This is based on post-commit feedback from Vedant. Totally didn't know that existed and worked on Windows.

Thanks Vedant!

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Sean provided feedback based on r257934 on cfe-commits. This change addresses that feedback.

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When LIT parallelizes the profraw file generation we need to generate unique temp filenames then clean them up after the driver executes.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@264021 91177308-0d34-0410-b5e6-96231b3b80d8

With this change, the class

  struct A {
    A(int _i);
    ~A();
    int foo(double d);
    double bar(A *a) { return 1.3; }
  };

appears in the VS2015 Locals Window as

D              0x02dbb378 struct A
|- DeclKind    CXXRecord
|- Members
 |- [0]        implicit struct A
 |- [1]        Constructor {A(int _i)}
 |- [2]        Destructor {~A()}
 |- [3]        Method {int foo(double d)}
 |- [4]        Method {double bar(struct A *)}
|- [Raw View]  /* Other stuff */

Note that these changes only benefit VS2015 as
VS2013 does not have views and only displays the
struct name "A", but the change does no apparent
harm in VS2013, so is still a win.


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This patch adds a new set of substitutions to the lit run lines for order files and PGO generation which run the clang driver to get the cc1 command, then execute the cc1 command directly. This allows the scripts to bypass profiling the clang driver over and over again.

The approach in this patch was discussed via IRC with Sean Silvas.

Special thanks to Daniel Dunbar whose out-of-tree code I liberally plagiarized.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263997 91177308-0d34-0410-b5e6-96231b3b80d8

Readably displays a FunctionDecl in the Visual Studio Locals Window something like:
  void g(int, double d, struct A && arr)




git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263915 91177308-0d34-0410-b5e6-96231b3b80d8

Whenever possible, use C++ names for visualizing builtin types. E.g., "long double" instead of "LongDouble"


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263891 91177308-0d34-0410-b5e6-96231b3b80d8

Displays return type and parameters for the Function Protoype object in the Locals window.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263890 91177308-0d34-0410-b5e6-96231b3b80d8

This change shows members of DeclContext objects in the Visual Studio debugger. It will also cast a TagType like a class or a struct to a DeclContext, so its methods and fields are visualized. 



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263794 91177308-0d34-0410-b5e6-96231b3b80d8

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

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


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Created visualizer for PointerType, LValueReferenceType, RValueReferenceType, and TemplateParmType.
In addition, cleaned up the display of existing types to be more C++-like. For example, instead of

  SubstTemplateTypeParmType: {Identifier (("T"))} => Record (25), {Identifier (("A"))}

it now displays more readably as 

  SubstTemplateTypeParmType: {typename T <= struct A}

The <expand> sections still can be used for all the gory details if necessary.



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This is one of a series of changes to improve the MSVC visualization of Clang types.
This one focuses on Record and SubstTemplateTypeParmType meaning that, for example,
a TemplateArgumentLoc no longer displays incomprehensibly in the locals window as

  {Argument={DeclArg={Kind=1 QT=0x033acb00 D=0xcccccccc {DeclType=???}}...

but instead much more usefully as

  Type template parameter: SubstTemplateTypeParm: {Identifier (("T"))} => Record, {Identifier (("A"))}

Additional types and improvements will be made in subsequent commits



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exactly the same as clang's existing [[clang::fallthrough]] attribute, which
has been updated to have the same semantics. The one significant difference
is that [[fallthrough]] is ill-formed if it's not used immediately before a
switch label (even when -Wimplicit-fallthrough is disabled). To support that,
we now build a CFG of any function that uses a '[[fallthrough]];' statement
to check.

In passing, fix some bugs with our support for statement attributes -- in
particular, diagnose their use on declarations, rather than asserting.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@262881 91177308-0d34-0410-b5e6-96231b3b80d8

I've tried to keep the infrastructure behind parameter ABI
treatments fairly general.

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This should make it easier to add new Attr subclasses.

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This appears to be passing '-Wl,-order_file' to Linux link commands,
which then causes the linker to silently, behind the scenes, write the
output to 'rder_file' instead of somewhere else. Will work with Chris to
figure out the proper support for this, but so far there are numerous
people who can't get Clang to update when they build because of this.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@261054 91177308-0d34-0410-b5e6-96231b3b80d8

Storing std::strings in attributes simply doesn't work, we never call
the destructor. Use an array of StringRefs instead of std::strings and
copy the data into memory taken from the ASTContext.

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Summary:
This commit re-lands r259862. The underlying cause of the build breakage was an incorrectly written capabilities test. In tools/Driver/CMakeLists.txt I was attempting to check if a linker flag worked, the test was passing it to the compiler, not the linker. CMake doesn't have a linker test, so we have a hand-rolled one.

Original Patch Review: http://reviews.llvm.org/D16896

Original Summary:
With this change generating clang order files using dtrace uses the following workflow:

cmake <whatever options you want>

ninja generate-order-file

ninja clang

This patch works by setting a default path to the order file (which can be overridden by the user). If the order file doesn't exist during configuration CMake will create an empty one.

CMake then ties up the dependencies between the clang link job and the order file, and generate-order-file overwrites CLANG_ORDER_FILE with the new order file.

