platform/upstream/llvm.git
5 years ago[ELF][test] Restore linkerscript/symbol-location.s to test getLinkerScriptLocation()
Fangrui Song [Fri, 31 May 2019 08:20:43 +0000 (08:20 +0000)]
[ELF][test] Restore linkerscript/symbol-location.s to test getLinkerScriptLocation()

The test (the only test that checks getLinkerScriptLocation()) deleted
by r358652 can be restored by replacing R_X86_64_PLT32 with
R_X86_64_PC32, and changing -pie to -shared (preemptable). Then, the
symbol will not be a link-time constant and a -fPIC error will be
issued.

llvm-svn: 362207

5 years ago[mips] Move initGlobalBaseReg to MipsFunctionInfo. NFC
Petar Avramovic [Fri, 31 May 2019 08:15:28 +0000 (08:15 +0000)]
[mips] Move initGlobalBaseReg to MipsFunctionInfo. NFC

Move initGlobalBaseReg from MipsSEDAGToDAGISel to MipsFunctionInfo.
This way functions used for handling position independent code during
instruction selection, getGlobalBaseReg and initGlobalBaseReg,
end up in same class.

Differential Revision: https://reviews.llvm.org/D62586

llvm-svn: 362206

5 years ago[InstructionSimplify] Add missing implementation of llvm::SimplifyUnOp. NFC
Craig Topper [Fri, 31 May 2019 08:10:23 +0000 (08:10 +0000)]
[InstructionSimplify] Add missing implementation of llvm::SimplifyUnOp. NFC

There are no callers currently, but the function is declared so we should at
least implement it.

llvm-svn: 362205

5 years ago[MIPS GlobalISel] Lower call for callee that is register
Petar Avramovic [Fri, 31 May 2019 08:06:17 +0000 (08:06 +0000)]
[MIPS GlobalISel] Lower call for callee that is register

Lower call for callee that is register for MIPS32.
Register should contain callee function address.

Differential Revision: https://reviews.llvm.org/D62585

llvm-svn: 362204

5 years ago[X86] Remove patterns for X86VSintToFP/X86VUintToFP+loadv4f32 to v2f64.
Craig Topper [Fri, 31 May 2019 07:38:26 +0000 (07:38 +0000)]
[X86] Remove patterns for X86VSintToFP/X86VUintToFP+loadv4f32 to v2f64.

These patterns can incorrectly narrow a volatile load from 128-bits to 64-bits.
Similar to PR42079.

Switch to using (v4i32 (bitcast (v2i64 (scalar_to_vector (loadi64))))) as the
load pattern used in the instructions.

This probably still has issues in 32-bit mode where loadi64 isn't legal. Maybe
we should use VZMOVL for widened loads even when we don't need the upper bits
as zeroes?

llvm-svn: 362203

5 years ago[X86] Add test cases for failure to use 128-bit masked vcvtdq2pd when load starts...
Craig Topper [Fri, 31 May 2019 07:38:22 +0000 (07:38 +0000)]
[X86] Add test cases for failure to use 128-bit masked vcvtdq2pd when load starts as v2i32.

llvm-svn: 362202

5 years ago[X86] Add test cases for a volatile load shrinking bug involving cvtdq2pd. NFC
Craig Topper [Fri, 31 May 2019 07:38:18 +0000 (07:38 +0000)]
[X86] Add test cases for a volatile load shrinking bug involving cvtdq2pd. NFC

Similar to PR42079

llvm-svn: 362201

5 years ago[X86] Copy a test case from avx512-cvt.ll to avx512-cvt-widen.ll. NFC
Craig Topper [Fri, 31 May 2019 07:38:14 +0000 (07:38 +0000)]
[X86] Copy a test case from avx512-cvt.ll to avx512-cvt-widen.ll. NFC

llvm-svn: 362200

5 years ago[X86] Remove avx512 isel patterns for fpextend+load. Prefer to only match fp extloads...
Craig Topper [Fri, 31 May 2019 06:21:53 +0000 (06:21 +0000)]
[X86] Remove avx512 isel patterns for fpextend+load. Prefer to only match fp extloads instead.

DAG combine will usually fold fpextend+load to an fp extload anyway. So the
256 and 512 patterns were probably unnecessary. The 128 bit pattern was special
in that it looked for a v4f32 load, but then used it in an instruction that
only loads 64-bits. This is bad if the load happens to be volatile. We could
probably make the patterns volatile aware, but that's more work for something
that's probably rare. The peephole pass might kick in and save us anyway. We
might also be able to fix this with some additional DAG combines.

