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2012-03-01Moving tagging of '__experimental_modules_import' IdentifierInfo out ofTed Kremenek
IndentifierTable::get() and into IdentifierTable's constructor. This gets a 0.7% reducing on lexing time for Cocoa.h, and about the same for PCH generation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151854 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Add a flag -fthread-sanitizer.Kostya Serebryany
This flag enables ThreadSanitizer instrumentation committed to llvm as r150423. The patch includes one test for -fthread-sanitizer and one similar test for -faddress-sanitizer. This patch does not modify the linker flags (as we do it for -faddress-sanitizer) because the run-time library is not yet committed and it's structure in compiler-rt is not 100% clear. The users manual wil be changed in a separate commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151846 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Change @import to @__experimental_modules_import. We are not ready to ↵Ted Kremenek
commit to a particular syntax for modules, and don't have time to push it forward in the near future. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151841 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Revert r151800, which was committed without review and has correctness issues.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151804 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Implements support for #pragma include_alias in ms compatibility mode. ↵Aaron Ballman
Fixes PR10705. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151800 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-01Reject 'a = {0} = {0}' rather than parsing it as '(a = {0}) = {0}'. AlsoRichard Smith
improve the diagnostics for some attempts to use initializer lists in expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151794 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29Reapply r151638 and r151641.James Molloy
The bug that was caught by Apple's internal buildbots was valid and also showed another bug in my implementation. These are now fixed, with regression tests added to catch them both (not Darwin-specific). Original log: ==================== Revert r151638 because it causes assertion hit on PCH creation for Cocoa.h Original log: --------------------- Correctly track tags and enum members defined in the prototype of a function, and ensure they are properly scoped. This fixes code such as: enum e {x, y}; int f(enum {y, x} n) { return 0; } This finally fixes PR5464 and PR5477. --------------------- I also reverted r151641 which was enhancement on top of r151638. ==================== git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151712 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-29[driver] Emit an error when trying to use ARC on macosx earlier than 10.6Argyrios Kyrtzidis
rdar://10459258 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151706 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28Revert r151638 because it causes assertion hit on PCH creation for Cocoa.hArgyrios Kyrtzidis
Original log: --------------------- Correctly track tags and enum members defined in the prototype of a function, and ensure they are properly scoped. This fixes code such as: enum e {x, y}; int f(enum {y, x} n) { return 0; } This finally fixes PR5464 and PR5477. --------------------- I also reverted r151641 which was enhancement on top of r151638. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151667 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-28Correctly track tags and enum members defined in the prototype of a ↵James Molloy
function, and ensure they are properly scoped. This fixes code such as: enum e {x, y}; int f(enum {y, x} n) { return 0; } This finally fixes PR5464 and PR5477. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151638 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-27When evaluating integer expressions include a check for sub-expressionsArgyrios Kyrtzidis
depth and error if we exceed a max value, to make sure we avoid a stack overflow. This is a hacky temporary fix. rdar://10913206. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151585 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-27After numerous requests, have Objective-C 'method declared here' notes ↵Ted Kremenek
mention the actual method. This looks better within an IDE, where text isn't always regurgitated in the presentation of a warning. Fixes radar 10914035. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151579 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-27Move "clang/Analysis/Support/SaveAndRestore.h" to "llvm/ADT/SaveAndRestore.h"Argyrios Kyrtzidis
to make it more widely available. Depends on llvm commit r151564 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151566 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-26Move FullSourceLoc::dump into the .cpp file, the used attribute made us emit ↵Benjamin Kramer
this into every TU that includes SourceLocation.h. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151493 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25Fix r151443 to only apply C++11's exception for non-static data member accessRichard Smith
in cases where we would otherwise disallow the access, and add a -Wc++98-compat diagnostic for this C++11 feature. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151444 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-25Improve the diagnostic in ARC mode when a conditional with an Objective-C ↵Eli Friedman
type and void* is used. <rdar://problem/10486347>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151416 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Back out __decltype warning from r151377: we should either warn on all the GNURichard Smith
__keywords or none of them. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151401 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24__decltype is a GNU extension, not a C++11 extension.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151377 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-24Implement a new type trait __is_trivially_constructible(T, Args...)Douglas Gregor
that provides the behavior of the C++11 library trait std::is_trivially_constructible<T, Args...>, which can't be implemented purely as a library. Since __is_trivially_constructible can have zero or more arguments, I needed to add Yet Another Type Trait Expression Class, this one handling arbitrary arguments. The next step will be to migrate UnaryTypeTrait and BinaryTypeTrait over to this new, more general TypeTrait class. Fixes the Clang side of <rdar://problem/10895483> / PR12038. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23Handle "#pragma GCC visibility" in a few more places. Switch over "#pragma ↵Eli Friedman
pack" to use the same handling that gcc does. Fixes <rdar://problem/10871094> and <rdar://problem/10893316>. (Hopefully, common usage of these pragmas isn't irregular enough to break our current handling. Doug has ideas for a more crazy approach if necessary.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151307 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-23Provide the __is_trivially_assignable type trait, which providesDouglas Gregor
compiler support for the std::is_trivially_assignable library type trait. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151240 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Add new driver warning from r151174 to a warning group. Please let me know ↵Chad Rosier
if this isn't the appropriate grouping. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151177 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22[driver] Add a warning for when -mcpu= is specified without an argument. ThereChad Rosier
are likely many other OPT_xxxx_EQ options that could/should be added here. rdar://10704648 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151174 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Fix parsing and processing initializer lists in return statements and as ↵Sebastian Redl
direct member initializers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151155 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Warn about non-standard format strings (pr12017)Hans Wennborg
This adds the -Wformat-non-standard flag (off by default, enabled by -pedantic), which warns about non-standard things in format strings (such as the 'q' length modifier, the 'S' conversion specifier, etc.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151154 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22More ArrayRef-ification of methods.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151152 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-22Accept braced-init-lists in conditions, and, in passing, dramatically improveRichard Smith
