mirror of https://github.com/rust-lang/rust.git
39 lines
989 B
Rust
39 lines
989 B
Rust
// compile-flags: -O -Zmerge-functions=disabled
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
extern crate core;
|
|
use core::cmp::Ordering;
|
|
use core::num::{NonZeroU32, NonZeroI64};
|
|
use core::ptr::NonNull;
|
|
|
|
// See also tests/assembly/option-nonzero-eq.rs, for cases with `assume`s in the
|
|
// LLVM and thus don't optimize down clearly here, but do in assembly.
|
|
|
|
// CHECK-lABEL: @non_zero_eq
|
|
#[no_mangle]
|
|
pub fn non_zero_eq(l: Option<NonZeroU32>, r: Option<NonZeroU32>) -> bool {
|
|
// CHECK: start:
|
|
// CHECK-NEXT: icmp eq i32
|
|
// CHECK-NEXT: ret i1
|
|
l == r
|
|
}
|
|
|
|
// CHECK-lABEL: @non_zero_signed_eq
|
|
#[no_mangle]
|
|
pub fn non_zero_signed_eq(l: Option<NonZeroI64>, r: Option<NonZeroI64>) -> bool {
|
|
// CHECK: start:
|
|
// CHECK-NEXT: icmp eq i64
|
|
// CHECK-NEXT: ret i1
|
|
l == r
|
|
}
|
|
|
|
// CHECK-lABEL: @non_null_eq
|
|
#[no_mangle]
|
|
pub fn non_null_eq(l: Option<NonNull<u8>>, r: Option<NonNull<u8>>) -> bool {
|
|
// CHECK: start:
|
|
// CHECK-NEXT: icmp eq {{(i8\*|ptr)}}
|
|
// CHECK-NEXT: ret i1
|
|
l == r
|
|
}
|