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path: root/lib/Sema/SemaDeclAttr.cpp
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2009-03-18Be sure to not add weak import, if we are ignoring it.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67214 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-18Ignore weak import on properties.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67205 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-17don't crash when sentinel attribute is used on function without a prototype,Chris Lattner
discovered as part of PR3817 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-06Add Parse/Sema support for weak_import attribute.Daniel Dunbar
- Also, diagnose weak applied to types. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66259 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04Switch attributes to be allocated from the declcontext bump pointer just likeChris Lattner
decls. This reduces the number of calls to malloc on cocoa.h with pth and -disable-free from 15958 to 12444 times (down ~3500). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66023 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03PR3691: Add support for complex modes. I also tossed in support for XF Eli Friedman
while I was at it. There are still a lot of diagnostics missing from this code, and it isn't completely correct for anything other than x86, but it should work correctly on x86 for valid cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65935 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-26Create a new TypeNodes.def file that enumerates all of the types,Douglas Gregor
giving them rough classifications (normal types, never-canonical types, always-dependent types, abstract type representations) and making it far easier to make sure that we've hit all of the cases when decoding types. Switched some switch() statements on the type class over to using this mechanism, and filtering out those things we don't care about. For example, CodeGen should never see always-dependent or non-canonical types, while debug info generation should never see always-dependent types. More switch() statements on the type class need to be moved over to using this approach, so that we'll get warnings when we add a new type then fail to account for it somewhere in the compiler. As part of this, some types have been renamed: TypeOfExpr -> TypeOfExprType FunctionTypeProto -> FunctionProtoType FunctionTypeNoProto -> FunctionNoProtoType There shouldn't be any functionality change... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65591 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Use CheckAssignmentConstraints for checking the cleanup attr function. Fixes ↵Anders Carlsson
PR3656. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65461 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20remove some more methods from objc decls, using the iteratorChris Lattner
interfaces more consistently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-19Add sema support for the noinline attribute.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65055 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18__attribute__((aligned)) was being ignored!Daniel Dunbar
This knocks out another 8 gcc/compat/i386 & x86_64 failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64947 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18Cleanup objc's gc attributes code no longer needed.Fariborz Jahanian
This make warn-weak-field.m to fail (subject of a followup patch). attr-objc-gc.m no passes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64925 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-17Attribute 'iboutlet' can be applied to Objective-C property declarations.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64831 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-16Diagnose non-power-of-2 arguments to attribute aligned.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14add parser and type checking support for attribute((objc_exception)).Chris Lattner
We don't have "zero cost" exceptions for ObjC yet, so there is no codegen support required. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64546 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Several related changes: Chris Lattner
1) implement parser and sema support for reading and verifying attribute(warnunusedresult). 2) rename hasLocalSideEffect to isUnusedResultAWarning, inverting the sense of its result. 3) extend isUnusedResultAWarning to directly return the loc and range info that should be reported to the user. Make it substantially more precise in some cases than what was previously reported. 4) teach isUnusedResultAWarning about CallExpr to decls that are pure/const/warnunusedresult, fixing a fixme. 5) change warn_attribute_wrong_decl_type to not pass in english strings, instead, pass in integers and use %select. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64543 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Warn about attribute used ignored on "extern int aDaniel Dunbar
__attribute__((used))". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Sema/AST support for attribute used. Patch by Anders Johnson (with small ↵Daniel Dunbar
tweaks & test case)! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Start warning about unknown attributes.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64447 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Add a new Ignored attribute type, and use it for may_alias.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Add CodeGen support for the nodebug attribute.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64445 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Add sema support for the nodebug attribute.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-13Initial implementation of arbitrary fixed-width integer types. Eli Friedman
