mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 08:13:41 +00:00
138 lines
4.3 KiB
Rust
138 lines
4.3 KiB
Rust
// 32-bit systems will return 128bit values using a return area pointer.
|
|
//@ revisions: bit32 bit64
|
|
//@[bit32] only-32bit
|
|
//@[bit64] only-64bit
|
|
//@ compile-flags: -O -C no-prepopulate-passes -Z randomize-layout=no
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
#[repr(transparent)]
|
|
pub struct Transparent32(u32);
|
|
|
|
// CHECK: i32 @make_transparent(i32{{.*}} %x)
|
|
#[no_mangle]
|
|
pub fn make_transparent(x: u32) -> Transparent32 {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: ret i32 %x
|
|
let a = Transparent32(x);
|
|
a
|
|
}
|
|
|
|
// CHECK: i32 @make_closure(i32{{.*}} %x)
|
|
#[no_mangle]
|
|
pub fn make_closure(x: i32) -> impl Fn(i32) -> i32 {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: ret i32 %x
|
|
move |y| x + y
|
|
}
|
|
|
|
#[repr(transparent)]
|
|
pub struct TransparentPair((), (u16, u16), ());
|
|
|
|
// CHECK: { i16, i16 } @make_transparent_pair(i16 noundef %x.0, i16 noundef %x.1)
|
|
#[no_mangle]
|
|
pub fn make_transparent_pair(x: (u16, u16)) -> TransparentPair {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP0:.+]] = insertvalue { i16, i16 } poison, i16 %x.0, 0
|
|
// CHECK: %[[TEMP1:.+]] = insertvalue { i16, i16 } %[[TEMP0]], i16 %x.1, 1
|
|
// CHECK: ret { i16, i16 } %[[TEMP1]]
|
|
let a = TransparentPair((), x, ());
|
|
a
|
|
}
|
|
|
|
// CHECK-LABEL: { i32, i32 } @make_2_tuple(i32{{.*}} %x)
|
|
#[no_mangle]
|
|
pub fn make_2_tuple(x: u32) -> (u32, u32) {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP0:.+]] = insertvalue { i32, i32 } poison, i32 %x, 0
|
|
// CHECK: %[[TEMP1:.+]] = insertvalue { i32, i32 } %[[TEMP0]], i32 %x, 1
|
|
// CHECK: ret { i32, i32 } %[[TEMP1]]
|
|
let pair = (x, x);
|
|
pair
|
|
}
|
|
|
|
// CHECK-LABEL: i8 @make_cell_of_bool(i1 noundef zeroext %b)
|
|
#[no_mangle]
|
|
pub fn make_cell_of_bool(b: bool) -> std::cell::Cell<bool> {
|
|
// CHECK: %[[BYTE:.+]] = zext i1 %b to i8
|
|
// CHECK: ret i8 %[[BYTE]]
|
|
std::cell::Cell::new(b)
|
|
}
|
|
|
|
// CHECK-LABEL: { i8, i16 } @make_cell_of_bool_and_short(i1 noundef zeroext %b, i16{{.*}} %s)
|
|
#[no_mangle]
|
|
pub fn make_cell_of_bool_and_short(b: bool, s: u16) -> std::cell::Cell<(bool, u16)> {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[BYTE:.+]] = zext i1 %b to i8
|
|
// CHECK: %[[TEMP0:.+]] = insertvalue { i8, i16 } poison, i8 %[[BYTE]], 0
|
|
// CHECK: %[[TEMP1:.+]] = insertvalue { i8, i16 } %[[TEMP0]], i16 %s, 1
|
|
// CHECK: ret { i8, i16 } %[[TEMP1]]
|
|
std::cell::Cell::new((b, s))
|
|
}
|
|
|
|
// CHECK-LABEL: { i1, i1 } @make_tuple_of_bools(i1 noundef zeroext %a, i1 noundef zeroext %b)
|
|
#[no_mangle]
|
|
pub fn make_tuple_of_bools(a: bool, b: bool) -> (bool, bool) {
|
|
// CHECK-NOT: alloca
|
|
// CHECK: %[[TEMP0:.+]] = insertvalue { i1, i1 } poison, i1 %a, 0
|
|
// CHECK: %[[TEMP1:.+]] = insertvalue { i1, i1 } %[[TEMP0]], i1 %b, 1
|
|
// CHECK: ret { i1, i1 } %[[TEMP1]]
|
|
(a, b)
|
|
}
|
|
|
|
pub struct Struct0();
|
|
|
|
// CHECK-LABEL: void @make_struct_0()
|
|
#[no_mangle]
|
|
pub fn make_struct_0() -> Struct0 {
|
|
// CHECK: ret void
|
|
let s = Struct0();
|
|
s
|
|
}
|
|
|
|
pub struct Struct1(i32);
|
|
|
|
// CHECK-LABEL: i32 @make_struct_1(i32{{.*}} %a)
|
|
#[no_mangle]
|
|
pub fn make_struct_1(a: i32) -> Struct1 {
|
|
// CHECK: ret i32 %a
|
|
let s = Struct1(a);
|
|
s
|
|
}
|
|
|
|
pub struct Struct2Asc(i16, i64);
|
|
|
|
// bit32-LABEL: void @make_struct_2_asc({{.*}} sret({{[^,]*}}) {{.*}} %s,
|
|
// bit64-LABEL: { i64, i16 } @make_struct_2_asc(
|
|
// CHECK-SAME: i16{{.*}} %a, i64 noundef %b)
|
|
#[no_mangle]
|
|
pub fn make_struct_2_asc(a: i16, b: i64) -> Struct2Asc {
|
|
// CHECK-NOT: alloca
|
|
// bit32: %[[GEP:.+]] = getelementptr inbounds i8, ptr %s, i32 8
|
|
// bit32: store i16 %a, ptr %[[GEP]]
|
|
// bit32: store i64 %b, ptr %s
|
|
// bit64: %[[TEMP0:.+]] = insertvalue { i64, i16 } poison, i64 %b, 0
|
|
// bit64: %[[TEMP1:.+]] = insertvalue { i64, i16 } %[[TEMP0]], i16 %a, 1
|
|
// bit64: ret { i64, i16 } %[[TEMP1]]
|
|
let s = Struct2Asc(a, b);
|
|
s
|
|
}
|
|
|
|
pub struct Struct2Desc(i64, i16);
|
|
|
|
// bit32-LABEL: void @make_struct_2_desc({{.*}} sret({{[^,]*}}) {{.*}} %s,
|
|
// bit64-LABEL: { i64, i16 } @make_struct_2_desc(
|
|
// CHECK-SAME: i64 noundef %a, i16{{.*}} %b)
|
|
#[no_mangle]
|
|
pub fn make_struct_2_desc(a: i64, b: i16) -> Struct2Desc {
|
|
// CHECK-NOT: alloca
|
|
// bit32: store i64 %a, ptr %s
|
|
// bit32: %[[GEP:.+]] = getelementptr inbounds i8, ptr %s, i32 8
|
|
// bit32: store i16 %b, ptr %[[GEP]]
|
|
// bit64: %[[TEMP0:.+]] = insertvalue { i64, i16 } poison, i64 %a, 0
|
|
// bit64: %[[TEMP1:.+]] = insertvalue { i64, i16 } %[[TEMP0]], i16 %b, 1
|
|
// bit64: ret { i64, i16 } %[[TEMP1]]
|
|
let s = Struct2Desc(a, b);
|
|
s
|
|
}
|