14 lines
300 B
Rust
14 lines
300 B
Rust
|
// compile-flags: -O
|
||
|
|
// min-llvm-version: 16
|
||
|
|
|
||
|
|
#![crate_type = "lib"]
|
||
|
|
|
||
|
|
#[no_mangle]
|
||
|
|
pub fn all_zero(data: &[u64]) -> bool {
|
||
|
|
// CHECK-LABEL: @all_zero(
|
||
|
|
// CHECK: [[PHI:%.*]] = phi i1
|
||
|
|
// CHECK-NOT: phi i8
|
||
|
|
// CHECK-NOT: zext
|
||
|
|
data.iter().copied().fold(true, |acc, x| acc & (x == 0))
|
||
|
|
}
|