platform/upstream/llvm.git
5 years agoFix codemodels.c test case (only test mcmodel=medium on X86).
Caroline Tice [Sat, 22 Sep 2018 18:25:58 +0000 (18:25 +0000)]
Fix codemodels.c test case (only test mcmodel=medium on X86).

aarch64 testing is broken because "medium" is not a valid
code-model on aarch64, and codemodels.c tests that.  This fixes
that problem by adding "-triple x86_64-unknown-linux-gnu" to the
test with "-mcode-model moedium".

llvm-svn: 342812

5 years ago[libunwind][NFC] Suppress unused parameter warnings
Louis Dionne [Sat, 22 Sep 2018 18:18:34 +0000 (18:18 +0000)]
[libunwind][NFC] Suppress unused parameter warnings

Reviewers: EricWF

Subscribers: christof, chrib, dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D52393

llvm-svn: 342811

5 years agoDocument new symbols for __u64toa and __u32toa
Zhihao Yuan [Sat, 22 Sep 2018 18:05:28 +0000 (18:05 +0000)]
Document new symbols for __u64toa and __u32toa

Summary:
They are introduced in r338479; their Linux ABI changes are recorded in r338486.

TODO: Record the Mac OS X ABI changes.

Reviewers: EricWF

Reviewed By: EricWF

Subscribers: christof, ldionne, libcxx-commits, cfe-commits

Differential Revision: https://reviews.llvm.org/D52391

llvm-svn: 342810

5 years ago[DAGCombiner] Rewrite r331896 in a different way to address a FIXME. NFCI
Craig Topper [Sat, 22 Sep 2018 18:03:14 +0000 (18:03 +0000)]
[DAGCombiner] Rewrite r331896 in a different way to address a FIXME. NFCI

llvm-svn: 342809

5 years ago[libc++] Add _LIBCPP_ENABLE_NODISCARD and _LIBCPP_NODISCARD_EXT to allow pre-C++2a...
Roman Lebedev [Sat, 22 Sep 2018 17:54:48 +0000 (17:54 +0000)]
[libc++] Add _LIBCPP_ENABLE_NODISCARD and _LIBCPP_NODISCARD_EXT to allow pre-C++2a [[nodiscard]]

Summary:
The `[[nodiscard]]` attribute is intended to help users find bugs where
function return values are ignored when they shouldn't be. After C++17 the
C++ standard has started to declared such library functions as `[[nodiscard]]`.
However, this application is limited and applies only to dialects after C++17.
Users who want help diagnosing misuses of STL functions may desire a more
liberal application of `[[nodiscard]]`.

For this reason libc++ provides an extension that does just that! The
extension must be enabled by defining `_LIBCPP_ENABLE_NODISCARD`. The extended
applications of `[[nodiscard]]` takes two forms:

1. Backporting `[[nodiscard]]` to entities declared as such by the
   standard in newer dialects, but not in the present one.

2. Extended applications of `[[nodiscard]]`, at the libraries discretion,
   applied to entities never declared as such by the standard.

Users may also opt-out of additional applications `[[nodiscard]]` using
additional macros.

Applications of the first form, which backport `[[nodiscard]]` from a newer
dialect may be disabled using macros specific to the dialect it was added. For
example `_LIBCPP_DISABLE_NODISCARD_AFTER_CXX17`.

Applications of the second form, which are pure extensions, may be disabled
by defining `_LIBCPP_DISABLE_NODISCARD_EXT`.

This patch was originally written by me (Roman Lebedev),
then but then reworked by Eric Fiselier.

Reviewers: mclow.lists, thakis, EricWF

Reviewed By: thakis, EricWF

Subscribers: llvm-commits, mclow.lists, lebedev.ri, EricWF, rjmccall, Quuxplusone, cfe-commits, christof

Differential Revision: https://reviews.llvm.org/D45179

llvm-svn: 342808

5 years ago[bpf] Test case for symbol information in object file
Yonghong Song [Sat, 22 Sep 2018 17:31:01 +0000 (17:31 +0000)]
[bpf] Test case for symbol information in object file

This patch tests the change introduced in r342556.

Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
llvm-svn: 342807

5 years ago[InstCombine][x86] try even harder to convert blendv intrinsic to generic IR (PR38814)
Sanjay Patel [Sat, 22 Sep 2018 14:43:55 +0000 (14:43 +0000)]
[InstCombine][x86] try even harder to convert blendv intrinsic to generic IR (PR38814)

Follow-up to rL342324 (D52059):

Missing optimizations with blendv are shown in:
https://bugs.llvm.org/show_bug.cgi?id=38814

This is an easier and more powerful solution than adding pattern matching for a few
special cases in the backend. The potential danger with this transform in IR is that
the condition value can get separated from the select, and the backend might not be
able to make a blendv out of it again.

llvm-svn: 342806

5 years agoSimilar to the handling of darwin target triples, strip the version
Dimitry Andric [Sat, 22 Sep 2018 14:37:49 +0000 (14:37 +0000)]
Similar to the handling of darwin target triples, strip the version
numbers off of freebsd target triples, when generating the name of the
ABI list file for check-cxx-abilist target.

Also remove unnecessary parentheses in the regex for darwin, and
slightly reword the comment.

llvm-svn: 342805

5 years agoChange type of m_user_expression_start_pos to size_t
Raphael Isemann [Sat, 22 Sep 2018 13:33:08 +0000 (13:33 +0000)]
Change type of m_user_expression_start_pos to size_t

AbsPosToLineColumnPos is the only reader of m_user_expression_start_pos
and actually treats it like a size_t. Also the value we store in
m_user_expression_start_pos is originally a size_t, so it makes sense
to change the type of this variable to size_t.

llvm-svn: 342804

5 years agoRemove a bunch of empty subdirectories. NFCI.
Dimitry Andric [Sat, 22 Sep 2018 13:32:37 +0000 (13:32 +0000)]
Remove a bunch of empty subdirectories. NFCI.

llvm-svn: 342803

5 years agouse the current url for bugzilla
Sylvestre Ledru [Sat, 22 Sep 2018 07:41:09 +0000 (07:41 +0000)]
use the current url for bugzilla

llvm-svn: 342802

5 years agoupdate the links to use https
Sylvestre Ledru [Sat, 22 Sep 2018 07:39:44 +0000 (07:39 +0000)]
update the links to use https

llvm-svn: 342801

5 years ago[lib/MC] - Set SHF_EXCLUDE flag for .dwo sections.
George Rimar [Sat, 22 Sep 2018 07:36:20 +0000 (07:36 +0000)]
[lib/MC] - Set SHF_EXCLUDE flag for .dwo sections.

