72800d3b89
Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`.
29 lines
986 B
Rust
29 lines
986 B
Rust
//@ compile-flags: -C opt-level=0
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//@ needs-unwind
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// Test that `nounwind` attributes are correctly applied to exported `C` and `C-unwind` extern
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// functions. `C-unwind` functions MUST NOT have this attribute. We disable optimizations above
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// to prevent LLVM from inferring the attribute.
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#![crate_type = "lib"]
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#![feature(c_unwind)]
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// CHECK: @rust_item_that_cannot_unwind() unnamed_addr #0 {
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#[no_mangle]
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pub extern "C" fn rust_item_that_cannot_unwind() {}
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// CHECK: @rust_item_that_can_unwind() unnamed_addr #1 {
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#[no_mangle]
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pub extern "C-unwind" fn rust_item_that_can_unwind() {}
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// Now, make some assertions that the LLVM attributes for these 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 #0 = { {{.*}}nounwind{{.*}} }
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//
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// Next, let's assert that the second item, which CAN unwind, does not have this attribute.
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//
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// CHECK: attributes #1 = {
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// CHECK-NOT: nounwind
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// CHECK: }
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