Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r265925:

Upgrade our copy of llvm/clang to 3.4.1 release. This release contains
mostly fixes, for the following upstream bugs:

http://llvm.org/PR16365 http://llvm.org/PR17473 http://llvm.org/PR18000
http://llvm.org/PR18068 http://llvm.org/PR18102 http://llvm.org/PR18165
http://llvm.org/PR18260 http://llvm.org/PR18290 http://llvm.org/PR18316
http://llvm.org/PR18460 http://llvm.org/PR18473 http://llvm.org/PR18515
http://llvm.org/PR18526 http://llvm.org/PR18600 http://llvm.org/PR18762
http://llvm.org/PR18773 http://llvm.org/PR18860 http://llvm.org/PR18994
http://llvm.org/PR19007 http://llvm.org/PR19010 http://llvm.org/PR19033
http://llvm.org/PR19059 http://llvm.org/PR19144 http://llvm.org/PR19326

MFC 261991:

Upgrade our copy of llvm/clang to 3.4 release. This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3. The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC 262121 (by emaste):

Update lldb for clang/llvm 3.4 import

This commit largely restores the lldb source to the upstream r196259
snapshot with the addition of threaded inferior support and a few bug
fixes.

Specific upstream lldb revisions restored include:
SVN git
181387 779e6ac
181703 7bef4e2
182099 b31044e
182650 f2dcf35
182683 0d91b80
183862 15c1774
183929 99447a6
184177 0b2934b
184948 4dc3761
184954 007e7bc
186990 eebd175

Sponsored by: DARPA, AFRL

MFC 262186 (by emaste):

Fix mismerge in r262121

A break statement was lost in the merge. The error had no functional
impact, but restore it to reduce the diff against upstream.

MFC 262303:

Pull in r197521 from upstream clang trunk (by rdivacky):

Use the integrated assembler by default on FreeBSD/ppc and ppc64.

Requested by: jhibbits

MFC 262611:

Pull in r196874 from upstream llvm trunk:

Fix a crash that occurs when PWD is invalid.

MCJIT needs to be able to run in hostile environments, even when PWD
is invalid. There's no need to crash MCJIT in this case.

The obvious fix is to simply leave MCContext's CompilationDir empty
when PWD can't be determined. This way, MCJIT clients,
and other clients that link with LLVM don't need a valid working directory.

If we do want to guarantee valid CompilationDir, that should be done
only for clients of getCompilationDir(). This is as simple as checking
for an empty string.

The only current use of getCompilationDir is EmitGenDwarfInfo, which
won't conceivably run with an invalid working dir. However, in the
purely hypothetically and untestable case that this happens, the
AT_comp_dir will be omitted from the compilation_unit DIE.

This should help fix assertions occurring with ports-mgmt/tinderbox,
when it is using jails, and sometimes invalidates clang's current
working directory.

Reported by: decke

MFC 262809:

Pull in r203007 from upstream clang trunk:

Don't produce an alias between destructors with different calling conventions.

Fixes pr19007.

(Please note that is an LLVM PR identifier, not a FreeBSD one.)

This should fix Firefox and/or libxul crashes (due to problems with
regparm/stdcall calling conventions) on i386.

Reported by: multiple users on freebsd-current
PR: bin/187103

MFC 263048:

Repair recognition of "CC" as an alias for the C++ compiler, since it
was silently broken by upstream for a Windows-specific use-case.

Apparently some versions of CMake still rely on this archaic feature...

Reported by: rakuco

MFC 263049:

Garbage collect the old way of adding the libstdc++ include directories
in clang's InitHeaderSearch.cpp. This has been superseded by David
Chisnall's commit in r255321.

Moreover, if libc++ is used, the libstdc++ include directories should
not be in the search path at all. These directories are now only used
if you pass -stdlib=libstdc++.

MFC r261680:

Pull in r200899 from upstream clang trunk:

Allow transformation of VariableArray to ConstantArray.

