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
717b77dd0a
Instruction selection is so important the file needs a longer name.
2016-09-24 22:50:53 +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
...
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
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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
6643d39b2c
Fix some late-night typo bugs.
2016-09-24 01:09:32 +02:00
David Given
bb9aa030a5
Procedure compilation now happens after the entire EM file has been read in (so
...
that we can look inside data blocks which might be defined in the future...
sigh, csa and csb). csa and csb no longer generate invalid IR.
2016-09-24 01:04:00 +02:00
David Given
ed67d427c9
Replaced the block splicer with a trivial block eliminator (which rewrites
...
jumps to blocks which contain only a jump). Don't bother storing the bb graph
in the ir nodes; we can find it on demand by walking the tree instead ---
slower, but much easier to understand and more robust. Added a terrible map
library.
2016-09-23 23:59:15 +02:00
David Given
f8bbf9e87d
Each pass now lives in its own source file; much cleaner.
2016-09-23 21:07:16 +02:00
David Given
9077baa850
Add a bodged in algorithm for converting basic block communication from stacked
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variables to SSA. Also add dead block removal and block splicing. IR code is
much better now.
2016-09-22 23:19:29 +02:00
David Given
6a74cb2e11
Tracing cleanup. Simplified the IR code. Some more opcodes.
2016-09-22 00:15:48 +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
David Given
36d7d1ee4e
Create hacky fake basic blocks for data fragments, used to track which
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instruction labels descriptor blocks refer to; this allows csa and csb to know
where they're going.
2016-09-20 00:19:39 +02:00
David Given
dcba03646b
Treebuilder now gets to the bottom of my test file, merrily generating
...
(probably horribly broken) IR.
2016-09-19 23:30:41 +02:00
David Given
6ce2495aeb
Store the EM code up front and build the basic block graph *before*
...
generating the IR code. Lots more IR code.
2016-09-19 23:06:59 +02:00
David Given
176cd7365c
Archival checking of the half-written IR treebuilder.
2016-09-18 23:24:54 +02:00
David Given
f992eb28ac
ANSIise to fix warnings.
2016-09-18 00:23:42 +02:00
David Given
24380e2a93
Abstract out the EM reader; skeleton of the tree builder.
2016-09-18 00:02:16 +02:00
David Given
2eee391aef
Basic skeleton of em parser.
2016-09-17 22:21:47 +02:00
David Given
52ad82f8b9
Merge pull request #3 from kernigh/ego-fix
...
Fix bugs with memory allocation in ego.
2016-09-10 11:25:21 +02:00
George Koehler
b1d1b5e1f8
Fix bugs with memory allocation in ego.
...
cf/cf_loop.c and share/put.c tried to read the next pointer in an
element of a linked list after freeing the element. ud/ud_copy.c
tried to read beyond the end of the _defs_ array: it only has
_nrexpldefs_ elements, not _nrdefs_ elements.
These bugs caused core dumps on OpenBSD. Its malloc() put _defs_ near
the end of a page, so reading beyond the end crossed into an unmapped
page. Its free() wrote junk bytes and changed the next pointer to
0xdfdfdfdfdfdfdfdf.
2016-09-09 23:37:43 -04:00
David Given
8c94b1316c
Add unlink system call.
2016-09-04 19:23:02 +02:00
David Given
56e13e24e0
Cleanup some stray files.
2016-09-03 19:22:38 +02:00
David Given
1b8df04e58
Add modeline, fix formatting.
2016-09-03 19:17:09 +02:00
David Given
95ad06849b
Updated.
2016-09-03 19:07:12 +02:00
David Given
de2f99dc1a
More documentation.
2016-09-03 19:01:47 +02:00
David Given
ea4142daee
First half of the ackbuilder documentation.
2016-09-03 01:04:16 +02:00
David Given
ff9bf5b08a
Makefiles are now slightly less inaccurate. Does actually seem to do sensible
...
incremental builds now. I loathe make.
2016-09-03 00:20:11 +02:00
David Given
de7023dd61
Add an install target.
2016-09-02 23:03:57 +02:00
David Given
f67c98e239
Distributions are a pain --- let's not bother any more. Instead, we just tag
...
the repository and download a complete snapshot, old and ancient stuff and all.
2016-09-02 23:00:38 +02:00
David Given
612e38f1c6
Remove the old make-based build system, plus some big chunks of horribly
...
obsolete protomake build system.
2016-09-02 22:17:51 +02:00
David Given
96e7447bfa
Clean up the top level makefile.
2016-09-01 23:36:39 +02:00
David Given
2b6d251dec
Fix a fun bug where, every now again, ego would get its temporary files mangled
...
and generate invalid calls to the optimisers.
Previously ego would generate a temporary file template that looked like
/tmp/ego.A.BB.XXXXXX, call mktemp() on it to randomise the XXXXXX, and then
replace A and BB with data.
However, it used strrchr to find the A and B. Which would fine, except when
mktemp produced an A or a B in the randomised part...
This code was written on 4 March 1991. I was 16.
2016-08-22 23:53:01 +02:00
David Given
2a95b1c5e3
Forgot to check a file in.
2016-08-22 22:45:32 +02:00
David Given
5bae29a00c
ego now builds and is used.
...
This needed lots of refactoring to ego --- not all platforms have ego descr
files, and ego will just crash if you invoke it without one. I think originally
it was never intended that these platforms would be used at -O2 or above.
Plats now only specify the ego descr file if they have one.
2016-08-21 22:01:19 +02:00
David Given
08823a172c
filenamesof() an installable now returns all installed files, not just the ones
...
at the top level (necessary to make a lot of the dependency stuff work when
using tools which depend on installables).
2016-08-21 21:55:21 +02:00
David Given
84ee7c9cc4
Fix linking bug where em_decode would generate binary data instead of text.
2016-08-21 20:27:52 +02:00
David Given
2b2bd93e44
Run through clang-format.
2016-08-21 20:08:05 +02:00
David Given
44b6421519
Run through clang-format.
2016-08-21 19:53:14 +02:00
David Given
671bf250f5
Run through clang-format.
2016-08-21 19:46:19 +02:00