This also adds patterns for vselect+extload to enabled masked vcvtps2pd to be
used. Previously we looked for the unlikely vselect+fpextend+load.

llvm-svn: 362199

5 years ago[X86] Add test to show missed opportunity to use masked vcvtps2pd for vselect+extload.
Craig Topper [Fri, 31 May 2019 06:21:49 +0000 (06:21 +0000)]
[X86] Add test to show missed opportunity to use masked vcvtps2pd for vselect+extload.

llvm-svn: 362198

5 years ago[X86] Add test case for PR42079. NFC
Craig Topper [Fri, 31 May 2019 06:21:45 +0000 (06:21 +0000)]
[X86] Add test case for PR42079. NFC

llvm-svn: 362197

5 years ago[X86] Add VP2INTERSECT instructions
Pengfei Wang [Fri, 31 May 2019 06:09:35 +0000 (06:09 +0000)]
[X86] Add VP2INTERSECT instructions

Support intel AVX512 VP2INTERSECT instructions in clang

Patch by Xiang Zhang (xiangzhangllvm)

Differential Revision: https://reviews.llvm.org/D62367

llvm-svn: 362196

5 years ago[MIR-Canon] Skip the first N vreg names lazily.
Puyan Lotfi [Fri, 31 May 2019 06:02:38 +0000 (06:02 +0000)]
[MIR-Canon] Skip the first N vreg names lazily.

This consolidates the vreg skip code into one function (SkipVRegs()).
SkipVRegs() now knows if it should skip as if it is the first initialization or
subsequent skips.

The first skip is also done the first time createVirtualRegister is called by
the cursor instead of by the cursor's constructor. This prevents verifier
errors on machine functions that have no vregs (where the verifier will
complain that there are vregs when the function uses none).

Differential Revision: https://reviews.llvm.org/D62717

llvm-svn: 362195

5 years agoFix problem with r362192
Richard Trieu [Fri, 31 May 2019 05:55:07 +0000 (05:55 +0000)]
Fix problem with r362192

The string returned only sometimes ends in NULL.  Explicitly check for the NULL
and pop off the NULL if it is there.

llvm-svn: 362194

5 years ago[X86] Correct the ins operand order for MASKPAIR16STORE to match other store instruct...
Craig Topper [Fri, 31 May 2019 05:20:27 +0000 (05:20 +0000)]
[X86] Correct the ins operand order for MASKPAIR16STORE to match other store instructions.

This makes the 5 address operands come first. And the data operand comes last.

This matches the operand order the instruction is created with. It's also the
expected order in X86MCInstLower. So everything appeared to work, but the
operands didn't match their declared type.

Fixes a -verify-machineinstrs failure.

Also remove the isel patterns from these instructions since they should only
be used for stack spills and reloads. I'm not even sure what types the patterns
were looking for to match.

llvm-svn: 362193

5 years agoFix off-by-one error.
Richard Trieu [Fri, 31 May 2019 05:06:54 +0000 (05:06 +0000)]
Fix off-by-one error.

The created string is one char too large, so it pulls the terminating NULL as
the last character of the string.  This later causes SocketTest.cpp to fail.

llvm-svn: 362192

5 years ago[MIR-Canon] Hardening propagateLocalCopies.
Puyan Lotfi [Fri, 31 May 2019 04:49:58 +0000 (04:49 +0000)]
[MIR-Canon] Hardening propagateLocalCopies.

This is am almost NFC, it does the following:
- If there is no register class for a COPY's src or dst, bail.
- Fixes uses iterator invalidation bug.

Differential Revision: https://reviews.llvm.org/D62713

llvm-svn: 362191

5 years agore-commit r361928: [PowerPC] [Clang] Port SSE intrinsics to PowerPC
Zi Xuan Wu [Fri, 31 May 2019 04:42:13 +0000 (04:42 +0000)]
re-commit r361928: [PowerPC] [Clang] Port SSE intrinsics to PowerPC

Port xmmintrin.h which include Intel SSE intrinsics implementation to PowerPC platform (using Altivec).

The new headers containing those implemenations are located into a directory named ppc_wrappers
which has higher priority when the platform is PowerPC on Linux. They are mainly developed by Steven Munroe,
with contributions from Paul Clarke, Bill Schmidt, Jinsong Ji and Zixuan Wu.

Patched by: Qiu Chaofan <qiucf@cn.ibm.com>
Reviewed By: Jinsong Ji

Differential Revision: https://reviews.llvm.org/D62121

llvm-svn: 362190

5 years agoFix bad go bindings test.
Richard Trieu [Fri, 31 May 2019 03:45:11 +0000 (03:45 +0000)]
Fix bad go bindings test.

