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1f11d841b5748133c2d51da0001fc88bc6b51e78
rust/tests/codegen/to_vec.rs

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Change slice::to_vec to not use extend_from_slice This also required adding a loop guard in case clone panics Add specialization for copy There is a better version for copy, so I've added specialization for that function and hopefully that should speed it up even more. Switch FromIter<slice::Iter> to use `to_vec` Test different unrolling version for to_vec Revert to impl From benchmarking, it appears this version is faster
2020-11-18 22:59:47 +00:00
// compile-flags: -O
#![crate_type = "lib"]
// CHECK-LABEL: @copy_to_vec
#[no_mangle]
fn copy_to_vec(s: &[u64]) -> Vec<u64> {
s.to_vec()
// CHECK: call void @llvm.memcpy
}
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