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44 lines
1.2 KiB
Rust
44 lines
1.2 KiB
Rust
//@ revisions: emscripten wasi seh
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//@[emscripten] compile-flags: --target wasm32-unknown-emscripten -Z emscripten-wasm-eh
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//@[wasi] compile-flags: --target wasm32-wasip1 -C panic=unwind
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//@[seh] compile-flags: --target x86_64-pc-windows-msvc
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//@[emscripten] needs-llvm-components: webassembly
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//@[wasi] needs-llvm-components: webassembly
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//@[seh] needs-llvm-components: x86
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// Ensure a catch-all generates:
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// - `catchpad ... [ptr null]` on Wasm (otherwise LLVM gets confused)
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// - `catchpad ... [ptr null, i32 64, ptr null]` on Windows (otherwise we catch SEH exceptions)
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#![feature(no_core, lang_items, rustc_attrs)]
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#![crate_type = "lib"]
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#![no_std]
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#![no_core]
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#[lang = "pointee_sized"]
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pub trait PointeeSized {}
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#[lang = "meta_sized"]
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pub trait MetaSized: PointeeSized {}
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#[lang = "sized"]
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pub trait Sized: MetaSized {}
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unsafe extern "C-unwind" {
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safe fn unwinds();
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}
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#[lang = "panic_cannot_unwind"]
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fn panic_cannot_unwind() -> ! {
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loop {}
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}
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#[no_mangle]
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#[rustc_nounwind]
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pub fn doesnt_unwind() {
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// emscripten: %catchpad = catchpad within %catchswitch [ptr null]
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// wasi: %catchpad = catchpad within %catchswitch [ptr null]
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// seh: %catchpad = catchpad within %catchswitch [ptr null, i32 64, ptr null]
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unwinds();
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}
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