platform/upstream/llvm.git
8 years agoReplace an obsolete company name.
Paul Robinson [Mon, 15 Aug 2016 18:45:52 +0000 (18:45 +0000)]
Replace an obsolete company name.

llvm-svn: 278710

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Mon, 15 Aug 2016 18:45:10 +0000 (18:45 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278709

8 years ago[InstCombine] add test for missing vector icmp fold
Sanjay Patel [Mon, 15 Aug 2016 18:39:54 +0000 (18:39 +0000)]
[InstCombine] add test for missing vector icmp fold

llvm-svn: 278708

8 years agominimize test
Sanjay Patel [Mon, 15 Aug 2016 18:35:44 +0000 (18:35 +0000)]
minimize test

llvm-svn: 278707

8 years ago[ubsan] Initialize Android logging.
Evgeniy Stepanov [Mon, 15 Aug 2016 18:35:40 +0000 (18:35 +0000)]
[ubsan] Initialize Android logging.

This adds standalone ubsan output to "adb logcat", the same as ASan does.

llvm-svn: 278706

8 years agoremove unnecessary IR comments about uses
Sanjay Patel [Mon, 15 Aug 2016 18:32:50 +0000 (18:32 +0000)]
remove unnecessary IR comments about uses

llvm-svn: 278705

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Mon, 15 Aug 2016 18:26:56 +0000 (18:26 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278704

8 years agoLocal variables whose address is taken and passed on to a call are described
Wolfgang Pieb [Mon, 15 Aug 2016 18:18:26 +0000 (18:18 +0000)]
Local variables whose address is taken and passed on to a call are described
in debug info using their stack slots instead of as an indirection of param reg + 0
offset. This is done by detecting FrameIndexSDNodes in SelectionDAG and generating
FrameIndexDbgValues for them. This ultimately generates DBG_VALUEs with stack
location operands.

Differential Revision: http://reviews.llvm.org/D23283

llvm-svn: 278703

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Mon, 15 Aug 2016 17:55:39 +0000 (17:55 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278689

8 years ago[libFuzzer] add InsertRepeatedBytes and EraseBytes.
Kostya Serebryany [Mon, 15 Aug 2016 17:48:28 +0000 (17:48 +0000)]
[libFuzzer] add InsertRepeatedBytes and EraseBytes.

New mutation: InsertRepeatedBytes.
Updated mutation: EraseByte => EraseBytes.

This helps https://github.com/google/sanitizers/issues/710
where libFuzzer was not able to find a known bug.
Now it finds it in minutes.

Hopefully, the change is general enough to help other targets.

llvm-svn: 278687

8 years ago[Documentation] Improve checks groups descriptions in clang-tidy/index.rst
Eugene Zelenko [Mon, 15 Aug 2016 17:44:29 +0000 (17:44 +0000)]
[Documentation] Improve checks groups descriptions in clang-tidy/index.rst

Use table to avoid tautology. List all existing checks groups. Use alphabetical order.

Differential revision: https://reviews.llvm.org/D23471

llvm-svn: 278686

8 years ago[InstCombine] auto-generate exact checks
Sanjay Patel [Mon, 15 Aug 2016 17:19:07 +0000 (17:19 +0000)]
[InstCombine] auto-generate exact checks

Note that several of these tests belong in InstSimplify rather than
InstCombine because they return existing operands or constants.

llvm-svn: 278684

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Mon, 15 Aug 2016 17:10:35 +0000 (17:10 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278683

8 years agoAMDGPU: Update AMDGPURuntimeMetadata.h for enums of address space qualifiers
Yaxun Liu [Mon, 15 Aug 2016 16:54:25 +0000 (16:54 +0000)]
AMDGPU: Update AMDGPURuntimeMetadata.h for enums of address space qualifiers

llvm-svn: 278682

8 years agoDisable invariant load hoisting temporarily
Tobias Grosser [Mon, 15 Aug 2016 16:43:36 +0000 (16:43 +0000)]
Disable invariant load hoisting temporarily

With invariant load hoisting enabled the LLVM buildbots currently show some
miscompiles, which are possibly caused by invariant load hosting itself.
Confirming and fixing this requires a more in-depth analysis. To meanwhile get
back green buildbots that allow us to observe other regressions, we disable
invariant code hoisting temporarily. The relevant bug is tracked at:

http://llvm.org/PR28985

llvm-svn: 278681

8 years ago[test] Force invariant load hoisting one last time
Tobias Grosser [Mon, 15 Aug 2016 16:43:33 +0000 (16:43 +0000)]
[test] Force invariant load hoisting one last time

