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2013-05-03[ms-cxxabi] Emit non-virtual member function pointersReid Kleckner
Without any conversion, this is pretty straightforward. Most of the fields can be zeros. The order is: - field offset or pointer - nonvirtual adjustment (for MI functions) - vbptr offset (for unspecified) - virtual adjustment offset (for virtual inheritance) Differential Revision: http://llvm-reviews.chandlerc.com/D699 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180985 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-30[ms-cxxabi] Implement member pointer comparisonsReid Kleckner
Summary: Like Itanium, comparisons are basically bitwise comparisons of the two values, with an exception for null member function pointers. If two function pointers are null, only the function pointer field matters for comparison purposes. The rest of the bits can be arbitrary. We take advantage of this in isZeroInitializable(), and it may matter once we start emitting conversions. Reviewers: rjmccall CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D695 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180800 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-17Set SRet flags properly in '-cxx-abi microsoft'.Timur Iskhodzhanov
Also, - abstract out the indirect/in memory/in registers decisions into the CGCXXABI - fix handling of empty struct arguments for '-cxx-abi microsoft' - add/fix tests git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179681 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-14CodeGen support for function-local static thread_local variables withRichard Smith
non-constant constructors or non-trivial destructors. Plus bugfixes for thread_local references bound to temporaries (the temporaries themselves are lifetime-extended to become thread_local), and the corresponding case for std::initializer_list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179496 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-11[ms-cxxabi] Implement member pointer emission and dereferencingReid Kleckner
Summary: Handles all inheritance models for both data and function member pointers. Also implements isZeroInitializable() and refactors some of the null member pointer code. MSVC supports converting member pointers through virtual bases, which clang does not (yet?) support. Implementing that extension is covered by http://llvm.org/15713 Reviewers: rjmccall CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D613 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179305 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-22[ms-cxxabi] Implement member data pointers for non-dynamic classesReid Kleckner
Summary: For non-dynamic classes (no virtual bases), member data pointers are simple offsets from the base of the record. Dynamic classes use an aggregate for member data pointers and are therefore currently unsupported. Unlike Itanium, the ms ABI uses 0 to represent null for polymorphic classes. Non-polymorphic classes use -1 like Itanium, since 0 is a valid field offset. Reviewers: rjmccall CC: timurrrr, cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D558 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177753 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-20Exploit this-return of a callsite in a this-return function.Manman Ren
For constructors/desctructors that return 'this', if there exists a callsite that returns 'this' and is immediately before the return instruction, make sure we are using the return value from the callsite. We don't need to keep 'this' alive through the callsite. It also enables optimizations in the backend, such as tail call optimization. Updated from r177211. rdar://12818789 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177541 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-16revert r177211 due to its potential issuesManman Ren
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177222 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-16Exploit this-return of a callsite in a this-return function.Manman Ren
For constructors/desctructors that return 'this', if there exists a callsite that returns 'this' and is immediately before the return instruction, make sure we are using the return value from the callsite. We don't need to keep 'this' alive through the callsite. It also enables optimizations in the backend, such as tail call optimization. rdar://12818789 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177211 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-27Better support for constructors with -cxx-abi microsoft, partly fixes PR12784Timur Iskhodzhanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176186 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-15Abstract out emitting the vdtor calls and do it properly when using -cxx-abi ↵Timur Iskhodzhanov
microsoft; also fix vdtor calls for the ARM ABI git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175271 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-13Emit virtual/deleting destructors properly with -cxx-abi microsoft, PR15058Timur Iskhodzhanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175045 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-25The standard ARM C++ ABI dictates that inline functions areJohn McCall
never key functions. We did not implement that rule for the iOS ABI, which was driven by what was implemented in gcc-4.2. However, implement it now for other ARM-based platforms. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173515 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-21First step towards vftable generation with -cxx-abi microsoft PR13231Timur Iskhodzhanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173035 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Cleanup some clang code to use new type functions instead of using cast<>.Micah Villmow
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16PR13684: Emit vtable entries for deleted functions as __cxa_deleted_function.David Blaikie
This is consistent/interoperable with GCC 4.7 (& __cxa_deleted_function isn't present in 4.4 - not sure when it got added, but you'll need something with that function available for this to work). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@166069 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25When performing a ::delete of an object with a virtual destructor,John McCall
be sure to delete the complete object pointer, not the original pointer. This is necessary if the base being deleted is at a non-zero offset in the complete object. This is only required for objects with virtual destructors because deleting an object via a base-class subobject when the base does not have a virtual destructor is undefined behavior. Noticed while reviewing the last four years of cxx-abi-dev activity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164597 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25In the MS ABI, ctors return 'this'. Patch by Dmitry Sokolov.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@164592 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17[Windows] Abstract pure virtual method calls in the ABI. Fix the Windows ABI ↵Joao Matos
to forward to the correct function. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160373 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-23IRGen: Factor v-table generation into the CGCXXABI object.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159091 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Abstract the emission of global destructors into ABI-specific codeJohn McCall
and only consider using __cxa_atexit in the Itanium logic. The default logic is to use atexit(). Emit "guarded" initializers in Microsoft mode unconditionally. This is definitely not correct, but it's closer to correct than just not emitting the initializer. Based on a patch by Timur Iskhodzhanov! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155894 91177308-0d34-0410-b5e6-96231b3b80d8
