platform/upstream/llvm.git
5 years ago[MC] Support labels as offsets in .reloc directive
Vladimir Stefanovic [Wed, 21 Nov 2018 16:28:39 +0000 (16:28 +0000)]
[MC] Support labels as offsets in .reloc directive

Currently, expressions like

  .reloc 1f, R_MIPS_JALR, foo
  1: nop

are not allowed, ie. an offset in .reloc can only be absolute value.
This patch adds support for labels as offsets.
If offset is a forward declared label, MCObjectStreamer keeps the fixup locally
and adds it to the fixups vector after the label (and its offset) is defined.
label+number is not supported yet.

Differential revision: https://reviews.llvm.org/D53990

llvm-svn: 347397

5 years ago[NFC][libcxx] Add revision number to ABI changelog
Louis Dionne [Wed, 21 Nov 2018 16:27:14 +0000 (16:27 +0000)]
[NFC][libcxx] Add revision number to ABI changelog

llvm-svn: 347396

5 years ago[libcxx] Make sure we can build with -fvisibility=hidden on Linux
Louis Dionne [Wed, 21 Nov 2018 16:24:46 +0000 (16:24 +0000)]
[libcxx] Make sure we can build with -fvisibility=hidden on Linux

Summary:
This commit marks a few functions as hidden and removes them from the ABI list
on Linux such that libc++ can be built with -fvisibility=hidden. The functions
marked as hidden by this patch were exported from the shared object only
because they were implicitly instantiated function templates. It is safe
to stop exporting those symbols from the shared object because nobody could
actually depend on them: implicit instantiations are not taken from shared
objects.

The symbols removed in this commit are basically the same that had been
removed in https://reviews.llvm.org/D53868, but that patch had to be reverted
because it broke the build (because the functions were not marked as hidden
like this patch does).

Reviewers: EricWF, mclow.lists

Subscribers: christof, jkorous, dexonsmith, libcxx-commits

Differential Revision: https://reviews.llvm.org/D54639

llvm-svn: 347395

5 years ago[x86] add checks for asm to test; NFC
Sanjay Patel [Wed, 21 Nov 2018 15:26:35 +0000 (15:26 +0000)]
[x86] add checks for asm to test; NFC

llvm-svn: 347394

5 years ago[TargetLowering] SimplifyDemandedBits - only reduce known bits for integer constants
Simon Pilgrim [Wed, 21 Nov 2018 14:26:19 +0000 (14:26 +0000)]
[TargetLowering] SimplifyDemandedBits - only reduce known bits for integer constants

Avoids fuzzing crash found by Mikael Holmén.

llvm-svn: 347393

5 years ago[PM] Port Scalarizer to the new pass manager.
Mikael Holmen [Wed, 21 Nov 2018 14:00:17 +0000 (14:00 +0000)]
[PM] Port Scalarizer to the new pass manager.

Patch by: markus (Markus Lavin)

Reviewers: chandlerc, fedor.sergeev

Reviewed By: fedor.sergeev

Subscribers: llvm-commits, Ka-Ka, bjope

Differential Revision: https://reviews.llvm.org/D54695

llvm-svn: 347392

5 years agoRevert 347365, its prerequisite 347364 got reverted.
Nico Weber [Wed, 21 Nov 2018 12:50:13 +0000 (12:50 +0000)]
Revert 347365, its prerequisite 347364 got reverted.

llvm-svn: 347391

5 years agoRevert 347366, its prerequisite 347364 got reverted.
Nico Weber [Wed, 21 Nov 2018 12:49:22 +0000 (12:49 +0000)]
Revert 347366, its prerequisite 347364 got reverted.

llvm-svn: 347390

5 years agoRevert r347364 again, the fix was incomplete.
Nico Weber [Wed, 21 Nov 2018 12:47:43 +0000 (12:47 +0000)]
Revert r347364 again, the fix was incomplete.

llvm-svn: 347389

5 years ago[ARM] Change REQUIRES: ARM to Requires: arm
Peter Smith [Wed, 21 Nov 2018 11:30:03 +0000 (11:30 +0000)]
[ARM] Change REQUIRES: ARM to Requires: arm

When REQUIRES: ARM is used the test is skipped as ARM is not recognized.
Change to REQUIRES: arm so that it is run. This required updating one of the
tests due to changes in expected output.

Differential Revision: https://reviews.llvm.org/D54786

llvm-svn: 347388

5 years ago[nios2] Add missing Nios2CodeGen -> Nios2AsmPrinter linkage
Michal Gorny [Wed, 21 Nov 2018 11:25:01 +0000 (11:25 +0000)]
[nios2] Add missing Nios2CodeGen -> Nios2AsmPrinter linkage

Add missing linkage from Nios2CodeGen library to Nios2AsmPrinter
library.  The missing dependency causes shared-lib build to fail with
the following reason:

  lib/Target/Nios2/CMakeFiles/LLVMNios2CodeGen.dir/Nios2AsmPrinter.cpp.o: In function `(anonymous namespace)::Nios2AsmPrinter::PrintAsmMemoryOperand(llvm::MachineInstr const*, unsigned int, unsigned int, char const*, llvm::raw_ostream&)':
  Nios2AsmPrinter.cpp:(.text._ZN12_GLOBAL__N_115Nios2AsmPrinter21PrintAsmMemoryOperandEPKN4llvm12MachineInstrEjjPKcRNS1_11raw_ostreamE+0x2b): undefined reference to `llvm::Nios2InstPrinter::getRegisterName(unsigned int)'
  lib/Target/Nios2/CMakeFiles/LLVMNios2CodeGen.dir/Nios2AsmPrinter.cpp.o: In function `(anonymous namespace)::Nios2AsmPrinter::PrintAsmOperand(llvm::MachineInstr const*, unsigned int, unsigned int, char const*, llvm::raw_ostream&)':
  Nios2AsmPrinter.cpp:(.text._ZN12_GLOBAL__N_115Nios2AsmPrinter15PrintAsmOperandEPKN4llvm12MachineInstrEjjPKcRNS1_11raw_ostreamE+0x97): undefined reference to `llvm::Nios2InstPrinter::getRegisterName(unsigned int)'
  collect2: error: ld returned 1 exit status

Differential Revision: https://reviews.llvm.org/D47810

llvm-svn: 347387

5 years ago[X86][AVX] Remove BROADCAST if we only need the 0'th element
Simon Pilgrim [Wed, 21 Nov 2018 11:00:09 +0000 (11:00 +0000)]
[X86][AVX] Remove BROADCAST if we only need the 0'th element

We don't catch this with target shuffle simplification if the src/dst types are different.

llvm-svn: 347386

5 years agoTest commit: Delete trailing space in comment
Nikita Popov [Wed, 21 Nov 2018 10:57:22 +0000 (10:57 +0000)]
Test commit: Delete trailing space in comment

llvm-svn: 347385

5 years ago[NFC] More complex tests for LoopSimplifyCFG
Max Kazantsev [Wed, 21 Nov 2018 09:55:09 +0000 (09:55 +0000)]
[NFC] More complex tests for LoopSimplifyCFG

llvm-svn: 347384

5 years agotsan: add pthread_tryjoin_np and pthread_timedjoin_np interceptors
Dmitry Vyukov [Wed, 21 Nov 2018 09:31:21 +0000 (09:31 +0000)]
tsan: add pthread_tryjoin_np and pthread_timedjoin_np interceptors

Add pthread_tryjoin_np() and pthread_timedjoin_np() interceptors on Linux,
so that ThreadSanitizer can handle programs using these functions.

