platform/upstream/llvm.git
5 years agoRevert "Try to update the test to fix the breakage With the new warning, we are showi...
Adam Nemet [Fri, 14 Dec 2018 00:43:36 +0000 (00:43 +0000)]
Revert "Try to update the test to fix the breakage With the new warning, we are showing one more output in the test."

This reverts commit r349064.

This wasn't updating the right test.  Causing (not the different line number
from the previous revert):

======================================================================
FAIL: test_diagnostic_warning (tests.cindex.test_diagnostics.TestDiagnostics)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/bindings/python/tests/cindex/test_diagnostics.py", line 18, in test_diagnostic_warning
    self.assertEqual(len(tu.diagnostics), 2)
AssertionError: 1 != 2

llvm-svn: 349118

5 years agoRevert "Make -Wstring-plus-int warns even if when the result is not out of bounds"
Adam Nemet [Fri, 14 Dec 2018 00:43:34 +0000 (00:43 +0000)]
Revert "Make -Wstring-plus-int warns even if when the result is not out of bounds"

This reverts commit r349054.

It's causing:

FAILED: tools/clang/bindings/python/tests/CMakeFiles/check-clang-python
FAIL: test_diagnostic_range (tests.cindex.test_diagnostics.TestDiagnostics)
----------------------------------------------------------------------
Traceback (most recent call last):
  File
  "/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/bindings/python/tests/cindex/test_diagnostics.py",
  line 55, in test_diagnostic_range
      self.assertEqual(len(tu.diagnostics), 1)
      AssertionError: 2 != 1

======================================================================
FAIL: test_diagnostic_warning (tests.cindex.test_diagnostics.TestDiagnostics)
----------------------------------------------------------------------
Traceback (most recent call last):
  File
  "/Users/buildslave/jenkins/workspace/clang-stage1-configure-RA/llvm/tools/clang/bindings/python/tests/cindex/test_diagnostics.py",
  line 18, in test_diagnostic_warning
      self.assertEqual(len(tu.diagnostics), 2)
      AssertionError: 1 != 2

llvm-svn: 349117

5 years agoWindows ASan: Instrument _msize_base()
Vlad Tsyrklevich [Fri, 14 Dec 2018 00:39:16 +0000 (00:39 +0000)]
Windows ASan: Instrument _msize_base()

Summary:
A recent update to the VS toolchain in chromium [1] broke the windows
ASan bot because the new toolchain calls _msize_base() instead of
_msize() in a number of _aligned_* UCRT routines. Instrument
_msize_base() as well.

[1] https://crbug.com/914947

Reviewers: rnk, #sanitizers, vitalybuka

Reviewed By: rnk, #sanitizers, vitalybuka

Subscribers: vitalybuka, kubamracek, llvm-commits

Differential Revision: https://reviews.llvm.org/D55684

llvm-svn: 349115

5 years ago[Builltins][X86] Provide implementations of __lzcnt16, __lzcnt, __lzcnt64 for MS...
Craig Topper [Fri, 14 Dec 2018 00:21:02 +0000 (00:21 +0000)]
[Builltins][X86] Provide implementations of __lzcnt16, __lzcnt, __lzcnt64 for MS compatibility. Remove declarations from intrin.h and implementations from lzcntintrin.h

intrin.h had forward declarations for these and lzcntintrin.h had implementations that were only available with -mlzcnt or a -march that supported the lzcnt feature.

For MS compatibility we should always have these builtins available regardless of X86 being the target or the CPU support the lzcnt instruction. The backends should be able to gracefully fallback to something support even if its just shifts and bit ops.

Unfortunately, gcc also implements 2 of the 3 function names here on X86 when lzcnt feature is enabled.

This patch adds builtins for these for MSVC compatibility and drops the forward declarations from intrin.h. To keep the gcc compatibility the two intrinsics that collided have been turned into macros that use the X86 specific builtins with the lzcnt feature check. These macros are only defined when _MSC_VER is not defined. Without them being macros we can get a redefinition error because -ms-extensions doesn't seem to set _MSC_VER but does make the MS builtins available.

Should fix PR40014

Differential Revision: https://reviews.llvm.org/D55677

llvm-svn: 349098

5 years agoSilence CMP0048 warning in the benchmark utility library
Reid Kleckner [Fri, 14 Dec 2018 00:17:12 +0000 (00:17 +0000)]
Silence CMP0048 warning in the benchmark utility library

I'm testing this in LLVM before sending it upstream.

Part of PR38874

llvm-svn: 349097

5 years ago[gn build] Add infrastructure to create symlinks and use it to create lld's symlinks
Nico Weber [Fri, 14 Dec 2018 00:16:33 +0000 (00:16 +0000)]
[gn build] Add infrastructure to create symlinks and use it to create lld's symlinks

This is slightly involved, see the comments in the code.

The GN build now builds a functional lld!

Differential Revision: https://reviews.llvm.org/D55606

llvm-svn: 349096

5 years ago[DAGCombiner] clean up visitEXTRACT_VECTOR_ELT
Sanjay Patel [Fri, 14 Dec 2018 00:09:08 +0000 (00:09 +0000)]
[DAGCombiner] clean up visitEXTRACT_VECTOR_ELT

This isn't quite NFC, but I don't know how to expose
any outward diffs from these changes. Mostly, this
was confusing because it used 'VT' to refer to the
operand type rather the usual type of the input node.

There's also a large block at the end that is dedicated
solely to matching loads, but that wasn't obvious. This
could probably be split up into separate functions to
make it easier to see.

It's still not clear to me when we make certain transforms
because the legality and constant conditions are
intertwined in a way that might be improved.

llvm-svn: 349095

5 years ago[X86] Demote EmitTest to a helper function of EmitCmp. Route all callers except EmitC...
Craig Topper [Thu, 13 Dec 2018 23:55:30 +0000 (23:55 +0000)]
[X86] Demote EmitTest to a helper function of EmitCmp. Route all callers except EmitCmp through EmitCmp.

This requires the two callers to manifest a 0 to make EmitCmp call EmitTest.

I'm looking into changing how we combine TEST and flag setting instructions to not be part of lowering. And instead be part of DAG combine or isel. Which will mean EmitTest will probably become gutted and maybe disappear entirely.

llvm-svn: 349094

5 years agoRevert "Switch Android from TLS_SLOT_TSAN(8) to TLS_SLOT_SANITIZER(6)"
Evgeniy Stepanov [Thu, 13 Dec 2018 23:47:59 +0000 (23:47 +0000)]
Revert "Switch Android from TLS_SLOT_TSAN(8) to TLS_SLOT_SANITIZER(6)"

Breaks sanitizer-android buildbot.

This reverts commit 85e02baff327e7b67ea5b47897302901abb2aa5d.

llvm-svn: 349093

5 years agoRevert "[hwasan] Android: Switch from TLS_SLOT_TSAN(8) to TLS_SLOT_SANITIZER(6)"
Evgeniy Stepanov [Thu, 13 Dec 2018 23:47:50 +0000 (23:47 +0000)]
Revert "[hwasan] Android: Switch from TLS_SLOT_TSAN(8) to TLS_SLOT_SANITIZER(6)"

Breaks sanitizer-android buildbot.

