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2013-05-04Added a function to check whether a Decl is inSean Callanan
the list of Decls for a given DeclContext. This is useful for LLDB's implementation of FindExternalLexicalDecls. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181093 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Simplify slightly.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181092 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04Separate out and special-case the diagnostic for 'auto' in aRichard Smith
conversion-type-id, in preparation for this becoming valid in c++1y mode. No functionality change; small diagnostic improvement. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181089 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer;alternate edges] start experimenting with control flow "barriers" ↵Ted Kremenek
to prevent an edge being optimized away. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181088 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer;alternate edges] ignore parentheses when determining edge levels.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181087 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer; alternate edges] - eliminate unnecessary edges where between ↵Ted Kremenek
parents and subexpressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181086 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer; alternate edges] - merge control edges where we descend to a ↵Ted Kremenek
subexpression and pop back out. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181085 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer; alternate edges] prune edges whose end/begin locations have the ↵Ted Kremenek
same statement parents. This change required some minor changes to LocationContextMap to have it map from PathPieces to LocationContexts instead of PathDiagnosticCallPieces to LocationContexts. These changes are in the other diagnostic generation logic as well, but are functionally equivalent. Interestingly, this optimize requires delaying "cleanUpLocation()" until later; possibly after all edges have been optimized. This is because we need PathDiagnosticLocations to refer to the semantic entity (e.g. a statement) as long as possible. Raw source locations tell us nothing about the semantic relationship between two locations in a path. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181084 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[analyzer;alternate edges] - add in events (loop iterations, etc)Ted Kremenek
These were being dropped due a transcription mistake from the original algorithm. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181083 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-04[doc parsing]: Make warning about unknown commandFariborz Jahanian
tags off by default for now. Move diagnostic code to DiagnosticCommentKinds.td. // rdar://12381408 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181081 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03ArrayRef'ize MultiLevelTemplateArgumentList::ArgList. Patch by Faisal Vali!Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181077 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03<rdar://problem/13806270> A template argument list is a constant-evaluated ↵Douglas Gregor
context. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181076 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Revert r177218.Argyrios Kyrtzidis
Per discussion in cfe-commits, asserting may be a better way than introducing a special test flag. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181073 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[Doc parsing] Provide diagnostics for unknown documentation Fariborz Jahanian
commands. // rdar://12381408 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181071 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Remove DiagnosticConsumer::clone(), a bad idea that is now unused.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181070 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03When building a module, forward diagnostics to the outer diagnostic consumer.Douglas Gregor
Previously, we would clone the current diagnostic consumer to produce a new diagnostic consumer to use when building a module. The problem here is that we end up losing diagnostics for important diagnostic consumers, such as serialized diagnostics (where we'd end up with two diagnostic consumers writing the same output file). With forwarding, the diagnostics from all of the different modules being built get forwarded to the one serialized-diagnostic consumer and are emitted in a sane way. Fixes <rdar://problem/13663996>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181067 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[Preprocessor] For the MacroExpands preprocessor callback, also pass the ↵Argyrios Kyrtzidis
MacroArgs object that provides information about the argument tokens for a function macro. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181065 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Rename ObjCImplementationDecl::getSuperLoc() -> getSuperClassLoc() for ↵Argyrios Kyrtzidis
consistency with ObjCInterfaceDecl::getSuperClassLoc() git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181064 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Test commitWei Pan
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181057 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Reapply r180982 with repaired logic and an additional testcase.Adrian Prantl
Un-break the gdb buildbot. - Use the debug location of the return expression for the cleanup code if the return expression is trivially evaluatable, regardless of the number of stop points in the function. - Ensure that any EH code in the cleanup still gets the line number of the closing } of the lexical scope. - Added a testcase with EH in the cleanup. rdar://problem/13442648 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181056 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Serialization for captured statementsBen Langmuir
