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//@ compile-flags: -O -Z randomize-layout=no
//@ only-x86_64
//@ ignore-llvm-version: 16.0.0
// ^-- needs https://reviews.llvm.org/D146149 in 16.0.1
#![crate_type = "lib"]
#![feature(generic_nonzero)]
extern crate core;
use core::num::NonZero;
use core::option::Option;
// CHECK-LABEL: @u64_opt_as_slice
#[no_mangle]
pub fn u64_opt_as_slice(o: &Option<u64>) -> &[u64] {
// CHECK-NOT: select
// CHECK-NOT: br
// CHECK-NOT: switch
// CHECK-NOT: icmp
o.as_slice()
}
// CHECK-LABEL: @nonzero_u64_opt_as_slice
#[no_mangle]
pub fn nonzero_u64_opt_as_slice(o: &Option<NonZero<u64>>) -> &[NonZero<u64>] {
// CHECK-NOT: select
// CHECK-NOT: br
// CHECK-NOT: switch
// CHECK-NOT: icmp
// CHECK: %[[NZ:.+]] = icmp ne i64 %{{.+}}, 0
// CHECK-NEXT: zext i1 %[[NZ]] to i64
// CHECK-NOT: select
// CHECK-NOT: br
// CHECK-NOT: switch
// CHECK-NOT: icmp
o.as_slice()
}
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