This reverts commit af8443a984c3b491c9ca2996b8d126ea31e5ecbe.

llvm-svn: 349092

5 years ago[AArch64] Fix Exynos predicates (NFC)
Evandro Menezes [Thu, 13 Dec 2018 23:19:46 +0000 (23:19 +0000)]
[AArch64] Fix Exynos predicates (NFC)

Fix the logic in the definition of the `ExynosShiftExPred` as a more
specific version of `ExynosShiftPred`.  But, since `ExynosShiftExPred` is
not used yet, this change has NFC.

llvm-svn: 349091

5 years ago[OpenMP] Fix transient divide by zero bug in 32-bit code
Jonathan Peyton [Thu, 13 Dec 2018 23:18:55 +0000 (23:18 +0000)]
[OpenMP] Fix transient divide by zero bug in 32-bit code

The value returned by __kmp_now_nsec() can overflow 32-bit values causing
incorrect values to be returned. The overflow can end up causing a divide
by zero error because in __kmp_initialize_system_tick(), the value
(__kmp_now_nsec() - nsec) can end up being much larger than the numerator:
1e6 * (delay + (now - goal))
during a pathological timing where the current time calculated is much larger
than nsec. When this happens, the value of __kmp_ticks_per_msec is set to zero
which is then used as the denominator in the KMP_NOW_MSEC() macro leading to
the divide by zero error.

Differential Revision: https://reviews.llvm.org/D55300

llvm-svn: 349090

5 years ago[OpenMP] Implement OpenMP 5.0 affinity format functionality
Jonathan Peyton [Thu, 13 Dec 2018 23:14:24 +0000 (23:14 +0000)]
[OpenMP] Implement OpenMP 5.0 affinity format functionality

This patch adds the affinity format functionality introduced in OpenMP 5.0.
This patch adds: Two new environment variables:

OMP_DISPLAY_AFFINITY=TRUE|FALSE
OMP_AFFINITY_FORMAT=<string>
and Four new API:
1) omp_set_affinity_format()
2) omp_get_affinity_format()
3) omp_display_affinity()
4) omp_capture_affinity()
The affinity format functionality has two ICV's associated with it:
affinity-display-var (bool) and affinity-format-var (string).
The affinity-display-var enables/disables the functionality through the
envirable OMP_DISPLAY_AFFINITY. The affinity-format-var is a formatted
string with the special field types beginning with a '%' character
similar to printf
For example, the affinity-format-var could be:
"OMP: host:%H pid:%P OStid:%i num_threads:%N thread_num:%n affinity:{%A}"

The affinity-format-var is displayed by every thread implicitly at the beginning
of a parallel region when any thread's affinity has changed (including a brand
new thread being spawned), or explicitly using the omp_display_affinity() API.
The omp_capture_affinity() function can capture the affinity-format-var in a
char buffer. And omp_set|get_affinity_format() allow the user to set|get the
affinity-format-var explicitly at runtime. omp_capture_affinity() and
omp_get_affinity_format() both return the number of characters needed to hold
the entire string it tried to make (not including NULL character). If not
enough buffer space is available,
both these functions truncate their output.

Differential Revision: https://reviews.llvm.org/D55148

llvm-svn: 349089

5 years ago[SampleFDO] handle ProfileSampleAccurate when initializing function entry count
Wei Mi [Thu, 13 Dec 2018 21:51:42 +0000 (21:51 +0000)]
[SampleFDO] handle ProfileSampleAccurate when initializing function entry count

ProfileSampleAccurate is used to indicate the profile has exact match to the
code to be optimized.

Previously ProfileSampleAccurate is handled in ProfileSummaryInfo::isColdCallSite
and ProfileSummaryInfo::isColdBlock. A better solution is to initialize function
entry count to 0 when ProfileSampleAccurate is true, so we don't have to handle
ProfileSampleAccurate in multiple places.

Differential Revision: https://reviews.llvm.org/D55660

llvm-svn: 349088

5 years ago[CUDA] Make all host-side shadows of device-side variables undef.
Artem Belevich [Thu, 13 Dec 2018 21:43:04 +0000 (21:43 +0000)]
[CUDA] Make all host-side shadows of device-side variables undef.

The host-side code can't (and should not) access the values that may
only exist on the device side. E.g. address of a __device__ function
does not exist on the host side as we don't generate the code for it there.

Differential Revision: https://reviews.llvm.org/D55663

llvm-svn: 349087

5 years agoAttempt to fix code completion test to handle LLP64 platforms
Reid Kleckner [Thu, 13 Dec 2018 21:41:07 +0000 (21:41 +0000)]
Attempt to fix code completion test to handle LLP64 platforms

llvm-svn: 349086

5 years agoFix test after -Wstring-plus-int warning was enabled
Reid Kleckner [Thu, 13 Dec 2018 21:24:08 +0000 (21:24 +0000)]
Fix test after -Wstring-plus-int warning was enabled

Use array indexing instead of addition.

llvm-svn: 349085

5 years agoRevert r348971: [AMDGPU] Support for "uniform-work-group-size" attribute
Aakanksha Patil [Thu, 13 Dec 2018 21:23:12 +0000 (21:23 +0000)]
Revert r348971: [AMDGPU] Support for "uniform-work-group-size" attribute

This patch breaks RADV (and probably RadeonSI as well)

llvm-svn: 349084

5 years agoFix debug-info-abspath.c on Windows by removing /tmp/t.o line
Reid Kleckner [Thu, 13 Dec 2018 21:18:16 +0000 (21:18 +0000)]
Fix debug-info-abspath.c on Windows by removing /tmp/t.o line

This object seemed unused, so I believe we can just remove this compiler
invocation without losing any test coverage.

llvm-svn: 349083

5 years agoUpdate the scan-build to generate SARIF.
Aaron Ballman [Thu, 13 Dec 2018 20:55:34 +0000 (20:55 +0000)]
Update the scan-build to generate SARIF.

This updates the scan-build perl script to allow outputting to sarif in a more natural fashion by specifying -sarif as a command line argument, similar to how -plist is already supported.

llvm-svn: 349082

5 years agoAMDGPU/GlobalISel: Legalize/regbankselect block_addr
Matt Arsenault [Thu, 13 Dec 2018 20:34:15 +0000 (20:34 +0000)]
AMDGPU/GlobalISel: Legalize/regbankselect block_addr

llvm-svn: 349081

5 years ago[libc++] Fix _LIBCPP_EXPORTED_FROM_ABI when visibility annotations are disabled
Thomas Anderson [Thu, 13 Dec 2018 20:06:14 +0000 (20:06 +0000)]
[libc++] Fix _LIBCPP_EXPORTED_FROM_ABI when visibility annotations are disabled

Fixes a bug where functions would get exported when building with
-fvisibility=hidden and defining _LIBCPP_DISABLE_VISIBILITY_ANNOTATIONS. No
visibility annotations should be added in this case.

The new logic for _LIBCPP_EXPORTED_FROM_ABI matches that of the other visibility
annotations around it.