DWARF5 spec says about single file split case:

"The sections that do not require relocation, however, can be written
to the relocatable object (.o) file but ignored by the
the linker or they can be written to a separate DWARF object (.dwo) file
that need not be accessed by the linker."

Nice way to make linker to ignore them is to set SHF_EXCLUDE flag.
It seems to be not harmful to always set it for .dwo sections.
That is what this patch does.

Differential revision: https://reviews.llvm.org/D52303

llvm-svn: 342800

5 years ago[mips] Provide more detailed description for MIPS targets. NFC
Simon Atanasyan [Sat, 22 Sep 2018 06:04:32 +0000 (06:04 +0000)]
[mips] Provide more detailed description for MIPS targets. NFC

llvm-svn: 342799

5 years ago[mips] Remove obsoleted "experimental" tag from MIPS 64-bit targets. NFC
Simon Atanasyan [Sat, 22 Sep 2018 06:04:26 +0000 (06:04 +0000)]
[mips] Remove obsoleted "experimental" tag from MIPS 64-bit targets. NFC

llvm-svn: 342798

5 years ago[InstCombine] Fold (min/max ~X, Y) -> ~(max/min X, ~Y) when Y is freely invertible
Craig Topper [Sat, 22 Sep 2018 05:53:27 +0000 (05:53 +0000)]
[InstCombine] Fold (min/max ~X, Y) -> ~(max/min X, ~Y) when Y is freely invertible

Summary: This restores the combine that was reverted in r341883. The infinite loop from the failing test no longer occurs due to changes from r342163.

Reviewers: spatel, dmgreen

Reviewed By: spatel

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D52070

llvm-svn: 342797

5 years ago[X86] Fix inline expansion for memset in x32
Craig Topper [Sat, 22 Sep 2018 05:16:35 +0000 (05:16 +0000)]
[X86] Fix inline expansion for memset in x32

Summary: Similar to D51893 which was for memcpy

Reviewers: efriedma

Reviewed By: efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D52063

llvm-svn: 342796

5 years ago[X86] Fold (movmsk (setne (and X, (1 << C)), 0)) -> (movmsk (X << C)) for vXi8 vectors.
Craig Topper [Sat, 22 Sep 2018 05:08:38 +0000 (05:08 +0000)]
[X86] Fold (movmsk (setne (and X, (1 << C)), 0)) -> (movmsk (X << C)) for vXi8 vectors.

We don't have a vXi8 shift left so we need to bitcast to a vXi16 vector to perform the shift. If we let lowering legalize the vXi8 shift we get an extra and that we don't need and fail to remove.

llvm-svn: 342795

5 years agoUpdate smart pointer detection for thread safety analysis.
Richard Trieu [Sat, 22 Sep 2018 01:50:52 +0000 (01:50 +0000)]
Update smart pointer detection for thread safety analysis.

Objects are determined to be smart pointers if they have both a star and arrow
operator.  Some implementations of smart pointers have these overloaded
operators in a base class, while the check only searched the derived class.
This fix will also look for the operators in the base class.

llvm-svn: 342794

5 years ago[Lexer] Add udefined_behavior_sanitizer feature
Leonard Chan [Sat, 22 Sep 2018 01:03:16 +0000 (01:03 +0000)]
[Lexer] Add udefined_behavior_sanitizer feature

This can be used to detect whether the code is being built with UBSan using
the __has_feature(undefined_behavior_sanitizer) predicate.

Differential Revision: https://reviews.llvm.org/D52386

llvm-svn: 342793

5 years agoTest commit.
Vyacheslav Zakharin [Sat, 22 Sep 2018 01:01:03 +0000 (01:01 +0000)]
Test commit.

llvm-svn: 342792

5 years ago[llvm-size] Berkeley formatting: use tabs instead of spaces as field delimeters.
Jordan Rupprecht [Fri, 21 Sep 2018 23:48:12 +0000 (23:48 +0000)]
[llvm-size] Berkeley formatting: use tabs instead of spaces as field delimeters.

This matches GNU behavior for size and allows use of cut to parse the output of llvm-size.

llvm-svn: 342791

5 years agoThread safety analysis: Make printSCFG compile again [NFC]
Aaron Puchert [Fri, 21 Sep 2018 23:46:35 +0000 (23:46 +0000)]
Thread safety analysis: Make printSCFG compile again [NFC]

Not used productively, so no observable functional change.

Note that printSCFG doesn't yet work reliably, it seems to crash
sometimes.

llvm-svn: 342790

5 years agoFix codemodels.c test case (only test mcmodel-kernel on x86)
Caroline Tice [Fri, 21 Sep 2018 23:19:49 +0000 (23:19 +0000)]
Fix codemodels.c test case (only test mcmodel-kernel on x86)

A recent commit I made broke aarch64 testing, because "kernel"
apparently is not a valid code-model on aarch64, and one of my tests
tested that. This fixes the problem (hopefully) by adding "-triple
x86_64-unknown-linux-gnu" to the test build with "-mcodel-model
kernel".

Differential Revision: https://reviews.llvm.org/D52383

llvm-svn: 342789

5 years ago[X86] Teach fast isel to use MOV32ri64 for loading an unsigned 32 immediate into...
Craig Topper [Fri, 21 Sep 2018 23:14:05 +0000 (23:14 +0000)]
[X86] Teach fast isel to use MOV32ri64 for loading an unsigned 32 immediate into a 64-bit register.

