Commit Graph

80 Commits

Author SHA1 Message Date
Jef
ab6b8e983a Add floats 2019-02-25 11:17:21 +01:00
Jef
830644e7d0 Remove printlns, make pushing stack arguments work properly 2019-02-19 15:44:04 +01:00
Jef
f1d9ccb9e8 Implement Microwasm 2019-02-19 14:51:30 +01:00
Jef
680a8ed585 Add select 2019-02-08 13:24:59 +01:00
Jef
7788e6cb6b Change wasmparser.rs upstream 2019-02-08 11:53:31 +01:00
Jef
7e5c3c567f Signature checking for call_indirect, integrate with wasmtime 2019-02-08 11:46:25 +01:00
Jef
2fad984a0d Shift and rotate 2019-01-30 11:06:32 +01:00
Jef
26cb8de303 Only generate a single trap to reduce code size and complexity in call_indirect 2019-01-18 16:59:29 +01:00
Jef
2c8efa32b8 Unnecessarily optimise asm_println 2019-01-18 14:03:23 +01:00
Jef
c7956dbdb2 Fail if we try to call past the end of the table 2019-01-18 14:01:12 +01:00
Jef
b6e29a899e Add todo comments 2019-01-18 13:07:41 +01:00
Jef
b23e00893c Fix saving volatile registers now that we use unused args as scratch 2019-01-18 13:04:53 +01:00
Jef
e57cec3b3f Do call_indirect properly, by accessing the table section 2019-01-18 13:01:42 +01:00
Jef
d06be92a4e Don't allocate context if it's unused 2019-01-17 14:34:34 +01:00
Jef
e0f032a0e5 clz/ctz/popcnt 2019-01-17 13:51:18 +01:00
Jef
74d168ec4b Merge ends, store locals in registers where possible 2019-01-17 11:07:51 +01:00
Jef
a7fa7da7d4 Support a proper vmctx that contains more than just memory offset 2019-01-16 16:34:24 +01:00
Jef
d7434fe5d2 Have vmctx be the first argument so we (almost) never have to shuffle it around 2019-01-16 09:33:46 +01:00
Jef
b86d11e4ad Avoid unnecessary work when passing arguments on 2019-01-15 17:24:30 +01:00
Jef
62fe065e85 Fix miscompilation for maliciously-crafted use of locals 2019-01-15 14:00:43 +01:00
Jef
45b2a5dae2 Merge remote-tracking branch 'forked/master' into loops 2019-01-15 12:59:55 +01:00
Jef
1b6952bb99 Implement vmctx as a hidden argument for cranelift compat 2019-01-15 12:27:55 +01:00
Jef
8312730377 Make calling functions safe 2019-01-14 18:45:14 +01:00
Jef
1eebc65c9e First baby steps to supporting memory accesses
Currently we don't actually sandbox the memory at all, so you can do evil things
like read and write the host's memory. We also don't support growing memory or
cranelift-compatible ABI that passes the memory offset as an argument.

We also always immediately allocate the buffer when encountering a memory section,
there is preliminary support for translating a buffer which can then have the real
offset replaced using relocations (and returning a different type when doing so)
but I haven't written the code that actually does relocation so it doesn't work yet.
2019-01-11 15:20:32 +01:00
Jef
ddb4c0fd19 x64 sign-extends imm32 arguments, so don't truncate them in an unsigned way 2019-01-08 11:10:59 +01:00
Jef
010f2d8569 Fix comparisons, add more tests for binops 2019-01-08 09:45:39 +01:00
Jef
fcd18746a7 Add 64-bit operations 2019-01-07 19:17:29 +01:00
Jef
5eee15ab02 Remove outdated comment 2018-12-19 20:27:16 +00:00
Jef
522818e7d8 Fix compiler bomb 2018-12-19 17:52:26 +00:00
Jef
9decdca525 Add Return 2018-12-19 16:39:20 +00:00
Jef
c52cf1493a Reformat a comment 2018-12-19 14:46:32 +01:00
Jef
f91b9072de Fix some issues with the use of stack depth 2018-12-19 14:42:00 +01:00
Jef
3b5c11a92a Test comparison operators 2018-12-19 12:58:08 +01:00
Jef
2173f4bcca Add other comparison operators, fix materialising locals, add more TODO comments (v. important) 2018-12-19 12:42:35 +01:00
Jef
cbf34a455b Add factorial tests from spec (after fixing them slightly) 2018-12-19 10:40:31 +01:00
Jef
72855e48c7 Improve behaviour when adding literal to non-literal, materialise local if its value will be changed
Currently the implementation of materializing locals causes compilation to be non-linear in degenerate cases
2018-12-18 19:15:29 +01:00
Jef
5418241dc6 Allow blocks to return values in any register 2018-12-18 17:16:38 +01:00
Jef
74ffb8560c Fix use of locals 2018-12-18 12:12:17 +01:00
Jef
0d1c4f3290 Allow calling functions with any signature 2018-12-17 21:55:03 -08:00
Jef
53841cdb07 Add loops 2018-12-17 12:50:29 +01:00
Jef
23b5a56a7d Fix locals not being restored properly (which may cause us to read garbage values from the stack) 2018-12-17 12:16:40 +01:00
Jef
bd2ee53c89 Optimize pop_i32_into, check more fib values 2018-12-15 16:39:38 +01:00
Sergey Pepyakin
5511f92088 Add call alignment requirement. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
23476e82ff Fix typo. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
aab191b460 Comment FuncDef. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
94e2f0c2a5 Add the fib test. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
d6b300c87f Implement returns. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
38590cbcb9 Add i32 literals support. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
a3719e08e5 Pass arguments. 2018-12-14 12:07:50 -05:00
Sergey Pepyakin
eb60c2587a Basic form of a function call 2018-12-14 12:07:50 -05:00