mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 07:14:28 +00:00
133 lines
3.3 KiB
Rust
133 lines
3.3 KiB
Rust
//@ revisions: elfv1-be elfv2-be elfv2-le
|
|
//@ assembly-output: emit-asm
|
|
//@ compile-flags: -O
|
|
//@[elfv1-be] compile-flags: --target powerpc64-unknown-linux-gnu
|
|
//@[elfv1-be] needs-llvm-components: powerpc
|
|
//@[elfv2-be] compile-flags: --target powerpc64-unknown-linux-musl
|
|
//@[elfv2-be] needs-llvm-components: powerpc
|
|
//@[elfv2-le] compile-flags: --target powerpc64le-unknown-linux-gnu
|
|
//@[elfv2-le] needs-llvm-components: powerpc
|
|
//@[elfv1-be] filecheck-flags: --check-prefix be
|
|
//@[elfv2-be] filecheck-flags: --check-prefix be
|
|
|
|
#![feature(no_core, lang_items)]
|
|
#![no_std]
|
|
#![no_core]
|
|
#![crate_type = "lib"]
|
|
|
|
#[lang = "sized"]
|
|
trait Sized {}
|
|
|
|
#[lang = "copy"]
|
|
trait Copy {}
|
|
|
|
#[lang = "freeze"]
|
|
trait Freeze {}
|
|
|
|
#[lang = "unpin"]
|
|
trait Unpin {}
|
|
|
|
impl Copy for u8 {}
|
|
impl Copy for u16 {}
|
|
impl Copy for u32 {}
|
|
impl Copy for FiveU32s {}
|
|
impl Copy for FiveU16s {}
|
|
impl Copy for ThreeU8s {}
|
|
|
|
#[repr(C)]
|
|
struct FiveU32s(u32, u32, u32, u32, u32);
|
|
|
|
#[repr(C)]
|
|
struct FiveU16s(u16, u16, u16, u16, u16);
|
|
|
|
#[repr(C)]
|
|
struct ThreeU8s(u8, u8, u8);
|
|
|
|
// CHECK-LABEL: read_large
|
|
// be: lwz [[REG1:.*]], 16(4)
|
|
// be-NEXT: stw [[REG1]], 16(3)
|
|
// be-NEXT: ld [[REG2:.*]], 8(4)
|
|
// be-NEXT: ld [[REG3:.*]], 0(4)
|
|
// be-NEXT: std [[REG2]], 8(3)
|
|
// be-NEXT: std [[REG3]], 0(3)
|
|
// elfv2-le: lxvd2x [[REG1:.*]], 0, 4
|
|
// elfv2-le-NEXT: lwz [[REG2:.*]], 16(4)
|
|
// elfv2-le-NEXT: stw [[REG2]], 16(3)
|
|
// elfv2-le-NEXT: stxvd2x [[REG1]], 0, 3
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn read_large(x: &FiveU32s) -> FiveU32s {
|
|
*x
|
|
}
|
|
|
|
// CHECK-LABEL: read_medium
|
|
// elfv1-be: lhz [[REG1:.*]], 8(4)
|
|
// elfv1-be-NEXT: ld [[REG2:.*]], 0(4)
|
|
// elfv1-be-NEXT: sth [[REG1]], 8(3)
|
|
// elfv1-be-NEXT: std [[REG2]], 0(3)
|
|
// elfv2-be: lhz [[REG1:.*]], 8(3)
|
|
// elfv2-be-NEXT: ld 3, 0(3)
|
|
// elfv2-be-NEXT: sldi 4, [[REG1]], 48
|
|
// elfv2-le: ld [[REG1:.*]], 0(3)
|
|
// elfv2-le-NEXT: lhz 4, 8(3)
|
|
// elfv2-le-NEXT: mr 3, [[REG1]]
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn read_medium(x: &FiveU16s) -> FiveU16s {
|
|
*x
|
|
}
|
|
|
|
// CHECK-LABEL: read_small
|
|
// elfv1-be: lbz [[REG1:.*]], 2(4)
|
|
// elfv1-be-NEXT: lhz [[REG2:.*]], 0(4)
|
|
// elfv1-be-NEXT: stb [[REG1]], 2(3)
|
|
// elfv1-be-NEXT: sth [[REG2]], 0(3)
|
|
// elfv2-be: lhz [[REG1:.*]], 0(3)
|
|
// elfv2-be-NEXT: lbz 3, 2(3)
|
|
// elfv2-be-NEXT: rldimi 3, [[REG1]], 8, 0
|
|
// elfv2-le: lbz [[REG1:.*]], 2(3)
|
|
// elfv2-le-NEXT: lhz 3, 0(3)
|
|
// elfv2-le-NEXT: rldimi 3, [[REG1]], 16, 0
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn read_small(x: &ThreeU8s) -> ThreeU8s {
|
|
*x
|
|
}
|
|
|
|
// CHECK-LABEL: write_large
|
|
// CHECK: std 3, 0(6)
|
|
// be-NEXT: rldicl [[REG1:.*]], 5, 32, 32
|
|
// CHECK-NEXT: std 4, 8(6)
|
|
// be-NEXT: stw [[REG1]], 16(6)
|
|
// elfv2-le-NEXT: stw 5, 16(6)
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn write_large(x: FiveU32s, dest: &mut FiveU32s) {
|
|
*dest = x;
|
|
}
|
|
|
|
// CHECK-LABEL: write_medium
|
|
// CHECK: std 3, 0(5)
|
|
// be-NEXT: rldicl [[REG1:.*]], 4, 16, 48
|
|
// be-NEXT: sth [[REG1]], 8(5)
|
|
// elfv2-le-NEXT: sth 4, 8(5)
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn write_medium(x: FiveU16s, dest: &mut FiveU16s) {
|
|
*dest = x;
|
|
}
|
|
|
|
// CHECK-LABEL: write_small
|
|
// be: stb 3, 2(4)
|
|
// be-NEXT: srwi [[REG1:.*]], 3, 8
|
|
// be-NEXT: sth [[REG1]], 0(4)
|
|
// The order these instructions are emitted in changed in LLVM 18.
|
|
// elfv2-le-DAG: sth 3, 0(4)
|
|
// elfv2-le-DAG: srwi [[REG1:.*]], 3, 16
|
|
// elfv2-le-NEXT: stb [[REG1]], 2(4)
|
|
// CHECK-NEXT: blr
|
|
#[no_mangle]
|
|
extern "C" fn write_small(x: ThreeU8s, dest: &mut ThreeU8s) {
|
|
*dest = x;
|
|
}
|