platform/upstream/llvm.git
6 years ago[SROA] Preserve DebugLoc when rewriting alloca partitions
Anastasis Grammenos [Thu, 28 Jun 2018 18:58:30 +0000 (18:58 +0000)]
[SROA] Preserve DebugLoc when rewriting alloca partitions

When rewriting an alloca partition copy the DL from the
old alloca over the the new one.

Differential Revision: https://reviews.llvm.org/D48640

llvm-svn: 335904

6 years agoHandle absolute symbols as branch targets in disassembly.
Sterling Augustine [Thu, 28 Jun 2018 18:57:13 +0000 (18:57 +0000)]
Handle absolute symbols as branch targets in disassembly.

https://reviews.llvm.org/D48554

llvm-svn: 335903

6 years agoAdd a flag to FileOutputBuffer that allows modification.
Zachary Turner [Thu, 28 Jun 2018 18:49:09 +0000 (18:49 +0000)]
Add a flag to FileOutputBuffer that allows modification.

FileOutputBuffer creates a temp file and on commit atomically
renames the temp file to the destination file.  Sometimes we
want to modify an existing file in place, but still have the
atomicity guarantee.  To do this we can initialize the contents
of the temp file from the destination file (if it exists), that
way the resulting FileOutputBuffer can have only selective
bytes modified.  Committing will then atomically replace the
destination file as desired.

llvm-svn: 335902

6 years agoRemove unnecessary semicolon. NFCI.
Simon Pilgrim [Thu, 28 Jun 2018 18:37:16 +0000 (18:37 +0000)]
Remove unnecessary semicolon. NFCI.

Fixes -Wpedantic warning.

llvm-svn: 335901

6 years ago[CMake] Respect CMAKE_STRIP and CMAKE_DSYMUTIL on apple platforms
Justin Bogner [Thu, 28 Jun 2018 18:36:52 +0000 (18:36 +0000)]
[CMake] Respect CMAKE_STRIP and CMAKE_DSYMUTIL on apple platforms

This allows overriding the strip and dsymutil tools, and updates
iOS.cmake to do so. I've also added libtool to iOS.cmake, but it was
already respecting CMAKE_LIBTOOL if set.

llvm-svn: 335900

6 years ago[CMake] Rename cxx_headers back to cxx-headers.
Ahmed Bougacha [Thu, 28 Jun 2018 18:35:35 +0000 (18:35 +0000)]
[CMake] Rename cxx_headers back to cxx-headers.

r334477 renamed the cxx-headers target to cxx_headers, but various
pieces sort-of expect the target names to match the component (e.g.,
LLVM_DISTRIBUTION_COMPONENTS in the various bootstrap caches, which, via
some magic foreign to me, seems to expect cxx-headers,
install-cxx-headers, and install-cxx-headers-stripped to exist.)

Revert back to cxx-headers.

Differential Revision: https://reviews.llvm.org/D48701

llvm-svn: 335899

6 years ago[CMake] Make bootstrap and compiler-rt depend on cxx-headers.
Ahmed Bougacha [Thu, 28 Jun 2018 18:35:25 +0000 (18:35 +0000)]
[CMake] Make bootstrap and compiler-rt depend on cxx-headers.

Since r334468, we no longer always copy the libcxx headers by virtue of
their presence when cmake runs.

This makes some of the later stages (compiler-rt, and the bootstrapped
stages) depend on them being copied, via the cxx-headers target.

Differential Revision: https://reviews.llvm.org/D48700

llvm-svn: 335898

6 years ago[Debugify] Do not report line 0 locations as errors
Vedant Kumar [Thu, 28 Jun 2018 18:21:11 +0000 (18:21 +0000)]
[Debugify] Do not report line 0 locations as errors

The checking logic should not treat artificial locations as being
somehow problematic. Producing these locations can be the desired
behavior of some passes.

See llvm.org/PR37961.

llvm-svn: 335897

6 years agoSet the line ending of clang.natvis to CRLF.
Aaron Ballman [Thu, 28 Jun 2018 18:03:00 +0000 (18:03 +0000)]
Set the line ending of clang.natvis to CRLF.

This corresponds to r335889, which does the same thing for llvm.natvis.

llvm-svn: 335896

6 years ago[X86] Suppress load folding into and/or/xor if it will prevent matching btr/bts/btc.
Craig Topper [Thu, 28 Jun 2018 17:58:01 +0000 (17:58 +0000)]
[X86] Suppress load folding into and/or/xor if it will prevent matching btr/bts/btc.

