This patch allows a user to enable Hwloc on windows. There are three main
changes in here:
1.kmp.h - Move definitions/declarations out of KMP_OS_WINDOWS guard (our windows
          implementation of affinity) because they need to be defined when
          KMP_USE_HWLOC is on as well.
2.teach __kmp_set_system_affinity, __kmp_get_system_affinity,
        __kmp_get_proc_group, and __kmp_affinity_bind_thread how to use hwloc.
3.teach CMake how to include hwloc when building Windows

Another minor change in here is to make sure that anything under KMP_USE_HWLOC
is also guarded by KMP_AFFINITY_SUPPORTED as well. This is to prevent Mac
builds from requiring anything from Hwloc.

Differential Revision: http://reviews.llvm.org/D21441

llvm-svn: 272951

With single thread using __kmpc_omp_wait_deps segfaults in OpenMP runtime.
Offloading with depend also encounters this problem when we generate
kmpc_omp_wait_deps instead of kmpc_omp_task_with_deps.

Patch by Alex Duran

Differential Revision: http://reviews.llvm.org/D21384

llvm-svn: 272949

[libFuzzer] use the new chainable malloc hooks instead of the old un-chainable ones, use atomic for malloc/free counters instead of a thread local counter in the main thread. This should make on-the-spot leak detection in libFuzzer more reliable

llvm-svn: 272948

Added -no-canonical-prefixes to make cc1 binary name more predictable.
Added appropriate REQUIRES keywords.

llvm-svn: 272947

Cleanup: fixed missing memory cleanup in couple of corner cases. Fixes possible
memory leak in some corner cases

Patch by Andrey Churbanov

Differential Revision: http://reviews.llvm.org/D21355

llvm-svn: 272946

Improved performance of ittnotify calls by request from ittnotify
owner: calls to __itt_string_handle_create made unique (it was
called multiple times).

Patch by Andrey Churbanov

Differential Revision: http://reviews.llvm.org/D21353

llvm-svn: 272945

This won't always be enough info to call a virtual method from the
debugger, but it's a start.

llvm-svn: 272944

llvm-svn: 272943

They are equivalent in C (and in C++ in this case).

llvm-svn: 272942

This test checks that the string 'bar' (no quotes) doesn't exist in the
output after running opt.  But opt embeds the absolute path to the
filename, and on my machine, the filename contains the string 'jlebar',
causing the test to fail.

This patch changes the test to look for the string '"bar"' instead.

llvm-svn: 272941

Noticed during review of the recent FileCheck change.

llvm-svn: 272940

llvm-svn: 272939

Summary:
... into getFrameIndexReferencePreferSP.  This change folds the
fail-then-retry logic into getFrameIndexReferencePreferSP.

There is a non-functional but behaviorial change in WinException --
earlier if `getFrameIndexReferenceFromSP` failed we'd trip an assert,
but now we'll silently use the (wrong) offset from the base pointer.  I
could not write the assert I'd like to write ("FrameReg ==
StackRegister", like I've done in X86FrameLowering) since there is no
easy way to get to the stack register from WinException (happy to be
proven wrong here).  One solution to this is to add a `bool
OnlyStackPointer` parameter to `getFrameIndexReferenceFromSP` that
asserts if it could not satisfy its promise of returning an offset from
a stack pointer, but that seems overkill.

Reviewers: rnk

Subscribers: sanjoy, mcrosier, llvm-commits

Differential Revision: http://reviews.llvm.org/D21427

llvm-svn: 272938

Deprecate KMP_PLACE_THREADS and rename it to KMP_HW_SUBSET due to confusion
about its purpose and function among users.  KMP_HW_SUBSET is an environment
variable which allows users to easily pick a subset of the hardware topology to
use.  e.g., KMP_HW_SUBSET=30c,2t means use 30 cores, 2 threads per core.

