[CMake] Get rid of LLVM_DYLIB_EXPORT_ALL, and make it the default, add libLLVM-C on darwin to cover the C API needs.

Summary:
We've had a lot of discussion in the past about the meaningful and useful default behaviors for the llvm-shlib tool. The original implementation was heavily geared toward Apple's use, and I think that was wrong. This patch seeks to correct that.

I've removed the LLVM_DYLIB_EXPORT_ALL variable and made libLLVM export everything by default.

I've also added a new target that is only built on Darwin for libLLVM-C as a library that re-exports the LLVM-C API. This library is not built on Linux because ELF doesn't support re-export libraries in the same way MachO does.

Reviewers: chapuni, resistor, bogner, axw

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D13842

llvm-svn: 251411

Expose isMutable via libClang and python bindings.

Patch by Jonathan B Coe!

llvm-svn: 251410

convert float to half with mask/maskz for the reg to reg version and mask for the reg to mem version (there is no maskz version for reg to mem).

Differential Revision: http://reviews.llvm.org/D14113

llvm-svn: 251409

This matches ld.bfd and ld.gold behavior. The change is simple enough
and avoid trouble to consumers (they don't have to change their Makefiles).
Side note: found while trying to build FreeBSD base system with lld.

llvm-svn: 251408

llvm-svn: 251407

Specifically, don't wrap between the {} of an empty constructor if the
"}" falls on column 81 and ConstructorInitializerAllOnOneLineOrOnePerLine
is set.

llvm-svn: 251406

Summary:
If this option is set, clang-format will always insert a line wrap, e.g.
before the first parameter of a function call unless all parameters fit
on the same line. This obviates the need to make a decision on the
alignment itself.

Use this style for Google's JavaScript style and add some minor tweaks
to correctly handle nested blocks etc. with it. Don't use this option
for for/while loops.

Reviewers: klimek

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D14104

llvm-svn: 251405

llvm-svn: 251404

llvm-svn: 251403

* Remove an unneccessary re-computaion on arch spec from the ELF file
* Use a local cache to optimize name based section lookups in symtab
  parsing
* Optimize C++ method basename validation with replacing a regex with
  hand written code

These modifications reduce the time required to parse the symtab from
large applications by ~25% (tested with LLDB as inferior)

Differential revision: http://reviews.llvm.org/D14088

llvm-svn: 251402

Summary: After D13851 landed, we saw backend crashes when compiling the reduced test case included in this patch. The right fix seems to be to allow these vector types for expansion in instruction selection.

Reviewers: rengolin, t.p.northover

Subscribers: RKSimon, t.p.northover, aemerson, llvm-commits, rengolin

Differential Revision: http://reviews.llvm.org/D14082

llvm-svn: 251401

Summary:
This change deprecates -m/+m dotest options (the options are still recognized but they print an
error message pointing to the new options) and adds a new lldb-mi test category instead. To just
run lldb-mi tests, use '-G lldb-mi'. To skip lldb-mi tests, use '--skip-category lldb-mi'. All
lldb-mi tests are marked as such using the getCategories method on the base MiTestCaseBase class
and the @lldbmi_test decorator is not needed. In case one still needs to annotate a specific test
function as an lldb-mi test, one can use the @add_test_categories(['lldb-mi']) decorator to
achieve that.

Reviewers: tfiala, dawn, ki.stfu, abidh

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D14060

llvm-svn: 251400

Summary:
Gdb-remote's async thread sent out the eBroadcastBitRunPacketSent message *before* actually
sending out the continue packet. Since it's this message the actually triggers the public state
transition, it could happen (and it did happen in TestAttachResume, which does an "process
interrupt" right after a continue) that we attempt to stop the inferior before it was actually
started (which obviously did not end well). This fixes the problem by moving the broadcast after
the packet was actually sent.

Reviewers: clayborg

Subscribers: lldb-commits

Differential Revision: http://reviews.llvm.org/D14083

llvm-svn: 251399

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 251398

hopefully make bots happy again.

llvm-svn: 251397

llvm-svn: 251396

We want to insert no-op casts as close as possible to the def.  This is
tricky when the cast is of a PHI node and the BasicBlocks between the
def and the use cannot hold any instructions.  Iteratively walk EH pads
until we hit a non-EH pad.