Previously we used SUBREG_TO_REG+MOV32ri. But regular isel was changed recently to use the MOV32ri64 pseudo. Fast isel now does the same.

llvm-svn: 342788

5 years agoThread safety analysis: Make sure FactEntrys stored in FactManager are immutable...
Aaron Puchert [Fri, 21 Sep 2018 23:08:30 +0000 (23:08 +0000)]
Thread safety analysis: Make sure FactEntrys stored in FactManager are immutable [NFC]

Since FactEntrys are stored in the FactManager, we can't manipulate them
anymore when they are stored there.

llvm-svn: 342787

5 years ago[Loop Vectorizer] Abandon vectorization when no integer IV found
Warren Ristow [Fri, 21 Sep 2018 23:03:50 +0000 (23:03 +0000)]
[Loop Vectorizer] Abandon vectorization when no integer IV found

Support for vectorizing loops with secondary floating-point induction
variables was added in r276554.  A primary integer IV is still required
for vectorization to be done.  If an FP IV was found, but no integer IV
was found at all (primary or secondary), the attempt to vectorize still
went forward, causing a compiler-crash.  This change abandons that
attempt when no integer IV is found.  (Vectorizing FP-only cases like
this, rather than bailing out, is discussed as possible future work
in D52327.)

See PR38800 for more information.

Differential Revision: https://reviews.llvm.org/D52327

llvm-svn: 342786

5 years agoMove individual benchmark targets into the Utils folder in IDEs.
Aaron Ballman [Fri, 21 Sep 2018 23:01:32 +0000 (23:01 +0000)]
Move individual benchmark targets into the Utils folder in IDEs.

llvm-svn: 342785

5 years agoTry moving this function to another file.
Zachary Turner [Fri, 21 Sep 2018 23:00:37 +0000 (23:00 +0000)]
Try moving this function to another file.

I can't reproduce this compilation failure so I can't really
test this fix.

llvm-svn: 342784

5 years ago[ORC] In RTDyldObjectLinkingLayer, only call NotifyFreed if the object file
Lang Hames [Fri, 21 Sep 2018 22:59:48 +0000 (22:59 +0000)]
[ORC] In RTDyldObjectLinkingLayer, only call NotifyFreed if the object file
has been finalized.

This prevents crashes on unfinalized objects for clients using
JITEventListeners.

Patch by Geoff Levner. Thanks Geoff!

llvm-svn: 342783

5 years agoAdd benchmark and benchmark_main to the Utils folder in IDEs.
Aaron Ballman [Fri, 21 Sep 2018 22:55:57 +0000 (22:55 +0000)]
Add benchmark and benchmark_main to the Utils folder in IDEs.

llvm-svn: 342782

5 years agoAdd missing include.
Zachary Turner [Fri, 21 Sep 2018 22:44:31 +0000 (22:44 +0000)]
Add missing include.

llvm-svn: 342781

5 years ago[NativePDB] Add support for reading function signatures.
Zachary Turner [Fri, 21 Sep 2018 22:36:28 +0000 (22:36 +0000)]
[NativePDB] Add support for reading function signatures.

This adds support for parsing function signature records and returning
them through the native DIA interface.

llvm-svn: 342780

5 years ago[PDB] Add native reading support for UDT / class types.
Zachary Turner [Fri, 21 Sep 2018 22:36:04 +0000 (22:36 +0000)]
[PDB] Add native reading support for UDT / class types.

This allows the native reader to find records of class/struct/
union type and dump them.  This behavior is tested by using the
diadump subcommand against golden output produced by actual DIA
SDK on the same PDB file, and again using pretty -native to
confirm that we actually dump the classes.  We don't find class
members or anything like that yet, for now it's just the class
itself.

llvm-svn: 342779

5 years ago[New PM][PassInstrumentation] Adding PassInstrumentation to the AnalysisManager runs
Fedor Sergeev [Fri, 21 Sep 2018 22:10:17 +0000 (22:10 +0000)]
[New PM][PassInstrumentation] Adding PassInstrumentation to the AnalysisManager runs

As a prerequisite to time-passes implementation which needs to time both passes
and analyses, adding instrumentation points to the Analysis Manager.
The are two functional differences between Pass and Analysis instrumentation:
  - the latter does not increment pass execution counter
  - it does not provide ability to skip execution of the corresponding analysis

Reviewers: chandlerc, philip.pfaffe
Differential Revision: https://reviews.llvm.org/D51275

llvm-svn: 342778

5 years ago[COFF] Support linking to import libraries from GNU binutils
Martin Storsjo [Fri, 21 Sep 2018 22:01:06 +0000 (22:01 +0000)]
[COFF] Support linking to import libraries from GNU binutils

GNU binutils import libraries aren't the same kind of short import
libraries as link.exe and LLD produce, but are a plain static library
containing .idata section chunks. MSVC link.exe can successfully link
to them.

In order for imports from GNU import libraries to mix properly with the
normal import chunks, the chunks from the existing mechanism needs to
be added into named sections like .idata$2.

These GNU import libraries consist of one header object, a number of
object files, one for each imported function/variable, and one trailer.
Within the import libraries, the object files are ordered alphabetically
in this order. The chunks stemming from these libraries have to be
grouped by what library they originate from and sorted, to make sure
the section chunks for headers and trailers for the lists are ordered
as intended. This is done on all sections named .idata$*, before adding
the synthesized chunks to them.

Differential Revision: https://reviews.llvm.org/D38513

llvm-svn: 342777

5 years agollvm-dwarfdump --statistics: Unique abstract origins across multiple CUs.
Adrian Prantl [Fri, 21 Sep 2018 21:59:34 +0000 (21:59 +0000)]
llvm-dwarfdump --statistics: Unique abstract origins across multiple CUs.

Instead of indexing local variables by DIE offset, use the variable
name + the path through the lexical block tree. This makes the lookup
key consistent across duplicate abstract origins in different CUs.

llvm-svn: 342776

5 years ago[x86] add more tests for poetntial andnp splitting with AVX1; NFC
Sanjay Patel [Fri, 21 Sep 2018 21:25:16 +0000 (21:25 +0000)]
[x86] add more tests for poetntial andnp splitting with AVX1; NFC

llvm-svn: 342775

5 years agoMake compare function in r342648 have strict weak ordering.
Richard Trieu [Fri, 21 Sep 2018 21:20:33 +0000 (21:20 +0000)]
Make compare function in r342648 have strict weak ordering.

Comparison functions used in sorting algorithms need to have strict weak
ordering.  Remove the assert and allow comparisons on all lists.

llvm-svn: 342774

5 years ago[X86] Add AVX512 target to load scalar to vector tests
Simon Pilgrim [Fri, 21 Sep 2018 21:08:26 +0000 (21:08 +0000)]
[X86] Add AVX512 target to load scalar to vector tests

To investigate broadcast instruction codegen for D51553

llvm-svn: 342773

5 years ago[WebAssembly] Simplified selecting asmmatcher stack instructions.
Wouter van Oortmerssen [Fri, 21 Sep 2018 20:53:55 +0000 (20:53 +0000)]
[WebAssembly] Simplified selecting asmmatcher stack instructions.