In the following code:

struct A { static const int sz; };
template<class T> void f() { T arr[A::sz]; }

the array 'arr' is represented as a variable size array in the template.
If 'A::sz' gets value below in the translation unit, the array in
instantiation can turn into constant size array.

This change fixes PR18633.

Differential Revision: http://llvm-reviews.chandlerc.com/D2688

This fixes "Assertion failed: (T::isKind(*this)), function castAs"
errors, which can occur when building the security/quantis port.

Reported by: ale

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Pull in r189644 from upstream llvm trunk:

Add ms_abi and sysv_abi attribute handling.

Based on a patch by Benno Rice!

This will help to develop EFI support.

Approved by: re (kib)
Verified by: benno
MFC after: 1 week

Pull in r182983 from upstream clang trunk:

Fix handling of braced-init-list as reference initializer within
aggregate initialization. Previously we would incorrectly require an
extra set of braces around such initializers.

Pull in r188718 from upstream clang trunk:

Handle init lists and _Atomic fields.

Fixes PR16931.

These fixes are needed for the atomic_flag type to work correctly in our
stdatomic.h.

Requested by: theraven

Pull in r188716 from upstream clang trunk:

PR16727: don't try to evaluate a potentially value-dependent
expression when checking for missing parens in &&/|| expressions.

This fixes an assertion encountered when building the lang/sdcc port.

Reported by: kwm

Pull in r185446 from clang trunk:

Fix to PR15826 - clang hits assert in clang::ASTContext::getASTRecordLayout.

Reported by: glebius

Pull in r183926 from LLVM trunk:

Allow clang to build __clear_cache on ARM.

__clear_cache is special. It needs no signature, but is a real function in
compiler_rt or libgcc.

Patch by Andrew Turner.

This allows us to build the __clear_cache function in compiler-rt.

Upgrade our copy of llvm/clang to 3.3 release.

Release notes are still in the works, these will follow soon.

MFC after: 1 month

Upgrade our copy of llvm/clang to trunk r178860, in preparation of the
upcoming 3.3 release (branching and freezing expected in a few weeks).

Preliminary release notes can be found at the usual location:
<http://llvm.org/docs/ReleaseNotes.html>

An MFC is planned once the actual 3.3 release is finished.

Upgrade our copy of llvm/clang to 3.2 release.

Release notes for llvm:
http://llvm.org/releases/3.2/docs/ReleaseNotes.html

Release notes for clang:
http://llvm.org/releases/3.2/tools/clang/docs/ReleaseNotes.html

MFC after: 2 weeks

Upgrade our copy of llvm/clang to r168974, from upstream's release_32
branch. This is effectively llvm/clang 3.2 RC2; the 3.2 release is
coming soon.

Pull in r166498 from upstream clang trunk:

Add a new warning -Wmissing-variable-declarations, to warn about variables
defined without a previous declaration. This is similar to
-Wmissing-prototypes, but for variables instead of functions.

Pull in r162360 from upstream clang trunk:

Merge existing attributes before processing pragmas in friend template
declarations.
Fixes pr13662.

This should help when building Firefox with libc++.

Upgrade our copy of llvm/clang to trunk r162107. With thanks to
Benjamin Kramer and Joerg Sonnenberger for their input and fixes.

Pull in r159895 from upstream clang trunk:

When marking virtual functions as used for a class' vtable, mark all functions
which will appear in the vtable as used, not just those ones which were
declared within the class itself. Fixes an issue reported as comment#3 in
PR12763 -- we sometimes assert in codegen if we try to emit a reference to a
function declaration which we've not marked as referenced. This also matches
gcc's observed behavior.

This should fix clang assertions when building certain components of the
LibreOffice port.

MFC after: 3 days

Upgrade our copy of llvm/clang to 3.1 release. Release notes can be
found at: http://llvm.org/releases/3.1/docs/ReleaseNotes.html

MFC after: 3 days

Upgrade our copy of llvm/clang to r155985, from upstream's release_31
branch. This brings us very close to the 3.1 release, which is planned
for May 14th.

