File: arm-atomics-m0.c

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (35 lines) | stat: -rw-r--r-- 1,054 bytes parent folder | download | duplicates (29)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
// RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv6m-none--eabi -target-cpu cortex-m0 | FileCheck %s

int i;
long long l;

typedef enum memory_order {
  memory_order_relaxed, memory_order_consume, memory_order_acquire,
  memory_order_release, memory_order_acq_rel, memory_order_seq_cst
} memory_order;

void test_presence(void)
{
  // CHECK-LABEL: @test_presence
  // CHECK: __atomic_fetch_add_4
  __atomic_fetch_add(&i, 1, memory_order_seq_cst);
  // CHECK: __atomic_fetch_sub_4
  __atomic_fetch_sub(&i, 1, memory_order_seq_cst);
  // CHECK: __atomic_load_4
  int r;
  __atomic_load(&i, &r, memory_order_seq_cst);
  // CHECK: __atomic_store_4
  r = 0;
  __atomic_store(&i, &r, memory_order_seq_cst);

  // CHECK: __atomic_fetch_add_8
  __atomic_fetch_add(&l, 1, memory_order_seq_cst);
  // CHECK: __atomic_fetch_sub_8
  __atomic_fetch_sub(&l, 1, memory_order_seq_cst);
  // CHECK: __atomic_load_8
  long long rl;
  __atomic_load(&l, &rl, memory_order_seq_cst);
  // CHECK: __atomic_store_8
  rl = 0;
  __atomic_store(&l, &rl, memory_order_seq_cst);
}