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llvm-svn: 171788
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into doctree.
llvm-svn: 171786
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This is just the output of sphinx-quickstart. Now all that is needed
to begin converting the analyzer docs to reST is the server-side setup.
The analyzer folks have asked me to keep this segregated from the other
clang docs since the analyzer is a logically separate project (and has
its own separate web page) even though it resides in the clang tree.
llvm-svn: 171425
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As per Ted's advice. It can be brought back from version control if
needed.
This also fixes a Sphinx warning.
llvm-svn: 170401
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The file still exists in docs/analyzer/, but it won't be linked to from
clang.llvm.org or processed as part of the default Sphinx doc-build.
RegionStore has changed a lot from what Ted and Zhongxing describe here!
llvm-svn: 170260
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Also, document both new inlining options in IPA.txt.
llvm-svn: 163551
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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'.
llvm-svn: 163004
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There are two tests regressions that come from the fact that the Retain
Count checker does not cancel out inlining of ObjC methods.
llvm-svn: 162950
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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>.
llvm-svn: 162689
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llvm-svn: 162688
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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.
llvm-svn: 162365
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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.
llvm-svn: 162364
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bifurcation)
llvm-svn: 162343
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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.
llvm-svn: 162338
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llvm-svn: 162336
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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.
llvm-svn: 162318
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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.
llvm-svn: 162073
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