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* Reland r312224 - [ItaniumCXXABI] Always use linkonce_odr linkage for RTTI ↵Martin Storsjo2017-09-011-1/+3
| | | | | | | | | | | | | | | | | data on MinGW This fixes cases where dynamic classes produced RTTI data with external linkage, producing linker errors about duplicate symbols. This touches code close to what was changed in SVN r244266, but this change doesn't break the tests added in that revision. The previous version had missed to update CodeGenCXX/virt-dtor-key.cpp, which had a behaviour change only when running the testsuite on windows. Differential revision: https://reviews.llvm.org/D37327 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312306 91177308-0d34-0410-b5e6-96231b3b80d8
* type_info objects are not unnamed_addr: the ABI requires us toJohn McCall2014-02-081-1/+1
| | | | | | | | | | unique them and permits the implementation of dynamic_cast (and anything else which knows it's working with a complete class type) to compare their addresses directly. rdar://16005328 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@201020 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove the -cxx-abi command-line flag.Hans Wennborg2014-01-141-1/+1
| | | | | | | | | | | | | | | This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples, Itanium otherwise. It's no longer possible to do weird combinations. To be able to run a test with a specific ABI without constraining it to a specific triple, new substitutions are added to lit: %itanium_abi_triple and %ms_abi_triple can be used to get the current target triple adjusted to the desired ABI. For example, if the test suite is running with the i686-pc-win32 target, %itanium_abi_triple will expand to i686-pc-mingw32. Differential Revision: http://llvm-reviews.chandlerc.com/D2545 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199250 91177308-0d34-0410-b5e6-96231b3b80d8
* Prepare for using MS ABI by default for Win32: update CodeGenCXX testsHans Wennborg2013-12-131-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@197281 91177308-0d34-0410-b5e6-96231b3b80d8
* Set unnamed_addr in every type info.Rafael Espindola2011-01-111-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123293 91177308-0d34-0410-b5e6-96231b3b80d8
* Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.Daniel Dunbar2009-12-151-1/+1
| | | | | | | | | - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
* Improve linkage of RTTI data structures. Introduce ↵Anders Carlsson2009-12-111-1/+1
| | | | | | CodeGenModule::GetAddrOfRTTI which figures out the right linkage of the RTTI information for the given type and whether it should be defined or not. I will migrate clients over to GetAddrOfRTTI in subsequent commits (with tests). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91098 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix for PR5594: use EmitGlobalDefinition instead of EmitCXXDestructor so thatEli Friedman2009-11-271-0/+9
we check whether the vtable needs to be generated. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89984 91177308-0d34-0410-b5e6-96231b3b80d8
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