// RUN: %clang_cc1 -triple aarch64-linux-gnu %s -emit-llvm -o /dev/null -verify typedef struct { int a, b; } IntPair; typedef struct { long long a; } LongStruct; typedef int __attribute__((aligned(1))) unaligned_int; void func(IntPair *p) { IntPair res; __atomic_load(p, &res, 0); // expected-warning {{misaligned or large atomic operation may incur significant performance penalty}} __atomic_store(p, &res, 0); // expected-warning {{misaligned or large atomic operation may incur significant performance penalty}} __atomic_fetch_add((unaligned_int *)p, 1, 2); // expected-warning {{misaligned or large atomic operation may incur significant performance penalty}} __atomic_fetch_sub((unaligned_int *)p, 1, 3); // expected-warning {{misaligned or large atomic operation may incur significant performance penalty}} } void func1(LongStruct *p) { LongStruct res; __atomic_load(p, &res, 0); __atomic_store(p, &res, 0); __atomic_fetch_add((int *)p, 1, 2); __atomic_fetch_sub((int *)p, 1, 3); } |