After r362128, the "byval" attribute has a stricter check and will cause an
assertion.  Remove the "byval" test case for now.

llvm-svn: 362189

5 years ago[X86] Add VP2INTERSECT instructions
Pengfei Wang [Fri, 31 May 2019 02:50:41 +0000 (02:50 +0000)]
[X86] Add VP2INTERSECT instructions

Support Intel AVX512 VP2INTERSECT instructions in llvm

Patch by Xiang Zhang (xiangzhangllvm)

Differential Revision: https://reviews.llvm.org/D62366

llvm-svn: 362188

5 years agoRedirect test output to /dev/null
Richard Trieu [Fri, 31 May 2019 02:23:33 +0000 (02:23 +0000)]
Redirect test output to /dev/null

llvm-svn: 362187

5 years agoRevert "[X86] Fix i386 struct and union parameter alignment"
Pengfei Wang [Fri, 31 May 2019 01:50:07 +0000 (01:50 +0000)]
Revert "[X86] Fix i386 struct and union parameter alignment"

This reverts commit d61cb749f4ac2c90244906d756e80a5c4a7ffa89 (SVN:
361934).

According to James suggestion, revert this change. Please ref:
https://reviews.llvm.org/D60748

llvm-svn: 362186

5 years ago[CMake] Provide an option to use relative paths in debug info
Petr Hosek [Fri, 31 May 2019 01:34:51 +0000 (01:34 +0000)]
[CMake] Provide an option to use relative paths in debug info

CMake always uses absolute file paths in the generated compiler
invocation which results in absolute file paths being embedded in debug
info. This is undesirable when building a toolchain e.g. on bots as the
debug info may embed the bot source checkout path which is meaningless
anywhere else.

This change introduces the LLVM_USE_RELATIVE_PATHS_IN_DEBUG_INFO which uses
-fdebug-prefix-map (where supported) options to rewrite paths embedded
into debug info with relative ones. Additionally, LLVM_SOURCE_PREFIX can
be used to override the path to source directory with a different one.

Differential Revision: https://reviews.llvm.org/D62622

llvm-svn: 362185

5 years agoPR39728: When completing a class, complete the destructor first.
Richard Smith [Fri, 31 May 2019 01:25:16 +0000 (01:25 +0000)]
PR39728: When completing a class, complete the destructor first.

We need to know whether the destructor is trivial in order to tell
whether other parts of the class are valid (in particular, this affects
whether the type is a literal type, which affects whether defaulted
special members can be declared constexpr or are implicitly constexpr).

llvm-svn: 362184

5 years agoFix the predefined exponent limit macros for the 16-bit IEEE format.
John McCall [Fri, 31 May 2019 01:21:36 +0000 (01:21 +0000)]
Fix the predefined exponent limit macros for the 16-bit IEEE format.

The magnitude range of normalized _Float16 is 2^-14 (~6e-5) to
(2-2^-10)*2^15 (65504).  You might think, then, that the code is
correct to defne FLT16_MIN_EXP and FLT16_MAX_EXP to be -14 and 15
respectively.  However, for some reason the C specification actually
specifies a bias for these macros:

C11 5.2.4.2.2:

  - minimum negative integer such that FLT_RADIX raised to one less than
    that power is a normalized floating-point number, e_min:
      FLT_MIN_EXP
      DBL_MIN_EXP
      LDBL_MIN_EXP

  - maximum integer such that FLT_RADIX raised to one less than that
    power is a representable finite floating-point number, e_max:
      FLT_MAX_EXP
      DBL_MAX_EXP
      LDBL_MAX_EXP

FLT16_MIN_EXP and FLT16_MAX_EXP should clearly be biased the same way,
and other compilers do in fact do so, as do our OpenCL headers for `half`.

Additionally, FLT16_MIN_10_EXP is just wrong.

llvm-svn: 362183

5 years agoDefer building 'this' captures until we have left the capturing region
Richard Smith [Fri, 31 May 2019 01:17:04 +0000 (01:17 +0000)]
Defer building 'this' captures until we have left the capturing region
and returned to the context in which 'this' should be captured.

This means we now always mark 'this' referenced from the context in
which it's actually referenced, rather than potentially from some
context nested within that.

llvm-svn: 362182

5 years ago[CMake][Fuchsia] Use libc++ ABI v2 on Darwin as well
Petr Hosek [Fri, 31 May 2019 01:16:43 +0000 (01:16 +0000)]
[CMake][Fuchsia] Use libc++ ABI v2 on Darwin as well

Since we share headers between host and target builds, we need to use
the same version for both.

Differential Revision: https://reviews.llvm.org/D62712

llvm-svn: 362181

5 years agoFix -DBUILD_SHARED_LIBS=ON build after rL362160
Sam Clegg [Fri, 31 May 2019 01:04:00 +0000 (01:04 +0000)]
Fix -DBUILD_SHARED_LIBS=ON build after rL362160

Differential Revision: https://reviews.llvm.org/D62709

llvm-svn: 362180

5 years agoDefer capture initialization for captured regions until after we've left
Richard Smith [Fri, 31 May 2019 00:45:10 +0000 (00:45 +0000)]
Defer capture initialization for captured regions until after we've left
the captured region scope.

