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2013-02-25[analyzer] add the notion of an "interesting" lvalue expression for ↵Ted Kremenek
ExplodedNode pruning. r175988 modified the ExplodedGraph trimming algorithm to retain all nodes for "lvalue" expressions. This patch refines that notion to only "interesting" expressions that would be used for diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176010 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-25Add more attributes from the command line to functions.Bill Wendling
This is an ongoing process. Any command line option which a back-end cares about should be added here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176009 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-25Update Clang for a minor DIBuilder breaking change.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176003 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24Moving initialization into the initializer list and correcting ↵Aaron Ballman
capitalization, as suggested by Chandler. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176001 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24Allow breaking between a type and name in variable declarations.Daniel Jasper
This fixes llvm.org/PR14967 and is generall necessary to avoid situations where the column limit is exceeded. The challenge is restricting such lines splits, otherwise clang-format suddenly starts breaking at bad places. Before: ReallyLongReturnType<TemplateParam1, TemplateParam2> ReallyReallyLongFunctionName( const std::string &SomeParameter, const SomeType<string, SomeOtherTemplateParameter> &ReallyReallyLongParameterName, const SomeType<string, SomeOtherTemplateParameter> &AnotherLongParameterName) {} After: ReallyLongReturnType<TemplateParam1, TemplateParam2> ReallyReallyLongFunctionName( const std::string &SomeParameter, const SomeType<string, SomeOtherTemplateParameter> & ReallyReallyLongParameterName, const SomeType<string, SomeOtherTemplateParameter> & AnotherLongParameterName) {} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175999 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24[analyzer] tracking stores/constraints now works for ObjC ivars or struct ↵Ted Kremenek
fields. This required more changes than I originally expected: - ObjCIvarRegion implements "canPrintPretty" et al - DereferenceChecker indicates the null pointer source is an ivar - bugreporter::trackNullOrUndefValue() uses an alternate algorithm to compute the location region to track by scouring the ExplodedGraph. This allows us to get the actual MemRegion for variables, ivars, fields, etc. We only hand construct a VarRegion for C++ references. - ExplodedGraph no longer drops nodes for expressions that are marked 'lvalue'. This is to facilitate the logic in the previous bullet. This may lead to a slight increase in size in the ExplodedGraph, which I have not measured, but it is likely not to be a big deal. I have validated each of the changed plist output. Fixes <rdar://problem/12114812> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175988 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24Add "KnownSVal" to represent SVals that cannot be UnknownSVal.Ted Kremenek
This provides a few sundry cleanups, and allows us to provide a compile-time check for a case that was a runtime assertion. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175987 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24PR15338: Don't assert if -fsanitize=bounds sees array indexing on an incompleteRichard Smith
array type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175982 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24[preprocessor] Use MacroDirective in the preprocessor callbacks to make ↵Argyrios Kyrtzidis
available the full information about the macro (e.g if it was imported and where). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175978 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-24In Sema::InstantiateStaticDataMemberDefinition, pass the var decl to the ↵Argyrios Kyrtzidis
consumer just using ASTConsumer::HandleCXXStaticMemberVarInstantiation(), don't pass it with ASTConsumer::HandleTopLevelDecl. ASTConsumer::HandleTopLevelDecl is intended for user-written top-level decls; a consumer can treat an instantiated static data member however it wants of course. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Better formatting of conditional expressions.Daniel Jasper
In conditional expressions, if the condition is split over multiple lines, also break before both operands. This prevents formattings like: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ? b : c; Which are bad, because they suggestion incorrect operator precedence: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa == (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ? b : c); This lead to the discovery that the expression parser incorrectly handled conditional operators and that it could also handle semicolons (which in turn reduced the amount of special casing for for-loops). As a side-effect, we can now apply the bin-packing configuration to the sections of for-loops. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Prefer 'and' over '&' in comments.David Blaikie
Post commit code review feedback from Matt Beaumont-Gay on r174248. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175969 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Add streamed versions of getQualifiedNameAsString.Benjamin Kramer
Move the cold virtual method getNameForDiagnostic out of line. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175966 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Don't recognize unnamed pointer parameters as casts.Daniel Jasper
This fixes llvm.org/PR15061. Before: virtual void f(int *)const; After: virtual void f(int *) const; git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175960 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Allow splitting between string literals and identifiers.Daniel Jasper
Also don't break in long include directives as that is not desired. We can now format: #include "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaa" #define LL_FORMAT "ll" printf("aaaaa: %d, bbbbbbbbb: %" LL_FORMAT "d, cccccccc: %" LL_FORMAT "d, ddddddddd: %" LL_FORMAT "d\n"); Before, this led to weird results. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175959 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Implement __builtin_eh_return_data_regno() for ARM and MIPS.Logan Chien
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175954 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23ubsan: Emit bounds checks for array indexing, vector indexing, and (in ↵Richard Smith
really simple cases) pointer arithmetic. This augments the existing bounds checking with language-level array bounds information. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175949 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Remove the CFGElement "Invalid" state.David Blaikie
Use Optional<CFG*> where invalid states were needed previously. In the one case where that's not possible (beginAutomaticObjDtorsInsert) just use a dummy CFGAutomaticObjDtor. Thanks for the help from Jordan Rose & discussion/feedback from Ted Kremenek and Doug Gregor. Post commit code review feedback on r175796 by Ted Kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175938 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Remove the hack that avoided mangling static functions in extern C contexts.Rafael Espindola
Weather we should give C language linkage to functions and variables with internal linkage probably depends on how much code assumes it. The standard says they should have no language linkage, but gcc and msvc assign them C language linkage. This commit removes the hack that was preventing the mangling on static functions declare in extern C contexts. It is an experiment to see if we can implement the rules in the standard. If it turns out that many users depend on these functions and variables having C language linkage, we should change isExternC instead and try to convince the CWG to change the standard. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175937 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-23Revert r175912, "Add support for coldcc to clang" at John's request.Peter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175936 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Propagate the split dwarf file information through into the backendEric Christopher
