History log of /external/clang/lib/StaticAnalyzer/Core/Environment.cpp
Revision Date Author Comments (<<< Hide modified files) (Show modified files >>>)
dc84cd5efdd3430efb22546b4ac656aa0540b210 20-Feb-2013 David Blaikie <dblaikie@gmail.com> Include llvm::Optional in clang/Basic/LLVM.h

Post-commit CR feedback from Jordan Rose regarding r175594.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
5251abea41b446c26e3239c8dd6c7edea6fc335d 20-Feb-2013 David Blaikie <dblaikie@gmail.com> Replace SVal llvm::cast support to be well-defined.

See r175462 for another example/more details.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
38f68ef19cb51d5876e9025b5fceb44b33ec9ed7 13-Feb-2013 Jordan Rose <jordan_rose@apple.com> [analyzer] Use Clang's evaluation for global constants and default arguments.

Previously, we were handling only simple integer constants for globals and
the smattering of implicitly-valued expressions handled by Environment for
default arguments. Now, we can use any integer constant expression that
Clang can evaluate, in addition to everything we handled before.

PR15094 / <rdar://problem/12830437>

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
7affe151f5689b2d3547b8947c4099532c78a021 06-Dec-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Remove bindExprAndLocation, which does extra work for no gain.

This feature was probably intended to improve diagnostics, but was currently
only used when dumping the Environment. It shows what location a given value
was loaded from, e.g. when evaluating an LValueToRValue cast.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
a93d0f280693b8418bc88cf7a8c93325f7fcf4c6 01-Dec-2012 Benjamin Kramer <benny.kra@googlemail.com> Include pruning and general cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@169095 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
84c484545c5906ba55143e212b4a5275ab55889f 15-Nov-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Mark symbol values as dead in the environment.

This allows us to properly remove dead bindings at the end of the top-level
stack frame, using the ReturnStmt, if there is one, to keep the return value
live. This in turn removes the need for a check::EndPath callback in leak
checkers.

This does cause some changes in the path notes for leak checkers. Previously,
a leak would be reported at the location of the closing brace in a function.
Now, it gets reported at the last statement. This matches the way leaks are
currently reported for inlined functions, but is less than ideal for both.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
d4ce811ae08398e357c8ce3e707ba5f2aa0041a5 17-Oct-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] When binding to a ParenExpr, bind to its inner expression instead.

This actually looks through several kinds of expression, such as
OpaqueValueExpr and ExprWithCleanups. The idea is that binding and lookup
should be consistent, and so if the environment needs to be modified later,
the code doing the modification will not have to manually look through these
"transparent" expressions to find the real binding to change.

This is necessary for proper updating of struct rvalues as described in
the previous commit.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
e5a934d3c840872d58724383a83443ed38f1d831 13-Oct-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Remove the "direct bindings only" Environment lookup.

This was only used by OSAtomicChecker and makes it more
difficult to update values for expressions that the environment
may look through instead (it's not the same as IgnoreParens).
With this gone, we can have bindExpr bind to the inner
expression that getSVal will find.

Groundwork for <rdar://problem/12137950>

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
31ba6135375433b617a8587ea6cc836a014ebd86 06-Sep-2012 Roman Divacky <rdivacky@freebsd.org> Dont cast away const needlessly. Found by gcc48 -Wcast-qual.


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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
b66529d04727dc686b97ea3d937fc9785792f505 23-Aug-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Support C++ default arguments if they are literal values.

A CXXDefaultArgExpr wraps an Expr owned by a ParmVarDecl belonging to the
called function. In general, ExprEngine and Environment ought to treat this
like a ParenExpr or other transparent wrapper expression, with the inside
expression evaluated first.

However, if we call the same function twice, we'd produce a CFG that contains
the same wrapped expression twice, and we're not set up to handle that. I've
added a FIXME to the CFG builder to come back to that, but meanwhile we can
at least handle expressions that don't need to be explicitly evaluated:
literals. This probably handles many common uses of default parameters:
true/false, null, etc.