This is a follow up to r335753. At the time I forgot about isProfitableToFold which makes this pretty easy.

Differential Revision: https://reviews.llvm.org/D48706

llvm-svn: 335895

6 years agoRevert "Re-land r335297 "[X86] Implement more of x86-64 large and medium PIC code...
Jonas Devlieghere [Thu, 28 Jun 2018 17:56:43 +0000 (17:56 +0000)]
Revert "Re-land r335297 "[X86] Implement more of x86-64 large and medium PIC code models""

Reverting because this is causing failures in the LLDB test suite on
GreenDragon.

  LLVM ERROR: unsupported relocation with subtraction expression, symbol
  '__GLOBAL_OFFSET_TABLE_' can not be undefined in a subtraction
  expression

llvm-svn: 335894

6 years agoRevert "[OrcMCJIT] Fix test after r335508 causing it to fail on green dragon"
Jonas Devlieghere [Thu, 28 Jun 2018 17:56:27 +0000 (17:56 +0000)]
Revert "[OrcMCJIT] Fix test after r335508 causing it to fail on green dragon"

This reverts commit a6b904daa1d55e31187c85e5b54ef2ddc37fa713.

llvm-svn: 335893

6 years ago2 VS natvis improvements.
Zachary Turner [Thu, 28 Jun 2018 17:55:54 +0000 (17:55 +0000)]
2 VS natvis improvements.

Optional<T> was broken due to a change in the class's internals.
That is fixed, and additionally a visualizer is added for
Expected<T>.

llvm-svn: 335892

6 years ago[Darwin] Add an integration test for PGO + symbol exports
Vedant Kumar [Thu, 28 Jun 2018 17:53:43 +0000 (17:53 +0000)]
[Darwin] Add an integration test for PGO + symbol exports

rdar://41470205

llvm-svn: 335891

6 years ago[Darwin] Remove _VPMergeHook from the auto-export list
Vedant Kumar [Thu, 28 Jun 2018 17:53:35 +0000 (17:53 +0000)]
[Darwin] Remove _VPMergeHook from the auto-export list

Remove _VPMergeHook from Darwin's automatically-exported symbol list for
PGO. As of r328987 this symbol is no longer weak.

An integration test in compiler-rt will follow.

rdar://41470205

llvm-svn: 335890

6 years agoSet line ending style of llvm.natvis to CRLF.
Zachary Turner [Thu, 28 Jun 2018 17:52:06 +0000 (17:52 +0000)]
Set line ending style of llvm.natvis to CRLF.

This file is used by MSVC which is obviously a Windows-only tool and prefers windows line endings.

llvm-svn: 335889

6 years ago[InstCombine] allow shl+mul combos with shuffle (select) fold (PR37806)
Sanjay Patel [Thu, 28 Jun 2018 17:48:04 +0000 (17:48 +0000)]
[InstCombine] allow shl+mul combos with shuffle (select) fold (PR37806)

This is an enhancement to D48401 that was discussed in:
https://bugs.llvm.org/show_bug.cgi?id=37806

We can convert a shift-left-by-constant into a multiply (we canonicalize IR in the other
direction because that's generally better of course). This allows us to remove the shuffle
as we do in the regular opcodes-are-the-same cases.

This requires a small hack to make sure we don't introduce any extra poison:
https://rise4fun.com/Alive/ZGv

Other examples of opcodes where this would work are add+sub and fadd+fsub, but we already
canonicalize those subs into adds, so there's nothing to do for those cases AFAICT. There
are planned enhancements for opcode transforms such or -> add.

Note that there's a different fold needed if we've already managed to simplify away a binop
as seen in the test based on PR37806, but we manage to get that one case here because this
fold is positioned above the demanded elements fold currently.

Differential Revision: https://reviews.llvm.org/D48485

llvm-svn: 335888

6 years ago[MachineOutliner] Define MachineOutliner support in TargetOptions
Jessica Paquette [Thu, 28 Jun 2018 17:45:43 +0000 (17:45 +0000)]
[MachineOutliner] Define MachineOutliner support in TargetOptions

Targets should be able to define whether or not they support the outliner
without the outliner being added to the pass pipeline. Before this, the
outliner pass would be added, and ask the target whether or not it supports the
outliner.

