39 lines
777 B
Rust
39 lines
777 B
Rust
// This test case checks that slice::{r}position functions do not
|
|
// prevent optimizing away bounds checks
|
|
|
|
// compile-flags: -O
|
|
|
|
#![crate_type="rlib"]
|
|
|
|
// CHECK-LABEL: @test
|
|
#[no_mangle]
|
|
pub fn test(y: &[u32], x: &u32, z: &u32) -> bool {
|
|
let result = match y.iter().position(|a| a == x) {
|
|
Some(p) => Ok(p),
|
|
None => Err(()),
|
|
};
|
|
|
|
if let Ok(p) = result {
|
|
// CHECK-NOT: panic
|
|
y[p] == *z
|
|
} else {
|
|
false
|
|
}
|
|
}
|
|
|
|
// CHECK-LABEL: @rtest
|
|
#[no_mangle]
|
|
pub fn rtest(y: &[u32], x: &u32, z: &u32) -> bool {
|
|
let result = match y.iter().rposition(|a| a == x) {
|
|
Some(p) => Ok(p),
|
|
None => Err(()),
|
|
};
|
|
|
|
if let Ok(p) = result {
|
|
// CHECK-NOT: panic
|
|
y[p] == *z
|
|
} else {
|
|
false
|
|
}
|
|
}
|