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git.proxmox.com Git - rustc.git/blob - src/test/codegen/intrinsics/volatile.rs
1 // compile-flags: -C no-prepopulate-passes
4 #![feature(core_intrinsics)]
8 // CHECK-LABEL: @volatile_copy_memory
10 pub unsafe fn volatile_copy_memory(a
: *mut u8, b
: *const u8) {
11 // CHECK: llvm.memmove.p0i8.p0i8.{{\w*(.*true)}}
12 intrinsics
::volatile_copy_memory(a
, b
, 1)
15 // CHECK-LABEL: @volatile_copy_nonoverlapping_memory
17 pub unsafe fn volatile_copy_nonoverlapping_memory(a
: *mut u8, b
: *const u8) {
18 // CHECK: llvm.memcpy.p0i8.p0i8.{{\w*(.*true)}}
19 intrinsics
::volatile_copy_nonoverlapping_memory(a
, b
, 1)
22 // CHECK-LABEL: @volatile_set_memory
24 pub unsafe fn volatile_set_memory(a
: *mut u8, b
: u8) {
25 // CHECK: llvm.memset.p0i8.{{\w*(.*true)}}
26 intrinsics
::volatile_set_memory(a
, b
, 1)
29 // CHECK-LABEL: @volatile_load
31 pub unsafe fn volatile_load(a
: *const u8) -> u8 {
32 // CHECK: load volatile
33 intrinsics
::volatile_load(a
)
36 // CHECK-LABEL: @volatile_store
38 pub unsafe fn volatile_store(a
: *mut u8, b
: u8) {
39 // CHECK: store volatile
40 intrinsics
::volatile_store(a
, b
)
43 // CHECK-LABEL: @unaligned_volatile_load
45 pub unsafe fn unaligned_volatile_load(a
: *const u8) -> u8 {
46 // CHECK: load volatile
47 intrinsics
::unaligned_volatile_load(a
)
50 // CHECK-LABEL: @unaligned_volatile_store
52 pub unsafe fn unaligned_volatile_store(a
: *mut u8, b
: u8) {
53 // CHECK: store volatile
54 intrinsics
::unaligned_volatile_store(a
, b
)