Without invariant load hoisting an (unrelated) bug is exposed in this test
case: http://llvm.org/PR28984

llvm-svn: 278680

8 years agoAMDGPU: Don't fold subregister extracts into tied operands
Matt Arsenault [Mon, 15 Aug 2016 16:18:36 +0000 (16:18 +0000)]
AMDGPU: Don't fold subregister extracts into tied operands

llvm-svn: 278676

8 years ago[tests] Force invariant load hoisting for test cases that need it -- III
Tobias Grosser [Mon, 15 Aug 2016 15:56:24 +0000 (15:56 +0000)]
[tests] Force invariant load hoisting for test cases that need it -- III

llvm-svn: 278673

8 years agoRevert "[SimplifyCFG] Rewrite SinkThenElseCodeToEnd"
Reid Kleckner [Mon, 15 Aug 2016 15:42:31 +0000 (15:42 +0000)]
Revert "[SimplifyCFG] Rewrite SinkThenElseCodeToEnd"

This reverts commit r278660.

It causes downstream assertion failure in InstCombine on shuffle
instructions. Comes up in __mm_swizzle_epi32.

llvm-svn: 278672

8 years ago[mips] XFAIL mips64el tests that fail on clang-cmake-mipsel
Daniel Sanders [Mon, 15 Aug 2016 15:14:08 +0000 (15:14 +0000)]
[mips] XFAIL mips64el tests that fail on clang-cmake-mipsel

These tests were recently enabled and have never worked on this builder.

Three tests were sensitive to line number changes:
  test/msan/Linux/obstack.cc
  test/msan/chained_origin.cc
  test/msan/chained_origin_memcpy.cc
and this sensitivity will be addressed in a follow-up patch. Of these,
obstack.cc's sensitivity to line numbers is unexplained since it already uses
[[@LINE]].

llvm-svn: 278671

8 years agoFix expression evaluation with operator new
Pavel Labath [Mon, 15 Aug 2016 14:32:32 +0000 (14:32 +0000)]
Fix expression evaluation with operator new

Summary:
referencing a user-defined operator new was triggering an assert in clang because we were
registering the function name as string "operator new", instead of using the special operator
enum, which clang has for this purpose. Method operators already had code to handle this, and now
I extend this to cover free standing operator functions as well. Test included.

Reviewers: spyffe

Subscribers: sivachandra, paulherman, lldb-commits

Differential Revision: http://reviews.llvm.org/D17856

llvm-svn: 278670

8 years ago[tests] Force invariant load hoisting for test cases that need it II
Tobias Grosser [Mon, 15 Aug 2016 13:58:16 +0000 (13:58 +0000)]
[tests] Force invariant load hoisting for test cases that need it II

llvm-svn: 278669

8 years ago[test] Correct spelling in test case
Tobias Grosser [Mon, 15 Aug 2016 13:58:04 +0000 (13:58 +0000)]
[test] Correct spelling in test case

and explicitly enable invariant load hoisting for this test case.

llvm-svn: 278668

8 years ago[tests] Force invariant load hoisting for test cases that need it
Tobias Grosser [Mon, 15 Aug 2016 13:27:49 +0000 (13:27 +0000)]
[tests] Force invariant load hoisting for test cases that need it

This will make it easier to switch the default of Polly's invariant load
hoisting strategy and also makes it very clear that these test cases
indeed require invariant code hoisting to work.

llvm-svn: 278667

8 years agoPerform replacement of access relations and creation of new arrays according to the...
Roman Gareev [Mon, 15 Aug 2016 12:22:54 +0000 (12:22 +0000)]
Perform replacement of access relations and creation of new arrays according to the packing transformation

This is the third patch to apply the BLIS matmul optimization pattern on matmul
kernels (http://www.cs.utexas.edu/users/flame/pubs/TOMS-BLIS-Analytical.pdf).
BLIS implements gemm as three nested loops around a macro-kernel, plus two
packing routines. The macro-kernel is implemented in terms of two additional
loops around a micro-kernel. The micro-kernel is a loop around a rank-1
(i.e., outer product) update. In this change we perform replacement of
the access relations and create empty arrays, which are steps to implement
the packing transformation. In subsequent changes we will implement copying
to created arrays.

Reviewed-by: Tobias Grosser <tobias@grosser.es>
Differential Revision: http://reviews.llvm.org/D22187

llvm-svn: 278666

8 years ago[AMDGPU] fix failure on printing of non-existing instruction operands.
Valery Pykhtin [Mon, 15 Aug 2016 10:56:48 +0000 (10:56 +0000)]
[AMDGPU] fix failure on printing of non-existing instruction operands.

