functionality change; this information is not yet in use.

llvm-svn: 269382

llvm-svn: 269381

Having the MachO enums in a def file instead of inline will allow us to write utilities and encoding/decoding methods for load commands without having to write a lot of mechanically repeated code.

llvm-svn: 269380

This one has a lot of code churn, but it's all mechanical and
straightforward.

- Where we were returning a node before, call ReplaceNode instead.
- Where we would return null to fall back to another selector, rename
  the method to try* and return a bool for success.
- Where we were calling SelectNodeTo, just return afterwards.

Part of llvm.org/pr26808.

llvm-svn: 269379

<rdar://problem/26207478>

llvm-svn: 269378

The main issues were:
- Listeners recently were converted over to used by getting a shared pointer to a listener. And when they listened to broadcasters they would get a strong reference added to them meaning the listeners would never go away. This caused memory usage to increase and would cause performance issue if many steps were done.
- The lldb_private::Process private state thread had an issue where if a "stop" contol signal was attempted to be sent to that thread, it could end up not responding in 2 seconds and end up getting cancelled which might cause us to cancel a thread that had a mutex locked and it would deadlock the test.

This change makes broadcasters hold onto weak references to listeners. It also fixes some bad threading code that had races inside of it by making the m_events_mutex be non-recursive and getting rid of fragile use of a Predicate<bool> to say that new events are available, and replacing it with using the m_events_mutex with a new m_events_condition to control access to the events in a safer way.

The private state thread now uses a safer way to communicate that the control event has been received by the private state thread: it makes a EventDataReceipt instance that it attaches to the event that sends the control to the private state thread and used this to synchronize the fact that the private state thread has received the event instead of using a Predicate<bool> to convey the info. When the signal event is received, it will pull the event off of the queue in the private state thread and cause the EventData::DoOnRemoval() to be called, which will signal that the event has been received. This cleans up the signal delivery notification so it doesn't rely on a member variable of the process class to convey the info.

std::shared_ptr<EventDataReceipt> event_receipt_sp(new EventDataReceipt());
m_private_state_control_broadcaster.BroadcastEvent(signal, event_receipt_sp);

<rdar://problem/26256353> Listeners are being kept around longer than they should be due to recent changs
<rdar://problem/26256258> Private process state thread can be cancelled and cause deadlocks in test suite

llvm-svn: 269377

llvm-svn: 269376

The first part handles whatever has to be written to the r_offset
position.

The second part handles creating got and plt entries.

llvm-svn: 269375

Also stop visiting type records when we encounter an error.

llvm-svn: 269374

<rdar://problem/26256049>

llvm-svn: 269373

The adding of <atomic> to test_common.h broke 12 tests on Darwin. We work around this by not including <atomic> when building on darwin for libstdc++ tests.

llvm-svn: 269372

Reduce space in empty constructors and between data members and first public section.

Fix some Include What You Use warnings.

Differential revision: http://reviews.llvm.org/D20213

llvm-svn: 269371

Ported DA to the new PM by splitting the former DependenceAnalysis Pass
into a DependenceInfo result type and DependenceAnalysisWrapperPass type
and adding a new PM-style DependenceAnalysis analysis pass returning the
DependenceInfo.

Patch by Philip Pfaffe, most of the review by Justin.

Differential Revision: http://reviews.llvm.org/D18834

llvm-svn: 269370

llvm-svn: 269369

Dynamic table when printed shows uppercase tag/values.
This changes it to lower case when printing in GNU style

llvm-svn: 269368

Refactor constant expression evaluation of CXXConstructExpr to reduce duplication between array and class initialization.

llvm-svn: 269367

llvm-svn: 269366

This change adds a new entry point,
kmp_aligned_malloc(size_t size, size_t alignment), an entry point corresponding
to kmp_malloc() but with the capability to return aligned memory as well.
Other allocator routines have been adjusted so that kmp_free() can be used for
freeing memory blocks allocated by any kmp_*alloc() routine, including the new
kmp_aligned_malloc() routine.

Differential Revision: http://reviews.llvm.org/D19814

llvm-svn: 269365

- Where we were returning a node before, call ReplaceNode instead.
- Where we were calling SelectNodeTo, just return afterwards.

Part of llvm.org/pr26808.

llvm-svn: 269364

After hot teams were enabled by default, the library started using levels kept
in the team structure. The levels are broken in case foreign thread exits and
puts its team into the pool which is then re-used by another foreign thread.
The broken behavior observed is when printing the levels for each new team, one
gets 1, 2, 1, 2, 1, 2, etc. This makes the library believe that every other
team is nested which is incorrect. What is wanted is for the levels to be
1, 1, 1, etc.

