rust/tests/codegen/option-nonzero-eq.rs

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//@ 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:
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// CHECK-NEXT: icmp eq ptr
// CHECK-NEXT: ret i1
l == r
}