Differential Revision: https://reviews.llvm.org/D55664

llvm-svn: 349080

5 years agoReapply "[MemCpyOpt] memset->memcpy forwarding with undef tail"
Nikita Popov [Thu, 13 Dec 2018 20:04:27 +0000 (20:04 +0000)]
Reapply "[MemCpyOpt] memset->memcpy forwarding with undef tail"

Currently memcpyopt optimizes cases like

    memset(a, byte, N);
    memcpy(b, a, M);

to

    memset(a, byte, N);
    memset(b, byte, M);

if M <= N. Often this allows further simplifications down the line,
which drop the first memset entirely.

This patch extends this optimization for the case where M > N, but we
know that the bytes a[N..M] are undef due to alloca/lifetime.start.

This situation arises relatively often for Rust code, because Rust does
not initialize trailing structure padding and loves to insert redundant
memcpys. This also fixes https://bugs.llvm.org/show_bug.cgi?id=39844.

The previous version of this patch did not perform dependency checking
properly: While the dependency is checked at the position of the memset,
the used size must be that of the memcpy. Previously the size of the
memset was used, which missed modification in the region
MemSetSize..CopySize, resulting in miscompiles. The added tests cover
variations of this issue.

Differential Revision: https://reviews.llvm.org/D55120

llvm-svn: 349078

5 years agoImplement a small subset of the C++ `type_traits` header inside sanitizer_common...
Dan Liew [Thu, 13 Dec 2018 19:55:36 +0000 (19:55 +0000)]
Implement a small subset of the C++ `type_traits` header inside sanitizer_common so we can avoid depending on system C++ headers.

Summary:
In particular we implement the `is_same<T,U>` templated type. This is
useful for doing compile-time comparison of types in `static_assert`s.
The plan is to use this in another patch (
https://reviews.llvm.org/D54904 ).

Reviewers: kcc, dvyukov, vitalybuka, cryptoad, eugenis, kubamracek, george.karpenkov

Subscribers: mgorny, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D54951

llvm-svn: 349077

5 years ago[ThinLTO] Compute synthetic function entry count
Easwaran Raman [Thu, 13 Dec 2018 19:54:27 +0000 (19:54 +0000)]
[ThinLTO] Compute synthetic function entry count

Summary:
This patch computes the synthetic function entry count on the whole
program callgraph (based on module summary) and writes the entry counts
to the summary. After function importing, this count gets attached to
the IR as metadata. Since it adds a new field to the summary, this bumps
up the version.

Reviewers: tejohnson

Subscribers: mehdi_amini, inglorion, llvm-commits

Differential Revision: https://reviews.llvm.org/D43521

llvm-svn: 349076

5 years ago[llvm] Address base discriminator overflow in X86DiscriminateMemOps
Mircea Trofin [Thu, 13 Dec 2018 19:40:59 +0000 (19:40 +0000)]
[llvm] Address base discriminator overflow in X86DiscriminateMemOps

Summary:
Macros are expanded on a single line. In case of large expansions,
with sufficiently many instructions with memory operands (and when
-fdebug-info-for-profiling is requested), we may be unable to generate
new base discriminator values - new values overflow (base
discriminators may not be larger than 2^12).

This CL warns instead of asserting in such a case. A subsequent CL
will add APIs to check for overflow before creating new debug info.

See https://bugs.llvm.org/show_bug.cgi?id=39890

Reviewers: davidxl, wmi, gbedwell

Reviewed By: davidxl

Subscribers: aprantl, llvm-commits

Differential Revision: https://reviews.llvm.org/D55643

llvm-svn: 349075

5 years ago[llvm-size][libobject] Add explicit "inTextSegment" methods similar to "isText" secti...
Jordan Rupprecht [Thu, 13 Dec 2018 19:40:12 +0000 (19:40 +0000)]
[llvm-size][libobject] Add explicit "inTextSegment" methods similar to "isText" section methods to calculate size correctly.

Summary:
llvm-size uses "isText()" etc. which seem to indicate whether the section contains code-like things, not whether or not it will actually go in the text segment when in a fully linked executable.

The unit test added (elf-sizes.test) shows some types of sections that cause discrepencies versus the GNU size tool. llvm-size is not correctly reporting sizes of things mapping to text/data segments, at least for ELF files.

This fixes pr38723.

Reviewers: echristo, Bigcheese, MaskRay

Reviewed By: MaskRay

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D54369

llvm-svn: 349074

5 years ago[clang-tidy] Add the abseil-duration-subtraction check
Hyrum Wright [Thu, 13 Dec 2018 19:23:52 +0000 (19:23 +0000)]
[clang-tidy] Add the abseil-duration-subtraction check

Summary:
This check uses the context of a subtraction expression as well as knowledge
about the Abseil Time types, to infer the type of the second operand of some
subtraction expressions in Duration conversions. For example:

   absl::ToDoubleSeconds(duration) - foo

can become
   absl::ToDoubleSeconds(duration - absl::Seconds(foo))

This ensures that time calculations are done in the proper domain, and also
makes it easier to further deduce the types of the second operands to these
expressions.

Reviewed By: JonasToth

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D55245

llvm-svn: 349073

5 years ago[CostModel][X86] Don't count 2 shuffles on the last level of a pairwise arithmetic...
Craig Topper [Thu, 13 Dec 2018 19:08:10 +0000 (19:08 +0000)]
[CostModel][X86] Don't count 2 shuffles on the last level of a pairwise arithmetic or min/max reduction

This is split from D55452 with the correct patch this time.

Pairwise reductions require two shuffles on every level but the last. On the last level the two shuffles are <1, u, u, u...> and <0, u, u, u...>, but <0, u, u, u...> will be dropped by InstCombine/DAGCombine as being an identity shuffle.

Differential Revision: https://reviews.llvm.org/D55615

llvm-svn: 349072

5 years ago[libcxx] Fix pop_back() tests to make sure they don't always just pass
Louis Dionne [Thu, 13 Dec 2018 18:53:17 +0000 (18:53 +0000)]
[libcxx] Fix pop_back() tests to make sure they don't always just pass

llvm-svn: 349071

5 years ago[CMake] llvm_codesign workaround for Xcode double-signing errors
Stefan Granitz [Thu, 13 Dec 2018 18:51:19 +0000 (18:51 +0000)]
[CMake] llvm_codesign workaround for Xcode double-signing errors

Summary:
When using Xcode to build LLVM with code signing, the post-build rule is executed even if the actual build-step was skipped. This causes double-signing errors. We can currently only avoid it by passing the `--force` flag.

Plus some polishing for my previous patch D54443.

Reviewers: beanz, kubamracek

Reviewed By: kubamracek

Subscribers: #lldb, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D55116

llvm-svn: 349070

5 years ago[LoopUtils] Use i32 instead of `void`.
Davide Italiano [Thu, 13 Dec 2018 18:37:23 +0000 (18:37 +0000)]
[LoopUtils] Use i32 instead of `void`.

