From 011274a28238f524397923213db6e6514358d05f Mon Sep 17 00:00:00 2001 From: Dmitry Mikulin Date: Tue, 15 Oct 2019 16:32:50 +0000 Subject: CFI: wrong type passed to llvm.type.test with multiple inheritance devirtualization. Differential Revision: https://reviews.llvm.org/D67985 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@374909 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/cfi/multiple-inheritance2.cpp | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 test/cfi/multiple-inheritance2.cpp diff --git a/test/cfi/multiple-inheritance2.cpp b/test/cfi/multiple-inheritance2.cpp new file mode 100644 index 000000000..f6b38452e --- /dev/null +++ b/test/cfi/multiple-inheritance2.cpp @@ -0,0 +1,38 @@ +// Test that virtual functions of the derived class can be called through +// pointers of both base classes without CFI errors. +// Related to Bugzilla 43390. + +// RUN: %clangxx_cfi -o %t1 %s +// RUN: %run %t1 2>&1 | FileCheck --check-prefix=CFI %s + +// CFI: In f1 +// CFI: In f2 +// CFI-NOT: control flow integrity check + +// REQUIRES: cxxabi + +#include + +class A1 { +public: + virtual void f1() = 0; +}; + +class A2 { +public: + virtual void f2() = 0; +}; + + +class B : public A1, public A2 { +public: + void f2() final { fprintf(stderr, "In f2\n"); } + void f1() final { fprintf(stderr, "In f1\n"); } +}; + +int main() { + B b; + + static_cast(&b)->f1(); + static_cast(&b)->f2(); +} -- cgit v1.2.1