Differential Revision: http://reviews.llvm.org/D19980

llvm-svn: 269363

This is similar to the other changes this function does. With this all
Relocations.push_back calls look similar.

llvm-svn: 269362

I will commit again with a fixed commit message.

llvm-svn: 269361

This is similar to the other changes this function does. With this all
Relocations.push_back calls look similar.

llvm-svn: 269360

llvm-svn: 269359

- Where we were returning a node before, call ReplaceNode instead.
- Where we had already replaced all uses and we returned a node, just
  remove the dead node instead.
- Where we would return null to fall back to another selector, rename
  the method to try* and return a bool for success.

Part of llvm.org/pr26808.

llvm-svn: 269358

Move runtime specific code from the common header file
to runtime source.

llvm-svn: 269357

llvm-svn: 269356

When we convert to the void Select interface, leaving unreferenced
nodes around won't be allowed anymore.

Part of llvm.org/pr26808.

llvm-svn: 269355

This change implements the transformation in processInstruction() for the
LDR rt, =expression to MOV rt, expression when the expression can be evaluated
and can fit into the immediate field of the MOV or a MVN.

Across the ARM and Thumb instruction sets there are several cases to consider,
each with a different range of representatble constants.

In ARM we have:
 * Modified immediate (All ARM architectures)
 * MOVW (v6t2 and above)

In Thumb we have:
 * Modified immediate (v6t2, v7m and v8m.mainline)
 * MOVW (v6t2, v7m, v8.mainline and v8m.baseline)
 * Narrow Thumb MOV that can be used in an IT block (non flag-setting)

If the immediate fits any of the available alternatives then we make the transformation.

Fixes 25722.

Patch by Peter Smith.

llvm-svn: 269354

Alter instances in the test-suite that use immediates that can be represented
in the immediate field of a MOV. The reason for doing this is that when the
LDR rt,=imm transformation to MOV rt, imm the existing tests do not need to
be modified.

Required by the patch that fixes PR25722.

Patch by Peter Smith.

llvm-svn: 269353

This change adds a new constant pool kind to ARMOperand. When parsing the
operand for =immediate we create an instance of this operand rather than
creating a constant pool entry and rewriting the operand.

As the new operand kind is only created for ldr rt,= we can make ldr rt,=
an explicit pseudo instruction in ARM, Thumb and Thumb2

The pseudo instruction is expanded in processInstruction(). This creates the
constant pool and transforms the pseudo instruction into a pc-relative ldr to
the constant pool.

There are no functional changes and no modifications needed to existing tests.

Required by the patch that fixes PR25722.

Patch by Peter Smith.

llvm-svn: 269352

llvm-svn: 269351

- Where we were returning a node before, call ReplaceNode instead.
- Where we were calling SelectNodeTo, just return afterwards.

Part of llvm.org/pr26808.

llvm-svn: 269350

- Where we were returning a node before, call ReplaceNode instead.
- Where we would return null to fall back to another selector, rename
  the method to try* and return a bool for success.
- Where we were calling SelectNodeTo, just return afterwards.

Part of llvm.org/pr26808.

llvm-svn: 269349

Split FCMP//ICMP/SEL from the basic arithmetic cost functions. They were not sharing any notable code path (just the return) and were repeatedly testing the opcode.

llvm-svn: 269348

Summary:
This patch moves the enum definitions to a definition (.def) file.

These modifications provide way to list enumerators of a given type.

As an example, this allow parsing of "kinds" in the dynamic matchers.
see: http://reviews.llvm.org/D19871
The dynamic matcher "ofKind" also required this patch to be fixed.

Reviewers: klimek, aaron.ballman, rsmith

Subscribers: klimek, sbenza, alexfh, cfe-commits

Differential Revision: http://reviews.llvm.org/D20207

llvm-svn: 269347

[Docs] clarify semantics of x.with.overflow intrinsics

Differential Revision: http://reviews.llvm.org/D20151

llvm-svn: 269346

When we convert to the void Select interface, leaving unreferenced
nodes around won't be allowed anymore.

Part of llvm.org/pr26808.

llvm-svn: 269345

This reverts commit r269016 and also the follow-up commit r269020.

This patch caused PR27705.

llvm-svn: 269344

  Before this patch we only expanded valid __and__ profitable region. Therefor
  we did not allow the expansion to create a profitable region from a
  non-profitable one.  With this patch we will remember and expand all valid
  regions and check for profitability only at the end.

  This patch increases the number of valid SCoPs in the LLVM-TS and SPEC
  2000/2006 by 28% (from 303 to 390), including the hot loop in hmmer.

llvm-svn: 269343