Part of PR13385 / <rdar://problem/12156507>

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
69a0e5021c5c49a34aa25cd89b1e613a52097e65 27-Jul-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Look through SubstNonTypeTemplateParmExprs.

We were treating this like a CXXDefaultArgExpr, but
SubstNonTypeTemplateParmExpr actually appears when a template is
instantiated, i.e. we have all the information necessary to evaluate it.
This allows us to inline functions like llvm::array_lengthof.

<rdar://problem/11949235>

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
a2ad394dad8c90fb0374756a331d4a141f4a227d 26-Jul-2012 Ted Kremenek <kremenek@apple.com> Remove the ability to stash arbitrary pointers into UndefinedVal (no longer needed).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160764 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
4ccc4cc5d4e7c5c436d5f45065d3639cfc7c6e48 18-Jul-2012 Jordan Rose <jordan_rose@apple.com> [analyzer] Remove obsolete ObjCPropRef SVal kind.

ObjC properties are handled through their semantic form of ObjCMessageExprs
and their wrapper PseudoObjectExprs, and have been for quite a while. The
syntactic ObjCPropertyRefExprs do not appear in the CFG and are not visited
by ExprEngine.

No functionality change.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
c319c585c0d5899cba0dca2272e6e4909c8b9f16 08-May-2012 Ted Kremenek <kremenek@apple.com> Teach the analyzer about CXXScaleValueInitExpr.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156369 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
1a45a5ff5d495cb6cd9a3d4d06317af79c0f634d 06-Mar-2012 Ted Kremenek <kremenek@apple.com> Add static analyzer support for new NSArray/NSDictionary/NSNumber literals.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
4c62b557e269a27515dfca1f754ae936c8fdb824 28-Feb-2012 Ted Kremenek <kremenek@apple.com> [analyzer] teach analyzer about ObjC literals, thus trimming out a false positive with the malloc() checker involving
comparing literal addresses to nil.

Fixes <rdar://problem/10579586>

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
e739a29c62c67eaec0af5c4d5c75f9e8f11228bd 28-Feb-2012 Ted Kremenek <kremenek@apple.com> [analyzer] Don't generate an explicit ExplodedNode for StringLiterals; have the SVal lazily generated from Environment::getSVal().

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
7f9b1d963d4b7e2faff7305733e3453130b402fe 21-Feb-2012 Ted Kremenek <kremenek@apple.com> Have ScanReachableSymbols reported reachable regions. Fixes a false positive with nested array literals. <rdar://problem/10686586>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151012 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
c35fb7d67d515659ad2325b4f6ec97c9fe64fb63 28-Jan-2012 Benjamin Kramer <benny.kra@googlemail.com> StaticAnalyzer: Move ObjC- and CXX-specific methods out of line so checkers that don't care about the language don't have to pull in all the headers.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
8bef8238181a30e52dea380789a7e2d760eac532 26-Jan-2012 Ted Kremenek <kremenek@apple.com> Change references to 'const ProgramState *' to typedef 'ProgramStateRef'.

At this point this is largely cosmetic, but it opens the door to replace
ProgramStateRef with a smart pointer that more eagerly acts in the role
of reclaiming unused ProgramState objects.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
3026348bd4c13a0f83b59839f64065e0fcbea253 20-Jan-2012 David Blaikie <dblaikie@gmail.com> More dead code removal (using -Wunreachable-code)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@148577 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
256ef642f8feef22fd53be7efa868e8e34752eed 11-Jan-2012 Ted Kremenek <kremenek@apple.com> Remove '#if 0' from ExprEngine::InlineCall(), and start fresh by wiring up inlining for straight C calls.
My hope is to reimplement this from first principles based on the simplifications of removing unneeded node builders
and re-evaluating how C++ calls are handled in the CFG. The hope is to turn inlining "on-by-default" as soon as possible
with a core set of things working well, and then expand over time.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
5eca482fe895ea57bc82410222e6426c09e63284 06-Jan-2012 Ted Kremenek <kremenek@apple.com> [analyzer] Make the entries in 'Environment' context-sensitive by making entries map from
(Stmt*,LocationContext*) pairs to SVals instead of Stmt* to SVals.

