Commit Graph

179492 Commits

Author SHA1 Message Date
Sam Clegg 9d21f510ee Fix -DBUILD_SHARED_LIBS=ON build after rL362160
Differential Revision: https://reviews.llvm.org/D62709

llvm-svn: 362180
2019-05-31 01:04:00 +00:00
Craig Topper 70dc2200a2 [X86] Remove result type constraints from the extloadv2f32/extloadv4f32/extloadv8f32 PatFrags. NFC
The result types aren't mentioned in the pattern name so really shouldn't be in the PatFrags.

The users of these either have their own type constraint or rely on the type constranit system to realize the only legal extend would be to f64.

llvm-svn: 362175
2019-05-30 23:35:24 +00:00
Matt Arsenault 18659f84b2 MISched: Fix -misched-regpressure=0 if subreg liveness enabled
Test is waiting on fixing several more crashes in the AMDGPU scheduler
implementation with this.

llvm-svn: 362174
2019-05-30 23:31:36 +00:00
Craig Topper d6b74cc859 [X86] Remove code that unnecessarily sets EXTLOAD with src type of v2f32/v4f32/v8f32 as Legal for SSE2/AVX/AVX512 respectively. NFC
The LoadExt table defaults to all combinations being Legal. For
vector types, only src VTs with an i1 element type were ever changed.
So we don't need to mark them legal manually.

llvm-svn: 362170
2019-05-30 22:29:06 +00:00
Chris Bieneman 760a9ee63c Support codesigning bundles and forcing
Summary:
Clangd's framework is assembled by copying binaries from the lib and bin directories into a bundle shape. This results in an invalid bundle code signature because the signature only applies to the binaries not the resources.

This patch adds two new options to `llvm_codesign` to enable re-signing the library and XPC service as bundles.

The `BUNDLE_PATH` option allow specifying an explicit path to codesign, which enables signing bundles which aren't generated using CMake's `FRAMEWORK` or `BUNDLE` target properties.

The `FORCE` option allows re-signing binaries that have already been signed. This is required for how clangd exposes the clangd library and tools as both XPC and non-XPC services using the same binary.

Reviewers: jkorous, bogner

Reviewed By: bogner

Subscribers: mgorny, ilya-biryukov, dexonsmith, arphaman, kadircet, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62693

llvm-svn: 362169
2019-05-30 22:25:48 +00:00
Douglas Yung f1e300ca1a Fix test to add missing '|' to regex.
llvm-svn: 362168
2019-05-30 22:20:31 +00:00
Michael Trent 5e1881f9b2 Update the tests in r362121 / r362141 to allow for Windows-specific error
messages: "Is a directory" instead of "is a directory"

This should resolve the errors being reported on clang-x64-windows-msvc.

llvm-svn: 362167
2019-05-30 22:11:29 +00:00
Amy Huang dd3a9caf47 Add enums as global variables in the IR metadata.
Summary:
Keeps track of the enums that were used by saving them as DIGlobalVariables,
since CodeView emits debug info for global constants.

Reviewers: rnk

Subscribers: aprantl, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62635

llvm-svn: 362166
2019-05-30 22:04:11 +00:00
Francis Visoiu Mistrih 48998d10e0 [Remarks] Fix usage of enum class
Breaks the build on some compilers:

http://lab.llvm.org:8011/builders/clang-cmake-x86_64-avx2-linux/builds/9720/steps/build%20stage%201/logs/stdio

llvm-svn: 362165
2019-05-30 22:01:56 +00:00
Francis Visoiu Mistrih 6ada11f134 [Remarks][NFC] Move the serialization to lib/Remarks
Separate the remark serialization to YAML from the LLVM Diagnostics.

This adds a new serialization abstraction: remarks::Serializer. It's
completely independent from lib/IR and it provides an easy way to
replace YAML by providing a new remarks::Serializer.

