rust/tests/codegen/to_vec.rs

//@ 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
}
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 16:59:47 -06:00			`//@ compile-flags: -O`

			`#![crate_type = "lib"]`

			`// CHECK-LABEL: @copy_to_vec`
			`#[no_mangle]`
			`fn copy_to_vec(s: &[u64]) -> Vec<u64> {`
Run rustfmt on `tests/codegen/`. 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`. 2024-05-28 23:11:20 -05:00			`s.to_vec()`
			`// CHECK: call void @llvm.memcpy`
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 16:59:47 -06:00			`}`