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Fix n-body visualization

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dcodeIO 2018-07-22 02:55:46 +02:00
parent 813d2e33c8
commit a1e2071da6
15 changed files with 134 additions and 43 deletions
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6
README.md
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@ -70,10 +70,8 @@ Examples
* **[WASM parser](./lib/parse)**<br />
A WebAssembly binary parser in WebAssembly.
Benchmarks
---------
* **[n-body](./examples/n-body)**<br />
Compare performance and produced binary size with n-body example from Computer Language Benchmarks Game.
* **[N-body system](./examples/n-body)** [ [demo](https://rawgit.com/AssemblyScript/assemblyscript/master/examples/n-body/index.html) ]<br />
An implementation of the N-body system from the [Computer Language Benchmarks Game](https://benchmarksgame-team.pages.debian.net/benchmarksgame/).
Building
--------

2
dist/asc.js vendored
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1
dist/asc.js.map vendored
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2
dist/assemblyscript.js vendored
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dist/assemblyscript.js.map vendored
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2
examples/n-body/README.md
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@ -1,4 +1,4 @@
N-Body-System
N-body system
=============
An [AssemblyScript](http://assemblyscript.org) example. This is actually a benchmark - visualizing it just so happened.

5
examples/n-body/assembly/index.ts
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@ -203,3 +203,8 @@ export function step(): float {
export function bench(steps: u32): void {
for (let i: u32 = 0; i < steps; ++i) system.advance(0.01);
}
export function getBody(index: i32): Body | null {
var bodies = system.bodies;
return <u32>index < <u32>bodies.length ? bodies[index] : null;
}

16
examples/n-body/build/index.asm.js
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@ -477,6 +477,19 @@ function asmFunc(global, env, buffer) {
};
}
function assembly_index_getBody($0) {
$0 = $0 | 0;
var $1 = 0, $22 = 0, $20 = 0;
$1 = HEAPU32[assembly_index_system >> 2] | 0;
if ($0 >>> 0 < (HEAP32[($1 + 4 | 0) >> 2] | 0) >>> 0) {
$1 = HEAPU32[$1 >> 2] | 0;
if ($0 >>> 0 < ((HEAP32[$1 >> 2] | 0) >>> 2 | 0) >>> 0) $20 = HEAPU32[(($1 + ($0 << 2 | 0) | 0) + 8 | 0) >> 2] | 0; else abort();
$22 = $20;
} else $22 = 0;
$0 = $22;
return $0 | 0;
}
function start() {
$lib_allocator_arena_startOffset = 40;
$lib_allocator_arena_offset = $lib_allocator_arena_startOffset;
@ -521,6 +534,7 @@ function asmFunc(global, env, buffer) {
}),
init: assembly_index_init,
step: assembly_index_step,
bench: assembly_index_bench
bench: assembly_index_bench,
getBody: assembly_index_getBody
};
}

BIN
examples/n-body/build/optimized.wasm
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46
examples/n-body/build/optimized.wat
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@ -19,6 +19,7 @@
(export "init" (func $assembly/index/init))
(export "step" (func $assembly/index/step))
(export "bench" (func $assembly/index/bench))
(export "getBody" (func $assembly/index/getBody))
(start $start)
(func $~lib/allocator/arena/__memory_allocate (; 1 ;) (type $ii) (param $0 i32) (result i32)
(local $1 i32)
@ -1356,7 +1357,50 @@
)
)
)
(func $start (; 11 ;) (type $v)
(func $assembly/index/getBody (; 11 ;) (type $ii) (param $0 i32) (result i32)
(local $1 i32)
(tee_local $0
(if (result i32)
(i32.lt_u
(get_local $0)
(i32.load offset=4
(tee_local $1
(i32.load
(get_global $assembly/index/system)
)
)
)
)
(if (result i32)
(i32.lt_u
(get_local $0)
(i32.shr_u
(i32.load
(tee_local $1
(i32.load
(get_local $1)
)
)
)
(i32.const 2)
)
)
(i32.load offset=8
(i32.add
(get_local $1)
(i32.shl
(get_local $0)
(i32.const 2)
)
)
)
(unreachable)
)
(i32.const 0)
)
)
)
(func $start (; 12 ;) (type $v)
(set_global $~lib/allocator/arena/startOffset
(i32.const 40)
)

