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2012-12-03Make hasDeclaration work for enums.Daniel Jasper
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169129 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
2012-12-02[ubsan] Add flag to enable recovery from checks when possible.Will Dietz
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169114 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Make helper classes anonymous. Make helper functions static instead of ↵Benjamin Kramer
private members so the anonymous class doesn't leak out. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169099 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01[MIPS] Add -mxgot/-mno-xgot command line optionsSimon Atanasyan
to enable/disable support of GOT larger than 64k. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169098 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Include pruning and general cleanup.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169095 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Don't include Type.h in DeclarationName.h.Benjamin Kramer
Recursively prune some includes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169094 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Make ASTVector.h standalone without including all of ASTContext.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169093 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Pull the Attr iteration parts out of Attr.h, so including DeclBase.h doesn't ↵Benjamin Kramer
pull in all the generated Attr code. Required to pull some functions out of line, but this shouldn't have a perf impact. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169092 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
2012-12-01Make these functions more clearly express the test they are performing. No ↵Richard Smith
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169077 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-01Consistently use 'needsImplicit<special member>' to determine whether we needRichard Smith
an implicit special member, rather than sometimes using '!hasDeclared<special member>'. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169075 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
2012-11-30Actually keep track of the source locations at which particular moduleDouglas Gregor
files are loaded. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169027 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
2012-11-30Allow matchers to access the ASTContext.Manuel Klimek
Patch by Edwin Vane. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169000 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Update to reflect the change of macro name in r168993.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168994 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Refactor to reduce duplication in handling of special member functions. No ↵Richard Smith
functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168977 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-30Use the new LLVM_LVALUE_FUNCTION to ban two getAs() calls on rvalues.Jordan Rose
If 'x' is a temporary, x.getAs<Foo>() may not be safe if the result is supposed to persist (if its address is stored somewhere). Since getAs() can return a null value, the result is almost always stored into a variable, which of course is not safe when the original value dies. This has caused several bugs with GCC's "Temporaries May Vanish Sooner Than You Expect" optimization; in C++11 builds, at least, we'll be able to catch these problems now. I would suggest applying these to other getAs() and get*As() methods (castAs is "better" because sometimes the result is used directly, which means the temporary will still be live), but these two have both caused trouble in the analyzer in the past. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168967 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Keep track of modules that have failed to build. If we encounter anDouglas Gregor
import of that module elsewhere, don't try to build the module again: it won't work, and the experience is quite dreadful. We track this information somewhat globally, shared among all of the related CompilerInvocations used to build modules on-the-fly, so that a particular Clang instance will only try to build a given module once. Fixes <rdar://problem/12552849>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168961 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
2012-11-29Merge function types in C.Rafael Espindola
Among other differences, GCC accepts typedef int IA[]; typedef int A10[10]; static A10 *f(void); static IA *f(void); void g(void) { (void)sizeof(*f()); } but clang used to reject it with: invalid application of 'sizeof' to an incomplete type 'IA' (aka 'int []') The intention of c99's 6.2.7 seems to be that we should use the composite type and accept as gcc does. Doing the type merging required some extra fixes: * Use the type from the function type in initializations, even if an parameter is available. * Fix the merging of the noreturn attribute in function types. * Make CodeGen handle the fact that an parameter type can be different from the corresponding type in the function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168895 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
2012-11-29The declaration of a special member can require overload resolution to beRichard Smith
performed, to determine whether that special member is deleted or constexpr. That overload resolution process can in turn trigger the instantiation of a template, which can do anything, including triggering the declaration of that very same special member function. When this happens, do not try to recursively declare the special member -- that's impossible. Instead, only try to realise the truth. There is no special member. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168847 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-29Change SValBuilder::getConditionType() to return BoolTy in C++. Fixes ↵Ted Kremenek
<rdar://problem/12772656>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168846 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Implement C++11 [dcl.attr.grammar] p4: If an attribute-specifier-seq ↵Michael Han
appertains to a friend declaration, that declaration shall be a definition. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168826 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28objective-C blocks: Make sure that identical logic is usedFariborz Jahanian
in deciding a copy/dispose field is needed in a byref structure and when generating the copy/dispose helpers. In certain cases, these fields were being added but no copy/dispose was being generated. This was uncovered in ARC, but not in MRR. // rdar://12759433 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168825 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
2012-11-28PR14388: An array or function type in an exception specification should beRichard Smith
decayed to a pointer type. Patch by WenHan Gu, with a little tweaking and additional testcases by me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168822 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Store on the CXXRecordDecl whether the class has, or would have, a copyRichard Smith
constructor/assignment operator with a const-qualified parameter type. The prior method for determining this incorrectly used overload resolution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168775 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Introduce ASTUnresolvedSet, an UnresolvedSet-like class, whose contents areArgyrios Kyrtzidis
allocated using the allocator associated with an ASTContext. Use this inside CXXRecordDecl::DefinitionData instead of an UnresolvedSet to avoid a potential memory leak. rdar://12761275 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168771 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-28Don't return a pointer to an UnresolvedSetImpl in the CXXRecordDecl interface,Argyrios Kyrtzidis
expose only the iterators instead. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168770 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
2012-11-27Move PrettyStackTraceParserEntry to ParseAST.cppNico Weber
r128056 moved PrettyStackTraceParserEntry construction from Parser.h to ParseAST.cpp, so there's no need to keep this class in a header. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168731 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Allow an ASTConsumer to selectively skip function bodies while parsing. PatchRichard Smith
by Olivier Goffart! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168726 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-27Remove some dead code. CLANG_IS_PRODUCTION is now just a build flag andRafael Espindola
is not used in any #ifdef. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168703 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
2012-11-26Improve diagnostic on C++11 attribute specifiers that appear at wrong ↵Michael Han
syntactic locations around class specifiers. This change list implemented logic that explicitly detects several combinations of locations where C++11 attribute specifiers might be incorrectly placed within a class specifier. Previously we emit generic diagnostics like "expected identifier" for such cases; now we emit specific diagnostic against the misplaced attributes, this also fixed a bug in old code where attributes appear at legitimate locations were incorrectly rejected. Thanks to Richard Smith for reviewing! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168626 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
2012-11-23Sema: Provide a valid source location when instantiating templates based on ↵Benjamin Kramer
a CXXDefaultArgExpr. Fixes PR13758. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168521 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
2012-11-22Fix CXXRecordDecl::forallBases to not look through bases which are dependentRichard Smith
and defined within the current instantiation, but which are not part of the current instantiation. Previously, it would look at bases which could be specialized separately from the current template. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168477 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Fix the '-fuse-init-array' option to actually be an option.Chandler Carruth
Previously, this flag to CC1 was never exposed at the clang driver layer, and if you happened to enable it (by being on Android or GCC 4.7 platform), you couldn't *disable* it, because there was no 'no' variant. The whole thing was confusingly implemented. Now, the target-specific flag processing gets the driver arg list, and we use standard hasFlag with a default based on the GCC version and/or Android platform. The user can still pass the 'no-' variant to forcibly disable the flag, or pass the positive variant to clang itself to enable the flag. The test has also been substantially cleaned up and extended to cover these use cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168473 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-20Don't walk a linked list twice in the same function. On my machine this takesRafael Espindola
"clang -cc1" on a file with 10k repetitions of extern int no_such_variable; from 1.434s to 1.133s. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168394 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-19PR14381: Never skip constexpr function bodies when code-completing. We may needRichard Smith
them in order to parse the rest of the file. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@168327 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