Author: Yuri Per (yuri)
Reviewed in: https://reviews.llvm.org/D54521

llvm-svn: 347383

5 years agoAdd header <atomic> which is needed to compile with some older library versions.
Douglas Yung [Wed, 21 Nov 2018 08:54:40 +0000 (08:54 +0000)]
Add header <atomic> which is needed to compile with some older library versions.

llvm-svn: 347382

5 years ago[NFC] Add some sophisticated tests on LoopSimplifyCFG
Max Kazantsev [Wed, 21 Nov 2018 07:22:06 +0000 (07:22 +0000)]
[NFC] Add some sophisticated tests on LoopSimplifyCFG

llvm-svn: 347381

5 years ago[X86] In getScalarMaskingNode, replace scalar_to_vector with a bitcast to v8i1 and...
Craig Topper [Wed, 21 Nov 2018 07:01:22 +0000 (07:01 +0000)]
[X86] In getScalarMaskingNode, replace scalar_to_vector with a bitcast to v8i1 and an extract_subvector to convert i8 to v1i1.

The bitcast can be nicely merged with any i8 loads that exist for argument passing in 32 mode for example.

llvm-svn: 347380

5 years ago[LVI] run transfer function for binary operator even when the RHS isn't a constant
John Regehr [Wed, 21 Nov 2018 05:24:12 +0000 (05:24 +0000)]
[LVI] run transfer function for binary operator even when the RHS isn't a constant

LVI was symbolically executing binary operators only when the RHS was
constant, missing the case where we have a ConstantRange for the RHS,
but not an actual constant. Tested using check-all and by
bootstrapping. Compile time is not impacted measurably.

Differential Revision: https://reviews.llvm.org/D19859

llvm-svn: 347379

5 years ago[Driver] Link sanitizer runtime deps on Fuchsia when needed
Petr Hosek [Wed, 21 Nov 2018 04:33:44 +0000 (04:33 +0000)]
[Driver] Link sanitizer runtime deps on Fuchsia when needed

Even though these deps weren't needed, this makes Fuchsia driver
better match other drivers, and it may be necessary when trying to
use different C libraries on Fuchsia.

Differential Revision: https://reviews.llvm.org/D54741

llvm-svn: 347378

5 years ago[libc++] Implement P0487R1 - Fixing operator>>(basic_istream&, CharT*)
Zhihao Yuan [Wed, 21 Nov 2018 03:30:10 +0000 (03:30 +0000)]
[libc++] Implement P0487R1 - Fixing operator>>(basic_istream&, CharT*)

Summary:
Avoid buffer overflow by replacing the pointer interface with an array reference interface in C++2a.
Tentatively ready on Batavia2018.

 https://wg21.link/lwg2499
 https://wg21.link/p0487

Reviewers: mclow.lists, ldionne, EricWF

Reviewed By: ldionne

Subscribers: libcxx-commits, cfe-commits, christof

Differential Revision: https://reviews.llvm.org/D51268

llvm-svn: 347377

5 years ago[PowerPC] Do not use vectors to codegen bswap with Altivec turned off
Nemanja Ivanovic [Wed, 21 Nov 2018 02:53:50 +0000 (02:53 +0000)]
[PowerPC] Do not use vectors to codegen bswap with Altivec turned off

We have efficient codegen on P9 for lowering bswap that involves moving
the value into a vector reg and moving it back. However, the check under
which we custom lowered it did not adequately reflect the actual requirements.
It required only that the subtarget be an implementation of ISA 3.0 since all
compliant implementations have to provide the vector instructions.
However, the kernel builds have a valid use case for -mno-altivec -mcpu=pwr9
(i.e. don't emit vector code, don't have to save vector regs for context
switch). So we should require the correct features for this lowering.
Fixes https://bugs.llvm.org/show_bug.cgi?id=39334

llvm-svn: 347376

5 years ago[X86] Correct 256 vpmovzx/vpmovsx isel patterns to check HasAVX2 instead of HasAVX...
Craig Topper [Wed, 21 Nov 2018 01:39:38 +0000 (01:39 +0000)]
[X86] Correct 256 vpmovzx/vpmovsx isel patterns to check HasAVX2 instead of HasAVX to prevent fast-isel from using them incorrectly.

These are AVX2 instructions, but have been incorrectly marked in tablegen for a while. This wasn't a problem until r346784 switched the patterns to use target independent ISD opcodes. This made the patterns visible to fast isel.

Fixes PR39733

llvm-svn: 347375

5 years ago[X86] Add a copy of avx512-trunc.ll with -x86-experimental-vector-widening-legalizati...
Craig Topper [Wed, 21 Nov 2018 01:39:35 +0000 (01:39 +0000)]
[X86] Add a copy of avx512-trunc.ll with -x86-experimental-vector-widening-legalization enabled.

llvm-svn: 347374

5 years ago[clang-tidy] Add a test for proper handling of locations in scratch space.
Alexander Kornienko [Wed, 21 Nov 2018 01:11:18 +0000 (01:11 +0000)]
[clang-tidy] Add a test for proper handling of locations in scratch space.

This test examines the behavior change of clang::tooling::Diagnostic in r347372.

llvm-svn: 347373

5 years agoclang::tooling::Diagnostic: Don't store offset in the scratch space.
Alexander Kornienko [Wed, 21 Nov 2018 01:08:46 +0000 (01:08 +0000)]
clang::tooling::Diagnostic: Don't store offset in the scratch space.

