mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 13:04:42 +00:00
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
1.0 KiB
Rust
29 lines
1.0 KiB
Rust
//@ compile-flags: -C no-prepopulate-passes -Copt-level=0
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
// Hack to get the correct size for the length part in slices
|
|
// CHECK: @helper([[USIZE:i[0-9]+]] %_1)
|
|
#[no_mangle]
|
|
pub fn helper(_: usize) {}
|
|
|
|
// CHECK-LABEL: @no_op_slice_adjustment
|
|
#[no_mangle]
|
|
pub fn no_op_slice_adjustment(x: &[u8]) -> &[u8] {
|
|
// We used to generate an extra alloca and memcpy for the block's trailing expression value, so
|
|
// check that we copy directly to the return value slot
|
|
// CHECK: %0 = insertvalue { ptr, [[USIZE]] } poison, ptr %x.0, 0
|
|
// CHECK: %1 = insertvalue { ptr, [[USIZE]] } %0, [[USIZE]] %x.1, 1
|
|
// CHECK: ret { ptr, [[USIZE]] } %1
|
|
{ x }
|
|
}
|
|
|
|
// CHECK-LABEL: @no_op_slice_adjustment2
|
|
#[no_mangle]
|
|
pub fn no_op_slice_adjustment2(x: &[u8]) -> &[u8] {
|
|
// We used to generate an extra alloca and memcpy for the function's return value, so check
|
|
// that there's no memcpy (the slice is written to sret_slot element-wise)
|
|
// CHECK-NOT: call void @llvm.memcpy.
|
|
no_op_slice_adjustment(x)
|
|
}
|