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* Substantially revise how clang computes the visibility of a declaration toJohn McCall2010-10-221-65/+10
| | | | | | | | more closely parallel the computation of linkage. This gets us to a state much closer to what gcc emits, modulo bugs, which will undoubtedly arise in abundance. llvm-svn: 117147
* This patch implements Next's IRGen for -fconstant-string-class=class-name.Fariborz Jahanian2010-10-191-10/+21
| | | | | | PR6056, //rdar: //8564463 llvm-svn: 116819
* Experimental TBAA support for enum types.Dan Gohman2010-10-151-1/+2
| | | | llvm-svn: 116613
* Don't leak the TBAA object.Dan Gohman2010-10-151-0/+1
| | | | llvm-svn: 116595
* Experimental TBAA support.Dan Gohman2010-10-141-0/+17
| | | | | | | This enables metadata generation by default, however the TBAA pass in the optimizer is still disabled for now. llvm-svn: 116536
* lib/CodeGen/CodeGenModule.cpp: DLLImportLinkage should be processed also on ↵NAKAMURA Takumi2010-10-111-1/+3
| | | | | | | | declaration. It enables clang to compile Mingw's headers. llvm-svn: 116184
* Add support for attribute((naked)), patch by Zoxc on cfe-commits!Daniel Dunbar2010-09-291-0/+3
| | | | | | - Minor style tweaks by me. llvm-svn: 115056
* Kill FunctionDecl's IsCopyAssignment bit; it duplicated what couldDouglas Gregor2010-09-271-1/+1
| | | | | | | | already be determined by isCopyAssignmentOperator(), and was set too late in the process for all clients to see the appropriate value. Cleanup only; no functionality change. llvm-svn: 114916
* Opportunistically use the C++ personality function in ObjC++John McCall2010-09-161-0/+2
| | | | | | translation units that don't catch ObjC types. rdar://problem/8434851 llvm-svn: 114070
* get rid of a warning.Fariborz Jahanian2010-09-071-3/+3
| | | | llvm-svn: 113256
* Have Sema check for validity of CGString literalFariborz Jahanian2010-09-071-9/+0
| | | | | | instead of asserting in IRGen. Fixes radar 8390459. llvm-svn: 113253
* Teach IR generation to return 'this' from constructors and destructorsJohn McCall2010-08-311-7/+8
| | | | | | under the ARM ABI. llvm-svn: 112588
* De-memberify the VarDecl and FunctionDecl StorageClass enums.John McCall2010-08-261-2/+2
| | | | | | This lets us remove Sema.h's dependency on Expr.h and Decl.h. llvm-svn: 112156
* Support for IRGen of synthesize bitfield ivars inFariborz Jahanian2010-08-231-1/+10
| | | | | | objc-nonfragile-abi2 (radar 7824380). llvm-svn: 111823
* Go back to asking CodeGenTypes whether a type is zero-initializable.John McCall2010-08-221-21/+15
| | | | | | | | | Make CGT defer to the ABI on all member pointer types. This requires giving CGT a handle to the ABI. It's way easier to make that work if we avoid lazily creating the ABI. Make it so. llvm-svn: 111786
* The ARM C++ ABI is sufficiently different from the Itanium C++ ABI thatJohn McCall2010-08-211-1/+5
| | | | | | | it deserves its own enumerator. Obviously the implementations should closely follow the Itanium ABI except in cases of divergence. llvm-svn: 111749
* Add some enum goodness as requested by Chris. Now instead of storing theCharles Davis2010-08-191-3/+6
| | | | | | | | | | active C++ ABI as a raw string, we store it as an enum. This should improve performance somewhat. And yes, this time, I started from a clean build directory, and all the tests passed. :) llvm-svn: 111507
* Generate Attr subclasses with TableGen.Alexis Hunt2010-08-181-9/+7
| | | | | | | | | | | | | | | | | | | | | | | | Now all classes derived from Attr are generated from TableGen. Additionally, Attr* is no longer its own linked list; SmallVectors or Attr* are used. The accompanying LLVM commit contains the updates to TableGen necessary for this. Some other notes about newly-generated attribute classes: - The constructor arguments are a SourceLocation and a Context&, followed by the attributes arguments in the order that they were defined in Attr.td - Every argument in Attr.td has an appropriate accessor named getFoo, and there are sometimes a few extra ones (such as to get the length of a variadic argument). Additionally, specific_attr_iterator has been introduced, which will iterate over an AttrVec, but only over attributes of a certain type. It can be accessed through either Decl::specific_attr_begin/end or the global functions of the same name. llvm-svn: 111455
