| 1 | // RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fcxx-exceptions -fexceptions -O0 %s -emit-llvm -o - | FileCheck %s |
| 2 | |
| 3 | extern "C" int printf(const char *, ...); |
| 4 | |
| 5 | static int N; |
| 6 | struct S { |
| 7 | S() |
| 8 | __attribute__((nothrow)) { printf("%d: S()\n", ++N); } |
| 9 | ~S() __attribute__((nothrow)) { printf("%d: ~S()\n", N--); } |
| 10 | int n[17]; |
| 11 | }; |
| 12 | // CHECK: [[struct_S:%.+]] = type { [17 x i32] } |
| 13 | void print(int n, int a, int b, int c, int d) { |
| 14 | printf("n=%d\n,sizeof(S)=%d\nsizeof(array_t[0][0])=%d\nsizeof(array_t[0])=%d\nsizeof(array_t)=%d\n", |
| 15 | n, a, b, c, d); |
| 16 | if (n == 2) |
| 17 | throw(n); |
| 18 | } |
| 19 | |
| 20 | void test(int n) { |
| 21 | // CHECK: define void {{.*test.*}}(i32 [[n:%.+]]) # |
| 22 | // CHECK: [[n_addr:%.+]] = alloca |
| 23 | // CHECK-NEXT: [[saved_stack:%.+]] = alloca |
| 24 | // CHECK-NEXT: [[vla_expr:%.+]] = alloca i64, align 8 |
| 25 | // CHECK-NEXT: [[vla_expr1:%.+]] = alloca i64, align 8 |
| 26 | // CHECK-NEXT: [[sizeof_S:%.+]] = alloca |
| 27 | // CHECK-NEXT: [[sizeof_array_t_0_0:%.+]] = alloca |
| 28 | // CHECK-NEXT: [[sizeof_array_t_0:%.+]] = alloca |
| 29 | // CHECK-NEXT: [[sizeof_array_t:%.+]] = alloca |
| 30 | // CHECK-NEXT: [[exn_slot:%.+]] = alloca i8* |
| 31 | // CHECK-NEXT: [[ehselector_slot:%.+]] = alloca i32 |
| 32 | // CHECK-NEXT: store i32 [[n]], i32* [[n_addr]] |
| 33 | // CHECK-NEXT: [[t0:%.+]] = load i32, i32* [[n_addr]] |
| 34 | // CHECK-NEXT: [[t1:%.+]] = zext i32 [[t0]] to i64 |
| 35 | // CHECK-NEXT: [[t2:%.+]] = load i32, i32* [[n_addr]] |
| 36 | // CHECK-NEXT: [[add:%.+]] = add nsw i32 [[t2]], 1 |
| 37 | // CHECK-NEXT: [[t3:%.+]] = zext i32 [[add]] to i64 |
| 38 | // CHECK-NEXT: [[t4:%.+]] = call i8* @llvm.stacksave() |
| 39 | // CHECK-NEXT: store i8* [[t4]], i8** [[saved_stack]] |
| 40 | // CHECK-NEXT: [[t5:%.+]] = mul nuw i64 [[t1]], [[t3]] |
| 41 | // CHECK-NEXT: [[vla:%.+]] = alloca [[struct_S]], i64 [[t5]] |
| 42 | // CHECK-NEXT: store i64 [[t1]], i64* [[vla_expr]] |
| 43 | // CHECK-NEXT: store i64 [[t3]], i64* [[vla_expr1]] |
| 44 | // CHECK-NEXT: [[t6:%.+]] = mul nuw i64 [[t1]], [[t3]] |
| 45 | // CHECK-NEXT: [[isempty:%.+]] = icmp eq i64 [[t6]], 0 |
| 46 | // CHECK-NEXT: br i1 [[isempty]], label %[[arrayctor_cont:.+]], label %[[new_ctorloop:.+]] |
| 47 | |
| 48 | S array_t[n][n + 1]; |
| 49 | |
| 50 | // CHECK: [[new_ctorloop]] |
| 51 | // CHECK-NEXT: [[arrayctor_end:%.+]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[vla]], i64 [[t6]] |
| 52 | // CHECK-NEXT: br label %[[arrayctor_loop:.+]] |
| 53 | |
| 54 | // CHECK: [[arrayctor_loop]] |
| 55 | // CHECK-NEXT: [[arrayctor_cur:%.+]] = phi [[struct_S]]* [ [[vla]], %[[new_ctorloop]] ], [ [[arrayctor_next:%.+]], %[[arrayctor_loop]] ] |