the diagnostic for using a parenthesized direct-initializer in a condition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151137 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-21Mark a few 'dump' methods as 'used' to make sure they are included in libclangArgyrios Kyrtzidis
and useable while debugging. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151033 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20[PCH] Recover gracefully if the ASTReader detects that a file is differentArgyrios Kyrtzidis
from the one stored in the PCH/AST, while trying to load a SLocEntry. We verify that all files of the PCH did not change before loading it but this is not enough because: - The AST may have been 1) kept around, 2) to do queries on it. - We may have 1) verified the PCH and 2) started parsing. Between 1) and 2) files may change and we are going to have crashes because the rest of clang cannot deal with the ASTReader failing to read a SLocEntry. Handle this by recovering gracefully in such a case, by initializing the SLocEntry with the info from the PCH/AST as well as reporting failure by the ASTReader. rdar://10888929 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151004 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-20Basic: import IntrusiveRefCntPtr<> into clang namespaceDylan Noblesmith
The class name is long enough without the llvm:: added. Also bring in RefCountedBase and RefCountedBaseVPTR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150958 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Implement constant expression support for __real__ and __imag__ on lvalueRichard Smith
complex numbers. Treat complex numbers as arrays of the corresponding component type, in order to make std::complex behave properly if implemented in terms of _Complex T. Apparently libstdc++'s std::complex is implemented this way, and we were rejecting a member like this: constexpr double real() { return __real__ val; } because it was marked constexpr but unable to produce a constant expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-18Change wording of warning about using __bridge casts in non-ARC.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150868 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Improve recovery for lambda expressions that have 'mutable' or aDouglas Gregor
trailing return type but not a '()'. Recover by inserting the parentheses. Thanks to Xeo on IRC for the example. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150727 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16C++11 allows unions to have static data members. Remove the correspondingRichard Smith
restriction and add some tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150721 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Allow thread safety attributes on function definitions.DeLesley Hutchins
For compatibility with gcc, clang will now parse gcc attributes on function definitions, but issue a warning if the attribute is not a thread safety attribute. Warning controlled by -Wgcc-compat. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150698 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16constexpr tidyups:Richard Smith
* Fix bug when determining whether && / || are potential constant expressions * Try harder when determining whether ?: is a potential constant expression * Produce a diagnostic on sizeof(VLA) to provide a better source location git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150657 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Implicitly define a lambda's conversion functions (to functionDouglas Gregor
pointers and block pointers). We use dummy definitions to keep the invariant that an implicit, used definition has a body; IR generation will substitute the actual contents, since they can't be represented as C++. For the block pointer case, compute the copy-initialization needed to capture the lambda object in the block, which IR generation will need later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150645 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-16Mark the parenthesized array member initialization diagnostic as DefaultError,Richard Smith
and move it out of -Wgnu so that -Wno-gnu leaves it enabled. As requested by Eli. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150643 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Support GCC's bug^Wextension allowing class array members to be initalized by aRichard Smith
parenthesized braced-init-list in the base/member initialization list. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150625 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Provide common include for all diagnostic headers.David Blaikie
Reviewed by Ted Kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150616 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Remove the unuseful -fdiagnostics-show-nameDavid Blaikie
This option was added in r129614 and doesn't have any use case that I'm aware of. It's possible that external tools are using these names - and if that's the case we can certainly reassess the functionality, but for now it lets us shave out a few unneeded bits from clang. Move the "StaticDiagNameIndex" table into the only remaining consumer, diagtool. This removes the actual diagnostic name strings from clang entirely. Reviewed by Chris Lattner & Ted Kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150612 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15When overload resolution picks an implicitly-deleted special memberDouglas Gregor
function, provide a specialized diagnostic that indicates the kind of special member function (default constructor, copy assignment operator, etc.) and that it was implicitly deleted. Add a hook where we can provide more detailed information later. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150611 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Tweak comment above DiagGroup<"all">.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150600 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15A little more lambda capture initialization diagnostics cleanupDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150589 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Introduce a new initialization entity for lambda captures, andDouglas Gregor
specialize location information and diagnostics for this entity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150588 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Specialize noreturn diagnostics for lambda expressions.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150586 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Specialize the diagnostic complaining about conflicting types ofDouglas Gregor
return statements within a lambda; this diagnostic previously referred to blocks. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150584 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-15Implement DR1454. This allows all intermediate results in constant expressionsRichard Smith
to be core constant expressions (including pointers and references to temporaries), and makes constexpr calculations Turing-complete. A Turing machine simulator is included as a testcase. This opens up the possibilty of removing CCValue entirely, and removing some copies from the constant evaluator in the process, but that cleanup is not part of this change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150557 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Implement C++ core issue 974, which permits default arguments forDouglas Gregor
lambda expressions. Because these issue was pulled back from Ready status at the Kona meeting, we still emit an ExtWarn when using default arguments for lambda expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150519 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-14Generalize -Wempty-body: warn when statement body is empty (closes: PR11329)Dmitri Gribenko
* if, switch, range-based for: warn if semicolon is on the same line. * for, while: warn if semicolon is on the same line and either next statement is compound statement or next statement has more indentation. Replacing the semicolon with {} or moving the semicolon to the next line will always silence the warning. Tests from SemaCXX/if-empty-body.cpp merged into SemaCXX/warn-empty-body.cpp. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150515 91177308-0d34-0410-b5e6-96231b3b80d8
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