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Merged
Amanieu merged 2 commits into from
Oct 30, 2021
Merged

Add a rudimentary wasm64 module with intrinsics #1240

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53d9520
Add a rudimentary `wasm64` module with intrinsics
alexcrichton Oct 28, 2021
eb16b74
Update memory intrinsics for memory64
alexcrichton Oct 28, 2021
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Update memory intrinsics for memory64
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@alexcrichton
alexcrichton committed Oct 28, 2021
commit eb16b74241e76c0fd17f9238aa21ab22ccf1072e
12 changes: 6 additions & 6 deletions crates/core_arch/src/wasm32/memory.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,10 @@
use stdarch_test::assert_instr;

extern "C" {
#[link_name = "llvm.wasm.memory.grow.i32"]
fn llvm_memory_grow(mem: u32, pages: i32) -> i32;
#[link_name = "llvm.wasm.memory.size.i32"]
fn llvm_memory_size(mem: u32) -> i32;
#[link_name = "llvm.wasm.memory.grow"]
fn llvm_memory_grow(mem: u32, pages: usize) -> usize;
#[link_name = "llvm.wasm.memory.size"]
fn llvm_memory_size(mem: u32) -> usize;
}

/// Corresponding intrinsic to wasm's [`memory.size` instruction][instr]
Expand All @@ -27,7 +27,7 @@ extern "C" {
#[doc(alias("memory.size"))]
pub fn memory_size<const MEM: u32>() -> usize {
static_assert!(MEM: u32 where MEM == 0);
unsafe { llvm_memory_size(MEM) as usize }
unsafe { llvm_memory_size(MEM) }
}

/// Corresponding intrinsic to wasm's [`memory.grow` instruction][instr]
Expand All @@ -53,6 +53,6 @@ pub fn memory_size<const MEM: u32>() -> usize {
pub fn memory_grow<const MEM: u32>(delta: usize) -> usize {
unsafe {
static_assert!(MEM: u32 where MEM == 0);
llvm_memory_grow(MEM, delta as i32) as isize as usize
llvm_memory_grow(MEM, delta)
}
}