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6bb63002fc
In #99726, `-fptrauth-type-info-vtable-pointer-discrimination` was introduced, which is intended to enable type and address discrimination for type_info vtable pointers. However, some codegen logic for actually enabling address discrimination was missing. This patch addresses the issue. Fixes #101716
106 lines
2.8 KiB
C++
106 lines
2.8 KiB
C++
// REQUIRES: !system-windows
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// RUN: rm -rf %t
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// RUN: split-file %s %t
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// RUN: cd %t
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//
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -emit-module-interface \
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// RUN: %t/Mod.cppm -o %t/Mod.pcm
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//
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 %t/Mod.pcm \
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// RUN: -emit-llvm -o - | FileCheck %t/Mod.cppm
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -fmodule-file=Mod=%t/Mod.pcm \
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// RUN: %t/Use.cpp -emit-llvm -o - | FileCheck %t/Use.cpp
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//
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -emit-module-interface \
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// RUN: %t/Mod.cppm -o %t/Mod.pcm -DKEY_FUNCTION_INLINE
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//
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 %t/Mod.pcm \
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// RUN: -emit-llvm -o - | FileCheck %t/Mod.cppm -check-prefix=CHECK-INLINE
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -fmodule-file=Mod=%t/Mod.pcm \
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// RUN: %t/Use.cpp -emit-llvm -o - | FileCheck %t/Use.cpp -check-prefix=CHECK-INLINE
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//
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -emit-module-interface \
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// RUN: %t/M-A.cppm -o %t/M-A.pcm
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 -fmodule-file=M:A=%t/M-A.pcm \
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// RUN: %t/M-B.cppm -emit-llvm -o - | FileCheck %t/M-B.cppm
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// RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++20 \
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// RUN: %t/M-A.pcm -emit-llvm -o - | FileCheck %t/M-A.cppm
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//--- Mod.cppm
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export module Mod;
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export class Base {
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public:
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virtual ~Base();
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};
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#ifdef KEY_FUNCTION_INLINE
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inline
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#endif
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Base::~Base() {}
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// CHECK: @_ZTVW3Mod4Base = unnamed_addr constant
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// CHECK: @_ZTIW3Mod4Base = constant
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// CHECK: @_ZTSW3Mod4Base = constant
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// With the new Itanium C++ ABI, the linkage of vtables in modules don't need to be linkonce ODR.
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// CHECK-INLINE: @_ZTVW3Mod4Base = {{.*}}unnamed_addr constant
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// CHECK-INLINE: @_ZTIW3Mod4Base = {{.*}}constant
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// CHECK-INLINE: @_ZTSW3Mod4Base = {{.*}}constant
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module :private;
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int private_use() {
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Base base;
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return 43;
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}
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//--- Use.cpp
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import Mod;
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int use() {
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Base* base = new Base();
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return 43;
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}
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// CHECK-NOT: @_ZTIW3Mod4Base
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// CHECK-NOT: @_ZTSW3Mod4Base
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// CHECK: @_ZTVW3Mod4Base = external
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// CHECK-INLINE-NOT: @_ZTIW3Mod4Base
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// CHECK-INLINE-NOT: @_ZTSW3Mod4Base
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// CHECK-INLINE: @_ZTVW3Mod4Base = external
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// Check the case that the declaration of the key function comes from another
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// module unit but the definition of the key function comes from the current
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// module unit.
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//--- M-A.cppm
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export module M:A;
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export class C {
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public:
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virtual ~C();
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};
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int a_use() {
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C c;
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return 43;
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}
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// CHECK: @_ZTVW1M1C = unnamed_addr constant
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// CHECK: @_ZTIW1M1C = constant
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// CHECK: @_ZTSW1M1C = constant
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//--- M-B.cppm
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export module M:B;
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import :A;
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C::~C() {}
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int b_use() {
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C c;
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return 43;
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}
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// CHECK: @_ZTVW1M1C = external
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// CHECK-NOT: @_ZTIW1M1C
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// CHECK-NOT: @_ZTSW1M1C
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