rust/tests/codegen/array-cmp.rs

// Ensure the asm for array comparisons is properly optimized.

//@ compile-flags: -C opt-level=2

#![crate_type = "lib"]

// CHECK-LABEL: @compare
// CHECK: start:
// CHECK-NEXT: ret i1 true
#[no_mangle]
pub fn compare() -> bool {
    let bytes = 12.5f32.to_ne_bytes();
    bytes
        == if cfg!(target_endian = "big") {
            [0x41, 0x48, 0x00, 0x00]
        } else {
            [0x00, 0x00, 0x48, 0x41]
        }
}
Add codegen test for array comparision opt 2024-05-20 00:21:06 +00:00			`// Ensure the asm for array comparisons is properly optimized.`

			`//@ compile-flags: -C opt-level=2`

			`#![crate_type = "lib"]`

			`// CHECK-LABEL: @compare`
			`// CHECK: start:`
			`// CHECK-NEXT: ret i1 true`
			`#[no_mangle]`
			`pub fn compare() -> bool {`
			`let bytes = 12.5f32.to_ne_bytes();`
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`. 2024-05-29 04:11:20 +00:00			`bytes`
			`== if cfg!(target_endian = "big") {`
			`[0x41, 0x48, 0x00, 0x00]`
			`} else {`
			`[0x00, 0x00, 0x48, 0x41]`
			`}`
Add codegen test for array comparision opt 2024-05-20 00:21:06 +00:00			`}`