os-rust/src/test/codegen/union-abi.rs

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// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// compile-flags: -C no-prepopulate-passes
// This test that using union forward the abi of the inner type, as
// discussed in #54668
#![crate_type="lib"]
#![feature(repr_simd)]
#[derive(Copy, Clone)]
pub enum Unhab {}
#[repr(simd)]
#[derive(Copy, Clone)]
pub struct i64x4(i64, i64, i64, i64);
#[derive(Copy, Clone)]
pub union UnionI64x4{ a:(), b: i64x4 }
// CHECK: define <4 x i64> @test_UnionI64x4(<4 x i64> %arg0)
#[no_mangle]
pub extern fn test_UnionI64x4(_: UnionI64x4) -> UnionI64x4 { loop {} }
pub union UnionI64x4_{ a: i64x4, b: (), c:i64x4, d: Unhab, e: ((),()), f: UnionI64x4 }
// CHECK: define <4 x i64> @test_UnionI64x4_(<4 x i64> %arg0)
#[no_mangle]
pub extern fn test_UnionI64x4_(_: UnionI64x4_) -> UnionI64x4_ { loop {} }
pub union UnionI64x4I64{ a: i64x4, b: i64 }
// CHECK: define void @test_UnionI64x4I64(%UnionI64x4I64* {{.*}} %arg0)
#[no_mangle]
pub fn test_UnionI64x4I64(_: UnionI64x4I64) { loop {} }
pub union UnionI64x4Tuple{ a: i64x4, b: (i64, i64, i64, i64) }
// CHECK: define void @test_UnionI64x4Tuple(%UnionI64x4Tuple* {{.*}} %arg0)
#[no_mangle]
pub fn test_UnionI64x4Tuple(_: UnionI64x4Tuple) { loop {} }
pub union UnionF32{a:f32}
// CHECK: define float @test_UnionF32(float %arg0)
#[no_mangle]
pub extern fn test_UnionF32(_: UnionF32) -> UnionF32 { loop {} }
pub union UnionF32F32{a:f32, b:f32}
// CHECK: define float @test_UnionF32F32(float %arg0)
#[no_mangle]
pub extern fn test_UnionF32F32(_: UnionF32F32) -> UnionF32F32 { loop {} }
pub union UnionF32U32{a:f32, b:u32}
// CHECK: define i32 @test_UnionF32U32(i32)
#[no_mangle]
pub extern fn test_UnionF32U32(_: UnionF32U32) -> UnionF32U32 { loop {} }
pub union UnionU128{a:u128}
// CHECK: define i128 @test_UnionU128(i128 %arg0)
#[no_mangle]
pub fn test_UnionU128(_: UnionU128) -> UnionU128 { loop {} }
#[repr(C)]
pub union CUnionU128{a:u128}
// CHECK: define void @test_CUnionU128(%CUnionU128* {{.*}} %arg0)
#[no_mangle]
pub fn test_CUnionU128(_: CUnionU128) { loop {} }