These offsets are useless (and even harmful in certain cases) in exported
diagnostics. The test will be added to clang-tidy, since it's the main user of
the clang::tooling::Diagnostic class.

llvm-svn: 347372

5 years agoImplement YAML serialization of notes in clang::tooling::Diagnostic.
Alexander Kornienko [Wed, 21 Nov 2018 01:06:32 +0000 (01:06 +0000)]
Implement YAML serialization of notes in clang::tooling::Diagnostic.

llvm-svn: 347371

5 years ago[WebAssembly] Delete unused using statements (NFC)
Heejin Ahn [Wed, 21 Nov 2018 00:51:37 +0000 (00:51 +0000)]
[WebAssembly] Delete unused using statements (NFC)

Reviewers: sbc100, dschuff

Subscribers: mehdi_amini, jgravelle-google, sunfish, steven_wu, dexonsmith, llvm-commits

Differential Revision: https://reviews.llvm.org/D54683

llvm-svn: 347370

5 years ago[docs] Add C++ Performance Benchmark to test-suite proposals.
Michael Kruse [Wed, 21 Nov 2018 00:34:02 +0000 (00:34 +0000)]
[docs] Add C++ Performance Benchmark to test-suite proposals.

llvm-svn: 347369

5 years ago[XRay] Add a test for re-initialising FDR mode (NFC)
Dean Michael Berris [Wed, 21 Nov 2018 00:30:26 +0000 (00:30 +0000)]
[XRay] Add a test for re-initialising FDR mode (NFC)

This change adds an end-to-end test that ensures FDR mode can be
re-initialised safely in the face of multiple threads being traced.

llvm-svn: 347368

5 years ago[NFC] Rename lit feature to '-fsized-deallocation' for consistency
Louis Dionne [Wed, 21 Nov 2018 00:03:17 +0000 (00:03 +0000)]
[NFC] Rename lit feature to '-fsized-deallocation' for consistency

The '-faligned-allocation' flag uses a feature with the same name (with a
leading dash).

llvm-svn: 347367

5 years agoUpdate EvaluateAsInt to the new syntax.
Bill Wendling [Tue, 20 Nov 2018 23:24:39 +0000 (23:24 +0000)]
Update EvaluateAsInt to the new syntax.

llvm-svn: 347366

5 years agoUpdate call to EvaluateAsInt() to the new syntax.
Bill Wendling [Tue, 20 Nov 2018 23:24:18 +0000 (23:24 +0000)]
Update call to EvaluateAsInt() to the new syntax.

llvm-svn: 347365

5 years agoReinstate 347294 with a fix for the failures.
Bill Wendling [Tue, 20 Nov 2018 23:24:16 +0000 (23:24 +0000)]
Reinstate 347294 with a fix for the failures.

EvaluateAsInt() is sometimes called in a constant context. When that's the
case, we need to specify it as so.

llvm-svn: 347364

5 years ago[NFC] Reformat availability #defines in __config
Louis Dionne [Tue, 20 Nov 2018 23:18:25 +0000 (23:18 +0000)]
[NFC] Reformat availability #defines in __config

Aligning everything makes what we're doing more obvious.

llvm-svn: 347363

5 years ago[NFC] Fix formatting in availability documentation
Louis Dionne [Tue, 20 Nov 2018 23:07:01 +0000 (23:07 +0000)]
[NFC] Fix formatting in availability documentation

llvm-svn: 347362

5 years ago[X86] Emit a PACKUS instead of a VECTOR_SHUFFLE from LowerTRUNCATE for v16i16->v16i8.
Craig Topper [Tue, 20 Nov 2018 22:57:48 +0000 (22:57 +0000)]
[X86] Emit a PACKUS instead of a VECTOR_SHUFFLE from LowerTRUNCATE for v16i16->v16i8.

We can't guarantee that demanded bits passing through the vector shuffle won't cause the AND in front of this to be removed. This would prevent the PACKUS from being matched during shuffle lowering.

Unfortunately, this adds a packuswb to one of the vector-reduce-mul.ll tests since we were removing the shuffle via SimplifyDemandedVectorElts. We appear to have similar issues with vpmovwb on the same test case on other targets.

llvm-svn: 347361

5 years agoA couple of tests were broken when clang implemented the compiler parts of P0482...
Marshall Clow [Tue, 20 Nov 2018 22:55:40 +0000 (22:55 +0000)]
A couple of tests were broken when clang implemented the compiler parts of P0482 (support for char8_t). Comment out those bits until we implement the corresponding bits in libc++

llvm-svn: 347360

5 years agoFix pointer options mask. It was off by 1 bit.
Zachary Turner [Tue, 20 Nov 2018 22:53:40 +0000 (22:53 +0000)]
Fix pointer options mask.  It was off by 1 bit.

llvm-svn: 347359

5 years agoRevert "[Sanitizer] intercept setvbuf on other platforms where it is supported"
David Carlier [Tue, 20 Nov 2018 22:50:31 +0000 (22:50 +0000)]
Revert "[Sanitizer] intercept setvbuf on other platforms where it is supported"

llvm-svn: 347358

5 years ago[Sanitizer] Unbreak non NetBSD builds.
David Carlier [Tue, 20 Nov 2018 22:35:29 +0000 (22:35 +0000)]
[Sanitizer] Unbreak non NetBSD builds.

llvm-svn: 347357

5 years ago[DAGCombiner] look through bitcasts when trying to narrow vector binops
Sanjay Patel [Tue, 20 Nov 2018 22:26:35 +0000 (22:26 +0000)]
[DAGCombiner] look through bitcasts when trying to narrow vector binops

This is another step in vector narrowing - a follow-up to D53784
(and hoping to eventually squash potential regressions seen in
D51553).

The x86 test diffs are wins, but the AArch64 diff is probably not.
That problem already exists independent of this patch (see PR39722), but it
went unnoticed in the previous patch because there were no regression tests
that showed the possibility.

The x86 diff in i64-mem-copy.ll is close. Given the frequency throttling
concerns with using wider vector ops, an extra extract to reduce vector
width is the right trade-off at this level of codegen.

Differential Revision: https://reviews.llvm.org/D54392

llvm-svn: 347356

5 years ago[Sanitizer] intercept setvbuf on other platforms where it is supported
David Carlier [Tue, 20 Nov 2018 22:17:23 +0000 (22:17 +0000)]
[Sanitizer] intercept setvbuf on other platforms where it is supported

Unit tests enabled only in platform tested.

Reviewers: krytarowski, vitalybuka

Reviewed By: krytarowski, vitalybuka

Differential Revision: https://reviews.llvm.org/D54739

llvm-svn: 347355

5 years ago[CodeView] Add support for ref-qualified member functions.
Zachary Turner [Tue, 20 Nov 2018 22:13:43 +0000 (22:13 +0000)]
[CodeView] Add support for ref-qualified member functions.

When you have a member function with a ref-qualifier, for example:

struct Foo {
  void Func() &;
  void Func2() &&;
};

clang-cl was not emitting this information. Doing so is a bit
awkward, because it's not a property of the LF_MFUNCTION type, which
is what you'd expect. Instead, it's a property of the this pointer
which is actually an LF_POINTER. This record has an attributes
bitmask on it, and our handling of this bitmask was all wrong. We
had some parts of the bitmask defined incorrectly, but importantly
for this bug, we didn't know about these extra 2 bits that represent
the ref qualifier at all.

