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Add memory_grow.wast test file.

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This commit is contained in:
Steve Akinyemi 2018-11-17 22:13:59 +01:00
parent ba6bc71019
commit e7923d3b32
5 changed files with 1615 additions and 8 deletions
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4
examples/memory.wat
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@ -14,10 +14,12 @@
(drop)
(memory.grow (i32.const 0))
(drop)
(memory.grow (i32.const 2))
(drop)
(memory.grow (i32.const 65536))
(drop)
(memory.grow (i32.const 12))
)

3
src/build_spectests.rs
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@ -15,7 +15,7 @@ static ENV_VAR: &str = "WASM_GENERATE_SPECTESTS";
static BANNER: &str = "// Rust test file autogenerated with cargo build (src/build_spectests.rs).
// Please do NOT modify it by hand, as it will be reseted on next build.\n";
const TESTS: [&str; 57] = [
const TESTS: [&str; 58] = [
"spectests/address.wast",
"spectests/align.wast",
"spectests/binary.wast",
@ -59,6 +59,7 @@ const TESTS: [&str; 57] = [
"spectests/left_to_right.wast",
"spectests/loop_.wast",
"spectests/memory.wast",
"spectests/memory_grow.wast",
"spectests/memory_redundancy.wast",
"spectests/nop.wast",
"spectests/return_.wast",

1602
src/spectests/memory_grow.rs Normal file
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File diff suppressed because it is too large Load Diff

1
src/spectests/mod.rs
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@ -58,6 +58,7 @@ mod labels;
mod left_to_right;
mod loop_;
mod memory;
mod memory_grow;
mod memory_redundancy;
mod nop;
mod return_;

13
src/webassembly/instance.rs
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@ -508,13 +508,14 @@ extern "C" fn grow_memory(size: u32, memory_index: u32, instance: &mut Instance)
let old_mem_size = instance
.memory_mut(memory_index as usize)
.grow(size)
.unwrap_or(i32::max_value()); // Should be -1 ?
.unwrap_or(-1);
// Get new memory bytes
let new_mem_bytes = (old_mem_size as usize + size as usize) * LinearMemory::WASM_PAGE_SIZE;
// Update data_pointer
instance.data_pointers.memories.get_unchecked_mut(memory_index as usize).len = new_mem_bytes;
if old_mem_size != -1 {
// Get new memory bytes
let new_mem_bytes = (old_mem_size as usize + size as usize) * LinearMemory::WASM_PAGE_SIZE;
// Update data_pointer
instance.data_pointers.memories.get_unchecked_mut(memory_index as usize).len = new_mem_bytes;
}
old_mem_size
}