33
examples/n-body/build/untouched.wat
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@ -32,6 +32,7 @@
(export "init" (func $assembly/index/init))
(export "step" (func $assembly/index/step))
(export "bench" (func $assembly/index/bench))
(export "getBody" (func $assembly/index/getBody))
(start $start)
(func $~lib/allocator/arena/__memory_allocate (; 1 ;) (type $ii) (param $0 i32) (result i32)
(local $1 i32)
@ -2238,7 +2239,37 @@
)
)
)
(func $start (; 25 ;) (type $v)
(func $assembly/index/getBody (; 25 ;) (type $ii) (param $0 i32) (result i32)
(local $1 i32)
;;@ assembly/index.ts:208:2
(set_local $1
;;@ assembly/index.ts:208:15
(i32.load
(get_global $assembly/index/system)
)
)
;;@ assembly/index.ts:209:59
(if (result i32)
;;@ assembly/index.ts:209:9
(i32.lt_u
(get_local $0)
;;@ assembly/index.ts:209:22
(call $~lib/array/Array<Body>#get:length
;;@ assembly/index.ts:209:27
(get_local $1)
)
)
;;@ assembly/index.ts:209:43
(call $~lib/array/Array<Body>#__get
(get_local $1)
;;@ assembly/index.ts:209:50
(get_local $0)
)
;;@ assembly/index.ts:209:59
(i32.const 0)
)
)
(func $start (; 26 ;) (type $v)
(set_global $~lib/allocator/arena/startOffset
;;@ ~lib/allocator/arena.ts:12:25
(i32.and

5
examples/n-body/index.html
View File

@ -39,7 +39,10 @@ ctx.imageSmoothingEnabled = false;
fetch("build/optimized.wasm")
.then(response => response.arrayBuffer())
.then(buffer => WebAssembly.instantiate(buffer, {
env: { abort: function() {} }
env: {
memory: new WebAssembly.Memory({ initial: 1 }),
abort: function() { throw Error("abort called"); }
}
}))
.then(module => {
var exports = module.instance.exports;

30
std/assembly/collector/itcm.ts
View File

@ -35,21 +35,23 @@ var state = State.INIT;
var white = 0;
// From and to spaces
var from: ManagedObjectSet;
var to: ManagedObjectSet;
var from: ManagedObjectList;
var to: ManagedObjectList;
var iter: ManagedObject;
// ╒═══════════════ Managed object layout (32-bit) ════════════════╕
// 3 2 1
// 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 bits
// ├─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┼─┴─┴─┤ ┐
// │ next │ F │ ◄─┐ = nextWithFlags
// ├─────────────────────────────────────────────────────────┴─────┤ │ usize
// ├─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┴─┼─┼─┴─┤ ┐
// │ next │0│ C │ ◄─┐ = nextWithColor
// ├─────────────────────────────────────────────────────────┴─┴───┤ │ usize
// │ prev │ ◄─┘
// ╞═══════════════════════════════════════════════════════════════╡ SIZE ┘
// ├───────────────────────────────────────────────────────────────┤
// │ visitFn │
// ╞═══════════════════════════════════════════════════════════════╡ SIZE ┘ ◄─ user-space reference
// │ ... data ... │
// └───────────────────────────────────────────────────────────────┘
// F: flags
// C: color
/** Represents a managed object in memory, consisting of a header followed by the object's data. */
@unmanaged
@ -61,18 +63,18 @@ class ManagedObject {
/** Pointer to the previous object. */
prev: ManagedObject;
/** Visitor function called with the payload reference. */
/** Visitor function called with the user-space reference. */
visitFn: (ref: usize) => void;
/** Size of a managed object after alignment. */
static readonly SIZE: usize = (offsetof<ManagedObject>() + AL_MASK) & ~AL_MASK;
/** Gets the pointer to the next object in the list. */
/** Gets the pointer to the next object. */
get next(): ManagedObject {
return changetype<ManagedObject>(this.nextWithColor & ~3);
}
/** Sets the pointer to the next object in the list. */
/** Sets the pointer to the next object. */
set next(obj: ManagedObject) {
this.nextWithColor = changetype<usize>(obj) | (this.nextWithColor & 3);
}
@ -107,9 +109,9 @@ class ManagedObject {
}
}
/** A set of managed objects. Used for the from and to spaces. */
/** A list of managed objects. Used for the from and to spaces. */
@unmanaged
class ManagedObjectSet extends ManagedObject {
class ManagedObjectList extends ManagedObject {
/** Inserts an object. */
push(obj: ManagedObject): void {
@ -135,10 +137,10 @@ function step(): void {
switch (state) {
case State.INIT: {
if (TRACE) trace("gc~step/INIT");
from = changetype<ManagedObjectSet>(memory.allocate(ManagedObject.SIZE));
from = changetype<ManagedObjectList>(memory.allocate(ManagedObject.SIZE));
from.visitFn = changetype<(ref: usize) => void>(<u32>-1); // would error
from.clear();
to = changetype<ManagedObjectSet>(memory.allocate(ManagedObject.SIZE));
to = changetype<ManagedObjectList>(memory.allocate(ManagedObject.SIZE));
to.visitFn = changetype<(ref: usize) => void>(<u32>-1); // would error
to.clear();
iter = to;