Currently only used for 128-bit integers. Note that we can't use the fixed-width integer types for other integer modes without other changes because glibc headers redefines (u)int*_t and friends using the mode attribute. For example, this means that uint64_t has to be compatible with unsigned __attribute((mode(DI))), and uint64_t is currently defined to long long. And I have a feeling we'll run into issues if we try to define uint64_t as something which isn't either long or long long. This doesn't get the alignment right in most cases, including the 128-bit integer case; I'll file a PR shortly. The gist of the issue is that the targets don't really expose the information necessary to figure out the alignment outside of the target description, so there's a non-trivial amount of work involved in getting it working right. That said, the alignment used is conservative, so the only issue with the current implementation is ABI compatibility. This makes it trivial to add some sort of "bitwidth" attribute to make arbitrary-width integers; I'll do that in a followup. We could also use this for stuff like the following for compatibility with gcc, but I have a feeling it would be a better idea for clang to be consistent between C and C++ modes rather than follow gcc's example for C mode. struct {unsigned long long x : 33;} x; unsigned long long a(void) {return x.x+1;} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-12Support __attribute__(section(<name>))Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64380 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-11Initial implementation of function overloading in C.Douglas Gregor
This commit adds a new attribute, "overloadable", that enables C++ function overloading in C. The attribute can only be added to function declarations, e.g., int *f(int) __attribute__((overloadable)); If the "overloadable" attribute exists on a function with a given name, *all* functions with that name (and in that scope) must have the "overloadable" attribute. Sets of overloaded functions with the "overloadable" attribute then follow the normal C++ rules for overloaded functions, e.g., overloads must have different parameter-type-lists from each other. When calling an overloaded function in C, we follow the same overloading rules as C++, with three extensions to the set of standard conversions: - A value of a given struct or union type T can be converted to the type T. This is just the identity conversion. (In C++, this would go through a copy constructor). - A value of pointer type T* can be converted to a value of type U* if T and U are compatible types. This conversion has Conversion rank (it's considered a pointer conversion in C). - A value of type T can be converted to a value of type U if T and U are compatible (and are not both pointer types). This conversion has Conversion rank (it's considered to be a new kind of conversion unique to C, a "compatible" conversion). Known defects (and, therefore, next steps): 1) The standard-conversion handling does not understand conversions involving _Complex or vector extensions, so it is likely to get these wrong. We need to add these conversions. 2) All overloadable functions with the same name will have the same linkage name, which means we'll get a collision in the linker (if not sooner). We'll need to mangle the names of these functions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-07Improve Sema of the cleanup attribute somewhat.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64047 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-04Some name-lookup-related fixes, from Piotr Rak!Douglas Gregor
- Changes Lookup*Name functions to return NamedDecls, instead of Decls. Unfortunately my recent statement that it will simplify lot of code, was not quite right, but it simplifies some... - Makes MergeLookupResult SmallPtrSet instead of vector, following Douglas suggestions. - Adds %qN format for printing qualified names to Diagnostic. - Avoids searching for using-directives in Scopes, which are not DeclScope, during unqualified name lookup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31Add sema support for the cleanup attribute.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63462 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-29move library-specific diagnostic headers into library private dirs. ReduceChris Lattner
redundant #includes. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63271 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-27Split the single monolithic DiagnosticKinds.def file into oneChris Lattner
.def file for each library. This means that adding a diagnostic to sema doesn't require all the other libraries to be rebuilt. Patch by Anders Johnsen! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63111 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-13Implemenent objective-c's NSObject attribute as a way of ddeclaraing c-typeFariborz Jahanian
objects as an objective-c object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62197 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-26Add full dllimport / dllexport support: both sema checks and codegen.Anton Korobeynikov
Patch by Ilya Okonsky git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-23Sema for fastcall/stdcall stuff. Tests will follow.Anton Korobeynikov
Patch by Ilya Okonsky! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-21Fix a comment.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61313 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17Semantics of @protocol attributes.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61114 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11Unifies the name-lookup mechanisms used in various parts of the ASTDouglas Gregor
