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Author SHA1 Message Date
Jakob Stoklund Olesen
aa6f5c0db3 Forests of B+ trees. 
Add new ordered set and map data structures based on B+-trees. These are
not general-purpose data structures like the BTreeSet and BTreeMap types
in the standard library. They are specialized for:

- Keys and values are small `Copy` types, optimized for 32-bit entities.
- Each set or map has a very small footprint, using only 32 bits of
  memory when empty.
- Keys are compared using a borrowed comparator object which can provide
  context for comparing tiny types that don't contain enough information
  to implement `Ord`.
- A whole forest of B-trees can be cleared in constant time without
  having to traverse the whole data structure.
 2017-11-17 07:21:19 -08:00
Jakob Stoklund Olesen
94921c0b74 Remove the dead B-Tree interface. 
We're starting over from scratch.
 2017-11-17 07:21:19 -08:00
Dan Gohman
bfa5a72b77 Use reserve_exact instead of reserve when the max size is known. 2017-11-16 15:16:23 -08:00
Dan Gohman
4d9aedbaca Add a 'clear()' function to Context. 
This includes adding `clear()` functions to its (transitive) members.
 2017-11-15 11:15:30 -08:00
Dan Gohman
4c829f7c7f Fix sphinx hyperlink syntax. 2017-11-14 14:09:35 -08:00
Dan Gohman
355e3e3c15 Remove redundant validation for function locals. 
Remove the MAX_LOCALS constraint, and the local type validation.
These are checked by whatever is performing proper validation.
 2017-11-13 14:34:35 -08:00
Dan Gohman
648c1b33ba Fix sphinx hyperlink syntax. 2017-11-13 14:05:47 -08:00
Dan Gohman
78f2edefc2 Add todos for add/sub with signed overflow, saturating fcvt_to_[su]int. 2017-11-11 17:45:09 -08:00
Dan Gohman
54e4ab71d9 Enable pager in cton-util. 2017-11-10 09:09:00 -08:00
Dan Gohman
8dd46054a5 In the verifier, clarify expected versus observed values. 2017-11-09 22:02:07 -08:00
Dan Gohman
ced7a88ecc Use consistent formatting for module-level comments. 2017-11-08 14:49:27 -08:00
Dan Gohman
e213c2654f Fix branch_destination/analyze_branch for BranchInt/BranchFloat. 2017-11-08 10:58:03 -08:00
Dan Gohman
889b06fd16 Replace as casts with type-conversion functions. 2017-11-08 10:48:44 -08:00
Dan Gohman
7c579a80c2 Avoid an unneeded .into_iter(). 2017-11-08 10:43:12 -08:00
Dan Gohman
d939bc5137 Use is_empty() instead of comparing len() with 0. 2017-11-08 10:43:12 -08:00
Dan Gohman
5d3ae0596c Avoid matching with reference patterns. 2017-11-08 10:43:12 -08:00
Dan Gohman
809e2f0c91 Avoid unneeded return keywords. 2017-11-08 10:43:12 -08:00
Dan Gohman
0d825b4643 Remove a redundant .into(). 2017-11-08 10:43:11 -08:00
Dan Gohman
3ab4349c1b Use Self instead of repeating the type name. 2017-11-08 10:43:11 -08:00
Dan Gohman
b7f979a8be Combine identical match arms. 2017-11-08 10:40:43 -08:00
Dan Gohman
388ebde41d Use .any(...) rather than .position(...).is_some(). 2017-11-08 10:40:42 -08:00
Dan Gohman
8b053aa923 Remove a trivial cast. 2017-11-08 10:40:39 -08:00
Dan Gohman
24e185c8c5 Remove unnecessary parens. 2017-11-08 10:40:37 -08:00
Dan Gohman
d7796cbf25 Suppress an unused-import warning on AsciiExt. 
See

https://users.rust-lang.org/t/psa-dealing-with-warning-unused-import-std-ascii-asciiext-in-today-s-nightly/13726

