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Bump size of global up to 128 bits.

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Fixes last spec test failure from the WAVM SIMD spec test.
This commit is contained in:
Nick Lewycky
2019-07-18 13:39:41 -07:00
parent 3be6a024aa
commit ea93b68165
5 changed files with 54 additions and 41 deletions
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51
lib/runtime-core/src/loader.rs
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@ -1,4 +1,4 @@
use crate::{backend::RunnableModule, module::ModuleInfo, types::Value, vm::Ctx};
use crate::{backend::RunnableModule, module::ModuleInfo, types::Type, types::Value, vm::Ctx};
#[cfg(unix)]
use libc::{mmap, mprotect, munmap, MAP_ANON, MAP_PRIVATE, PROT_EXEC, PROT_READ, PROT_WRITE};
use std::{
@ -62,34 +62,47 @@ pub struct LocalInstance {
impl Instance for LocalInstance {
type Error = String;
fn call(&mut self, id: usize, args: &[Value]) -> Result<u64, Self::Error> {
let mut args_u64: Vec<u64> = Vec::new();
for arg in args {
if arg.ty() == Type::V128 {
let bytes = arg.to_u128().to_le_bytes();
let mut lo = [0u8; 8];
lo.clone_from_slice(&bytes[0..8]);
args_u64.push(u64::from_le_bytes(lo));
let mut hi = [0u8; 8];
hi.clone_from_slice(&bytes[8..16]);
args_u64.push(u64::from_le_bytes(hi));
} else {
args_u64.push(arg.to_u128() as u64);
}
}
let offset = self.offsets[id];
let addr: *const u8 = unsafe { self.code.as_ptr().offset(offset as isize) };
use std::mem::transmute;
Ok(unsafe {
match args.len() {
match args_u64.len() {
0 => (transmute::<_, extern "C" fn() -> u64>(addr))(),
1 => (transmute::<_, extern "C" fn(u64) -> u64>(addr))(args[0].to_u64()),
2 => (transmute::<_, extern "C" fn(u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
),
1 => (transmute::<_, extern "C" fn(u64) -> u64>(addr))(args_u64[0]),
2 => {
(transmute::<_, extern "C" fn(u64, u64) -> u64>(addr))(args_u64[0], args_u64[1])
}
3 => (transmute::<_, extern "C" fn(u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
args_u64[0],
args_u64[1],
args_u64[2],
),
4 => (transmute::<_, extern "C" fn(u64, u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
args[3].to_u64(),
args_u64[0],
args_u64[1],
args_u64[2],
args_u64[3],
),
5 => (transmute::<_, extern "C" fn(u64, u64, u64, u64, u64) -> u64>(addr))(
args[0].to_u64(),
args[1].to_u64(),
args[2].to_u64(),
args[3].to_u64(),
args[4].to_u64(),
args_u64[0],
args_u64[1],
args_u64[2],
args_u64[3],
args_u64[4],
),
_ => return Err("too many arguments".into()),
}