After this, it's possible to query the target in TargetPassConfig, before the
outliner pass is created. This ensures that passing -enable-machine-outliner
will not modify the pass pipeline of any target that does not support it.

https://reviews.llvm.org/D48683

llvm-svn: 335887

6 years ago[DAGCombiner] Ensure we use the correct CC result type in visitSDIV (REAPPLIED)
Simon Pilgrim [Thu, 28 Jun 2018 17:33:41 +0000 (17:33 +0000)]
[DAGCombiner] Ensure we use the correct CC result type in visitSDIV (REAPPLIED)

We could get away with it for constant folded cases, but not for rL335719.

Thanks to Krzysztof Parzyszek for noticing.

Reapply original commit rL335821 which was reverted at rL335871 due to a WebAssembly bug that was fixed at rL335884.

llvm-svn: 335886

6 years ago[llvm-mca] Delete Pipeline's copy ctor and assignement operator.
Matt Davis [Thu, 28 Jun 2018 17:33:24 +0000 (17:33 +0000)]
[llvm-mca] Delete Pipeline's copy ctor and assignement operator.

Prevent copying of the Pipeline.

llvm-svn: 335885

6 years ago[WebAssembly] Add getSetCCResultType placeholder override to handle vector compare...
Simon Pilgrim [Thu, 28 Jun 2018 17:27:09 +0000 (17:27 +0000)]
[WebAssembly] Add getSetCCResultType placeholder override to handle vector compare results.

Necessary to get the rL335821 bugfix (which was reverted at rL335871) un-reverted.

llvm-svn: 335884

6 years agoRevert "[MachineOutliner] Add always and never options to -enable-machine-outliner"
Jessica Paquette [Thu, 28 Jun 2018 17:26:19 +0000 (17:26 +0000)]
Revert "[MachineOutliner] Add always and never options to -enable-machine-outliner"

I accidentally committed this instead of D48683 because I haven't had coffee
yet.

llvm-svn: 335883

6 years agoRevert "[MachineOutliner] Never add the outliner in -O0"
Jessica Paquette [Thu, 28 Jun 2018 17:26:18 +0000 (17:26 +0000)]
Revert "[MachineOutliner] Never add the outliner in -O0"

This reverts commit 9c7c10e4073a0bc6a759ce5cd33afbac74930091.

It relies on r335872 since that introduces the machine outliner
flags test. I meant to commit D48683 in that commit, but got mixed
up and committed D48682 instead. So, I'm reverting this and
r335872, since D48682 hasn't made it through review yet.

llvm-svn: 335882

6 years ago[WebAssembly] Fix --export of LTO symbols
Sam Clegg [Thu, 28 Jun 2018 17:21:46 +0000 (17:21 +0000)]
[WebAssembly] Fix --export of LTO symbols

Differential Revision: https://reviews.llvm.org/D48697

llvm-svn: 335881

6 years ago[CUDA] Place all CUDA sections in __NV_CUDA segment on Mac.
Artem Belevich [Thu, 28 Jun 2018 17:15:52 +0000 (17:15 +0000)]
[CUDA] Place all CUDA sections in __NV_CUDA segment on Mac.

That's where CUDA binaries appear to put them.

Differential Revision: https://reviews.llvm.org/D48615

llvm-svn: 335880

6 years ago[MachineOutliner] Never add the outliner in -O0
Jessica Paquette [Thu, 28 Jun 2018 17:05:57 +0000 (17:05 +0000)]
[MachineOutliner] Never add the outliner in -O0

We shouldn't add the outliner when compiling at -O0 even if
-enable-machine-outliner is passed in. This makes sure that we
don't add it in this case.

This also updates machine-outliner-flags to reflect the change
and improves the comment describing what that test does.

llvm-svn: 335879

6 years ago[WebAssembly] Add support for bitcode archive members
Sam Clegg [Thu, 28 Jun 2018 17:04:58 +0000 (17:04 +0000)]
[WebAssembly] Add support for bitcode archive members

This change effects the behavior of --export-all. Previously
--export-all would only effect symbols that survived GC. Now
--export-all will prevent any non-local symbols from being GCed.

Differential Revision: https://reviews.llvm.org/D48673

llvm-svn: 335878

6 years agoSelectionDAGBuilder, mach-o: Skip trap after noreturn call (for Mach-O)
Matthias Braun [Thu, 28 Jun 2018 17:00:45 +0000 (17:00 +0000)]
SelectionDAGBuilder, mach-o: Skip trap after noreturn call (for Mach-O)

Add NoTrapAfterNoreturn target option which skips emission of traps
behind noreturn calls even if TrapUnreachable is enabled.

