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2009-01-12Properly set the scope of non-fields declared within a struct, union,Douglas Gregor
or enum to be outside that struct, union, or enum. Fixes several regressions: <rdar://problem/6487662> <rdar://problem/6487669> <rdar://problem/6487684> <rdar://problem/6487702> PR clang/3305 PR clang/3312 There is still some work to do in Objective-C++, but this requires that each of the Objective-C entities (interfaces, implementations, etc.) to be introduced into the context stack with PushDeclContext/PopDeclContext. This will be a separate fix, later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-12testcase that works now with r62061Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62062 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09When we see a reference to a struct, class, or union like "struct X"Douglas Gregor
that is neither a definition nor a forward declaration and where X has not yet been declared as a tag, introduce a declaration into the appropriate scope (which is likely *not* to be the current scope). The rules for the placement of the declaration differ slightly in C and C++, so we implement both and test the various corner cases. This implementation isn't 100% correct due to some lingering issues with the function prototype scope (for a function parameter list) not being the same scope as the scope of the function definition. Testcase is FIXME'd; this probably isn't an important issue. Addresses <rdar://problem/6484805>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62014 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Replace DeclContext's vector of ScopedDecl pointers with a linked listDouglas Gregor
of ScopedDecls (using the new ScopedDecl::NextDeclInScope pointer). Performance-wise: - It's a net win in memory utilization, since DeclContext is now one pointer smaller than it used to be (std::vectors are typically 3 pointers; we now use 2 pointers) and - Parsing Cocoa.h with -fsyntax-only (with a Release-Asserts Clang) is about 1.9% faster than before, most likely because we no longer have the memory allocations and copying associated with the std::vector. I'll re-enable serialization of DeclContexts once I've sorted out the NextDeclarator/NextDeclInScope question. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62001 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Re-enable PTH testing for Cocoa.h and Carbon.h (and include testing for ↵Ted Kremenek
Objective-C++). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61965 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-09Temporarily revert r61956 and r61957 (PTH tests failing).Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-08Enhance -fsyntax-only test of Carbon.h to also include testing for PTH.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-08Unify the code for defining tags in C and C++, so that we alwaysDouglas Gregor
introduce a Scope for the body of a tag. This reduces the number of semantic differences between C and C++ structs and unions, and will help with other features (e.g., anonymous unions) in C. Some important points: - Fields are now in the "member" namespace (IDNS_Member), to keep them separate from tags and ordinary names in C. See the new test in Sema/member-reference.c for an example of why this matters. In C++, ordinary and member name lookup will find members in both the ordinary and member namespace, so the difference between IDNS_Member and IDNS_Ordinary is erased by Sema::LookupDecl (but only in C++!). - We always introduce a Scope and push a DeclContext when we're defining a tag, in both C and C++. Previously, we had different actions and different Scope/CurContext behavior for enums, C structs/unions, and C++ structs/unions/classes. Now, it's one pair of actions. (Yay!) There's still some fuzziness in the handling of struct/union/enum definitions within other struct/union/enum definitions in C. We'll need to do some more cleanup to eliminate some reliance on CurContext before we can solve this issue for real. What we want is for something like this: struct X { struct T { int x; } t; }; to introduce T into translation unit scope (placing it at the appropriate point in the IdentifierResolver chain, too), but it should still have struct X as its lexical declaration context. PushOnScopeChains isn't smart enough to do that yet, though, so there's a FIXME test in nested-redef.c git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61940 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28Diagnose declarations that don't declare anything, and fix PR3020.Sebastian Redl
Examples: int; typedef int; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-28Fix filename typo.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-26Complete the test after adding handling of merged attributes on decls.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61438 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
2008-12-26Testcase for stdcall/fastcall sema checks.Anton Korobeynikov
Patch by Ilya Okonsky! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Clean up the C89/C++ warnings about C99 array features to not Chris Lattner
emit duplicate diags (some in parser and some in sema) and to warn about use of typequals in array sizes. This implements PR2759. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61197 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18Merge function-return.c into function.cChris Lattner
Fix PR2790 by making a warning an EXTWARN instead of EXTENSION. Add a new EXTENSION warning for "return (some void expression);" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17diagnose C99 6.9.1p5, C arguments in definitions that are lackingChris Lattner
a name. This implements PR3208. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15Make error handling for va_start a bit more robust. Fixes PR3213.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61055 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15Create new EnumDecl nodes for redeclarations of enums, linking themDouglas Gregor
