Граф коммитов

5 Коммитов

Автор SHA1 Сообщение Дата
Jordy Rose e701117b21 - Allow making ElementRegions with complex offsets (expressions or symbols) for the purpose of bounds-checking.
- Rewrite GRState::AssumeInBound to actually do that checking, and to use the normal constraint path.
- Remove ConstraintManager::AssumeInBound.
- Teach RegionStore and FlatStore to ignore those regions for now.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111116 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-16 01:15:17 +00:00
Jordy Rose 5ca129c255 Implicitly compare symbolic expressions to zero when they're being used as constraints. Part of PR7491.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106972 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-27 01:20:56 +00:00
Jordy Rose b4954a4175 When folding additive operations, convert the values to the same type. When assuming relationships, convert the integers to the same type as the symbol, at least for now.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106458 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-21 20:15:15 +00:00
Jordy Rose ba0f61cf53 Fold additive constants, and support comparsions of the form $sym+const1 <> const2
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@106339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18 22:49:11 +00:00
Ted Kremenek 1309f9a3b2 Split libAnalysis into two libraries: libAnalysis and libChecker.
(1) libAnalysis is a generic analysis library that can be used by
    Sema.  It defines the CFG, basic dataflow analysis primitives, and
    inexpensive flow-sensitive analyses (e.g. LiveVariables).

(2) libChecker contains the guts of the static analyzer, incuding the
    path-sensitive analysis engine and domain-specific checks.

Now any clients that want to use the frontend to build their own tools
don't need to link in the entire static analyzer.

This change exposes various obvious cleanups that can be made to the
layout of files and headers in libChecker.  More changes pending.  :)

This change also exposed a layering violation between AnalysisContext
and MemRegion.  BlockInvocationContext shouldn't explicitly know about
BlockDataRegions.  For now I've removed the BlockDataRegion* from
BlockInvocationContext (removing context-sensitivity; although this
wasn't used yet).  We need to have a better way to extend
BlockInvocationContext (and any LocationContext) to add
context-sensitivty.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94406 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-25 04:41:41 +00:00