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path: root/lib/CodeGen/CodeGenModule.cpp
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2010-08-05Implement #pragma GCC visibility.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110315 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04Emit standard-library RTTI with external linkage, not weak_odr.John McCall
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110192 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Change the name to something less terrible; suggestion by Doug. No ↵Argyrios Kyrtzidis
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29Merge PCHWriterDecl.cpp's isRequiredDecl and ↵Argyrios Kyrtzidis
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109784 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28we are not supposed to create an improper callsite using a CallInstr; leave ↵Gabor Greif
a fixme mentioning the simplification when CallSite can clone itself git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109575 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Revert r109546, it broke linux build.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109550 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27Merge PCHWriterDecl.cpp's isRequiredDecl and ↵Argyrios Kyrtzidis
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22atch for implementation of objective-c's -WselectorFariborz Jahanian
warning flag in clang. Little more to do for a PCH issue. Radar 6507158. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109129 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16IRgen: Support user defined attributes on block runtime functions.Daniel Dunbar
- 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16IRgen: Move blocks runtime interfaces to CodeGenModule.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15When deferring the emission of declarations with initializers in C++, rememberJohn McCall
the order they appeared in the translation unit. If they get emitted, put them in their proper order. Fixes rdar://problem/7458115 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108477 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15Don't suppress the emission of available_externally functions markedDouglas Gregor
with always_inline attribute. Thanks to Howard for the tip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-13Reinstate the optimization suppressing available_externally functionsDouglas Gregor
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108230 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12Speculatively revert r108156; it appears to be breaking self-host.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108194 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-12Do not generate LLVM IR for available_externally function bodies atDouglas Gregor
-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> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@108156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Introduce Decl::hasBody() and FunctionDecl::hasBody() and use them instead ↵Argyrios Kyrtzidis
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". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107768 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-06Provide a hook for the benefit of clients using clang IR gen as a subroutine:John McCall
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. :) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107739 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30Reapply:Chris Lattner
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-30reduce nesting.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@107292 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
2010-06-22Switch 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
2010-06-22Add a new variant of getMangledName that caches the mangling for decls.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106547 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21Instantiations subject to an explicit template instantiationDouglas Gregor
declaration have default visibility even under -fvisibility=hidden. Fixes <rdar://problem/8109763>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-19Fix for PR7415: refactor CodeGenModule::MayDeferGeneration and make it lessEli Friedman
conservative for static variables in templated classes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106385 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
2010-06-15Implement -fvisibility-inlines-hidden. <rdar://problem/7819834>Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106003 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-11Add an option to specify the target C++ ABI to the frontend. Use it toCharles Davis
select either the default Itanium ABI or the new, experimental Microsoft ABI. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105804 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
2010-06-09Get rid of an unnecessary getMangledName overload.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@105671 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27When deciding whether a deferred declaration has already been emitted,John McCall
aliases count as definitions regardless of whether their target has been emitted yet. Fixes PR 7142. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104796 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
2010-05-25If 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
2010-05-13Disable the available_externally optimization for inline virtualDouglas Gregor
methods for which the key function is guaranteed to be in another translation unit. Unfortunately, this guarantee isn't the case when dealing with shared libraries that fail to export these virtual method definitions. I'm reopening PR6747 so we can consider this again at a later point in time. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103741 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Rework when and how vtables are emitted, by tracking where vtables areDouglas Gregor
"used" (e.g., we will refer to the vtable in the generated code) and when they are defined (i.e., because we've seen the key function definition). Previously, we were effectively tracking "potential definitions" rather than uses, so we were a bit too eager about emitting vtables for classes without key functions. The new scheme: - For every use of a vtable, Sema calls MarkVTableUsed() to indicate the use. For example, this occurs when calling a virtual member function of the class, defining a constructor of that class type, dynamic_cast'ing from that type to a derived class, casting to/through a virtual base class, etc. - For every definition of a vtable, Sema calls MarkVTableUsed() to indicate the definition. This happens at the end of the translation unit for classes whose key function has been defined (so we can delay computation of the key function; see PR6564), and will also occur with explicit template instantiation definitions. - For every vtable defined/used, we mark all of the virtual member functions of that vtable as defined/used, unless we know that the key function is in another translation unit. This instantiates virtual member functions when needed. - At the end of the translation unit, Sema tells CodeGen (via the ASTConsumer) which vtables must be defined (CodeGen will define them) and which may be used (for which CodeGen will define the vtables lazily). From a language perspective, both the old and the new schemes are permissible: we're allowed to instantiate virtual member functions whenever we want per the standard. However, all other C++ compilers were more lazy than we were, and our eagerness was both a performance issue (we instantiated too much) and a portability problem (we broke Boost test cases, which now pass). Notes: (1) There's a ton of churn in the tests, because the order in which vtables get emitted to IR has changed. I've tried to isolate some of the larger tests from these issues. (2) Some diagnostics related to implicitly-instantiated/implicitly-defined virtual member functions have moved to the point of first use/definition. It's better this way. (3) I could use a review of the places where we MarkVTableUsed, to see if I missed any place where the language effectively requires a vtable. Fixes PR7114 and PR6564. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-06Do not give implicitly-defined virtual members functionsDouglas Gregor
available_externally linkage, since they may not have been given a strong definition in another translation unit. Without this patch, the following test case fails to link with a GCC-compiled libstdc++: #include <sstream> int main() { std::basic_stringbuf<char> bs; } Fixes the last problem with the Boost.IO library. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103208 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-05When we emit a non-constant initializer for a global variable ofDouglas Gregor
reference type, make sure that the initializer we build is the of the appropriate type for the *reference*, not for the thing that it refers to. Fixes PR7050. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103115 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28IRGen for initialization/destruction ofFariborz Jahanian
ivar class objects (NeXt runtime). (radar 7900343). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102533 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-28Properly pass the address of a lazily-generated function declaration withJohn McCall
incomplete type. Fixes PR6911. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23More -fno-constant-cfstrings API work.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-23More work toward implementingFariborz Jahanian
NeXt's -fno-constant-cfstrings - wip. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102189 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-22Support for -fno-constant-cfstrings option - wip.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@102112 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Add comment explaning the use of c99 inline in c++.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Fix -Wcast-qual warnings.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19If a method is virtual and the class key function is in another file, emit ↵Rafael Espindola
the method as available_externally. Fixes PR6747 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101757 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
2010-04-13unbreak tests.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101153 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-13minor cleanupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@101151 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10Fix use after free. Incrementing an use_iterator after its user is erased is ↵Benjamin Kramer
unsafe. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100926 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10rely even less on CallInst internalsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100919 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-10do not rely on CallInst interna, use CallSite to access argumentsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100918 91177308-0d34-0410-b5e6-96231b3b80d8
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