git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237507 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237505 91177308-0d34-0410-b5e6-96231b3b80d8

This patch adds support for the following new instructions in the
Power ISA 2.07:

  vpksdss
  vpksdus
  vpkudus
  vpkudum
  vupkhsw
  vupklsw

These instructions are available through the vec_packs, vec_packsu,
vec_unpackh, and vec_unpackl built-in interfaces.  These are
lane-sensitive instructions, so the built-ins have different
implementations for big- and little-endian, and the instructions must
be marked as killing the vector swap optimization for now.

The first three instructions perform saturating pack operations.  The
fourth performs a modulo pack operation, which means it can be
represented with a vector shuffle, and conversely the appropriate
vector shuffles may cause this instruction to be generated.  The other
instructions are only generated via built-in support for now.

I noticed during patch preparation that the macro __VSX__ was not
previously predefined when the power8-vector or direct-move features
are requested.  This is an error, and I've corrected that here as
well.

Appropriate tests have been added.

There is a companion patch to llvm for the rest of this support.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237500 91177308-0d34-0410-b5e6-96231b3b80d8

MSVCRT's stdio doesn't do line buffering.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237492 91177308-0d34-0410-b5e6-96231b3b80d8

The error has the form ... 'int' ... 'const int' ... dropped qualifiers.  At
first glance, it appears that the const qualifier is added.  Reverse the types
so that the second type is less qualified than the first.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237482 91177308-0d34-0410-b5e6-96231b3b80d8

With this change, enabling -fmodules-local-submodule-visibility results in name
visibility rules being applied to submodules of the current module in addition
to imported modules (that is, names no longer "leak" between submodules of the
same top-level module). This also makes it much safer to textually include a
non-modular library into a module: each submodule that textually includes that
library will get its own "copy" of that library, and so the library becomes
visible no matter which including submodule you import.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237473 91177308-0d34-0410-b5e6-96231b3b80d8

Differential Revision: http://reviews.llvm.org/D9631

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237463 91177308-0d34-0410-b5e6-96231b3b80d8

Starting from r236426 FindInstantiatedDecl may instantiate types that
are referenced before definition. This change limit the set of types
that can be instantiated by this function.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237434 91177308-0d34-0410-b5e6-96231b3b80d8

Fixed a bug with codegen for destination atomic l-value with padding and junk in this padding bytes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237422 91177308-0d34-0410-b5e6-96231b3b80d8

It broke clang stage2, at least tblgen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237418 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
r235215 enables support in LLVM for legalizing f16 type in the IR.  AArch64
already had support for this.  r235215 and some backend patches brought support
for ARM, X86, X86-64, Mips and Mips64.

This change exposes the LangOption 'NativeHalfType' in the command line, so the
backend legalization can be used if desired.  NativeHalfType is enabled for
OpenCL (current behavior) or if '-fnative-half-type' is set.

Reviewers: olista01, steven_wu, ab

Subscribers: cfe-commits, srhines, aemerson

Differential Revision: http://reviews.llvm.org/D9781

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The issue I was trying to solve in r236547 was about built-in macros,
but I disabled coverage in all system macros. This is actually a bit
of overkill, and makes the display of coverage around system macros
degrade unnecessarily. Instead, limit this to builtins specifically.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237397 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237396 91177308-0d34-0410-b5e6-96231b3b80d8

This reverts commit 742dc9b6.

This is generating multiple segfaults in our internal builds.
Test case coming up shortly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237391 91177308-0d34-0410-b5e6-96231b3b80d8

Follow-up to commit for revision 236848.
Just a test case for the macro definition under the right CPU/Arch.
One combination was actually missed in the initial fix:
  - powerpc64-unknown-unknown -mcpu=pwr8 (rather than -mcpu=power8).


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237386 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
Space on stack allocated for unused structures returned by functions was unused
even when it's lifetime didn't intersect with lifetime of any other objects that
could use the same space.

The test added also checks for named and auto objects.  It seems to make sense
to have this all in one place.

Reviewers: aadg, rsmith, rjmccall, rnk

Reviewed By: rnk

Subscribers: asl, cfe-commits

Differential Revision: http://reviews.llvm.org/D9743

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237383 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237382 91177308-0d34-0410-b5e6-96231b3b80d8

Emit warning when operand to `delete` is allocated with `new[]` or
operand to `delete[]` is allocated with `new`.

Reviewers: rtrieu, jordan_rose, rsmith

Subscribers: majnemer, cfe-commits

Differential Revision: http://reviews.llvm.org/D4661

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237368 91177308-0d34-0410-b5e6-96231b3b80d8

This patch factors out SmallDataThreshold code.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237364 91177308-0d34-0410-b5e6-96231b3b80d8

Add support for ARMv8.1a architecture. 

