mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 23:04:33 +00:00
cf6d6050f7
* The WASI targets deal with the `main` symbol a bit differently than native so some `codegen` and `assembly` tests have been ignored. * All `ignore-emscripten` directives have been updated to `ignore-wasm32` to be more clear that all wasm targets are ignored and it's not just Emscripten. * Most `ignore-wasm32-bare` directives are now gone. * Some ignore directives for wasm were switched to `needs-unwind` instead. * Many `ignore-wasm32*` directives are removed as the tests work with WASI as opposed to `wasm32-unknown-unknown`.
39 lines
1.3 KiB
Rust
39 lines
1.3 KiB
Rust
//@ needs-unwind - this test verifies the amount of drop calls when unwinding is used
|
|
//@ compile-flags: -C no-prepopulate-passes
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
struct SomeUniqueName;
|
|
|
|
impl Drop for SomeUniqueName {
|
|
#[inline(never)]
|
|
fn drop(&mut self) {
|
|
}
|
|
}
|
|
|
|
#[inline(never)]
|
|
pub fn possibly_unwinding() {
|
|
}
|
|
|
|
// CHECK-LABEL: @droppy
|
|
#[no_mangle]
|
|
pub fn droppy() {
|
|
// Check that there are exactly 6 drop calls. The cleanups for the unwinding should be reused, so
|
|
// that's one new drop call per call to possibly_unwinding(), and finally 3 drop calls for the
|
|
// regular function exit. We used to have problems with quadratic growths of drop calls in such
|
|
// functions.
|
|
// FIXME(eddyb) the `void @` forces a match on the instruction, instead of the
|
|
// comment, that's `; call core::ptr::drop_in_place::<drop::SomeUniqueName>`
|
|
// for the `v0` mangling, should switch to matching on that once `legacy` is gone.
|
|
// CHECK-COUNT-6: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName
|
|
// CHECK-NOT: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName
|
|
// The next line checks for the } that ends the function definition
|
|
// CHECK-LABEL: {{^[}]}}
|
|
let _s = SomeUniqueName;
|
|
possibly_unwinding();
|
|
let _s = SomeUniqueName;
|
|
possibly_unwinding();
|
|
let _s = SomeUniqueName;
|
|
possibly_unwinding();
|
|
}
|