MFC after: 2 weeks

Upgrade our copy of llvm/clang to trunk r154661, in preparation of the
upcoming 3.1 release (expected in a few weeks). Preliminary release
notes can be found at: <http://llvm.org/docs/ReleaseNotes.html>

MFC after: 2 weeks

Pull in r144505 from upstream clang trunk:

Fix the signature of the getcontext builtin, eliminating incorrect
warnings about its prototype.

This also adds a -W(no-)builtin-requires-header option, which can be
used to enable or disable warnings of this kind.

MFC after: 1 week

Pull in r144110 from upstream clang trunk:

Mark the overloaded atomic builtins as having custom type checking,
which they do. This avoids all of the default argument promotions that
we (1) don't want, and (2) undo during that custom type checking, and
makes sure that we don't run into trouble during template
instantiation. Fixes llvm/clang PR11320.

MFC after: 1 week

Upgrade our copy of llvm/clang to r142614, from upstream's release_30
branch. This brings us very close to the 3.0 release, which is expected
in a week or two.

MFC after: 1 week

Upgrade our copy of llvm/clang to r135360, from upstream's trunk.

Upgrade our copy of llvm/clang to r132879, from upstream's trunk.

Upgrade our copy of llvm/clang to r130700, from upstream's trunk.

Update llvm/clang to trunk r126547.

There are several bugfixes in this update, but the most important one is
to ensure __start_ and __stop_ symbols for linker sets and kernel module
metadata are always emitted in object files:

http://llvm.org/bugs/show_bug.cgi?id=9292

Before this fix, if you compiled kernel modules with clang, they would
not be properly processed by kldxref, and if they had any dependencies,
the kernel would fail to load those. Another problem occurred when
attempting to mount a tmpfs filesystem, which would result in 'operation
not supported by device'.

Upgrade our copy of llvm/clang to r126079, from upstream's trunk.

This contains many improvements, primarily better C++ support, an
integrated assembler for x86 and support for -pg.

Actually, check for any kind of "C string type".

Approved by: rpaulo (mentor)

Extend this check for const unsigned char *.

Approved by: rpaulo (mentor)

Remove more unneeded files and directories from contrib/llvm. This
still allows us to build tblgen and clang, and further reduces the
footprint in the tree.

Approved by: rpaulo (mentor)

Upgrade our Clang in base to r114020, from upstream's release_28 branch.

Approved-by: rpaulo (mentor)

Upgrade our Clang in base to r108428.

This commit merges the latest LLVM sources from the vendor space. It
also updates the build glue to match the new sources. Clang's version
number is changed to match LLVM's, which means /usr/include/clang/2.0
has been renamed to /usr/include/clang/2.8.

Obtained from: projects/clangbsd

Introduce -fformat-extensions. A local FreeBSD extension used
for additional printf modifiers in kernel.

Approved by: ed (mentor)

Import LLVM/clang from vendor stripped of docs/ test/ website/ www/ examples/
in llvm/ and/or llvm/contrib/clang/ respectively.

Approved by: ed (mentor)
Approved by: core

Update clang to r104832.

Update clang to r103052.

Update clang to r103004.

Update clang to r100520.

Update clang to r100285.

Update clang to r100181.

Update clang to r99115.

Update clang to r98631.

Update clang to r98164.

Update clang to r97873.

Update clang to 97654.

Update clang to r96341.

Update clang to r94309.

Update clang to r93512.

Updaet clang to 92395.

Update clang to 91430.

Update clang to r90226.

Update clang to r89337.

Update clang to r89205.

Update clang to r86140.

Update clang to r86025.

Update clang to r84949.

Delete some more files.

Update clang to 84175.

Update clang to r84119.

Import Clang r74788.

Import Clang r74383.

Import Clang r73954.

Update Clang sources to r73879.

Import Clang r73340.

Import Clang r73070.

Import Clang r73021.

Import clang, at r72995.

Import Clang, at r72770.

Import Clang, at r72732.