Change the ArrayBoundCheckerV2 to be more aggressive in reporting buffer overflows
when the offset is tainted. Previously, we did not report bugs when the state was
underconstrained (not enough information about the bound to determine if there is
an overflow) to avoid false positives. However, if we know that the buffer
offset is tainted - comes in from the user space and can be anything, we should
report it as a bug.

+ The very first example of us catching a taint related bug.
This is the only example we can currently handle. More to come...

llvm-svn: 144826

The checker is responsible for defining attack surface and adding taint to symbols.

llvm-svn: 144825

TaintTag.h will contain definitions of different taint kinds and their properties.
TaintManager will be responsible for implementing taint specific operations, storing taint.
ProgramState will provide API to add/remove taint.

llvm-svn: 144824

llvm-svn: 144823

many checkers are trying to get a name of the callee when visiting
a CallExpr, so provide a convenience API.

llvm-svn: 144820

llvm-svn: 144800

llvm-svn: 144799

header, create our own in-memory buffer to parse all of the
appropriate headers, and use that to build the module. This isn't
end-to-end testable yet; that's coming next.

llvm-svn: 144797

llvm-svn: 144796

llvm-svn: 144789

not safely derived. Don't allow lvalue-to-rvalue conversions on the result of
dereferencing such a pointer.

llvm-svn: 144783

llvm-svn: 144766

llvm-svn: 144745

and remove stray fprintf.

llvm-svn: 144742

interface. This is currently limited to modules with umbrella
headers.

llvm-svn: 144736

In Microsoft mode, make "Unqualified lookup into dependent bases of class templates" works  inside static functions.

llvm-svn: 144729

incrementally with a new frontend action.

llvm-svn: 144723

Compute whether a class is trivial correctly for template classes with an explicitly deleted or defaulted special member.  PR11387.

llvm-svn: 144715

differing from GeneratePCHAction fairly soon.

llvm-svn: 144703

llvm-svn: 144700

building modules.

llvm-svn: 144680

llvm-svn: 144672

warnings/errors for unknown warning options.  getDiagnosticsInGroup returns false if the 
diagnostics is found and true otherwise.  Thus, if we're reporting and we have a valid 
diagnostic, we were actually setting the flag and causing mayhem.
rdar://10444207

llvm-svn: 144670

lifetimes have been extended via reference binding. The type of the
reference and the type of the temporary are not necessarily the same,
which could cause a crash. Fixes <rdar://problem/10398199>.

llvm-svn: 144646

Also add a maximum edit distance threshold, so we don't correct "-Wx" to "-W#pragma-messages".

llvm-svn: 144644

llvm-svn: 144637

otherwise it will crash with asserts on or it will be written as null pointer.

llvm-svn: 144626

no need to store it in another field.

llvm-svn: 144624

llvm-svn: 144612

'auto'.  Introduce a convenience method to make this a bit
easier, and use it elsewhere.

llvm-svn: 144605

llvm-svn: 144604

$ clang -Wololo t.c
warning: unknown warning option '-Wololo'; did you mean '-Wall'? [-Wunknown-warning-option]

llvm-svn: 144591

This is a partial revert of r143846. While cleaning up after a crash is
probably a good idea, we were also deleting .d files if the compilation failed
due to invalid input, which is not the desired behavior. The test is XFAIL'd
until the cleanup code can be reworked to do the right thing.

llvm-svn: 144590

at the bases of an undefined class. Fixes <rdar://problem/10438657>.

llvm-svn: 144582

Objective-C classes. This has two purposes: to consistently provide
"forward declaration here" notes when we hit an incomplete type, and
to give LLDB a chance to complete the type.

RequireCompleteType bits from Sean Callanan!

llvm-svn: 144573

llvm-svn: 144572

[static analyzer] Tweak RetainCountChecker's diagnostics to correctly indicate if a message was due to a property access.  This can
potentially be refactored for other clients, and this is a regression from the refactoring of property acceses.

llvm-svn: 144571

[analyzer;Regionstore] handle loads from StringLiteral elements for StringLiterals representing wide strings.  Fixes PR 11294.

llvm-svn: 144563

llvm-svn: 144561

of the first type is the same as the aka string of the second type, but both
types are different.  Update the logic to print an aka for the first type to
show that they are different.

llvm-svn: 144558