2024-02-22 06:10:29 -06:00
|
|
|
//@ assembly-output: emit-asm
|
|
|
|
|
//@ compile-flags: -O
|
|
|
|
|
//@ compile-flags: --target armv7-unknown-linux-gnueabihf
|
|
|
|
|
//@ compile-flags: -C target-feature=+neon
|
|
|
|
|
//@ needs-llvm-components: arm
|
2020-02-20 03:19:48 -06:00
|
|
|
|
|
|
|
|
#![feature(no_core, lang_items, rustc_attrs, repr_simd)]
|
|
|
|
|
#![crate_type = "rlib"]
|
|
|
|
|
#![no_core]
|
|
|
|
|
#![allow(asm_sub_register, non_camel_case_types)]
|
|
|
|
|
|
|
|
|
|
#[rustc_builtin_macro]
|
|
|
|
|
macro_rules! asm {
|
|
|
|
|
() => {};
|
|
|
|
|
}
|
|
|
|
|
#[rustc_builtin_macro]
|
|
|
|
|
macro_rules! concat {
|
|
|
|
|
() => {};
|
|
|
|
|
}
|
|
|
|
|
#[rustc_builtin_macro]
|
|
|
|
|
macro_rules! stringify {
|
|
|
|
|
() => {};
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#[lang = "sized"]
|
|
|
|
|
trait Sized {}
|
|
|
|
|
#[lang = "copy"]
|
|
|
|
|
trait Copy {}
|
|
|
|
|
|
|
|
|
|
#[repr(simd)]
|
|
|
|
|
pub struct f32x4(f32, f32, f32, f32);
|
|
|
|
|
|
|
|
|
|
impl Copy for i32 {}
|
|
|
|
|
impl Copy for f32 {}
|
|
|
|
|
impl Copy for f64 {}
|
|
|
|
|
impl Copy for f32x4 {}
|
|
|
|
|
|
|
|
|
|
macro_rules! check {
|
|
|
|
|
($func:ident $modifier:literal $reg:ident $ty:ident $mov:literal) => {
|
|
|
|
|
// -O and extern "C" guarantee that the selected register is always r0/s0/d0/q0
|
|
|
|
|
#[no_mangle]
|
|
|
|
|
pub unsafe extern "C" fn $func() -> $ty {
|
|
|
|
|
// Hack to avoid function merging
|
|
|
|
|
extern "Rust" {
|
|
|
|
|
fn dont_merge(s: &str);
|
|
|
|
|
}
|
|
|
|
|
dont_merge(stringify!($func));
|
|
|
|
|
|
|
|
|
|
let y;
|
|
|
|
|
asm!(concat!($mov, " {0:", $modifier, "}, {0:", $modifier, "}"), out($reg) y);
|
|
|
|
|
y
|
|
|
|
|
}
|
|
|
|
|
};
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: reg:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: mov r0, r0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(reg "" reg i32 "mov");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: sreg:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f32 s0, s0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(sreg "" sreg f32 "vmov.f32");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: sreg_low16:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f32 s0, s0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(sreg_low16 "" sreg_low16 f32 "vmov.f32");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: dreg:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(dreg "" dreg f64 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: dreg_low16:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(dreg_low16 "" dreg_low16 f64 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: dreg_low8:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(dreg_low8 "" dreg_low8 f64 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vorr q0, q0, q0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg "" qreg f32x4 "vmov");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_e:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_e "e" qreg f32x4 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_f:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d1, d1
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_f "f" qreg f32x4 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low8:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vorr q0, q0, q0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low8 "" qreg_low8 f32x4 "vmov");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low8_e:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low8_e "e" qreg_low8 f32x4 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low8_f:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d1, d1
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low8_f "f" qreg_low8 f32x4 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low4:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vorr q0, q0, q0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low4 "" qreg_low4 f32x4 "vmov");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low4_e:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d0, d0
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low4_e "e" qreg_low4 f32x4 "vmov.f64");
|
|
|
|
|
|
|
|
|
|
// CHECK-LABEL: qreg_low4_f:
|
|
|
|
|
// CHECK: @APP
|
|
|
|
|
// CHECK: vmov.f64 d1, d1
|
|
|
|
|
// CHECK: @NO_APP
|
|
|
|
|
check!(qreg_low4_f "f" qreg_low4 f32x4 "vmov.f64");
|