This removes a case where we would build expressions (and mark
declarations odr-used) in the wrong scope.

Remove the now-unused 'capture initializer' field on sema::Capture
(except for 'this' captures, which still need to be cleaned up).

No functionality change intended (except that we now very slightly more
precisely determine whether we need to use a capture or not when another
captured region encloses an OpenMP captured region).

llvm-svn: 362179

5 years agoDefer capture initialization for blocks until after we've left the
Richard Smith [Fri, 31 May 2019 00:45:09 +0000 (00:45 +0000)]
Defer capture initialization for blocks until after we've left the
function scope.

This removes one of the last few cases where we build expressions in the
wrong function scope context. No functionality change intended.

llvm-svn: 362178

5 years agoMake CPlusPlusNameParser robust against nullptr StringRefs.
Adrian Prantl [Fri, 31 May 2019 00:18:42 +0000 (00:18 +0000)]
Make CPlusPlusNameParser robust against nullptr StringRefs.

There is likely also an underlying bug in all code that calls
CPlusPlusNameParser with nullptrs, but this patch can also stand for
itself.

rdar://problem/49072829

llvm-svn: 362177

5 years ago[clangd] clang-format SymbolCollector.cpp
Nathan Ridge [Thu, 30 May 2019 23:54:43 +0000 (23:54 +0000)]
[clangd] clang-format SymbolCollector.cpp

llvm-svn: 362176

5 years ago[X86] Remove result type constraints from the extloadv2f32/extloadv4f32/extloadv8f32...
Craig Topper [Thu, 30 May 2019 23:35:24 +0000 (23:35 +0000)]
[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

5 years agoMISched: Fix -misched-regpressure=0 if subreg liveness enabled
Matt Arsenault [Thu, 30 May 2019 23:31:36 +0000 (23:31 +0000)]
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

5 years agoMake ConnectionFileDescription work with all sockets
Antonio Afonso [Thu, 30 May 2019 23:30:35 +0000 (23:30 +0000)]
Make ConnectionFileDescription work with all sockets

Summary:
My main goal here is to make lldb-server work with Android Studio.

This is currently not the case because lldb-server is started in platform mode listening on a domain socket. When Android Studio connects to it lldb-server crashes because even though it's listening on a domain socket as soon as it gets a connection it asserts that it's a TCP connection, which will obviously fails for any non-tcp connection.

To do this I came up with a new method called GetConnectURI() in Socket that returns the URI needed to connect to the connected portion of the socket.

Reviewers: labath, clayborg, xiaobai

Reviewed By: labath

Subscribers: mgorny, jfb, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62089

llvm-svn: 362173

5 years agoRefactor OpenMP stack management.
Richard Smith [Thu, 30 May 2019 23:21:14 +0000 (23:21 +0000)]
Refactor OpenMP stack management.

Instead of duplicating access to the directive stack throughout
SemaOpenMP.cpp, consolidate it to a few methods and call those
everywhere else. In passing, simplify adjacent code where possible.

No functionality change intended.

llvm-svn: 362172

5 years agoFix "fallthrough annotation in unreachable code" warning.
Richard Smith [Thu, 30 May 2019 23:21:13 +0000 (23:21 +0000)]
Fix "fallthrough annotation in unreachable code" warning.

llvm-svn: 362171

5 years ago[X86] Remove code that unnecessarily sets EXTLOAD with src type of v2f32/v4f32/v8f32...
Craig Topper [Thu, 30 May 2019 22:29:06 +0000 (22:29 +0000)]
[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

5 years agoSupport codesigning bundles and forcing
Chris Bieneman [Thu, 30 May 2019 22:25:48 +0000 (22:25 +0000)]
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

5 years agoFix test to add missing '|' to regex.
Douglas Yung [Thu, 30 May 2019 22:20:31 +0000 (22:20 +0000)]
Fix test to add missing '|' to regex.

llvm-svn: 362168

5 years agoUpdate the tests in r362121 / r362141 to allow for Windows-specific error
Michael Trent [Thu, 30 May 2019 22:11:29 +0000 (22:11 +0000)]
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

5 years agoAdd enums as global variables in the IR metadata.
Amy Huang [Thu, 30 May 2019 22:04:11 +0000 (22:04 +0000)]
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

5 years ago[Remarks] Fix usage of enum class
Francis Visoiu Mistrih [Thu, 30 May 2019 22:01:56 +0000 (22:01 +0000)]
[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

5 years ago[Target] Generalize language-specific behavior in ThreadPlanStepThrough
Alex Langford [Thu, 30 May 2019 22:00:18 +0000 (22:00 +0000)]
[Target] Generalize language-specific behavior in ThreadPlanStepThrough

Summary:
When creating a ThreadPlan to step through a trampoline, we ask the
ObjC language runtime and the CPP language runtime to come up with such a thread
plan if the dynamic loader fails to give us one. I don't see why this behavior
can't be language agnostic.