The actual type of the first argument of the @dbg intrinsic
doesn't really matter as we're setting it to `undef`, but the
bitcode reader is picky about `void` types.

llvm-svn: 349069

5 years agoDon't add unnecessary compiler flags to llvm-config output
Tom Stellard [Thu, 13 Dec 2018 18:21:23 +0000 (18:21 +0000)]
Don't add unnecessary compiler flags to llvm-config output

Summary:
llvm-config --cxxflags --cflags, should only output the minimal flags
required to link against the llvm libraries.  They currently contain
all flags used to compile llvm including flags like -g, -pedantic,
-Wall, etc, which users may not always want.

This changes the llvm-config output to only include flags that have been
explictly added to the COMPILE_FLAGS property of the llvm-config target
by the llvm build system.

llvm.org/PR8220

Output from llvm-config when running cmake with:
cmake -G Ninja .. -DCMAKE_CXX_FLAGS=-funroll-loops

Before:

--cppflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include
            -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
--cflags:   -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include
            -fPIC -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings \
            -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough \
            -Wno-comment -fdiagnostics-color -g -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS \
            -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
--cxxflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include\
            -funroll-loops -fPIC -fvisibility-inlines-hidden -Werror=date-time -std=c++11 -Wall \
            -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers \
            -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-maybe-uninitialized \
            -Wno-class-memaccess -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wno-comment \
            -fdiagnostics-color -g  -fno-exceptions -fno-rtti -D_GNU_SOURCE -D_DEBUG \
            -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"

After:

--cppflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \
            -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
--cflags:   -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \
            -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS
--cxxflags: -I$HEADERS_DIR/llvm/include -I$HEADERS_DIR/llvm/build/include \
             -std=c++11   -fno-exceptions -fno-rtti \
             -D_GNU_SOURCE -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS

Reviewers: sylvestre.ledru, infinity0, mgorny

Reviewed By: sylvestre.ledru, mgorny

Subscribers: mgorny, dmgreen, llvm-commits

Differential Revision: https://reviews.llvm.org/D55391

llvm-svn: 349068

5 years ago[NativePDB] Add support for local variables.
Zachary Turner [Thu, 13 Dec 2018 18:17:51 +0000 (18:17 +0000)]
[NativePDB] Add support for local variables.

This patch adds support for parsing and evaluating local variables.
using the native pdb plugin.

Differential Revision: https://reviews.llvm.org/D55575

llvm-svn: 349067

5 years agoCorrectly handle skewed streams in drop_front() method.
Zachary Turner [Thu, 13 Dec 2018 18:11:33 +0000 (18:11 +0000)]
Correctly handle skewed streams in drop_front() method.

When calling BinaryStreamArray::drop_front(), if the stream
is skewed it means we must never drop the first bytes of the
stream since offsets which occur in records assume the existence
of those bytes.  So if we want to skip the first record in a
stream, then what we really want to do is just set the begin
pointer to the next record.  But we shouldn't actually remove
those bytes from the underlying view of the data.

llvm-svn: 349066

5 years agoReinstate DW_AT_comp_dir support after D55519.
Adrian Prantl [Thu, 13 Dec 2018 17:53:29 +0000 (17:53 +0000)]
Reinstate DW_AT_comp_dir support after D55519.

The DIFile used by the CU is special and distinct from the main source
file. Its directory part specifies what becomes the DW_AT_comp_dir
(the compilation directory), even if the source file was specified
with an absolute path.

To support the .dwo workflow, a valid DW_AT_comp_dir is necessary even
if source files were specified with an absolute path.

llvm-svn: 349065

5 years agoTry to update the test to fix the breakage
Sylvestre Ledru [Thu, 13 Dec 2018 17:39:02 +0000 (17:39 +0000)]
Try to update the test to fix the breakage
With the new warning, we are showing one more output in the test.

llvm-svn: 349064

5 years ago[CodeComplete] Adhere to LLVM naming style in CodeCompletionTest. NFC
Ilya Biryukov [Thu, 13 Dec 2018 17:32:38 +0000 (17:32 +0000)]
[CodeComplete] Adhere to LLVM naming style in CodeCompletionTest. NFC

Also reuses the same var for multiple to reduce the chance of
accidentally referecing the previous test.

llvm-svn: 349063

5 years agoFix MinidumpParser::GetFilteredModuleList() and test it
Greg Clayton [Thu, 13 Dec 2018 17:24:30 +0000 (17:24 +0000)]
Fix MinidumpParser::GetFilteredModuleList() and test it

The MinidumpParser::GetFilteredModuleList() code was attempting to iterate through the entire module list and if it found more than one entry for a given module name, it wanted to pick the MinidumpModule with the lowest address. A bug existed where it wasn't doing that due to "exists" variable being inverted. "exists" was set to true if it was inserted, not if it existed. Furthermore, the order of the modules would be modified by sorting all modules from low address to high address (using MinidumpModule::base_of_image). This fix also maintains the original order which means your executable is at index 0 as intended instead of some random shared library.

Tests were added to ensure this functionality doesn't regress.

Differential Revision: https://reviews.llvm.org/D55614

llvm-svn: 349062

5 years ago[CodeComplete] Temporarily disable failing assertion
Ilya Biryukov [Thu, 13 Dec 2018 17:23:48 +0000 (17:23 +0000)]
[CodeComplete] Temporarily disable failing assertion

Found the case in the clang codebase where the assertion fires.
To avoid crashing assertion-enabled builds before I re-add the missing
operation.
Will restore the assertion alongside the upcoming fix.

llvm-svn: 349061

5 years ago[MachO][TLOF] Add support for local symbols in the indirect symbol table
Francis Visoiu Mistrih [Thu, 13 Dec 2018 17:23:30 +0000 (17:23 +0000)]
[MachO][TLOF] Add support for local symbols in the indirect symbol table

On 32-bit archs, before, we would assume that an indirect symbol will
never have local linkage. This can lead to miscompiles where the
symbol's value would be 0 and the linker would use that value, because
the indirect symbol table would contain the value
`INDIRECT_SYMBOL_LOCAL` for that specific symbol.

Differential Revision: https://reviews.llvm.org/D55573

llvm-svn: 349060

5 years agoFix CodeCompleteTest.cpp for older gcc plus ccache builds
David Green [Thu, 13 Dec 2018 17:20:06 +0000 (17:20 +0000)]
Fix CodeCompleteTest.cpp for older gcc plus ccache builds

Some versions of gcc, especially when invoked through ccache (-E), can have
trouble with raw string literals inside macros. This moves the string out of
the macro.

llvm-svn: 349059

5 years ago[DAGCombiner] after simplifying demanded elements of vector operand of extract, revis...
Sanjay Patel [Thu, 13 Dec 2018 17:05:01 +0000 (17:05 +0000)]
[DAGCombiner] after simplifying demanded elements of vector operand of extract, revisit the extract; 2nd try

This is a retry of rL349051 (reverted at rL349056). I changed the check for dead-ness from
number of uses to an opcode test for DELETED_NODE based on existing similar code.