Briefly it is described on http://community.arm.com/groups/processors/blog/2014/12/02/the-armv8-a-architecture-and-its-ongoing-development

Reviewers: 	jmolloy, rengolin

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D8799


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237349 91177308-0d34-0410-b5e6-96231b3b80d8

This fixes PR23414 as well.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237348 91177308-0d34-0410-b5e6-96231b3b80d8

FIXME: Do we really emit single \ or escaped \\ along the context with -fms-compatibility -MG?

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237338 91177308-0d34-0410-b5e6-96231b3b80d8

MSVC 2015 changed __declspec(thread) to make it behave like C++11's
thread_local keyword instead of acting similarly to __thread.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237337 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237335 91177308-0d34-0410-b5e6-96231b3b80d8

clang/test/Frontend/dependency-gen-escaping.c: Tweak r237296, to let '/' and '\\' distinguishd, to unbreak "--host=linux --target=msvc".

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237333 91177308-0d34-0410-b5e6-96231b3b80d8

xmmintrin.h includes emmintrin.h and vice versa if SSE2 is enabled. We break
this cycle for a modules build, and instead make the xmmintrin.h module
re-export the immintrin.h module. Also included is a fix for an assert in the
serialization code if a module exports another module that was declared later
in the same module map.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237321 91177308-0d34-0410-b5e6-96231b3b80d8

Backslash followed by # in a filename should have both characters
escaped, if you do it the way GNU Make wants.  GCC doesn't, so we do
it the way GCC does rather than the way GNU Make wants.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237304 91177308-0d34-0410-b5e6-96231b3b80d8

Previously we were setting LangOptions::GNUInline (which controls whether we
use traditional GNU inline semantics) if the language did not have the C99
feature flag set. The trouble with this is that C++ family languages also
do not have that flag set, so we ended up setting this flag in C++ modes
(and working around it in a few places downstream by also checking CPlusPlus).

The fix is to check whether the C89 flag is set for the target language,
rather than whether the C99 flag is cleared. This also lets us remove most
CPlusPlus checks. We continue to test CPlusPlus when deciding whether to
pre-define the __GNUC_GNU_INLINE__ macro for consistency with GCC.

There is a change in semantics in two other places
where we weren't checking both CPlusPlus and GNUInline
(FunctionDecl::doesDeclarationForceExternallyVisibleDefinition and
FunctionDecl::isInlineDefinitionExternallyVisible), but this change seems to
put us back into line with GCC's semantics (test case: test/CodeGen/inline.c).

While at it, forbid -fgnu89-inline in C++ modes, as GCC doesn't support it,
it didn't have any effect before, and supporting it just makes things more
complicated.

Differential Revision: http://reviews.llvm.org/D9333

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237299 91177308-0d34-0410-b5e6-96231b3b80d8

When writing a dependency (.d) file, if space or # is immediately
preceded by one or more backslashes, escape the backslashes as well as
the space or # character. Otherwise leave backslash alone.
This straddles the fence between BSD Make (which does no escaping at
all, and does not support space or # in filespecs) and GNU Make (which
does support escaping, but will fall back to the filespec as-written
if the escaping doesn't match an existing file).

Differential Revision: http://reviews.llvm.org/D9208


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237296 91177308-0d34-0410-b5e6-96231b3b80d8

In some rare cases shared copies of lastprivate/firstprivate variables were not updated after the loop directive.


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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237202 91177308-0d34-0410-b5e6-96231b3b80d8

Previously, if a semi-colon is unexpectedly added before a closing ')', ']' or
'}', two errors and one note would emitted, and the parsing would get confused
to which scope it was in.  This change consumes the semi-colon, recovers
parsing better, and emits only one error with a fix-it.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237192 91177308-0d34-0410-b5e6-96231b3b80d8

Patch by Teresa Johnson.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@237187 91177308-0d34-0410-b5e6-96231b3b80d8

GetOutputStream() owns the stream it returns pointer to and the
pointer should never be freed by us. When we fail to load and exit
early, unique_ptr still holds the pointer and frees it which leads to
compiler crash when CompilerInstance attempts to free it again.

Added regression test for failed bitcode linking.

Differential Revision: http://reviews.llvm.org/D9625

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details in http://reviews.llvm.org/D9483
goes with llvm checkin r237150


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'schedule' clause for combined directives requires additional processing. Special helper variable is generated, that is captured in the outlined parallel region for 'parallel for' region. This captured variable is used to store chunk expression from the 'schedule' clause in this 'parallel for' region.



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