115 lines
3 KiB
Rust
115 lines
3 KiB
Rust
//@ compile-flags: -Zmir-opt-level=0
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// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
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#![feature(offset_of_enum)]
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use std::marker::PhantomData;
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use std::mem::offset_of;
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struct Alpha {
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x: u8,
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y: u16,
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z: Beta,
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}
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struct Beta(u8, u8);
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struct Gamma<T> {
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x: u8,
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y: u16,
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_t: T,
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}
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#[repr(C)]
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struct Delta<T> {
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_phantom: PhantomData<T>,
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x: u8,
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y: u16,
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}
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enum Blah {
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A,
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B { x: u8, y: usize },
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}
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// CHECK-LABEL: fn concrete(
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fn concrete() {
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// CHECK: debug x => [[x:_.*]];
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// CHECK: debug y => [[y:_.*]];
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// CHECK: debug h => [[h:_.*]];
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// CHECK: debug z0 => [[z0:_.*]];
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// CHECK: debug z1 => [[z1:_.*]];
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// CHECK: [[x]] = const concrete::[[const_x:.*]];
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let x = offset_of!(Alpha, x);
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// CHECK: [[y]] = const concrete::[[const_y:.*]];
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let y = offset_of!(Alpha, y);
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// CHECK: [[h]] = const concrete::[[const_h:.*]];
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let h = offset_of!(Blah, B.y);
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// CHECK: [[z0]] = const concrete::[[const_z0:.*]];
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let z0 = offset_of!(Alpha, z.0);
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// CHECK: [[z1]] = const concrete::[[const_z1:.*]];
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let z1 = offset_of!(Alpha, z.1);
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}
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// CHECK: concrete::[[const_x]]: usize
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// CHECK: _0 = offset_of::<Alpha>(const 0_u32, const 0_u32)
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// CHECK: concrete::[[const_y]]: usize
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// CHECK: _0 = offset_of::<Alpha>(const 0_u32, const 1_u32)
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// CHECK: concrete::[[const_h]]: usize
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// CHECK: _0 = offset_of::<Blah>(const 1_u32, const 1_u32)
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// CHECK: concrete::[[const_z0]]: usize
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// CHECK: [[z:_.*]] = offset_of::<Alpha>(const 0_u32, const 2_u32)
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// CHECK: [[z0:_.*]] = offset_of::<Beta>(const 0_u32, const 0_u32)
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// CHECK: [[sum:_.*]] = AddWithOverflow(copy [[z]], copy [[z0]]);
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// CHECK: _0 = move ([[sum]].0: usize);
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// CHECK: concrete::[[const_z1]]: usize
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// CHECK: [[z:_.*]] = offset_of::<Alpha>(const 0_u32, const 2_u32)
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// CHECK: [[z1:_.*]] = offset_of::<Beta>(const 0_u32, const 1_u32)
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// CHECK: [[sum:_.*]] = AddWithOverflow(copy [[z]], copy [[z1]]);
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// CHECK: _0 = move ([[sum]].0: usize);
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// CHECK-LABEL: fn generic(
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fn generic<T>() {
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// CHECK: debug gx => [[gx:_.*]];
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// CHECK: debug gy => [[gy:_.*]];
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// CHECK: debug dx => [[dx:_.*]];
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// CHECK: debug dy => [[dy:_.*]];
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// CHECK: [[gx]] = const generic::<T>::[[const_gx:.*]];
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let gx = offset_of!(Gamma<T>, x);
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// CHECK: [[gy]] = const generic::<T>::[[const_gy:.*]];
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let gy = offset_of!(Gamma<T>, y);
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// CHECK: [[dx]] = const generic::<T>::[[const_dx:.*]];
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let dx = offset_of!(Delta<T>, x);
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// CHECK: [[dy]] = const generic::<T>::[[const_dy:.*]];
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let dy = offset_of!(Delta<T>, y);
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}
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// CHECK: generic::[[const_gx]]: usize
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// CHECK: _0 = offset_of::<Gamma<T>>(const 0_u32, const 0_u32)
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// CHECK: generic::[[const_gy]]: usize
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// CHECK: _0 = offset_of::<Gamma<T>>(const 0_u32, const 1_u32)
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// CHECK: generic::[[const_dx]]: usize
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// CHECK: _0 = offset_of::<Delta<T>>(const 0_u32, const 1_u32)
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// CHECK: generic::[[const_dy]]: usize
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// CHECK: _0 = offset_of::<Delta<T>>(const 0_u32, const 2_u32)
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fn main() {
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concrete();
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generic::<()>();
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}
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