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139 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
0ac1d0dd94 Add FuncEnvironment trait. 
This trait is used to provide the environment necessary to translate a
single WebAssembly function without having other global data structures
for the WebAssembly module.

The WasmRuntime trait extends the FuncEnvironment trait for those uses
that want to parse a whole WebAssembly module.

- Change the handling of WebAssembly globals to use the FuncEnvironment
  trait as well as the new GlobalVar infrastructure in Cretonne. The
  runtime is not consulted on the translation of each
  get_global/get_global instruction. Instead it gets to create the
  GlobalVar declaration in the function preamble the first time the
  global is used.

- Change the handling of heap load/store instructions to use the new
  Heap infrastructure in Cretonne. The runtime is called to create the
  Heap declaration in the preamble. It is not involved in individual
  load/store instructions.
 2017-09-05 16:17:52 -07:00
Jakob Stoklund Olesen
19c8ba5021 Eliminate the sig argument to translate_operator. 
The current function's return types are pushed as the first control
stack frame.
 2017-09-05 11:51:32 -07:00
Jakob Stoklund Olesen
2671cbb092 Add TranslationState::in_unreachable_code(). 
Move an unreachable code test and sanity check into this method.
 2017-09-05 11:46:08 -07:00
Jakob Stoklund Olesen
6f864f2926 Move translation state initialization into a method. 2017-09-05 11:00:40 -07:00
Dan Gohman
ef3ea72422 Avoid calling Vec::split_off, avoiding more heap allocations. 2017-09-05 09:23:20 -07:00
Jakob Stoklund Olesen
03939e4f9f Move TranslationState into its own module. 
Add some convenience methods for common state access patterns.
 2017-09-01 15:55:02 -07:00
Jakob Stoklund Olesen
6762194801 Move stack and control_stack into TranslationState. 
This reduces the number of function arguments passed around and it keeps
related information together.
 2017-09-01 14:29:35 -07:00
Dan Gohman
fe12fe0e63 Avoid unneeded calls to .as_slice(). 2017-09-01 12:15:14 -07:00
Dan Gohman
9d2fbdae62 Avoid cloning a jump argument vector to the heap. 2017-09-01 12:15:14 -07:00
Jakob Stoklund Olesen
9bc4264a33 Update dependency to wasmparser v0.8.2. 
Soon we'll need the BinaryReader::read_local_decl() method which was
added in that release.
 2017-09-01 09:31:39 -07:00
Dan Gohman
566c772e20 Eliminate more unnecessary calls to .iter(). 2017-08-31 17:03:12 -07:00
Dan Gohman
1d03244e90 Use debug_assert instead of assert in code where performance is important. 2017-08-31 16:36:18 -07:00
Dan Gohman
dc79d155ff Comment wording cleanups. 2017-08-31 12:47:05 -07:00
Dan Gohman
bc528917fd Avoid redundant '@ _' in match patterns. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#redundant_pattern
 2017-08-31 12:47:05 -07:00
Dan Gohman
a7d629c368 Use the Self keyword where applicable. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#use_self
 2017-08-31 12:47:05 -07:00
Dan Gohman
da2c2151b1 Fix trivial_numeric_casts errors. 2017-08-31 12:47:05 -07:00
Dan Gohman
9726bb7367 Avoid matching with reference patterns. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#match_ref_pats
 2017-08-31 12:47:05 -07:00
Dan Gohman
5a8d1a9fda Use if let instead of match. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#single_match
 2017-08-31 12:47:05 -07:00
Dan Gohman
574031e4d2 Avoid unneeded passing by value. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#needless_pass_by_value
 2017-08-31 12:47:05 -07:00
Dan Gohman
b6641ff443 Avoid clone() on a Copy type. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#clone_on_copy
 2017-08-31 12:47:05 -07:00
Dan Gohman
105998944e Avoid redundant borrows. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#needless_borrow
 2017-08-31 12:47:05 -07:00
Dan Gohman
9a8f01b832 Avoid unnecessary '&' in matches. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#match_ref_pats
 2017-08-31 12:47:05 -07:00
Dan Gohman
acf4f1009b Eliminate redundant uses of format!. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#useless_format
 2017-08-31 12:47:05 -07:00
Dan Gohman
adfdd77311 Avoid creating a reference to a reference. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#needless_borrow
 2017-08-31 12:47:05 -07:00
Dan Gohman
b411d01d6d Use [] instead of .get().unwrap(). 
https://github.com/rust-lang-nursery/rust-clippy/wiki#get_unwrap
 2017-08-31 12:47:05 -07:00
Dan Gohman
2efdc0ed37 Update rustfmt to 0.9.0. 2017-08-31 10:44:59 -07:00
Dan Gohman
a0a3401ef1 Don't special-case br_table with an empty table. 
Empty br_table tables are very uncommon (they're easy for wasm producers to
optimize away), so we don't need to special-case them.
 2017-08-30 15:05:00 -07:00
Dan Gohman
0cc8bd06cd Remove unnecessary () values. 2017-08-30 14:53:34 -07:00
Dan Gohman
8647b10135 Loop over references to containers instead of using explicit iteration methods. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#explicit_iter_loop
 2017-08-30 14:52:17 -07:00
Dan Gohman
03698f6bc8 Use slices rather than Vec borrows. 
https://github.com/rust-lang-nursery/rust-clippy/wiki#ptr_arg
 2017-08-30 14:48:17 -07:00
Dan Gohman
dcb65b59c1 Remove an unnecessary mut, fixing a compiler warning. 2017-08-30 09:10:08 -07:00
Dan Gohman
b2fcb1ad17 Change translate_module to use a slice rather than a borrowed Vec. 
This makes it more convenient to call from a cargo-fuzz fuzzer.
 2017-08-30 09:10:08 -07:00
Dan Gohman
5303e7708b Handle wasmparser errors gracefully. 2017-08-30 09:10:08 -07:00
Dan Gohman
c380df1d04 Eliminate a heap allocation. 2017-08-29 05:44:40 -07:00
Dan Gohman
4afa5df3b6 Remove the last_inst_return field. 
It's not necessary to explicitly track whether the last instruction is a
return; if the builder for the last block isn't filled by the time we reach
the end, it needs a return to fill it.
 2017-08-29 05:09:25 -07:00
Dan Gohman
ea1d053831 Simplify the "am I in unreachable code" predicate. 
The phantom unreachable stack is only used when the real unreachable stack is
active, so it's sufficient to check whether the real unreachable stack is empty.
 2017-08-29 03:36:38 -07:00
Dan Gohman
c71d4fc01b Remove a stale comment. 2017-08-29 03:30:22 -07:00
Dan Gohman
f905dc914b Enable missing_docs errors in the wasm crate. 
This adds `#![deny(missing_docs)]` to the wasm crate, and adds documentation
to several struct and enum fields, as needed.
 2017-08-28 17:07:28 -07:00
Denis Merigoux
ee9989c4b9 Dumped code from the wasm2cretonne repo. 
Integrated wasm test suite translation as cretonne test

Fixes #146.
Fixes #143.
 2017-08-28 15:57:43 -07:00