Differential Revision: https://reviews.llvm.org/D61921

llvm-svn: 362164

5 years agoAttempt to fix test failure for armv8.
Mitch Phillips [Thu, 30 May 2019 21:58:47 +0000 (21:58 +0000)]
Attempt to fix test failure for armv8.

Looks like armv8 can't handle a thousand threads, which GWP-ASan
requests when running a synchronised mutex test. Limiting this to 100 to
attempt to fix the build issue.

llvm-svn: 362163

5 years ago[WebAssembly] Improve feature validation error messages
Thomas Lively [Thu, 30 May 2019 21:57:23 +0000 (21:57 +0000)]
[WebAssembly] Improve feature validation error messages

Summary:
Add the names of the input files responsible for each error to the
messages.

Reviewers: sbc100, azakai

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62704

llvm-svn: 362162

5 years ago[Remarks][NFC] Move the serialization to lib/Remarks
Francis Visoiu Mistrih [Thu, 30 May 2019 21:45:59 +0000 (21:45 +0000)]
[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

5 years ago[NFC][ARM] Add a test that potentially causes endless combine loop with D62266
Roman Lebedev [Thu, 30 May 2019 21:41:21 +0000 (21:41 +0000)]
[NFC][ARM] Add a test that potentially causes endless combine loop with D62266

llvm-svn: 362159

5 years ago[MIR-Canon] Fixing case where MachineFunction is empty.
Puyan Lotfi [Thu, 30 May 2019 21:37:25 +0000 (21:37 +0000)]
[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

5 years agoFix constexpr __builtin_*_overflow issue when unsigned->signed operand.
Erich Keane [Thu, 30 May 2019 21:35:32 +0000 (21:35 +0000)]
Fix constexpr __builtin_*_overflow issue when unsigned->signed operand.

As reported here https://bugs.llvm.org/show_bug.cgi?id=42000, it was
possible to get the constexpr version of __builtin_*_overflow to give
the wrong answer.

This was because when extending the operands to fit the largest type (so
that the math could be done), the decision on whether to sign/zero
extend the operands was based on the result signedness, not on the
operands signedness.

In the reported case, (unsigned char)255 - (int)100 needed
to have each extended to the int in order to do the math.  However, when
extending the first operand to 'int', we incorrectly sign extended it
instead of zero extending.  Thus, the result didnt fit back into the
unsigned char.

The fix for this was simply to choose zero/sign extension based on the
sign of the operand itself.

Differential Revision: https://reviews.llvm.org/D62665

llvm-svn: 362157

5 years ago[DAGCombine] Limit 'hoist add/sub binop w/ constant op' to non-opaque consts
Roman Lebedev [Thu, 30 May 2019 21:10:37 +0000 (21:10 +0000)]
[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

5 years ago[pstl] Use OpenMP pragmas with Clang, which supports them
Louis Dionne [Thu, 30 May 2019 21:09:19 +0000 (21:09 +0000)]
[pstl] Use OpenMP pragmas with Clang, which supports them

Most importantly, Clang doesn't seem to support the non-OpenMP pragmas
that were being used previously.

llvm-svn: 362155

5 years ago[Target] Generalize Process::IsPossibleDynamicValue
Alex Langford [Thu, 30 May 2019 21:03:53 +0000 (21:03 +0000)]
[Target] Generalize Process::IsPossibleDynamicValue

llvm-svn: 362154

5 years ago[CVP] Add tests for non-overflowing saturating math; NFC
Nikita Popov [Thu, 30 May 2019 21:03:17 +0000 (21:03 +0000)]
[CVP] Add tests for non-overflowing saturating math; NFC

llvm-svn: 362153

5 years ago[CVP] Generalize willNotOverflow(); NFC
Nikita Popov [Thu, 30 May 2019 21:03:10 +0000 (21:03 +0000)]
[CVP] Generalize willNotOverflow(); NFC

Change argument from WithOverflowInst to BinaryOpIntrinsic, so this
function can also be used for saturating math intrinsics.

llvm-svn: 362152

5 years ago[RuntimeDyld] Update reserveAllocationSpace to account for stub padding.
Lang Hames [Thu, 30 May 2019 20:58:28 +0000 (20:58 +0000)]
[RuntimeDyld] Update reserveAllocationSpace to account for stub padding.