2012-05-01Refactor the C++ ABI code a little bit to take advantage ofJohn McCall
what I'm going to treat as basically universal properties of array-cookie code. Implement MS array cookies on top of that. Based on a patch by Timur Iskhodzhanov! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155886 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-04ErrorUnsupported on array cookies in the MS C++ ABI code;John McCall
patch by Timur Iskhodzhanov. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@153990 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-15fix a bunch of comment typos found by codespell. Patch byChris Lattner
Luis Felipe Strano Moraes! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27Notes on dynamic array cookies in MSVC.John McCall
My thanks to chapuni for his help in investigating this. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13Move name mangling support from CodeGen to AST. In thePeter Collingbourne
process, perform a number of refactorings: - Move MiscNameMangler member functions to MangleContext - Remove GlobalDecl dependency from MangleContext - Make MangleContext abstract and move Itanium/Microsoft functionality to their own classes/files - Implement ASTContext::createMangleContext and have CodeGen use it No (intended) functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123386 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-25The -fshort-wchar option causes wchar_t to become unsigned, in addition to beingChris Lattner
16-bits in size. Implement this by splitting WChar into two enums, like we have for char. This fixes a miscompmilation of XULRunner, PR8856. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20Introduce a new type, PackExpansionType, to capture types that areDouglas Gregor
pack expansions, e.g. given template<typename... Types> struct tuple; template<typename... Types> struct tuple_of_refs { typedef tuple<Types&...> types; }; the type of the "types" typedef is a PackExpansionType whose pattern is Types&. This commit introduces support for creating pack expansions for template type arguments, as above, but not for any other kind of pack expansion, nor for any form of instantiation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122223 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Use the right calling convention when mangling names in the Microsoft C++Charles Davis
mangler. Now member functions and pointers thereof have their calling convention mangled as __thiscall if they have the default CC (even though, they technically still have the __cdecl CC). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118598 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-08Implement ARM static local initialization guards, which are more compact thanJohn McCall
Itanium guards and use a slightly different compiled-in API. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113330 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-03Add symantic support for the Pascal calling convention viaDawn Perchik
"__attribute((pascal))" or "__pascal" (and "_pascal" under -fborland-extensions). Support still needs to be added to llvm. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-31Teach IR generation to return 'this' from constructors and destructorsJohn McCall
under the ARM ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@112588 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-22Experiment with using first-class aggregates to represent member functionJohn McCall
pointers. I find the resulting code to be substantially cleaner, and it makes it very easy to use the same APIs for data member pointers (which I have conscientiously avoided here), and it avoids a plethora of potential inefficiencies due to excessive memory copying, but we'll have to see if it actually works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111776 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-18zap dead code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16Implement support for member pointers under the Microsoft C++ ABI in theCharles Davis
AST library. This also adds infrastructure for supporting multiple C++ ABIs in the AST. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Mangle Objective-C pointers and block pointers in the Microsoft C++ Mangler.Charles Davis
ObjC pointers were easy enough (as far as the ABI is concerned, they're just pointers to structs), but I had to invent a new mangling for block pointers. This is particularly worrying with the Microsoft ABI, because it is a vendor-specific ABI; extending it could come back to bite us later when MS extends it on their own (and you know they will). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107572 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Fix mangling of array dimensions in the Microsoft C++ Mangler.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Mangle member pointer types in the Microsoft C++ Mangler.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107567 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Fix mangling of function pointers in the Microsoft C++ Mangler.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-03Fix mangling of array parameters for functions in the Microsoft C++ Mangler.Charles Davis
Only actual functions get mangled correctly; I don't know how to fix it for function pointers yet. Thanks to John McCall for the hint. Also, mangle anonymous tag types. I don't have a suitable testcase yet; I have a feeling that that's going to need support for static locals, and I haven't figured out exactly how MSVC's scheme for mangling those works. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107561 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Mangle arrays in the Microsoft C++ Mangler. It's not quite finished (itCharles Davis
doesn't mangle array parameters right), but I think that should be fixed in Sema (Doug, John, what do you think?). Also, stub out the remaining mangleType() routines. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26Mangle pointer and (lvalue) reference types in the Microsoft C++ Mangler.Charles Davis
Also, fix mangling of throw specs. Turns out MSVC totally ignores throw specs when mangling names. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106937 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24Patch to correctly mangle block helper functionsFariborz Jahanian
when block literal is declared inside a ctor/dtor. Fixes radr 8096995. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106700 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18Mangle tag types (unions, structs, classes, enums) in the Microsoft C++ Mangler.Charles Davis
Also, test that static members with default visibility in a struct have the right mangling. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-17Mangle operator names in the Microsoft C++ Mangler.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106211 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-16Start mangling function types in the Microsoft C++ Mangler.Charles Davis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106081 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-14Microsoft C++ Mangler:Charles Davis
- Mangle qualifiers. - Start mangling variables' types into the name. A variable declared with a builtin type should now mangle properly. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105931 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-12Microsoft C++ Mangler:Charles Davis
- Don't mangle static variables at global scope. - Add support for mangling builtin types. This will be used later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11When mangling for the Microsoft C++ ABI, mangle variables in the globalCharles Davis
namespace, too. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105809 91177308-0d34-0410-b5e6-96231b3b80d8
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