Summary:
By using the existing isCodeGenOnly bit in the tablegen defs, as
suggested by tlively in https://reviews.llvm.org/D51662

Tested: llvm-lit -v `find test -name WebAssembly`

Reviewers: tlively

Subscribers: dschuff, sbc100, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D52373

llvm-svn: 342772

5 years agoTest commit. Removed a blank line.
Jorge Gorbe Moya [Fri, 21 Sep 2018 20:45:08 +0000 (20:45 +0000)]
Test commit. Removed a blank line.

llvm-svn: 342771

5 years ago[analyzer] Process state in checkEndFunction in RetainCountChecker
George Karpenkov [Fri, 21 Sep 2018 20:37:20 +0000 (20:37 +0000)]
[analyzer] Process state in checkEndFunction in RetainCountChecker

Modify the RetainCountChecker to perform state "adjustments" in
checkEndFunction, as performing work in PreStmt<ReturnStmt> does not
work with destructors.
The previous version made an implicit assumption that no code runs
after the return statement is executed.

rdar://43945028

Differential Revision: https://reviews.llvm.org/D52338

llvm-svn: 342770

5 years ago[analyzer] Highlight sink nodes in red
George Karpenkov [Fri, 21 Sep 2018 20:37:01 +0000 (20:37 +0000)]
[analyzer] Highlight sink nodes in red

Differential Revision: https://reviews.llvm.org/D52337

llvm-svn: 342769

5 years ago[analyzer] Associate diagnostics created in checkEndFunction with a return statement...
George Karpenkov [Fri, 21 Sep 2018 20:36:41 +0000 (20:36 +0000)]
[analyzer] Associate diagnostics created in checkEndFunction with a return statement, if possible

If not possible, use the last line of the declaration, as before.

Differential Revision: https://reviews.llvm.org/D52326

llvm-svn: 342768

5 years ago[analyzer] [NFC] Prefer make_unique over "new"
George Karpenkov [Fri, 21 Sep 2018 20:36:21 +0000 (20:36 +0000)]
[analyzer] [NFC] Prefer make_unique over "new"

Differential Revision: https://reviews.llvm.org/D52336

llvm-svn: 342767

5 years ago[analyzer] Fix bug in isInevitablySinking
George Karpenkov [Fri, 21 Sep 2018 20:36:01 +0000 (20:36 +0000)]
[analyzer] Fix bug in isInevitablySinking

If the non-sink report is generated at the exit node, it will be
suppressed by the current functionality in isInevitablySinking, as it
only checks the successors of the block, but not the block itself.

The bug shows up in RetainCountChecker checks.

Differential Revision: https://reviews.llvm.org/D52284

llvm-svn: 342766

5 years ago[analyzer] [NFC] Dead code removal
George Karpenkov [Fri, 21 Sep 2018 20:35:39 +0000 (20:35 +0000)]
[analyzer] [NFC] Dead code removal

Differential Revision: https://reviews.llvm.org/D52269

llvm-svn: 342765

5 years ago[libc++abi] is_strcmp parameter to is_equal is unused for WIN32
Pirama Arumuga Nainar [Fri, 21 Sep 2018 20:01:22 +0000 (20:01 +0000)]
[libc++abi] is_strcmp parameter to is_equal is unused for WIN32

Summary: Mark it as unused to avoid -Wunused-parameter.

Reviewers: EricWF, srhines, mstorsjo

Subscribers: christof, ldionne, libcxx-commits, cfe-commits

Differential Revision: https://reviews.llvm.org/D52368

llvm-svn: 342764

5 years agoSafeStack: Fix flaky test (PR39001)
Vlad Tsyrklevich [Fri, 21 Sep 2018 19:02:32 +0000 (19:02 +0000)]
SafeStack: Fix flaky test (PR39001)

Summary:
pthread_join() can return before a thread finishes exit()ing in the
kernel and a subsequent tgkill() can report the thread still alive.
Update the pthread-cleanup.c test to sleep and retry if it hits this
possible flake.

Thanks to Jeremy Morse for reporting.

Reviewers: jmorse, eugenis, vitalybuka

Reviewed By: jmorse, vitalybuka

Subscribers: delcypher, jfb, llvm-commits, #sanitizers, kcc

Differential Revision: https://reviews.llvm.org/D52330

llvm-svn: 342763

5 years agoMove architecture-specific address adjustment to architecture plugins
Tatyana Krasnukha [Fri, 21 Sep 2018 18:56:44 +0000 (18:56 +0000)]
Move architecture-specific address adjustment to architecture plugins

Differential Revision: https://reviews.llvm.org/D48623

llvm-svn: 342762

5 years ago[WebAssembly][NFC] Rename simd-conversions test to simd-bitcasts
Thomas Lively [Fri, 21 Sep 2018 18:46:39 +0000 (18:46 +0000)]
[WebAssembly][NFC] Rename simd-conversions test to simd-bitcasts

Summary:
This name is more accurate and I want to reuse the simd-conversions
name for testing the actual conversion ops.

Reviewers: aheejin, dschuff

Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D52333

llvm-svn: 342761

5 years agoPass code-model through Module IR to LTO which will use it.
Caroline Tice [Fri, 21 Sep 2018 18:41:31 +0000 (18:41 +0000)]
Pass code-model through Module IR to LTO which will use it.

Currently the code-model does not get saved in the module IR,
so if a code model is specified when compiling with LTO,
it gets lost and is not propagated properly to LTO. This patch,
along with one for the front end, fixes that.

Differential Revision: https://reviews.llvm.org/D52322

llvm-svn: 342760

5 years ago[NFC] use bit_cast in PointerSumType
JF Bastien [Fri, 21 Sep 2018 18:35:32 +0000 (18:35 +0000)]
[NFC] use bit_cast in PointerSumType

The code was already using union and memcpy to do this. Remove the memcpy. We can't just change the union because a reference to its member is returned.

llvm-svn: 342759

5 years agoAdd necessary support for storing code-model to module IR.
Caroline Tice [Fri, 21 Sep 2018 18:34:59 +0000 (18:34 +0000)]
Add necessary support for storing code-model to module IR.