This is needed to support basic IPA via inlining. Without this, we cannot tell
if a Stmt* binding is part of the current analysis scope (StackFrameContext) or
part of a parent context.

This change introduces an uglification of the use of getSVal(), and thus takes
two steps forward and one step back. There are also potential performance implications
of enlarging the Environment. Both can be addressed going forward by refactoring the
APIs and optimizing the internal representation of Environment. This patch
mainly introduces the functionality upon when we want to build upon (and clean up).

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
1e705d57f27f6f899882440cbd5b0fbf520e2fe4 23-Sep-2011 Anna Zaks <ganna@apple.com> Move immutable map canonization out of the removeDeadBindings loop (via using ImmutableMapRef). Gives ~2% speedup.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140403 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
5f625712f622f6e57de17b6f7eec242956b993ee 22-Sep-2011 Anna Zaks <ganna@apple.com> ST->scanReachableSymbols() is creating a SubRegionMap (SRM) on every call since one SRM is created in each ScanReachableSymbols instance. Creating the object just once and calling only scan inside the loop gives ~ 14% speed up of the StaticAnalyzer run (Release+Asserts).

Pull out the declaration of the ScanReachableSymbols so that it can be used directly. Document ProgramState::scanReachableSymbols() methods.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140323 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
f8b5aae41e46f94fe90ed5f1ee98f36f0aa59dc9 20-Aug-2011 Ted Kremenek <kremenek@apple.com> [analyzer] Handle reads of ObjCPropertyRefExprs implicitly in Environment. No need to bind an explicit value and create a new node.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
18c66fdc3c4008d335885695fe36fb5353c5f672 16-Aug-2011 Ted Kremenek <kremenek@apple.com> Rename GRState to ProgramState, and cleanup some code formatting along the way.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137665 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
9c378f705405d37f49795d5e915989de774fe11f 13-Aug-2011 Ted Kremenek <kremenek@apple.com> Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
bea2753da897ede723e70bcd17023d050b0603d0 06-Aug-2011 Ted Kremenek <kremenek@apple.com> [analyzer] Change SymbolReaper to store region roots implied by the Environment, allowing it be queried when
determining if symbols derived from regions are still live.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
e3b075b816195e22e3eb0679b0f93c2598aa3663 29-Jul-2011 Chandler Carruth <chandlerc@gmail.com> Remove an unused function (found by Clang's -Wunused-function)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@136434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
882998923889a2fcce9b49696506c499e22cf38f 29-Jul-2011 Ted Kremenek <kremenek@apple.com> [analyzer] Overhaul how the static analyzer expects CFGs by forcing CFGs to be linearized only when used by the static analyzer. This required a rewrite of LiveVariables, and exposed a ton of subtle bugs.

The motivation of this large change is to drastically simplify the logic in ExprEngine going forward.

Some fallout is that the output of some BugReporterVisitors is not as accurate as before; those will
need to be fixed over time. There is also some possible performance regression as RemoveDeadBindings
will be called frequently; this can also be improved over time.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
90e2f534f08c2138008ccc04f6c8c1fa483a40e2 29-Jul-2011 Ted Kremenek <kremenek@apple.com> [analyzer] Teach Environment to not look through MaterializeTemporaryExprs.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
5f9e272e632e951b1efe824cd16acb4d96077930 23-Jul-2011 Chris Lattner <sabre@nondot.org> remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.


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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
03e80030515c800d1ab44125b9052dfffd1bd04c 21-Jun-2011 Douglas Gregor <dgregor@apple.com> Introduce a new AST node describing reference binding to temporaries.

MaterializeTemporaryExpr captures a reference binding to a temporary
value, making explicit that the temporary value (a prvalue) needs to
be materialized into memory so that its address can be used. The
intended AST invariant here is that a reference will always bind to a
glvalue, and MaterializeTemporaryExpr will be used to convert prvalues
into glvalues for that binding to happen. For example, given

const int& r = 1.0;

The initializer of "r" will be a MaterializeTemporaryExpr whose
subexpression is an implicit conversion from the double literal "1.0"
to an integer value.