Differential revision: https://reviews.llvm.org/D23323

llvm-svn: 278665

8 years agoFix a race in Broadcaster/Listener interaction
Pavel Labath [Mon, 15 Aug 2016 09:53:08 +0000 (09:53 +0000)]
Fix a race in Broadcaster/Listener interaction

Summary:
The following problem was occuring:
- broadcaster B had two listeners: L1 and L2 (thread T1)
- (T1) B has started to broadcast an event, it has locked a shared_ptr to L1 (in
  ListenerIterator())
- on another thread T2 the penultimate reference to L1 was destroyed (the transient object in B is
  now the last reference)
- (T2) the last reference to L2 was destroyed as well
- (T1) B has finished broadcasting the event to L1 and destroyed the last shared_ptr
- (T1) this triggered the destructor, which called into B->RemoveListener()
- (T1) all pointers in the m_listeners list were now stale, so RemoveListener emptied the list
- (T1) Eventually control returned to the ListenerIterator() for doing broadcasting, which was
  still in the middle of iterating through the list
- (T1) Only now, it was holding onto a dangling iterator. BOOM.

I fix this issue by making sure nothing can interfere with the
iterate-and-remove-expired-pointers loop, by moving this logic into a single function, which
first locks (or clears) the whole list and then returns the list of valid and locked Listeners
for further processing. Instead of std::list I use an llvm::SmallVector which should hopefully
offset the fact that we create a copy of the list for the common case where we have only a few
listeners (no heap allocations).

A slight difference in behaviour is that now RemoveListener does not remove an element from the
list -- it only sets it's mask to 0, which means it will be removed during the next iteration of
GetListeners(). This is purely an implementation detail and it should not be externally
noticable.

I was not able to reproduce this bug reliably without inserting sleep statements into the code,
so I do not add a test for it. Instead, I add some unit tests for the functions that I do modify.

Reviewers: clayborg, jingham

Subscribers: tberghammer, lldb-commits

Differential Revision: https://reviews.llvm.org/D23406

llvm-svn: 278664

8 years ago[ELF] Linkerscript: fix bug in assignOffsets (check Sym for non-null)
Eugene Leviant [Mon, 15 Aug 2016 09:19:51 +0000 (09:19 +0000)]
[ELF] Linkerscript: fix bug in assignOffsets (check Sym for non-null)

llvm-svn: 278663

8 years agoFixup r278524 for non-apple targets
Pavel Labath [Mon, 15 Aug 2016 09:17:13 +0000 (09:17 +0000)]
Fixup r278524 for non-apple targets

The commit started passing a nullptr port into GDBRemoteCommunication::StartDebugserverProcess.
The function was mostly handling the null value correctly, but it one case it did not check it's
value before assigning to it. Fix that.

llvm-svn: 278662

8 years agoMachineLoop: add methods findLoopControlBlock and findLoopPreheader
Sjoerd Meijer [Mon, 15 Aug 2016 08:22:42 +0000 (08:22 +0000)]
MachineLoop: add methods findLoopControlBlock and findLoopPreheader

This adds two new utility functions findLoopControlBlock and findLoopPreheader
to MachineLoop and MachineLoopInfo. These functions are refactored and taken
from the Hexagon target as they are target independent; thus this is intendend to
be a non-functional change.

Differential Revision: https://reviews.llvm.org/D22959

llvm-svn: 278661

8 years ago[SimplifyCFG] Rewrite SinkThenElseCodeToEnd
James Molloy [Mon, 15 Aug 2016 08:04:56 +0000 (08:04 +0000)]
[SimplifyCFG] Rewrite SinkThenElseCodeToEnd

The new version has several advantages:
  1) IMSHO it's more readable and neater
  2) It handles loads and stores properly
  3) It can handle any number of incoming blocks rather than just two. I'll be taking advantage of this in a followup patch.

With this change we can now finally sink load-modify-store idioms such as:

    if (a)
      return *b += 3;
    else
      return *b += 4;

    =>

    %z = load i32, i32* %y
    %.sink = select i1 %a, i32 5, i32 7
    %b = add i32 %z, %.sink
    store i32 %b, i32* %y
    ret i32 %b

When this works for switches it'll be even more powerful.

llvm-svn: 278660

8 years ago[Thumb] Validate branch target for CBZ/CBNZ instructions.
Prakhar Bahuguna [Mon, 15 Aug 2016 07:57:44 +0000 (07:57 +0000)]
[Thumb] Validate branch target for CBZ/CBNZ instructions.

Summary:
The assembler currently does not check the branch target for CBZ/CBNZ
instructions, which only permit branching forwards with a positive offset. This
adds validation for the branch target to ensure negative PC-relative offsets are
not encoded into the instruction, whether specified as a literal or as an
assembler symbol.

Reviewers: rengolin, t.p.northover

Subscribers: llvm-commits, rengolin

Differential Revision: https://reviews.llvm.org/D23312

llvm-svn: 278659

8 years ago[LSR] Don't try and create post-inc expressions on non-rotated loops
James Molloy [Mon, 15 Aug 2016 07:53:03 +0000 (07:53 +0000)]
[LSR] Don't try and create post-inc expressions on non-rotated loops

If a loop is not rotated (for example when optimizing for size), the latch is not the backedge. If we promote an expression to post-inc form, we not only increase register pressure and add a COPY for that IV expression but for all IVs!