This should fix the buildbot failures caused by r362139.

llvm-svn: 362151

5 years ago[InstCombine] Avoid use after free in DenseMap, when built with GCC
Martin Storsjo [Thu, 30 May 2019 20:53:21 +0000 (20:53 +0000)]
[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

5 years agoAttempt to fix 'mutex.h' not found when building mutex_posix.
Mitch Phillips [Thu, 30 May 2019 20:48:05 +0000 (20:48 +0000)]
Attempt to fix 'mutex.h' not found when building mutex_posix.

llvm-svn: 362149

5 years ago[pstl] Remove various warnings in the pstl headers and tests
Louis Dionne [Thu, 30 May 2019 20:46:31 +0000 (20:46 +0000)]
[pstl] Remove various warnings in the pstl headers and tests

- unused parameter warnings
- don't use single-letter template parameter names, like we do in libc++
- sign-comparison warnings
- unused variables in the tests
- unused local typedefs in the tests
- the use of #include_next
- field reordering in the tests
- unused lambda captures

Note that the rationale for why the static_casts to unsigned are OK is
that last - first must always be non-negative, since [first, last) is
a valid range.

llvm-svn: 362148

5 years ago[c++2a] Fix assertion failure if we would walk over more than one level
Richard Smith [Thu, 30 May 2019 20:45:12 +0000 (20:45 +0000)]
[c++2a] Fix assertion failure if we would walk over more than one level
of derived-to-base conversion path when implicitly starting union
subobject lifetimes in constant evaluation.

llvm-svn: 362147

5 years ago[DAGCombiner][X86][AArch64] (x - C) + y -> (x + y) - C fold. Try 2
Roman Lebedev [Thu, 30 May 2019 20:37:49 +0000 (20:37 +0000)]
[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

5 years ago[DAGCombine] (x - C) - y -> (x - y) - C fold. Try 3
Roman Lebedev [Thu, 30 May 2019 20:37:39 +0000 (20:37 +0000)]
[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

5 years ago[DAGCombine][X86][AArch64][AMDGPU] (x - y) + -1 -> add (xor y, -1), x fold. Try 3
Roman Lebedev [Thu, 30 May 2019 20:37:29 +0000 (20:37 +0000)]
[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

5 years ago[DAGCombiner][X86][AArch64][SPARC][SystemZ] y - (x + C) -> (y - x) - C fold. Try 3
Roman Lebedev [Thu, 30 May 2019 20:37:18 +0000 (20:37 +0000)]
[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

5 years ago[DAGCombiner][X86][AArch64][AMDGPU] (x + C) - y -> (x - y) + C fold. Try 3
Roman Lebedev [Thu, 30 May 2019 20:36:54 +0000 (20:36 +0000)]
[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

5 years agoWrite new tests for r362121
Michael Trent [Thu, 30 May 2019 20:09:09 +0000 (20:09 +0000)]
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

5 years agoMark test as requiring an ARM target.
Douglas Yung [Thu, 30 May 2019 20:02:51 +0000 (20:02 +0000)]
Mark test as requiring an ARM target.

llvm-svn: 362140

5 years ago[RuntimeDyld] Apply padding and alignment bumps to all sections with stubs, and
Lang Hames [Thu, 30 May 2019 19:59:20 +0000 (19:59 +0000)]
[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

5 years ago[GWP-ASan] Mutex implementation [2].
Mitch Phillips [Thu, 30 May 2019 19:45:32 +0000 (19:45 +0000)]
[GWP-ASan] Mutex implementation [2].

Summary:
See D60593 for further information.
This patch pulls out the mutex implementation and the required definitions file.

We implement our own mutex for GWP-ASan currently, because:

1. We must be compatible with the sum of the most restrictive elements of the supporting allocator's build system. Current targets for GWP-ASan include Scudo (on Linux and Fuchsia), and bionic (on Android).
2. Scudo specifies `-nostdlib++ -nonodefaultlibs`, meaning we can't use `std::mutex` or `mtx_t`.
3. We can't use `sanitizer_common`'s mutex, as the supporting allocators cannot afford the extra maintenance (Android, Fuchsia) and code size (Fuchsia) overheads that this would incur.

In future, we would like to implement a shared base mutex for GWP-ASan, Scudo and sanitizer_common. This will likely happen when both GWP-ASan and Scudo standalone are not in the development phase, at which point they will have stable requirements.

