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2012-09-16Update the PCH internals documentation to cover chained precompiledDouglas Gregor
headers and modules in more detail. I'd still like to expand on some of the modules-related issues further, but this is a decent start. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163989 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-14Fix copy-paste error in manpage. Should be -stdlib=library.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163914 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Revert "Remove clang man page reference to -Oz. It's not an option we want ↵Ted Kremenek
people to use, and is around for historical reasons." This should be discussed more first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10[analyzer] Make the defaults explicit for each of the new config options.Jordan Rose
Also, document both new inlining options in IPA.txt. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-10Remove clang man page reference to -Oz. It's not an option we want people ↵Ted Kremenek
to use, and is around for historical reasons. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163538 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Adds a first iteration of the basic AST matcher documentation landing page.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163387 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-07Introduces anchors into LibASTMatchersReference.html.Manuel Klimek
This allows linking to LibASTMatchersRefernce.html#<matcher><N>Anchor to link to the N'the declaration of a matcher and automatically expand its documentation. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163386 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Update AddressSanitizer docsAlexey Samsonov
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163303 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Fix a mistake in an HTML example code snippet.Jordan Rose
Caught by Kurt Arnlund! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163286 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-05New clang-check vim integration scriptAlexander Kornienko
Summary: New clang-check vim integration with the 're-run the last invocation when executed from .h file' feature. Reviewers: klimek Reviewed By: klimek CC: cfe-commits Differential Revision: http://llvm-reviews.chandlerc.com/D35 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163211 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31[analyzer] Though C++ inlining is enabled, don't inline ctors and dtors.Jordan Rose
More generally, this adds a new configuration option 'c++-inlining', which controls which C++ member functions can be considered for inlining. This uses the new -analyzer-config table, so the cc1 arguments will look like this: ... -analyzer-config c++-inlining=[none|methods|constructors|destructors] Note that each mode implies that all the previous member function kinds will be inlined as well; it doesn't make sense to inline destructors without inlining constructors, for example. The default mode is 'methods'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163004 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Documentation: correct a typo introduced in r162971.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162975 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-31Documentation: add missing word "accepts".Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162971 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30[analyzer] Make analyzer-ipa=dynamic-bifurcate the default.Anna Zaks
There are two tests regressions that come from the fact that the Retain Count checker does not cancel out inlining of ObjC methods. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162950 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-30Fix missing 'clang' in pragma example in ARC doc.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162933 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-29Clarify the point at which ARC destroys ivars vis-à-visJohn McCall
[super dealloc]. rdar://problem/11141872 git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27This is a temporary solution until we have a better way toManuel Klimek
parse doxygen comments for macros with libclang. I'm not entirely happy about this script, but as it saves a lot of work in keeping the docs up to date with the actual code I think checking it in makes sense. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162690 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[analyzer] Don't inline constructors for objects allocated with operator new.Jordan Rose
Because the CXXNewExpr appears after the CXXConstructExpr in the CFG, we don't actually have the correct region to construct into at the time we decide whether or not to inline. The long-term fix (discussed in PR12014) might be to introduce a new CFG node (CFGAllocator) that appears before the constructor. Tracking the short-term fix in <rdar://problem/12180598>. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-27[analyzer] Update inlining design notes for r162681.Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162688 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-26Update reference docs to latest changes.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162650 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25Stub out a release notes section on -fcatch-undefined-behavior.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162636 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-25Update the user's manual for some of the new -fcatch-undefined-behavior ↵Richard Smith
features. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162635 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Updated LibTooling.html, minor improvements in CommonOptionsParserAlexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162521 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22[analyzer] Restructure discussion of DynamicTypeInfo and RuntimeDefinition.Jordan Rose
Since DynamicTypeInfo is not inherently related to inlining or to dynamic calls, it makes more sense (to me) to discuss it first. Also fix some typos, massage some grammar, and (hopefully) improve precision and clarity. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162365 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22[analyzer] Per feedback, re-structure the docs for ExprInspection checks.Jordan Rose
Also, remove the FIXME about merging -analyzer-stats and the debug.Stats checker. This would be a bad idea because simply running debug.Stats can affect the output of -analyzer-stats. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162364 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22[analyzer] IPA document: address Ted's review comments (pathAnna Zaks
bifurcation) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162343 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22Review, comment, and reformat IPA.txt, including feedback comments.Ted Kremenek
Formatting includes: - removing line wraps (Emacs Cmd-Q), to make text easier to read - provide useful indentation - call out caveats and notes more explictly Stylistically, I prefer the document talk in 3rd person instead of "we". The term "we" is unambiguous, and sometimes refers to different things. I've passed over the existing paragraphs and made them speak more about specific entities that compose the analyzer and what they do (e.g., ExprEngine) instead of "we" referring to the analyzer. Further, I have substituted some vague concepts such as "state" or "program state" and replaced them with their precise implementation counterparts (e.g., ProgramState). This makes the document more technically precise throughout the entire narrative, which would sometimes use vague terms and other times precise terms. I've placed several comments within the document, which can be seen with ***TMK/COMMENT***, which indicate places that need to be enhanced or clarified, or called out as questions about intended bheavior. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162338 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-22[analyzer] Document our debug checkers and ExprInspection's "builtins".Jordan Rose