Differential Revision: https://reviews.llvm.org/D62632

llvm-svn: 362160
2019-05-30 21:45:59 +00:00
Roman Lebedev 31f1939848 [NFC][ARM] Add a test that potentially causes endless combine loop with D62266
llvm-svn: 362159
2019-05-30 21:41:21 +00:00
Puyan Lotfi daaecf98c9 [MIR-Canon] Fixing case where MachineFunction is empty.
In cases where the machine function is empty: bail on the RPO traversal.

Differential Revision: https://reviews.llvm.org/D62617

llvm-svn: 362158
2019-05-30 21:37:25 +00:00
Roman Lebedev 46511d75b5 [DAGCombine] Limit 'hoist add/sub binop w/ constant op' to non-opaque consts
I don't have a test case for these, but there is a test case for D62266
where, even after all the constant-folding patches, we still end up
with endless combine loop. Which makes sense, since we don't constant
fold for opaque constants.

llvm-svn: 362156
2019-05-30 21:10:37 +00:00
Nikita Popov 751be7d51a [CVP] Add tests for non-overflowing saturating math; NFC
llvm-svn: 362153
2019-05-30 21:03:17 +00:00
Nikita Popov e906f2a370 [CVP] Generalize willNotOverflow(); NFC
Change argument from WithOverflowInst to BinaryOpIntrinsic, so this
function can also be used for saturating math intrinsics.

llvm-svn: 362152
2019-05-30 21:03:10 +00:00
Lang Hames a100042b27 [RuntimeDyld] Update reserveAllocationSpace to account for stub padding.
This should fix the buildbot failures caused by r362139.

llvm-svn: 362151
2019-05-30 20:58:28 +00:00
Martin Storsjo 0fe645c086 [InstCombine] Avoid use after free in DenseMap, when built with GCC
Previously, this used a statement like this:
    Map[A] = Map[B];

This is equivalent to the following:
    const auto &Src = Map[B];
    auto &Dest = Map[A];
    Dest = Src;

The second statement, "auto &Dest = Map[A];" can insert a new
element into the DenseMap, which can potentially grow and reallocate
the DenseMap's internal storage, which will invalidate the existing
reference to the source. When doing the actual assignment,
the Src reference is dereferenced, accessing memory that was
freed when the DenseMap grew.

This issue hasn't shown up when LLVM was built with Clang, because
the right hand side ended up dereferenced before evaulating the
left hand side. (If the value type is a larger data type, Clang doesn't
do this but behaves like GCC.)

With GCC, a cast to Value* isn't enough to make it dereference the
right hand side reference before invoking operator[] (while that is
enough to make Clang/LLVM do the right thing for larger types), but
storing it in an intermediate variable in a separate statement works.

This fixes PR42065.

Differential Revision: https://reviews.llvm.org/D62624

llvm-svn: 362150
2019-05-30 20:53:21 +00:00
Roman Lebedev a4e3b50e26 [DAGCombiner][X86][AArch64] (x - C) + y -> (x + y) - C fold. Try 2
Summary:
Only vector tests are being affected here,
since subtraction by scalar constant is rewritten
as addition by negated constant.

No surprising test changes.

https://rise4fun.com/Alive/pbT

This is a recommit, originally committed in rL361852, but reverted
to investigate test-suite compile-time hangs.

Reviewers: RKSimon, craig.topper, spatel

Reviewed By: RKSimon

Subscribers: javed.absar, kristof.beyls, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62257

llvm-svn: 362146
2019-05-30 20:37:49 +00:00
Roman Lebedev 57aa36ff91 [DAGCombine] (x - C) - y -> (x - y) - C fold. Try 3
Summary:
Again only vectors affected. Frustrating. Let me take a look into that..

https://rise4fun.com/Alive/AAq

This is a recommit, originally committed in rL361852, but reverted
to investigate test-suite compile-time hangs, and then reverted in
rL362109 to fix missing constant folds that were causing
endless combine loops.

Reviewers: RKSimon, craig.topper, spatel

Reviewed By: RKSimon

Subscribers: javed.absar, JDevlieghere, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62294

llvm-svn: 362145
2019-05-30 20:37:39 +00:00
Roman Lebedev 63b4741534 [DAGCombine][X86][AArch64][AMDGPU] (x - y) + -1 -> add (xor y, -1), x fold. Try 3
Summary:
This prevents regressions in next patch,
and somewhat recovers from the regression to AMDGPU test in D62223.

