13 lines
357 B
Rust
13 lines
357 B
Rust
// ignore-debug: the debug assertions get in the way
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// compile-flags: -O
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#![crate_type = "lib"]
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// Ensure that trivial casts of vec elements are O(1)
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// CHECK-LABEL: @vec_iterator_cast
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#[no_mangle]
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pub fn vec_iterator_cast(vec: Vec<isize>) -> Vec<usize> {
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// CHECK-NOT: loop
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// CHECK-NOT: call
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vec.into_iter().map(|e| e as usize).collect()
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}
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