14
tests/compiler/std/gc.optimized.wat
View File

@ -119,7 +119,7 @@
(get_local $0)
)
)
(func $~lib/collector/itcm/ManagedObjectSet#clear (; 4 ;) (type $iv) (param $0 i32)
(func $~lib/collector/itcm/ManagedObjectList#clear (; 4 ;) (type $iv) (param $0 i32)
(i32.store
(get_local $0)
(get_local $0)
@ -178,7 +178,7 @@
(get_local $1)
)
)
(func $~lib/collector/itcm/ManagedObjectSet#push (; 9 ;) (type $iiv) (param $0 i32) (param $1 i32)
(func $~lib/collector/itcm/ManagedObjectList#push (; 9 ;) (type $iiv) (param $0 i32) (param $1 i32)
(local $2 i32)
(set_local $2
(i32.load offset=4
@ -217,7 +217,7 @@
(call $~lib/collector/itcm/ManagedObject#unlink
(get_local $0)
)
(call $~lib/collector/itcm/ManagedObjectSet#push
(call $~lib/collector/itcm/ManagedObjectList#push
(get_global $~lib/collector/itcm/to)
(get_local $0)
)
@ -306,7 +306,7 @@
(get_global $~lib/collector/itcm/from)
(i32.const -1)
)
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/from)
)
(set_global $~lib/collector/itcm/to
@ -318,7 +318,7 @@
(get_global $~lib/collector/itcm/to)
(i32.const -1)
)
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/to)
)
(set_global $~lib/collector/itcm/iter
@ -426,7 +426,7 @@
)
)
(block
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/to)
)
(set_global $~lib/collector/itcm/state
@ -461,7 +461,7 @@
(get_local $2)
(get_global $~lib/collector/itcm/white)
)
(call $~lib/collector/itcm/ManagedObjectSet#push
(call $~lib/collector/itcm/ManagedObjectList#push
(get_global $~lib/collector/itcm/from)
(get_local $2)
)

14
tests/compiler/std/gc.untouched.wat
View File

@ -154,7 +154,7 @@
)
)
)
(func $~lib/collector/itcm/ManagedObjectSet#clear (; 4 ;) (type $iv) (param $0 i32)
(func $~lib/collector/itcm/ManagedObjectList#clear (; 4 ;) (type $iv) (param $0 i32)
(i32.store
(get_local $0)
(get_local $0)
@ -219,7 +219,7 @@
(get_local $1)
)
)
(func $~lib/collector/itcm/ManagedObjectSet#push (; 9 ;) (type $iiv) (param $0 i32) (param $1 i32)
(func $~lib/collector/itcm/ManagedObjectList#push (; 9 ;) (type $iiv) (param $0 i32) (param $1 i32)
(local $2 i32)
(set_local $2
(i32.load offset=4
@ -258,7 +258,7 @@
(call $~lib/collector/itcm/ManagedObject#unlink
(get_local $0)
)
(call $~lib/collector/itcm/ManagedObjectSet#push
(call $~lib/collector/itcm/ManagedObjectList#push
(get_global $~lib/collector/itcm/to)
(get_local $0)
)
@ -378,7 +378,7 @@
(get_global $~lib/collector/itcm/from)
(i32.const -1)
)
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/from)
)
(set_global $~lib/collector/itcm/to
@ -390,7 +390,7 @@
(get_global $~lib/collector/itcm/to)
(i32.const -1)
)
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/to)
)
(set_global $~lib/collector/itcm/iter
@ -511,7 +511,7 @@
)
)
(block
(call $~lib/collector/itcm/ManagedObjectSet#clear
(call $~lib/collector/itcm/ManagedObjectList#clear
(get_global $~lib/collector/itcm/to)
)
(set_global $~lib/collector/itcm/state
@ -552,7 +552,7 @@
(get_local $2)
(get_global $~lib/collector/itcm/white)
)
(call $~lib/collector/itcm/ManagedObjectSet#push
(call $~lib/collector/itcm/ManagedObjectList#push
(get_global $~lib/collector/itcm/from)
(get_local $2)
)