Motivating testcase:

    void f(float *a, float *b, float *c, int n) {
      while (n-- > 0)
        *c++ = *a++ + *b++;
    }

It's imperative that the pointer increments be located in the latch block and not the header block; if not, we cannot use post-increment loads and stores and we have to keep both the post-inc and pre-inc values around until the end of the latch which bloats register usage.

llvm-svn: 278658

8 years ago[ELF] Do not add start and end symbols in case they are already defined
Eugene Leviant [Mon, 15 Aug 2016 07:24:20 +0000 (07:24 +0000)]
[ELF] Do not add start and end symbols in case they are already defined

llvm-svn: 278657

8 years ago[CodeGen] Ignore unnamed bitfields before handling vector fields
David Majnemer [Mon, 15 Aug 2016 07:20:40 +0000 (07:20 +0000)]
[CodeGen] Ignore unnamed bitfields before handling vector fields

We processed unnamed bitfields after our logic for non-vector field
elements in records larger than 128 bits.  The vector logic would
determine that the bit-field disqualifies the record from occupying a
register despite the unnamed bit-field not participating in the record
size nor its alignment.

N.B. This behavior matches GCC and ICC.

llvm-svn: 278656

8 years ago[CodeGen] Correctly implement the AVX512 psABI rules
David Majnemer [Mon, 15 Aug 2016 06:39:18 +0000 (06:39 +0000)]
[CodeGen] Correctly implement the AVX512 psABI rules

An __m512 vector type wrapped in a structure should be passed in a
vector register.

Our prior implementation was based on a draft version of the psABI.

This fixes PR28975.

N.B. The update to the ABI was made here:
https://github.com/hjl-tools/x86-psABI/commit/30f9c9

llvm-svn: 278655

8 years ago[X86] PADDUSB/W instructions should be commutable.
Craig Topper [Mon, 15 Aug 2016 06:31:57 +0000 (06:31 +0000)]
[X86] PADDUSB/W instructions should be commutable.

llvm-svn: 278654

8 years ago[X86] Mark some of the X86 SDNodes as commutative.
Craig Topper [Mon, 15 Aug 2016 04:47:30 +0000 (04:47 +0000)]
[X86] Mark some of the X86 SDNodes as commutative.

llvm-svn: 278653

8 years ago[X86] X86ISD::FANDN is not commutative or associative.
Craig Topper [Mon, 15 Aug 2016 04:47:28 +0000 (04:47 +0000)]
[X86] X86ISD::FANDN is not commutative or associative.

llvm-svn: 278652

8 years ago[ScopedNoAliasAA] collectMDInDomain should be a free function
David Majnemer [Mon, 15 Aug 2016 03:56:06 +0000 (03:56 +0000)]
[ScopedNoAliasAA] collectMDInDomain should be a free function

collectMDInDomain doesn't use any class members, making it a free
function is not a functional change.

llvm-svn: 278651

8 years agocxx_status: update features implemented in clang 3.9 from "svn" to "Clang 3.9" now...
Richard Smith [Mon, 15 Aug 2016 02:47:23 +0000 (02:47 +0000)]
cxx_status: update features implemented in clang 3.9 from "svn" to "Clang 3.9" now that svn trunk is 4.0.

llvm-svn: 278650

8 years agocxx_status: mark decomposition declarations as "partial": the implementation is
Richard Smith [Mon, 15 Aug 2016 02:37:43 +0000 (02:37 +0000)]
cxx_status: mark decomposition declarations as "partial": the implementation is
essentially complete, other than parts where design questions have been raised
(lambda capture, decomposition of arrays by copy).

llvm-svn: 278649

8 years agoDisable lambda-capture of decomposition declaration bindings for now, until CWG
Richard Smith [Mon, 15 Aug 2016 02:34:23 +0000 (02:34 +0000)]
Disable lambda-capture of decomposition declaration bindings for now, until CWG
agrees on how they're supposed to work.

llvm-svn: 278648

8 years agoAdd a triple to this test to make buildbots happier.
Richard Smith [Mon, 15 Aug 2016 02:24:00 +0000 (02:24 +0000)]
Add a triple to this test to make buildbots happier.

llvm-svn: 278647

8 years ago[ScopedNoAliasAA] Only collect noalias nodes if we have alias.scope nodes
David Majnemer [Mon, 15 Aug 2016 02:23:50 +0000 (02:23 +0000)]
[ScopedNoAliasAA] Only collect noalias nodes if we have alias.scope nodes

No functional change is intended.

llvm-svn: 278646

8 years ago[ScopedNoAliasAA] Replace !ScopeNodes.size() with ScopeNodes.empty()
David Majnemer [Mon, 15 Aug 2016 02:23:48 +0000 (02:23 +0000)]
[ScopedNoAliasAA] Replace !ScopeNodes.size() with ScopeNodes.empty()