* Convert all uses of StringLiteral::getStrData() to StringLiteral::getString()Benjamin Kramer2010-08-171-10/+6
| | | | | | and remove getStrData(). Patch by Peter Davies (with some tweaks). llvm-svn: 111229
* Just disable the hidden-visibility optimization for now by hiding it behindJohn McCall2010-08-121-1/+4
| | | | | | | | a -cc1 option. The Darwin linker complains about mixed visibility when linking gcc-built objects with clang-built objects, and the optimization isn't really that valuable. Platforms with less ornery linkers can feel free to enable this. llvm-svn: 110979
* Thread local variables aren't considered common linkage.Eric Christopher2010-08-081-1/+2
| | | | llvm-svn: 110530
* It turns out that linkers (at least, the Darwin linker) don't necessarilyJohn McCall2010-08-051-6/+13
| | | | | | | | | | | do the right thing with mixed-visibility symbols, so disable the visibility optimization where that's possible, i.e. with template classes (since it's possible that an arbitrary template might be subject to an explicit instantiation elsewhere). 447.dealII actually does this. I've put the code under an option that's currently not hooked up to anything. llvm-svn: 110374
* Implement #pragma GCC visibility.Eli Friedman2010-08-051-2/+4
| | | | llvm-svn: 110315
* Emit standard-library RTTI with external linkage, not weak_odr.John McCall2010-08-041-0/+51
| | | | | | | | | | Apply hidden visibility to most RTTI; libstdc++ does not rely on exact pointer equality for the type info (just the type info names). Apply the same optimization to RTTI that we do to vtables. Fixes PR5962. llvm-svn: 110192
* Change the name to something less terrible; suggestion by Doug. No ↵Argyrios Kyrtzidis2010-07-291-1/+1
| | | | | | functionality change. llvm-svn: 109797
* Merge PCHWriterDecl.cpp's isRequiredDecl and ↵Argyrios Kyrtzidis2010-07-291-154/+5
| | | | | | | | | | | | | | | CodeGenModule::MayDeferGeneration into a new function, DeclIsRequiredFunctionOrFileScopedVar. This is essentially a CodeGen predicate that is also needed by the PCH mechanism to determine whether a decl needs to be deserialized during PCH loading for codegen purposes. Since this logic is shared by CodeGen and the PCH mechanism, move it to the ASTContext, thus CodeGenModule's GetLinkageForFunction/GetLinkageForVariable and the GVALinkage enum is moved out of CodeGen. This fixes current (and avoids future) codegen-from-PCH bugs. llvm-svn: 109784
* we are not supposed to create an improper callsite using a CallInstr; leave ↵Gabor Greif2010-07-281-0/+1
| | | | | | a fixme mentioning the simplification when CallSite can clone itself llvm-svn: 109575
* Revert r109546, it broke linux build.Argyrios Kyrtzidis2010-07-271-60/+38
| | | | llvm-svn: 109550
* Merge PCHWriterDecl.cpp's isRequiredDecl and ↵Argyrios Kyrtzidis2010-07-271-38/+60
| | | | | | | | | | | | CodeGenModule::MayDeferGeneration into a new function, DeclIsRequiredFunctionOrFileScopedVar. This function is part of the public CodeGen interface since it's essentially a CodeGen predicate that is also needed by the PCH mechanism to determine whether a decl needs to be deserialized during PCH loading for codegen purposes. This fixes current (and avoids future) codegen-from-PCH bugs. llvm-svn: 109546
* atch for implementation of objective-c's -WselectorFariborz Jahanian2010-07-221-2/+2
| | | | | | | warning flag in clang. Little more to do for a PCH issue. Radar 6507158. llvm-svn: 109129
* IRgen: Support user defined attributes on block runtime functions.Daniel Dunbar2010-07-161-0/+55
| | | | | | | | | | | | | | | | | | - This issue here is that /usr/include/Blocks.h wants to define some of the block runtime globals as weak, depending on the target. This doesn't work in Clang because we aren't using the AST decl for these globals. - The fix is a pretty gross hack which just watches all the decls for the specific blocks globals we need to know about; if we see one we use it, otherwise we use the hand coded type. In time, I would like to clean this up by changing IRgen to ask Sema/AST for the decl, which would then be lazily loaded from the builtin table if necessary. This could be used in a whole host of places in IRgen and would get rid of a lot of grotty hand coding of LLVM IR; however, we need some extra Sema support for this as well as support for builtin global variables. llvm-svn: 108482
