| // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility hidden -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-mfcall -fsanitize-trap=cfi-mfcall -fvisibility default -emit-llvm -o - %s | FileCheck --check-prefix=DEFAULT %s |
| // With -fwhole-program-vtables we should get the member function pointer type |
| // test, even without hidden visibility. |
| // RUN: %clang_cc1 -triple x86_64-unknown-linux -fwhole-program-vtables -emit-llvm -o - %s | FileCheck %s --check-prefix=WPV |
| |
| struct B1 {}; |
| struct B2 {}; |
| struct B3 : B2 {}; |
| struct S : B1, B3 {}; |
| |
| // DEFAULT-NOT: llvm.type.test |
| |
| void f(S *s, void (S::*p)()) { |
| // WPV: [[OFFSET:%.*]] = sub i64 {{.*}}, 1 |
| // WPV: [[VFPTR:%.*]] = getelementptr i8, i8* %{{.*}}, i64 [[OFFSET]] |
| // WPV: [[TT:%.*]] = call i1 @llvm.type.test(i8* [[VFPTR]], metadata !"_ZTSM1SFvvE.virtual") |
| // CHECK: [[OFFSET:%.*]] = sub i64 {{.*}}, 1 |
| // CHECK: [[VFPTR:%.*]] = getelementptr i8, i8* %{{.*}}, i64 [[OFFSET]] |
| // CHECK: [[TT:%.*]] = call i1 @llvm.type.test(i8* [[VFPTR]], metadata !"_ZTSM1SFvvE.virtual") |
| // CHECK: br i1 [[TT]], label {{.*}}, label %[[TRAP1:[^,]*]] |
| |
| // CHECK: [[TRAP1]]: |
| // CHECK-NEXT: llvm.ubsantrap |
| |
| // CHECK: [[NVFPTR:%.*]] = bitcast void (%struct.S*)* {{.*}} to i8* |
| // CHECK: [[TT1:%.*]] = call i1 @llvm.type.test(i8* [[NVFPTR]], metadata !"_ZTSM2B1FvvE") |
| // CHECK: [[OR1:%.*]] = or i1 false, [[TT1]] |
| // CHECK: [[TT2:%.*]] = call i1 @llvm.type.test(i8* [[NVFPTR]], metadata !"_ZTSM2B2FvvE") |
| // CHECK: [[OR2:%.*]] = or i1 [[OR1]], [[TT2]] |
| // CHECK: br i1 [[OR2]], label {{.*}}, label %[[TRAP2:[^,]*]] |
| |
| // CHECK: [[TRAP2]]: |
| // CHECK-NEXT: llvm.ubsantrap |
| (s->*p)(); |
| } |
