I can't read Java-style 'Gcc' acronyms. ;]

No functionality changed.

llvm-svn: 148840

function. The logic for this, and I want to emphasize that this is the
logic for computing the *target* triple, is currently scattered
throughout various different HostInfo classes ToolChain factoring
functions. Best part, it is largely *duplicated* there. The goal is to
hoist all of that up to here where we can deal with it once, and in
a consistent manner.

Unfortunately, this uncovers more fun problems: the ToolChains assume
that the *actual* target triple is the one passed into them by these
factory functions, while the *host* triple is the one in the driver.
This already was a lie, and a damn lie, when the '-target' flag was
specified. It only really worked when the difference stemmed from '-m32'
and '-m64' flags. I'll have to fix that (and remove all the FIXMEs I've
introduced here to document the problem) before I can finish hoisting
the target-calculation logic.

It's bugs all the way down today it seems...

llvm-svn: 148839

pointer to incomplete type from an ExtWarn to an error. We put the
ExtWarn in place as part of a workaround for Boost (PR6527), but it
(1) doesn't actually match a GCC extension and (2) has been fixed for
two years in Boost, and (3) causes us to emit code that fails badly at
run time, so it's a bad idea to keep it. Fixes PR11803.

llvm-svn: 148838

in the definition as well.

llvm-svn: 148831

// rdar://10731065

llvm-svn: 148823

classes and protocols, implementing lazy-import semantics for both.

llvm-svn: 148816

when it actually has changed (and not, e.g., when we've simply attached a
deserialized macro definition). Good for ~1.5% reduction in module
file size, mostly in the identifier table.

llvm-svn: 148808

available. Clang's <unwind.h> isn't ready for prime time. Fixes
<rdar://problem/10733587>.

llvm-svn: 148807

inside the innards of the Driver implementation, and only ever
implemented to return 'true' for the Darwin OSes. Instead use a more
direct query on the target triple and a comment to document why the
target matters here.

If anyone is worried about this predicate getting wider use or improper
use, I can make it a local or private predicate in the driver.

llvm-svn: 148797

The Driver has a fixed target, whether we like it or not, the
DefaultTargetTriple is not a default. This at least makes things more
honest. I'll eventually get rid of most (if not all) of
DefaultTargetTriple with this proper triple object. Bit of a WIP.

llvm-svn: 148796

This is the last piece of N3031 (decltype in weird places) - supporting
the use of decltype in a class ctor's member-initializer-list to
specify the base classes to initialize.

Reviewed by Richard Smith.

llvm-svn: 148789

This makes all sorts of fun examples work with decltype.
Reviewed by Richard Smith.

llvm-svn: 148787

r148774, r148775, r148776, r148777

llvm-svn: 148780

llvm-svn: 148777

llvm-svn: 148775

llvm-svn: 148774

llvm-svn: 148772

llvm-svn: 148765

matches a typedef declaring an object type. // rdar://10733000

llvm-svn: 148760

type of pointers. 

llvm-svn: 148753

its line. // rdar://10711037

llvm-svn: 148747

llvm-svn: 148744

Fix some review comments.
Add a test for deduction when std::initializer_list isn't available yet.
Fix redundant error messages. This fixes and outstanding FIXME too.

llvm-svn: 148735

Sema::DiagnoseSentinelCalls() does.

llvm-svn: 148722

Previously, for unqualified lookups, a positive cache hit is used as the
only non-keyword correction and a negative cache hit immediately returns
an empty TypoCorrection. With the new callback objects, this behavior
causes false negatives by not accounting for the fact that callback
objects alter the set of potential/allowed corrections. The new behavior
is to seed the set of corrections with the cached correction (for
positive hits) to estabilishing a baseline edit distance. Negative cache
hits are only stored or used when either no callback object is provided
or when it returns true for a call to ValidateCandidate with an empty
TypoCorrection (i.e. when ValidateCandidate does not seem to be doing
any checking of the TypoCorrection, such as when an instance of the base
callback class is used solely to specify the set of keywords to be accepted).

llvm-svn: 148720

llvm-svn: 148711

without C++-specific features.

Use it to set the language to C++ when indexing non-C-like structs.
rdar://10732579

llvm-svn: 148708

of macro arguments.

For "MAC1( MAC2(foo) )" and location of 'foo' token it would return
"MAC1" instead of "MAC2".

llvm-svn: 148704

expression) when code-completing member access expressions. Fixes
<rdar://problem/10717172>.

llvm-svn: 148703

to an error, so that users can turn them off if necessary. Note that
this does *not* change the behavior of in a SFINAE context, where we
still flag an error even if the warning is disabled. This matches
GCC's behavior.

llvm-svn: 148701

X86 backend in LLVM.

llvm-svn: 148689

llvm-svn: 148683

This matches cl.exe's behavior and fixes PR11791.

llvm-svn: 148682

Clang previously implemented -Wswitch-enum the same as -Wswitch. This patch
corrects the behavior to match GCC's. The critical/only difference being that
-Wswitch-enum is not silenced by the presence of a default case in the switch.

llvm-svn: 148679

Also change a || that I accidentally changed to && back to ||.

llvm-svn: 148677

MSVC2010's pair class has a move assignment operator but no explicit copy
constructor, which makes it unusable without this change.

For symmetry, let move copy constructors not mark the default assignment
operator as deleted either. Both changes match cl.exe's behavior.  Fixes
pr11826.

Also update the standard excerpt to point to the right paragraph.

llvm-svn: 148675

llvm-svn: 148673

For consistency with GCC & reasonable sanity. The FIXME suggests that the
original author was perhaps using the default check for some other purpose,
not realizing the more obvious limitation/false-negatives it creates, but this
doesn't seem to produce any regressions & fixes the included test.

llvm-svn: 148649

In Microsoft Mode, disable the C++11 strict integral conversion rules for enumerator that were introduced with r148439. Otherwise MSVC headers won't compile in C++ 11 mode.

llvm-svn: 148642

This warning acts as the complement to the main -Wswitch-enum warning (which
warns whenever a switch over enum without a default doesn't cover all values of
 the enum) & has been an an-doc coding convention in LLVM and Clang in my
experience. The purpose is to ensure there's never a "dead" default in a
switch-over-enum because this would hide future -Wswitch-enum errors.

The name warning has a separate flag name so it can be disabled but it's grouped
under -Wswitch-enum & is on-by-default because of this.

The existing violations of this rule in test cases have had the warning disabled
& I've added a specific test for the new behavior (many negative cases already
exist in the same test file - and none regressed - so I didn't add more).

Reviewed by Ted Kremenek ( http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120116/051690.html )

llvm-svn: 148640