This commit adds a named argument to AvailabilityAttr, while r263652 adds an
optional string argument to __attribute__((deprecated)).

This was commited in r263687 and reverted in 263752 due to misaligned
access.

rdar://20588929


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263958 91177308-0d34-0410-b5e6-96231b3b80d8

This makes it easy to add more data into Availability.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263955 91177308-0d34-0410-b5e6-96231b3b80d8

/FC affects if diagnostics print with full paths and if __FILE__ expands with a
full path.  clang-cl does both of these two by default.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263953 91177308-0d34-0410-b5e6-96231b3b80d8

This patch adds a regular expression to configure suffixes of an
included file to check whether it is the "main" include of the current
file. Previously, clang-format has allowed arbitrary suffixes on the
formatted file, which is still the case when no IncludeMainRegex is
specified.

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Implement lambda capture of *this by copy.
For e.g.:
struct A {

  int d = 10;
  auto foo() { return [*this] (auto a) mutable { d+=a; return d; }; }

};

auto L = A{}.foo(); // A{}'s lifetime is gone.

// Below is still ok, because *this was captured by value.
assert(L(10) == 20);
assert(L(100) == 120);

If the capture was implicit, or [this] (i.e. *this was captured by reference), this code would be otherwise undefined.

Implementation Strategy:
  - amend the parser to accept *this in the lambda introducer
  - add a new king of capture LCK_StarThis
  - teach Sema::CheckCXXThisCapture to handle by copy captures of the
    enclosing object (i.e. *this)
  - when CheckCXXThisCapture does capture by copy, the corresponding 
    initializer expression for the closure's data member 
    direct-initializes it thus making a copy of '*this'.
  - in codegen, when assigning to CXXThisValue, if *this was captured by 
    copy, make sure it points to the corresponding field member, and
    not, unlike when captured by reference, what the field member points
    to.
  - mark feature as implemented in svn

Much gratitude to Richard Smith for his carefully illuminating reviews!   


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This reapplies r261552 and r263748. Fixed testcase to reapply.

The VFS overlay mapping between virtual paths and real paths is done through
the 'external-contents' entries in YAML files, which contains hardcoded paths
to the real files.

When a module compilation crashes, headers are dumped into <name>.cache/vfs
directory and are mapped via the <name>.cache/vfs/vfs.yaml. The script
generated for reproduction uses -ivfsoverlay pointing to file to gather the
mapping between virtual paths and files inside <name>.cache/vfs. Currently, we
are only capable of reproducing such crashes in the same machine as they
happen, because of the hardcoded paths in 'external-contents'.

To be able to reproduce a crash in another machine, this patch introduces a new
option in the VFS yaml file called 'overlay-relative'. When it's equal to
'true' it means that the provided path to the YAML file through the
-ivfsoverlay option should also be used to prefix the final path for every
'external-contents'.

Example, given the invocation snippet "... -ivfsoverlay
<name>.cache/vfs/vfs.yaml" and the following entry in the yaml file:

"overlay-relative": "true",
"roots": [
...
  "type": "directory",
  "name": "/usr/include",
  "contents": [
    {
      "type": "file",
      "name": "stdio.h",
      "external-contents": "/usr/include/stdio.h"
    },
...

Here, a file manager request for virtual "/usr/include/stdio.h", that will map
into real path "/<absolute_path_to>/<name>.cache/vfs/usr/include/stdio.h.

This is a useful feature for debugging module crashes in machines other than
the one where the error happened.

Differential Revision: http://reviews.llvm.org/D17457

rdar://problem/24499339

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263893 91177308-0d34-0410-b5e6-96231b3b80d8

Some functions can't have their address taken. If we encounter an
overload set where only one of the candidates can have its address
taken, we should automatically select that candidate in cast
expressions.

Differential Revision: http://reviews.llvm.org/D17701


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263887 91177308-0d34-0410-b5e6-96231b3b80d8

This patch implements the following aspects:

It extends sema to check that a variable is not reference in both a map clause and firstprivate or private. This is needed to ensure correct functioning at codegen level, apart from being useful for the user.
It implements firstprivate for target in codegen. The implementation applies to both host and nvptx devices.
It adds regression tests for codegen of firstprivate, host and device side when using the host as device, and nvptx side.
Please note that the regression test for nvptx codegen is missing VLAs. This is because VLAs currently require saving and restoring the stack which appears not to be a supported operation by nvptx backend.