No functional change is intended.

llvm-svn: 278645

8 years agoRevert "[ScopedNoAliasAA] Remove an unneccesary set"
David Majnemer [Mon, 15 Aug 2016 02:23:46 +0000 (02:23 +0000)]
Revert "[ScopedNoAliasAA] Remove an unneccesary set"

This reverts commit r278641.  I'm not sure why but this has upset the
multistage builders...

llvm-svn: 278644

8 years agoCheck in SFINAE base class for use in optional/variant
Eric Fiselier [Mon, 15 Aug 2016 01:51:54 +0000 (01:51 +0000)]
Check in SFINAE base class for use in optional/variant

llvm-svn: 278643

8 years agoP0217R3: code generation support for decomposition declarations.
Richard Smith [Mon, 15 Aug 2016 01:33:41 +0000 (01:33 +0000)]
P0217R3: code generation support for decomposition declarations.

llvm-svn: 278642

8 years ago[ScopedNoAliasAA] Remove an unneccesary set
David Majnemer [Mon, 15 Aug 2016 00:13:04 +0000 (00:13 +0000)]
[ScopedNoAliasAA] Remove an unneccesary set

We are trying to prove that one group of operands is a subset of
another.  We did this by populating two Sets and determining that every
element within one was inside the other.

However, this is unnecessary.  We can simply construct a single set and
test if each operand is within it.

llvm-svn: 278641

8 years agoExplicitly generate a reference variable to hold the initializer for a
Richard Smith [Sun, 14 Aug 2016 23:15:52 +0000 (23:15 +0000)]
Explicitly generate a reference variable to hold the initializer for a
tuple-like decomposition declaration. This significantly simplifies the
semantics of BindingDecls for AST consumers (they can now always be evalated
at the point of use).

llvm-svn: 278640

8 years ago[InstCombine] add test for missing vector icmp fold
Sanjay Patel [Sun, 14 Aug 2016 22:56:46 +0000 (22:56 +0000)]
[InstCombine] add test for missing vector icmp fold

llvm-svn: 278639

8 years agoAdd private option to change build dialect from C++11
Eric Fiselier [Sun, 14 Aug 2016 22:51:54 +0000 (22:51 +0000)]
Add private option to change build dialect from C++11

Although libc++ only requires C++11 to build, there are other
reasons to turn on a newer dialect in the build. For example
IDE's may not highlight any C++14/C++17 in the headers when
configured for C++11. This patch add's a private option for
changing this.

llvm-svn: 278638

8 years ago[InstCombine] add tests for vector icmp folds
Sanjay Patel [Sun, 14 Aug 2016 22:44:10 +0000 (22:44 +0000)]
[InstCombine] add tests for vector icmp folds

llvm-svn: 278637

8 years ago[InstCombine] add test for potentially missing vector icmp fold
Sanjay Patel [Sun, 14 Aug 2016 22:30:07 +0000 (22:30 +0000)]
[InstCombine] add test for potentially missing vector icmp fold

llvm-svn: 278636

8 years ago[InstCombine] add test for missing vector icmp fold
Sanjay Patel [Sun, 14 Aug 2016 22:29:27 +0000 (22:29 +0000)]
[InstCombine] add test for missing vector icmp fold

llvm-svn: 278635

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Sun, 14 Aug 2016 22:28:50 +0000 (22:28 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278634

8 years ago[InstCombine] remove unnecessary function attributes from tests
Sanjay Patel [Sun, 14 Aug 2016 21:48:21 +0000 (21:48 +0000)]
[InstCombine] remove unnecessary function attributes from tests

llvm-svn: 278633

8 years ago[InstCombine] add tests for missing vector icmp folds
Sanjay Patel [Sun, 14 Aug 2016 21:36:22 +0000 (21:36 +0000)]
[InstCombine] add tests for missing vector icmp folds

llvm-svn: 278632

8 years ago[InstCombine] add test for missing vector icmp fold
Sanjay Patel [Sun, 14 Aug 2016 21:05:08 +0000 (21:05 +0000)]
[InstCombine] add test for missing vector icmp fold

llvm-svn: 278631

8 years ago[InstCombine] add test for missing vector icmp fold
Sanjay Patel [Sun, 14 Aug 2016 20:39:42 +0000 (20:39 +0000)]
[InstCombine] add test for missing vector icmp fold

llvm-svn: 278630

8 years ago[AVX-512] Mark VPMADDWD as commutable to match SSE/AVX version.
Craig Topper [Sun, 14 Aug 2016 17:57:22 +0000 (17:57 +0000)]
[AVX-512] Mark VPMADDWD as commutable to match SSE/AVX version.

llvm-svn: 278629

8 years ago[AVX-512] Add masked commutable floating point max/min instructions to folding tables.
Craig Topper [Sun, 14 Aug 2016 17:57:19 +0000 (17:57 +0000)]
[AVX-512] Add masked commutable floating point max/min instructions to folding tables.