Add serialization for captured statements and captured decls. Also add a const_capture_iterator to CapturedStmt. Test contributed by Wei Pan Differential Revision: http://llvm-reviews.chandlerc.com/D727 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181048 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03PR15906: The body of a lambda is not an evaluated subexpression; don't visit ↵Richard Smith
it when visiting such subexpressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181046 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Move CapturedStmt parameters to CapturedDeclBen Langmuir
Move the creation of CapturedStmt parameters out of CodeGen and into Sema, making it easier to customize the outlined function. The ImplicitParamDecls are stored in the CapturedDecl using an ASTContext-allocated array. Differential Revision: http://llvm-reviews.chandlerc.com/D722 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181043 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Restore Richard's belief in me.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181042 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[analyzer] Start hacking up alternate control-flow edge generation. WIP. ↵Ted Kremenek
Not guaranteed to do anything useful yet. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181040 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Keep track of an @implementation's super class name location, if one was ↵Argyrios Kyrtzidis
provided. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181039 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Micro-optimization: check the overloaded operator kind beforeJohn McCall
checking for a lambda. Thanks to Jordan for the pointer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181031 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Remove svn:eol-style property set in r180918 and r181004Hans Wennborg
git-svn accidentally added these for me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181023 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03ArrayRef'ize InitializationSequence constructor and ↵Dmitri Gribenko
InitializationSequence::Diagnose() Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181022 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Initialize WarnOnSpellCheck.Rafael Espindola
Clang always calls setWarnOnSpellCheck, but we shouldn't require every client to do so. Issue noticed by Enea Zaffanella. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181021 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Add space between ; and (.Daniel Jasper
Before: for (int i = 0;(i < 10); ++i) {} After: for (int i = 0; (i < 10); ++i) {} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181020 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Fix expression recognition in for-loops.Daniel Jasper
Before: for (; a&& b;) {} After: for (; a && b;) {} git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181017 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Add const qualifier to Sema::getTypeName's parameter `II`Dmitri Gribenko
Patch by Ismail Pazarbasi. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181011 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Add support for -march=btver2.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181006 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Support __wchar_t in -fms-extensions and -fms-compatibility modes.Hans Wennborg
MSVC provides __wchar_t, either as an alias for the built-in wchar_t type, or as a separate type depending on language (C vs C++) and flags (-fno-wchar). In -fms-extensions, Clang will simply accept __wchar_t as an alias for whatever type is used for wide character literals. In -fms-compatibility, we try to mimic MSVC's behavior by always making __wchar_t a builtin type. This fixes PR15815. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181004 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Correctly emit certain implicit references to 'self' even withinJohn McCall
a lambda. Bug #1 is that CGF's CurFuncDecl was "stuck" at lambda invocation functions. Fix that by generally improving getNonClosureContext to look through lambdas and captured statements but only report code contexts, which is generally what's wanted. Audit uses of CurFuncDecl and getNonClosureAncestor for correctness. Bug #2 is that lambdas weren't specially mapping 'self' when inside an ObjC method. Fix that by removing the requirement for that and using the normal EmitDeclRefLValue path in LoadObjCSelf. rdar://13800041 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181000 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[analyzer] Check the stack frame when looking for a var's initialization.Jordan Rose
FindLastStoreBRVisitor is responsible for finding where a particular region gets its value; if the region is a VarRegion, it's possible that value was assigned at initialization, i.e. at its DeclStmt. However, if a function is called recursively, the same DeclStmt may be evaluated multiple times in multiple stack frames. FindLastStoreBRVisitor was not taking this into account and just picking the first one it saw. <rdar://problem/13787723> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180997 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[analyzer] Fix trackNullOrUndef when tracking args that have nil receivers.Jordan Rose
There were actually two bugs here: - if we decided to look for an interesting lvalue or call expression, we wouldn't go find its node if we also knew we were at a (different) call. - if we looked through one message send with a nil receiver, we thought we were still looking at an argument to the original call. Put together, this kept us from being able to track the right values, which means sub-par diagnostics and worse false-positive suppression. Noticed by inspection. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180996 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Revert "Attempt to un-break the gdb buildbot."Adrian Prantl
