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2012-12-17Reapply r170344, this time without forgetting to commit the header changes.David Chisnall
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170354 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13Dont use/link ARCMT, StaticAnalyzer and Rewriter to clang when the userRoman Divacky
specifies not to. Dont build ASTMatchers with Rewriter disabled and StaticAnalyzer when it's disabled. Without all those three, the clang binary shrinks (x86_64) from ~36MB to ~32MB (unstripped). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-13ubsan: Add -fsanitize=bool and -fsanitize=enum, which check for loads ofRichard Smith
bit-patterns which are not valid values for enumerated or boolean types. These checks are the ubsan analogue of !range metadata. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170108 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-12[objc] For the ARC error that is emitted when a synthesized property ↵Argyrios Kyrtzidis
implementation has inconsistent ownership with the backing ivar, point the error location to the ivar. Pointing to the ivar (instead of the @synthesize) is better since this is where a fix is needed. Also provide the location of @synthesize via a note. This also fixes the problem where an auto-synthesized property would emit an error without any location. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170039 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Use @import rather than @__experimental_modules_import, since theDouglas Gregor
latter is rather a mess to type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169919 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-11Extend stat query APIs to explicitly specify if the query is forArgyrios Kyrtzidis
a file or directory, allowing just a stat call if a file descriptor is not needed. Doing just 'stat' is faster than 'open/fstat/close'. This has the effect of cutting down system time for validating the input files of a PCH. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169831 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09Virtual method overrides can no longer have mismatched calling conventions. ↵Aaron Ballman
This fixes PR14339. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169705 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-09PR14550: If a system header contains a bogus constexpr function definition,Richard Smith
don't mark the function as invalid, since we suppress the error. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-08Properly compute triviality for explicitly-defaulted or deleted special members.Richard Smith
Remove pre-standard restriction on explicitly-defaulted copy constructors with 'incorrect' parameter types, and instead just make those special members non-trivial as the standard requires. This required making CXXRecordDecl correctly handle classes which have both a trivial and a non-trivial special member of the same kind. This also fixes PR13217 by reimplementing DiagnoseNontrivial in terms of the new triviality computation technology. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169667 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-08Implement C++03 [dcl.init]p5's checking for value-initialization of referencesRichard Smith
properly, rather than faking it up by pretending that a reference member makes the default constructor non-trivial. That leads to rejects-valids when putting such types inside unions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169662 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07Fix analysis based warnings so that all warnings are emitted when compilingDeLesley Hutchins
with -Werror. Previously, compiling with -Werror would emit only the first warning in a compilation unit, because clang assumes that once an error occurs, further analysis is unlikely to return valid results. However, warnings that have been upgraded to errors should not be treated as "errors" in this sense. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169649 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-07Add file missed from r169574!Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169576 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06Simplify PDiag's move assignment overload a bit, the self-move check isn't ↵Benjamin Kramer
actually necessary. This just empties out the diag, which is fine. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169542 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-06Add move semantics to PartialDiagnostic, which can be very expensive to copy.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169535 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05[driver, ms-inline asm] MS-Style inline assembly is controlled by theChad Rosier
-fasm-blocks flag, not the -fms-extensions flag. rdar://12808010 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05Reuse an existing diagnostic for tsan/msan needing -pie error.Evgeniy Stepanov
Add a diagnosting for -fsanitize=memory conflicting with other sanitizers. Extend tests. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169380 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05Simplify slightly by seperating out the responsibility for emission of a caretRichard Smith
diagnostic from the emission of macro backtraces. Incidentally, we now get the displayed source location for a diagnostic and the location for the caret from the same place, rather than computing them separately. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169357 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05Simplify diagnostic emission. No functionality change intended.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169351 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-05Thread safety analysis: Add a new "beta" warning flag: -Wthread-safety-beta.DeLesley Hutchins
As the analysis improves, it will continue to add new warnings that are potentially disruptive to existing users. From now on, such warnings will first be introduced under the "beta" flag. Such warnings are not turned on by default; their purpose is to allow users to test their code against future planned changes, before those changes are actually made. After a suitable migration period, beta warnings will be folded into the standard -Wthread-safety. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169338 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-04Sort #include lines for all files under include/...Chandler Carruth
This is a simpler sort, entirely automatic with the help of llvm/utils/sort_includes.py -- no manual edits here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169238 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-03Add -fsanitize=memory.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169124 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Fix a typo in comment.Michael Han
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169078 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Don't warn if the input size is less than the register size. Also don't warn ifBill Wendling
the output size is greater than the register size. No truncation occurs with those. Reword warning to make it clearer what's the problem is. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169054 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Rename ModuleBuildPath -> ModuleBuildStack. Thanks, Dmitri!Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169045 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30When we're emitting a diagnostic with a source location in an importedDouglas Gregor
module, provide a module import stack similar to what we would get for an include stack, e.g., In module 'DependsOnModule' imported from build-fail-notes.m:4: In module 'Module' imported from DependsOnModule.framework/Headers/DependsOnModule.h:1: Inputs/Module.framework/Headers/Module.h:15:12: note: previous definition is here @interface Module <rdar://problem/12696425> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169042 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30When an error occurs while building a module on demand, provide "WhileDouglas Gregor
building module 'Foo' imported from..." notes (the same we we provide "In file included from..." notes) in the diagnostic, so that we know how this module got included in the first place. This is part of <rdar://problem/12696425>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169021 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29This patch exposes to Clang users three more sanitizers are experimental ↵Alexey Samsonov