Enable the feature on Mach-O to save code size; Comments suggest it is
not possible to enable it for the other users of TrapUnreachable.

rdar://41530228

DifferentialRevision: https://reviews.llvm.org/D48674
llvm-svn: 335877

6 years ago[clang-format] Do not format raw string literals inside a recognized function with...
Krasimir Georgiev [Thu, 28 Jun 2018 16:58:24 +0000 (16:58 +0000)]
[clang-format] Do not format raw string literals inside a recognized function with a non-recognized delimiter

Summary:
This stops clang-format from touching raw string contents with unrecognized delimiters inside recognized functions.
Unrecognized delimiters signal that the string might be special.

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D48728

llvm-svn: 335876

6 years ago[WebAssembly] LTO: Fix signatures of undefined functions in bitcode
Sam Clegg [Thu, 28 Jun 2018 16:53:53 +0000 (16:53 +0000)]
[WebAssembly] LTO: Fix signatures of undefined functions in bitcode

Function symbols that come from bitcode have not signatures.
After LTO when the real symbols are read in we need to make
sure that we set the signature on the existing symbol.
the signature-less undefined functions.

Differential Revision: https://reviews.llvm.org/D48693

llvm-svn: 335875

6 years ago[clangd] Use log10 instead of the natural logrithm for usage boost.
Eric Liu [Thu, 28 Jun 2018 16:51:12 +0000 (16:51 +0000)]
[clangd] Use log10 instead of the natural logrithm for usage boost.

llvm-svn: 335874

6 years agoSkip building TSan on platforms where there are no 64-bit architectures.
Kuba Mracek [Thu, 28 Jun 2018 16:43:43 +0000 (16:43 +0000)]
Skip building TSan on platforms where there are no 64-bit architectures.

llvm-svn: 335873

6 years ago[MachineOutliner] Add always and never options to -enable-machine-outliner
Jessica Paquette [Thu, 28 Jun 2018 16:39:42 +0000 (16:39 +0000)]
[MachineOutliner] Add always and never options to -enable-machine-outliner

To enable the MachineOutliner by default on AArch64, we need to be able to
disable the MachineOutliner and also provide an option to "always" enable the
outliner.

This adds that capability. It allows the user to still use the old
-enable-machine-outliner option, which defaults to "always". This is building
up to allowing the user to specify "always" versus the target-default
outlining behaviour.

llvm-svn: 335872

6 years agoRevert "[DAGCombiner] Ensure we use the correct CC result type in visitSDIV"
Haojian Wu [Thu, 28 Jun 2018 16:25:57 +0000 (16:25 +0000)]
Revert "[DAGCombiner] Ensure we use the correct CC result type in visitSDIV"

This reverts commit r335821.

This crashes the webassembly test, run "ninja check-llvm-codegen-webassembly" to reproduce.

llvm-svn: 335871

6 years ago[llvm-mca][x86] Add FMA4 resource tests
Simon Pilgrim [Thu, 28 Jun 2018 16:24:13 +0000 (16:24 +0000)]
[llvm-mca][x86] Add FMA4 resource tests

We should be ensuring we have (near) complete test coverage of instructions, at least for the generic model.

llvm-svn: 335870

6 years ago[llvm-mca][x86] Add 3dnow! resource tests
Simon Pilgrim [Thu, 28 Jun 2018 16:21:22 +0000 (16:21 +0000)]
[llvm-mca][x86] Add 3dnow! resource tests

We should be ensuring we have (near) complete test coverage of instructions, at least for the generic model.

llvm-svn: 335869

6 years ago[AMDGPU] Early expansion of 32 bit udiv/urem
Stanislav Mekhanoshin [Thu, 28 Jun 2018 15:59:18 +0000 (15:59 +0000)]
[AMDGPU] Early expansion of 32 bit udiv/urem

This allows hoisting of a common code, for instance if denominator
is loop invariant. Current change is expansion only, adding licm to
the target pass list going to be a separate patch. Given this patch
changes to codegen are minor as the expansion is similar to that on
DAG. DAG expansion still must remain for R600.

Differential Revision: https://reviews.llvm.org/D48586

llvm-svn: 335868

6 years ago[llvm-mca] Use a WriteRef to describe register writes in class RegisterFile.
Andrea Di Biagio [Thu, 28 Jun 2018 15:50:26 +0000 (15:50 +0000)]
[llvm-mca] Use a WriteRef to describe register writes in class RegisterFile.

