Updating LibASTMatchersReference

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178234 91177308-0d34-0410-b5e6-96231b3b80d8
Add support for gcc-compatible -mpopcntd -mno-popcntd PPC options

gcc provides -mpopcntd and -mno-popcntd for controlling the popcntd target
feature; support these options as well.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178235 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] For now assume all standard global 'operator new' functions allocate memory in heap.
+ Improved test coverage for cplusplus.NewDelete checker.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178244 91177308-0d34-0410-b5e6-96231b3b80d8
These are all simple pointer wrappers. Pass them by value.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178247 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] These implements unix.MismatchedDeallocatorChecker checker.
+ Improved display names for allocators and deallocators

The checker checks if a deallocation function matches allocation one. ('free' for 'malloc', 'delete' for 'new' etc.)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178250 91177308-0d34-0410-b5e6-96231b3b80d8
Fix order of initialization warning.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178255 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed handling of comments before preprocessor directives.

Comments before preprocessor directives used to be stored with InPPDirective
flag set, which prevented correct comment splitting in this case. Fixed by
flushing comments before switching on InPPDirective. Added a new test and fixed
one of the existing tests.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178261 91177308-0d34-0410-b5e6-96231b3b80d8
Add CFG logic to create a conditional branch for modeling static initializers.

This is an optional variant of the CFG.  This allows analyses to model whether
or not a static initializer has run, e.g.:

  static Foo x = bar();

For basic dataflow analysis in Sema we will just assume that the initializer
always runs.  For the static analyzer we can use this branch to accurately
track whether or not initializers are on.

This patch just adds the (opt-in) functionality to the CFG.  The
static analyzer still needs to be modified to adopt this feature.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178263 91177308-0d34-0410-b5e6-96231b3b80d8
Use early return in printing logic.  Minor cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178264 91177308-0d34-0410-b5e6-96231b3b80d8
Rename LinuxDistro to Distro.

The concept of such a software distribution is not tied to the Linux kernel;
for example Debian GNU/Linux, Debian GNU/Hurd, and Debian GNU/kFreeBSD all
share the same source packages and generally the same user-space configuration.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178270 91177308-0d34-0410-b5e6-96231b3b80d8
Rename clang::driver::tools::linuxtools to clang::driver::tools::gnutools.

This is about the GNU Binutils' assembler and linker, so reflect that in the
name.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178272 91177308-0d34-0410-b5e6-96231b3b80d8
Implemented a warning when an input several bitwise operations are
likely be implicitly truncated:

  * All forms of Bitwise-and, bitwise-or, and integer multiplication.
  * The assignment form of integer addition, subtraction, and exclusive-or
  * The RHS of the comma operator
  * The LHS of left shifts.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178273 91177308-0d34-0410-b5e6-96231b3b80d8
Provide a fixit to static_cast for reinterpret_casts within a class hierarchy.

The suggestion was already in the text of the note; this just adds the
actual fixit and the appropriate test cases.

Patch by Alexander Zinenko!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178274 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C: Provide fixit suggestions when class object
is accessed via accessing 'isa' ivar to use
object_getClass/object_setClass apis.
// rdar://13503456


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178282 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-cxxabi] Correctly compute the size of member pointers

Summary:
This also relaxes the requirement on Windows that the member pointer
class type be a complete type (http://llvm.org/PR12070).  We still ask
for a complete type to instantiate any templates (MSVC does this), but
if that fails we continue as normal, relying on any inheritance
attributes on the declaration.

Reviewers: rjmccall

CC: triton, timurrrr, cfe-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D568

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178283 91177308-0d34-0410-b5e6-96231b3b80d8
[sema] Remove unused variable from r178283

Wouldn't it be cool if we had a compiler for Windows that could warn
about these things?

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178289 91177308-0d34-0410-b5e6-96231b3b80d8
Warn about more than the first unused variable when -Werror is set.

To do this, thread DiagnosticErrorTrap's hasUnrecoverableErrorOccurred through
to Scope.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178294 91177308-0d34-0410-b5e6-96231b3b80d8
[sema] Check the result of getAsCXXRecordDecl() to fix the build

I'm not 100% sure what should happen here to find the real
CXXRecordDecl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178297 91177308-0d34-0410-b5e6-96231b3b80d8
[ms-cxxabi] Add more tests for r178297

This covers a few cases where the class of a member pointer is not a
CXXRecordDecl.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178307 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Apply the suppression rules to the nil receiver only if the value participates in the computation of the nil we warn about.

We should only suppress a bug report if the IDCed or null returned nil value is directly related to the value we are warning about. This was
not the case for nil receivers - we would suppress a bug report that had an IDCed nil receiver on the path regardless of how it’s
related to the warning.

1) Thread EnableNullFPSuppression parameter through the visitors to differentiate between tracking the value which
is directly responsible for the bug and other values that visitors are tracking (ex: general tracking of nil receivers).
2) in trackNullOrUndef specifically address the case when a value of the message send is nil due to the receiver being nil.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178309 91177308-0d34-0410-b5e6-96231b3b80d8