llvm-svn: 278628

8 years ago[AVX-512] Add masked logical operations to memory folding tables.
Craig Topper [Sun, 14 Aug 2016 17:57:16 +0000 (17:57 +0000)]
[AVX-512] Add masked logical operations to memory folding tables.

llvm-svn: 278627

8 years ago[AVX512] Fix VFPCLASSSD/VFPCLASSSS intrinsic lowering. The i1 result should be zero...
Igor Breger [Sun, 14 Aug 2016 13:58:57 +0000 (13:58 +0000)]
[AVX512] Fix VFPCLASSSD/VFPCLASSSS intrinsic lowering. The i1 result should be zero extended according to SPEC.

Differential Revision: http://reviews.llvm.org/D23489

llvm-svn: 278626

8 years agoelf-core: set powerpc vector byte order correctly
Ed Maste [Sun, 14 Aug 2016 11:30:11 +0000 (11:30 +0000)]
elf-core: set powerpc vector byte order correctly

It was being set to the fp reg set's byte order due to an apparent
copy-and-pasteo.

llvm-svn: 278625

8 years agoautogenerate checks
Igor Breger [Sun, 14 Aug 2016 09:34:39 +0000 (09:34 +0000)]
autogenerate checks

llvm-svn: 278624

8 years ago[AVX512] Fix insertelement i1 lowering.
Igor Breger [Sun, 14 Aug 2016 05:25:07 +0000 (05:25 +0000)]
[AVX512] Fix insertelement i1 lowering.
1. Use shuffle to insert element i1 into vector. The previous implementation was incorrect ( dest_bit OR src_bit , it doesn't clear the bit if src_bit=0 )
2. Improve shuffle i1 vector, use CVT2MASK if supported instead TRUNCATE.

Differential Revision: http://reviews.llvm.org/D23347

llvm-svn: 278623

8 years agoRevert "gold: add a cast to appease std::max NFC"
Saleem Abdulrasool [Sun, 14 Aug 2016 05:07:20 +0000 (05:07 +0000)]
Revert "gold: add a cast to appease std::max NFC"

This was fixed differently by Teresa and this should no longer be needed.

llvm-svn: 278622

8 years agoRevert "CodeGen: If Convert blocks that would form a diamond when tail-merged."
Diana Picus [Sun, 14 Aug 2016 02:10:18 +0000 (02:10 +0000)]
Revert "CodeGen: If Convert blocks that would form a diamond when tail-merged."

This reverts commit r278287.

This commit broke the clang-cmake-thumbv7-a15-full-sh bot.
See https://llvm.org/bugs/show_bug.cgi?id=28949

llvm-svn: 278621

8 years agoRevert "Codegen: Don't tail-duplicate blocks with un-analyzable fallthrough."
Diana Picus [Sun, 14 Aug 2016 02:10:12 +0000 (02:10 +0000)]
Revert "Codegen: Don't tail-duplicate blocks with un-analyzable fallthrough."

This reverts commit r278288.

r278287 broke the clang-cmake-thumbv7-a15-full-sh bot.
Revert this so we can get to r278287.

llvm-svn: 278620

8 years ago[IRCE] Change variable grouping; NFC
Sanjoy Das [Sun, 14 Aug 2016 01:04:50 +0000 (01:04 +0000)]
[IRCE] Change variable grouping; NFC

llvm-svn: 278619

8 years ago[IRCE] Create llvm::Loop instances for cloned out loops
Sanjoy Das [Sun, 14 Aug 2016 01:04:46 +0000 (01:04 +0000)]
[IRCE] Create llvm::Loop instances for cloned out loops

llvm-svn: 278618

8 years ago[IRCE] Don't iterate on loops that were cloned out
Sanjoy Das [Sun, 14 Aug 2016 01:04:36 +0000 (01:04 +0000)]
[IRCE] Don't iterate on loops that were cloned out

IRCE has the ability to further version pre-loops and post-loops that it
created, but this isn't useful at all.  This change teaches IRCE to
leave behind some metadata in the loops it creates (by cloning the main
loop) so that these new loops are not re-processed by IRCE.

Today this bug is hidden by another bug -- IRCE does not update LoopInfo
properly so the loop pass manager does not re-invoke IRCE on the loops
it split out.  However, once the latter is fixed the bug addressed in
this change causes IRCE to infinite-loop in some cases (e.g. it splits
out a pre-loop, a pre-pre-loop from that, a pre-pre-pre-loop from that
and so on).

llvm-svn: 278617

8 years ago[IRCE] Add better DEBUG diagnostic; NFC
Sanjoy Das [Sun, 14 Aug 2016 01:04:31 +0000 (01:04 +0000)]
[IRCE] Add better DEBUG diagnostic; NFC

NFC meaning IRCE should not _do_ anything different, but
-debug-only=irce will be a little friendlier.

llvm-svn: 278616

8 years agoFix bitcode auto-upgrade when using bitcode lazy loading
Mehdi Amini [Sun, 14 Aug 2016 00:01:27 +0000 (00:01 +0000)]
Fix bitcode auto-upgrade when using bitcode lazy loading

The auto-upgrade path could be called before the VST (global
names) was fully parsed, and thus intrinsic names were not
available and the autoupgrade logic could not operate.