It adds a check in sema regression tests for target map, firstprivate, and private clauses.

http://reviews.llvm.org/D18203




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263837 91177308-0d34-0410-b5e6-96231b3b80d8

clang -cc1 -ast-print put the struct
definition in the wrong place, like this:

  struct {} typedef S;

The reason that this happens is that the printing code
first prints the struct definition, and then tells the next
declaration to leave out the type. This behavior
is correct for simple variable declarations, but fails for
typedefs (or extern, mutable, etc).

The patch address this problem by skipping the struct
declaration when we first see it, and then telling the first
subsequent declaration that it needs to print out the full
struct definition.

Differential Revision: http://reviews.llvm.org/D17285


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263836 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263816 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
r246764 handled __fp16 arguments and returns for AAPCS, but skipped this
handling for OpenCL.  Simlar to OpenCL, RenderScript also handles __fp16
type natively.

This patch adds the -fnative-half-arguments-and-returns command line
flag to allow such languages to skip this coercion of __fp16.

Reviewers: srhines, olista01

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D18138

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263795 91177308-0d34-0410-b5e6-96231b3b80d8

We lost copy semantics in r263730, because it only worked for a few very
specific cases. Move semantics don't have this issue. Sadly the
implementation is a bit messy but I don't know how to clean it up
without losing support for msvc 2013 :/

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263752 91177308-0d34-0410-b5e6-96231b3b80d8

Tests failing on
http://bb.pgr.jp/builders/cmake-clang-x86_64-linux/builds/46102

This reverts commit a1683cd6c9e07359c09f86e98a4db6b4e1bc51fc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263750 91177308-0d34-0410-b5e6-96231b3b80d8

This reapplies r261552.

The VFS overlay mapping between virtual paths and real paths is done through
the 'external-contents' entries in YAML files, which contains hardcoded paths
to the real files.

When a module compilation crashes, headers are dumped into <name>.cache/vfs
directory and are mapped via the <name>.cache/vfs/vfs.yaml. The script
generated for reproduction uses -ivfsoverlay pointing to file to gather the
mapping between virtual paths and files inside <name>.cache/vfs. Currently, we
are only capable of reproducing such crashes in the same machine as they
happen, because of the hardcoded paths in 'external-contents'.

To be able to reproduce a crash in another machine, this patch introduces a new
option in the VFS yaml file called 'overlay-relative'. When it's equal to
'true' it means that the provided path to the YAML file through the
-ivfsoverlay option should also be used to prefix the final path for every
'external-contents'.

Example, given the invocation snippet "... -ivfsoverlay
<name>.cache/vfs/vfs.yaml" and the following entry in the yaml file:

"overlay-relative": "true",
"roots": [
...
  "type": "directory",
  "name": "/usr/include",
  "contents": [
    {
      "type": "file",
      "name": "stdio.h",
      "external-contents": "/usr/include/stdio.h"
    },
...

Here, a file manager request for virtual "/usr/include/stdio.h", that will map
into real path "/<absolute_path_to>/<name>.cache/vfs/usr/include/stdio.h.

This is a useful feature for debugging module crashes in machines other than
the one where the error happened.

Differential Revision: http://reviews.llvm.org/D17457

rdar://problem/24499339

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263747 91177308-0d34-0410-b5e6-96231b3b80d8

This reverts commit r263738.

This appears to cause a failure in
CXX/temp/temp.decls/temp.friend/p1.cpp

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263740 91177308-0d34-0410-b5e6-96231b3b80d8

Summary: ...as that is apparently what MSVC does

Reviewers: rnk

Patch by Stephan Bergmann

Differential Revision: http://reviews.llvm.org/D15267

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263738 91177308-0d34-0410-b5e6-96231b3b80d8

Remove defaulted move ops, the type is zero-cost copyable anyway, so there's no need for specific move ops

(addresses MSVC build error, since MSVC 2013 can't generate default move
ops)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263732 91177308-0d34-0410-b5e6-96231b3b80d8

Fix implicit copy ctor and copy assignment operator warnings
when -Wdeprecated passed.

