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// Checks how `reg-struct-return` flag works with different calling conventions:
// Return struct with 8/16/32/64 bit size will be converted into i8/i16/i32/i64
// (like abi_return_struct_as_int target spec).
// x86 only.
//@ revisions: ENABLED DISABLED
//@ add-core-stubs
//@ compile-flags: --target i686-unknown-linux-gnu -O -C no-prepopulate-passes
//@ [ENABLED] compile-flags: -Zreg-struct-return
//@ needs-llvm-components: x86
#![crate_type = "lib"]
#![no_std]
#![no_core]
#![feature(no_core, lang_items)]
extern crate minicore;
use minicore::*;
#[repr(C)]
pub struct Foo {
x: u32,
y: u32,
}
#[repr(C)]
pub struct Foo1 {
x: u32,
}
#[repr(C)]
pub struct Foo2 {
x: bool,
y: bool,
z: i16,
}
#[repr(C)]
pub struct Foo3 {
x: i16,
y: bool,
z: bool,
}
#[repr(C)]
pub struct Foo4 {
x: char,
y: bool,
z: u8,
}
#[repr(C)]
pub struct Foo5 {
x: u32,
y: u16,
z: u8,
a: bool,
}
#[repr(C)]
pub struct FooOversize1 {
x: u32,
y: u32,
z: u32,
}
#[repr(C)]
pub struct FooOversize2 {
f0: u16,
f1: u16,
f2: u16,
f3: u16,
f4: u16,
}
#[repr(C)]
pub struct FooFloat1 {
x: f32,
y: f32,
}
#[repr(C)]
pub struct FooFloat2 {
x: f64,
}
#[repr(C)]
pub struct FooFloat3 {
x: f32,
}
pub mod tests {
use {
Foo, Foo1, Foo2, Foo3, Foo4, Foo5, FooFloat1, FooFloat2, FooFloat3, FooOversize1,
FooOversize2,
};
// ENABLED: i64 @f1()
// DISABLED: void @f1(ptr {{.*}}sret
#[no_mangle]
pub extern "fastcall" fn f1() -> Foo {
Foo { x: 1, y: 2 }
}
// CHECK: { i32, i32 } @f2()
#[no_mangle]
pub extern "Rust" fn f2() -> Foo {
Foo { x: 1, y: 2 }
}
// ENABLED: i64 @f3()
// DISABLED: void @f3(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f3() -> Foo {
Foo { x: 1, y: 2 }
}
// ENABLED: i64 @f4()
// DISABLED: void @f4(ptr {{.*}}sret
#[no_mangle]
pub extern "cdecl" fn f4() -> Foo {
Foo { x: 1, y: 2 }
}
// ENABLED: i64 @f5()
// DISABLED: void @f5(ptr {{.*}}sret
#[no_mangle]
pub extern "stdcall" fn f5() -> Foo {
Foo { x: 1, y: 2 }
}
// ENABLED: i64 @f6()
// DISABLED: void @f6(ptr {{.*}}sret
#[no_mangle]
pub extern "thiscall" fn f6() -> Foo {
Foo { x: 1, y: 2 }
}
// ENABLED: i32 @f7()
// DISABLED: void @f7(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f7() -> Foo1 {
Foo1 { x: 1 }
}
// ENABLED: i32 @f8()
// DISABLED: void @f8(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f8() -> Foo2 {
Foo2 { x: true, y: false, z: 5 }
}
// ENABLED: i32 @f9()
// DISABLED: void @f9(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f9() -> Foo3 {
Foo3 { x: 5, y: false, z: true }
}
// ENABLED: i64 @f10()
// DISABLED: void @f10(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f10() -> Foo4 {
Foo4 { x: 'x', y: true, z: 170 }
}
// ENABLED: i64 @f11()
// DISABLED: void @f11(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f11() -> Foo5 {
Foo5 { x: 1, y: 2, z: 3, a: true }
}
// CHECK: void @f12(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f12() -> FooOversize1 {
FooOversize1 { x: 1, y: 2, z: 3 }
}
// CHECK: void @f13(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f13() -> FooOversize2 {
FooOversize2 { f0: 1, f1: 2, f2: 3, f3: 4, f4: 5 }
}
// ENABLED: i64 @f14()
// DISABLED: void @f14(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f14() -> FooFloat1 {
FooFloat1 { x: 1.0, y: 1.0 }
}
// ENABLED: double @f15()
// DISABLED: void @f15(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f15() -> FooFloat2 {
FooFloat2 { x: 1.0 }
}
// ENABLED: float @f16()
// DISABLED: void @f16(ptr {{.*}}sret
#[no_mangle]
pub extern "C" fn f16() -> FooFloat3 {
FooFloat3 { x: 1.0 }
}
}
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