Differential Revision: https://reviews.llvm.org/D55655

llvm-svn: 349058

5 years ago[X86][SSE] Add SSE vector imm/var shift support to SimplifyDemandedVectorEltsForTarge...
Simon Pilgrim [Thu, 13 Dec 2018 16:39:29 +0000 (16:39 +0000)]
[X86][SSE] Add SSE vector imm/var shift support to SimplifyDemandedVectorEltsForTargetNode

llvm-svn: 349057

5 years agorevert rL349051: [DAGCombiner] after simplifying demanded elements of vector operand...
Sanjay Patel [Thu, 13 Dec 2018 16:32:44 +0000 (16:32 +0000)]
revert rL349051: [DAGCombiner] after simplifying demanded elements of vector operand of extract, revisit the extract

This causes an address sanitizer bot failure:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/27187/steps/check-llvm%20asan/logs/stdio

llvm-svn: 349056

5 years agoRecommit r349041: [tblgen][disasm] Separate encodings from instructions
Daniel Sanders [Thu, 13 Dec 2018 16:17:54 +0000 (16:17 +0000)]
Recommit r349041: [tblgen][disasm] Separate encodings from instructions

Removed const from the ArrayRef<const EncodingAndInst> to avoid the
std::vector<const EncodingAndInst> that G++ saw

llvm-svn: 349055

5 years agoMake -Wstring-plus-int warns even if when the result is not out of bounds
Sylvestre Ledru [Thu, 13 Dec 2018 16:06:23 +0000 (16:06 +0000)]
Make -Wstring-plus-int warns even if when the result is not out of bounds

Summary: Patch by Arnaud Bienner

Reviewers: sylvestre.ledru, thakis

Reviewed By: thakis

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D55382

llvm-svn: 349054

5 years ago[CodeComplete] Fill preferred type on binary expressions
Ilya Biryukov [Thu, 13 Dec 2018 16:06:11 +0000 (16:06 +0000)]
[CodeComplete] Fill preferred type on binary expressions

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D55648

llvm-svn: 349053

5 years ago[X86][SSE] Fix all remaining modulo vector rotation amounts (PR38243)
Simon Pilgrim [Thu, 13 Dec 2018 15:50:31 +0000 (15:50 +0000)]
[X86][SSE] Fix all remaining modulo vector rotation amounts (PR38243)

There's still a couple of minor SimplifyDemandedElts regressions in some of the shift amount splats that will be fixed in future patches.

llvm-svn: 349052

5 years ago[DAGCombiner] after simplifying demanded elements of vector operand of extract, revis...
Sanjay Patel [Thu, 13 Dec 2018 15:44:26 +0000 (15:44 +0000)]
[DAGCombiner] after simplifying demanded elements of vector operand of extract, revisit the extract

Differential Revision: https://reviews.llvm.org/D55655

llvm-svn: 349051

5 years ago[CodeComplete] Set preferred type to bool on conditions
Ilya Biryukov [Thu, 13 Dec 2018 15:36:32 +0000 (15:36 +0000)]
[CodeComplete] Set preferred type to bool on conditions

Reviewers: kadircet

Reviewed By: kadircet

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D55431

llvm-svn: 349050

5 years ago[clangd] Enable cross-namespace completions by default in clangd
Eric Liu [Thu, 13 Dec 2018 15:35:43 +0000 (15:35 +0000)]
[clangd] Enable cross-namespace completions by default in clangd

Summary:
Code completion will suggest symbols from any scope (incl. inaccessible
scopes) when there's no qualifier explicitly specified. E.g.
{F7689815}

As we are assigning relatively low scores for cross-namespace completion items, the overall code completion quality doesn't regress. The feature has been tried out by a few folks, and the feedback is generally positive, so I think it should be ready to be enabled by default.

Reviewers: hokein, ilya-biryukov, kadircet

Reviewed By: hokein, ilya-biryukov

Subscribers: MaskRay, jkorous, arphaman, cfe-commits

Differential Revision: https://reviews.llvm.org/D55649

llvm-svn: 349049

5 years ago[Sparc] Add membar assembler tags
Daniel Cederman [Thu, 13 Dec 2018 15:29:12 +0000 (15:29 +0000)]
[Sparc] Add membar assembler tags

Summary: The Sparc V9 membar instruction can enforce different types of
memory orderings depending on the value in its immediate field.  In the
architectural manual the type is selected by combining different assembler
tags into a mask. This patch adds support for these tags.

Reviewers: jyknight, venkatra, brad

Reviewed By: jyknight

Subscribers: fedor.sergeev, jrtc27, jfb, llvm-commits

Differential Revision: https://reviews.llvm.org/D53491

llvm-svn: 349048

5 years ago[X86][SSE] Fix modulo rotation amounts for v8i16/v16i16/v4i32 (PR38243)
Simon Pilgrim [Thu, 13 Dec 2018 15:23:09 +0000 (15:23 +0000)]
[X86][SSE] Fix modulo rotation amounts for v8i16/v16i16/v4i32 (PR38243)

llvm-svn: 349047

5 years agoRevert r349041: [tblgen][disasm] Separate encodings from instructions
Daniel Sanders [Thu, 13 Dec 2018 15:14:21 +0000 (15:14 +0000)]
Revert r349041: [tblgen][disasm] Separate encodings from instructions

One of the GCC based bots is objecting to a vector of const EncodingAndInst's:
In file included from /usr/include/c++/8/vector:64,
                 from /export/users/atombot/llvm/clang-atom-d525-fedora-rel/llvm/utils/TableGen/CodeGenInstruction.h:22,
                 from /export/users/atombot/llvm/clang-atom-d525-fedora-rel/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp:15:
/usr/include/c++/8/bits/stl_vector.h: In instantiation of 'class std::vector<const {anonymous}::EncodingAndInst, std::allocator<const {anonymous}::EncodingAndInst> >':
/export/users/atombot/llvm/clang-atom-d525-fedora-rel/llvm/utils/TableGen/FixedLenDecoderEmitter.cpp:375:32:   required from here
/usr/include/c++/8/bits/stl_vector.h:351:21: error: static assertion failed: std::vector must have a non-const, non-volatile value_type
       static_assert(is_same<typename remove_cv<_Tp>::type, _Tp>::value,
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/8/bits/stl_vector.h:354:21: error: static assertion failed: std::vector must have the same value_type as its allocator
       static_assert(is_same<typename _Alloc::value_type, _Tp>::value,
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

llvm-svn: 349046

5 years ago[Sparc] Use float register for integer constrained with "f" in inline asm
Daniel Cederman [Thu, 13 Dec 2018 15:13:29 +0000 (15:13 +0000)]
[Sparc] Use float register for integer constrained with "f"  in inline asm

Summary:
Constraining an integer value to a floating point register using "f"
causes an llvm_unreachable to trigger. This patch allows i32 integers
to be placed in a single precision float register and i64 integers to
be placed in a double precision float register. This matches the behavior
of GCC.

For other types the llvm_unreachable is removed to instead trigger an
error message that points out the offending line.

