rust/tests/codegen/integer-cmp.rs
2023-01-11 09:32:08 +00:00

29 lines
586 B
Rust

// This is test for more optimal Ord implementation for integers.
// See <https://github.com/rust-lang/rust/issues/63758> for more info.
// compile-flags: -C opt-level=3
#![crate_type = "lib"]
use std::cmp::Ordering;
// CHECK-LABEL: @cmp_signed
#[no_mangle]
pub fn cmp_signed(a: i64, b: i64) -> Ordering {
// CHECK: icmp slt
// CHECK: icmp ne
// CHECK: zext i1
// CHECK: select i1
a.cmp(&b)
}
// CHECK-LABEL: @cmp_unsigned
#[no_mangle]
pub fn cmp_unsigned(a: u32, b: u32) -> Ordering {
// CHECK: icmp ult
// CHECK: icmp ne
// CHECK: zext i1
// CHECK: select i1
a.cmp(&b)
}