mirror of
https://github.com/rust-lang/rust.git
synced 2024-12-11 08:05:12 +00:00
23 lines
577 B
Rust
23 lines
577 B
Rust
// compile-flags: -O
|
|
// min-llvm-version: 17
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
// CHECK-LABEL: @trailing_zeros_ge
|
|
#[no_mangle]
|
|
pub fn trailing_zeros_ge(val: u32) -> bool {
|
|
// CHECK: %[[AND:.*]] = and i32 %val, 7
|
|
// CHECK: %[[ICMP:.*]] = icmp eq i32 %[[AND]], 0
|
|
// CHECK: ret i1 %[[ICMP]]
|
|
val.trailing_zeros() >= 3
|
|
}
|
|
|
|
// CHECK-LABEL: @trailing_zeros_gt
|
|
#[no_mangle]
|
|
pub fn trailing_zeros_gt(val: u64) -> bool {
|
|
// CHECK: %[[AND:.*]] = and i64 %val, 15
|
|
// CHECK: %[[ICMP:.*]] = icmp eq i64 %[[AND]], 0
|
|
// CHECK: ret i1 %[[ICMP]]
|
|
val.trailing_zeros() > 3
|
|
}
|