Reviewers: jyknight, venkatra

Reviewed By: jyknight

Subscribers: eraman, fedor.sergeev, jrtc27, llvm-commits

Differential Revision: https://reviews.llvm.org/D51614

llvm-svn: 349045

5 years ago[PowerPC][NFC] Sorting out Pseudo related classes to avoid confusion
Jinsong Ji [Thu, 13 Dec 2018 15:12:57 +0000 (15:12 +0000)]
[PowerPC][NFC] Sorting out Pseudo related classes to avoid confusion

There are several Pseudo in PowerPC backend.
eg:

* ISel Pseudo-instructions , which has let usesCustomInserter=1 in td
ExpandISelPseudos -> EmitInstrWithCustomInserter will deal with them.
* Post-RA pseudo instruction, which has let isPseudo = 1 in td, or Standard pseudo (SUBREG_TO_REG,COPY etc.)
ExpandPostRAPseudos -> expandPostRAPseudo will expand them
* Multi-instruction pseudo operations will expand them PPCAsmPrinter::EmitInstruction
* Pseudo instruction in CodeEmitter, which has encoding of 0.

Currently, in td files, especially PPCInstrVSX.td,
we did not distinguish Post-RA pseudo instruction and Pseudo instruction in CodeEmitter very clearly.

This patch is to

* Rename Pseudo<> class to PPCEmitTimePseudo, which means encoding of 0 in CodeEmitter
* Introduce new class PPCPostRAExpPseudo <> for previous PostRA Pseudo
* Introduce new class PPCCustomInserterPseudo <> for previous Isel Pseudo

Differential Revision: https://reviews.llvm.org/D55143

llvm-svn: 349044

5 years ago[mir] Fix uninitialized variable in r349035 noticed by clang-atom-d525-fedora-rel...
Daniel Sanders [Thu, 13 Dec 2018 15:05:27 +0000 (15:05 +0000)]
[mir] Fix uninitialized variable in r349035 noticed by clang-atom-d525-fedora-rel and 3 other bots

llvm-svn: 349043

5 years ago[Sanitizer] capsicum further support of the API
David Carlier [Thu, 13 Dec 2018 15:05:24 +0000 (15:05 +0000)]
[Sanitizer] capsicum further support of the API

Reviewers: vitalybuka, krytarowski, emaste

Reviewed By: emaste

Differential Revision: https://reviews.llvm.org/D55622

llvm-svn: 349042

5 years ago[tblgen][disasm] Separate encodings from instructions
Daniel Sanders [Thu, 13 Dec 2018 14:55:57 +0000 (14:55 +0000)]
[tblgen][disasm] Separate encodings from instructions

Summary:
Separate the concept of an encoding from an instruction. This will enable
the definition of additional encodings for the same instruction which can
be used to support variable length instruction sets in the disassembler
(and potentially assembler but I'm not working towards that right now)
without causing an explosion in the number of Instruction records that
CodeGen then has to pick between.

Reviewers: bogner, charukcs

Reviewed By: bogner

Subscribers: kparzysz, llvm-commits

Differential Revision: https://reviews.llvm.org/D52366

llvm-svn: 349041

5 years ago[X86][SSE] Merge the vXi16/vXi32 vector rotation expansion cases. NFCI.
Simon Pilgrim [Thu, 13 Dec 2018 14:51:28 +0000 (14:51 +0000)]
[X86][SSE] Merge the vXi16/vXi32 vector rotation expansion cases. NFCI.

Merged the repeated code into a single if().

llvm-svn: 349040

5 years ago[clang-tidy] Share the forced linking code between clang-tidy tool and plugin
Ivan Donchevskii [Thu, 13 Dec 2018 14:37:17 +0000 (14:37 +0000)]
[clang-tidy] Share the forced linking code between clang-tidy tool and plugin

Extract code that forces linking to the separate header and include it in both plugin and standalone tool

Differential Revision: https://reviews.llvm.org/D55595

llvm-svn: 349038

5 years ago[SystemZ] Pass copy-hinted regs first from getRegAllocationHints().
Jonas Paulsson [Thu, 13 Dec 2018 14:37:05 +0000 (14:37 +0000)]
[SystemZ]  Pass copy-hinted regs first from getRegAllocationHints().

When computing register allocation hints for a GRX32Bit register, make sure
that any of the hinted registers that are also copy hints are returned first
in the list.

Review: Ulrich Weigand.
llvm-svn: 349037

5 years agoAdd missing Initialize/Terminate for Architecture plugins
Tatyana Krasnukha [Thu, 13 Dec 2018 14:28:25 +0000 (14:28 +0000)]
Add missing Initialize/Terminate for Architecture plugins

llvm-svn: 349036

5 years ago[mir] Serialize DILocation inline when not possible to use a metadata reference
Daniel Sanders [Thu, 13 Dec 2018 14:25:27 +0000 (14:25 +0000)]
[mir] Serialize DILocation inline when not possible to use a metadata reference

Summary:
Sometimes MIR-level passes create DILocations that were not present in the
LLVM-IR. For example, it may merge two DILocations together to produce a
DILocation that points to line 0.

Previously, the address of these DILocations were printed which prevented the
MIR from being read back into LLVM. With this patch, DILocations will use
metadata references where possible and fall back on serializing them inline like so:
    MOV32mr %stack.0.x.addr, 1, _, 0, _, %0, debug-location !DILocation(line: 1, scope: !15)

Reviewers: aprantl, vsk, arphaman

Reviewed By: aprantl

Subscribers: probinson, llvm-commits

Tags: #debug-info

Differential Revision: https://reviews.llvm.org/D55243

llvm-svn: 349035

5 years ago[X86][BWI] Don't custom lower vXi8 rotations.
Simon Pilgrim [Thu, 13 Dec 2018 13:44:33 +0000 (13:44 +0000)]
[X86][BWI] Don't custom lower vXi8 rotations.

We always expand to shifts anyhow - test changes are just different scheduling only.

llvm-svn: 349034

5 years ago[clangd] Refine the way of checking a declaration is referenced by the written code.
Haojian Wu [Thu, 13 Dec 2018 13:17:04 +0000 (13:17 +0000)]
[clangd] Refine the way of checking a declaration is referenced by the written code.

Summary:
The previous solution (checking the AST) is not a reliable way to
determine whether a declaration is explicitly referenced by the source
code, we are still missing a few cases.

Reviewers: ilya-biryukov

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

Differential Revision: https://reviews.llvm.org/D55191

llvm-svn: 349033

5 years ago[clangd] Avoid emitting Queued status when we are able to acquire the Barrier.
Haojian Wu [Thu, 13 Dec 2018 13:09:50 +0000 (13:09 +0000)]
[clangd] Avoid emitting Queued status when we are able to acquire the Barrier.

Reviewers: ilya-biryukov

Subscribers: javed.absar, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits

Differential Revision: https://reviews.llvm.org/D55359

llvm-svn: 349032

5 years ago[clangd] Move the utility function to anonymous namespace, NFC.
Haojian Wu [Thu, 13 Dec 2018 13:07:29 +0000 (13:07 +0000)]
[clangd] Move the utility function to anonymous namespace, NFC.

llvm-svn: 349031

5 years ago[NFC][PowerPC] add verify-machineinstrs check
Chen Zheng [Thu, 13 Dec 2018 12:55:42 +0000 (12:55 +0000)]
[NFC][PowerPC] add verify-machineinstrs check

After rL349029 and rL348566, sj-ctr-loop.ll is ok for verify-machineinstrs check.

llvm-svn: 349030

5 years ago[PowerPC] intrinsic llvm.eh.sjlj.setjmp should not have flag isBarrier.
Chen Zheng [Thu, 13 Dec 2018 12:25:20 +0000 (12:25 +0000)]
[PowerPC] intrinsic llvm.eh.sjlj.setjmp should not have flag isBarrier.

