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// unit-test: DataflowConstProp
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
#![feature(offset_of_nested)]
use std::marker::PhantomData;
use std::mem::offset_of;
struct Alpha {
x: u8,
y: u16,
z: Beta,
}
struct Beta(u8, u8);
struct Gamma<T> {
x: u8,
y: u16,
_t: T,
}
#[repr(C)]
struct Delta<T> {
_phantom: PhantomData<T>,
x: u8,
y: u16,
}
// EMIT_MIR offset_of.concrete.DataflowConstProp.diff
// CHECK-LABEL: fn concrete(
fn concrete() {
// CHECK: debug x => [[x:_.*]];
// CHECK: debug y => [[y:_.*]];
// CHECK: debug z0 => [[z0:_.*]];
// CHECK: debug z1 => [[z1:_.*]];
// CHECK: [[x]] = must_use::<usize>(const 4_usize) -> {{.*}}
let x = offset_of!(Alpha, x);
// CHECK: [[y]] = must_use::<usize>(const 0_usize) -> {{.*}}
let y = offset_of!(Alpha, y);
// CHECK: [[z0]] = must_use::<usize>(const 2_usize) -> {{.*}}
let z0 = offset_of!(Alpha, z.0);
// CHECK: [[z1]] = must_use::<usize>(const 3_usize) -> {{.*}}
let z1 = offset_of!(Alpha, z.1);
}
// EMIT_MIR offset_of.generic.DataflowConstProp.diff
// CHECK-LABEL: fn generic(
fn generic<T>() {
// CHECK: debug gx => [[gx:_.*]];
// CHECK: debug gy => [[gy:_.*]];
// CHECK: debug dx => [[dx:_.*]];
// CHECK: debug dy => [[dy:_.*]];
// CHECK: [[gx]] = must_use::<usize>(move {{_.*}}) -> {{.*}}
let gx = offset_of!(Gamma<T>, x);
// CHECK: [[gy]] = must_use::<usize>(move {{_.*}}) -> {{.*}}
let gy = offset_of!(Gamma<T>, y);
// CHECK: [[dx]] = must_use::<usize>(const 0_usize) -> {{.*}}
let dx = offset_of!(Delta<T>, x);
// CHECK: [[dy]] = must_use::<usize>(const 2_usize) -> {{.*}}
let dy = offset_of!(Delta<T>, y);
}
fn main() {
concrete();
generic::<()>();
}
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