Fix link failures with ThinLTO.

This is a recommit of r278610 with a different fix.

llvm-svn: 278615

8 years agoFix unsupported relocation type R_HEX_6_X' for symbol .rodata
Ron Lieberman [Sat, 13 Aug 2016 23:41:11 +0000 (23:41 +0000)]
Fix unsupported relocation type R_HEX_6_X' for symbol .rodata

LowerTargetConstantPool is not properly setting the TargetFlag to indicate
desired relocation. Coding error, the offset parameter was omitted, so the
TargetFlag was used as the offset, and the TargetFlag defaulted to zero.

This only affects -fpic compilation, and only those items created in a
Constant Pool, for example a vector of constants. Halide ran into this issue.

llvm-svn: 278614

8 years agoRevert "Fix bitcode auto-upgrade when using bitcode lazy loading"
Mehdi Amini [Sat, 13 Aug 2016 23:39:14 +0000 (23:39 +0000)]
Revert "Fix bitcode auto-upgrade when using bitcode lazy loading"

This reverts commit r278610. Tests are broken

llvm-svn: 278613

8 years ago[IRCE] Fix test case; NFC
Sanjoy Das [Sat, 13 Aug 2016 23:36:40 +0000 (23:36 +0000)]
[IRCE] Fix test case; NFC

The (negative) test case is supposed to check that IRCE does not muck
with range checks it cannot handle, not that it does the right thing in
the absence of profiling information.

llvm-svn: 278612

8 years ago[IRCE] Be resilient in the face of non-simplified loops
Sanjoy Das [Sat, 13 Aug 2016 23:36:35 +0000 (23:36 +0000)]
[IRCE] Be resilient in the face of non-simplified loops

Loops containing `indirectbr` may not be in simplified form, even after
running LoopSimplify.  Reject then gracefully, instead of tripping an
assert.

llvm-svn: 278611

8 years agoFix bitcode auto-upgrade when using bitcode lazy loading
Mehdi Amini [Sat, 13 Aug 2016 23:31:53 +0000 (23:31 +0000)]
Fix bitcode auto-upgrade when using bitcode lazy loading

The auto-upgrade path could be called before the VST (global
names) was fully parsed, and thus intrinsic names were not
available and the autoupgrade logic could not operate.

Fix link failures with ThinLTO.

llvm-svn: 278610

8 years agoRevert "Revert "Invariant start/end intrinsics overloaded for address space""
Mehdi Amini [Sat, 13 Aug 2016 23:31:24 +0000 (23:31 +0000)]
Revert "Revert "Invariant start/end intrinsics overloaded for address space""

This reverts commit 32fc6488e48eafc0ca1bac1bd9cbf0008224d530.

llvm-svn: 278609

8 years agoRevert "Invariant start/end intrinsics overloaded for address space"
Mehdi Amini [Sat, 13 Aug 2016 23:27:32 +0000 (23:27 +0000)]
Revert "Invariant start/end intrinsics overloaded for address space"

This reverts commit r276447.

llvm-svn: 278608

8 years ago[IRCE] Use dyn_cast instead of explicit isa/cast; NFC
Sanjoy Das [Sat, 13 Aug 2016 22:00:12 +0000 (22:00 +0000)]
[IRCE] Use dyn_cast instead of explicit isa/cast; NFC

llvm-svn: 278607

8 years ago[IRCE] Use range-for; NFC
Sanjoy Das [Sat, 13 Aug 2016 22:00:09 +0000 (22:00 +0000)]
[IRCE] Use range-for; NFC

llvm-svn: 278606

8 years ago[ADT] Add a reserve() method to DenseSet as well as an insert() for R-value
Mehdi Amini [Sat, 13 Aug 2016 20:42:19 +0000 (20:42 +0000)]
[ADT] Add a reserve() method to DenseSet as well as an insert() for R-value

Recommit 278600 with some fixes to make the test more robust.

llvm-svn: 278604

8 years agoRevert "[ADT] Add a reserve method to DenseSet as well as an insert() for R-value"
Mehdi Amini [Sat, 13 Aug 2016 20:14:39 +0000 (20:14 +0000)]
Revert "[ADT] Add a reserve method to DenseSet as well as an insert() for R-value"

This reverts commit r278600. The unittest does not pass on MSVC, there is
an extra move. Investigating how to make it more robust.

