A linker normally has two stages: symbol resolution and "moving stuff".

In lib/Linker there is the complication of lazy linking some globals,
but it was still far more mixed than it needed to.

This splits the linker into a lower level IRMover and the linker proper.
The IRMover just takes a list of globals to move and a callback that
lets the user control what is lazy linked.

The main motivation is that now tools/gold (and soon lld) can use their
own symbol resolution to instruct IRMover what to do.

llvm-svn: 255254

llvm-svn: 255253

llvm-svn: 255252

llvm-svn: 255251

llvm-svn: 255250

llvm-svn: 255249

llvm-svn: 255248

We extend the search for redundant stores to predecessor blocks that
unconditionally lead to the block BB with the current store instruction.  That
also includes single-block loops that unconditionally lead to BB, and
if-then-else blocks where then- and else-blocks unconditionally lead to BB.

http://reviews.llvm.org/D13363
Patch by Ivan Baev <ibaev@codeaurora.org>!

llvm-svn: 255247

This patch corresponds to review:
http://reviews.llvm.org/D15286

LLVM IR frequently contains bitcast operations between floating point and
integer values of the same width. Doing this through memory operations is
quite expensive on PPC. This patch allows the use of direct register moves
between FPRs and GPRs for lowering bitcasts.

llvm-svn: 255246

Introduced DIMacro and DIMacroFile debug info metadata in the LLVM IR to support macros.

Differential Revision: http://reviews.llvm.org/D14687

llvm-svn: 255245

llvm-svn: 255244

The motivation is:
  1. consistency with clang-format, vim :sort etc.
  2. we don't want the tools to depend on the current locale to do the include
     sorting

llvm-svn: 255243

Some targets (e.g. Mips) don't have 64-bit atomics, so using atomic_uint64_t
leads to build failures. Use atomic_uintptr_t to avoid such errors.

Patch by Max Ostapenko. 

llvm-svn: 255242

Summary:
LAA uses the PredicatedScalarEvolution interface, so it can produce
forward/backward dependences having SCEVs that are AddRecExprs only after being
transformed by PredicatedScalarEvolution.

Use PredicatedScalarEvolution to get the expected expressions.

Reviewers: anemet

Subscribers: llvm-commits, sanjoy

Differential Revision: http://reviews.llvm.org/D15382

llvm-svn: 255241

These architectures already using the gold linker for the android
framework and switching to gold gives us the opportunity to enable ICF.

Safe ICF (identical code folding) reduces the size of an optimized and
striped binary by ~5%.

Differential revision: http://reviews.llvm.org/D15379

llvm-svn: 255240

Patch creates a member function that decides when to JIT all the details about an allocation.
By checking for zero pointers we can avoid the situation where we store uninitialised data from previously inspecting the allocation during creation.

llvm-svn: 255238

llvm-svn: 255237

SymbolReaper was destroying the symbol too early when it was referenced only
from an index SVal of a live ElementRegion.

In order to test certain aspects of this patch, extend the debug.ExprInspection
checker to allow testing SymbolReaper in a direct manner.

Differential Revision: http://reviews.llvm.org/D12726

llvm-svn: 255236

List all sections removed by garbage collection. This option is only effective if garbage collection has been enabled via the `--gc-sections' option.

Differential revision: http://reviews.llvm.org/D15327

llvm-svn: 255235

SystemZ needs to do its scheduling after branch relaxation, which can
only happen after block placement, and therefore the standard
PostRAScheduler point in the pass sequence is too early.

TargetMachine::targetSchedulesPostRAScheduling() is a new method that
signals on returning true that target will insert the final scheduling
pass on its own.

Reviewed by Hal Finkel

llvm-svn: 255234

If R_386_PLT32 relocation is applied against symbol that can not be preempted then it can be resolved statically.
Patch implements it for x86 target.

Differential revision: http://reviews.llvm.org/D15376

llvm-svn: 255233

[Sema] Use UnaryOperatorKind and BinaryOperatorKind in parameter lists instead of just unsigned. Removes a few explicit casts. NFC

llvm-svn: 255232

llvm-svn: 255231

Patch by Max Ostapenko.

llvm-svn: 255230

Predetermined data-shared attributes for local variables are now considered as implicit. Also, patch prohibits changin of DSA for static memebers of classes.

llvm-svn: 255229

Patch by Max Ostapenko.

Differential Revision: http://reviews.llvm.org/D15080

llvm-svn: 255228

This commit broke apple's internal bot.

llvm-svn: 255227

 - This simplifies the CallSite class, arg_begin / arg_end are now
   simple wrapper getters.

 - In several places, we were creating CallSite instances solely to call
   arg_begin and arg_end.  With this change, that's no longer required.

llvm-svn: 255226

The complete dtor is only emitted when there is a virtual destructor.  The test
itself was incorrect, so the issue in the code was not noticed.

llvm-svn: 255225

llvm-svn: 255224

Patch turns on OpenMP support in clang by default after fixing OpenMP buildbots.
Differential Revision: http://reviews.llvm.org/D13803

llvm-svn: 255223

Patch turns on OpenMP support in clang by default after fixing OpenMP buildbots.
Differential Revision: http://reviews.llvm.org/D13802

llvm-svn: 255222

https://llvm.org/bugs/show_bug.cgi?id=24694
http://wg21.link/cwg1591

Teach DeduceFromInitializerList in SemaTemplateDeduction.cpp to deduce against array (constant and dependent sized) parameters (really, reference to arrays since they don't decay to pointers), by checking if the template parameter is either one of those kinds of arrays, and if so, deducing each initializer list element against the element type, and then deducing the array bound if needed.

In brief, this patch enables the following code:
template<class T, int N> int *f(T (&&)[N]);
int *ip = f({1, 2, 3});

llvm-svn: 255221

ISD::FCOPYSIGN permits its operands to have differing types, and DAGCombiner
uses this. Add some def : Pat rules to expand this out into an explicit
conversion and a normal copysign operation.

llvm-svn: 255220

It is lowered to a libcall for now, but this is expected to change in the future.

llvm-svn: 255219

All problems described in http://llvm.org/PR25636 are implemented except for return value of the 'put' property. This patch fixes this problem with the indexed properties
Differential Revision: http://reviews.llvm.org/D15174

llvm-svn: 255218

llvm-svn: 255205

Summary:
This allows us to remove the END_OF_TEXT_LABEL hack we had been using
and simplifies the fixups used to compute the address of constant
arrays.

Reviewers: arsenm

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15257

llvm-svn: 255204

Summary: The 's' constraint represents sgprs and the 'v' constraint represents vgprs.

Reviewers: arsenm, echristo

Subscribers: arsenm, llvm-commits

Differential Revision: http://reviews.llvm.org/D15342

llvm-svn: 255203

llvm-svn: 255202