together in the same way that we link RecordDecl/CXXRecordDecl nodes. Unify ActOnTag and ActOnTagStruct. Fixes PR clang/2753. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61034 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12Implement the final (hopefully) wrinkle to i-c-e + builtin_constant_p Chris Lattner
processing: it allows arbitrary foldable constants as the operand of ?: when builtin_constant_p is the condition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60954 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12merge these testcases into one file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60936 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12implement rdar://6091492 - ?: with __builtin_constant_p as the operand is an ↵Chris Lattner
i-c-e. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60934 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12add expected diagChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60927 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12Fix rdar://6095061 - gcc allows __builtin_choose_expr as an lvalueChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12Testcase for something that already works. Clang agrees with Comeau,Chris Lattner
and this makes sense. likely a gcc bug that it doesn't diagnose the bad restrict. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60923 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12fix rdar://6097892 - gcc incompat: clang rejects __func__, __FUNCTION__, and ↵Chris Lattner
__PRETTY_FUNCTION__ outside func Yeah, this is "useful". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-12Implement rdar://6138816 - [sema] named bitfields cannot have 0 widthChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60920 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-11add annotationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60907 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Add another complex promotion test.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60863 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Make sure to promote expressions of the form (floating point + complex ↵Anders Carlsson
integer) correctly, to (complex floating point + complex floating point) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60862 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-10Fix <rdar://problem/6418623> Bogus block type compatibility warning.Steve Naroff
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60842 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-08Workaround for PR3173. The fix is correct in the sense that if the enum Eli Friedman
code were working correctly, it would be a no-op, but it's not really a proper fix. That said, I don't really want to touch the enum code at the moment because I don't understand it very well, and this seems to be a relatively visible regression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07a minor grammar fixChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60646 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-07Improve VLA diagnostics/sema checking. Fixes PR2361 and PR2352.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Simplify test.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-06Add diagnostics for bitfields.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Use VerifyIntegerConstantExpression instead of isIntegerConstantExpr. Fixes ↵Anders Carlsson
PR2963 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Make Sema::CheckForConstantInitializer use Expr::Evaluate. This fixes PR3130.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60580 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04change getCurFunctionDecl to skip through Block contexts to findChris Lattner
the containing block. Introduce a new getCurFunctionOrMethodDecl method to check to see if we're in a function or objc method. Minor cleanups to other related places. This fixes rdar://6405429. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60564 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-04instead of forcing blocks on by default, make them default to off, but letChris Lattner
specific targets default them to on. Default blocks to on on 10.6 and later. Add a -fblocks option that allows the user to override the target's default. Use -fblocks in the various testcases that use blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60563 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02int-arith-convert.c makes assumptions about integer sizes, so force a ↵Sebastian Redl
specific architecture git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Fix test. (0 && (a(),1)) is a valid I-C-E according to C99.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60331 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Add Sema::isNullPointerConstant which extwarns if necessary. Use it in ↵Anders Carlsson
Sema::CheckConditionalOperands. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60319 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01Use VerifyIntegerConstantExpression for case values.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60317 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26add missing RUN linesNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60107 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
2008-11-24The address of a variable is only constant if the variable has global storage.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24Fix bug in the constant evaluator. Fixes PR3115.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59938 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24Rewrite FindDiagnostics to be more strict about the formatting of the Chris Lattner
expected-foo strings. Now the only allowed characters between expected-error and {{ is whitespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59925 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23clean up -verify mode output. If the expected-error string is Chris Lattner
mangled, report it using the diagnostics machinery instead of printf. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23make the 'to match this' diagnostic a note.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59921 91177308-0d34-0410-b5e6-96231b3b80d8