It is indeed not great that we leave vector decrement,
don't transform it into vector add all-ones..

https://rise4fun.com/Alive/ZRl

This is a recommit, originally committed in rL361852, but reverted
to investigate test-suite compile-time hangs, and then reverted in
rL362109 to fix missing constant folds that were causing
endless combine loops.

Reviewers: RKSimon, craig.topper, spatel, arsenm

Reviewed By: RKSimon, arsenm

Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, javed.absar, dstuttard, tpr, t-tye, kristof.beyls, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62263

llvm-svn: 362144
2019-05-30 20:37:29 +00:00
Roman Lebedev 05ad5fd213 [DAGCombiner][X86][AArch64][SPARC][SystemZ] y - (x + C) -> (y - x) - C fold. Try 3
Summary:
Direct sibling of D62223 patch.
While i don't have a direct motivational pattern for this,
it would seem to make sense to handle both patterns (or none),
for symmetry?

The aarch64 changes look neutral;
sparc and systemz look like improvement (one less instruction each);
x86 changes - 32bit case improves, 64bit case shows that LEA no longer
gets constructed, which may be because that whole test is `-mattr=+slow-lea,+slow-3ops-lea`

https://rise4fun.com/Alive/ffh

This is a recommit, originally committed in rL361852, but reverted
to investigate test-suite compile-time hangs, and then reverted in
rL362109 to fix missing constant folds that were causing
endless combine loops.

Reviewers: RKSimon, craig.topper, spatel, t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, jyknight, javed.absar, kristof.beyls, fedor.sergeev, jrtc27, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62252

llvm-svn: 362143
2019-05-30 20:37:18 +00:00
Roman Lebedev 1d9ec7a81b [DAGCombiner][X86][AArch64][AMDGPU] (x + C) - y -> (x - y) + C fold. Try 3
Summary:
The main motivation is shown by all these `neg` instructions that are now created.
In particular, the `@reg32_lshr_by_negated_unfolded_sub_b` test.

AArch64 test changes all look good (`neg` created), or neutral.

X86 changes look neutral (vectors), or good (`neg` / `xor eax, eax` created).

I'm not sure about `X86/ragreedy-hoist-spill.ll`, it looks like the spill
is now hoisted into preheader (which should still be good?),
2 4-byte reloads become 1 8-byte reload, and are elsewhere,
but i'm not sure how that affects that loop.

I'm unable to interpret AMDGPU change, looks neutral-ish?

This is hopefully a step towards solving [[ https://bugs.llvm.org/show_bug.cgi?id=41952 | PR41952 ]].

https://rise4fun.com/Alive/pkdq (we are missing more patterns, i'll submit them later)

This is a recommit, originally committed in rL361852, but reverted
to investigate test-suite compile-time hangs, and then reverted in
rL362109 to fix missing constant folds that were causing
endless combine loops.

Reviewers: craig.topper, RKSimon, spatel, arsenm

Reviewed By: RKSimon

Subscribers: bjope, qcolombet, kzhuravl, jvesely, wdng, nhaehnle, yaxunl, javed.absar, dstuttard, tpr, t-tye, kristof.beyls, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62223

llvm-svn: 362142
2019-05-30 20:36:54 +00:00
Michael Trent c58130bc84 Write new tests for r362121
Summary:
The tests for r362121 ran dsymutil against a test binary every time.
This caused problems on lld-x86_64-ubuntu-fast as dsymutil required
a lipo tool be available to process those binaries.

This change rewrites the new test cases in macho-disassemble-g-dsym
to use bespoke test binaries (exe and dwarf) simplifying the test's
runtime dependencies.

