| // revisions: s390x |
| // assembly-output: emit-asm |
| //[s390x] compile-flags: --target s390x-unknown-linux-gnu |
| //[s390x] needs-llvm-components: systemz |
| |
| #![feature(no_core, lang_items, rustc_attrs, repr_simd, asm_experimental_arch)] |
| #![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 {} |
| |
| type ptr = *const i32; |
| |
| impl Copy for i8 {} |
| impl Copy for u8 {} |
| impl Copy for i16 {} |
| impl Copy for i32 {} |
| impl Copy for i64 {} |
| impl Copy for f32 {} |
| impl Copy for f64 {} |
| impl Copy for ptr {} |
| |
| extern "C" { |
| fn extern_func(); |
| static extern_static: u8; |
| } |
| |
| // Hack to avoid function merging |
| extern "Rust" { |
| fn dont_merge(s: &str); |
| } |
| |
| macro_rules! check { ($func:ident, $ty:ty, $class:ident, $mov:literal) => { |
| #[no_mangle] |
| pub unsafe fn $func(x: $ty) -> $ty { |
| dont_merge(stringify!($func)); |
| |
| let y; |
| asm!(concat!($mov," {}, {}"), out($class) y, in($class) x); |
| y |
| } |
| };} |
| |
| macro_rules! check_reg { ($func:ident, $ty:ty, $reg:tt, $mov:literal) => { |
| #[no_mangle] |
| pub unsafe fn $func(x: $ty) -> $ty { |
| dont_merge(stringify!($func)); |
| |
| let y; |
| asm!(concat!($mov, " %", $reg, ", %", $reg), lateout($reg) y, in($reg) x); |
| y |
| } |
| };} |
| |
| // CHECK-LABEL: sym_fn_32: |
| // CHECK: #APP |
| // CHECK: brasl %r14, extern_func |
| // CHECK: #NO_APP |
| #[cfg(s390x)] |
| #[no_mangle] |
| pub unsafe fn sym_fn_32() { |
| asm!("brasl %r14, {}", sym extern_func); |
| } |
| |
| // CHECK-LABEL: sym_static: |
| // CHECK: #APP |
| // CHECK: brasl %r14, extern_static |
| // CHECK: #NO_APP |
| #[no_mangle] |
| pub unsafe fn sym_static() { |
| asm!("brasl %r14, {}", sym extern_static); |
| } |
| |
| // CHECK-LABEL: reg_i8: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i8, i8, reg, "lgr"); |
| |
| // CHECK-LABEL: reg_i16: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i16, i16, reg, "lgr"); |
| |
| // CHECK-LABEL: reg_i32: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i32, i32, reg, "lgr"); |
| |
| // CHECK-LABEL: reg_i64: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i64, i64, reg, "lgr"); |
| |
| // CHECK-LABEL: reg_i8_addr: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i8_addr, i8, reg_addr, "lgr"); |
| |
| // CHECK-LABEL: reg_i16_addr: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i16_addr, i16, reg_addr, "lgr"); |
| |
| // CHECK-LABEL: reg_i32_addr: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i32_addr, i32, reg_addr, "lgr"); |
| |
| // CHECK-LABEL: reg_i64_addr: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_i64_addr, i64, reg_addr, "lgr"); |
| |
| // CHECK-LABEL: reg_f32: |
| // CHECK: #APP |
| // CHECK: ler %f{{[0-9]+}}, %f{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_f32, f32, freg, "ler"); |
| |
| // CHECK-LABEL: reg_f64: |
| // CHECK: #APP |
| // CHECK: ldr %f{{[0-9]+}}, %f{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_f64, f64, freg, "ldr"); |
| |
| // CHECK-LABEL: reg_ptr: |
| // CHECK: #APP |
| // CHECK: lgr %r{{[0-9]+}}, %r{{[0-9]+}} |
| // CHECK: #NO_APP |
| check!(reg_ptr, ptr, reg, "lgr"); |
| |
| // CHECK-LABEL: r0_i8: |
| // CHECK: #APP |
| // CHECK: lr %r0, %r0 |
| // CHECK: #NO_APP |
| check_reg!(r0_i8, i8, "r0", "lr"); |
| |
| // CHECK-LABEL: r0_i16: |
| // CHECK: #APP |
| // CHECK: lr %r0, %r0 |
| // CHECK: #NO_APP |
| check_reg!(r0_i16, i16, "r0", "lr"); |
| |
| // CHECK-LABEL: r0_i32: |
| // CHECK: #APP |
| // CHECK: lr %r0, %r0 |
| // CHECK: #NO_APP |
| check_reg!(r0_i32, i32, "r0", "lr"); |
| |
| // CHECK-LABEL: r0_i64: |
| // CHECK: #APP |
| // CHECK: lr %r0, %r0 |
| // CHECK: #NO_APP |
| check_reg!(r0_i64, i64, "r0", "lr"); |
| |
| // CHECK-LABEL: f0_f32: |
| // CHECK: #APP |
| // CHECK: ler %f0, %f0 |
| // CHECK: #NO_APP |
| check_reg!(f0_f32, f32, "f0", "ler"); |
| |
| // CHECK-LABEL: f0_f64: |
| // CHECK: #APP |
| // CHECK: ldr %f0, %f0 |
| // CHECK: #NO_APP |
| check_reg!(f0_f64, f64, "f0", "ldr"); |