diff options
Diffstat (limited to 'test/CodeGen/atomic-ops.c')
| -rw-r--r-- | test/CodeGen/atomic-ops.c | 47 |
1 files changed, 37 insertions, 10 deletions
diff --git a/test/CodeGen/atomic-ops.c b/test/CodeGen/atomic-ops.c index 500939f6fd75a..c3a9729d49010 100644 --- a/test/CodeGen/atomic-ops.c +++ b/test/CodeGen/atomic-ops.c @@ -198,10 +198,12 @@ struct S implicit_load(_Atomic(struct S) *a) { struct S fd1(struct S *a) { // CHECK-LABEL: @fd1 // CHECK: [[RETVAL:%.*]] = alloca %struct.S, align 4 - // CHECK: bitcast %struct.S* {{.*}} to i64* + // CHECK: [[A:%.*]] = bitcast %struct.S* {{.*}} to i64* // CHECK: [[CAST:%.*]] = bitcast %struct.S* [[RETVAL]] to i64* - // CHECK: [[CALL:%.*]] = call i64 @__atomic_load_8( - // CHECK: store i64 [[CALL]], i64* [[CAST]], align 4 + // CHECK: [[SRC:%.*]] = bitcast i64* [[A]] to i8* + // CHECK: [[DEST:%.*]] = bitcast i64* [[CAST]] to i8* + // CHECK: call void @__atomic_load(i32 8, i8* [[SRC]], i8* [[DEST]], i32 5) + // CHECK: ret struct S ret; __atomic_load(a, &ret, memory_order_seq_cst); return ret; @@ -218,8 +220,8 @@ void fd2(struct S *a, struct S *b) { // CHECK-NEXT: [[COERCED_A_TMP:%.*]] = bitcast %struct.S* [[LOAD_A_PTR]] to i64* // CHECK-NEXT: [[COERCED_B:%.*]] = bitcast %struct.S* [[LOAD_B_PTR]] to i64* // CHECK-NEXT: [[COERCED_A:%.*]] = bitcast i64* [[COERCED_A_TMP]] to i8* - // CHECK-NEXT: [[LOAD_B:%.*]] = load i64, i64* [[COERCED_B]], align 4 - // CHECK-NEXT: call void @__atomic_store_8(i8* [[COERCED_A]], i64 [[LOAD_B]], + // CHECK-NEXT: [[CAST_B:%.*]] = bitcast i64* [[COERCED_B]] to i8* + // CHECK-NEXT: call void @__atomic_store(i32 8, i8* [[COERCED_A]], i8* [[CAST_B]], // CHECK-NEXT: ret void __atomic_store(a, b, memory_order_seq_cst); } @@ -239,9 +241,9 @@ void fd3(struct S *a, struct S *b, struct S *c) { // CHECK-NEXT: [[COERCED_B:%.*]] = bitcast %struct.S* [[LOAD_B_PTR]] to i64* // CHECK-NEXT: [[COERCED_C:%.*]] = bitcast %struct.S* [[LOAD_C_PTR]] to i64* // CHECK-NEXT: [[COERCED_A:%.*]] = bitcast i64* [[COERCED_A_TMP]] to i8* - // CHECK-NEXT: [[LOAD_B:%.*]] = load i64, i64* [[COERCED_B]], align 4 - // CHECK-NEXT: [[CALL:%.*]] = call i64 @__atomic_exchange_8(i8* [[COERCED_A]], i64 [[LOAD_B]], - // CHECK-NEXT: store i64 [[CALL]], i64* [[COERCED_C]], align 4 + // CHECK-NEXT: [[CAST_B:%.*]] = bitcast i64* [[COERCED_B]] to i8* + // CHECK-NEXT: [[CAST_C:%.*]] = bitcast i64* [[COERCED_C]] to i8* + // CHECK-NEXT: call void @__atomic_exchange(i32 8, i8* [[COERCED_A]], i8* [[CAST_B]], i8* [[CAST_C]], __atomic_exchange(a, b, c, memory_order_seq_cst); } @@ -262,8 +264,8 @@ _Bool fd4(struct S *a, struct S *b, struct S *c) { // CHECK-NEXT: [[COERCED_C:%.*]] = bitcast %struct.S* [[LOAD_C_PTR]] to i64* // CHECK-NEXT: [[COERCED_A:%.*]] = bitcast i64* [[COERCED_A_TMP]] to i8* // CHECK-NEXT: [[COERCED_B:%.*]] = bitcast i64* [[COERCED_B_TMP]] to i8* - // CHECK-NEXT: [[LOAD_C:%.*]] = load i64, i64* [[COERCED_C]], align 4 - // CHECK-NEXT: [[CALL:%.*]] = call zeroext i1 @__atomic_compare_exchange_8(i8* [[COERCED_A]], i8* [[COERCED_B]], i64 [[LOAD_C]] + // CHECK-NEXT: [[CAST_C:%.*]] = bitcast i64* [[COERCED_C]] to i8* + // CHECK-NEXT: [[CALL:%.*]] = call zeroext i1 @__atomic_compare_exchange(i32 8, i8* [[COERCED_A]], i8* [[COERCED_B]], i8* [[CAST_C]], // CHECK-NEXT: ret i1 [[CALL]] return __atomic_compare_exchange(a, b, c, 1, 5, 5); } @@ -634,4 +636,29 @@ int PR17306_2(volatile int *i, int value) { return __atomic_add_fetch(i, value, memory_order_seq_cst); } +void test_underaligned() { + // CHECK-LABEL: @test_underaligned + struct Underaligned { char c[8]; } underaligned_a, underaligned_b, underaligned_c; + + // CHECK: call void @__atomic_load(i32 8, + __atomic_load(&underaligned_a, &underaligned_b, memory_order_seq_cst); + // CHECK: call void @__atomic_store(i32 8, + __atomic_store(&underaligned_a, &underaligned_b, memory_order_seq_cst); + // CHECK: call void @__atomic_exchange(i32 8, + __atomic_exchange(&underaligned_a, &underaligned_b, &underaligned_c, memory_order_seq_cst); + // CHECK: call {{.*}} @__atomic_compare_exchange(i32 8, + __atomic_compare_exchange(&underaligned_a, &underaligned_b, &underaligned_c, 1, memory_order_seq_cst, memory_order_seq_cst); + + __attribute__((aligned)) struct Underaligned aligned_a, aligned_b, aligned_c; + + // CHECK: load atomic + __atomic_load(&aligned_a, &aligned_b, memory_order_seq_cst); + // CHECK: store atomic + __atomic_store(&aligned_a, &aligned_b, memory_order_seq_cst); + // CHECK: atomicrmw xchg + __atomic_exchange(&aligned_a, &aligned_b, &aligned_c, memory_order_seq_cst); + // CHECK: cmpxchg weak + __atomic_compare_exchange(&aligned_a, &aligned_b, &aligned_c, 1, memory_order_seq_cst, memory_order_seq_cst); +} + #endif |