| //@ compile-flags: -Copt-level=3 |
| //@ revisions: new old |
| //@ [old] max-llvm-major-version: 21 |
| //@ [new] min-llvm-version: 22 |
| |
| #![crate_type = "lib"] |
| |
| #[no_mangle] |
| // CHECK-LABEL: @noop( |
| pub fn noop(v: &mut Vec<u8>) { |
| // CHECK-NOT: grow_one |
| // CHECK-NOT: call |
| // old: tail call void @llvm.assume |
| // CHECK-NOT: grow_one |
| // CHECK-NOT: call |
| // CHECK: {{ret|[}]}} |
| if let Some(x) = v.pop() { |
| v.push(x) |
| } |
| } |
| |
| #[no_mangle] |
| // CHECK-LABEL: @push_byte( |
| pub fn push_byte(v: &mut Vec<u8>) { |
| // CHECK: call {{.*}}grow_one |
| v.push(3); |
| } |