| 56 | // CHECK-NEXT: call void [[ctor:@.+]]([[struct_S]]* [[arrayctor_cur]]) |
| 57 | // CHECK-NEXT: [[arrayctor_next]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[arrayctor_cur]], i64 1 |
| 58 | // CHECK-NEXT: [[arrayctor_done:%.+]] = icmp eq [[struct_S]]* [[arrayctor_next]], [[arrayctor_end]] |
| 59 | // CHECK-NEXT: br i1 [[arrayctor_done]], label %[[arrayctor_cont]], label %[[arrayctor_loop]] |
| 60 | |
| 61 | int sizeof_S = sizeof(S); |
| 62 | int sizeof_array_t_0_0 = sizeof(array_t[0][0]); |
| 63 | int sizeof_array_t_0 = sizeof(array_t[0]); |
| 64 | int sizeof_array_t = sizeof(array_t); |
| 65 | print(n, sizeof_S, sizeof_array_t_0_0, sizeof_array_t_0, sizeof_array_t); |
| 66 | |
| 67 | // CHECK: [[arrayctor_cont]] |
| 68 | // CHECK-NEXT: store i32 68, i32* [[sizeof_S]] |
| 69 | // CHECK-NEXT: store i32 68, i32* [[sizeof_array_t_0_0]] |
| 70 | // CHECK: [[t8:%.+]] = mul nuw i64 68, [[t3]] |
| 71 | // CHECK-NEXT: [[conv:%.+]] = trunc i64 [[t8]] to i32 |
| 72 | // CHECK-NEXT: store i32 [[conv]], i32* [[sizeof_array_t_0]] |
| 73 | // CHECK-NEXT: [[t9:%.+]] = mul nuw i64 [[t1]], [[t3]] |
| 74 | // CHECK-NEXT: [[t10:%.+]] = mul nuw i64 68, [[t9]] |
| 75 | // CHECK-NEXT: [[conv1:%.+]] = trunc i64 [[t10]] to i32 |
| 76 | // CHECK-NEXT: store i32 [[conv1]], i32* [[sizeof_array_t]] |
| 77 | // CHECK-NEXT: [[t11:%.+]] = load i32, i32* [[n_addr:%.+]] |
| 78 | // CHECK-NEXT: [[t12:%.+]] = load i32, i32* [[sizeof_S]] |
| 79 | // CHECK-NEXT: [[t13:%.+]] = load i32, i32* [[sizeof_array_t_0_0]] |
| 80 | // CHECK-NEXT: [[t14:%.+]] = load i32, i32* [[sizeof_array_t_0]] |
| 81 | // CHECK-NEXT: [[t15:%.+]] = load i32, i32* [[sizeof_array_t]] |
| 82 | // CHECK-NEXT: invoke void @{{.*print.*}}(i32 [[t11]], i32 [[t12]], i32 [[t13]], i32 [[t14]], i32 [[t15]]) |
| 83 | // CHECK-NEXT: to label %[[invoke_cont:.+]] unwind label %[[lpad:.+]] |
| 84 | |
| 85 | // CHECK: [[invoke_cont]] |
| 86 | // CHECK-NEXT: [[t16:%.+]] = mul nuw i64 [[t1]], [[t3]] |
| 87 | // CHECK-NEXT: [[t17:%.+]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[vla]], i64 [[t16]] |
| 88 | // CHECK-NEXT: [[arraydestroy_isempty:%.+]] = icmp eq [[struct_S]]* [[vla]], [[t17]] |
| 89 | // CHECK-NEXT: br i1 [[arraydestroy_isempty]], label %[[arraydestroy_done2:.+]], label %[[arraydestroy_body:.+]] |
| 90 | |
| 91 | // CHECK: [[arraydestroy_body]] |
| 92 | // CHECK-NEXT: [[arraydestroy_elementPast:%.+]] = phi [[struct_S]]* [ [[t17]], %[[invoke_cont]] ], [ [[arraydestroy_element:%.+]], %[[arraydestroy_body]] ] |
| 93 | // CHECK-NEXT: [[arraydestroy_element]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[arraydestroy_elementPast]] |
| 94 | // CHECK-NEXT: call void @[[dtor:.+]]([[struct_S]]* [[arraydestroy_element]]) |