llvm-svn: 278603

8 years agoLimit DenseMap::setNumEntries input to 1<<31, in accordance with the 31 bits allocate...
Yaron Keren [Sat, 13 Aug 2016 19:46:31 +0000 (19:46 +0000)]
Limit DenseMap::setNumEntries input to 1<<31, in accordance with the 31 bits allocated to NumEntries.
std::numeric_limits<int>::max() may be something else than 1<<31.

llvm-svn: 278602

8 years agoAdd missing REQUIRES in sancov/print_coverage_pcs.test: it requires aarch64 as well now
Mehdi Amini [Sat, 13 Aug 2016 19:44:02 +0000 (19:44 +0000)]
Add missing REQUIRES in sancov/print_coverage_pcs.test: it requires aarch64 as well now

llvm-svn: 278601

8 years ago[ADT] Add a reserve method to DenseSet as well as an insert() for R-value
Mehdi Amini [Sat, 13 Aug 2016 19:40:13 +0000 (19:40 +0000)]
[ADT] Add a reserve method to DenseSet as well as an insert() for R-value

llvm-svn: 278600

8 years ago[x86] add tests to show missed 64-bit immediate merging
Sanjay Patel [Sat, 13 Aug 2016 18:42:14 +0000 (18:42 +0000)]
[x86] add tests to show missed 64-bit immediate merging

Tests are slightly modified versions of those written by
Sunita Marathe in D23391.

llvm-svn: 278599

8 years agoTest commit
Aditya Kumar [Sat, 13 Aug 2016 11:56:50 +0000 (11:56 +0000)]
Test commit

llvm-svn: 278598

8 years ago[X86] Add a check of isCommutable at the top of X86InstrInfo::findCommutedOpIndices...
Craig Topper [Sat, 13 Aug 2016 06:48:44 +0000 (06:48 +0000)]
[X86] Add a check of isCommutable at the top of X86InstrInfo::findCommutedOpIndices. Most callers don't check if the instruction is commutable before calling.

This saves us the trouble of ending up in the default of the switch and having to determine if this is an FMA or not.

llvm-svn: 278597

8 years ago[AVX-512] Add isCommutable to scalar FMA3 instructions.
Craig Topper [Sat, 13 Aug 2016 06:48:41 +0000 (06:48 +0000)]
[AVX-512] Add isCommutable to scalar FMA3 instructions.

llvm-svn: 278596

8 years ago[AVX-512] Add commutable flags to 132 form FMA3 instructions.
Craig Topper [Sat, 13 Aug 2016 06:48:39 +0000 (06:48 +0000)]
[AVX-512] Add commutable flags to 132 form FMA3 instructions.

llvm-svn: 278595

8 years ago[X86] Remove patterns for (vzmovl (insert_subvector undef, (scalar_to_vector))) as...
Craig Topper [Sat, 13 Aug 2016 06:02:19 +0000 (06:02 +0000)]
[X86] Remove patterns for (vzmovl (insert_subvector undef, (scalar_to_vector))) as the (vzmovl VR256) pattern has higher priority. NFC

llvm-svn: 278594

8 years ago[AVX-512] Remove an AddedComplexity that was prioritizing basic vzmovl patterns over...
Craig Topper [Sat, 13 Aug 2016 05:43:20 +0000 (05:43 +0000)]
[AVX-512] Remove an AddedComplexity that was prioritizing basic vzmovl patterns over more complex ones that produce better code.

llvm-svn: 278593

8 years ago[AVX-512] Add patterns to support VZEXT_MOVL from 512-bit vectors with 64-bit and...
Craig Topper [Sat, 13 Aug 2016 05:33:12 +0000 (05:33 +0000)]
[AVX-512] Add patterns to support VZEXT_MOVL from 512-bit vectors with 64-bit and 32-bit elements.

Fixes PR28961.

llvm-svn: 278592

8 years ago[PM] Port LoopDataPrefetch to new pass manager
Teresa Johnson [Sat, 13 Aug 2016 04:11:27 +0000 (04:11 +0000)]
[PM] Port LoopDataPrefetch to new pass manager

Summary:
Refactor the existing support into a LoopDataPrefetch implementation
class and a LoopDataPrefetchLegacyPass class that invokes it.
Add a new LoopDataPrefetchPass for the new pass manager that utilizes
the LoopDataPrefetch implementation class.

Reviewers: mehdi_amini

Subscribers: sanjoy, mzolotukhin, nemanjai, llvm-commits

Differential Revision: https://reviews.llvm.org/D23483

llvm-svn: 278591

8 years agoAMDGPU: Fix not estimating MBB operand sizes correctly
Matt Arsenault [Sat, 13 Aug 2016 01:43:54 +0000 (01:43 +0000)]
AMDGPU: Fix not estimating MBB operand sizes correctly

llvm-svn: 278590