Differential Revision: https://reviews.llvm.org/D54667

llvm-svn: 347354

5 years ago[CodeView] Mark this pointers as const.
Zachary Turner [Tue, 20 Nov 2018 22:13:23 +0000 (22:13 +0000)]
[CodeView] Mark this pointers as const.

This is for compatibility with MSVC, which also marks this pointers
as being const-qualified.

Fixes llvm.org/pr36526

Differential Revision: https://reviews.llvm.org/D54736

llvm-svn: 347353

5 years ago[CodeComplete] Penalize inherited ObjC properties for auto-completion
Sam McCall [Tue, 20 Nov 2018 22:06:54 +0000 (22:06 +0000)]
[CodeComplete] Penalize inherited ObjC properties for auto-completion

Summary:
Similar to auto-completion for ObjC methods, inherited properties
should be penalized / direct class and category properties should
be prioritized.

Note that currently, the penalty for using a result from a base class
(CCD_InBaseClass) is equal to the penalty for using a method as a
property (CCD_MethodAsProperty).

Reviewers: jkorous, sammccall, akyrtzi, arphaman, benlangmuir

Reviewed By: sammccall, akyrtzi

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D53900

llvm-svn: 347352

5 years ago[OpenMP] Update CHECK-DAG usage in target_parallel_codegen.cpp
Joel E. Denny [Tue, 20 Nov 2018 22:05:23 +0000 (22:05 +0000)]
[OpenMP] Update CHECK-DAG usage in target_parallel_codegen.cpp

This patch adjusts a test not to depend on deprecated FileCheck
behavior that permits overlapping matches within a block of CHECK-DAG
directives.  Thus, this patch also removes uses of FileCheck's
-allow-deprecated-dag-overlap command-line option.

There were two issues in this test:

1. There were sets of patterns for store instructions in which a
pattern X could match a superset of a pattern Y.  While X appeared
before Y, Y's intended match appeared before X's intended match.  The
result was that X matched Y's intended match.  Under the old
overlapping behavior, Y also matched Y's intended match.  Under the
new non-overlapping behavior, Y had nothing left to match.  This patch
fixes this by gathering these sets in one place and putting the most
specific patterns (Y) before the more general patterns (X).

2. The CHECK-DAG patterns involving the variables CBPADDR3 and
CBPADDR4 were the same, but there was only one match in the text, so
CBPADDR4 patterns had nothing to match under the new non-overlapping
behavior.  Moreover, a preceding related series of directives had
variables (SADDR0, BPADDR0, etc.) numbered only 0 through 4, but this
series had variables numbered 0 through 5.  Assuming CBPADDR4's
directives were not intended, this patch removes them.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D54765

llvm-svn: 347351

5 years ago[OpenMP] Update CHECK-DAG usage in for_codegen.cpp
Joel E. Denny [Tue, 20 Nov 2018 22:04:45 +0000 (22:04 +0000)]
[OpenMP] Update CHECK-DAG usage in for_codegen.cpp

This patch adjusts a test not to depend on deprecated FileCheck
behavior that permits overlapping matches within a block of CHECK-DAG
directives.  Thus, this patch also removes uses of FileCheck's
-allow-deprecated-dag-overlap command-line option.

Specifically, the FileCheck variables DBG_LOC_START, DBG_LOC_END, and
DBG_LOC_CANCEL were all set to the same value.  As a result, three
TERM_DEBUG-DAG patterns, one for each variable, all matched the same
text under the old overlapping behavior.  Under the new
non-overlapping behavior, that's not permitted.  This patch's solution
is to replace these variables with one variable and replace these
patterns with one pattern.

Reviewed By: ABataev

Differential Revision: https://reviews.llvm.org/D54764

llvm-svn: 347350

5 years ago[CodeView] RelocPtr points to little endian data.
Zachary Turner [Tue, 20 Nov 2018 21:30:11 +0000 (21:30 +0000)]
[CodeView] RelocPtr points to little endian data.

Don't use a uint32_t*, use a ulittle32_t* to make this correct
on big endian systems.

Patch by James Clarke
Differential Revision: https://reviews.llvm.org/D54421

llvm-svn: 347349

5 years ago[X86] Emit a single shuffle for the v16i8->v4i32 step of a SIGN_EXTEND_VECTOR_INREG...
Craig Topper [Tue, 20 Nov 2018 21:21:52 +0000 (21:21 +0000)]
[X86] Emit a single shuffle for the v16i8->v4i32 step of a SIGN_EXTEND_VECTOR_INREG lowering on pre-sse4.1 targets.

Previously we emitted to separate shuffles, one for unpcklbw and one for unpcklwd. Instead emit a single shuffle equivalent to both of the original shuffles. Shuffle lowering seems able to handle it. This avoids a bitcast between the two shuffles which seems helpful to DAG combine.

Remove the custom type legalization for v8i8->v8i32. I had put that in to avoid some almost duplicate punpcklbw instructions I was seeing, but this lowering change seems to fix that. It also fixes some duplicate shuffles seen in vector-sext.ll

llvm-svn: 347348

5 years ago[libcxx] Fix threads detection on GNU/Hurd
Louis Dionne [Tue, 20 Nov 2018 21:14:05 +0000 (21:14 +0000)]
[libcxx] Fix threads detection on GNU/Hurd

GNU/Hurd provides standard Posix threads

Reviewed as https://reviews.llvm.org/D54339.
Thanks to Samuel Thibault for the patch.

llvm-svn: 347347

5 years ago[unittests] Fix ExpandTilde test to match handling home dirs with trailing slash
Simon Atanasyan [Tue, 20 Nov 2018 21:13:51 +0000 (21:13 +0000)]
[unittests] Fix ExpandTilde test to match handling home dirs with trailing slash

The `expandTildeExpr` routine just replaces a tilde by a home dir path.
If the home dir has a trailing slash, the result of substitution will
contain double slashes. For example, `HOME=/foo/ ~/bar` gives `/foo//bar`.
That corresponds to (at least) Bash behaviour because the following
command `$HOME=/foo/ echo ~/bar` prints `/foo//bar`.

The `ExpandTilde` test constructs a path expected as the `fs::expand_tilde`
call result by calling `path::append` and the expected path has a single
slash. This patch fixes that and allows to pass the unittest on hosts where
the `HOME` is `/`.

Differential Revision: http://reviews.llvm.org/D54752

llvm-svn: 347346

5 years agoSilence C4709 in MSVC because it is buggy.
Aaron Ballman [Tue, 20 Nov 2018 20:50:04 +0000 (20:50 +0000)]
Silence C4709 in MSVC because it is buggy.