Differential Revision: https://reviews.llvm.org/D55499

llvm-svn: 349029

5 years ago[DAGCombine] Moved X86 rotate_amount % bitwidth == 0 early out to DAGCombiner
Simon Pilgrim [Thu, 13 Dec 2018 12:23:32 +0000 (12:23 +0000)]
[DAGCombine] Moved X86 rotate_amount % bitwidth == 0 early out to DAGCombiner

Remove common code from custom lowering (code is still safe if somehow a zero value gets used).

llvm-svn: 349028

5 years agoClassify tests in lit/Modules
Pavel Labath [Thu, 13 Dec 2018 12:13:29 +0000 (12:13 +0000)]
Classify tests in lit/Modules

We've recently developed a convention where the tests are placed into
subfolders according to the object file type. This applies that
convention to existing tests too.

llvm-svn: 349027

5 years ago[ARM GlobalISel] Support exts and truncs for Thumb2
Diana Picus [Thu, 13 Dec 2018 12:06:54 +0000 (12:06 +0000)]
[ARM GlobalISel] Support exts and truncs for Thumb2

Mark G_SEXT, G_ZEXT and G_ANYEXT to 32 bits as legal and add support for
them in the instruction selector. This uses handwritten code again
because the patterns that are generated with TableGen are tuned for what
the DAG combiner would produce and not for simple sext/zext nodes.
Luckily, we only need to update the opcodes to use the Thumb2 variants,
everything else can be reused from ARM.

llvm-svn: 349026

5 years ago[TargetLowering] Add ISD::ROTL/ROTR vector expansion
Simon Pilgrim [Thu, 13 Dec 2018 11:20:48 +0000 (11:20 +0000)]
[TargetLowering] Add ISD::ROTL/ROTR vector expansion

Move existing rotation expansion code into TargetLowering and set it up for vectors as well.

Ideally this would share more of the funnel shift expansion, but we handle the shift amount modulo quite differently at the moment.

Begun removing x86 vector rotate custom lowering to use the expansion.

llvm-svn: 349025

5 years ago[ELF][AArch64] Fix adrp to undefined weak reference.
Peter Smith [Thu, 13 Dec 2018 11:13:01 +0000 (11:13 +0000)]
[ELF][AArch64] Fix adrp to undefined weak reference.

In the ABI for the 64-bit Arm architecture the section on weak references
states:
During linking, the symbol value of an undefined weak reference is:
- Zero if the relocation type is absolute
- The address of the place if the relocation type is pc-relative.

The relocations associated with an ADRP are relative so we should resolve
the undefined weak reference to the place instead of 0. This matches GNU
ld.bfd behaviour.

fixes pr34928

Differential Revision: https://reviews.llvm.org/D55599

llvm-svn: 349024

5 years ago[RISCV] Add support for the various RISC-V FMA instruction variants
Alex Bradbury [Thu, 13 Dec 2018 10:49:05 +0000 (10:49 +0000)]
[RISCV] Add support for the various RISC-V FMA instruction variants

Adds support for the various RISC-V FMA instructions (fmadd, fmsub, fnmsub, fnmadd).

The criteria for choosing whether a fused add or subtract is used, as well as
whether the product is negated or not, is whether some of the arguments to the
llvm.fma.* intrinsic are negated or not. In the tests, extraneous fadd
instructions were added to avoid the negation being performed using a xor
trick, which prevented the proper FMA forms from being selected and thus
tested.

The FMA instruction patterns might seem incorrect (e.g., fnmadd: -rs1 * rs2 -
rs3), but they should be correct. The misleading names were inherited from
MIPS, where the negation happens after computing the sum.

The llvm.fmuladd.* intrinsics still do not generate RISC-V FMA instructions,
as that depends on TargetLowering::isFMAFasterthanFMulAndFAdd.

Some comments in the test files about what type of instructions are there
tested were updated, to better reflect the current content of those test
files.

Differential Revision: https://reviews.llvm.org/D54205
Patch by Luís Marques.

llvm-svn: 349023

5 years ago[AArch64] Catch some more CMN opportunities.
Arnaud A. de Grandmaison [Thu, 13 Dec 2018 10:31:32 +0000 (10:31 +0000)]
[AArch64] Catch some more CMN opportunities.

Fixes https://bugs.llvm.org/show_bug.cgi?id=33486

llvm-svn: 349022

5 years agoAdd a new interceptors for cdbr(3) and cdbw(3) API from NetBSD
Kamil Rytarowski [Thu, 13 Dec 2018 10:19:00 +0000 (10:19 +0000)]
Add a new interceptors for cdbr(3) and cdbw(3) API from NetBSD

Summary:
cdb - formats of the constant database.

cdbr, cdbr_open, cdbr_open_mem, cdbr_entries, cdbr_get, cdbr_find,
cdbr_close - constant database access methods.

cdbw_open, cdbw_put, cdbw_put_data, cdbw_put_key, cdbw_stable_seeder,
cdbw_output, cdbw_close - creates constant databases.

Add a dedicated test for this API.

Reviewers: vitalybuka, joerg

Reviewed By: vitalybuka

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

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D55167

llvm-svn: 349021

5 years agoFix for clang interface update
Mikael Nilsson [Thu, 13 Dec 2018 10:17:26 +0000 (10:17 +0000)]
Fix for clang interface update

FunctionProtoType.TypeQuals is now a Qualifiers object instead of an
integer.

The related clang commit: r349019

llvm-svn: 349020

5 years ago[OpenCL] Add generic AS to 'this' pointer
Mikael Nilsson [Thu, 13 Dec 2018 10:15:27 +0000 (10:15 +0000)]
[OpenCL] Add generic AS to 'this' pointer

Address spaces are cast into generic before invoking the constructor.

Added support for a trailing Qualifiers object in FunctionProtoType.

Note: This recommits the previously reverted patch,
      but now it is commited together with a fix for lldb.

Differential Revision: https://reviews.llvm.org/D54862

llvm-svn: 349019

5 years agoAdd new interceptors for vis(3) API in NetBSD
Kamil Rytarowski [Thu, 13 Dec 2018 10:14:01 +0000 (10:14 +0000)]
Add new interceptors for vis(3) API in NetBSD

Summary:
Add interceptors for the NetBSD style of vis(3) present inside libc:

 - vis
 - nvis
 - strvis
 - stravis
 - strnvis
 - strvisx
 - strnvisx
 - strenvisx
 - svis
 - snvis
 - strsvis
 - strsnvis
 - strsvisx
 - strsnvisx
 - strsenvisx
 - unvis
 - strunvis
 - strnunvis
 - strunvisx
 - strnunvisx

Add a dedicated test verifying the installed interceptors.

Based on original work by Yang Zheng.