for details.
 2017-11-08 10:40:29 -08:00
Dan Gohman
2b6502ac6e Fix handling of CFG triangles in compute_postorder. 
For example, in `loops_one`, ebb3 is the bottom of a triangle, so
postorder should order it after the rest of the triangle.
 2017-11-07 16:57:22 -08:00
Dan Gohman
849f090562 Fix nondeterminism in br_table translation. 2017-11-07 15:33:35 -08:00
Dan Gohman
15aff899ee Block no longer needs to implement Hash. 2017-11-07 15:19:55 -08:00
Dan Gohman
6d91a32d39 Add comments about "user" parameters. 2017-11-07 15:13:46 -08:00
Dan Gohman
cbb99bf233 Rename "user_arg_count" to "user_param_count" for consistency. 2017-11-07 15:13:46 -08:00
Dan Gohman
9b15fe7dfd Simplify Ebb parameter creation. 
Ebb parameters are appended explicitly by whoever calls create_block,
so they don't need to also be inferred from branches. This makes the
frontend code more flexible for producers that want to create things
in a different order, and it eliminates more temporary allocations.

FunctionBuilder no longer maintains its own list of the function
parameter values; these can be obtained from the ebb parameter list
on the entry block.
 2017-11-07 15:13:00 -08:00
Dan Gohman
cce2384ede Remove switch_to_block's jump_args argument. 
switch_to_block doesn't need its jump_args argument, since jump
arguments are handled by the `jump` instruction and others, rather
than on the switch to a new ebb itself.
 2017-11-06 16:38:13 -08:00
Dan Gohman
f76640778c Fix printing with -p when -c is also given. 2017-11-06 16:28:15 -08:00
Dan Gohman
5dda19035d Implement Hash for ExternalName. 
This allows users to have HashMaps etc. with ExternalNames as keys.
 2017-11-06 11:34:09 -08:00
Dan Gohman
1d8df2ed1e Remove the requirement that Variable implement Default. 2017-11-06 11:10:14 -08:00
Dan Gohman
4091688cc0 Avoid unnecessary name qualification. 2017-11-06 11:10:03 -08:00
Dan Gohman
d9743290ea Elide elidable lifetime parameters. 2017-11-06 11:09:56 -08:00
Dan Gohman
8501cb798e Minor comment cleanups. 2017-11-03 16:43:29 -07:00
Dan Gohman
acc6d941a3 Combine redundant match arm bodies. 2017-11-03 16:40:51 -07:00
Dan Gohman
c7f01f88b2 Clarify some comments. 2017-11-03 11:44:58 -07:00
Dan Gohman
e21479a843 Mark check_return_args as #[cfg(debug_assertions)]. 2017-11-02 12:28:01 -07:00
Dan Gohman
1cbf921d9d Add a function to seal all the blocks at once. 2017-11-02 08:00:55 -07:00
Dan Gohman
c6d39dea5d Add a comment about shrink_to_fit(). 2017-11-01 11:35:15 -07:00
Dan Gohman
61a51f5275 Rename a variable to clarify its purpose. 2017-11-01 11:34:16 -07:00
Dan Gohman
57041ea9eb Tidy up semicolons. 2017-11-01 11:30:37 -07:00
Dan Gohman
39c0fbb6c7 Assert that sealed blocks cannot accept new predecessors. 2017-11-01 11:27:54 -07:00
Dan Gohman
1663f141c8 Tidy up unneeded parentheses. 2017-11-01 11:26:55 -07:00
Dan Gohman
aa724846f6 Clear the wasm operand stack at the end of a function. 
This preserves an invariant that the stack is empty between function
body translations.
 2017-11-01 11:25:22 -07:00
Dan Gohman
09b1bdc108 Make "cton-util compile" default to the isa specified in the test file. 2017-10-31 14:21:07 -07:00
Dan Gohman
5f8b1b9f04 Fix a flake8 lint. 2017-10-31 13:05:26 -07:00
Dan Gohman
3d83d0e4f0 Clean up redundant blank lines. 2017-10-31 12:45:22 -07:00