The changes to tools/llvm-objdump/MachODump.cpp are unchanged from
r362121

Reviewers: pete, lhames, JDevlieghere

Reviewed By: pete

Subscribers: smeenai, aprantl, rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62694

llvm-svn: 362141
2019-05-30 20:09:09 +00:00
Lang Hames 0e124b37bd [RuntimeDyld] Apply padding and alignment bumps to all sections with stubs, and
increase the MachO/x86-64 stub alignment to 8.

Stub alignment should be guaranteed for any section containing RuntimeDyld
stubs/GOT-entries. To do this we should pad and align all sections containing
stubs, not just code sections.

This commit also bumps the MachO/x86-64 stub alignment to 8, so that GOT entries
will be aligned.

llvm-svn: 362139
2019-05-30 19:59:20 +00:00
Cameron McInally 04a38b924e [NFC][InstCombine] Add unary FNeg tests to fmul.ll
llvm-svn: 362137
2019-05-30 19:42:25 +00:00
Matt Arsenault e0a4da8c0a AMDGPU/GlobalISel: Add wave scratch offset argument
Avoids crashing in PEI in a future change.

llvm-svn: 362136
2019-05-30 19:33:18 +00:00
Roman Lebedev 7eb8b5b5dd [DAGCombine] ((c1-A)-c2) -> ((c1-c2)-A) constant-fold
Summary: https://rise4fun.com/Alive/B0A

Reviewers: t.p.northover, RKSimon, spatel, craig.topper

Reviewed By: RKSimon

Subscribers: javed.absar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62691

llvm-svn: 362135
2019-05-30 19:27:51 +00:00
Roman Lebedev 691b5e2ecc [DAGCombine] (A-C1)-C2 -> A-(C1+C2) constant-fold
Summary: https://rise4fun.com/Alive/Mb1M

Reviewers: RKSimon, craig.topper, spatel, t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, javed.absar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62689

llvm-svn: 362134
2019-05-30 19:27:42 +00:00
Roman Lebedev 0a3dbbcdfb [DAGCombine] (A+C1)-C2 -> A+(C1-C2) constant-fold
Summary:
Direct sibling of D62662, the root cause of the endless combine loop in D62257

https://rise4fun.com/Alive/d3W

Reviewers: RKSimon, craig.topper, spatel, t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, javed.absar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62664

llvm-svn: 362133
2019-05-30 19:27:32 +00:00
Roman Lebedev 9ff3159b4a [DAGCombine] Use FoldConstantArithmetic() to perform C2-(A+C1) -> (C2-C1)-A fold
Summary:
No tests change, and i'm not sure how to test this, but it's better safe than sorry.

Reviewers: spatel, RKSimon, craig.topper, t.p.northover

Reviewed By: craig.topper

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62663

llvm-svn: 362132
2019-05-30 19:27:26 +00:00
Roman Lebedev cc9a9cf237 [DAGCombine] ((A-c1)+c2) -> (A+(c2-c1)) constant-fold
Summary:
This was the root cause of the endless combine loop in D62257

https://rise4fun.com/Alive/d3W

Reviewers: RKSimon, spatel, craig.topper, t.p.northover

Reviewed By: t.p.northover

Subscribers: t.p.northover, javed.absar, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62662

llvm-svn: 362131
2019-05-30 19:27:19 +00:00
Roman Lebedev ef95679741 [DAGCombine] Use FoldConstantArithmetic() to perform ((c1-A)+c2) -> (c1+c2)-A fold
Summary: No tests change, and i'm not sure how to test this, but it's better safe than sorry.

Reviewers: spatel, RKSimon, craig.topper, t.p.northover

Reviewed By: craig.topper

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62661

llvm-svn: 362130
2019-05-30 19:27:10 +00:00
Tim Northover b7141207a4 Reapply: IR: add optional type to 'byval' function parameters
When we switch to opaque pointer types we will need some way to describe
how many bytes a 'byval' parameter should occupy on the stack. This adds
a (for now) optional extra type parameter.

If present, the type must match the pointee type of the argument.

The original commit did not remap byval types when linking modules, which broke
LTO. This version fixes that.