Reviewers: vlad.tsyrklevich, morehouse, jfb

Reviewed By: morehouse

Subscribers: dexonsmith, srhines, cfe-commits, kubamracek, mgorny, cryptoad, jfb, #sanitizers, llvm-commits, vitalybuka, eugenis

Tags: #sanitizers, #llvm, #clang

Differential Revision: https://reviews.llvm.org/D61923

llvm-svn: 362138

5 years ago[NFC][InstCombine] Add unary FNeg tests to fmul.ll
Cameron McInally [Thu, 30 May 2019 19:42:25 +0000 (19:42 +0000)]
[NFC][InstCombine] Add unary FNeg tests to fmul.ll

llvm-svn: 362137

5 years agoAMDGPU/GlobalISel: Add wave scratch offset argument
Matt Arsenault [Thu, 30 May 2019 19:33:18 +0000 (19:33 +0000)]
AMDGPU/GlobalISel: Add wave scratch offset argument

Avoids crashing in PEI in a future change.

llvm-svn: 362136

5 years ago[DAGCombine] ((c1-A)-c2) -> ((c1-c2)-A) constant-fold
Roman Lebedev [Thu, 30 May 2019 19:27:51 +0000 (19:27 +0000)]
[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

5 years ago[DAGCombine] (A-C1)-C2 -> A-(C1+C2) constant-fold
Roman Lebedev [Thu, 30 May 2019 19:27:42 +0000 (19:27 +0000)]
[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

5 years ago[DAGCombine] (A+C1)-C2 -> A+(C1-C2) constant-fold
Roman Lebedev [Thu, 30 May 2019 19:27:32 +0000 (19:27 +0000)]
[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

5 years ago[DAGCombine] Use FoldConstantArithmetic() to perform C2-(A+C1) -> (C2-C1)-A fold
Roman Lebedev [Thu, 30 May 2019 19:27:26 +0000 (19:27 +0000)]
[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

5 years ago[DAGCombine] ((A-c1)+c2) -> (A+(c2-c1)) constant-fold
Roman Lebedev [Thu, 30 May 2019 19:27:19 +0000 (19:27 +0000)]
[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

5 years ago[DAGCombine] Use FoldConstantArithmetic() to perform ((c1-A)+c2) -> (c1+c2)-A fold
Roman Lebedev [Thu, 30 May 2019 19:27:10 +0000 (19:27 +0000)]
[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

5 years agoReapply: LLVM IR: update Clang tests for byval being a typed attribute.
Tim Northover [Thu, 30 May 2019 18:49:19 +0000 (18:49 +0000)]
Reapply: LLVM IR: update Clang tests for byval being a typed attribute.

Since byval is now a typed attribute it gets sorted slightly differently by
LLVM when the order of attributes is being canonicalized. This updates the few
Clang tests that depend on the old order.

Clang patch is unchanged.

llvm-svn: 362129

5 years agoReapply: IR: add optional type to 'byval' function parameters
Tim Northover [Thu, 30 May 2019 18:48:23 +0000 (18:48 +0000)]
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

5 years ago[AMDGPU] Added target-specific attribute amdgpu-max-memory-clause
Tim Renouf [Thu, 30 May 2019 18:46:34 +0000 (18:46 +0000)]
[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

5 years ago[LV] Remove the redundant using LoopVectorizationPlanner:VPlanPtr
Florian Hahn [Thu, 30 May 2019 18:46:13 +0000 (18:46 +0000)]
[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

5 years agoFix OMP_TARGET_OFFLOAD parsing
Hansang Bae [Thu, 30 May 2019 18:35:07 +0000 (18:35 +0000)]
Fix OMP_TARGET_OFFLOAD parsing

Current parsing allows trailing string after the permitted value,
MANDATORY|DISABLED|DEFAULT -- e.g., "mandatorynot" is also recognized
as "MANDATORY". Such cases should be recognized as incorrect/unknown
value.

Differential Revision: https://reviews.llvm.org/D62431

llvm-svn: 362125

5 years ago[LoopVectorize] Add FNeg instruction support
Craig Topper [Thu, 30 May 2019 18:19:35 +0000 (18:19 +0000)]
[LoopVectorize] Add FNeg instruction support

Differential Revision: https://reviews.llvm.org/D62510

llvm-svn: 362124

5 years agoReverting change r362121 due to lld-x86_64-ubuntu-fast test failures
Michael Trent [Thu, 30 May 2019 18:17:10 +0000 (18:17 +0000)]
Reverting change r362121 due to lld-x86_64-ubuntu-fast test failures

llvm-svn: 362123

5 years ago[MIR-Canon] Add support for rewriting VRegs that are typed but don't have an RC.
Puyan Lotfi [Thu, 30 May 2019 18:06:28 +0000 (18:06 +0000)]
[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

5 years agoSupport Universal dSYM files in llvm-objdump
Michael Trent [Thu, 30 May 2019 17:56:05 +0000 (17:56 +0000)]
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

