File: cfi-multiple-inheritance.cpp

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (30 lines) | stat: -rw-r--r-- 767 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
// Test that correct vtable ptr and type metadata are passed to llvm.type.test
// Related to Bugzilla 43390.

// RUN: %clang_cc1 -triple x86_64-unknown-linux -fvisibility=hidden -std=c++11 -fsanitize=cfi-nvcall -emit-llvm -o - %s | FileCheck %s

class A1 {
public:
    virtual int f1() = 0;
};

class A2 {
public:
    virtual int f2() = 0;
};


class B : public A1, public A2 {
public:
    int f2() final { return 1; }
    int f1() final { return 2; }
};

// CHECK-LABEL: define hidden noundef i32 @_Z3foov
int foo() {
    B b;
    return static_cast<A2*>(&b)->f2();
    // CHECK: [[V:%[^ ]*]] = load ptr, ptr %b, align 8
    // CHECK: call i1 @llvm.type.test(ptr [[V]], metadata !"_ZTS1B")
    // CHECK: call i1 @llvm.type.test(ptr [[V]], metadata !"all-vtables")
}