| // 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 -Zmerge-functions=disabled |
| |
| #![crate_type = "lib"] |
| |
| use std::cmp::Ordering; |
| |
| // CHECK-LABEL: @cmp_signed |
| #[no_mangle] |
| pub fn cmp_signed(a: i64, b: i64) -> Ordering { |
| // CHECK: call{{.*}} i8 @llvm.scmp.i8.i64 |
| a.cmp(&b) |
| } |
| |
| // CHECK-LABEL: @cmp_unsigned |
| #[no_mangle] |
| pub fn cmp_unsigned(a: u32, b: u32) -> Ordering { |
| // CHECK: call{{.*}} i8 @llvm.ucmp.i8.i32 |
| a.cmp(&b) |
| } |
| |
| // CHECK-LABEL: @cmp_char |
| #[no_mangle] |
| pub fn cmp_char(a: char, b: char) -> Ordering { |
| // CHECK: call{{.*}} i8 @llvm.ucmp.i8.i32 |
| a.cmp(&b) |
| } |
| |
| // CHECK-LABEL: @cmp_tuple |
| #[no_mangle] |
| pub fn cmp_tuple(a: (i16, u16), b: (i16, u16)) -> Ordering { |
| // CHECK-DAG: call{{.*}} i8 @llvm.ucmp.i8.i16 |
| // CHECK-DAG: call{{.*}} i8 @llvm.scmp.i8.i16 |
| // CHECK: ret i8 |
| a.cmp(&b) |
| } |