and through to the debug info in the module. In order to make the testcase a bit more efficient allow the filename to go through compilation for compile and not assemble jobs and turn off the extract for cases where we don't create an object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175935 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[libclang] Fix assertion hit when code-completing inside a function macro ↵Argyrios Kyrtzidis
with more arguments than it should accept. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175925 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22objective-C arg: provide fixit support whenFariborz Jahanian
c++'s named cast need be replaced for bridge casting. // rdar://12788838 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175923 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Driver: Pass down the -march setting down to -cc1as on x86 too.Benjamin Kramer
The assembler historically didn't make use of any target features, but this has changed when support for old CPUs that don't support long nops was added. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175919 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Make sure we apply attributes to correct places.Bill Wendling
Some attributes make sense only on the function or on the call site, but not both. Make this distinction here. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175918 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Split out the command handling for split debug info, we're goingEric Christopher
to want to propagate some information through the module into the back end and so need to pass it through to codegen. Also make the methods file static so we can use them in other places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175916 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[analyzer] Don't canonicalize the RecordDecl used in CXXBaseObjectRegion.Jordan Rose
This Decl shouldn't be the canonical Decl; it should be the Decl used by the CXXBaseSpecifier in the subclass. Unfortunately, that means continuing to throw getCanonicalDecl() on all comparisons. This fixes MemRegion::getAsOffset's use of ASTRecordLayout when redeclarations are involved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175913 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Add support for coldcc to clangPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175912 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[preprocessing record] Have the MacroDefinitions map point to the ↵Argyrios Kyrtzidis
MacroDefinition object instead its index in the preprocessed entities vector. This is because the order of the entities in the vector can change in some (uncommon) cases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175907 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Replace some typically large vectors with SmallVector.Benjamin Kramer
This may seem counter-intuitive but the POD-like optimization helps when the vectors grow into multimegabyte buffers. SmallVector calls realloc which knows how to twiddle virtual memory bits and avoids large copies. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175906 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Make sure pragmas don't attach visibility attributes to auto variables withRafael Espindola
internal linkage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175903 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[Sema] Semantic analysis for empty-declaration and attribute-declaration.Michael Han
Introduce a new AST Decl node "EmptyDecl" to model empty-declaration. Have attributes from attribute-declaration appertain to the EmptyDecl node by creating the AST representations of these attributes and attach them to the EmptyDecl node so these attributes can be sema checked just as attributes attached to "normal" declarations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175900 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Use raw_ostream::indent, update comment.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175897 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Push the raw_ostream through the template diffing code.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175896 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Streamify FormatASTNodeDiagnosticArgument.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175895 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Streamify getNameForDiagnostic and remove the string versions of ↵Benjamin Kramer
PrintTemplateArgumentList. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175894 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Comment parsing: add CommentOptions to allow specifying custom comment block ↵Dmitri Gribenko
commands Add an ability to specify custom documentation block comment commands via a new class CommentOptions. The intention is that this class will hold future customizations for comment parsing, including defining documentation comments with specific numbers of parameters, etc. CommentOptions instance is a member of LangOptions. CommentOptions is controlled by a new command-line parameter -fcomment-block-commands=Foo,Bar,Baz. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175892 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22StmtPrinter: Directly print types to the stream instead of taking a detour ↵Benjamin Kramer
through getAsString. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175891 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Fix MergeFunctionDecl implicit CC for static methods.Timur Iskhodzhanov
Patch by Alexander Zinenko! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175890 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't crash if we try to apply 'alignas' to a variable declared with anRichard Smith
incomplete type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175880 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't accidentally and silently accept C++11 attributes in decl-specifier-seqsRichard Smith
in C++98. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Per the grammar in [dcl.dcl]p1, a simple-declaration can only have attributesRichard Smith
if it has declarators. We were missing the check for this in a couple of places. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175876 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Handle alignas(foo...) pack expansions.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175875 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22In LookupResult::resolveKind(), when handling multiple found declarations, ↵Argyrios Kyrtzidis
ignore invalid declarations. This reduces the "ambiguous reference" errors (which are rather strange in C/ObjC) and fixes an assertion hit with an invalid code test case. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175869 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22When a parameter list in a C function has an error, recover by forming a K&R ↵Argyrios Kyrtzidis
function, instead of a non-function type. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175868 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't crash when applying an alloc_size attribute on a K&R function.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175867 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Don't skip '_Alignas' when disambiguating 'final'. '_Alignas' can't appear here,Richard Smith
and we used to assert if it did. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175866 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Teach -ast-print how to print trailing-return-types.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175864 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22[analyzer] Implement "Loop executed 0 times" diagnostic correctly.Ted Kremenek
Fixes <rdar://problem/13236549> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175863 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-22Implement C++11 [dcl.align]p6-p8, and C11 6.7.5/7. This had to be split out ofRichard Smith
the normal attribute-merging path, because we can't merge alignment attributes without knowing the complete set of alignment attributes which apply to a particular declaration. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175861 91177308-0d34-0410-b5e6-96231b3b80d8
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