Currently the code-model does not get saved in the module IR, so if a
code model is specified when compiling with LTO, it gets lost and is
not propagated properly to LTO. This patch does what is necessary in
the front end to pass the code-model to the module, so that the back
end can store it in the Module .

Differential Revision: https://reviews.llvm.org/D52323

llvm-svn: 342758

5 years agobuild: add libedit to include paths
Tatyana Krasnukha [Fri, 21 Sep 2018 18:34:41 +0000 (18:34 +0000)]
build: add libedit to include paths

Differential Revision: https://reviews.llvm.org/D51999

llvm-svn: 342757

5 years ago[x86] add (negative) andnp test for D52318; NFC
Sanjay Patel [Fri, 21 Sep 2018 18:24:53 +0000 (18:24 +0000)]
[x86] add (negative) andnp test for D52318; NFC

llvm-svn: 342756

5 years ago[x86] add test with optsize attribute for scalar->vector transform; NFC
Sanjay Patel [Fri, 21 Sep 2018 18:03:49 +0000 (18:03 +0000)]
[x86] add test with optsize attribute for scalar->vector transform; NFC

llvm-svn: 342755

5 years agoUpdate release notes.
Rui Ueyama [Fri, 21 Sep 2018 17:48:45 +0000 (17:48 +0000)]
Update release notes.

llvm-svn: 342754

5 years ago[WebAssembly] Made assembler only use stack instruction tablegen defs
Wouter van Oortmerssen [Fri, 21 Sep 2018 17:47:58 +0000 (17:47 +0000)]
[WebAssembly] Made assembler only use stack instruction tablegen defs

Summary:
This ensures we have the non-register version of the instruction.

The stack version of call_indirect now wants a type index argument,
so that has been added in the existing tests.

Tested:
llvm-lit -v `find test -name WebAssembly`

Reviewers: dschuff

Subscribers: sbc100, jgravelle-google, aheejin, sunfish, llvm-commits

Differential Revision: https://reviews.llvm.org/D51662

llvm-svn: 342753

5 years ago[CUDA] Fixed parsing of optional template-argument-list.
Artem Belevich [Fri, 21 Sep 2018 17:46:28 +0000 (17:46 +0000)]
[CUDA] Fixed parsing of optional template-argument-list.

We need to consider all tokens that start with '>' when
we're checking for the end of an empty template argument list.

Differential Revision: https://reviews.llvm.org/D52321

llvm-svn: 342752

5 years ago[Hexagon] Avoid functions with exception handling in HexagonConstExtenders
Krzysztof Parzyszek [Fri, 21 Sep 2018 17:40:35 +0000 (17:40 +0000)]
[Hexagon] Avoid functions with exception handling in HexagonConstExtenders

The constant-extender optimization does a form of code motion, which is
complicated in the presence of exception handling.

llvm-svn: 342751

5 years ago[NFC] remove unused variable
JF Bastien [Fri, 21 Sep 2018 17:38:41 +0000 (17:38 +0000)]
[NFC] remove unused variable

It was causing a warning.

llvm-svn: 342750

5 years ago[CUDA] Ignore uncallable functions when we check for usual deallocators.
Artem Belevich [Fri, 21 Sep 2018 17:29:33 +0000 (17:29 +0000)]
[CUDA] Ignore uncallable functions when we check for usual deallocators.

Previously clang considered function variants from both sides of
compilation and that resulted in picking up wrong deallocation function.

Differential Revision: https://reviews.llvm.org/D51808

llvm-svn: 342749

5 years agoUpdate release notes.
Rui Ueyama [Fri, 21 Sep 2018 17:13:55 +0000 (17:13 +0000)]
Update release notes.

llvm-svn: 342748

5 years ago[sanitizer] Move __sanitizer_set_death_callback to a more appropriate file
Kostya Kortchinsky [Fri, 21 Sep 2018 17:05:56 +0000 (17:05 +0000)]
[sanitizer] Move __sanitizer_set_death_callback to a more appropriate file

Summary:
`__sanitizer_set_death_callback` is a public interface function wrapping
`SetUserDieCallback`. Said function is defined in `sanitizer_termination.cc`,
which is not included in all the RT. Moving the interface function to that
file allows to not have a spurious public fuinction in RT that don't use it.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: kubamracek, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D52363

llvm-svn: 342747

5 years agoAlign AArch64 and i386 image base to superpage
Dimitry Andric [Fri, 21 Sep 2018 16:58:13 +0000 (16:58 +0000)]
Align AArch64 and i386 image base to superpage

Summary:

As for x86_64, the default image base for AArch64 and i386 should be
aligned to a superpage appropriate for the architecture.

On AArch64, this is 2 MiB, on i386 it is 4 MiB.

Reviewers: emaste, grimar, javed.absar, espindola, ruiu, peter.smith, srhines, rprichard

Reviewed By: ruiu, peter.smith

Subscribers: jfb, markj, arichardson, krytarowski, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D50297

llvm-svn: 342746

5 years ago[XRay][compiler-rt] Update use of internal_mmap
Dean Michael Berris [Fri, 21 Sep 2018 16:34:42 +0000 (16:34 +0000)]
[XRay][compiler-rt] Update use of internal_mmap

Summary:
The implementation of `internal_mmap(...)` deviates from the contract of
`mmap(...)` -- i.e. error returns are actually the equivalent of `errno`
results. We update how XRay uses `internal_mmap(...)` to better handle
these error conditions.

In the process, we change the default pointers we're using from `char*`
to `uint8_t*` to prevent potential usage of the pointers in the string
library functions that expect to operate on `char*`.

We also take the chance to "promote" sizes of individual `internal_mmap`
requests to at least page size bytes, consistent with the expectations
of calls to `mmap`.

Reviewers: cryptoad, mboerger

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D52361

llvm-svn: 342745

5 years ago[tblgen] Fix undefined behaviour when assigning integers to large bits<n>'s
Daniel Sanders [Fri, 21 Sep 2018 16:32:49 +0000 (16:32 +0000)]
[tblgen] Fix undefined behaviour when assigning integers to large bits<n>'s

This code:
  bits<96> X = 0;
was triggering undefined behaviour since it iterates over bits 0..95 and tests
them against the IntInit using 1LL << I.