This patch introduces a new class named WriteRef. A WriteRef is used by the
RegisterFile to keep track of register definitions. Internally it wraps a
WriteState, as well as the source index of the defining instruction.

This patch allows the tool to propagate additional information to support future
analysis on data dependencies.

llvm-svn: 335867

6 years ago[AMDGPU] Overload llvm.amdgcn.fmad.ftz to support f16
Stanislav Mekhanoshin [Thu, 28 Jun 2018 15:24:46 +0000 (15:24 +0000)]
[AMDGPU] Overload llvm.amdgcn.fmad.ftz to support f16

Differential Revision: https://reviews.llvm.org/D48677

llvm-svn: 335866

6 years agoCorrect the test modified in rL335777.
Haojian Wu [Thu, 28 Jun 2018 15:24:34 +0000 (15:24 +0000)]
Correct the test modified in rL335777.

llvm-svn: 335865

6 years agolld-link: align sections to 16 bytes if referenced from the gfids table
Bob Haarman [Thu, 28 Jun 2018 15:22:40 +0000 (15:22 +0000)]
lld-link: align sections to 16 bytes if referenced from the gfids table

Summary:
Control flow guard works best when targets it checks are 16-byte aligned.
Microsoft's link.exe helps ensure this by aligning code from sections
that are referenced from the gfids table to 16 bytes when linking with
-guard:cf, even if the original section specifies a smaller alignment.
This change implements that behavior in lld-link.

See https://crbug.com/857012 for more details.

Reviewers: ruiu, hans, thakis, zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48690

llvm-svn: 335864

6 years ago[clang-tidy] misc-unused-parameters - retain old behavior under StrictMode
Alexander Kornienko [Thu, 28 Jun 2018 15:21:25 +0000 (15:21 +0000)]
[clang-tidy] misc-unused-parameters - retain old behavior under StrictMode

Summary: This addresses https://bugs.llvm.org/show_bug.cgi?id=37467.

Reviewers: klimek, ilya-biryukov, lebedev.ri, aaron.ballman

Reviewed By: lebedev.ri, aaron.ballman

Subscribers: aaron.ballman, lebedev.ri, xazax.hun, cfe-commits

Differential Revision: https://reviews.llvm.org/D46951

llvm-svn: 335863

6 years ago[PhiValues] Adjust unit test to invalidate instructions before deleting them
John Brawn [Thu, 28 Jun 2018 15:17:07 +0000 (15:17 +0000)]
[PhiValues] Adjust unit test to invalidate instructions before deleting them

This should fix a sanitizer buildbot failure.

llvm-svn: 335862

6 years ago[DEBUG_INFO, NVPTX] Add test for .debug_loc section, NFC.
Alexey Bataev [Thu, 28 Jun 2018 15:14:58 +0000 (15:14 +0000)]
[DEBUG_INFO, NVPTX] Add test for .debug_loc section, NFC.

llvm-svn: 335861

6 years ago[dsymutil] Use UnitListTy consistently (NFC)
Jonas Devlieghere [Thu, 28 Jun 2018 15:01:42 +0000 (15:01 +0000)]
[dsymutil] Use UnitListTy consistently (NFC)

Use the UnitListTy typedef consistently throughout the Dwarf linker and
pass it by const reference where possible.

llvm-svn: 335860

6 years agoSkip core file tests on build configurations lacking necessary components
Pavel Labath [Thu, 28 Jun 2018 14:23:04 +0000 (14:23 +0000)]
Skip core file tests on build configurations lacking necessary components

Summary:
To successfully open a core file, we need to have LLVM built with
support for the relevant target. Right now, if one does not have the
appropriate targets configured, the tests will fail.

This patch uses the GetBuildConfiguration SB API to inform the test (and
anyone else who cares) about the list of supported LLVM targets. The
test then uses this information to approriately skip the tests.