IR generation benefits most from this new node, since it was
previously guessing (badly) when to materialize temporaries for the
purposes of reference binding. There are likely more refactoring and
cleanups we could perform there, but the introduction of
MaterializeTemporaryExpr fixes PR9565, a case where IR generation
would effectively bind a const reference directly to a bitfield in a
struct. Addresses <rdar://problem/9552231>.




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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
ac73ea8c12772fd0dcec71b83c193a2837de7f8b 10-Jun-2011 Jordy Rose <jediknil@belkadan.com> [analyzer] PR8962 again. Ban ParenExprs (and friends) from block-level expressions (by calling IgnoreParens before adding expressions to blocks). Undo 132769 (LiveVariables' local IgnoreParens), since it's no longer necessary.

Also, have Environment stop looking through NoOp casts; it didn't match the behavior of LiveVariables. And once that's gone, the whole cast block of that switch is unnecessary.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@132840 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
22043b5ad4278cba814608f0368813acfcf24b67 09-Jun-2011 Jordy Rose <jediknil@belkadan.com> [analyzer] Look through __extension__ expressions in a GRState's Environment. Fixes PR8962.


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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
6b4f567109d76ce1f1de289554e35f2a7bbeff6b 27-Apr-2011 Ted Kremenek <kremenek@apple.com> Allow 'Environment::getSVal()' to allow an optional way for checkers to do a direct lookup to values bound to expressions, without
resulting to lazy logic. This is critical for the OSAtomicChecker that does a simulated load on any arbitrary expression.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
e970c60dadaf22019743724bac879dbefbc4f5e3 22-Apr-2011 Ted Kremenek <kremenek@apple.com> Add static analyzer support for C++'0X nullptr. Patch by Jim Goodnow II.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
f111d935722ed488144600cea5ed03a6b5069e8f 15-Apr-2011 Peter Collingbourne <peter@pcc.me.uk> C1X: implement generic selections

As an extension, generic selection support has been added for all
supported languages. The syntax is the same as for C1X.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
f226d18f0f49394cec460699f4268e32bd0ce833 24-Feb-2011 Ted Kremenek <kremenek@apple.com> Fix tiny error in CFG construction for BinaryConditionalOperators, making sure the branch always has two successors. Also teach Environment::getSVal() about OpaqueValueExprs.

This fixes a crash reported in PR9287, and also fixes a false positive involving the value of such ternary
expressions not properly getting propagated.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
370e6e984cc32167228b66eaf9610c010da0d794 19-Feb-2011 Argyrios Kyrtzidis <akyrtzi@gmail.com> [analyzer] Fix crash when analyzing C++ code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126013 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
7ff07dce18a7c693fe1a15bd7b790d8de9d21e92 19-Feb-2011 Argyrios Kyrtzidis <akyrtzi@gmail.com> [analyzer] Fix crash when analyzing C++ code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126007 91177308-0d34-0410-b5e6-96231b3b80d8
/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
9b663716449b618ba0390b1dbebc54fa8e971124 10-Feb-2011 Ted Kremenek <kremenek@apple.com> Split 'include/clang/StaticAnalyzer' into 'include/clang/StaticAnalyzer/Core' and 'include/clang/StaticAnalyzer/Checkers'.

This layout matches lib/StaticAnalyzer, which corresponds to two StaticAnalyzer libraries.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp
811d75ee35b8b061a9b10a4e7b81e0c0eaf739c3 08-Feb-2011 Argyrios Kyrtzidis <akyrtzi@gmail.com> [analyzer] Move the files in lib/StaticAnalyzer to lib/StaticAnalyzer/Core.

Eventually there will also be a lib/StaticAnalyzer/Frontend that will handle initialization and checker registration.
Yet another library to avoid cyclic dependencies between Core and Checkers.

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/external/clang/lib/StaticAnalyzer/Core/Environment.cpp