This patch resolves the undefined behaviour by continuing to treat the IntInit
as a 64-bit value and simply causing all bit tests in excess of 64-bits to report
false. As a result,
  bits<96> X = -1;
will be equivalent to:
  bits<96> X;
  let X{0-63} = -1;
  let X{64-95} = 0;

llvm-svn: 342744

5 years agorevert changes from r342722
Sameer Sahasrabuddhe [Fri, 21 Sep 2018 16:31:51 +0000 (16:31 +0000)]
revert changes from r342722

"[AMDGPU] lower-switch in preISel as a workaround for legacy DA"

This broke regression tests. The first breakage was noticed here:
http://lab.llvm.org:8011/builders/lld-x86_64-freebsd/builds/23549

llvm-svn: 342743

5 years agoAArch64FastISel: Abort if we failed to select operand of intrinsic
Matthias Braun [Fri, 21 Sep 2018 15:47:41 +0000 (15:47 +0000)]
AArch64FastISel: Abort if we failed to select operand of intrinsic

rdar://44642447

Differential Revision: https://reviews.llvm.org/D52335

llvm-svn: 342742

5 years ago[OPENMP] Disable emission of the class with vptr if they are not used in
Alexey Bataev [Fri, 21 Sep 2018 14:55:26 +0000 (14:55 +0000)]
[OPENMP] Disable emission of the class with vptr if they are not used in
target constructs.

Prevent compilation of the classes with the virtual tables when
compiling for the device.

llvm-svn: 342741

5 years ago[InstCombine] add tests for extractelement; NFC
Sanjay Patel [Fri, 21 Sep 2018 14:43:49 +0000 (14:43 +0000)]
[InstCombine] add tests for extractelement; NFC

There are folds under visitExtractElementInst() that don't appear
to have any test coverage, so adding a few basic cases here.

llvm-svn: 342740

5 years ago[ADT] restrict bit_cast to trivially-constructible To
JF Bastien [Fri, 21 Sep 2018 14:31:25 +0000 (14:31 +0000)]
[ADT] restrict bit_cast to trivially-constructible To

Summary: As discussed in r341853 by blaikie, the reinterpret_cast was technically an aliasing violation. Restrict our bit_cast implementation to To which are trivially-constructible (and note the existing restriction to constexpr). Once we move to C++17 we can use a version of bit_cast without these restrictions, or if we care we can SFINAE a different implementation when To isn't trivially-constructible.

Originally landed in r342710 and reverted in r342711 because is_trivially_copyable is only in GCC 5.1 and later.

Reviewers: dblaikie, rsmith

Subscribers: dexonsmith, kristina, llvm-commits

Differential Revision: https://reviews.llvm.org/D52332

llvm-svn: 342739

5 years ago[OPENMP][NVPTX] Enable support for lastprivates in SPMD constructs.
Alexey Bataev [Fri, 21 Sep 2018 14:22:53 +0000 (14:22 +0000)]
[OPENMP][NVPTX] Enable support for lastprivates in SPMD constructs.

Previously we could not use lastprivates in SPMD constructs, patch
allows supporting lastprivates in SPMD with uninitialized runtime.

llvm-svn: 342738

5 years ago[OPENMP][NVPTX] Add support for lastprivates/reductions handling in SPMD constructs...
Alexey Bataev [Fri, 21 Sep 2018 14:11:41 +0000 (14:11 +0000)]
[OPENMP][NVPTX] Add support for lastprivates/reductions handling in SPMD constructs with lightweight runtime.

Summary:
We need the support for per-team shared variables to support codegen for
lastprivates/reductions. Patch adds this support by using shared memory
if the total size of the reductions/lastprivates is <= 128 bytes,
then  pre-allocated buffer in global memory if size is <= 4K bytes,or
uses malloc/free, otherwise.

Reviewers: gtbercea, kkwli0, grokos

Subscribers: guansong, openmp-commits

Differential Revision: https://reviews.llvm.org/D51875

llvm-svn: 342737

5 years ago[X86][Sched] Add zero idiom sched data to the SNB model.
Clement Courbet [Fri, 21 Sep 2018 14:07:20 +0000 (14:07 +0000)]
[X86][Sched] Add zero idiom sched data to the SNB model.

Summary:
On SNB, renamer-based zeroing does not work for:
 - 16 and 8-bit GPRs[1].
 - MMX [2].
 - ANDN variants [3]

[1] echo 'sub %ax, %ax' | /tmp/llvm-exegesis -mode=uops -snippets-file=-
[2] echo 'pxor %mm0, %mm0' | /tmp/llvm-exegesis -mode=uops -snippets-file=-
[3] echo 'andnps %xmm0, %xmm0' | /tmp/llvm-exegesis -mode=uops -snippets-file=-

Reviewers: RKSimon, andreadb

Subscribers: gbedwell, craig.topper, llvm-commits

Differential Revision: https://reviews.llvm.org/D52358

llvm-svn: 342736

5 years ago[AST][NFC] DeclarationName.h : add missing parentheses to silence warnings
Bruno Ricci [Fri, 21 Sep 2018 14:03:32 +0000 (14:03 +0000)]
[AST][NFC] DeclarationName.h : add missing parentheses to silence warnings

Some bots are complaining about missing parentheses in assertions added in
r342729: [AST] Various optimizations + refactoring in DeclarationName(Table)

llvm-svn: 342735

5 years agoNFC: deduplicate isRepeatedBytePattern from clang to LLVM's isBytewiseValue
JF Bastien [Fri, 21 Sep 2018 13:54:09 +0000 (13:54 +0000)]
NFC: deduplicate isRepeatedBytePattern from clang to LLVM's isBytewiseValue

Summary:
This code was in CGDecl.cpp and really belongs in LLVM. It happened to have isBytewiseValue which served a very similar purpose but wasn't as powerful as clang's version. Remove the clang version, and augment isBytewiseValue to be as powerful so that clang does the same thing it used to.

