f67453729c
OOM can't unwind today, and historically it's been optimized as if it can't unwind. This accidentally regressed with recent changes to the OOM handler, so this commit adds in a codegen test to assert that everything gets optimized away after the OOM function is approrpiately classified as nounwind Closes #50925
21 lines
695 B
Rust
21 lines
695 B
Rust
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// no-system-llvm
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// compile-flags: -O
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#![crate_type="lib"]
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#[no_mangle]
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pub fn get_len() -> usize {
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// CHECK-LABEL: @get_len
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// CHECK-NOT: call
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// CHECK-NOT: invoke
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[1, 2, 3].iter().collect::<Vec<_>>().len()
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}
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