This fixes PR25326.

llvm-svn: 251393

llvm-svn: 251391

GNU tools require elfiamcu to take up the entire OS field, so, e.g.
i?86-*-linux-elfiamcu is not considered a legal triple.
Make us compatible.

Differential Revision: http://reviews.llvm.org/D14081

llvm-svn: 251390

only one of a group of possibilities.

This changes the syntax in the builtin files to represent:

, as the and operator
| as the or operator

The former syntax matches how the backend tablegen files represent
multiple subtarget features being required.

Updated the builtin and intrinsic headers accordingly for the new
syntax.

llvm-svn: 251388

of await_* calls, and AST representation for same.

llvm-svn: 251387

Differential revision: http://reviews.llvm.org/D14051

llvm-svn: 251386

Create undef reference to profile hook symbol when
PGO instrumentation is turned on. This allows 
LLVM to omit emission of hook variable use method
for every single module instrumented.

llvm-svn: 251385

allow them to be written in certain kinds of user declaration and
diagnose on the use-site instead.

Also, improve and fix some diagnostics relating to __weak and
properties.

rdar://23228631

llvm-svn: 251384

llvm-svn: 251383

Convert cost table lookup functions to return a pointer to the entry or nullptr instead of the index.

This avoid mentioning the table name an extra time and allows the lookup to be done directly in the ifs by relying on the bool conversion of the pointer.

While there make use of ArrayRef and std::find_if.

llvm-svn: 251382

No functionality changed here, but the indentation is substantially
reduced and IMO the code is much easier to read. I've also added some
helpful comments.

This is just a clean-up I wrote while studying the code, and that has
been in my backlog for a while.

llvm-svn: 251381

Use `getUnsignedMax` directly instead of special casing a wrapped
ConstantRange.

The previous code would have been "buggy" (and this would have been a
semantic change) if LLVM allowed !range metadata to denote full
ranges. E.g. in

  %val = load i1, i1* %ptr, !range !{i1 1, i1 1} ;; == full set

ValueTracking would conclude that the high bit (IOW the only bit) in
%val was zero.

Since !range metadata does not allow empty or full ranges, this change
is just a minor stylistic improvement.

llvm-svn: 251380

llvm-svn: 251379

If we have an operand to a bitwise logic op that's already in
an XMM register and the result is going to be sent to an XMM
register, then use an SSE logic op to avoid moves between the
integer and vector register files.

Related commits:
http://reviews.llvm.org/rL248395
http://reviews.llvm.org/rL248399
http://reviews.llvm.org/rL248404
http://reviews.llvm.org/rL248409
http://reviews.llvm.org/rL248415

This should solve PR22428:
https://llvm.org/bugs/show_bug.cgi?id=22428

llvm-svn: 251378

llvm-svn: 251377

llvm-svn: 251376

llvm-svn: 251375

Fix Clang-tidy modernize-use-override warnings in source/Plugins/LanguageRuntime and Platform; other minor fixes.

llvm-svn: 251374

When taking the remainder of a value divided by a constant, visitREM()
attempts to convert the REM to a longer but faster sequence of instructions.
This conversion calls combine() on a speculative DIV instruction. Commit
rL250825 may cause this combine() to return a DIVREM, corrupting nearby nodes.
Flow eventually hits unreachable().

This patch adds a test case and a check to prevent visitREM() from trying
to convert the REM instruction in cases where a DIVREM is possible.
See http://reviews.llvm.org/D14035

llvm-svn: 251373

llvm-svn: 251372

llvm-svn: 251371

llvm-svn: 251370

Summary:
Previously we maintained two separate switch statements that had to be kept in
sync. This patch merges them into a single switch.

Reviewers: vkalintiris

Subscribers: llvm-commits, dsanders

Differential Revision: http://reviews.llvm.org/D14012

llvm-svn: 251369

On some combination of platform and c++ library, this dependency was causing the test to fail for reasons tangential to its real objective

llvm-svn: 251368