The diagnostic will trigger on code that does not have any comma operator, but instead default-constructs an object with an explicitly defaulted constructor as the array index argument.

llvm-svn: 347345

5 years agoNote that P0899R1 requires no work.
Marshall Clow [Tue, 20 Nov 2018 20:38:15 +0000 (20:38 +0000)]
Note that P0899R1 requires no work.

llvm-svn: 347344

5 years agoMark P0771 as complete; we already did this - I just added tests to be sure
Marshall Clow [Tue, 20 Nov 2018 20:37:07 +0000 (20:37 +0000)]
Mark P0771 as complete; we already did this - I just added tests to be sure

llvm-svn: 347343

5 years ago[OPENMP][NVPTX]Improved lock/critical constructs.
Alexey Bataev [Tue, 20 Nov 2018 20:19:36 +0000 (20:19 +0000)]
[OPENMP][NVPTX]Improved lock/critical constructs.

Summary: Improved support for critical constructs + omp_..._lock... constructs.

Reviewers: gtbercea, kkwli0, caomhin

Subscribers: guansong, jfb, openmp-commits

Differential Revision: https://reviews.llvm.org/D54766

llvm-svn: 347342

5 years ago[x86] add tests for 8-bit multiply with constant; NFC
Sanjay Patel [Tue, 20 Nov 2018 19:45:53 +0000 (19:45 +0000)]
[x86] add tests for 8-bit multiply with constant; NFC

This is based on the existing file for 16-bit. We also already have 32-bit and 64-bit variants.

llvm-svn: 347341

5 years ago[WebAssembly] WebAssemblyLowerEmscriptenEHSjLj: use getter/setter for accessing tempRet0
Sam Clegg [Tue, 20 Nov 2018 19:25:07 +0000 (19:25 +0000)]
[WebAssembly] WebAssemblyLowerEmscriptenEHSjLj: use getter/setter for accessing tempRet0

Rather than assuming that `tempRet0` exists in linear memory only assume
the getter/setter functions exist.  This avoids conflicting with
binaryen which declares a wasm global for this purpose and defines it's
own getter and setter for that.

The other advantage of doing things this way is that it leaving
it up to the linker/finalizer to decide how to actually store this
temporary.  As it happens binaryen uses a wasm global which is more
appropriate since it is thread safe.

This also allows us to change the way this is stored in the future
(memory, TLS memory, wasm global) without modifying LLVM.

This is part of a 4 part change:
LLVM: https://reviews.llvm.org/D53240
fastcomp: https://github.com/kripken/emscripten-fastcomp/pull/237
emscripten: https://github.com/kripken/emscripten/pull/7358
binaryen: https://github.com/WebAssembly/binaryen/pull/1709

Differential Revision: https://reviews.llvm.org/D53240

llvm-svn: 347340

5 years ago[clang][Parse] Diagnose useless null statements / empty init-statements
Roman Lebedev [Tue, 20 Nov 2018 18:59:05 +0000 (18:59 +0000)]
[clang][Parse] Diagnose useless null statements / empty init-statements

Summary:
clang has `-Wextra-semi` (D43162), which is not dictated by the currently selected standard.
While that is great, there is at least one more source of need-less semis - 'null statements'.
Sometimes, they are needed:
```
for(int x = 0; continueToDoWork(x); x++)
  ; // Ugly code, but the semi is needed here.
```

But sometimes they are just there for no reason:
```
switch(X) {
case 0:
  return -2345;
case 5:
  return 0;
default:
  return 42;
}; // <- oops

;;;;;;;;;;; <- OOOOPS, still not diagnosed. Clearly this is junk.
```

