36 lines · c
1// RUN: %clang_cc1 %s -emit-llvm -o - -triple=thumbv6m-none--eabi -target-cpu cortex-m0 | FileCheck %s2 3int i;4long long l;5 6typedef enum memory_order {7 memory_order_relaxed, memory_order_consume, memory_order_acquire,8 memory_order_release, memory_order_acq_rel, memory_order_seq_cst9} memory_order;10 11void test_presence(void)12{13 // CHECK-LABEL: @test_presence14 // CHECK: atomicrmw add ptr {{.*}} seq_cst, align 415 __atomic_fetch_add(&i, 1, memory_order_seq_cst);16 // CHECK: atomicrmw sub {{.*}} seq_cst, align 417 __atomic_fetch_sub(&i, 1, memory_order_seq_cst);18 // CHECK: load atomic i32, ptr {{.*}} seq_cst, align 419 int r;20 __atomic_load(&i, &r, memory_order_seq_cst);21 // CHECK: store atomic i32 {{.*}}, ptr {{.*}} seq_cst, align 422 r = 0;23 __atomic_store(&i, &r, memory_order_seq_cst);24 25 // CHECK: atomicrmw add {{.*}} seq_cst, align 826 __atomic_fetch_add(&l, 1, memory_order_seq_cst);27 // CHECK: atomicrmw sub {{.*}} seq_cst, align 828 __atomic_fetch_sub(&l, 1, memory_order_seq_cst);29 // CHECK: load atomic i64, ptr {{.*}} seq_cst, align 830 long long rl;31 __atomic_load(&l, &rl, memory_order_seq_cst);32 // CHECK: store atomic i64 {{.*}}, ptr {{.*}} seq_cst, align 833 rl = 0;34 __atomic_store(&l, &rl, memory_order_seq_cst);35}36