Reviewers: bogner

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D16999

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This reverts commit r259862, and attempts to fix builder CMakeCaches.

Will try this again some other time...

Conflicts:

	CMakeLists.txt
	tools/driver/CMakeLists.txt

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Summary:
With this change generating clang order files using dtrace uses the following workflow:

cmake <whatever options you want>

ninja generate-order-file

ninja clang

This patch works by setting a default path to the order file (which can be overridden by the user). If the order file doesn't exist during configuration CMake will create an empty one.

CMake then ties up the dependencies between the clang link job and the order file, and generate-order-file overwrites CLANG_ORDER_FILE with the new order file.

Reviewers: bogner

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D16896

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@259862 91177308-0d34-0410-b5e6-96231b3b80d8

These files are standalone and not integrated with CMake, so we probably want them.

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Summary:
This patch is provided in preparation for removing autoconf on 1/26. The proposal to remove autoconf on 1/26 was discussed on the llvm-dev thread here: http://lists.llvm.org/pipermail/llvm-dev/2016-January/093875.html

    "This is the way [autoconf] ends
    Not with a bang but a whimper."
    -T.S. Eliot

Reviewers: chandlerc, grosbach, bob.wilson, echristo

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D16472

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The html reports are huge -- every issue in a given file results in a separate
copy of the source code, in HTML form, for the file. This gets very large
quickly and it doesn't make sense to check this into a reference repository.
Also remove the log when generating reference results because it can leak
absolute path names. We still keep both the html and the log around when
producing non-reference results.

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I missed this one in r258493.

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The Jenkins workspace on the new Green Dragon builder for the static analyzer has spaces
in its path.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@258493 91177308-0d34-0410-b5e6-96231b3b80d8

[TableGen] Merge the SuperClass Record and SMRange vector a single vector. This removes the state needed to manage the extract vector. NFC

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Based on feedback from bogner.

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Summary:
This patch extends the lit-based perf-training tooling supplied for PGO data generation to also generate linker order files using dtrace.

This patch should work on any system that has dtrace. If CMake can find the dtrace tool it will generate a target 'generate-order-file' which will run the per-training tests wrapped by dtrace to capture function entries. There are several algorithms implemented for sorting the order files which can be experimented with for best performance. The dtrace wrapper also supports bot oneshot and pid probes.

The perf-helper.py changes to support order file construction are ported from internal changes by ddunbar; he gets all the credit for the hard work here, I just copy and pasted.

Note: I've tested these patches on FreeBSD and OS X 10.10.

Reviewers: ddunbar, bogner, silvas

Subscribers: llvm-commits, emaste

Differential Revision: http://reviews.llvm.org/D16134

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[TableGen] Call llvm_shutdown on exit so that all the ManagedStatic objects in the support library will be deleted.

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Turns out cc1's flag has 1 - not 2...

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Adding in a few more lit substitutions for cc1 and the test exec path.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@256057 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
This patch adds support for using LIT to drive generating PGO profile data for clang.

This first pass implementation should work on Linux and Unix based platforms. If you build clang using CMake with LLVM_BUILD_INSTRUMENTED=On the CMake build generates a generate-profdata target that will use the just-built clang to build any test files (see hello_world.cpp as an example). Each test compile will generate profraw files for each clang process. After all tests have run CMake will merge the profraw files using llvm-profdata.

Future opportunities for extension:
* Support for Build->Profile->Build bootstrapping
* Support for linker order file generation using a similar mechanism and the same training data
* Support for Windows

Reviewers: dexonsmith, friss, bogner, cmatthews, vsk, silvas

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D15462

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Differential revision: http://reviews.llvm.org/D15313


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Do not crash when dumping the objc_bridge_related attribute when its optional arguments are not supplied.

Patch thanks to Joe Ranieri!

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Currently the SATestBuild.py and SATestAdd.py buildbot scripts expect project
sources to be checked into the project repository. This commit changes these
scripts to additionally support a model where project sources are downloaded
rather than checked into the repository. Sometimes projects may need to be
modified (for example, to support a newer versions of clang), so the updated scripts
also allow for an optional patch file that will be applied to the downloaded
project source before analysis.

To support this workflow, this commit changes the expected layout of
a project in the repository. The project-specific helper scripts will stay
in the root of each project directory, but the benchmark source itself (if
checked into the repo) should now be stored in a subdirectory named
'CachedSource':

  project_name/
    cleanup_run_static_analyzer.sh [optional]
    run_static_analyzer.cmd [required]
    download_project.sh [optional]
    CachedSource/ [optional]
    changes_for_analyzer.patch [optional]

If the 'CachedSource' source directory is not present, the download script will
be executed. This script should download the project source into 'CachedSource'.
Then, if 'changes_for_analyzer.patch' is present its changes will
be applied to a copy of 'CachedSource' before analysis.

Differential Revision: http://reviews.llvm.org/D14345

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Fake arguments are automatically handled for serialization, cloning,
and other representational tasks, but aren't included in pretty-printing
or parsing (should we eventually ever automate that).

This is chiefly useful for attributes that can be written by the
user, but which are also frequently synthesized by the compiler,
and which we'd like to remember details of the synthesis for.
As a simple example, use this to narrow the cases in which we were
generating a specialized note for implicitly unavailable declarations.

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