* IRgen: Move blocks runtime interfaces to CodeGenModule.Daniel Dunbar2010-07-161-3/+55
| | | | llvm-svn: 108481
* When deferring the emission of declarations with initializers in C++, rememberJohn McCall2010-07-151-0/+13
| | | | | | | the order they appeared in the translation unit. If they get emitted, put them in their proper order. Fixes rdar://problem/7458115 llvm-svn: 108477
* Don't suppress the emission of available_externally functions markedDouglas Gregor2010-07-151-1/+2
| | | | | | with always_inline attribute. Thanks to Howard for the tip. llvm-svn: 108469
* Reinstate the optimization suppressing available_externally functionsDouglas Gregor2010-07-131-8/+17
| | | | | | | | at -O0. The only change from the previous patch is that we don't try to generate virtual method thunks for an available_externally function. llvm-svn: 108230
* Speculatively revert r108156; it appears to be breaking self-host.Douglas Gregor2010-07-121-13/+5
| | | | llvm-svn: 108194
* Do not generate LLVM IR for available_externally function bodies atDouglas Gregor2010-07-121-5/+13
| | | | | | | | | | -O0, since we won't be using the definitions for anything anyway. For lib/System/Path.o when built in Debug+Asserts mode, this leads to a 4% improvement in compile time (and suppresses 440 function bodies). <rdar://problem/7987644> llvm-svn: 108156
* Introduce Decl::hasBody() and FunctionDecl::hasBody() and use them instead ↵Argyrios Kyrtzidis2010-07-071-2/+2
| | | | | | | | of getBody() when we are just checking the existence of a body, to avoid de-serialization of the body from PCH. Makes de-serialization of the function body even more "lazier". llvm-svn: 107768
* Provide a hook for the benefit of clients using clang IR gen as a subroutine:John McCall2010-07-061-0/+73
| | | | | | | | | | | | emit metadata associating allocas and global values with a Decl*. This feature is controlled by an option that (intentionally) cannot be enabled on the command line. To use this feature, simply set CodeGenOptions.EmitDeclMetadata = true; and then interpret the completely underspecified metadata. :) llvm-svn: 107739
* Reapply:Chris Lattner2010-06-301-0/+2
| | | | | | | | | | r107173, "fix PR7519: after thrashing around and remembering how all this stuff" r107216, "fix PR7523, which was caused by the ABI code calling ConvertType instead" This includes a fix to make ConvertTypeForMem handle the "recursive" case, and call it as such when lowering function types which have an indirect result. llvm-svn: 107310
* reduce nesting.Chris Lattner2010-06-301-23/+27
| | | | llvm-svn: 107292
* Patch to correctly mangle block helper functionsFariborz Jahanian2010-06-241-3/+4
| | | | | | | when block literal is declared inside a ctor/dtor. Fixes radr 8096995. llvm-svn: 106700
* Switch over to the new caching version of getMangledName.Anders Carlsson2010-06-221-32/+7
| | | | llvm-svn: 106549
* Add a new variant of getMangledName that caches the mangling for decls.Anders Carlsson2010-06-221-0/+35
| | | | llvm-svn: 106547
* Instantiations subject to an explicit template instantiationDouglas Gregor2010-06-211-7/+32
| | | | | | | declaration have default visibility even under -fvisibility=hidden. Fixes <rdar://problem/8109763>. llvm-svn: 106440
* Fix for PR7415: refactor CodeGenModule::MayDeferGeneration and make it lessEli Friedman2010-06-191-59/+45
| | | | | | conservative for static variables in templated classes. llvm-svn: 106385
* Move CodeGenOptions.h *back* into Frontend. This should have been done when theChandler Carruth2010-06-151-1/+1
| | | | | | dependency edge was reversed such that CodeGen depends on Frontend. llvm-svn: 106065
* Implement -fvisibility-inlines-hidden. <rdar://problem/7819834>Douglas Gregor2010-06-151-0/+7
| | | | llvm-svn: 106003
* Add an option to specify the target C++ ABI to the frontend. Use it toCharles Davis2010-06-111-2/+4
| | | | | | select either the default Itanium ABI or the new, experimental Microsoft ABI. llvm-svn: 105804
* Get rid of getMangledCXXCtorName and getMangledCXXDtorName.Anders Carlsson2010-06-091-2/+8
| | | | llvm-svn: 105673
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