Reviewers: clayborg, jingham

Subscribers: martong, lldb-commits

Differential Revision: https://reviews.llvm.org/D48641

llvm-svn: 335859

6 years agoFix test that was failing on Windows due to too many backslashes
Filipe Cabecinhas [Thu, 28 Jun 2018 14:16:13 +0000 (14:16 +0000)]
Fix test that was failing on Windows due to too many backslashes

llvm-svn: 335858

6 years agoAdd a PhiValuesAnalysis pass to calculate the underlying values of phis
John Brawn [Thu, 28 Jun 2018 14:13:06 +0000 (14:13 +0000)]
Add a PhiValuesAnalysis pass to calculate the underlying values of phis

This pass is being added in order to make the information available to BasicAA,
which can't do caching of this information itself, but possibly this information
may be useful for other passes.

Incorporates code based on Daniel Berlin's implementation of Tarjan's algorithm.

Differential Revision: https://reviews.llvm.org/D47893

llvm-svn: 335857

6 years agoOpenBSD driver needs ld.lld in sanitizer context
David Carlier [Thu, 28 Jun 2018 13:49:41 +0000 (13:49 +0000)]
OpenBSD driver needs ld.lld in sanitizer context

Base GNU ld is pretty ancient and does not support --dynamic-list flag.
For conveniency, we can it automatically when compile with ubsan sanitizer flag.

Reviewers: dberris

Reviewed by: dberris

Differential Revision: https://reviews.llvm.org/D48574

llvm-svn: 335856

6 years ago[ELF] - EhFrame.cpp: add test case to check "CIE is too small" error message.
George Rimar [Thu, 28 Jun 2018 13:46:49 +0000 (13:46 +0000)]
[ELF] - EhFrame.cpp: add test case to check "CIE is too small" error message.

The following line of code was untested:
https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L94

Patch adds a test case.

llvm-svn: 335855

6 years agoFix unittest build with GCC older than 5.
Benjamin Kramer [Thu, 28 Jun 2018 13:31:36 +0000 (13:31 +0000)]
Fix unittest build with GCC older than 5.

Old GCCs have an annoying bug where RVO disables the automatic
conversion to base for unique_ptr. Add a pessimizing std::move as a
workaround.

llvm-svn: 335854

6 years ago[ODRHash] Do not rely on Type* when computing the hash.
Vassil Vassilev [Thu, 28 Jun 2018 13:28:44 +0000 (13:28 +0000)]
[ODRHash] Do not rely on Type* when computing the hash.

ODRHash aims to provide Cross-TU stable hashing. Making clang::Type pointer
part of the hash connects (remotely) the ODRHash with the TU-specific
::Profile hasher.

r332281 exposed the issue by changing the way the ASTContext different
elaborated types if there is an owning tag. In that case, ODRHash stores two
 different types in its TypeMap which yields false ODR violation in modules.

The current state of implementation shouldn't need the TypeMap concept
anymore. Rip it out.

Differential Revision: https://reviews.llvm.org/D48524

llvm-svn: 335853

6 years ago[ELF] - EhFrame.cpp: add test case to cover "corrupted CIE" error message.
George Rimar [Thu, 28 Jun 2018 13:24:39 +0000 (13:24 +0000)]
[ELF] - EhFrame.cpp: add test case to cover "corrupted CIE" error message.

This is to test the following line that was uncovered by LLD test cases yet:
https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L149

llvm-svn: 335852

6 years agoRevert "Add support for generating a call graph profile from Branch Frequency Info."
Benjamin Kramer [Thu, 28 Jun 2018 13:15:03 +0000 (13:15 +0000)]
Revert "Add support for generating a call graph profile from Branch Frequency Info."

This reverts commits r335794 and r335797. Breaks ThinLTO+FDO selfhost.

llvm-svn: 335851

6 years ago[ARM] Parallel DSP Pass
Sjoerd Meijer [Thu, 28 Jun 2018 12:55:29 +0000 (12:55 +0000)]
[ARM] Parallel DSP Pass

Armv6 introduced instructions to perform 32-bit SIMD operations. The purpose of
this pass is to do some straightforward IR pattern matching to create ACLE DSP
intrinsics, which map on these 32-bit SIMD operations.

Currently, only the SMLAD instruction gets recognised. This instruction
performs two multiplications with 16-bit operands, and stores the result in an
accumulator. We will follow this up with patches to recognise SMLAD in more
cases, and also to generate other DSP instructions (like e.g. SADD16).

Patch by: Sam Parker and Sjoerd Meijer

Differential Revision: https://reviews.llvm.org/D48128

llvm-svn: 335850

6 years ago[ELF] - EhFrame.cpp: add test case to cover "DW_EH_PE_aligned encoding is not support...
George Rimar [Thu, 28 Jun 2018 12:46:56 +0000 (12:46 +0000)]
[ELF] - EhFrame.cpp: add test case to cover "DW_EH_PE_aligned encoding is not supported" error.