Additionally:
```
if(; // <- empty init-statement
   true)
  ;

switch (; // empty init-statement
        x) {
  ...
}

for (; // <- empty init-statement
     int y : S())
  ;
}

As usual, things may or may not go sideways in the presence of macros.
While evaluating this diag on my codebase of interest, it was unsurprisingly
discovered that Google Test macros are *very* prone to this.
And it seems many issues are deep within the GTest itself, not
in the snippets passed from the codebase that uses GTest.

So after some thought, i decided not do issue a diagnostic if the semi
is within *any* macro, be it either from the normal header, or system header.

Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=39111 | PR39111 ]]

Reviewers: rsmith, aaron.ballman, efriedma

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D52695

llvm-svn: 347339

5 years ago[cmake] Fix detecting terminfo library
Michal Gorny [Tue, 20 Nov 2018 18:41:11 +0000 (18:41 +0000)]
[cmake] Fix detecting terminfo library

Copy the fix for determining the correct terminfo library from LLVM --
use distinct variables for check_library_exists() calls.  Otherwise,
the first check (for -ltinfo) populates the variable and no other checks
are performed.  Effectively, systems with other libraries than the first
one listed are presumed not to have terminfo routines at all.

Also sync the check order to include the NetBSD fix from r347156.

This partially fixes undefined symbols when linking XRay tests.  It's
probably not the best solution to the problem there but as long
as the terminfo check stays in config-ix, I thnk it's worth fixing.

Differential Revision: https://reviews.llvm.org/D54641

llvm-svn: 347338

5 years ago[unittest] Skip W+X MappedMemoryTests when MPROTECT is enabled
Michal Gorny [Tue, 20 Nov 2018 18:38:11 +0000 (18:38 +0000)]
[unittest] Skip W+X MappedMemoryTests when MPROTECT is enabled

Skip all MappedMemoryTest variants that rely on memory pages being
mapped for MF_WRITE|MF_EXEC when MPROTECT is enabled on NetBSD.  W^X
protection causes all those mmap() calls to fail, causing the tests
to fail.

Differential Revision: https://reviews.llvm.org/D54080

llvm-svn: 347337

5 years ago[tsan] Add __cxa_guard_acquire hooks to support cooperative scheduling
Vitaly Buka [Tue, 20 Nov 2018 18:21:42 +0000 (18:21 +0000)]
[tsan] Add __cxa_guard_acquire hooks to support cooperative scheduling

Reviewers: dvyukov

Subscribers: krytarowski, kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D54664

llvm-svn: 347336

5 years ago[X86] Remove -verify-machineinstrs=0 now that PR38391 is fixed.
Simon Pilgrim [Tue, 20 Nov 2018 18:08:56 +0000 (18:08 +0000)]
[X86] Remove -verify-machineinstrs=0 now that PR38391 is fixed.

llvm-svn: 347335

5 years ago[Docs] Documentation for the saturation addition and subtraction intrinsics
Leonard Chan [Tue, 20 Nov 2018 18:01:24 +0000 (18:01 +0000)]
[Docs] Documentation for the saturation addition and subtraction intrinsics

Differential Revision: https://reviews.llvm.org/D54729

llvm-svn: 347334

5 years ago[InstCombine] add tests for funnel shifts; NFC
Sanjay Patel [Tue, 20 Nov 2018 17:51:49 +0000 (17:51 +0000)]
[InstCombine] add tests for funnel shifts; NFC

These are included in D54666, so adding them first with baseline results.

Patch by: @nikic (Nikita Popov)

llvm-svn: 347333

5 years ago[InstSimplify] fold funnel shifts with undef operands
Sanjay Patel [Tue, 20 Nov 2018 17:34:59 +0000 (17:34 +0000)]
[InstSimplify] fold funnel shifts with undef operands

Splitting these off from the D54666.

Patch by: nikic (Nikita Popov)

llvm-svn: 347332

5 years ago[InstSimplify] add tests for funnel shift with undef operands; NFC
Sanjay Patel [Tue, 20 Nov 2018 17:30:09 +0000 (17:30 +0000)]
[InstSimplify] add tests for funnel shift with undef operands; NFC

These are part of D54666, so adding them here before the patch to
show the baseline (currently unoptimized) results.

Patch by: @nikic (Nikita Popov)

llvm-svn: 347331

5 years ago[InstructionSimplify] Add support for saturating add/sub
Sanjay Patel [Tue, 20 Nov 2018 17:20:26 +0000 (17:20 +0000)]
[InstructionSimplify] Add support for saturating add/sub

Add support for saturating add/sub in InstructionSimplify. In particular, the following simplifications are supported:

    sat(X + 0) -> X
    sat(X + undef) -> -1
    sat(X uadd MAX) -> MAX
    (and commutative variants)

    sat(X - 0) -> X
    sat(X - X) -> 0
    sat(X - undef) -> 0
    sat(undef - X) -> 0
    sat(0 usub X) -> 0
    sat(X usub MAX) -> 0

Patch by: @nikic (Nikita Popov)

Differential Revision: https://reviews.llvm.org/D54532

llvm-svn: 347330

5 years agoAdd benchmarks for sorting and heap functions.
Samuel Benzaquen [Tue, 20 Nov 2018 17:15:17 +0000 (17:15 +0000)]
Add benchmarks for sorting and heap functions.

Summary:
Benchmarks for std::sort, std::stable_sort, std::make_heap,
std::sort_heap, std::pop_heap and std::push_heap.

The benchmarks are run with integers and strings, and with different
sorted input.

Reviewers: EricWF

Subscribers: christof, mgrang, ldionne, libcxx-commits

Differential Revision: https://reviews.llvm.org/D53978

llvm-svn: 347329

5 years ago[ConstantFolding] Add support for saturating add/sub
Sanjay Patel [Tue, 20 Nov 2018 17:05:55 +0000 (17:05 +0000)]
[ConstantFolding] Add support for saturating add/sub

Support saturating add/sub in constant folding, based on the APInt methods introduced in D54332.

Patch by: @nikic (Nikita Popov)

Differential Revision: https://reviews.llvm.org/D54531

llvm-svn: 347328

5 years ago[ELF] Allow --noinhibit-exec to produce corrupted executable with relocation overflow
Fangrui Song [Tue, 20 Nov 2018 17:04:11 +0000 (17:04 +0000)]
[ELF] Allow --noinhibit-exec to produce corrupted executable with relocation overflow

Summary:
