mirror of https://github.com/rust-lang/rust.git
29 lines
983 B
Rust
29 lines
983 B
Rust
// compile-flags: -C panic=abort
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// Test that `nounwind` attributes are also applied to extern `C-unwind` Rust functions
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// when the code is compiled with `panic=abort`.
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#![crate_type = "lib"]
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#![feature(c_unwind)]
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// CHECK: @rust_item_that_can_unwind() unnamed_addr [[ATTR0:#[0-9]+]]
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#[no_mangle]
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pub unsafe extern "C-unwind" fn rust_item_that_can_unwind() {
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// Handle both legacy and v0 symbol mangling.
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// CHECK: call void @{{.*core9panicking19panic_cannot_unwind}}
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may_unwind();
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}
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extern "C-unwind" {
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// CHECK: @may_unwind() unnamed_addr [[ATTR1:#[0-9]+]]
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fn may_unwind();
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}
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// Now, make sure that the LLVM attributes for this functions are correct. First, make
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// sure that the first item is correctly marked with the `nounwind` attribute:
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//
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// CHECK: attributes [[ATTR0]] = { {{.*}}nounwind{{.*}} }
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//
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// Now, check that foreign item is correctly marked without the `nounwind` attribute.
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// CHECK-NOT: attributes [[ATTR1]] = { {{.*}}nounwind{{.*}} }
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