LLVM part of this patch: D51751

Subscribers: dexonsmith, cfe-commits

Differential Revision: https://reviews.llvm.org/D51752

llvm-svn: 342734

5 years agoAdd dependency on llc required by find-variable-dwo test
Tatyana Krasnukha [Fri, 21 Sep 2018 13:40:22 +0000 (13:40 +0000)]
Add dependency on llc required by find-variable-dwo test

llvm-svn: 342733

5 years agoSkip test if gcc version is less than 7.1 since it doesn't support -gcolumn-info...
Tatyana Krasnukha [Fri, 21 Sep 2018 13:20:26 +0000 (13:20 +0000)]
Skip test if gcc version is less than 7.1 since it doesn't support -gcolumn-info option

llvm-svn: 342732

5 years ago[AST][NFC] Remove a superfluous enum in ObjCMethodDeclBitfields added in r338641
Bruno Ricci [Fri, 21 Sep 2018 13:11:39 +0000 (13:11 +0000)]
[AST][NFC] Remove a superfluous enum in ObjCMethodDeclBitfields added in r338641

I originally added this enum to avoid including Basic/IdentifierTable.h
in AST/DeclBase.h. However I did not realise it is already included
transitively by AST/DeclarationName.h. Therefore remove this enum and
explicitly include Basic/IdentifierTable.h

llvm-svn: 342731

5 years ago[clangd] Remember to serialize symbol origin in YAML.
Eric Liu [Fri, 21 Sep 2018 13:04:57 +0000 (13:04 +0000)]
[clangd] Remember to serialize symbol origin in YAML.

llvm-svn: 342730

5 years ago[AST] Various optimizations + refactoring in DeclarationName(Table)
Bruno Ricci [Fri, 21 Sep 2018 12:53:22 +0000 (12:53 +0000)]
[AST] Various optimizations + refactoring in DeclarationName(Table)

Introduce the following optimizations in DeclarationName(Table):

 1. Store common kinds inline in DeclarationName instead of
    DeclarationNameExtra. Currently the kind of C++ constructor, destructor,
    conversion function and overloaded operator names is stored in
    DeclarationNameExtra. Instead store it inline in DeclarationName.
    To do this align IdentifierInfo, CXXSpecialName, DeclarationNameExtra
    and CXXOperatorIdName to 8 bytes so that we can use the lower 3 bits of
    DeclarationName::Ptr. This is already the case on 64 bits archs anyway.
    This also allow us to remove DeclarationNameExtra from CXXSpecialName
    and CXXOperatorIdName, which shave off a pointer from CXXSpecialName.

 2. Synchronize the enumerations DeclarationName::NameKind,
    DeclarationName::StoredNameKind and Selector::IdentifierInfoFlag.
    This makes DeclarationName::getNameKind much more efficient since we can
    replace the switch table by a single comparison and an addition.

 3. Put the overloaded operator names inline in DeclarationNameTable to remove
    an indirection. This increase the size of DeclarationNameTable a little
    bit but this is not important since it is only used in ASTContext, and
    never copied nor moved from. This also get rid of the last dynamic
    allocation in DeclarationNameTable.

Altogether these optimizations cut the run time of parsing all of Boost by
about 0.8%. While we are at it, do the following NFC modifications:

 1. Put the internal classes CXXSpecialName, CXXDeductionGuideNameExtra,
    CXXOperatorIdName, CXXLiteralOperatorIdName and DeclarationNameExtra
    in a namespace detail since these classes are only meant to be used by
    DeclarationName and DeclarationNameTable. Make this more explicit by making
    the members of these classes private and friending DeclarationName(Table).

 2. Make DeclarationName::getFETokenInfo a non-template since every users are
    using it to get a void *. It was supposed to be used with a type to avoid
    a subsequent static_cast.

 3. Change the internal functions DeclarationName::getAs* to castAs* since when
    we use them we already know the correct kind. This has no external impact
    since all of these are private.

Reviewed By: erichkeane, rjmccall

Differential Revision: https://reviews.llvm.org/D52267

llvm-svn: 342729

5 years ago[X86][BtVer2] Fix latency and resource cycles of AVX 256-bit zero-idioms.
Andrea Di Biagio [Fri, 21 Sep 2018 12:43:07 +0000 (12:43 +0000)]
[X86][BtVer2] Fix latency and resource cycles of AVX 256-bit zero-idioms.

This patch introduces a SchedWriteVariant to describe zero-idiom VXORP(S|D)Yrr
and VANDNP(S|D)Yrr.

This is a follow-up of r342555.

On Jaguar, a VXORPSYrr is 2 macro opcodes. Only one opcode is eliminated at
register-renaming stage. The other opcode has to be executed to set the upper
half of the destination YMM.
Same for VANDNP(S|D)Yrr.

Differential Revision: https://reviews.llvm.org/D52347

llvm-svn: 342728

5 years ago[test] Fix Assembler/debug-info.ll
Jonas Devlieghere [Fri, 21 Sep 2018 12:28:44 +0000 (12:28 +0000)]
[test] Fix Assembler/debug-info.ll

Update Assembler/debug-info.ll to contain discriminator.

llvm-svn: 342727

5 years ago[X86] Add scheduling tests for AVX1 256-bit zero-idioms. NFC
Andrea Di Biagio [Fri, 21 Sep 2018 12:22:14 +0000 (12:22 +0000)]
[X86] Add scheduling tests for AVX1 256-bit zero-idioms. NFC

llvm-svn: 342726

5 years agoEnsure that variant part discriminator is read by MetadataLoader
Jonas Devlieghere [Fri, 21 Sep 2018 12:03:14 +0000 (12:03 +0000)]
Ensure that variant part discriminator is read by MetadataLoader

https://reviews.llvm.org/D42082 introduced variant parts to debug info
in LLVM. Subsequent work on the Rust compiler has found a bug in that
patch; namely, there is a path in MetadataLoader that fails to restore
the discriminator.

This patch fixes the bug.

Patch by: Tom Tromey

Differential revision: https://reviews.llvm.org/D52340

llvm-svn: 342725

5 years ago[dsymutil] Suppress CoreFoundation leaks in tests.
Jonas Devlieghere [Fri, 21 Sep 2018 11:55:17 +0000 (11:55 +0000)]
[dsymutil] Suppress CoreFoundation leaks in tests.

This suppresses CoreFoundation originated leaks in the dsymutil tests.
I'm not sure if this is a false positive or not, but either way we don't
have control over it and shouldn't keep the bot red.

http://lab.llvm.org:8080/green/job/clang-stage2-cmake-RgSan/

llvm-svn: 342724

5 years ago[ADT] Hack around GCC 5.4 miscompiling Optional of enum.
Benjamin Kramer [Fri, 21 Sep 2018 11:38:35 +0000 (11:38 +0000)]
[ADT] Hack around GCC 5.4 miscompiling Optional of enum.