and separates lexical name lookup from qualified name lookup. In particular: * Make DeclContext the central data structure for storing and looking up declarations within existing declarations, e.g., members of structs/unions/classes, enumerators in C++0x enums, members of C++ namespaces, and (later) members of Objective-C interfaces/implementations. DeclContext uses a lazily-constructed data structure optimized for fast lookup (array for small contexts, hash table for larger contexts). * Implement C++ qualified name lookup in terms of lookup into DeclContext. * Implement C++ unqualified name lookup in terms of qualified+unqualified name lookup (since unqualified lookup is not purely lexical in C++!) * Limit the use of the chains of declarations stored in IdentifierInfo to those names declared lexically. * Eliminate CXXFieldDecl, collapsing its behavior into FieldDecl. (FieldDecl is now a ScopedDecl). * Make RecordDecl into a DeclContext and eliminates its Members/NumMembers fields (since one can just iterate through the DeclContext to get the fields). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04Fix bug in attribute(nonnull) processing where not all of the parameter ↵Ted Kremenek
indices in nonnull(...) were actually processed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24Change a whole lot of diagnostics to take QualType's directly Chris Lattner
instead of converting them to strings first. This also fixes a bunch of minor inconsistencies in the diagnostics emitted by clang and adds a bunch of FIXME's to DiagnosticKinds.def. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59948 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23Convert IdentifierInfo's to be printed the same as DeclarationNames Chris Lattner
with implicit quotes around them. This has a bunch of follow-on effects and requires tweaking to a whole lot of code. This causes a regression in two tests (xfailed) by causing it to emit things like: Line 10: duplicate interface declaration for category 'MyClass1' ('Category1') instead of: Line 10: duplicate interface declaration for category 'MyClass1(Category1)' I will fix this in a follow-up commit. As part of this, I had to start switching stuff to use ->getDeclName() instead of Decl::getName() for consistency. This is good, but I was planning to do this as an independent patch. There will be several follow-on patches to clean up some of the mess, but this patch is already too big. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59917 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20__weak ivar need not warn.Fariborz Jahanian
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59743 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20Rename IdentifierInfo::isName to ::isStr. Use a nifty trickChris Lattner
from Sebastian to enforce that a literal string is passed in, and use this to avoid having to call strlen on it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59706 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20More objc gc stuff. Read/Write barriers for local static/extern,Fariborz Jahanian
diagnostics on use of __weak attribute on fields, Early support for read/write barriers for objc fields. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59682 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19stop calling II::getName() unnecesarily in semaChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19add direct support for signed and unsigned integer arguments to diagnostics.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19Switch several more Sema Diag methods over. This simplifies theChris Lattner
__builtin_prefetch code to only emit one diagnostic per builtin_prefetch. While this has nothing to do with the rest of the patch, the code seemed like overkill when I was updating it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59588 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18Attribute nonnull can be applied to block pointers.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-28Add attribute always_inline support.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58304 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-19Improve attribute parsing & tests.Daniel Dunbar
- Support noreturn on function-typed variables. - Extend isFunctionOrMethod to return true for K&R functions and provide hasFunctionProto to check if a decl has information about its arguments. This code needs some serious cleaning, but works. - Add/improve test cases for noreturn and unused. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57778 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Implement #pragma pack use in structure packing. The general approachDaniel Dunbar
is to encode the state of the #pragma pack stack as an attribute when the structure is declared. - Extend PackedAttr to take an alignment (in bits), and reuse for both __attribute__((packed)) (which takes no argument, instead packing tightly (to "minimize the memory required") and for #pragma pack (which allows specification of the maximum alignment in bytes). __attribute__((packed)) is just encoded as Alignment=1. This conflates two related but different mechanisms, but it didn't seem worth another attribute. - I have attempted to follow the MSVC semantics as opposed to the gcc ones, since if I understand correctly #pragma pack originated with MSVC. The semantics are generally equivalent except when the stack is altered during the definition of a structure; its not clear if anyone does this in practice. See testcase if curious. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-05Implement support for the const and pure attributes.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57142 91177308-0d34-0410-b5e6-96231b3b80d8
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