David Given
21898f784a
We're going to need some type inference after all, I think. Let's do a little
...
for now and see how it goes.
2016-10-01 19:10:22 +02:00
David Given
91e277e046
Predicates work; we now have prefers and requires clauses. Predicates must be
...
functions. Not convinced that semantic types are actually working --- there are
still problems with earlier statements leaving things in the wrong registers.
2016-10-01 13:56:52 +02:00
David Given
4a3a9a98dc
It doesn't really make a lot of sense to have BURG nonterminal names different
...
to register classes, so combine them. Refactor the map code.
2016-10-01 12:17:14 +02:00
David Given
3a973a19f3
Move fatal(), warning() and aprintf() into the new data module (because they're
...
really useful).
2016-09-30 19:10:30 +02:00
David Given
b32883b013
More properly keep track of register classes.
2016-09-29 22:32:43 +02:00
David Given
b27758b7de
Error check fragment rules which don't emit anything.
2016-09-29 22:14:11 +02:00
David Given
0d246c0d73
Much better handling of fragments (no run-time code needed to distinguish them
...
from registers) and better handling of individual hops within a paragraph ---
no more ghastly hacks to try and distinguish the input from the output.
2016-09-29 22:06:04 +02:00
David Given
a0131fdb47
You know what, the type inference stuff is a complete red herring. What this
...
actually needs is a more intelligent register allocator. So, remove the type
inference.
2016-09-29 19:58:02 +02:00
David Given
cc176e5183
Keep more data around about ir instructions. Implement a half-baked type
...
inference routine to propagate information about floats up the tree, so we know
whether to put floats into special registers as early as possible.
2016-09-26 22:12:46 +02:00
David Given
416b13fd76
Start factoring out the hardware op code.
2016-09-25 23:29:59 +02:00
David Given
39aa672422
Sort of keep track of registers and register classes. Start walking the
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generated instruction tree --- holy cow, they look like instructions!
2016-09-25 22:17:14 +02:00
David Given
bde5792b1a
Collapse several rule arrays into one; actually generate the array properly.
2016-09-25 17:14:54 +02:00
David Given
bcc74ba18d
Stupid stringlist is stupid. Use a proper data structure, properly abstracted
...
out (so other things can use it).
2016-09-25 12:18:39 +02:00
David Given
9f78e0b36b
Rethink the way patterns are mapped to rules; generate emitters (probably
...
badly).
2016-09-25 11:49:51 +02:00
David Given
7c028bdd45
We now record the code fragments to be emitted by each rule.
2016-09-25 00:21:46 +02:00
David Given
629e0ddfc6
Some instruction selection is now happening.
2016-09-24 22:46:08 +02:00
David Given
c8fcbe282a
More grammar changes.
2016-09-24 19:03:55 +02:00
David Given
2acc4ed29d
IR codes are now owned by mcgg; ir terminals are inserted into the table during
...
compilation (so you can refer to them).
2016-09-24 18:31:35 +02:00
David Given
1516657907
Crudely bolt on mcgg to mcg itself.
2016-09-24 17:20:40 +02:00
David Given
13132128a1
Parameters are parsed with getopt. Simplify, constify.
2016-09-24 16:59:49 +02:00
David Given
434eafd35d
Change the predicate stuff to use costs instead; now you can use when clauses
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on leaves. Remove an iburg premature optimisation (required for above).
2016-09-24 13:33:59 +02:00
David Given
d96ceea08a
Lots of exploratory new grammar for instruction definitions and string and
...
fragment emission (none of which is hooked up to anything yet).
2016-09-24 13:08:17 +02:00
David Given
960259f0b0
Add support for labelled tree nodes.
2016-09-24 12:11:30 +02:00
David Given
4546dd5f22
Massive grammar overhaul and refactor. Hacked in support for predicates, where
...
instructions can be turned on and off based on their parameters. New lexer
using a lexer. Now quite a lot of the way towards being a real instruction
selector.
2016-09-21 00:43:10 +02:00
David Given
2183c6c622
Run through clang-format.
2016-09-20 21:00:16 +02:00
David Given
03b7202e54
Strip out surplus files. Rewrite README.
2016-09-20 20:46:45 +02:00
David Given
5cb3fbb3d3
Import iburg.
2016-09-20 20:44:51 +02:00
David Given
13c117d15d
Import iburg.
2016-09-20 20:37:16 +02:00