Note to front-end maintainers: if this causes test failures, it's probably
because the "byval" attribute is printed after attributes without any parameter
after this change.

llvm-svn: 362128
2019-05-30 18:48:23 +00:00
Tim Renouf 7fecdf36cc [AMDGPU] Added target-specific attribute amdgpu-max-memory-clause
With LLPC, previous investigation has suggested that si-scheduler
interacts badly with SiFormMemoryClauses on an XNACK target in some
games.

That needs further investigation in the future. In the meantime, this
commit adds a target-specific attribute to allow us to disable
SIFormMemoryClauses by setting it to 1 on a per-function basis for LLPC
to use.

Differential Revision: https://reviews.llvm.org/D62572

Change-Id: Ia0ca12ce79093cbbe86caded723ffb13384ede92
llvm-svn: 362127
2019-05-30 18:46:34 +00:00
Florian Hahn 9bbdde2598 [LV] Remove the redundant using LoopVectorizationPlanner:VPlanPtr
VPlan.h already contains the declaration of VPlanPtr type alias:

using VPlanPtr = std::unique_ptr<VPlan>;

The LoopVectorizationPlanner class also contains the same declaration
of VPlanPtr and therefore LoopVectorize requires a long wording when
its methods return VPlanPtr:

    LoopVectorizationPlanner::VPlanPtr
    LoopVectorizationPlanner::buildVPlanWithVPRecipes(...)

but LoopVectorize.cpp includes VPlan.h (via LoopVectorizationPlanner.h)
and can use VPlanPtr from that header.

Patch by Pavel Samolysov.

Reviewers: hsaito, rengolin, fhahn

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D62576

llvm-svn: 362126
2019-05-30 18:46:13 +00:00
Craig Topper 778e445c58 [LoopVectorize] Add FNeg instruction support
Differential Revision: https://reviews.llvm.org/D62510

llvm-svn: 362124
2019-05-30 18:19:35 +00:00
Michael Trent 5d5f629922 Reverting change r362121 due to lld-x86_64-ubuntu-fast test failures
llvm-svn: 362123
2019-05-30 18:17:10 +00:00
Puyan Lotfi 0f4446b270 [MIR-Canon] Add support for rewriting VRegs that are typed but don't have an RC.
There were crashes (addrspace-memoperands.mir was only one of them) in MIR that
had operands that came from before register classes were set. With these
operands, creating a replacement vreg (for MIR-Canon's renaming) needs to use
the vreg type rather than the RegisterClass which is not present.

Differential Revision: https://reviews.llvm.org/D62543

llvm-svn: 362122
2019-05-30 18:06:28 +00:00
Michael Trent 50daaa5f6b Support Universal dSYM files in llvm-objdump
Summary:
Commonly programmers use llvm-objdump to disassemble Mach-O target
binaries with Mach-O dSYMS. While llvm-objdump allows programmers to
disassemble Universal binaries, it previously did not recognize
Universal dSYM files. This change updates llvm-objdump to support
passing in Universal files via the -dsym option. Now, when
disassembling a Mach-O file either as a stand alone file or as an entry
in a Universal binariy, llvm-objdump will search through a Universal
dSYM for a Mach-O matching the architecture flag of the file being
disassembled.

Reviewers: pete, lhames

Reviewed By: pete

Subscribers: rupprecht, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62642

llvm-svn: 362121
2019-05-30 17:56:05 +00:00
Jan Korous 2980f3c18f [NFC] Fix SmallVector::append comments
Fix the copy-pasted comment.
Remove low-value comments.

llvm-svn: 362120
2019-05-30 17:54:26 +00:00
Kevin P. Neal 51ce0b196a Correct error in revert of r362112.
Differential Revision:	http://reviews.llvm.org/D62546

llvm-svn: 362118
2019-05-30 17:21:45 +00:00
Kevin P. Neal d3db7b40b0 Revert r362112, it broke the bots with the message "Unsupported vector argument or return type"
Differential Revision:	http://reviews.llvm.org/D62546

llvm-svn: 362117
2019-05-30 17:10:21 +00:00
Roman Lebedev 2ae4b33181 [NFC][Codegen] Potential add/sub constant folding: fixup non-splat tests
llvm-svn: 362114
2019-05-30 16:50:43 +00:00
J. Ryan Stinnett d45eaf9405 [Docs] Modernize references to macOS
Summary:
This updates all places in documentation that refer to "Mac OS X", "OS X", etc.
to instead use the modern name "macOS" when no specific version number is
mentioned.