When --noinhibit-exec is used, ld.bfd/gold emit errors but allow to produce corrupted executable, which is handy for debugging purpose. lld's --noinhibit-exec has a different meaning and changes some errors to warnings. This patch replaces "error" with "errorOrWarn" to exploit that property.

We may revisit this: if we should keep them as errors (as ld.bfd/gold do) but allow to produce a (corrupted) executable.

Reviewers: ruiu, grimar, espindola

Reviewed By: grimar

Subscribers: Timmmm, jhenderson, emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D54651

llvm-svn: 347327

5 years ago[AMDGPU] Regenerate weird stores tests.
Simon Pilgrim [Tue, 20 Nov 2018 17:04:02 +0000 (17:04 +0000)]
[AMDGPU] Regenerate weird stores tests.

Makes an upcoming SimplifyDemandedBits optimization much easier to understand.

llvm-svn: 347326

5 years ago[LoopSink] Add preheader to alias set
Guozhi Wei [Tue, 20 Nov 2018 16:49:07 +0000 (16:49 +0000)]
[LoopSink] Add preheader to alias set

This patch fixes PR39695.

The original LoopSink only considers memory alias in loop body. But PR39695 shows that instructions following sink candidate in preheader should also be checked. This is a conservative patch, it simply adds whole preheader block to alias set. It may lose some optimization opportunity, but I think that is very rare because: 1 in the most common case st/ld to the same address, the load should already be optimized away. 2 usually preheader is not very large.

Differential Revision: https://reviews.llvm.org/D54659

llvm-svn: 347325

5 years ago[APInt] Add methods for saturated add and sub
Sanjay Patel [Tue, 20 Nov 2018 16:47:59 +0000 (16:47 +0000)]
[APInt] Add methods for saturated add and sub

This adds the sadd_sat, uadd_sat, ssub_sat, usub_sat methods for performing saturating additions and subtractions to APInt.

Split out from D54237.

Patch by: nikic (Nikita Popov)

Differential Revision: https://reviews.llvm.org/D54332

llvm-svn: 347324

5 years ago[lit] Build and link TestIRMemoryMapWindows explicitly
Stella Stamenova [Tue, 20 Nov 2018 16:44:06 +0000 (16:44 +0000)]
[lit] Build and link TestIRMemoryMapWindows explicitly

If we just invoke clang-cl without specifying the linker, the tests fail on Windows because they cannot find the correct linker to use, so it needs to be specified explicitly

llvm-svn: 347323

5 years ago[NFC] Remove MS line endings in diagnostics file.
Erich Keane [Tue, 20 Nov 2018 16:32:46 +0000 (16:32 +0000)]
[NFC] Remove MS line endings in diagnostics file.

Change-Id: I74704acf052e2e8fe707f18230bc5655c2bf2a91
llvm-svn: 347322

5 years ago[lit] Disable the stop hook tests on Windows
Stella Stamenova [Tue, 20 Nov 2018 16:24:03 +0000 (16:24 +0000)]
[lit] Disable the stop hook tests on Windows
These tests are not able to pass on Windows as written as they don't even build

llvm-svn: 347321

5 years ago[AST] Store the expressions in ParenListExpr in a trailing array
Bruno Ricci [Tue, 20 Nov 2018 16:20:40 +0000 (16:20 +0000)]
[AST] Store the expressions in ParenListExpr in a trailing array

Use the newly available space in the bit-fields of Stmt
and store the expressions in a trailing array. This saves
2 pointer per ParenListExpr.

Differential Revision: https://reviews.llvm.org/D54675

Reviewed By: rjmccall

llvm-svn: 347320

5 years ago[AST][NFC] Factor out some repeated code in ArraySubscriptExpr.
Bruno Ricci [Tue, 20 Nov 2018 16:09:45 +0000 (16:09 +0000)]
[AST][NFC] Factor out some repeated code in ArraySubscriptExpr.

Factor out the test for whether the LHS is the base of the
array subscript expression into a private method lhsIsBase.

NFC.

llvm-svn: 347319

5 years ago[PatternMatch] Handle undef vectors consistently
Sanjay Patel [Tue, 20 Nov 2018 16:08:19 +0000 (16:08 +0000)]
[PatternMatch] Handle undef vectors consistently

This patch fixes the issue noticed in D54532.
The problem is that cst_pred_ty-based matchers like m_Zero() currently do not match
scalar undefs (as expected), but *do* match vector undefs. This may lead to optimization
inconsistencies in rare cases.

There is only one existing test for which output changes, reverting the change from D53205.
The reason here is that vector fsub undef, %x is no longer matched as an m_FNeg(). While I
think that the new output is technically worse than the previous one, it is consistent with
scalar, and I don't think it's really important either way (generally that undef should have
been folded away prior to reassociation.)

I've also added another test case for this issue based on InstructionSimplify. It took some
effort to find that one, as in most cases undef folds are either checked first -- and in the
cases where they aren't it usually happens to not make a difference in the end. This is the
only case I was able to come up with. Prior to this patch the test case simplified to undef
in the scalar case, but zeroinitializer in the vector case.

Patch by: @nikic (Nikita Popov)

Differential Revision: https://reviews.llvm.org/D54631

llvm-svn: 347318

5 years ago[AST][NFC] Pack ArraySubscriptExpr
Bruno Ricci [Tue, 20 Nov 2018 16:03:33 +0000 (16:03 +0000)]
[AST][NFC] Pack ArraySubscriptExpr

Use the newly available space in the bit-fields of Stmt.
This saves one pointer per ArraySubscriptExpr.

llvm-svn: 347317

5 years ago[AArch64, x86] add tests for shift-not (PR39657); NFC
Sanjay Patel [Tue, 20 Nov 2018 15:49:42 +0000 (15:49 +0000)]
[AArch64, x86] add tests for shift-not (PR39657); NFC

llvm-svn: 347316

5 years ago[clang-tidy] Don't generate incorrect fixes for class constructed from list-initializ...
Haojian Wu [Tue, 20 Nov 2018 15:45:15 +0000 (15:45 +0000)]
[clang-tidy] Don't generate incorrect fixes for class constructed from list-initialized arguments

Summary:
Currently the smart_ptr check (modernize-make-unique) generates the
fixes that cannot compile for cases like below -- because brace list can
not be deduced in `make_unique`.

