Only SectionChunk can be dead-stripped. Previously,
all types of chunks implemented these functions,
but their functions were blank.

Likewise, only DefinedRegular and DefinedCOMDAT symbols
can be dead-stripped. markLive() function was implemented
for other symbol types, but they were blank.

I started thinking that the change I made in r240319 was
a mistake. I separated DefinedCOMDAT from DefinedRegular
because I thought that would make the code cleaner, but now
we want to handle them as the same type here. Maybe we
should roll it back.

This change should improve readability a bit as this removes
some dubious uses of reinterpret_cast. Previously, we
assumed that all COMDAT chunks are actually SectionChunks,
which was not very obvious.

llvm-svn: 240675

Differential Revision: http://reviews.llvm.org/D10738

llvm-svn: 240674

llvm-svn: 240673

MemIntrinsicSDNode is already a subclass of MemSDNode,
so the MemSDNode check is sufficient.

llvm-svn: 240672

llvm-svn: 240671

This previously caused miscompilations as a result of phi nodes receiving
undef incoming values from blocks dominated by such successors.

Differential Revision: http://reviews.llvm.org/D10726

llvm-svn: 240670

Integer variants are implemented as atomicrmw or cmpxchg instructions.
Atomic add for floating point (__nvvm_atom_add_gen_f()) is implemented
as a call to an overloaded @llvm.nvvm.atomic.load.add.f32.* LVVM
intrinsic.

Differential Revision: http://reviews.llvm.org/D10666

llvm-svn: 240669

Random failures on the bots.

llvm-svn: 240668

llvm-svn: 240666

llvm-svn: 240665

llvm-svn: 240664

http://reviews.llvm.org/D10309

llvm-svn: 240663

The language can not be definitively determined from the mangling, so
this new name helps clarify that fact.  This addresses the concerns raised
in http://reviews.llvm.org/rL226962.
Reviewed by: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D10723

llvm-svn: 240662

The size of the field is 16 bit, so it's inaccurate if the
number of relocations in a section is more than 65535.

llvm-svn: 240661

http://reviews.llvm.org/D10711

llvm-svn: 240660

Differential Revision: http://reviews.llvm.org/D10664

llvm-svn: 240659

llvm-svn: 240658

There were two issues:
* ISL's configure generates include/isl/stdint.h, not isl/stdint.h as
  assumed. This is also changed in the CMake build.

* Need to pass --with-int=imath to ISL's configure; the default is gmp. 

Polly's configure has been regenerated due to changing configure.ac

llvm-svn: 240657

llvm-svn: 240656

This matches gnu nm and has the advantage that there is a upper case N.

llvm-svn: 240655

Fix #pragma redefine_extname when there is a local variable of the same name. The local should not be renamed, only the externally-available declaration should be.

Patch by Andrey Bokhanko!

llvm-svn: 240653

it seems the failure happens also with clang. The main thing which triggers the failure is
architecture.

llvm-svn: 240652

On Linux malloc calls itself in some case. Change the test case to
handle this scenario.

llvm-svn: 240651

This patch adds support for the vector merge even word and vector merge odd word
instructions introduced in POWER8.

Phabricator review: http://reviews.llvm.org/D10704

llvm-svn: 240650

Check for symbols in MCValue before using them. Bail out early in case
they are null. This fixes PR23779.

Differential Revision: http://reviews.llvm.org/D10712

rdar://problem/21532830

llvm-svn: 240649

unw_getcontext() should return UNW_ESUCCESS on success.  Therefore, the
assembly for AArch64 is incorrect because "ldr x0, #0" is a PC-relative
load instead of an immediate value load.

llvm-svn: 240648

llvm-svn: 240647

llvm-svn: 240646

llvm-svn: 240645

* Have it return a iterator_range.
* Remove the global function.
* Rename to getDynamicSymbolIterators.

llvm-svn: 240644

Patch by takeshi-yoshimura!

Differential Revision: http://reviews.llvm.org/D10145

llvm-svn: 240643

We still have to support C++11 standard libraries, make_unique is a C++14
feature.

llvm-svn: 240642

No functionality change intended.

llvm-svn: 240641

Summary:
This is a utility for clients that want to insert a layer that modifies
each ObjectFile and then passes it along to the next layer.

Reviewers: lhames

Reviewed By: lhames

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10456

llvm-svn: 240640

No functional change intended.

llvm-svn: 240639

Summary:
the original bug was fixed (a rogue breakpoint messing up inferior data structures) and the tests
seems to pass now. Since android has a default SEGV handler, I have had to alter the test
expectation in this case.

Test Plan: Tests pass on android arm.

Reviewers: tberghammer

Subscribers: tberghammer, aemerson, lldb-commits

Differential Revision: http://reviews.llvm.org/D10733

llvm-svn: 240638

Summary:
Simplify emitDirectiveModuleFP() by having it just print the current information
from MipsABIFlagsSection and doing an updateABIInfo() before such calls.

This prevents us from forgetting to update the STI.FeatureBits,
because updateABIInfo() uses those to update the MipsABIFlagsSection object,
and also makes sure we use the update mechanism from MipsABIFlagsSection.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits, mpf

Differential Revision: http://reviews.llvm.org/D10642

llvm-svn: 240637

Reviewed By: hfinkel

Differential Revision: http://reviews.llvm.org/D10475

llvm-svn: 240636

the thread creation failure was fixed, but a backtracing problem remains in some situations.

llvm-svn: 240635

As pointed out by Justin Bogner (see r240520), SystemZDAGToDAGISel::Select
currently attempts to convert boolean operations into RxSBG even on some
non-integer types (in particular, vector types).  This would not work in
any case, and it happened to trigger undefined behaviour in allOnes.

This patch verifies that we have a (<= 64-bit) integer type before
attempting to perform this optimization.

llvm-svn: 240634