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llvm-project/clang/test/CodeGenCXX/microsoft-no-rtti-data.cpp

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Driver: Handle /GR- in a compatible way with MSVC There are slight differences between /GR- and -fno-rtti which made mapping one to the other inappropriate. -fno-rtti disables dynamic_cast, typeid, and does not emit RTTI related information for the v-table. /GR- does not generate complete object locators and thus will not reference them in vftables. However, constructs like dynamic_cast and typeid are permitted. This should bring our implementation of RTTI up to semantic parity with MSVC modulo bugs. llvm-svn: 212138
2014-07-02 06:24:56 +08:00
// RUN: %clang_cc1 %s -fno-rtti-data -triple=i386-pc-win32 -o - -emit-llvm | FileCheck %s
// vftable shouldn't have RTTI data in it.
[MS] Don't escape MS C++ names with \01 It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738
2018-03-17 04:36:49 +08:00
// CHECK-NOT: @"??_R4S@@6B@"
// CHECK: @"??_7S@@6B@" = linkonce_odr unnamed_addr constant { [1 x i8*] } { [1 x i8*] [i8* bitcast ({{.*}} @"??_GS@@UAEPAXI@Z" to i8*)] }, comdat
Driver: Handle /GR- in a compatible way with MSVC There are slight differences between /GR- and -fno-rtti which made mapping one to the other inappropriate. -fno-rtti disables dynamic_cast, typeid, and does not emit RTTI related information for the v-table. /GR- does not generate complete object locators and thus will not reference them in vftables. However, constructs like dynamic_cast and typeid are permitted. This should bring our implementation of RTTI up to semantic parity with MSVC modulo bugs. llvm-svn: 212138
2014-07-02 06:24:56 +08:00
struct type_info;
namespace std { using ::type_info; }
struct S {
virtual ~S();
} s;
struct U : S {
virtual ~U();
};
extern S *getS();
const std::type_info &ti = typeid(*getS());
const U &u = dynamic_cast<U &>(*getS());
[MS] Don't escape MS C++ names with \01 It is not needed after LLVM r327734. Now it will be easier to copy-paste IR symbol names from Clang. llvm-svn: 327738
2018-03-17 04:36:49 +08:00
// CHECK: call i8* @__RTDynamicCast(i8* %{{.+}}, i32 0, i8* bitcast ({{.*}} @"??_R0?AUS@@@8" to i8*), i8* bitcast ({{.*}} @"??_R0?AUU@@@8" to i8*), i32 1)