I'm still not 100% sure that this is not UB lingering (Optional has UB
and should use std::launder, but we don't have std::launder)

llvm-svn: 342723

5 years ago[AMDGPU] lower-switch in preISel as a workaround for legacy DA
Sameer Sahasrabuddhe [Fri, 21 Sep 2018 11:26:55 +0000 (11:26 +0000)]
[AMDGPU] lower-switch in preISel as a workaround for legacy DA

Summary:
The default target of the switch instruction may sometimes be an
"unreachable" block, when it is guaranteed that one of the cases is
always taken. The dominator tree concludes that such a switch
instruction does not have an immediate post dominator. This confuses
divergence analysis, which is unable to propagate sync dependence to
the targets of the switch instruction.

As a workaround, the AMDGPU target now invokes lower-switch as a
preISel pass. LowerSwitch is designed to handle the unreachable
default target correctly, allowing the divergence analysis to locate
the correct immediate dominator of the now-lowered switch.

Reviewers: arsenm, nhaehnle

Reviewed By: nhaehnle

Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, llvm-commits, simoll

Differential Revision: https://reviews.llvm.org/D52221

llvm-svn: 342722

5 years ago[CodeComplete] Generate completion fix-its for C code as well
Ivan Donchevskii [Fri, 21 Sep 2018 11:23:22 +0000 (11:23 +0000)]
[CodeComplete] Generate completion fix-its for C code as well

Current completion fix-its approach does not provide OtherOpBase for C code.
But we can easily proceed in this case taking the original Base type.

Differential Revision: https://reviews.llvm.org/D52261

llvm-svn: 342721

5 years ago[libfuzzer] Fix a test's run line
Jeremy Morse [Fri, 21 Sep 2018 10:50:15 +0000 (10:50 +0000)]
[libfuzzer] Fix a test's run line

r342698 removed the 'UNSUPPORTED: windows' flags from a number of fuzzer
tests, however too many lines were removed from 'fuzzer-flags.test',
including the run-line that generates the test binary, which breaks that
test for me (and the clang-x64-ninja-win7 buildbot). This patch just
re-adds that line.

llvm-svn: 342720

5 years ago [AMDGPU] Divergence driven instruction selection. Part 1.
Alexander Timofeev [Fri, 21 Sep 2018 10:31:22 +0000 (10:31 +0000)]
[AMDGPU] Divergence driven instruction selection. Part 1.

    Summary: This change is the first part of the AMDGPU target description
    change. The aim of it is the effective splitting the vector and scalar
    flows at the selection stage. Selection uses predicate functions based
    on the framework implemented earlier - https://reviews.llvm.org/D35267

    Differential revision: https://reviews.llvm.org/D52019

    Reviewers: rampitec

llvm-svn: 342719

5 years ago[profile] Fix the tests for patch in https://reviews.llvm.org/D49916.
Calixte Denizet [Fri, 21 Sep 2018 09:17:14 +0000 (09:17 +0000)]
[profile] Fix the tests for patch in https://reviews.llvm.org/D49916.

Summary:
The goal of D49916 is to remove some hit counters from lines like '}'.
So as a consequence, the tests must be fixed.
FYI, after holidays, I'll add more tests.

Reviewers: marco-c, davidxl

Reviewed By: marco-c

Subscribers: delcypher, llvm-commits, #sanitizers, sylvestre.ledru

Differential Revision: https://reviews.llvm.org/D49917

llvm-svn: 342718

5 years ago[CodeGen] Add to emitted DebugLoc information about coverage when it's required
Calixte Denizet [Fri, 21 Sep 2018 09:17:06 +0000 (09:17 +0000)]
[CodeGen] Add to emitted DebugLoc information about coverage when it's required

Summary:
Some lines have a hit counter where they should not have one.
Cleanup stuff is located to the last line of the body which is most of the time a '}'.
And Exception stuff is added at the beginning of a function and at the end (represented by '{' and '}').
So in such cases, the DebugLoc used in GCOVProfiling.cpp must be marked as not covered.
This patch is a followup of https://reviews.llvm.org/D49915.
Tests in projects/compiler_rt are fixed by: https://reviews.llvm.org/D49917

Reviewers: marco-c, davidxl

Reviewed By: marco-c

Subscribers: dblaikie, cfe-commits, sylvestre.ledru

Differential Revision: https://reviews.llvm.org/D49916

llvm-svn: 342717

5 years agofix the scan-build urls
Sylvestre Ledru [Fri, 21 Sep 2018 09:07:58 +0000 (09:07 +0000)]
fix the scan-build urls

llvm-svn: 342716

5 years ago[XRay][clang] Propagate -fxray-instrumentation-bundle to -cc1
Dean Michael Berris [Fri, 21 Sep 2018 08:32:49 +0000 (08:32 +0000)]
[XRay][clang] Propagate -fxray-instrumentation-bundle to -cc1

Summary:
Add a test and ensure that we propagate the
-fxray-instrumentation-bundle flag from the driver invocation to the
-cc1 options.

Reviewers: mboerger, tejohnson

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52342

llvm-svn: 342715

5 years ago[dwarfdump] Verify DW_AT_type is set and points to a compatible DIE.
Jonas Devlieghere [Fri, 21 Sep 2018 07:50:21 +0000 (07:50 +0000)]
[dwarfdump] Verify DW_AT_type is set and points to a compatible DIE.

This extends the verifier to catch three new errors:

  * Missing DW_AT_type attributes for DW_TAG_formal_parameter,
    DW_TAG_variable and DW_TAG_array_type.

  * Valid references for DW_AT_type pointing to a non-type tag.

Differential revision: https://reviews.llvm.org/D52223

llvm-svn: 342713

5 years ago[dwarfdump] Verify compatibility of attribute TAGs.
Jonas Devlieghere [Fri, 21 Sep 2018 07:49:29 +0000 (07:49 +0000)]
[dwarfdump] Verify compatibility of attribute TAGs.

Verify that DW_AT_specification and DW_AT_abstract_origin reference a
DIE with a compatible tag.

Differential revision: https://reviews.llvm.org/D38719

llvm-svn: 342712