llvm-svn: 262882

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.

llvm-svn: 262881

llvm-svn: 262880

llvm-svn: 262879

llvm-svn: 262878

llvm-config can know tell whether or not a build has been configured to support
global-isel.
Use '--has-global-isel' for that.

llvm-svn: 262877

TSan instrumentation functions for atomic stores, loads, and cmpxchg work on
integer value types. This patch adds casts before calling TSan instrumentation
functions in cases where the value is a pointer.

Differential Revision: http://reviews.llvm.org/D17833

llvm-svn: 262876

This should make it clearer how this proposed patch:
http://reviews.llvm.org/D11393
...will change codegen.

llvm-svn: 262875

I noticed this test as part of:
http://reviews.llvm.org/D11393
...which is confusing enough as-is. 
Let's show the exact codegen, so the changes will be more obvious.

llvm-svn: 262874

Now the type API is always available, but when global-isel is not
built the implementation does nothing.

Note: The implementation free of ifdefs is WIP and tracked here in PR26576.
llvm-svn: 262873

Implement support for [[nodiscard]] in C++1z that is based off existing support for warn_unused_result, and treat it as an extension pre-C++1z. This also means extending the existing warn_unused_result attribute so that it can be placed on an enum as well as a class.

llvm-svn: 262872

llvm-svn: 262871

Summary: It is not used.

Reviewers: lhames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D17251

llvm-svn: 262870

The mir infrastructure will need this for generic instructions and currently
this feature was only available through the anonymous TypePrinter class.

llvm-svn: 262869

This is useful for MIR serialization. Indeed generic machine instructions
must have a type and we don't want to duplicate the logic in the MIParser.

llvm-svn: 262868

llvm-svn: 262867

non-member swap for array was mistakenly taking const ref params. Fixed and added test. Thanks to Ben Craig for the catch

llvm-svn: 262866

llvm-svn: 262865

llvm-svn: 262864

to each other.  This should remove some infrequent teardown crashes when the
listener is not the debugger's listener.

Processes now need to take a ListenerSP, not a Listener&.

This required changing over the Process plugin class constructors to take a ListenerSP, instead
of a Listener&.   Other than that there should be no functional change.
 
<rdar://problem/24580184> CrashTracer: [USER] Xcode at …ework: lldb_private::Listener::BroadcasterWillDestruct + 39

llvm-svn: 262863

llvm-svn: 262862

This is required for mir testing.

llvm-svn: 262861

llvm-svn: 262860

llvm-svn: 262859

llvm-svn: 262858

The cause trouble in the doxygen output.

llvm-svn: 262857

One additional pointer is not a big deal size-wise and it makes
the code much nicer!

llvm-svn: 262856

(and test if doxygen is updated on-commit)

llvm-svn: 262855

llvm-svn: 262854

llvm-svn: 262853

Problem not hit by any in tree target.

llvm-svn: 262852

whose DeclContext is not yet complete by deferring their emission.

rdar://problem/24918680

llvm-svn: 262851

llvm-svn: 262850

llvm-svn: 262849

llvm-svn: 262848

Differential Revision: http://reviews.llvm.org/D17919

llvm-svn: 262847

llvm-svn: 262846

Reviewers: compnerd, skalinichev

Differential Revision: http://reviews.llvm.org/D17278

llvm-svn: 262845

This lets select sub-targets enable this pass.  The patch implements the
idea from the recent llvm-dev thread:
http://thread.gmane.org/gmane.comp.compilers.llvm.devel/94925

The goal is to enable the LoopDataPrefetch pass for the Cyclone
sub-target only within Aarch64.

Positive and negative tests will be included in an upcoming patch that
enables selective prefetching of large-strided accesses on Cyclone.

llvm-svn: 262844

Until now curly braces could only be used in MS inline assembly to mark block start/end.
All curly braces were removed completely at a very early stage.
This approach caused bugs like:
"m{o}v eax, ebx" turned into "mov eax, ebx" without any error.

In addition, AVX-512 added special operands (e.g., k registers), which are also surrounded by curly braces that mark them as such.
Now, we need to keep the curly braces and identify at a later stage if they are marking block start/end (if so, ignore them), or surrounding special AVX-512 operands (if so, parse them as such).

This patch fixes the bug described above and enables the use of AVX-512 special operands.

This commit is the the llvm part of the patch.
The clang part of the review is: http://reviews.llvm.org/D17766
The llvm part of the review is: http://reviews.llvm.org/D17767

Differential Revision: http://reviews.llvm.org/D17767

llvm-svn: 262843