5 years ago[NFC] Fix SmallVector::append comments
Jan Korous [Thu, 30 May 2019 17:54:26 +0000 (17:54 +0000)]
[NFC] Fix SmallVector::append comments

Fix the copy-pasted comment.
Remove low-value comments.

llvm-svn: 362120

5 years agoAdd Attribute NoThrow as an Exception Specifier Type
Erich Keane [Thu, 30 May 2019 17:31:54 +0000 (17:31 +0000)]
Add Attribute NoThrow as an Exception Specifier Type

In response to https://bugs.llvm.org/show_bug.cgi?id=33235, it became
clear that the current mechanism of hacking through checks for the
exception specification of a function gets confused really quickly when
there are alternate exception specifiers.

This patch introcues EST_NoThrow, which is the equivilent of
EST_noexcept when caused by EST_noThrow. The existing implementation is
left in place to cover functions with no FunctionProtoType.

Differential Revision: https://reviews.llvm.org/D62435

llvm-svn: 362119

5 years agoCorrect error in revert of r362112.
Kevin P. Neal [Thu, 30 May 2019 17:21:45 +0000 (17:21 +0000)]
Correct error in revert of r362112.

Differential Revision: http://reviews.llvm.org/D62546

llvm-svn: 362118

5 years agoRevert r362112, it broke the bots with the message "Unsupported vector argument or...
Kevin P. Neal [Thu, 30 May 2019 17:10:21 +0000 (17:10 +0000)]
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

5 years agoCode and comment cleanups [NFC]
Greg Clayton [Thu, 30 May 2019 17:03:35 +0000 (17:03 +0000)]
Code and comment cleanups [NFC]

Changes:
- update comments to detail the info can come from .debug_info or .debug_types
- Rename "debug_info_data" to "data" now that we can get data from .debug_info or .debug_types.
- Also call DWARFDebugInfoEntry::GetAbbreviationDeclarationPtr(...) instead of manually grabbing abbreviation.

llvm-svn: 362116

5 years ago[libcxx] Add regex test cases from PR40904
Louis Dionne [Thu, 30 May 2019 16:53:05 +0000 (16:53 +0000)]
[libcxx] Add regex test cases from PR40904

llvm-svn: 362115

5 years ago[NFC][Codegen] Potential add/sub constant folding: fixup non-splat tests
Roman Lebedev [Thu, 30 May 2019 16:50:43 +0000 (16:50 +0000)]
[NFC][Codegen] Potential add/sub constant folding: fixup non-splat tests

llvm-svn: 362114

5 years ago[Docs] Modernize references to macOS
J. Ryan Stinnett [Thu, 30 May 2019 16:46:22 +0000 (16:46 +0000)]
[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

5 years ago[FPEnv] Added a special UnrollVectorOp method to deal with the chain on StrictFP...
Kevin P. Neal [Thu, 30 May 2019 16:44:47 +0000 (16:44 +0000)]
[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

5 years agoAdd checks before pointer dereferencing
Hansang Bae [Thu, 30 May 2019 16:32:20 +0000 (16:32 +0000)]
Add checks before pointer dereferencing

This change adds checks before dereferencing a pointer returned from a
function.

Differential Revision: https://reviews.llvm.org/D62224

llvm-svn: 362111

5 years ago[NFC][Codegen] Add better test coverage for potential add/sub constant folding
Roman Lebedev [Thu, 30 May 2019 16:07:19 +0000 (16:07 +0000)]
[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

5 years ago[DAGCombine] Revert of recommit of "binop-with-const hoisting" patches
Roman Lebedev [Thu, 30 May 2019 16:07:11 +0000 (16:07 +0000)]
[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

5 years ago[ELF] Delete dead SHT_NOBITS->SHT_PROGBITS code after r358981
Fangrui Song [Thu, 30 May 2019 15:52:11 +0000 (15:52 +0000)]
[ELF] Delete dead SHT_NOBITS->SHT_PROGBITS code after r358981

After D60131/r358981, we no longer create SHT_NOBITS sections that may
contain ByteCommand (BYTE, SHORT, LONG, QUAD).

llvm-svn: 362108

5 years agoRemove length modifier when using assignment suppression in TimerTest
Antonio Afonso [Thu, 30 May 2019 15:38:05 +0000 (15:38 +0000)]
Remove length modifier when using assignment suppression in TimerTest

Summary:
This is useless and it's giving warnings in the build bots:
/home/motus/netbsd8/netbsd8/llvm/tools/lldb/unittests/Utility/TimerTest.cpp:67:43: warning: use of assignment suppression and length modifier together in gnu_scanf format [-Wformat=]

Reviewers: xiaobai

Subscribers: krytarowski, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62626

llvm-svn: 362107