```
struct Bar { int a, b; };
struct Foo { Foo(Bar); };
auto foo = std::unique_ptr<Foo>(new Foo({1, 2}));
```

Reviewers: aaron.ballman

Subscribers: xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D54704

llvm-svn: 347315

5 years agoRevert 347294, it turned many bots on lab.llvm.org:8011/console red.
Nico Weber [Tue, 20 Nov 2018 15:27:43 +0000 (15:27 +0000)]
Revert 347294, it turned many bots on lab.llvm.org:8011/console red.

llvm-svn: 347314

5 years ago[DAGCombine] Add calls to SimplifyDemandedVectorElts from visitINSERT_SUBVECTOR ...
Simon Pilgrim [Tue, 20 Nov 2018 15:23:50 +0000 (15:23 +0000)]
[DAGCombine] Add calls to SimplifyDemandedVectorElts from visitINSERT_SUBVECTOR (PR37989)

This uncovered an off-by-one typo in SimplifyDemandedVectorElts's INSERT_SUBVECTOR handling as its bounds check was bailing on safe indices.

llvm-svn: 347313

5 years agoUpdate the documentation for attribute feature tests.
Aaron Ballman [Tue, 20 Nov 2018 15:23:07 +0000 (15:23 +0000)]
Update the documentation for attribute feature tests.

This clarifies that __has_cpp_attribute is no longer always an extension since it's now available in C++2a. Also, Both __has_cpp_attribute and __has_c_attribute can accept attribute scope tokens with alternative spelling (clang vs _Clang and gnu vs __gnu__).

llvm-svn: 347312

5 years ago[PowerPC] Add Itineraries for STWU/STWUX etc
Jinsong Ji [Tue, 20 Nov 2018 15:11:42 +0000 (15:11 +0000)]
[PowerPC] Add Itineraries for STWU/STWUX etc

When doing some instruction scheduling work, we noticed some missing itineraries.

Before we switch to machine scheduler, those missing itineraries might not have impact to actually scheduling,
because we can still get same latency due to default values.

With machine scheduler, however, itineraries will have impact to scheduling.
eg: NumMicroOps will default to be 0 if there is NO itineraries for specific instruction class.
And most of the instruction class with itineraries will have NumMicroOps default to 1.

This will has impact on the count of RetiredMOps, affects the Pending/Available Queue,
then causing different scheduling or suboptimal scheduling further.

This patch is for STWU/STWUX (IIC_LdStStoreUpd ) for P8.

Since there are already multiple IIC for store update, this patch also merge
IIC_LdStSTDU/IIC_LdStStoreUpd to IIC_LdStSTU
IIC_LdStSTDUX to IIC_LdStSTUX

and we add a new testcase in https://reviews.llvm.org/D54699 to show the difference.

Differential Revision: https://reviews.llvm.org/D54700

llvm-svn: 347311

5 years ago[PowerPC][NFC]Add testcase for STWU scheduling check
Jinsong Ji [Tue, 20 Nov 2018 14:55:43 +0000 (14:55 +0000)]
[PowerPC][NFC]Add testcase for STWU scheduling check

This patch add a STWU testcase for scheduling check.

Currently P7/P8 which use itineraries are missing IIC_LdStStoreUpd,
We use CHECK-ITIN prefix to check P7/P8, then use default for P9 (and future).

We will fix the missing itineraries of IIC_LdStStoreUpd in following patch,
and update this testcase to show the scheduling difference only there.

Differential Revision: https://reviews.llvm.org/D54699

llvm-svn: 347310

5 years ago[llvm-exegesis][NFC] Some code style cleanup
Jinsong Ji [Tue, 20 Nov 2018 14:41:59 +0000 (14:41 +0000)]
[llvm-exegesis][NFC] Some code style cleanup

Apply review comments of https://reviews.llvm.org/D54185 to other target as well, specifically:

1. make anonymous namespaces as small as possible, avoid using static inside anonymous namespaces
2. Add missing header to some files
3. GetLoadImmediateOpcodem-> getLoadImmediateOpcode
4. Fix typo

Differential Revision: https://reviews.llvm.org/D54343

llvm-svn: 347309

5 years agoFix MSVC 'truncation of constant value' warning. NFCI.
Simon Pilgrim [Tue, 20 Nov 2018 14:29:40 +0000 (14:29 +0000)]
Fix MSVC 'truncation of constant value' warning. NFCI.

llvm-svn: 347308

5 years ago[clang-format] JS: don't treat is: as a type matcher
Krasimir Georgiev [Tue, 20 Nov 2018 14:22:43 +0000 (14:22 +0000)]
[clang-format] JS: don't treat is: as a type matcher

Summary:
Clang-format is treating all occurences of `is` in js as type matchers. In some
cases this is wrong, as it might be a dict key.

Reviewers: mprobst

Reviewed By: mprobst

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D54753

llvm-svn: 347307

5 years ago[ASTImporter] Set redecl chain of functions before any other import
Gabor Marton [Tue, 20 Nov 2018 14:19:39 +0000 (14:19 +0000)]
[ASTImporter] Set redecl chain of functions before any other import

Summary:
FunctionDecl import starts with a lookup and then we create a new Decl.
Then in case of CXXConstructorDecl we further import other Decls
(base classes, members through CXXConstructorDecl::inits()) before connecting
the redecl chain.  During those in-between imports structural eq fails
because the canonical decl is different.  This commit fixes this.
Synthesizing a test seemed extremely hard, however, Xerces analysis
reproduces the problem.

Reviewers: a_sidorin, a.sidorin

Subscribers: rnkovacs, dkrupp, Szelethus, cfe-commits

Differential Revision: https://reviews.llvm.org/D53702

llvm-svn: 347306

5 years ago[CMake] Streamline code signing for debugserver and pass entitlements to extended...
Stefan Granitz [Tue, 20 Nov 2018 14:10:33 +0000 (14:10 +0000)]
[CMake] Streamline code signing for debugserver and pass entitlements to extended llvm_codesign

Summary:
Use llvm_codesign to sign debugserver with entitlements.
Set global LLVM_CODESIGNING_IDENTITY from LLDB_CODESIGN_IDENTITY (if given).
Pass through ENTITLEMENTS from add_lldb_executable to add_llvm_executable.
Handle reconfigurations correctly.

We have a lot of cases, make them explicit:

(1) build and sign debugserver, if all conditions apply:
* LLDB_NO_DEBUGSERVER=OFF (default)
* On Darwin: LLDB_USE_SYSTEM_DEBUGSERVER=OFF (default)
* On Darwin: LLVM_CODESIGNING_IDENTITY == lldb_codesign

(2) use system debugserver, if on Darwin and any of:
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and found on system (explicit case)
* LLVM_CODESIGNING_IDENTITY != lldb_codesign and found on system (fallback case)

(3) debugserver will not be available, in case of:
* LLDB_NO_DEBUGSERVER=ON
* On Darwin: LLVM_CODESIGNING_IDENTITY != lldb_codesign and not found on system

(4) error state, in case of:
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and not found on system
* LLDB_USE_SYSTEM_DEBUGSERVER=ON and LLDB_NO_DEBUGSERVER=ON

Reviewers: xiaobai, beanz, vsk, JDevlieghere

Subscribers: mgorny, lldb-commits, llvm-commits

Differential Revision: https://reviews.llvm.org/D54476

llvm-svn: 347305

5 years agoAllow force updating the NumCreatedFIDsForFileID.
Vassil Vassilev [Tue, 20 Nov 2018 13:53:20 +0000 (13:53 +0000)]
Allow force updating the NumCreatedFIDsForFileID.

Our internal clients implement parsing cache based on FileID. In order for the
Preprocessor to reenter the cached FileID it needs to reset its
NumCreatedFIDsForFileID.

Differential Revision: https://reviews.llvm.org/D51295

llvm-svn: 347304

5 years ago[X86][SSE] Add computeKnownBits/ComputeNumSignBits support for PACKSS/PACKUS instruct...
Simon Pilgrim [Tue, 20 Nov 2018 13:23:37 +0000 (13:23 +0000)]
[X86][SSE] Add computeKnownBits/ComputeNumSignBits support for PACKSS/PACKUS instructions.

Pull out getPackDemandedElts demanded elts remapping helper from computeKnownBitsForTargetNode and use in computeKnownBits/ComputeNumSignBits.

llvm-svn: 347303

5 years ago[X86][SSE] XFormVExtractWithShuffleIntoLoad - getVectorShuffle won't accept SM_Sentin...
Simon Pilgrim [Tue, 20 Nov 2018 12:17:50 +0000 (12:17 +0000)]
[X86][SSE] XFormVExtractWithShuffleIntoLoad - getVectorShuffle won't accept SM_SentinelZero

Noticed while working on improving demanded elts target shuffle shuffle combining

llvm-svn: 347302

5 years ago[TargetLowering] Improve SimplifyDemandedVectorElts/SimplifyDemandedBits support
Simon Pilgrim [Tue, 20 Nov 2018 12:02:16 +0000 (12:02 +0000)]
[TargetLowering] Improve SimplifyDemandedVectorElts/SimplifyDemandedBits support

For bitcast nodes from larger element types, add the ability for SimplifyDemandedVectorElts to call SimplifyDemandedBits by merging the elts mask to a bits mask.

I've raised https://bugs.llvm.org/show_bug.cgi?id=39689 to deal with the few places where SimplifyDemandedBits's lack of vector handling is a problem.

Differential Revision: https://reviews.llvm.org/D54679

llvm-svn: 347301

5 years ago[X86][SSE] Lower immediately to PACKUS instead of VECTOR_SHUFFLE.
Simon Pilgrim [Tue, 20 Nov 2018 11:46:37 +0000 (11:46 +0000)]
[X86][SSE] Lower immediately to PACKUS instead of VECTOR_SHUFFLE.

As discussed on rL347240, this avoids some regressions on D54679 and also helps some combines to kick in a bit earlier.

llvm-svn: 347300

5 years ago[X86][SSE] Add SimplifyDemandedVectorElts support for PACKSS/PACKUS instructions.
Simon Pilgrim [Tue, 20 Nov 2018 11:09:46 +0000 (11:09 +0000)]
[X86][SSE] Add SimplifyDemandedVectorElts support for PACKSS/PACKUS instructions.

As discussed on rL347240.

llvm-svn: 347299

5 years ago[clangd] Replay preamble #includes to clang-tidy checks.
Sam McCall [Tue, 20 Nov 2018 10:58:48 +0000 (10:58 +0000)]
[clangd] Replay preamble #includes to clang-tidy checks.

Summary:
This is needed to correctly handle checks that use IncludeInserter,
which is very common.

I couldn't find a totally safe example of a check to enable for testing,
I picked modernize-deprecated-headers which some will probably hate.
We should get configuration working...

This depends on D54691 which ensures our calls to getFile(open=false)
don't break subsequent accesses via the FileManager.

Reviewers: ilya-biryukov

Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D54694

llvm-svn: 347298