This reverts commit 180982. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180990 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Make cleanUpLocation() a self-contained function.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180986 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03[ms-cxxabi] Emit non-virtual member function pointersReid Kleckner
Without any conversion, this is pretty straightforward. Most of the fields can be zeros. The order is: - field offset or pointer - nonvirtual adjustment (for MI functions) - vbptr offset (for unspecified) - virtual adjustment offset (for virtual inheritance) Differential Revision: http://llvm-reviews.chandlerc.com/D699 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180985 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Attempt to un-break the gdb buildbot.Adrian Prantl
- Use the debug location of the return expression for the cleanup code if the return expression is trivially evaluatable, regardless of the number of stop points in the function. - Ensure that any EH code in the cleanup still gets the line number of the closing } of the lexical scope. - Added a testcase with EH in the cleanup. rdar://problem/13442648 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180982 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Re-apply 180974 with the build error fixed. This was the resultTed Kremenek
of a weird merge error with git. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180981 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Revert "Change LocationContextMap to be a temporary instead of shared ↵Rafael Espindola
variable in BugReporter." This reverts commit 180974. It broke the build. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180979 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-03Move parsing of identifiers in MS-style inline assembly intoJohn McCall
the actual parser and support arbitrary id-expressions. We're actually basically set up to do arbitrary expressions here if we wanted to. Assembly operands permit things like A::x to be written regardless of language mode, which forces us to embellish the evaluation context logic somewhat. The logic here under template instantiation is incorrect; we need to preserve the fact that an expression was unevaluated. Of course, template instantiation in general is fishy here because we have no way of delaying semantic analysis in the MC parser. It's all just fishy. I've also fixed the serialization of MS asm statements. This commit depends on an LLVM commit. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180976 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Change LocationContextMap to be a temporary instead of shared variable in ↵Ted Kremenek
BugReporter. BugReporter is used to process ALL bug reports. By using a shared map, we are having mappings from different PathDiagnosticPieces to LocationContexts well beyond the point where we are processing a given report. This state is inherently error prone, and is analogous to using a global variable. Instead, just create a temporary map, one per report, and when we are done with it we throw it away. No extra state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180974 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Use attribute argument information to determine when to parse attribute ↵Douglas Gregor
arguments as expressions. This change partly addresses a heinous problem we have with the parsing of attribute arguments that are a lone identifier. Previously, we would end up parsing the 'align' attribute of this as an expression "(Align)": template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align((Align)))) char storage[Size]; }; while this would parse as a "parameter name" 'Align': template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align(Align))) char storage[Size]; }; The code that handles the alignment attribute would completely ignore the parameter name, so the while the first of these would do what's expected, the second would silently be equivalent to template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align)) char storage[Size]; }; i.e., use the maximal alignment rather than the specified alignment. Address this by sniffing the "Args" provided in the TableGen description of attributes. If the first argument is "obviously" something that should be treated as an expression (rather than an identifier to be matched later), parse it as an expression. Fixes <rdar://problem/13700933>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180973 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Revert r180970; it's causing breakage.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180972 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Use attribute argument information to determine when to parse attribute ↵Douglas Gregor
arguments as expressions. This change partly addresses a heinous problem we have with the parsing of attribute arguments that are a lone identifier. Previously, we would end up parsing the 'align' attribute of this as an expression "(Align)": template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align((Align)))) char storage[Size]; }; while this would parse as a "parameter name" 'Align': template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align(Align))) char storage[Size]; }; The code that handles the alignment attribute would completely ignore the parameter name, so the while the first of these would do what's expected, the second would silently be equivalent to template<unsigned Size, unsigned Align> class my_aligned_storage { __attribute__((align)) char storage[Size]; }; i.e., use the maximal alignment rather than the specified alignment. Address this by sniffing the "Args" provided in the TableGen description of attributes. If the first argument is "obviously" something that should be treated as an expression (rather than an identifier to be matched later), parse it as an expression. Fixes <rdar://problem/13700933>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180970 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02Remove redundant flag.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@180968 91177308-0d34-0410-b5e6-96231b3b80d8
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