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path: root/include/clang/Analysis/PathSensitive/RValues.h
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2008-05-09Rename IsPointerType to LVal::IsLValType, and update CFRefCount::EvalSummary ↵Ted Kremenek
to use IsLValType when conjuring symbols for return values (this fixes a bug with an assertion firing in the analyzer when two qualified objective-c types were compared). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50924 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Add lval::ArrayOffset, which represent the locations of entries in an array.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29Added lval::FieldOffset, which represents symbolic lvalues for field offsets ↵Ted Kremenek
from other Lvalues. This removes the failure in null-deref-ps.c (test suite). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50449 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22Added lval type (and tracking) for StringLiterals.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50109 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22Added "nonlval::LValAsInteger" to represent abstract LVals casted to ↵Ted Kremenek
integers, allowing us to track lvals when they are casted back to pointers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50108 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09Bug fix: Don't call RemoveDeadBindings more than once (can kill newly ↵Ted Kremenek
generated values to Block-Level Expressions). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07Renamed ValueManager to BasicValueFactory.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06fix typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05remove the source location arguments to various target query methods.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47954 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28Added checking for undefined results of '<<' and '>>' (shifting by too many ↵Ted Kremenek
bits, etc.) This current implementation only works when both operands are concrete values; later we will add support for symbolic values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47726 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28Renamed "Uninitialized" -> "Undefined" in path-sensitive value tracking engine.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47713 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Major cleanup of the transfer function logic for '&&', '||', and '?'. WeTed Kremenek
now store in the state essentially which branch we took. This removes a bunch of bogus assumptions (and likely bugs), reduces the complexity of the implementation, and facilitates more optimizations. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47613 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Added lazy "symbolication" of parameter variables and global variables.Ted Kremenek
Added recording of divide-by-zero and divide-by-uninitialized nodes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22Added "assumption" logic for lval::FuncVal and lval::GotoLabel, and simplifiedTed Kremenek
assumption logic for lval::DeclVal. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Major cleanup of path-sensitive analysis engine and the current analysisTed Kremenek
based on constant. prop. and limited symbolics. - Renamed class: RValue -> RVal, LValue -> LVal, etc. - Minor method renamings and interface cleanups. - Tightened the RVal "type system" so that UninitializedVal and UnknownVal cannot be cast to LVal or NonLVal. This forces these corner cases values to be explicitly handled early before being dispatched to plug-in transfer function logic. - Major cleanup in the transfer function logic for binary and unary operators. Still fixing some regressions, but we now explicitly handle Uninitialized and Unknown values in a more rigorous way. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Implemented transfer function logic for unary '+'Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Placed transfer function logic for dereferences in its own method, while atTed Kremenek
the same time clearing up some logic of how the unary '*' operator is processed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47356 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19Fixed bug classof() bug with RValues that could cause an UninitializedValTed Kremenek
or UnknownVal to be interpreted as an actual NonLValue/LValue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47304 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19Added boilerplate transfer function support for CallExprs.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47298 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16Further cleanup. Moved definitions for SymbolManager and ValueManager intoTed Kremenek
their own [.cpp;.h] files. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Simplified transfer function logic for ++/-- operators.Ted Kremenek
Added more boilerplate transfer function support for pointer arithmetic. Added more pretty-printing support for symbolic constraints. Added transfer function support for handling enum values. Minor pointer types cleanup in ExplodedGraphImpl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47183 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Added "symbol iterators" for RValues, allowing easy iteration over the symbolsTed Kremenek
referenced by an RValue, instead of having to query the type of the RValue. Modified ValueState::RemoveDeadBindings to also prune dead symbols. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Migrated transfer functions for binary operators for simple value trackingTed Kremenek
from RValues to GRTransferFuncs/GRSimpleVals. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47131 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Migrated transfer functions for unary "~" and "-" to ↵Ted Kremenek
GRTransferFuncs/GRSimpleVals. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Started partitioning of transfer function logic (and thus the policy behind Ted Kremenek
these operations) into GRTransferFuncs and its subclasses. Originally all of this logic was handled by the class RValue, but in reality different analyses will want more flexibility on how they evaluate different values. Transfer functions migrated so far: "Cast" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47125 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Moved Rvalues.h from "Analysis/" to "include/clang/Analysis/PathSensitive".Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47123 91177308-0d34-0410-b5e6-96231b3b80d8
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