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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The other sanitizers don't have backend passes that rely on value names.
Avoid paying the compile time cost of names there.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263541 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.

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

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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

This is a big update that gets the public configurations more in line with the ones we're actually using internally to ship Clang in Xcode.

From here forward I expect most of the changes in these files to be incremental as the changes get made internally.

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Should fix ARM bots.

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Automatic Semicolon Insertion can only be properly handled by parsing
source code. However conservatively catching just a few, common
situations prevents breaking code during development, which greatly
improves usability.

JS code should still use semicolons, and ASI code should be flagged by
a compiler or linter.

Patch by Martin Probst. Thank you.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263470 91177308-0d34-0410-b5e6-96231b3b80d8

The relative vtable ABI will use a struct rather than an array as the type
of a vtable. LLVM only allows 32-bit integers as struct indices, so we need
to use 32-bit integers to get addresses of address points. In order to keep
the code simple, we might as well do that unconditionally.

It's probably a reasonable implementation limit to support no more than 2
billion virtual functions per class.

This change causes quite a bit of churn in the test suite, so I'm making
it separately.

Differential Revision: http://reviews.llvm.org/D18113

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This marks virtual function declarations, as well as runtime library functions
__cxa_pure_virtual, __cxa_deleted_virtual and _purecall, as unnamed_addr. This
will allow us to correctly form relative references to them from vtables in
the relative vtable ABI.

Differential Revision: http://reviews.llvm.org/D18071

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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

Revert "Recommitted r261634 "Supporting all entities declared in lexical scope in LLVM debug info." After fixing PR26715 at r263379."

This reverts commit r263425. Breaks self-host.

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Also use -stdlib=platform instead of -stdlib=libstdc++ when testing if Clang
chooses the correct default for the given platform.

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Also introduce -stdlib=platform to override the configured value
and use it to make the tests always pass.

Differential Revision: http://reviews.llvm.org/D17286

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ASan also relies on names on allocas and will emit unhelpful output if
they're not present. Just force-enable value names for now. Should
unbreak release builds of asan.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263429 91177308-0d34-0410-b5e6-96231b3b80d8

After fixing PR26715 at r263379.

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This enables "--rtlib compiler-rt" option under MSVC environment.

Patch by Roman Shirokiy.

Differential Revision: http://reviews.llvm.org/D17453


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trying to track origins in the memory sanitizer since the backend
instrumentation pass currently takes names from the Instruction.

Fixes all of the origin tracking tests in compiler-rt after the
-discard-value-name option was added.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263412 91177308-0d34-0410-b5e6-96231b3b80d8

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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>

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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263353 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

We almost get this right, but not completely (see FIXME).  It looks like /FI
headers generally aren't included in /showIncludes yet, but they should be.
But it seems good to have test coverage for the bits that already work.


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commit 60d9845f
Author: Mehdi Amini <mehdi.amini@apple.com>
Date:   Fri Mar 11 18:48:02 2016 +0000

    Fix clang crash: when CodeGenAction is initialized without a
    context, use the member and not the parameter

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

    git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263273
    91177308-0d34-0410-b5e6-96231b3b80d8

commit af7ce3bf
Author: Mehdi Amini <mehdi.amini@apple.com>
Date:   Fri Mar 11 17:32:58 2016 +0000

    Fix build: use -> with pointers and not .

    Silly typo.

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

    git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263267
    91177308-0d34-0410-b5e6-96231b3b80d8

commit d0eea119
Author: Mehdi Amini <mehdi.amini@apple.com>
Date:   Fri Mar 11 17:15:44 2016 +0000

    Remove compile time PreserveName switch based on NDEBUG

    Summary:
    Following r263086, we are now relying on a flag on the Context to
    discard Value names in release builds.

    Reviewers: chandlerc

    Subscribers: cfe-commits

    Differential Revision: http://reviews.llvm.org/D18024

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

    git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263257
    91177308-0d34-0410-b5e6-96231b3b80d8

until we can fix the Release builds.

This reverts commits 263257, 263267, 263273

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__always_inline__, this has likely been meant from the start.

Review: http://reviews.llvm.org/D18015

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This affects code completion and a few other things; hopefully the code completion
test is sufficient to catch regressions.

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This feature works outside of templates by forming a DeclRefExpr to a
FieldDecl instead of a MemberExpr, which requires a base object in
addition to the FieldDecl.

Previously, while building up the template AST before instantiation, we
formed a CXXDependentScopeMemberExpr, which always instantiates to a
MemberExpr. Now, in unevaluated contexts we form a
DependentScopeDeclRefExpr, which is a more flexible node that can
instantiate to either a MemberExpr or a DeclRefExpr depending on lookup
results.

Fixes PR26893.

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Fix clang crash: when CodeGenAction is initialized without a context, use the member and not the parameter

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263273 91177308-0d34-0410-b5e6-96231b3b80d8

With the new EH representation this is no longer necessary.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263269 91177308-0d34-0410-b5e6-96231b3b80d8

Silly typo.

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263267 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
Following r263086, we are now relying on a flag on the Context to
discard Value names in release builds.

Reviewers: chandlerc

Subscribers: cfe-commits

Differential Revision: http://reviews.llvm.org/D18024

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

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@263257 91177308-0d34-0410-b5e6-96231b3b80d8