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2010-06-22Switch over to the new caching version of getMangledName.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-15Move CodeGenOptions.h *back* into Frontend. This should have been done when theChandler Carruth
dependency edge was reversed such that CodeGen depends on Frontend. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106065 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09Get rid of getMangledCXXCtorName and getMangledCXXDtorName.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-09More mangling cleanup.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105672 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-30Fix for PR7040: Don't try to compute the LLVM type for a function where itEli Friedman
isn't possible to compute. This patch is mostly refactoring; the key change is the addition of the code starting with the comment, "Check whether the function has a computable LLVM signature." The solution here is essentially the same as the way the vtable code handles such functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105151 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25IRgen: Add a stub class for generating ABI-specific C++ code.Charles Davis
This class only supports name mangling (which is apparently used during C/ObjC codegen). For now only the Itanium C++ ABI is supported. Patches to add a second C++ ABI are forthcoming. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25Improve name mangling for blocks and support mangling of static localDouglas Gregor
variables within blocks. We loosely follow GCC's mangling, but since these are always internal symbols the names don't really matter. I intend to revisit block mangling later, because GCC's mangling is rather verbose. <rdar://problem/8015719>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-25If a function definition has any sort of weak linkage, its static localJohn McCall
variables should have that linkage. Otherwise, its static local variables should have internal linkage. To avoid computing this excessively, set a function's linkage before we emit code for it. Previously we were assigning weak linkage to the static variables of static inline functions in C++, with predictably terrible results. This fixes that and also gives better linkage than 'weak' when merging is required. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104581 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-17Vtable -> VTable renames across the board.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101666 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-30Remove the old vtable layout code.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Remove old thunks code.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99374 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Use the canonical destructor, which fixes the self-host build. Thanks to Eli ↵Anders Carlsson
for noticing. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99260 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Always emit associated thunks when emitting the function itself. Remove ↵Anders Carlsson
getVtableAddressPoint, it's not used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99252 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Rename CGVtableInfo to CodeGenVTables in preparation of adding another ↵Anders Carlsson
VTableInfo class. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99250 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19Change CodeGenModule to rely on the Module's symbol table instead ofJohn McCall
shadowing it in the GlobalDeclMap. Eliminates the string-uniquing requirement for mangled names, which should help C++ codegen times a little. Forces us to do string lookups instead of pointer lookups, which might hurt codegen times a little across the board. We'll see how it plays out. Removing the string-uniquing requirement implicitly fixes any bugs like PR6635 which arose from the fact that we had multiple uniquing tables for different kinds of identifiers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99012 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Use static method in GlobalValueRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97872 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Don't produce an alias for a destructor if the target is weak.Rafael Espindola
This fixes bootstrap on ELF systems :-) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97773 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Don't emit derived-to-base destructor aliases if we don't have a definitionJohn McCall
for the base destructor, because aliases to declarations aren't legal. Fixes PR 6471. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97637 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-24Fix an iterator-invalidation bug that was causing selfhost errorsJohn McCall
on non-darwin platforms. Fixes PR6411. Test case doesn't reduce, unfortunately. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97055 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-23Perform two more constructor/destructor code-size optimizations:John McCall
1) emit base destructors as aliases to their unique base class destructors under some careful conditions. This is enabled for the same targets that can support complete-to-base aliases, i.e. not darwin. 2) Emit non-variadic complete constructors for classes with no virtual bases as calls to the base constructor. This is enabled on all targets and in theory can trigger in situations that the alias optimization can't (mostly involving virtual bases, mostly not yet supported). These are bundled together because I didn't think it worthwhile to split them, not because they really need to be. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-19Re-introduce the ctor/dtor alias optimization, this time hidden behind aJohn McCall
command-line option which defaults off. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96649 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-18Revert the ctor/dtor alias optimization for now; the buildbots can detectJohn McCall
some failure here that I can't. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96612 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-17Emit complete constructors and destructors as aliases to base constructorsJohn McCall
