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path: root/lib/CodeGen/CodeGenModule.cpp
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2011-04-07Basic, untested implementation for an "unknown any" type requested by LLDB.John McCall
The idea is that you can create a VarDecl with an unknown type, or a FunctionDecl with an unknown return type, and it will still be valid to access that object as long as you explicitly cast it at every use. I'm still going back and forth about how I want to test this effectively, but I wanted to go ahead and provide a skeletal implementation for the LLDB folks' benefit and because it also improves some diagnostic goodness for placeholder expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129065 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06If this is an intrinsic function, set the function's attributes to the ↵Peter Collingbourne
intrinsic's attributes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129000 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-26On Mac OS X, the presence of an 'availability' attribute for thatDouglas Gregor
platform implies default visibility. To achieve these, refactor our lookup of explicit visibility so that we search for both an explicit VisibilityAttr and an appropriate AvailabilityAttr, favoring the VisibilityAttr if it is present. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128336 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Update type cache when a type is completed.Devang Patel
Radar 9168773 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23Implement a new 'availability' attribute, that allows one to specifyDouglas Gregor
which versions of an OS provide a certain facility. For example, void foo() __attribute__((availability(macosx,introduced=10.2,deprecated=10.4,obsoleted=10.6))); says that the function "foo" was introduced in 10.2, deprecated in 10.4, and completely obsoleted in 10.6. This attribute ties in with the deployment targets (e.g., -mmacosx-version-min=10.1 specifies that we want to deploy back to Mac OS X 10.1). There are several concrete behaviors that this attribute enables, as illustrated with the function foo() above: - If we choose a deployment target >= Mac OS X 10.4, uses of "foo" will result in a deprecation warning, as if we had placed attribute((deprecated)) on it (but with a better diagnostic) - If we choose a deployment target >= Mac OS X 10.6, uses of "foo" will result in an "unavailable" warning (in C)/error (in C++), as if we had placed attribute((unavailable)) on it - If we choose a deployment target prior to 10.2, foo() is weak-imported (if it is a kind of entity that can be weak imported), as if we had placed the weak_import attribute on it. Naturally, there can be multiple availability attributes on a declaration, for different platforms; only the current platform matters when checking availability attributes. The only platforms this attribute currently works for are "ios" and "macosx", since we already have -mxxxx-version-min flags for them and we have experience there with macro tricks translating down to the deprecated/unavailable/weak_import attributes. The end goal is to open this up to other platforms, and even extension to other "platforms" that are really libraries (say, through a #pragma clang define_system), but that hasn't yet been designed and we may want to shake out more issues with this narrower problem first. Addresses <rdar://problem/6690412>. As a drive-by bug-fix, if an entity is both deprecated and unavailable, we only emit the "unavailable" diagnostic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Simplify Mac runtime selection - it's the factory function's job to select ↵David Chisnall
which class to produce, not CodeGenModule's. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22The emission of an Objective-C++'s class .cxx_destruct method should beJohn McCall
conditioned on whether it has any destructible ivars, not on whether it has any non-trivial class-object initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128074 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18Add support for language-specific address spaces. On top of that,Peter Collingbourne
add support for the OpenCL __private, __local, __constant and __global address spaces, as well as the __read_only, _read_write and __write_only image access specifiers. Patch originally by ARM; language-specific address space support by myself. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18The Darwin kernel does not provide useful guard variable support.John McCall
Issue this as an IR-gen error; it's not really worthwhile doing this "right", i.e. in Sema, because IR gen knows a lot of tricks beyond what the constant evaluator knows. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17Remove code that was intentionally generating bad code on the GNU runtime ↵David Chisnall
for no reason (failing to emit .cxx_constructor / .cxx_destructor methods). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127806 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14Switch from internal to linker_private linkage, it is sufficient to please ↵Rafael Espindola
the new linker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127622 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14Fix link of libxul with LTO and the linker in xcode4. It is not clear if thisRafael Espindola
is working around a bug in ld or if the new linker has a reasonable reason for wanting the string constant to be linker visible. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127594 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09Fix three of the four places where I left breadcrumbs to avoid unnecessaryJohn McCall
recomputation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09Use the "undergoes default argument promotion" bit on parameters toJohn McCall
simplify the logic of initializing function parameters so that we don't need both a variable declaration and a type in FunctionArgList. This also means that we need to propagate the CGFunctionInfo down in a lot of places rather than recalculating it from the FAL. There's more we can do to eliminate redundancy here, and I've left FIXMEs behind to do it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07DebugInfo can be enabled or disabled at function level (e.g. using an ↵Devang Patel
attribute). However, at module level it is determined by command line option and the state of command line option does not change during compilation. Make this layering explicit and fix accidental cases where the code generator was checking whether module has debug info enabled instead of checking whether debug info is enabled for this function or not. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127165 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07Do not emit stop point for CXXDefaultArgExpr. It results in suboptimial user ↵Devang Patel
experience. 21 int main() { 22 A a; For example, here user would expect to stop at line 22, even if A's constructor leads to a call through CXXDefaultArgExpr. This fixes ostream-defined.exp regression from gdb testsuite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127164 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05StringRefify.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127082 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22Reorganize the emission of local variables.John McCall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19Warn about code that uses variables and functions with internal linkageJohn McCall
without defining them. This should be an error, but I'm paranoid about "uses" that end up not actually requiring a definition. I'll revisit later. Also, teach IR generation to not set internal linkage on variable declarations, just for safety's sake. Doing so produces an invalid module if the variable is not ultimately defined. Also, fix several places in the test suite where we were using internal functions without definitions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126016 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15Assorted cleanup:John McCall