features of ASan: 1) init-order sanitizer: initialization-order checker. Status: usable, but may produce false positives w/o proper blacklisting. 2) use-after-return sanitizer Status: implemented, but heavily understed. Should be optional, as it significanlty slows program down. 3) use-after-scope sanitizer Status: in progress. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168950 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Reject uses of __int128 on platforms that don't support it. Also move the uglyRichard Smith
'getPointerWidth(0) >= 64' test to be a method on TargetInfo, ready to be properly cleaned up. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168856 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Fix crash-on-invalid. <rdar://problem/12765391>.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168851 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Per C++11 [except.spec]p2, rvalue references are not permitted in exception ↵Richard Smith
specifications. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168824 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28C++ core issue 1344, PR10618: promote "addition of default argument makes thisRichard Smith
a special member" diagnostic from warning to error, and fix the cases where it produced diagnostics with incorrect wording. We don't support this as an extension, and we ban it even in C++98 mode. This breaks too much (for instance, the ABI-specified calling convention for a type can change if it acquires a copy constructor through the addition of a default argument). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168769 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Add -fsanitize=integer for reporting suspicious integer behaviors.Will Dietz
Introduces new sanitizer "unsigned-integer-overflow". git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168701 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Fix the definition of the vfork() builtin on Haiku. PR14378.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168674 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-24Make err_module_expected_semi consistent with all the other expected_semi diags.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168535 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-23PR14306: Move -fbounds-checking to -fsanitize=bounds.Joey Gouly
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168510 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-19Completely re-work how the Clang driver interprets PIC and PIE options.Chandler Carruth
There were numerous issues here that were all entangled, and so I've tried to do a general simplification of the logic. 1) The logic was mimicing actual GCC bugs, rather than "features". These have been fixed in trunk GCC, and this fixes Clang as well. Notably, the logic was always intended to be last-match-wins like any other flag. 2) The logic for handling '-mdynamic-no-pic' was preposterously unclear. It also allowed the use of this flag on non-Darwin platforms where it has no actual meaning. Now this option is handled directly based on tests of how llvm-gcc behaves, and it is only supported on Darwin. 3) The APIs for the Driver's ToolChains had the implementation ugliness of dynamic-no-pic leaking through them. They also had the implementation details of the LLVM relocation model flag names leaking through. 4) The actual results of passing these flags was incorrect on Darwin in many cases. For example, Darwin *always* uses PIC level 2 if it uses in PIC level, and Darwin *always* uses PIC on 64-bit regardless of the flags specified, including -fPIE. Darwin never compiles in PIE mode, but it can *link* in PIE mode. 5) Also, PIC was not always being enabled even when PIE was. This isn't a supported mode at all and may have caused some fallout in builds with complex PIC and PIE interactions. The result is (I hope) cleaner and clearer for readers. I've also left comments and tests about some of the truly strage behavior that is observed on Darwin platforms. We have no real testing of Windows platforms and PIC, but I don't have the tools handy to figure that out. Hopefully others can beef up our testing here. Unfortunately, I can't test this for every platform. =/ If folks have dependencies on these flags that aren't covered by tests, they may break. I've audited and ensured that all the changes in behavior of the existing tests are intentional and good. In particular I've tried to make sure the Darwin behavior (which is more suprising than the Linux behavior) also matches that of 'gcc' on my mac. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168297 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-18Documentation parsing: propely handle a lone '\endverbatim' and emit a warning.Dmitri Gribenko
We actually used to assert on this. Thanks to NAKAMURA Takumi for noticing this! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168277 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Made the "expected string literal" diagnostic more expressiveAndy Gibbs
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168267 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-17Refactored duplicate string literal lexing code within Preprocessor, into aAndy Gibbs
common LexStringLiteral function. In doing so, some consistency problems have been ironed out (e.g. where the first token in the string literal was lexed with macro expansion, but subsequent ones were not) and also an erroneous diagnostic has been corrected. LexStringLiteral is complemented by a FinishLexStringLiteral function which can be used in the situation where the first token of the string literal has already been lexed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168266 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16Since CreateTargetInfo is taking ownership of the target options, passDouglas Gregor
it as a pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16Remove unused diagnosticsDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15block extended signatur option. Change previous optionFariborz Jahanian
to a cc1 -fencode-extended-block-signature and pass it to cc1 and recognize this option to produce extended block type signature. // rdar://12109031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168063 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Remove unused diagnostics from TableGen files.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168055 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15Make -ffp-contract a codegen option, rather than a laguage option. This makesLang Hames
more sense anyway - it determines how expressions are codegen'd. It also ensures that -ffp-contract=fast has the intended effect when compiling LLVM IR. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168027 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-15objective-C blocks: make cc1 flag -encode-extended-block-signatureFariborz Jahanian
the default. // rdar://12109031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168007 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Add -cc1 option -fno-diagnostics-use-presumed-location, a handy mode forRichard Smith
working with preprocessed testcases. This causes source locations in diagnostics to point at the spelling location instead of the presumed location, while still keeping the semantic effects of the line directives (entering and leaving system-header mode, primarily). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168004 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14objective-C blocks: under cc1 flag -encode-extended-block-signature,Fariborz Jahanian
generate expanded signature encoding to include types as we already do this for protocol method lists. // rdar://12109031 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167997 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-14Use consistent spelling of 'behavior' in a C++ warning.Anders Carlsson
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167902 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13Revert r167801, "[preprocessor] When #including something that contributes noDaniel Dunbar
tokens at all,". This change broke External/Nurbs in LLVM test-suite. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167858 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-13[preprocessor] When #including something that contributes no tokens at all,Argyrios Kyrtzidis
don't recursively continue lexing. This avoids a stack overflow with a sequence of many empty #includes. rdar://11988695 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@167801 91177308-0d34-0410-b5e6-96231b3b80d8
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