Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/ext/attr-ifunc-5.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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// PR c/81854 - weak alias of an incompatible symbol accepted // { dg-do compile } // { dg-require-ifunc "" } */ // { dg-options "-Wextra -Wno-pmf-conversions" } struct Klass { int implementation (); int good_magic (); int iffy_magic (); const char* bad_magic (); typedef int (Func)(Klass*); typedef int (Klass::*MemFuncPtr)(); static Func* good_resolver (); static void* iffy_resolver (); static MemFuncPtr bad_resolver (); }; int Klass::implementation (void) { return 0; } // Verify no warning for the expected/compatible declaration. int __attribute__ ((ifunc ("_ZN5Klass13good_resolverEv"))) Klass::good_magic (); Klass::Func* Klass::good_resolver (void) { MemFuncPtr mfp = &Klass::implementation; return reinterpret_cast<Func*>(mfp); } // Verify a warning for the unsafe declaration. int __attribute__ ((ifunc ("_ZN5Klass13iffy_resolverEv"))) Klass::iffy_magic (); // { dg-message "resolver indirect function declared here" } void* Klass::iffy_resolver (void) // { dg-warning ".ifunc. resolver for .int Klass::iffy_magic\\(\\). should return .int \\(\\*\\)\\(Klass\\*\\)." } { MemFuncPtr mfp = &Klass::implementation; return reinterpret_cast<void*>(mfp); } // Verify an error for an incompatible declaration. const char* __attribute__ ((ifunc ("_ZN5Klass12bad_resolverEv"))) Klass::bad_magic (); // { dg-message "resolver indirect function declared here" } Klass::MemFuncPtr Klass::bad_resolver (void) // { dg-error ".ifunc. resolver for .const char\\* Klass::bad_magic\\(\\). must return .const char\\* \\(\\*\\)\\(Klass\\*\\)." } { return &Klass::implementation; }