- Have CGM precompute a number of commonly-used types - Have CGF copy that during initialization instead of recomputing them - Use TBAA info when initializing a parameter variable - Refactor the scalar ++/-- code git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125562 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Use raw_svector_ostream in more places in the mangler.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125321 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09When IRgen refers to a function declaration that is not a definition,Douglas Gregor
and we later find the definition, make sure that we add the definition (not the declaration) to the list of deferred definitions to emit. Fixes PR8864. Thanks to Nick Lewycky for testing this patch out git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125157 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08Reorganize CodeGen{Function,Module} to eliminate the unfortunateJohn McCall
Block{Function,Module} base class. Minor other refactorings. Fixed a few address-space bugs while I was there. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125085 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-05Re-land r124768, with a fix for PR9130.Anders Carlsson
We now emit everything except unused implicit virtual member functions when building the vtable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124935 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04minor refactoring of -fapple-kext stuff.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124837 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04What was I thinking?Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04-fapple-kext cannot have 'weak' visibility in thisFariborz Jahanian
abi. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124834 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03Revert 124768.Rafael Espindola
This reopens PR99114, but that one at least can be avoided with an #include. PR9130 cannot. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124780 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03Don't try to mark virtual members referenced for classes where the key functionAnders Carlsson
is not defined in the current translation unit. Doing so lead to compile errors such as PR9114. Instead, when CodeGen is building the vtable, don't try to emit a definition for functions that aren't marked used in the current translation unit. Fixes PR9114. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124768 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Revert 124633. The linker has been told how to merge available_externally.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124651 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01Set visibility for available_externally globals. This is important for two ↵Rafael Espindola
reasons: * llvm-link would complains about mismatched visibility * If we produce a relocation with an available_externally, it is good to know that it is hidden. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124633 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-30When building with optimizations, emit vtables where the key is not in the Anders Carlsson
current translation unit as available_externally. This helps devirtualize the second example in PR3100, comment 18: struct S { S() {}; virtual void xyzzy(); }; inline void foo(S *s) { s->xyzzy(); } void bar() { S s; foo(&s); } This involved four major changes: 1. In DefineUsedVTables, always mark virtual member functions as referenced for non-template classes and class template specializations. 2. In CodeGenVTables::ShouldEmitVTableInThisTU return true if optimizations are enabled, even if the key function is not implemented in this translation unit. We don't ever do this for code compiled with -fapple-kext, because we don't ever want to devirtualize virtual member function calls in that case. 3. Give the correct linkage for vtables where the key function is not defined. 4. Update the linkage for RTTI structures when necessary. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124565 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Move GetLLVMVisibility to CodeGenModule.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124550 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Add RTTIBuilder::GetAddrOfTypeName which uses the newly added ↵Anders Carlsson
CreateOrReplaceCXXRuntimeVariable. Set the visibility for typeinfo names. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124548 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Change CodeGenModule::setTypeVisibility to take a TypeVisibilityKind enum ↵Anders Carlsson
instead of an "IsForRTTI" flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124546 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Replace an isa/cast with a dyn_cast.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124542 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Get rid of an unneeded parameter from setGlobalVisibility.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124541 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Use CGM.CreateOrReplaceCXXRuntimeVariable in CGVTables.cppAnders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Add a new function, to be used by CGRTTI, CGVTables and CGVTT (which each ↵Anders Carlsson
has their own copy of this code). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Replace a literal '8' with getCharWidth().Ken Dyck
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124536 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-29Remove IsDefinition from CodeGenModule::setTypeVisibility; it is always true.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24Mark VTables and RTTI data linkonce_odr instead of weak_odr, with the ↵Anders Carlsson
exception of explicit template instantiations, which have to be weak_odr. This fixes PR6996. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124089 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-22Use a FunctionType::get overload that doesn't require an empty vector.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124029 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18Add unnamed_addr in CreateRuntimeVariable.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123773 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18Replace calls to CharUnits::fromQuantity() with ones to Ken Dyck
ASTContext::toCharUnitsFromBits() when converting from bit sizes to char units. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123720 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17More unnamed_addr.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123681 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17merge strings created byRafael Espindola
const NSConstantString *appKey = @"MyApp"; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123680 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17Add unnamed_addr to the special strings created byRafael Espindola
__builtin___CFStringMakeConstantString This fixes PR8993. A darwin expert might want to check that this is safe. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123658 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
2011-01-11Set unnamed_addr for type infos that we are confortable marking as hidden. IRafael Espindola
think it is safe to mark all type infos with unnamed_addr, but I am not sure. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123275 91177308-0d34-0410-b5e6-96231b3b80d8
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