2020-09-20 04:15:00 -05:00
|
|
|
// Test that `wrapping_div` only checks divisor once.
|
2022-08-17 21:13:37 -05:00
|
|
|
// This test checks that there is only a single compare against -1 and -1 is not present as a
|
2020-09-20 04:15:00 -05:00
|
|
|
// switch case (the second check present until rustc 1.12).
|
|
|
|
|
// This test also verifies that a single panic call is generated (for the division by zero case).
|
|
|
|
|
|
|
|
|
|
// compile-flags: -O
|
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: @f
|
|
|
|
|
#[no_mangle]
|
|
|
|
|
pub fn f(x: i32, y: i32) -> i32 {
|
|
|
|
|
// CHECK-COUNT-1: icmp eq i32 %y, -1
|
|
|
|
|
// CHECK-COUNT-1: panic
|
|
|
|
|
// CHECK-NOT: i32 -1, label
|
|
|
|
|
x.wrapping_div(y)
|
|
|
|
|
}
|
