Revert "Speed-up ObjCMethodDecl::getOverriddenMethods()."

This reverts commit r179436.

Due to caching, it was possible that we could miss overridden methods that
were introduced by categories later on.

Along with reverting the commit I also included a test case that would have caught this.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179547 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Tests: move system functions into system header simulator files.

Some checkers ascribe different behavior to functions declared in system
headers, so when working with standard library functions it's probably best
to always have them in a standard location.

Test change only (no functionality change), but necessary for the next commit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179552 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Properly invalidate global regions on opaque function calls.

This fixes a regression where a call to a function we can't reason about
would not actually invalidate global regions that had explicit bindings.

  void test_that_now_works() {
    globalInt = 42;
    clang_analyzer_eval(globalInt == 42); // expected-warning{{TRUE}}

    invalidateGlobals();
    clang_analyzer_eval(globalInt == 42); // expected-warning{{UNKNOWN}}
  }

This has probably been around since the initial "cluster" refactoring of
RegionStore, if not longer.

<rdar://problem/13464044>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179553 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Re-enable using global regions as a symbolic base.

Now that we're invalidating global regions properly, we want to continue
taking advantage of a particular optimization: if all global regions are
invalidated together, we can represent the bindings of each region with
a "derived region value" symbol. Essentially, this lazily links each
global region with a single symbol created at invalidation time, rather
than binding each region with a new symbolic value.

We used to do this, but haven't been for a while; the previous commit
re-enabled this code path, and this handles the fallout.

<rdar://problem/13464044>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179554 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Be lazy about struct/array global invalidation too.

Structs and arrays can take advantage of the single top-level global
symbol optimization (described in the previous commit) just as well
as scalars.

No intended behavioral change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179555 91177308-0d34-0410-b5e6-96231b3b80d8
Remove some dead code that has not been used since 2010.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179558 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Don't assert on a temporary of pointer-to-member type.

While we don't do anything intelligent with pointers-to-members today,
it's perfectly legal to need a temporary of pointer-to-member type to, say,
pass by const reference. Tweak an assertion to allow this.

PR15742 and PR15747

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179563 91177308-0d34-0410-b5e6-96231b3b80d8
Break after multiline parameters.

We do this in general, but missed a few cases.

Before:
void aaaaaaaaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa, bbbb bbbb);

After:
void aaaaaaaaaaaaaaaaaaaaaaa(
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
    bbbb bbbb);

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179570 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Add more specialized error messages for corner cases as per Jordan's code review for r179396

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179571 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Address code review for r179395

Mostly refactoring + handle the nested fields by printing the innermost field only.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179572 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Add pretty printing to CXXBaseObjectRegion.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179573 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Do not crash when processing binary "?:" in C++

When computing the value of ?: expression, we rely on the last expression in
the previous basic block to be the resulting value of the expression. This is
not the case for binary "?:" operator (GNU extension) in C++. As the last
basic block has the expression for the condition subexpression, which is an
R-value, whereas the true subexpression is the L-value.

Note the operator evaluation just happens to work in C since the true
subexpression is an R-value (like the condition subexpression). CFG is the
same in C and C++ case, but the AST nodes are different, which the LValue to
Rvalue conversion happening after the BinaryConditionalOperator evaluation.

Changed the logic to only use the last expression from the predecessor only
if it matches either true or false subexpression. Note, the logic needed
fortification anyway: L and R were passed but not even used by the function.

Also, change the conjureSymbolVal to correctly compute the type, when the
expression is an LG-value.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179574 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Improve the malloc checker stack hint message

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179580 91177308-0d34-0410-b5e6-96231b3b80d8
Correctly propagate the storage class to function template instantiations.

This fixes pr15753. This is another case of the fuzzy definition of the
"as written" storage class of an instantiation.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179581 91177308-0d34-0410-b5e6-96231b3b80d8
Basic support for Microsoft property declarations and
references thereto.

Patch by Tong Shen!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179585 91177308-0d34-0410-b5e6-96231b3b80d8
Add support for sparcv9 targets.

The SPARC v8 and SPARC v8 architectures are very similar, so use a base
class to share most information between them.

Include operating systems with known SPARC v9 ports.

Also fix two issues with the SPARC v8 data layout string: SPARC v8 is a
big endian target with a 64-bit aligned stack.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179596 91177308-0d34-0410-b5e6-96231b3b80d8
Suppress unused warning on static inline function template specializations.

Patch by Halfdan Ingvarsson!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179598 91177308-0d34-0410-b5e6-96231b3b80d8
Objective-C IRGen. Use llvm::WeakVH
for caching couple of global symbols used
for generation of CF/NS string meta-data
so they are not released prematuely in certain
corner cases. // rdar:// 13598026.
Reviewed by John M.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179599 91177308-0d34-0410-b5e6-96231b3b80d8
Fix handling of atomic shift operations, from Serge Pavlov.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179600 91177308-0d34-0410-b5e6-96231b3b80d8
Use -emit-llvm for the following tests to stop them from failing for Hexagon:

CodeGenCXX/vtable-debug-info.cpp
Driver/objc++-cpp-output.mm
Driver/objc-cpp-output.m



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179602 91177308-0d34-0410-b5e6-96231b3b80d8