146 lines
3.2 KiB
Rust
146 lines
3.2 KiB
Rust
//@ assembly-output: emit-asm
|
|
//@ compile-flags: -O -C panic=abort
|
|
//@ compile-flags: --target aarch64-unknown-linux-gnu
|
|
//@ needs-llvm-components: aarch64
|
|
|
|
#![feature(no_core, lang_items, rustc_attrs)]
|
|
#![crate_type = "rlib"]
|
|
#![no_core]
|
|
#![allow(asm_sub_register)]
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! asm {
|
|
() => {};
|
|
}
|
|
#[rustc_builtin_macro]
|
|
macro_rules! stringify {
|
|
() => {};
|
|
}
|
|
|
|
#[lang = "sized"]
|
|
trait Sized {}
|
|
#[lang = "copy"]
|
|
trait Copy {}
|
|
|
|
impl Copy for i32 {}
|
|
|
|
macro_rules! check {
|
|
($func:ident $reg:ident $code:literal) => {
|
|
// -O and extern "C" guarantee that the selected register is always r0/s0/d0/q0
|
|
#[no_mangle]
|
|
pub unsafe extern "C" fn $func() -> i32 {
|
|
// Hack to avoid function merging
|
|
extern "Rust" {
|
|
fn dont_merge(s: &str);
|
|
}
|
|
dont_merge(stringify!($func));
|
|
|
|
let y;
|
|
asm!($code, out($reg) y);
|
|
y
|
|
}
|
|
};
|
|
}
|
|
|
|
// CHECK-LABEL: reg:
|
|
// CHECK: //APP
|
|
// CHECK: mov x0, x0
|
|
// CHECK: //NO_APP
|
|
check!(reg reg "mov {0}, {0}");
|
|
|
|
// CHECK-LABEL: reg_w:
|
|
// CHECK: //APP
|
|
// CHECK: mov w0, w0
|
|
// CHECK: //NO_APP
|
|
check!(reg_w reg "mov {0:w}, {0:w}");
|
|
|
|
// CHECK-LABEL: reg_x:
|
|
// CHECK: //APP
|
|
// CHECK: mov x0, x0
|
|
// CHECK: //NO_APP
|
|
check!(reg_x reg "mov {0:x}, {0:x}");
|
|
|
|
// CHECK-LABEL: vreg:
|
|
// CHECK: //APP
|
|
// CHECK: add v0.4s, v0.4s, v0.4s
|
|
// CHECK: //NO_APP
|
|
check!(vreg vreg "add {0}.4s, {0}.4s, {0}.4s");
|
|
|
|
// CHECK-LABEL: vreg_b:
|
|
// CHECK: //APP
|
|
// CHECK: ldr b0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_b vreg "ldr {:b}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_h:
|
|
// CHECK: //APP
|
|
// CHECK: ldr h0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_h vreg "ldr {:h}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_s:
|
|
// CHECK: //APP
|
|
// CHECK: ldr s0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_s vreg "ldr {:s}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_d:
|
|
// CHECK: //APP
|
|
// CHECK: ldr d0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_d vreg "ldr {:d}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_q:
|
|
// CHECK: //APP
|
|
// CHECK: ldr q0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_q vreg "ldr {:q}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_v:
|
|
// CHECK: //APP
|
|
// CHECK: add v0.4s, v0.4s, v0.4s
|
|
// CHECK: //NO_APP
|
|
check!(vreg_v vreg "add {0:v}.4s, {0:v}.4s, {0:v}.4s");
|
|
|
|
// CHECK-LABEL: vreg_low16:
|
|
// CHECK: //APP
|
|
// CHECK: add v0.4s, v0.4s, v0.4s
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16 vreg_low16 "add {0}.4s, {0}.4s, {0}.4s");
|
|
|
|
// CHECK-LABEL: vreg_low16_b:
|
|
// CHECK: //APP
|
|
// CHECK: ldr b0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_b vreg_low16 "ldr {:b}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_low16_h:
|
|
// CHECK: //APP
|
|
// CHECK: ldr h0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_h vreg_low16 "ldr {:h}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_low16_s:
|
|
// CHECK: //APP
|
|
// CHECK: ldr s0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_s vreg_low16 "ldr {:s}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_low16_d:
|
|
// CHECK: //APP
|
|
// CHECK: ldr d0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_d vreg_low16 "ldr {:d}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_low16_q:
|
|
// CHECK: //APP
|
|
// CHECK: ldr q0, [x0]
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_q vreg_low16 "ldr {:q}, [x0]");
|
|
|
|
// CHECK-LABEL: vreg_low16_v:
|
|
// CHECK: //APP
|
|
// CHECK: add v0.4s, v0.4s, v0.4s
|
|
// CHECK: //NO_APP
|
|
check!(vreg_low16_v vreg_low16 "add {0:v}.4s, {0:v}.4s, {0:v}.4s");
|