Reviewers: vitalybuka, joerg

Reviewed By: vitalybuka

Subscribers: tomsun.0.7, kubamracek, llvm-commits, mgorny, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D54594

llvm-svn: 349018

5 years agoFix for bugzilla https://bugs.llvm.org/show_bug.cgi?id=39970
Andrey Churbanov [Thu, 13 Dec 2018 10:04:10 +0000 (10:04 +0000)]
Fix for bugzilla https://bugs.llvm.org/show_bug.cgi?id=39970

Broken tests fixed

Differential Revision: https://reviews.llvm.org/D55598

llvm-svn: 349017

5 years ago[CodeGen] Allow mempcy/memset to generate small overlapping stores.
Clement Courbet [Thu, 13 Dec 2018 09:56:19 +0000 (09:56 +0000)]
[CodeGen] Allow mempcy/memset to generate small overlapping stores.

Summary:
All targets either just return false here or properly model `Fast`, so I
don't think there is any reason to prevent CodeGen from doing the right
thing here.

Subscribers: nemanjai, javed.absar, eraman, jsji, llvm-commits

Differential Revision: https://reviews.llvm.org/D55365

llvm-svn: 349016

5 years ago[asan] Don't check ODR violations for particular types of globals
Vitaly Buka [Thu, 13 Dec 2018 09:47:39 +0000 (09:47 +0000)]
[asan] Don't check ODR violations for particular types of globals

Summary:
private and internal: should not trigger ODR at all.
unnamed_addr: current ODR checking approach fail and rereport false violation if
a linker merges such globals
linkonce_odr, weak_odr: could cause similar problems and they are already not
instrumented for ELF.

Reviewers: eugenis, kcc

Subscribers: kubamracek, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D55621

llvm-svn: 349015

5 years agoAMDGPU/GlobalISel: Legalize f64 fadd/fmul
Matt Arsenault [Thu, 13 Dec 2018 08:27:48 +0000 (08:27 +0000)]
AMDGPU/GlobalISel: Legalize f64 fadd/fmul

llvm-svn: 349014

5 years agoFix missing C++ mode comment in header
Matt Arsenault [Thu, 13 Dec 2018 08:23:56 +0000 (08:23 +0000)]
Fix missing C++ mode comment in header

llvm-svn: 349013

5 years agoAMDGPU/GlobalISel: RegBankSelect some simple operations
Matt Arsenault [Thu, 13 Dec 2018 08:23:51 +0000 (08:23 +0000)]
AMDGPU/GlobalISel: RegBankSelect some simple operations

llvm-svn: 349012

5 years agoAMDGPU/GlobalISel: Test cleanups
Matt Arsenault [Thu, 13 Dec 2018 08:11:45 +0000 (08:11 +0000)]
AMDGPU/GlobalISel: Test cleanups

Remove IR and registers sections

llvm-svn: 349011

5 years agoPortable Python script across Python version
Serge Guelton [Thu, 13 Dec 2018 07:45:55 +0000 (07:45 +0000)]
Portable Python script across Python version

SocketServer has been renamed socketserver in Python3.

Differential Revision: https://reviews.llvm.org/D55258

llvm-svn: 349010

5 years agoPortable Python script across Python version
Serge Guelton [Thu, 13 Dec 2018 07:44:19 +0000 (07:44 +0000)]
Portable Python script across Python version

Queue module as been renamed into queue in Python3

Differential Revision: https://reviews.llvm.org/D55202

llvm-svn: 349009

5 years agoPortable Python script across Python version
Serge Guelton [Thu, 13 Dec 2018 07:42:30 +0000 (07:42 +0000)]
Portable Python script across Python version

Use higher-level and more compatible threading module to start a new thread.

Differential Revision: https://reviews.llvm.org/D55259

llvm-svn: 349008

5 years ago[X86] Remove assert leftover from when i1 was a legal type. Add more accurate assert...
Craig Topper [Thu, 13 Dec 2018 06:14:25 +0000 (06:14 +0000)]
[X86] Remove assert leftover from when i1 was a legal type. Add more accurate assert. NFC

llvm-svn: 349007

5 years ago[AMDGPU] Fix build failure, second attempt
Stanislav Mekhanoshin [Thu, 13 Dec 2018 05:52:11 +0000 (05:52 +0000)]
[AMDGPU] Fix build failure, second attempt

Some compilers complain that variable is captured and some
complain when it is not. Switch to [&].

llvm-svn: 349006

5 years ago[AMDGPU] Fix build failure
Stanislav Mekhanoshin [Thu, 13 Dec 2018 05:21:25 +0000 (05:21 +0000)]
[AMDGPU] Fix build failure

Fixed error 'lambda capture 'CondReg' is not required to be captured
for this use'.

llvm-svn: 349005

5 years ago[clang] Add AST matcher for block expressions 🔍
Stephane Moore [Thu, 13 Dec 2018 03:35:10 +0000 (03:35 +0000)]
[clang] Add AST matcher for block expressions 🔍

Summary:
This change adds a new AST matcher for block expressions.

Test Notes:
Ran the clang unit tests.

Reviewers: aaron.ballman

Reviewed By: aaron.ballman

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D55546

llvm-svn: 349004

5 years ago[AMDGPU] Simplify negated condition
Stanislav Mekhanoshin [Thu, 13 Dec 2018 03:17:40 +0000 (03:17 +0000)]
[AMDGPU] Simplify negated condition

Optimize sequence:

  %sel = V_CNDMASK_B32_e64 0, 1, %cc
  %cmp = V_CMP_NE_U32 1, %1
  $vcc = S_AND_B64 $exec, %cmp
  S_CBRANCH_VCC[N]Z
=>
  $vcc = S_ANDN2_B64 $exec, %cc
  S_CBRANCH_VCC[N]Z

It is the negation pattern inserted by DAGCombiner::visitBRCOND() in the
rebuildSetCC().

Differential Revision: https://reviews.llvm.org/D55402

llvm-svn: 349003

5 years agoRevert r348645 - "[MemCpyOpt] memset->memcpy forwarding with undef tail"
David L. Jones [Thu, 13 Dec 2018 03:15:11 +0000 (03:15 +0000)]
Revert r348645 - "[MemCpyOpt] memset->memcpy forwarding with undef tail"

This revision caused trucated memsets for structs with padding. See:
http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20181210/610520.html

llvm-svn: 349002

5 years agoRemove unused Args parameter from EmitFunctionBody, NFC
Reid Kleckner [Thu, 13 Dec 2018 01:33:20 +0000 (01:33 +0000)]
Remove unused Args parameter from EmitFunctionBody, NFC

llvm-svn: 349001

5 years ago[analyzer] RunLoopAutoreleaseLeakChecker: Come up with a test for r348822.
Artem Dergachev [Thu, 13 Dec 2018 01:30:47 +0000 (01:30 +0000)]
[analyzer] RunLoopAutoreleaseLeakChecker: Come up with a test for r348822.

Statement memoization was removed in r348822 because it was noticed to cause
memory corruption. This was happening because a reference to an object
in a DenseMap was used after being invalidated by inserting a new key
into the map.

This test case crashes reliably under ASan (i.e., when Clang is built with
-DLLVM_USE_SANITIZER="Address") on at least some machines before r348822
and doesn't crash after it.

llvm-svn: 349000