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Alex Crichton alexcrichton

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@alexcrichton
alexcrichton / gist:65e557ea5cd6dd915a6528010986281e
Created March 16, 2026 22:41
;; Run test case
test run
set opt_level=speed
target x86_64
function %my_fn(i128 sext, i16x8, f64, f32x4, i64x2, i128 sext, i32 sext, i64 sext, f32, i16 uext, i64x2, i16 sext, i32x4, i8 sext, i8x16, i8x16) -> i128 sext, i16x8, f64, f32x4, f32x4, i64x2, i8 uext, i8, f64x2, i32 uext, f32, i128 uext, i32 uext, i64 sext, f32, i16 uext fast {
ss0 = explicit_slot 65, align = 1024
ss1 = explicit_slot 62, align = 1024
ss2 = explicit_slot 16, align = 16
@alexcrichton
alexcrichton / foo.diff
Created February 27, 2026 20:28
diff --git a/fuzz/src/roundtrip_wit.rs b/fuzz/src/roundtrip_wit.rs
index 480093bb6..9279296a7 100644
--- a/fuzz/src/roundtrip_wit.rs
+++ b/fuzz/src/roundtrip_wit.rs
@@ -79,8 +79,11 @@ pub fn run(u: &mut Unstructured<'_>) -> Result<()> {
// Decode what was just created and record it later for testing merging
// worlds together.
- let (_, decoded) = wit_component::metadata::decode(&dummy).unwrap();
- decoded_bindgens.push((decoded, dummy, world.name.clone()));
@alexcrichton
alexcrichton / foo.diff
Created February 27, 2026 19:37
diff --git a/fuzz/src/roundtrip_wit.rs b/fuzz/src/roundtrip_wit.rs
index 480093bb6..9593a31e1 100644
--- a/fuzz/src/roundtrip_wit.rs
+++ b/fuzz/src/roundtrip_wit.rs
@@ -79,8 +79,11 @@ pub fn run(u: &mut Unstructured<'_>) -> Result<()> {
// Decode what was just created and record it later for testing merging
// worlds together.
- let (_, decoded) = wit_component::metadata::decode(&dummy).unwrap();
- decoded_bindgens.push((decoded, dummy, world.name.clone()));
@alexcrichton
alexcrichton / main.rs
Created February 25, 2026 01:21
#[allow(unused_variables, dead_code)]
mod my_fs {
use wasi::filesystem::preopens;
use wasi::filesystem::types;
use wasmtime::component::{HasData, Linker, Resource, ResourceTable};
wasmtime::component::bindgen!({
with: {
"wasi:clocks": wasmtime_wasi::p2::bindings::clocks,
"wasi:io": wasmtime_wasi::p2::bindings::io,
@alexcrichton
alexcrichton / main.rs
Created February 25, 2026 01:06
#[allow(unused_variables, dead_code)]
mod my_fs {
use wasi::filesystem::preopens;
use wasi::filesystem::types;
use wasmtime::component::{HasData, Linker, Resource};
wasmtime::component::bindgen!({
with: {
"wasi:clocks": wasmtime_wasi::p2::bindings::clocks,
"wasi:io": wasmtime_wasi::p2::bindings::io,
@alexcrichton
alexcrichton / out.diff
Created October 23, 2025 15:49
diff --git a/wasmtime/_bindings.py b/wasmtime/_bindings.py
index 9de3cb8..a9218a0 100644
--- a/wasmtime/_bindings.py
+++ b/wasmtime/_bindings.py
@@ -2148,6 +2148,18 @@ _wasmtime_config_wasm_wide_arithmetic_set.argtypes = [POINTER(wasm_config_t), c_
def wasmtime_config_wasm_wide_arithmetic_set(arg0: Any, arg1: Any) -> None:
return _wasmtime_config_wasm_wide_arithmetic_set(arg0, arg1) # type: ignore
+_wasmtime_config_wasm_exceptions_set = dll.wasmtime_config_wasm_exceptions_set
+_wasmtime_config_wasm_exceptions_set.restype = None
@alexcrichton
alexcrichton / out.diff
Created October 22, 2025 15:21
diff --git a/crates/wasmtime/src/runtime/debug.rs b/crates/wasmtime/src/runtime/debug.rs
index 0977bf8bc8..374e3d11c5 100644
--- a/crates/wasmtime/src/runtime/debug.rs
+++ b/crates/wasmtime/src/runtime/debug.rs
@@ -3,11 +3,9 @@
use crate::{
AnyRef, AsContext, AsContextMut, ExnRef, ExternRef, Func, Instance, Module, OwnedRooted,
StoreContext, StoreContextMut, Val,
- prelude::Box,
store::{AutoAssertNoGc, StoreOpaque},
@alexcrichton
alexcrichton / gist:0e87ad78de92f7ada9112d34e1012f8e
Created October 22, 2025 15:21
diff --git a/crates/wasmtime/src/runtime/debug.rs b/crates/wasmtime/src/runtime/debug.rs
index 0977bf8bc8..374e3d11c5 100644
--- a/crates/wasmtime/src/runtime/debug.rs
+++ b/crates/wasmtime/src/runtime/debug.rs
@@ -3,11 +3,9 @@
use crate::{
AnyRef, AsContext, AsContextMut, ExnRef, ExternRef, Func, Instance, Module, OwnedRooted,
StoreContext, StoreContextMut, Val,
- prelude::Box,
store::{AutoAssertNoGc, StoreOpaque},
@alexcrichton
alexcrichton / foo.diff
Created September 11, 2025 23:21
diff --git a/lua-5.4.8/lauxlib.c b/lua-5.4.8/lauxlib.c
index 923105e..6df05d0 100644
--- a/lua-5.4.8/lauxlib.c
+++ b/lua-5.4.8/lauxlib.c
@@ -265,7 +265,7 @@ LUALIB_API int luaL_fileresult (lua_State *L, int stat, const char *fname) {
#if !defined(l_inspectstat) /* { */
-#if defined(LUA_USE_POSIX)
+#if defined(LUA_USE_POSIX) && !defined(__wasi__)
@alexcrichton
alexcrichton / foo.wast
Created September 3, 2025 19:57
(module
(func (export "f")
(param
i32 i32 i32 i32
i32 i32 i32 i32
i32 i32 i32 i32
i32 i32 i32 i32
i32
)
(result