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2013-01-16Rework the traversal of Objective-C categories and extensions toDouglas Gregor
consider (sub)module visibility. The bulk of this change replaces myriad hand-rolled loops over the linked list of Objective-C categories/extensions attached to an interface declaration with loops using one of the four new category iterator kinds: visible_categories_iterator: Iterates over all visible categories and extensions, hiding any that have their "hidden" bit set. This is by far the most commonly used iterator. known_categories_iterator: Iterates over all categories and extensions, ignoring the "hidden" bit. This tends to be used for redeclaration-like traversals. visible_extensions_iterator: Iterates over all visible extensions, hiding any that have their "hidden" bit set. known_extensions_iterator: Iterates over all extensions, whether they are visible to normal name lookup or not. The effect of this change is that any uses of the visible_ iterators will respect module-import visibility. See the new tests for examples. Note that the old accessors for categories and extensions are gone; there are *Raw() forms for some of them, for those (few) areas of the compiler that have to manipulate the linked list of categories directly. This is generally discouraged. Part two of <rdar://problem/10634711>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172665 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15Fix CastDavid Greene
Avoid a cast-away-const error by properly using const_cast<>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172558 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-15Resolved merge error with r172323 (llvm::X -> X)Alexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172528 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Dump comments in -ast-dump.Alexander Kornienko
http://llvm-reviews.chandlerc.com/D269 "Added dumping of declaration comments in ASTDumper. This required moving the comment dumping code from CommentDumper so that the indentation is correct." Patch by Philip Craig! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172409 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-14Remove an unneeded const_castDmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172370 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Remove useless 'llvm::' qualifier from names like StringRef and others that areDmitri Gribenko
brought into 'clang' namespace by clang/Basic/LLVM.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12commentRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172317 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12barRafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172316 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Disable caching of visibility.Rafael Espindola
The testcase in pr14929 shows that this is extremely hard to do. If we choose to apply the attribute, that causes the visibility of some decls to change and that can happen really late (during codegen). Current gcc warns and ignores the attribute in this testcase with a warning. This suggest that the correct solution is to find a point in the compilation where we can compute the visibility and * assert it was never computed before * reject any attempts to compute it again in the future (with warnings). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172305 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12Provide Decl::getOwningModule(), which determines the (sub)module inDouglas Gregor
which a particular declaration resides. Use this information to customize the "definition of 'blah' must be imported from another module" diagnostic with the module the user actually has to import. Additionally, recover by importing that module, so we don't complain about other names in that module. Still TODO: coming up with decent Fix-Its for these cases, and expand this recovery approach for other name lookup failures. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172290 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-12comment parsing: when property accessors don't have commentFariborz Jahanian
of their own (or are syntheszed), use prperty's comment. for them. // rdar://12791315 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172278 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-11Fixed a bug that caused the AST importer to erroneouslySean Callanan
import incomplete definitions for RecordDecls and then mark the resulting definition as complete. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172273 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Issue warning when case value is too large to fitFariborz Jahanian
in case condition type. // rdar://11577384. Test is conditionalized on x86_64-apple triple as I am not sure if the INT_MAX/LONG_MAX values in the test will pass this test for other hosts. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172016 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Suppress GCC -Wreturn warning.David Blaikie
Modified from a patch by David Greene. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171982 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-09Handle static functions being redeclared in function scope.Rafael Espindola
Fixes pr14861. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Clear the LV cache when setting the instantiated from link.Rafael Espindola
Fixes pr14835. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171857 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-08Move ref qualifiers from Type bitfields into FunctionProtoType, stealing twoRichard Smith
bits from the number of parameters. This brings the bitfields down from 33 bits to 32 bits, reducing the size of Types by 4 bytes on 32-bit systems. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171827 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Minor refactoring of my last patchFariborz Jahanian
related to // rdar://12958878 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171792 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07objective-C: when searching for declarations in protocolFariborz Jahanian
list of classes, etc., make sure to look into protocol definitions. // rdar://12958878 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171777 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Implement Attr dumping for -ast-dump.Alexander Kornienko
http://llvm-reviews.chandlerc.com/D234 Patch by Philip Craig! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171760 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-07Scalar shifts in the OpenCL specification (as of v. 1.2) are defined to beDavid Tweed
with respect to the lower "left-hand-side bitwidth" bits, even when negative); see OpenCL spec 6.3j. This patch both implements this behaviour in the code generator and "constant folding" bits of Sema, and also prevents tests to detect undefinedness in terms of the weaker C99 or C++ specifications from being applied. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171755 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-05Assert that redeclarations have the same linkage.Rafael Espindola
