mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-31 04:57:19 +00:00
56 lines
1.4 KiB
Rust
56 lines
1.4 KiB
Rust
//@ compile-flags: -C no-prepopulate-passes
|
|
|
|
#![crate_type = "lib"]
|
|
#![feature(core_intrinsics)]
|
|
|
|
use std::intrinsics;
|
|
|
|
// CHECK-LABEL: @volatile_copy_memory
|
|
#[no_mangle]
|
|
pub unsafe fn volatile_copy_memory(a: *mut u8, b: *const u8) {
|
|
// CHECK: llvm.memmove.{{\w*(.*true)}}
|
|
intrinsics::volatile_copy_memory(a, b, 1)
|
|
}
|
|
|
|
// CHECK-LABEL: @volatile_copy_nonoverlapping_memory
|
|
#[no_mangle]
|
|
pub unsafe fn volatile_copy_nonoverlapping_memory(a: *mut u8, b: *const u8) {
|
|
// CHECK: llvm.memcpy.{{\w*(.*true)}}
|
|
intrinsics::volatile_copy_nonoverlapping_memory(a, b, 1)
|
|
}
|
|
|
|
// CHECK-LABEL: @volatile_set_memory
|
|
#[no_mangle]
|
|
pub unsafe fn volatile_set_memory(a: *mut u8, b: u8) {
|
|
// CHECK: llvm.memset.{{\w*(.*true)}}
|
|
intrinsics::volatile_set_memory(a, b, 1)
|
|
}
|
|
|
|
// CHECK-LABEL: @volatile_load
|
|
#[no_mangle]
|
|
pub unsafe fn volatile_load(a: *const u8) -> u8 {
|
|
// CHECK: load volatile
|
|
intrinsics::volatile_load(a)
|
|
}
|
|
|
|
// CHECK-LABEL: @volatile_store
|
|
#[no_mangle]
|
|
pub unsafe fn volatile_store(a: *mut u8, b: u8) {
|
|
// CHECK: store volatile
|
|
intrinsics::volatile_store(a, b)
|
|
}
|
|
|
|
// CHECK-LABEL: @unaligned_volatile_load
|
|
#[no_mangle]
|
|
pub unsafe fn unaligned_volatile_load(a: *const u8) -> u8 {
|
|
// CHECK: load volatile
|
|
intrinsics::unaligned_volatile_load(a)
|
|
}
|
|
|
|
// CHECK-LABEL: @unaligned_volatile_store
|
|
#[no_mangle]
|
|
pub unsafe fn unaligned_volatile_store(a: *mut u8, b: u8) {
|
|
// CHECK: store volatile
|
|
intrinsics::unaligned_volatile_store(a, b)
|
|
}
|