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llvm-project/clang/test/CodeGenCXX/cfi-ms-rtti.cpp

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Move vtable type metadata emission behind a cc1-level flag. In ThinLTO mode, type metadata will require the module to be written as a multi-module bitcode file, which is currently incompatible with the Darwin linker. It is also useful to be able to enable or disable multi-module bitcode for testing purposes. This introduces a cc1-level flag, -f{,no-}lto-unit, which is used by the driver to enable multi-module bitcode on all but Darwin+ThinLTO, and can also be used to enable/disable the feature manually. Differential Revision: https://reviews.llvm.org/D28877 llvm-svn: 292448
2017-01-19 07:55:27 +08:00
// RUN: %clang_cc1 -flto -flto-unit -emit-llvm -o - -triple=x86_64-pc-win32 %s -fsanitize=cfi-vcall | FileCheck --check-prefix=RTTI %s
// RUN: %clang_cc1 -flto -flto-unit -emit-llvm -o - -triple=x86_64-pc-win32 %s -fsanitize=cfi-vcall -fno-rtti-data | FileCheck --check-prefix=NO-RTTI %s
CFI: Emit correct bit set information if RTTI is disabled under MS ABI. We were previously creating bit set entries at virtual table offset sizeof(void*) unconditionally under the Microsoft C++ ABI. This is incorrect if RTTI data is disabled; in that case the "address point" is at offset 0. This change modifies bit set emission to take into account whether RTTI data is being emitted. Also make a start on a blacklisting scheme for records. Differential Revision: http://reviews.llvm.org/D11048 llvm-svn: 241845
2015-07-10 03:56:14 +08:00
struct A {
A();
virtual void f() {}
};
A::A() {}
CodeGen: Update Clang to use the new type metadata. Differential Revision: http://reviews.llvm.org/D21054 llvm-svn: 273730
2016-06-25 05:21:46 +08:00
// RTTI: !{i64 8, !"?AUA@@"}
// NO-RTTI: !{i64 0, !"?AUA@@"}