It is somewhat hard to test linkage, so I decided to try to add an assert. This already found some interesting cases where there were different. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171585 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04Style fix: We don't use lowercase-and-underscored template parameter names.Rafael Espindola
Thanks for dgregor for noticing it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171532 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04Fix typo. Thanks to dgregor for noticing it.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171521 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-04Fix up various builtin declaration of objc_msgSend familiesFariborz Jahanian
to match those foung in objc.h an avoid spurious warnings. // rdar://12489098 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171492 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02s/CXX0X/CXX11/g, except for __GNU_EXPERIMENTAL_CXX0X__, and update a few ↵Richard Smith
nearby 'C++0x' comments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171372 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02s/CPlusPlus0x/CPlusPlus11/gRichard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171367 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-02Convert an if that never happens to an assert.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171354 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Comment lexing: replace manual comparison with StringRef::find_first_ofDmitri Gribenko
This gives an about 1.8% improvement on Clang bootstrap with -Wdocumentation git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171262 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-30Don't get confused if a extern "C" builtin function is redeclared withoutRafael Espindola
the extern "C". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171260 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29ArrayRefize CXXTryStmt.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-29ArrayRefize a CompoundStmt constructor.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Reject overloading of two static extern C functions.Rafael Espindola
This patch moves hasCLanguageLinkage to be VarDecl and FunctionDecl methods so that they can be used from SemaOverload.cpp and then fixes the logic in Sema::IsOverload. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171193 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28Replace magic numbers in CheckICE with an enum.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171192 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-28PR14729: Fix typo in CheckICE for BinaryConditionalOperators.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171191 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25Fix for PR12222.Erik Verbruggen
Changed getLocStart() and getLocEnd() to be required for Stmts, and make getSourceRange() optional. The default implementation for getSourceRange() is build the range by calling getLocStart() and getLocEnd(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171067 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25Add intel_ocl_bicc calling convention as a function attribute to clang. The ↵Guy Benyei
calling convention is already implemented in LLVM. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171056 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25Add 171048 back but invalidate the cache of all redeclarations when settingRafael Espindola
the body of a functions. The problem was that hasBody looks at the entire chain and causes problems to -fvisibility-inlines-hidden if the cache was not invalidated. Original message: Cache visibility of decls. This unifies the linkage and visibility caching. I first implemented this when working on pr13844, but the previous fixes removed the performance advantage of this one. This is still a step in the right direction for making linkage and visibility cheap to use. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171053 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25Revert r171048, "Cache visibility of decls."NAKAMURA Takumi
It broke stage2. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171050 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-25Cache visibility of decls.Rafael Espindola
This unifies the linkage and visibility caching. I first implemented this when working on pr13844, but the previous fixes removed the performance advantage of this one. This is still a step in the right direction for making linkage and visibility cheap to use. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171048 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Use a safe default width for template-diff'ing integral arguments, inDouglas Gregor
case we can't find an exact width to use. Fixes crash in <rdar://problem/12456626>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170951 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-21Fixes couple of friend declaration -ast-print bugFariborz Jahanian
found by running -ast-print on all-std-headers.cpp which caused it to go into infinite loop. Now -ast-print prints all declarations found in all-std-headers.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170928 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Revert r170500. It over-zealously converted *ALL* things named Attributes, ↵Bill Wendling
which is wrong here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170721 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Minor coding style issue: NULL -> 0Alexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170688 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20ASTDumper coding style fixes.Alexander Kornienko
http://llvm-reviews.chandlerc.com/D226 Patch by Philip Craig! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Fix another uninitialized bool member bug found by -fsanitize=bool. This oneRichard Smith
appears to currently be benign (we happen to test the flags in the right order, so we never depend on the uninitialized value). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170640 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Robustify the @encode code and add support for _Atomic.John McCall
Fixes PR14628. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170639 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Fix code that attempted to produce a diagnostic with one DiagnosticEngine, thenRichard Smith
produce a note for that diagnostic either with a different DiagnosticEngine or after calling DiagnosticEngine::Reset(). That didn't make any sense, and did the wrong thing if the original diagnostic was suppressed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-20Implement AST dumper for Decls.Alexander Kornienko
http://llvm-reviews.chandlerc.com/D52 Patch by Philip Craig! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170634 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19Audit DeclPrinter with -ast-dump on Cocoa.h andFariborz Jahanian
fix any bad objectiveC syntax coming out of DeclPrinter. This is on going. Also, introduce a new PrintPolicy and use it as needed when declaration tag is to be produced via DeclPrinter. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170606 91177308-0d34-0410-b5e6-96231b3b80d8