Patch by Don Hinton!

Differential Revision: http://reviews.llvm.org/D18123

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263730 91177308-0d34-0410-b5e6-96231b3b80d8

OpenMP 4.0 allows to define custom reduction operations using '#pragma
omp declare reduction' construct. Patch allows to use this custom
defined reduction operations in 'reduction' clauses.

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This commit adds a named argument to AvailabilityAttr, while r263652 adds an
optional string argument to __attribute__((deprecated)). This enables the
compiler to provide Fix-Its for deprecated declarations.

rdar://20588929


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We only add this to __attribute__((deprecated)).

Differential Revision: http://reviews.llvm.org/D17865


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Till now, preserve_mostcc/preserve_allcc calling convention attributes were only
available at the LLVM IR level. This patch adds attributes for
preserve_mostcc/preserve_allcc calling conventions to the C/C++ front-end.

The code was mostly written by Juergen Ributzka.
I just added support for the AArch64 target and tests.

Differential Revision: http://reviews.llvm.org/D18025

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It is faster to directly call the ObjC runtime for methods such as retain/release instead of sending a message to those functions.

This patch adds support for converting messages to retain/release/alloc/autorelease to their equivalent runtime calls.

Tests included for the positive case of applying this transformation, negative tests that we ensure we only convert "alloc" to objc_alloc, not "alloc2", and also a driver test to ensure we enable this only for supported runtime versions.

Reviewed by John McCall.

Differential Revision: http://reviews.llvm.org/D14737

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263607 91177308-0d34-0410-b5e6-96231b3b80d8

r263299 added a fixit for the -Wformat-security warning, but that runs
into complications with our guideline that error recovery should be done
as-if the fixit had been applied. Putting the fixit on a note avoids that.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263584 91177308-0d34-0410-b5e6-96231b3b80d8

Currently when an AST plugin is loaded it must then be enabled by passing
-plugin pluginname or -add-plugin pluginname to the -cc1 command line. This
patch adds a method to PluginASTAction which allows it to declare that the
action happens before, instead of, or after the main AST action, plus the
relevant changes to make the plugin action happen at that time automatically.

Differential Revision: http://reviews.llvm.org/D17959


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This is the companion to an LLVM patch that renamed the function index
data structures and files to use the more general module summary index.

(Recommit after fixing LLVM side to add back missed file)

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263514 91177308-0d34-0410-b5e6-96231b3b80d8

This reverts commit r263491. Missed a file on the LLVM side.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263494 91177308-0d34-0410-b5e6-96231b3b80d8

This is the companion to an LLVM patch that renamed the function index
data structures and files to use the more general module summary index.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263491 91177308-0d34-0410-b5e6-96231b3b80d8

implementation units of modules rather than interface units.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263449 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
The current offloading implementation is using -omptargets and -omp-host-ir-file-path options in the frontend. This causes the user a lot of trouble due to to the conflicts with the -o option. E.g. if the user misspells  omptargets he will end up with a file with a weird name.

This patches replaces these two options with  -fomptargets and -fomp-host-ir-file-path to avoid these issues, and it is also more consistent with the other options like -fopenmp.

Reviewers: hfinkel, carlo.bertolli, arpith-jacob, kkwli0, ABataev

Subscribers: cfe-commits, caomhin, fraggamuffin

Differential Revision: http://reviews.llvm.org/D18112

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263442 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
This flag is enabled by default in the driver when NDEBUG is set. It
is forwarded on the LLVMContext to discard all value names (but
GlobalValue) for performance purpose.

This an improved version of D18024

Reviewers: echristo, chandlerc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D18127

From: Mehdi Amini <mehdi.amini@apple.com>

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263394 91177308-0d34-0410-b5e6-96231b3b80d8

To make this work, delay printing of ExtraDeps in HeaderIncludesCallback a bit,
so that it happens after CompilerInstance::InitializeSourceManager() has run.

General /FI arguments are still missing from /showIncludes output, this still
needs to be fixed.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263352 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263194 91177308-0d34-0410-b5e6-96231b3b80d8