| 95 | // CHECK-NEXT: [[arraydestroy_done:%.+]] = icmp eq [[struct_S]]* [[arraydestroy_element]], [[vla]] |
| 96 | // CHECK-NEXT: br i1 [[arraydestroy_done]], label %[[arraydestroy_done2]], label %[[arraydestroy_body]] |
| 97 | |
| 98 | // CHECK: [[arraydestroy_done2]] |
| 99 | // CHECK-NEXT: [[t17:%.+]] = load i8*, i8** [[saved_stack]] |
| 100 | // CHECK-NEXT: call void @llvm.stackrestore(i8* [[t17]]) |
| 101 | // CHECK: ret void |
| 102 | |
| 103 | // CHECK: [[lpad]] |
| 104 | // CHECK-NEXT: [[t19:%.+]] = landingpad { i8*, i32 } |
| 105 | // CHECK: [[t20:%.+]] = extractvalue { i8*, i32 } [[t19]], 0 |
| 106 | // CHECK-NEXT: store i8* [[t20]], i8** [[exn_slot]] |
| 107 | // CHECK-NEXT: [[t21:%.+]] = extractvalue { i8*, i32 } [[t19]], 1 |
| 108 | // CHECK-NEXT: store i32 [[t21]], i32* [[ehselector_slot]] |
| 109 | // CHECK-NEXT: [[t22:%.+]] = mul nuw i64 [[t1]], [[t3]] |
| 110 | // CHECK-NEXT: [[t23:%.+]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[vla]], i64 [[t22]] |
| 111 | // CHECK-NEXT: [[arraydestroy_isempty3:%.+]] = icmp eq [[struct_S]]* [[vla]], [[t23]] |
| 112 | // CHECK-NEXT: br i1 [[arraydestroy_isempty3]], label %[[arraydestroy_done8:.+]], label %[[arraydestroy_body4:.+]] |
| 113 | |
| 114 | // CHECK: [[arraydestroy_body4]] |
| 115 | // CHECK: [[arraydestroy_elementPast5:%.+]] = phi [[struct_S]]* [ [[t23]], %[[lpad]] ], [ [[arraydestroy_element6:.+]], %[[arraydestroy_body4]] ] |
| 116 | // CHECK-NEXT: [[arraydestroy_element6]] = getelementptr inbounds [[struct_S]], [[struct_S]]* [[arraydestroy_elementPast5]], i64 -1 |
| 117 | // CHECK-NEXT: call void @[[dtor]]([[struct_S]]* [[arraydestroy_element6]]) |
| 118 | // CHECK-NEXT: [[arraydestroy_done7:%.+]] = icmp eq [[struct_S]]* [[arraydestroy_element6]], [[vla]] |
| 119 | // CHECK-NEXT: br i1 [[arraydestroy_done7]], label %[[arraydestroy_done8]], label %[[arraydestroy_body4]] |
| 120 | |
| 121 | // CHECK: [[arraydestroy_done8]] |
| 122 | // CHECK-NEXT: br label %[[eh_resume:.+]] |
| 123 | |
| 124 | // CHECK: [[eh_resume]] |
| 125 | // CHECK-NEXT: [[exn:%.+]] = load i8*, i8** [[exn_slot]] |
| 126 | // CHECK-NEXT: [[sel:%.+]] = load i32, i32* [[ehselector_slot]] |
| 127 | // CHECK-NEXT: [[lpad_val:%.+]] = insertvalue { i8*, i32 } undef, i8* [[exn]], 0 |
| 128 | // CHECK-NEXT: [[lpad_val9:%.+]] = insertvalue { i8*, i32 } [[lpad_val]], i32 [[sel]], 1 |
| 129 | // CHECK-NEXT: resume { i8*, i32 } [[lpad_val9]] |
| 130 | } |
| 131 | |
| 132 | int main() { |
| 133 | try { |
| 134 | test(2); |
| 135 | } catch (int e) { |
| 136 | printf("expeption %d\n", e); |
| 137 | } |
| 138 | try { |
| 139 | test(3); |
| 140 | } catch (int e) { |
| 141 | printf("expeption %d", e); |
| 142 | } |
| 143 | } |
| 144 | |