If a specific version is mentioned, this attempts to use the OS name at the time
of that version:

* Mac OS X for 10.0 - 10.7
* OS X for 10.8 - 10.11
* macOS for 10.12 - present

Reviewers: JDevlieghere

Subscribers: mgorny, christof, arphaman, cfe-commits, lldb-commits, libcxx-commits, llvm-commits

Tags: #clang, #lldb, #libc, #llvm

Differential Revision: https://reviews.llvm.org/D62654

llvm-svn: 362113
2019-05-30 16:46:22 +00:00
Kevin P. Neal 2e1807678d [FPEnv] Added a special UnrollVectorOp method to deal with the chain on StrictFP opcodes
This change creates UnrollVectorOp_StrictFP. The purpose of this is to address a failure that consistently occurs when calling StrictFP functions on vectors whose number of elements is 3 + 2n on most platforms, such as PowerPC or SystemZ. The old UnrollVectorOp method does not expect that the vector that it will unroll will have a chain, so it has an assert that prevents it from running if this is the case. This new StrictFP version of the method deals with the chain while unrolling the vector. With this new function in place during vector widending, llc can run vector-constrained-fp-intrinsics.ll for SystemZ successfully.

Submitted by:	Drew Wock <drew.wock@sas.com>
Reviewed by:	Cameron McInally, Kevin P. Neal
Approved by:	Cameron McInally
Differential Revision:	http://reviews.llvm.org/D62546

llvm-svn: 362112
2019-05-30 16:44:47 +00:00
Roman Lebedev 700fdb1070 [NFC][Codegen] Add better test coverage for potential add/sub constant folding
This adds hopefully-full test coverage for all the possible permutations:
First op is one of:
* x + c1
* x - c1
* c1 - x

Second op is one of:
* + c2
* - c2
* c2 -

And thus 3*3=9 patterns.
Some of them show missed constant-folds.

Without previous patch (the revert), these tests were causing endless
dagcombine loop. I really should have thought about this first :S

llvm-svn: 362110
2019-05-30 16:07:19 +00:00
Roman Lebedev 019d270e43 [DAGCombine] Revert of recommit of "binop-with-const hoisting" patches
I was looking into an endless combine loop the uncommitted follow-up patch
was causing, and it appears even these patches can exibit such an
endless loop. The root cause is that we try to hoist one binop (add/sub) with
constant operand, and if we get two such binops both of which are
eligible for this hoisting, we get stuck.

Some cases may highlight missing constant-folds.

Reverts r361871,r361872,r361873,r361874.

llvm-svn: 362109
2019-05-30 16:07:11 +00:00
Sam Parker 913604a637 [NFC][ARM][ParallelDSP] Refactor narrow sequence
Most of the code used for finding a 'narrow' sequence is not used,
so I've removed it and simplified the calls from the smlad matcher.

llvm-svn: 362104
2019-05-30 15:26:37 +00:00
Sjoerd Meijer eb072b5a6a [ARM] Change the MC names for VMAXNM/VMINNM
Now the NEON ones have a prefix "NEON_", and the VFP ones have a
prefix "VFP_". This is so that the regex in ARMScheduleA57.td can be
made to match both of _those_ classes of VMAXNM without also matching
the MVE ones that are going to be introduced soon. NFCI.

Patch by Simon Tatham.

Differential Revision: https://reviews.llvm.org/D60700

llvm-svn: 362097
2019-05-30 14:34:29 +00:00
Simon Pilgrim 5359bb4d31 [ARM] LowerVECTOR_SHUFFLE - fix uninitialized variable warnings. NFCI.
llvm-svn: 362094
2019-05-30 14:01:24 +00:00