out ex_def as ex_symbol replaces it. 2011-01-19 22:25:04 +09:00
Bill Currie
e08efe036b Move the constant expression values into their own struct. 2011-01-19 08:43:24 +09:00
Bill Currie
d3a98af783 Make internal_error globally available. 2011-01-17 22:34:41 +09:00
Bill Currie
c73ac30e3f Turns out decrementing the users was very very bad. 2011-01-11 10:56:36 +09:00
Bill Currie
4af5dad424 More math identities. 
I forgot about 0 for multiplication and division. Detects division by zero.
 2011-01-11 08:49:43 +09:00
Bill Currie
5b43fc1de3 Improve interaction between temps and const_folding. 
Unfortunately, this seems to overdo the decrementing, so it could be
dangerous, but the ruamoko directory builds properly.
 2011-01-11 08:47:52 +09:00
Bill Currie
5f70e27613 Quaternions use quaternion_val, not vector_val :P 2011-01-10 13:23:12 +09:00
Bill Currie
ba27db6b93 Use some math identities to eliminate operations on non-constants. 2011-01-10 12:25:31 +09:00
Bill Currie
75ec6bf244 Clean out some unnecessary types from the progs engine and clean up the mess. 
This is a nasty commit, sorry, but 99% of the commit is interdependent.
 2011-01-10 12:25:31 +09:00
Bill Currie
2c84ae4898 Don't let casting in constfold increment users. 
This fixes Deek's temp notice. No new notices have shown up, so this should
be the correct fix. The constant folding code no longer calls cast_expr
directly, but rather uses an internal wrapper that decrements users after
cast_expr increments it, resulting in a no-op.
 2010-12-12 15:37:26 +09:00
Bill Currie
40fefff847 fix incorrect users for temps resulting from casting the result of ?: 
There are probably other situations, but I'll fix them as they show up.
 2010-01-13 06:25:06 +00:00
Bill Currie
0bd92e439a fix an interal error caused by losing the error state 2006-12-16 11:45:47 +00:00
Bill Currie
3fb03fc2be hah, should have been using __attribute__((used)) all that time (rather 
than __attribute__((unused))). fixes the missing console in -x11
 2005-08-04 15:27:09 +00:00
Bill Currie
9f662787e0 get struct copy to/from struct fields via pointers. fixes a bug found by 
snax
 2005-06-09 10:34:03 +00:00
Bill Currie
634dcbba95 forgot to allow struct move (for struct assigment) 
This is an imperfect revision of history.
 2004-11-11 22:41:00 +00:00
Bill Currie
a97f74a6ac that particular error case is a type mismatch rather than an internal error. found when trying to compare a SEL with a string... oops :) 
This is an imperfect revision of history.
 2004-11-11 00:20:00 +00:00
Bill Currie
4882005a49 compile fixes (oops) and start working on quaternion support in qfcc 2004-04-08 02:33:20 +00:00