feature-test macro, and mark feature as done on status page.


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They are a little bit of a special case in the mangling. They are always
mangled without taking into account their virtual-ness of the
destructor. They are also mangled to return void, unlike the actual
destructor.

This fixes PR31931.

Differential Revision: https://reviews.llvm.org/D29912

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such guides below explicit ones, and ensure that references to the class's
template parameters are not treated as forwarding references.

We make a few tweaks to the wording in the current standard:
1) The constructor parameter list is copied faithfully to the deduction guide,
   without losing default arguments or a varargs ellipsis (which the standard
   wording loses by omission).
2) If the class template declares no constructors, we add a T() -> T<...> guide
   (which will only ever work if T has default arguments for all non-pack
   template parameters).
3) If the class template declares nothing that looks like a copy or move
   constructor, we add a T(T<...>) -> T<...> guide.
#2 and #3 follow from the "pretend we had a class type with these constructors"
philosophy for deduction guides.


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This bypasses integer sanitization checks which are redundant on the expression since it's been checked by Sema. Fixes a clang codegen assertion on "void test() { new int[0+1]{0}; }" when building with -fsanitize=signed-integer-overflow.


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rdar://29219185


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This commit adds context sensitive code completion support for the C++11
keywords that currently don't have completion results.

The following keywords are supported by this patch:

alignas
constexpr
static_assert
noexcept (as a function/method qualifier)
thread_local

The following special identifiers are also supported:

final (as a method qualifier or class qualifier)
override

rdar://29219185

Differential Revision: https://reviews.llvm.org/D28286


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Set 5 Objective-C++ tests to run at gnu++98

Differential Revision: https://reviews.llvm.org/D29739


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Different diagnostics when format string does not match 
actual arg type.

This commit contains the first 2 of 3 tests reviewed in D29685


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Fixes https://bugs.llvm.org/show_bug.cgi?id=31932

Based on a patch by Roland McGrath

Reviewed By: phosek

Differential Revision: https://reviews.llvm.org/D29843

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C++11 destructors are nothrow by default.

Differential Revision: https://reviews.llvm.org/D29859


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If the preamble had diagnostic state this would leave behind invalid
state in the DiagnosticsEngine and crash later. The test case runs into
an assertion in DiagnosticsEngine::setSourceManager.

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Differential Revision:  https://reviews.llvm.org/D29309

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CMake handles paths with slashes. It caused cmake/install failure on msbuild.exe.

Note, Other llvm-config-oriented variables have been normalized since they are stored in the cache attributed with PATH.

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Summary:
Sema::CheckCompletedCoroutineBody was growing unwieldy with building all of the substatements. Also, constructors for CoroutineBodyStmt had way too many parameters.

Instead,  CoroutineBodyStmt now defines CtorArgs structure with all of the required construction parameters.
CheckCompleteCoroutineBody delegates construction of individual substatements to short functions one per each substatement.

Also, added a drive-by fix of initializing CoroutinePromise to nullptr in ScopeInfo.h.
And addressed the FIXME that wanted to tail allocate extra room at the end of the CoroutineBodyStmt to hold parameter move expressions. (The comment was longer that the code that implemented tail allocation).

Reviewers: rsmith, EricWF

Subscribers: mehdi_amini, cfe-commits

Differential Revision: https://reviews.llvm.org/D28835

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...function type with a redeclaration having the same attribute. Fixing this
introduced a secondary problem where we were assuming that K&R functions
could not be attributed types when reporting old-style function definitions
that are not preceded by a prototype."

Also Revert "Hopefully fixes a compile error introduced by r294861."

This reverts commit r294862, r294861, as they bork the ARM builds and
haven't fix it back.

Also, please, short commit titles, long commit decsriptions...

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On Windows the filename might have an extension, namely
`.exe`, so the search will fail. Sorry, I don't have a
good way to test this as it seems to fail only in some
weird configurations. r284430 has the same modification
for Fuchsia.

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Use # as the comment leader for AArch64 auto-release elision marker.
This is to keep it in sync with the value used in swift.  When building
libdispatch for Linux AArch64, the auto-release elision marker was
emitted.  However, ELF uses # as the comment leader while MachO accepts
both ; and #.  Use the common marker for it instead.

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Certain ARC runtime functions have an ABI contract of being forwarding.
Annotate the functions with the appropriate `returned` attribute on the
arguments.  This hoists some of the runtime ABI contract information
into the frontend rather than the backend transformations.

The test adjustments are to mark the returned function parameter as
such.  The minor change to the IR output is due to the fact that the
returned reference of the object causes it to extend the lifetime of the
object by returning an autoreleased return value.  The result is that
the explicit objc_autorelease call is no longer formed, as autorelease
elision is now possible on the return.

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Silence some diagnostics which clang now generates.  This makes it
easier to see the failures in lit output.  NFC.

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Summary:
The -mmcu option for GCC sets macros like __AVR_ATmega328P__ (with the trailing
underscores), be sure to include these underscores for Clangs -mcpu option.

See "AVR Built-in Macros" in https://gcc.gnu.org/onlinedocs/gcc/AVR-Options.html

Reviewers: jroelofs, dylanmckay

Reviewed By: jroelofs, dylanmckay

Subscribers: efriedma, cfe-commits

Differential Revision: https://reviews.llvm.org/D29817

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Attributes on K&R C functions should not cause incompatible function type with a redeclaration having the same attribute. Fixing this introduced a secondary problem where we were assuming that K&R functions could not be attributed types when reporting old-style function definitions that are not preceded by a prototype.

This patch fixes PR31020.

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objc_storeStrong does not return a value.

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Adjust style before making more intrusive changes.  NFC.

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The conditional cast is unnecessary since we know that it will always
succeed.  NFC.

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The Inputs/ directory is the recommended location for extra files for test
cases.  No functional change.


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What we want to actually control this behavior is something more local
than an EvalutationMode. Please see the linked revision for more
discussion on why/etc.

This fixes PR31843.

Differential Revision: https://reviews.llvm.org/D29469


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specialization types from within their own initializers.


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It's actually meaningful and useful to allow such variables to have no
initializer, but we are strictly following the standard here until the C++
committee reaches consensus on allowing this.


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Summary:
powerpc64 big-endian is not supported, but I believe that most logic can
be shared, except for xray_powerpc64.cc.

Also add a function InvalidateInstructionCache to xray_util.h, which is
copied from llvm/Support/Memory.cpp. I'm not sure if I need to add a unittest,
and I don't know how.

Reviewers: dberris, echristo, iteratee, kbarton, hfinkel

Subscribers: mehdi_amini, nemanjai, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D29742

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[c++1z] Disallow deduction guides with deduced types that don't syntactically match the template being deduced.


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Expose the half type (fp16) through libclang and the python bindings.

It seems CXType_LastBuiltin was not updated in b2ea6d9a ("Enable
support for __float128 in Clang", 2016-04-13), so update it now.

Add an Index test for OpenCL types; in the future we will add other
OpenCL types such as images to this test.

Patch by Sven van Haastregt.

Differential Revision: https://reviews.llvm.org/D29718


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