File: virtual-function-calls.cpp

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-11
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,418,840 kB
  • sloc: cpp: 5,290,826; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,898; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,913; xml: 953; cs: 573; fortran: 539
file content (56 lines) | stat: -rw-r--r-- 1,041 bytes parent folder | download | duplicates (29) 
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
// RUN: %clang_cc1 %s -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 %s -triple %itanium_abi_triple -std=c++11 -emit-llvm -o - -fstrict-vtable-pointers -O1 | FileCheck --check-prefix=CHECK-INVARIANT %s

// PR5021
namespace PR5021 {

struct A {
  virtual void f(char);
};

void f(A *a) {
  // CHECK: call {{.*}}void %
  a->f('c');
}

struct B : virtual A { 
  virtual void f();
};

void f(B * b) {
  b->f();
}

}

namespace Test1 {
  struct A { 
    virtual ~A(); 
  };

  struct B : A {
    virtual ~B();
    virtual void f();
  };

  void f(B *b) {
    b->f();
  }
}

namespace VirtualNoreturn {
  struct A {
    [[noreturn]] virtual void f();
  };

  // CHECK-LABEL: @_ZN15VirtualNoreturn1f
  // CHECK-INVARIANT-LABEL: define {{(dso_local )?}}void @_ZN15VirtualNoreturn1f
  void f(A *p) {
    p->f();
    // CHECK: call {{.*}}void %{{[^#]*$}}
    // CHECK-NOT: unreachable
    // CHECK-INVARIANT: load {{.*}} !invariant.load ![[EMPTY_NODE:[0-9]+]]
  }
}

// CHECK-INVARIANT: ![[EMPTY_NODE]] = !{}