Long double is just double on FreeBSD/{PPC,PPC64}.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152632 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused-but-set variable.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152633 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Stop using a SmallVector<> for Diagnostic. This drops Clang binary size
by ~%.3/~100k in my build -- simply by eliminating the horrible code bloat coming
from the .clear() of the SmallVector<FixItHint>, which does a std::~string, etc.
 - My understanding is we don't ever emit arbitrary numbers of fixits, so I just
   moved us to using a statically sized array like we do for arguments and
   ranges.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152639 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Fix ~Diagnostic() to not call Emit() when there is no diag obj (most
commonly when the diag has been copied).
 - This eliminates a completely spurious call to Emit() which was in
   Sema::Diag(). Sob.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152640 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Make DiagnosticBuilder::{isActive,getLocation,getDiagID} protected.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152641 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Eliminate DiagnosticBuilder::Suppress and matching ctor, this stuff is
not used anymore (good thing we are still paying for it!).

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152642 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Make DiagnosticBuilder::{Clear,Emit} protected.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152643 91177308-0d34-0410-b5e6-96231b3b80d8
Spelling.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152644 91177308-0d34-0410-b5e6-96231b3b80d8
Fix the long double to be of width/align 64. Rename va_list_test to
powerpc_types and add testing for the (long) double there.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152647 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Move the check for parser errors out of the loop over Decls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152648 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Minor: factor out logic for determining if we should skip a
function.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152649 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Use recursive AST visitor to drive simple visitation order in
AnalysisConsumer.

As a result:
 - We now analyze the C++ methods which are defined within the
class body. These were completely skipped before.

- Ensure that AST checkers are called on functions in the
order they are defined in the Translation unit.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152650 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Refactor CallGraph to use Recursive AST visitor when
collecting function Decls.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152651 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Use BFS over call graph when analysing functions.

BFS should give slightly better performance. Ex: Suppose, we have two
roots R1 and R2. A callee function C is reachable through both. However,
C is not inlined when analyzing R1 due to inline stack depth limit. With
DFS, C will be analyzed as top level even though it would be analyzed as
inlined through R2. On the other hand, BFS could avoid analyzing C as
top level.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152652 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Change the order in which we analyze the functions under
inlining to be the reverse of their declaration.

This optimizes running time under inlining up to 20% since we do not
re-analyze the utility functions which are usually defined first in the
translation unit if they have already been analyzed while inlined into
the root functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152653 91177308-0d34-0410-b5e6-96231b3b80d8
[driver] Parse diagnostic args in the driver.

Previously, only diagnostics thrown by the cc1 process were
actually honoring the diagnostic options given on the command line,
like -Werror.

Reuse the existing code in Frontend currently used for cc1,
adjusting it to not interpret -Wl, linker flags as warnings.

Also fix a faulty test exposed by this change.
It wasn't actually testing anything, and was giving this warning:

clang-3: warning: argument unused during compilation: '-verify'

Which -Werror didn't turn into an error because it was output
by the driver, not the cc1 process, and diagnostic options
weren't parsed by the driver. And you couldn't see the warning
when running the test suite.

Fixes PR12181.
Patch by Dylan Noblesmith <nobled@dreamwidth.org>.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152660 91177308-0d34-0410-b5e6-96231b3b80d8
Update test case to use not tool.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152664 91177308-0d34-0410-b5e6-96231b3b80d8
Allow vectors to be constructed from constexpr function arguments in
constant expressions.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152665 91177308-0d34-0410-b5e6-96231b3b80d8
[Basic] Fix up DiagnosticBuilder::{FlushCounts,Emit} to be inline.

 - This is much more important than it appears at first glance...

The intended design of DiagnosticBuilder was that it never escape and that all
its members would get lowered to registers by the compiler. By fixing Emit here,
the compiler can completely eliminate the DiagnosticBuilder object and never
need to push those registers back into it.

Unfortunately, Sema has broken DiagnosticBuilder in other ways (by introducing
SemaDiagnosticBuilder), so we don't get the fill impact of this, but it is still
good for 30k reduction in code size. I'll work on fixing the
SemaDiagnosticBuilder problems next.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152669 91177308-0d34-0410-b5e6-96231b3b80d8
[analyzer] Call enter/exit diagnostic should refer to caller/callee,
respectively.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152676 91177308-0d34-0410-b5e6-96231b3b80d8