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162336 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-21[analyzer] Set the default IPA mode to 'basic-inlining', which excludes C++.Jordan Rose
Under -analyzer-ipa=basic-inlining, only C functions, blocks, and C++ static member functions are inlined -- essentially, the calls that behave like simple C function calls. This is essentially the behavior in Xcode 4.4. C++ support still has some rough edges, and we don't want users to be worried about them if they download and run their own checker. (In particular, the massive number of false positives for analyzing LLVM comes from inlining defensively-written code in contexts where more aggressive assumptions are implicitly made. This problem is not unique to C++, but it is exacerbated by the higher proportion of code that lives in header files in C++.) The eventual goal is to be comfortable enough with C++ support (and simple Objective-C support) to advance to -analyzer-ipa=inlining as the default behavior. See the IPA design notes for more details. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162318 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20Fix a pair of bugs relating to properties in ARC.John McCall
First, when synthesizing an explicitly strong/retain/copy property of Class type, don't pretend during compatibility checking that the property is actually assign. Instead, resolve incompatibilities by secretly changing the type of *implicitly* __unsafe_unretained Class ivars to be strong. This is moderately evil but better than what we were doing. Second, when synthesizing the setter for a strong property of non-retainable type, be sure to use objc_setProperty. This is possible when the property is decorated with the NSObject attribute. This is an ugly, ugly corner of the language, and we probably ought to deprecate it. The first is rdar://problem/12039404; the second was noticed by inspection while fixing the first. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162244 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-20Adds the most requested doc for the AST matchers: a referenceManuel Klimek
of matchers, categorized by type and fully expanded for the context in which they can be used. I used a script to generate this documentation which I'll want to be scrunitized by a code review before checking it in. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Add release notes for type safety attributes.Dmitri Gribenko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162102 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17[analyzer] Add an internal reference document describing IPA and CallEvent.Jordan Rose
This attempts to be a higher-level description of our inlining heuristics and decision trees than the source, where the work is spread out between ExprEngine (mostly in ExprEngineCallAndReturn.cpp) and CallEvent, with a few other classes participating as well. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162073 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-17Add support for "type safety" attributes that allow checking that 'void *'Dmitri Gribenko
function arguments and arguments for variadic functions are of a particular type which is determined by some other argument to the same function call. Usecases include: * MPI library implementations, where these attributes enable checking that buffer type matches the passed MPI_Datatype; * for HDF5 library there is a similar usecase as MPI; * checking types of variadic functions' arguments for functions like fcntl() and ioctl(). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@162067 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14Added description of clang-check -ast-dump* options.Alexander Kornienko
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161861 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14Emphasize that clang-fixit is planned but not yet contributed. I shouldChandler Carruth
really just push the initial version.... git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161858 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14Fix some of my terrible spelling.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161856 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-14Add initial documentation about the new tools repository and theChandler Carruth
structure of how we're building concrete tools as well as tooling infrastructure as part of the Clang project. This documentation is definitely still rough. If anyone can improve it, flesh it out, or help structure it in a more natural way, please, help! =] This is not my forte, and patches here are more than welcome! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161855 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-13Minor rework of code example for clarity. No functionality changeMarshall Clow
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161776 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-05Add __builtin_readcyclecounter() to produce the @llvm.readcyclecounter() ↵Hal Finkel
intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161310 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-31Fix some minor typosSylvestre Ledru
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161036 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-25Fix two typos in the docSylvestre Ledru
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-25Adds a introductionary document to the Clang AST.Manuel Klimek
Next steps are adding information about types & source location handling. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160708 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-23Fix a typo (the the => the)Sylvestre Ledru
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160622 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-20Re-apply r160319 "Don't crash when emitting fixits following Unicode chars"Jordan Rose
This time, make sure we don't try to print fixits with newline characters, since they don't have a valid column width, and they don't look good anyway. PR13417 (and originally <rdar://problem/11877454>) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160561 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-20Revert r160319, it caused PR13417. Add a test for PR13417.Nico Weber
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160542 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17Minor cleanups and additions to the users manual. UsersManual.html now ↵Dmitri Gribenko
validates as HTML 4.01 Strict. Patch by Jonathan Sauer! (With minor edits from me.) git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160386 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-16Don't crash when emitting fixits following Unicode characters.Jordan Rose
This code is very sensitive to the difference between "columns" as printed and "bytes" (SourceManager columns). All variables are now named explicitly and our assumptions are (hopefully) documented as both comment and assertion. Whether parseable fixits should use byte offsets or Unicode character counts is pending discussion on the mailing list; currently the implementation uses bytes (and has no problems on lines containing multibyte characters). This has been added to the user manual. <rdar://problem/11877454> git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160319 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-13Mention -ftls-model in release notes and manual.Hans Wennborg
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160169 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-12Updates the example to the latest incarnation of clang-check andManuel Klimek
adds a paragraph on builtin headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160138 91177308-0d34-0410-b5e6-96231b3b80d8
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