and destructors when the two entities are semantically identical, i.e. when the class has no virtual base classes. We only do this for linkage types for which aliases are supported, i.e. internal and external, i.e. not linkonce. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16IRgen optimization: cache the value of 'this' and 'vtt' instead ofJohn McCall
repeatedly reloading from an alloca. We still need to create the alloca for debug info purposes (although we currently create it in all cases because of some abstraction boundaries that're hard to break down). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@96403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-05Standardize the parsing of function type attributes in a way thatJohn McCall
follows (as conservatively as possible) gcc's current behavior: attributes written on return types that don't apply there are applied to the function instead, etc. Only parse CC attributes as type attributes, not as decl attributes; don't accepet noreturn as a decl attribute on ValueDecls, either (it still needs to apply to other decls, like blocks). Consistently consume CC/noreturn information throughout codegen; enforce this by removing their default values in CodeGenTypes::getFunctionInfo(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Move a few more functions away from CGCXX and to CGClass and CGExprCXX.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-27Add a sanity assertion so that we don't silently generate bad code; I'll fileEli Friedman
a bug with a testcase hitting this assertion in a moment. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92175 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-27Fix obvious mistake.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92172 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Make copy constructor elimination work in more cases; the case in questionEli Friedman
here affects clang-on-clang. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92151 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Move a bunch of class related functions to CGClass.cpp, no functionality change.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92148 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Pass the return value slot to all call exprs.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Fill in the return value slot in CGExprAgg::VisitCallExpr. This takes us ↵Anders Carlsson
halfway towards fixing PR5824. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Pass ReturnValueSlot to EmitCall. No functionality change yet.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-24Add a ReturnValueSlot class. Change the argument order in EmitCall to match ↵Anders Carlsson
the other overload better. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92136 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-22Eliminate the ASTContext argument to CXXConstructorDecl::isCopyConstructor, ↵Douglas Gregor
since the context is available in the Decl git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Work in progress for setting the vtable pointers for all bases correctly inEli Friedman
the constructor. This doesn't handle cases requiring the VTT at the moment, and generates unnecessary stores, but I think it's essentially correct. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Fix for PR5830: fix the computation of the offset to a virtual base.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18CK_UserDefinedConversion is a valid kind when doing copy ctor elision.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Address some of Anders commentsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-18Switch the initialization required by return statements over to theDouglas Gregor
new InitializationSequence. This fixes some bugs (e.g., PR5808), changed some diagnostics, and caused more churn than expected. What's new: - InitializationSequence now has a "C conversion sequence" category and step kind, which falls back to - Changed the diagnostics for returns to always have the result type of the function first and the type of the expression second. CheckSingleAssignmentConstraints to peform checking in C. - Improved ASTs for initialization of return values. The ASTs now capture all of the temporaries we need to create, but intentionally do not bind the tempoary that is actually returned, so that it won't get destroyed twice. - Make sure to perform an (elidable!) copy of the class object that is returned from a class. - Fix copy elision in CodeGen to properly see through the subexpressions that occur with elidable copies. - Give "new" its own entity kind; as with return values and thrown objects, we don't bind the expression so we don't call a destructor for it. Note that, with this patch, I've broken returning move-only types in C++0x. We'll fix it later, when we tackle NRVO. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91669 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-16When value-initializing a class with no user-defined constructors butDouglas Gregor
with a non-trivial default constructor, zero-initialize the storage and then call the default constructor. Fixes PR5800. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91548 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Don't force the emission of destructor definitions.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13More array cookie improvements.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91247 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-11Random string-related cleanups.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91119 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-10Get rid of static variable.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91041 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-10Move more decl related functions to CGDeclCXX.cppAnders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91012 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-10Add CGDeclCXX.cpp and move EmitCXXGlobalVarDeclInit there.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91006 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-10Fix spacing.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91000 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08Build fix.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90841 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-08Fix for PR5707: make sure implicit copy constructors initialize the vtableEli Friedman
pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90840 91177308-0d34-0410-b5e6-96231b3b80d8
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