| // RUN: %clang_cc1 -triple x86_64-unknown-linux -O0 -fsanitize-cfi-cross-dso \ |
| // RUN: -fsanitize=cfi-icall,cfi-nvcall,cfi-vcall,cfi-unrelated-cast,cfi-derived-cast \ |
| // RUN: -fsanitize-trap=cfi-icall,cfi-nvcall -fsanitize-recover=cfi-vcall,cfi-unrelated-cast \ |
| // RUN: -emit-llvm -o - %s | FileCheck %s |
| |
| void caller(void (*f)(void)) { |
| f(); |
| } |
| |
| // CHECK: define weak_odr hidden void @__cfi_check_fail(ptr noundef %0, ptr noundef %1) |
| // CHECK: store ptr %0, ptr %[[ALLOCA0:.*]], align 8 |
| // CHECK: store ptr %1, ptr %[[ALLOCA1:.*]], align 8 |
| // CHECK: %[[DATA:.*]] = load ptr, ptr %[[ALLOCA0]], align 8 |
| // CHECK: %[[ADDR:.*]] = load ptr, ptr %[[ALLOCA1]], align 8 |
| // CHECK: %[[ICMP_NOT_NULL:.*]] = icmp ne ptr %[[DATA]], null |
| // CHECK: br i1 %[[ICMP_NOT_NULL]], label %[[CONT0:.*]], label %[[TRAP:.*]], !prof |
| |
| // CHECK: [[TRAP]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT0]]: |
| // CHECK: %[[KINDPTR:.*]] = getelementptr {{.*}} %[[DATA]], i32 0, i32 0 |
| // CHECK: %[[KIND:.*]] = load i8, ptr %[[KINDPTR]], align 4 |
| // CHECK: %[[VTVALID0:.*]] = call i1 @llvm.type.test(ptr %[[ADDR]], metadata !"all-vtables") |
| // CHECK: %[[VTVALID:.*]] = zext i1 %[[VTVALID0]] to i64 |
| // CHECK: %[[NOT_0:.*]] = icmp ne i8 %[[KIND]], 0 |
| // CHECK: br i1 %[[NOT_0]], label %[[CONT1:.*]], label %[[HANDLE0:.*]], !prof |
| |
| // CHECK: [[HANDLE0]]: |
| // CHECK: %[[DATA0:.*]] = ptrtoint ptr %[[DATA]] to i64, |
| // CHECK: %[[ADDR0:.*]] = ptrtoint ptr %[[ADDR]] to i64, |
| // CHECK: call void @__ubsan_handle_cfi_check_fail(i64 %[[DATA0]], i64 %[[ADDR0]], i64 %[[VTVALID]]) |
| // CHECK: br label %[[CONT1]] |
| |
| // CHECK: [[CONT1]]: |
| // CHECK: %[[NOT_1:.*]] = icmp ne i8 %[[KIND]], 1 |
| // CHECK: br i1 %[[NOT_1]], label %[[CONT2:.*]], label %[[HANDLE1:.*]], !prof !{{[0-9]+}}, !nosanitize |
| |
| // CHECK: [[HANDLE1]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT2]]: |
| // CHECK: %[[NOT_2:.*]] = icmp ne i8 %[[KIND]], 2 |
| // CHECK: br i1 %[[NOT_2]], label %[[CONT3:.*]], label %[[HANDLE2:.*]], !prof |
| |
| // CHECK: [[HANDLE2]]: |
| // CHECK: %[[DATA2:.*]] = ptrtoint ptr %[[DATA]] to i64, |
| // CHECK: %[[ADDR2:.*]] = ptrtoint ptr %[[ADDR]] to i64, |
| // CHECK: call void @__ubsan_handle_cfi_check_fail_abort(i64 %[[DATA2]], i64 %[[ADDR2]], i64 %[[VTVALID]]) |
| // CHECK: unreachable |
| |
| // CHECK: [[CONT3]]: |
| // CHECK: %[[NOT_3:.*]] = icmp ne i8 %[[KIND]], 3 |
| // CHECK: br i1 %[[NOT_3]], label %[[CONT4:.*]], label %[[HANDLE3:.*]], !prof |
| |
| // CHECK: [[HANDLE3]]: |
| // CHECK: %[[DATA3:.*]] = ptrtoint ptr %[[DATA]] to i64, |
| // CHECK: %[[ADDR3:.*]] = ptrtoint ptr %[[ADDR]] to i64, |
| // CHECK: call void @__ubsan_handle_cfi_check_fail(i64 %[[DATA3]], i64 %[[ADDR3]], i64 %[[VTVALID]]) |
| // CHECK: br label %[[CONT4]] |
| |
| // CHECK: [[CONT4]]: |
| // CHECK: %[[NOT_4:.*]] = icmp ne i8 %[[KIND]], 4 |
| // CHECK: br i1 %[[NOT_4]], label %[[CONT5:.*]], label %[[HANDLE4:.*]], !prof !{{[0-9]+}}, !nosanitize |
| |
| // CHECK: [[HANDLE4]]: |
| // CHECK-NEXT: call void @llvm.ubsantrap(i8 2) |
| // CHECK-NEXT: unreachable |
| |
| // CHECK: [[CONT5]]: |
| // CHECK: ret void |
| |
| // CHECK: define weak void @__cfi_check(i64 noundef %[[TYPE:.*]], ptr noundef %[[ADDR:.*]], ptr noundef %[[DATA:.*]]){{.*}} align 4096 |
| // CHECK-NOT: } |
| // CHECK: call void @__cfi_check_fail(ptr %[[DATA]], ptr %[[ADDR]]) |
| // CHECK-NEXT: ret void |
