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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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21
std/assembly/allocator/buddy.ts
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@ -176,10 +176,10 @@ function update_max_ptr(new_value: usize): i32 {
// if (brk(new_value)) {
// return 0;
// }
let oldPages = <u32>current_memory();
let newPages = <u32>(((new_value + 0xffff) & ~0xffff) >> 16);
let oldPages = <i32>memory.size();
let newPages = <i32>(((new_value + 0xffff) & ~0xffff) >>> 16);
assert(newPages > oldPages);
if (grow_memory(newPages - oldPages) < 0) {
if (memory.grow(newPages - oldPages) < 0) {
return 0;
}
// max_ptr = new_value;
@ -338,8 +338,9 @@ function lower_bucket_limit(bucket: usize): u32 {
return 1;
}
@global
export function allocate_memory(request: usize): usize {
// Memory allocator interface
@global export function __memory_allocate(request: usize): usize {
var original_bucket: usize, bucket: usize;
/*
@ -357,7 +358,7 @@ export function allocate_memory(request: usize): usize {
if (base_ptr == 0) {
// base_ptr = max_ptr = (uint8_t *)sbrk(0);
base_ptr = (NODE_IS_SPLIT_END + 7) & ~7; // must be aligned
max_ptr = <usize>current_memory() << 16; // must grow first
max_ptr = <usize>memory.size() << 16; // must grow first
bucket_limit = BUCKET_COUNT - 1;
if (!update_max_ptr(base_ptr + List.SIZE)) {
return 0;
@ -473,8 +474,7 @@ export function allocate_memory(request: usize): usize {
return 0;
}
@global
export function free_memory(ptr: usize): void {
@global export function __memory_free(ptr: usize): void {
var bucket: usize, i: usize;
/*
@ -538,8 +538,3 @@ export function free_memory(ptr: usize): void {
*/
list_push(buckets$get(bucket), changetype<List>(ptr_for_node(i, bucket)));
}
@global
export function reset_memory(): void {
unreachable();
}