e54d92b0f1
Previously, we would always emit them with internal linkage, but with hidden visibility when the function was hidden, which is an illegal combination, which could lead LLVM to actually emit them as strong hidden symbols with hilarious results. rdar://16265084 llvm-svn: 203503
179 lines
5.4 KiB
C++
179 lines
5.4 KiB
C++
// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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// RUN: %clang_cc1 %s -I%S -triple=x86_64-apple-darwin10 -fvisibility hidden -emit-llvm -o - | FileCheck -check-prefix=CHECK-WITH-HIDDEN %s
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#include <typeinfo>
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// CHECK-WITH-HIDDEN: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
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// CHECK-WITH-HIDDEN: @_ZTSPK2T4 = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTS2T4 = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTI2T4 = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTIPK2T4 = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTSZ2t5vE1A = internal constant
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// CHECK-WITH-HIDDEN: @_ZTIZ2t5vE1A = internal constant
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// CHECK-WITH-HIDDEN: @_ZTSPZ2t7vE1A = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTSZ2t7vE1A = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTIZ2t7vE1A = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTIPZ2t7vE1A = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTSZ2t6vE1A = linkonce_odr hidden constant
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// CHECK-WITH-HIDDEN: @_ZTIZ2t6vE1A = linkonce_odr hidden constant
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// CHECK: _ZTSP1C = internal constant
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// CHECK: _ZTS1C = internal constant
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// CHECK: _ZTI1C = internal constant
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// CHECK: _ZTIP1C = internal constant
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// CHECK: _ZTSPP1C = internal constant
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// CHECK: _ZTIPP1C = internal constant
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// CHECK: _ZTSM1Ci = internal constant
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// CHECK: _ZTIM1Ci = internal constant
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// CHECK: _ZTSPM1Ci = internal constant
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// CHECK: _ZTIPM1Ci = internal constant
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// CHECK: _ZTSM1CS_ = internal constant
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// CHECK: _ZTIM1CS_ = internal constant
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// CHECK: _ZTSM1CPS_ = internal constant
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// CHECK: _ZTIM1CPS_ = internal constant
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// CHECK: _ZTSM1A1C = internal constant
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// CHECK: _ZTS1A = linkonce_odr constant
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// CHECK: _ZTI1A = linkonce_odr constant
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// CHECK: _ZTIM1A1C = internal constant
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// CHECK: _ZTSM1AP1C = internal constant
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// CHECK: _ZTIM1AP1C = internal constant
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// CHECK: _ZTSN12_GLOBAL__N_11DE = internal constant
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// CHECK: _ZTIN12_GLOBAL__N_11DE = internal constant
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// CHECK: _ZTSPN12_GLOBAL__N_11DE = internal constant
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// CHECK: _ZTIPN12_GLOBAL__N_11DE = internal constant
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// CHECK: _ZTSFN12_GLOBAL__N_11DEvE = internal constant
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// CHECK: _ZTIFN12_GLOBAL__N_11DEvE = internal constant
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// CHECK: _ZTSFvN12_GLOBAL__N_11DEE = internal constant
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// CHECK: _ZTIFvN12_GLOBAL__N_11DEE = internal constant
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// CHECK: _ZTSPFvvE = linkonce_odr constant
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// CHECK: _ZTSFvvE = linkonce_odr constant
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// CHECK: _ZTIFvvE = linkonce_odr constant
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// CHECK: _ZTIPFvvE = linkonce_odr constant
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// CHECK: _ZTSN12_GLOBAL__N_11EE = internal constant
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// CHECK: _ZTIN12_GLOBAL__N_11EE = internal constant
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// CHECK: _ZTSA10_i = linkonce_odr constant
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// CHECK: _ZTIA10_i = linkonce_odr constant
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// CHECK: _ZTI1TILj0EE = linkonce_odr constant
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// CHECK: _ZTI1TILj1EE = weak_odr constant
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// CHECK: _ZTI1TILj2EE = external constant
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// CHECK: _ZTSZ2t5vE1A = internal constant
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// CHECK: _ZTIZ2t5vE1A = internal constant
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// CHECK: _ZTS1B = constant
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// CHECK: _ZTI1B = constant
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// CHECK: _ZTS1F = linkonce_odr constant
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// CHECK: _ZTSPZ2t7vE1A = linkonce_odr constant
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// CHECK: _ZTSZ2t7vE1A = linkonce_odr constant
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// CHECK: _ZTIZ2t7vE1A = linkonce_odr constant
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// CHECK: _ZTIPZ2t7vE1A = linkonce_odr constant
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// CHECK: _ZTSZ2t6vE1A = linkonce_odr constant
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// CHECK: _ZTIZ2t6vE1A = linkonce_odr constant
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// CHECK: _ZTIN12_GLOBAL__N_11DE to
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// A has no key function, so its RTTI data should be linkonce_odr.
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struct A { };
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// B has a key function defined in the translation unit, so the RTTI data should
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// be emitted in this translation unit and have external linkage.
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struct B : A {
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virtual void f();
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};
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void B::f() { }
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// C is an incomplete class type, so any direct or indirect pointer types should have
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// internal linkage, as should the type info for C itself.
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struct C;
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void t1() {
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(void)typeid(C*);
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(void)typeid(C**);
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(void)typeid(int C::*);
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(void)typeid(int C::**);
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(void)typeid(C C::*);
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(void)typeid(C *C::*);
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(void)typeid(C A::*);
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(void)typeid(C* A::*);
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}
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namespace {
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// D is inside an anonymous namespace, so all type information related to D should have
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// internal linkage.
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struct D { };
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// E is also inside an anonymous namespace.
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enum E { };
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};
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// F has a key function defined in the translation unit, but it is inline so the RTTI
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// data should be emitted with linkonce_odr linkage.
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struct F {
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virtual void f();
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};
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inline void F::f() { }
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const D getD();
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const std::type_info &t2() {
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(void)typeid(const D);
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(void)typeid(D *);
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(void)typeid(D (*)());
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(void)typeid(void (*)(D));
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(void)typeid(void (*)(D&));
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// The exception specification is not part of the RTTI descriptor, so it should not have
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// internal linkage.
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(void)typeid(void (*)() throw (D));
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(void)typeid(E);
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return typeid(getD());
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}
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namespace Arrays {
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struct A {
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static const int a[10];
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};
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const std::type_info &f() {
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return typeid(A::a);
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}
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}
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template <unsigned N> class T {
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virtual void anchor() {}
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};
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template class T<1>;
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template <> class T<2> { virtual void anchor(); };
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void t3() {
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(void) typeid(T<0>);
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(void) typeid(T<1>);
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(void) typeid(T<2>);
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}
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// rdar://problem/8778973
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struct T4 {};
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void t4(const T4 *ptr) {
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const void *value = &typeid(ptr);
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}
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// rdar://16265084
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void t5() {
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struct A {};
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const void *value = &typeid(A);
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}
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inline void t6() {
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struct A {};
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const void *value = &typeid(A);
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}
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void t6_helper() {
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t6();
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}
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inline void t7() {
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struct A {};
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const void *value = &typeid(A*);
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}
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void t7_helper() {
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t7();
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}
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