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// RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu | FileCheck %s
// RUN: %clang_cc1 %s -std=c++11 -emit-llvm -o - -triple=x86_64-linux-gnu -target-cpu core2 | FileCheck %s --check-prefix=CORE2
// Check the atomic code generation for cpu targets w/wo cx16 support.
struct alignas(8) AM8 {
int f1, f2;
};
AM8 m8;
AM8 load8() {
AM8 am;
// CHECK-LABEL: @_Z5load8v
// CHECK: load atomic i64, {{.*}} monotonic, align 8
// CORE2-LABEL: @_Z5load8v
// CORE2: load atomic i64, {{.*}} monotonic, align 8
__atomic_load(&m8, &am, 0);
return am;
}
AM8 s8;
void store8() {
// CHECK-LABEL: @_Z6store8v
// CHECK: store atomic i64 {{.*}} monotonic, align 8
// CORE2-LABEL: @_Z6store8v
// CORE2: store atomic i64 {{.*}} monotonic, align 8
__atomic_store(&m8, &s8, 0);
}
bool cmpxchg8() {
AM8 am;
// CHECK-LABEL: @_Z8cmpxchg8v
// CHECK: cmpxchg ptr {{.*}} monotonic, align 8
// CORE2-LABEL: @_Z8cmpxchg8v
// CORE2: cmpxchg ptr {{.*}} monotonic, align 8
return __atomic_compare_exchange(&m8, &s8, &am, 0, 0, 0);
}
struct alignas(16) AM16 {
long f1, f2;
};
AM16 m16;
AM16 load16() {
AM16 am;
// CHECK-LABEL: @_Z6load16v
// CHECK: call void @__atomic_load
// CORE2-LABEL: @_Z6load16v
// CORE2: load atomic i128, {{.*}} monotonic, align 16
__atomic_load(&m16, &am, 0);
return am;
}
AM16 s16;
void store16() {
// CHECK-LABEL: @_Z7store16v
// CHECK: call void @__atomic_store
// CORE2-LABEL: @_Z7store16v
// CORE2: store atomic i128 {{.*}} monotonic, align 16
__atomic_store(&m16, &s16, 0);
}
bool cmpxchg16() {
AM16 am;
// CHECK-LABEL: @_Z9cmpxchg16v
// CHECK: call noundef zeroext i1 @__atomic_compare_exchange
// CORE2-LABEL: @_Z9cmpxchg16v
// CORE2: cmpxchg ptr {{.*}} monotonic monotonic, align 16
return __atomic_compare_exchange(&m16, &s16, &am, 0, 0, 0);
}
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