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Rename memory instructions; Rework constant handling (#177)

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* Rename memory instructions as proposed by the bulk-memory-operations spec.
* Rename memory manager functions to memory.* as well
* Remove automatic inlining of constant globals (Binaryen does this now)
* Improve 'const' enum compatibility
* Improve module-level export generation
* Enable the inline decorator for constant variables
* Add ERROR, WARNING and INFO macros that emit a user-defined diagnostic
* Reintroduce builtin decorator so these can appear anywhere in stdlib again
* Inline isNaN and isFinite by default
* Make an interface around gc.* similar to memory.*
* Emit an error when trying to inline a mutable variable
* Slim down CI stages
* Add a more convenient tracing utility for debugging
* Implement some prequesites for an eventual bundled GC
This commit is contained in:
Daniel Wirtz
2018-07-20 22:53:33 +02:00
committed by GitHub
parent 34e8facfdc
commit 39b489bee2
196 changed files with 28714 additions and 6674 deletions
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25
std/assembly/allocator/tlsf.ts
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@ -433,19 +433,18 @@ function fls<T>(word: T): T {
/** Reference to the initialized {@link Root} structure, once initialized. */
var ROOT: Root = changetype<Root>(0);
// External interface
// Memory allocator interface
/** Allocates a chunk of memory. */
@global
export function allocate_memory(size: usize): usize {
@global export function __memory_allocate(size: usize): usize {
// initialize if necessary
var root = ROOT;
if (!root) {
let rootOffset = (HEAP_BASE + AL_MASK) & ~AL_MASK;
let pagesBefore = current_memory();
let pagesBefore = memory.size();
let pagesNeeded = <i32>((((rootOffset + Root.SIZE) + 0xffff) & ~0xffff) >>> 16);
if (pagesNeeded > pagesBefore && grow_memory(pagesNeeded - pagesBefore) < 0) unreachable();
if (pagesNeeded > pagesBefore && memory.grow(pagesNeeded - pagesBefore) < 0) unreachable();
ROOT = root = changetype<Root>(rootOffset);
root.tailRef = 0;
root.flMap = 0;
@ -455,7 +454,7 @@ export function allocate_memory(size: usize): usize {
root.setHead(fl, sl, null);
}
}
root.addMemory((rootOffset + Root.SIZE + AL_MASK) & ~AL_MASK, current_memory() << 16);
root.addMemory((rootOffset + Root.SIZE + AL_MASK) & ~AL_MASK, memory.size() << 16);
}
// search for a suitable block
@ -469,15 +468,15 @@ export function allocate_memory(size: usize): usize {
if (!block) {
// request more memory
let pagesBefore = current_memory();
let pagesBefore = memory.size();
let pagesNeeded = <i32>(((size + 0xffff) & ~0xffff) >>> 16);
let pagesWanted = max(pagesBefore, pagesNeeded); // double memory
if (grow_memory(pagesWanted) < 0) {
if (grow_memory(pagesNeeded) < 0) {
if (memory.grow(pagesWanted) < 0) {
if (memory.grow(pagesNeeded) < 0) {
unreachable(); // out of memory
}
}
let pagesAfter = current_memory();
let pagesAfter = memory.size();
root.addMemory(<usize>pagesBefore << 16, <usize>pagesAfter << 16);
block = assert(root.search(size)); // must be found now
}
@ -490,8 +489,7 @@ export function allocate_memory(size: usize): usize {
}
/** Frees the chunk of memory at the specified address. */
@global
export function free_memory(data: usize): void {
@global export function __memory_free(data: usize): void {
if (data) {
let root = ROOT;
if (root) {
@ -504,7 +502,6 @@ export function free_memory(data: usize): void {
}
}
@global
export function reset_memory(): void {
@global export function __memory_reset(): void {
unreachable();
}