Patch by Andrey Churbanov

Differential Revision: http://reviews.llvm.org/D21340

llvm-svn: 272937

llvm-svn: 272936

Added argv array check/allocation for parallel directly nested inside the teams
construct, as new coming Fortran codegen passes parameters directly into
kmpc_fork_call missing same parameters in kmpc_fork_teams (earlier codegen
passed to parallel the subset of parameter passed to teams, and thus
no check/allocation needed).

Patch by Andrey Churbanov

Differential Revision: http://reviews.llvm.org/D21336

llvm-svn: 272935

Patch updates the version script parser to parse versioned files.
In a simple way, just adding them to VersionScriptGlobals list.

Differential revision: http://reviews.llvm.org/D21439

llvm-svn: 272934

Sibling patch to r272932:
http://reviews.llvm.org/rL272932

llvm-svn: 272933

This will (hopefully very temporarily) break clang.
The clang side of this should be the next commit.

llvm-svn: 272932

Re-apply r272900 - [OpenMP] Cast captures by copy when passed to fork call so that they are compatible to what the runtime library expects.

An issue in one of the regression tests was fixed for 32-bit hosts.

llvm-svn: 272931

Differential Revision: http://reviews.llvm.org/D21393

llvm-svn: 272930

There was a regression introduced during type stream merging when
visiting a field list record.  This has been fixed in this patch.

llvm-svn: 272929

llvm-svn: 272928

This reverts commit fb0dd311e1ad945827b8ffd5354f4810e2be1579.

This breaks some llvm-readobj tests.

llvm-svn: 272927

This allows better catching of compiler errors since we can use
the override keyword to verify that methods are actually
overridden.

Also in this patch I've changed from storing a boolean Error
code everywhere to returning an llvm::Error, to propagate richer
error information up the call stack.

Reviewed By: ruiu, rnk
Differential Revision: http://reviews.llvm.org/D21410

llvm-svn: 272926

Daniel Berlin expressed some real concerns about the port and proposed
and alternative approach. I'll revert this for now while working on a
new patch, which I hope to put up for review shortly. Sorry for the churn.

llvm-svn: 272925

llvm-svn: 272924

llvm-svn: 272923

llvm-svn: 272922

llvm-svn: 272921

When calculating a square root using Newton-Raphson with two constants,
a naive implementation is to use five multiplications (four muls to calculate
reciprocal square root and another one to calculate the square root itself).
However, after some reassociation and CSE the same result can be obtained
with only four multiplications. Unfortunately, there's no reliable way to do
such a reassociation in the back-end. So, the patch modifies NR code itself
so that it directly builds optimal code for SQRT and doesn't rely on any
further reassociation.

Patch by Nikolai Bozhenov!

Differential Revision: http://reviews.llvm.org/D21127

llvm-svn: 272920

Differential Revision: http://reviews.llvm.org/D21362

llvm-svn: 272919

This is currently only performed in the Vectorizer.  I will change this
as symbolic stride collection is moved to LAA.

This test will track when the actual functional change occurs.

llvm-svn: 272918

llvm-svn: 272917

This patch allows LLDB for AArch64 to watch all bytes, words or double words individually on non 8-byte alligned addresses.

This patch also adds tests to verify this functionality.

Differential revision: http://reviews.llvm.org/D21280

llvm-svn: 272916

llvm-svn: 272915

llvm-svn: 272914

PltZero (or PLT[0]) was an appropriate name for the little code
we have at beginning of the PLT section when we only supported x86
since the code for x86 just fits in the first PLT slot.

It's not the case anymore. The code for ARM64 occupies first two
slots, so PltZero spans PLT[0] and PLT[1], for example.
This patch renames it to avoid confusion.

llvm-svn: 272913

It was causing failures in Profile-i386 and Profile-x86_64 tests.

llvm-svn: 272912

This fixes IMAGE_REL_I386_DIR32, IMAGE_REL_I386_DIR32NB,
IMAGE_REL_I386_SECREL, and IMAGE_REL_I386_REL32 relocations.

Based on patch by Jon Turney <jon.turney@dronecode.org.uk>

llvm-svn: 272911