Commit Graph

17 Commits

Author SHA1 Message Date
Gabor Horvath 1416d5328a [analyzer] Left shifting a negative value is undefined
The analyzer did not return an UndefVal in case a negative value was left
shifted. I also altered the UndefResultChecker to emit a clear warning in this
case.

Differential Revision: https://reviews.llvm.org/D39423


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@316924 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-30 17:06:42 +00:00
Devin Coughlin 9761e66e32 [analyzer] Add a new SVal to support pointer-to-member operations.
Add a new type of NonLoc SVal for C++ pointer-to-member operations. This SVal
supports both pointers to member functions and pointers to member data.

A patch by Kirill Romanenkov!

Differential Revision: https://reviews.llvm.org/D25475

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289873 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-15 21:27:06 +00:00
Daniel Marjamaki daf37e6527 Fix a crash by division by zero in analyzer
Patch by takeshi-yoshimura!

Differential Revision: http://reviews.llvm.org/D10145


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240643 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-25 14:06:02 +00:00
Alexander Kornienko 8ca7705aa3 Revert r240270 ("Fixed/added namespace ending comments using clang-tidy").
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240353 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 23:07:51 +00:00
Alexander Kornienko ac58acc7f2 Fixed/added namespace ending comments using clang-tidy. NFC
The patch is generated using this command:

  $ tools/extra/clang-tidy/tool/run-clang-tidy.py -fix \
      -checks=-*,llvm-namespace-comment -header-filter='llvm/.*|clang/.*' \
      work/llvm/tools/clang

To reduce churn, not touching namespaces spanning less than 10 lines.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@240270 91177308-0d34-0410-b5e6-96231b3b80d8
2015-06-22 09:47:44 +00:00
Craig Topper 1843a2095a [C++11] Use 'nullptr'. StaticAnalyzer edition.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@209642 91177308-0d34-0410-b5e6-96231b3b80d8
2014-05-27 02:45:47 +00:00
Jordan Rose 5e21db7130 [analyzer] Shitfing a constant value by its bit width is undefined.
Citation: C++11 [expr.shift]p1 (and the equivalent text in C11).

This fixes PR18073, but the right thing to do (as noted in the FIXME) is to
have a real checker for too-large shifts.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@199405 91177308-0d34-0410-b5e6-96231b3b80d8
2014-01-16 18:02:23 +00:00
Jordan Rose 91ab900a93 [analyzer] Disallow creation of int vals with explicit bit width / signedness.
All clients of BasicValueFactory should be using QualTypes instead, and
indeed it seems they are. This caught the (fortunately harmless) bug
fixed in the previous commit.

No intended functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163069 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-01 17:39:24 +00:00
Benjamin Kramer 478851c3ed Drop the ASTContext.h include from Stmt.h and fix up transitive users.
This required moving the ctors for IntegerLiteral and FloatingLiteral out of
line which shouldn't change anything as they are usually called through Create
methods that are already out of line.

ASTContext::Deallocate has been a nop for a long time, drop it from ASTVector
and make it independent from ASTContext.h

Pass the StorageAllocator directly to AccessedEntity so it doesn't need to
have a definition of ASTContext around.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159718 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-04 17:04:04 +00:00
Ted Kremenek 9c378f7054 Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 23:37:29 +00:00
Ted Kremenek 9697934650 [analyzer] Introduce new MemRegion, "TypedValueRegion", so that we can separate TypedRegions that implement getValueType() from those that don't.
Patch by Olaf Krzikalla!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137498 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 20:02:48 +00:00
Douglas Gregor 5e9ebb3c0f A few more is(Un)signedIntegerType/is(Un)signedOrEnumerationType cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@131793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-21 16:28:01 +00:00
Ted Kremenek 2c0af35807 #include Store.h into BasicValueFactory.cpp to provide definitions of StoreRef constructor.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127291 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 23:39:37 +00:00
Ted Kremenek cf33333961 static analyzer: Fix use-after-free bug in RegionStore involving LazyCompoundValueData not reference counting Store objects.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127288 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 23:18:00 +00:00
Zhanyong Wan 7dfc9420ba Makes most methods in SVals.h conform to the naming guide. Reviewed
by kremenek.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16 21:13:32 +00:00
Ted Kremenek 9b66371644 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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125251 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10 01:03:03 +00:00
Argyrios Kyrtzidis 811d75ee35 [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.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08 22:30:36 +00:00