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comparison clang/test/CodeGenCXX/cfi-multiple-inheritance.cpp @ 150:1d019706d866

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LLVM10
author anatofuz
date Thu, 13 Feb 2020 15:10:13 +0900
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children c4bab56944e8
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147:c2174574ed3a 150:1d019706d866
1 // Test that correct vtable ptr and type metadata are passed to llvm.type.test
2 // Related to Bugzilla 43390.
3
4 // RUN: %clang_cc1 -triple x86_64-unknown-linux -fvisibility hidden -std=c++11 -fsanitize=cfi-nvcall -emit-llvm -o - %s | FileCheck %s
5
6 class A1 {
7 public:
8 virtual int f1() = 0;
9 };
10
11 class A2 {
12 public:
13 virtual int f2() = 0;
14 };
15
16
17 class B : public A1, public A2 {
18 public:
19 int f2() final { return 1; }
20 int f1() final { return 2; }
21 };
22
23 // CHECK-LABEL: define hidden i32 @_Z3foov
24 int foo() {
25 B b;
26 return static_cast<A2*>(&b)->f2();
27 // CHECK: [[P:%[^ ]*]] = bitcast %class.B* %b to i8**
28 // CHECK: [[V:%[^ ]*]] = load i8*, i8** [[P]], align 8
29 // CHECK: call i1 @llvm.type.test(i8* [[V]], metadata !"_ZTS1B")
30 // CHECK: call i1 @llvm.type.test(i8* [[V]], metadata !"all-vtables")
31 }