It is https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L144,
and we had no test case to cover it.

llvm-svn: 335849

6 years agoFix warning on MSVC by using size_t arithmetic instead of casting after the fact...
Filipe Cabecinhas [Thu, 28 Jun 2018 12:38:43 +0000 (12:38 +0000)]
Fix warning on MSVC by using size_t arithmetic instead of casting after the fact. NFC

llvm-svn: 335848

6 years ago[ELF] - EhFrame.cpp: add test case to check "unknown FDE encoding".
George Rimar [Thu, 28 Jun 2018 12:20:04 +0000 (12:20 +0000)]
[ELF] - EhFrame.cpp: add test case to check "unknown FDE encoding".

It's https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L147 line,
which was untested before this patch.

llvm-svn: 335847

6 years agoRemove explicit type from an initializer list. NFC.
Alexander Kornienko [Thu, 28 Jun 2018 12:18:42 +0000 (12:18 +0000)]
Remove explicit type from an initializer list. NFC.

llvm-svn: 335846

6 years agoFix formatting. NFC.
Alexander Kornienko [Thu, 28 Jun 2018 12:15:17 +0000 (12:15 +0000)]
Fix formatting. NFC.

llvm-svn: 335845

6 years agoRevert "ADT: Move ArrayRef comparison operators into the class"
Pavel Labath [Thu, 28 Jun 2018 12:10:21 +0000 (12:10 +0000)]
Revert "ADT: Move ArrayRef comparison operators into the class"

This reverts commit r335839, because it breaks the MSVC build.

llvm-svn: 335844

6 years agoThe :option: syntax was generating Sphinx build warnings; switched to double backtick...
Aaron Ballman [Thu, 28 Jun 2018 12:05:40 +0000 (12:05 +0000)]
The :option: syntax was generating Sphinx build warnings; switched to double backticks to silence the warning; NFC.

llvm-svn: 335843

6 years agoCorrect the code highlighting marker to be Objective-C rather than C++ which fixes...
Aaron Ballman [Thu, 28 Jun 2018 12:02:38 +0000 (12:02 +0000)]
Correct the code highlighting marker to be Objective-C rather than C++ which fixes a Sphinx build warning; NFC.

llvm-svn: 335842

6 years agoFix the indentation in this documentation to remove a Sphinx warning; NFC.
Aaron Ballman [Thu, 28 Jun 2018 12:00:16 +0000 (12:00 +0000)]
Fix the indentation in this documentation to remove a Sphinx warning; NFC.

llvm-svn: 335841

6 years ago[ELF] - EhFrame: add test case to cover uncovered branch of the code.
George Rimar [Thu, 28 Jun 2018 11:58:31 +0000 (11:58 +0000)]
[ELF] - EhFrame: add test case to cover uncovered branch of the code.

This test case adds test for the line that was uncovered previously:
https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L175

it errors out, but we now can test that we have expected flow,
which is different for CIE of version 1 and CIE of version 3.

llvm-svn: 335840

6 years agoADT: Move ArrayRef comparison operators into the class
Pavel Labath [Thu, 28 Jun 2018 11:45:28 +0000 (11:45 +0000)]
ADT: Move ArrayRef comparison operators into the class

Summary:
This allows the implicit ArrayRef conversions to kick in when e.g.
comparing ArrayRef to a SmallVector.

Reviewers: zturner, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48632

llvm-svn: 335839

6 years ago[ELF] - Cover "unknown .eh_frame augmentation string" error.
George Rimar [Thu, 28 Jun 2018 11:35:10 +0000 (11:35 +0000)]
[ELF] - Cover "unknown .eh_frame augmentation string" error.

It was https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L195
and we did not cover it with test.

Patch fixes it.

llvm-svn: 335838

6 years ago[llvm-mca] Refactor method RegisterFile::collectWrites(). NFCI
Andrea Di Biagio [Thu, 28 Jun 2018 11:20:14 +0000 (11:20 +0000)]
[llvm-mca] Refactor method RegisterFile::collectWrites(). NFCI

Rather than calling std::find in a loop, just sort the vector and remove
duplicate entries at the end of the function.

Also, move the debug print at the end of the function, and query the
MCRegisterInfo to print register names rather than physreg IDs.

No functional change intended.

llvm-svn: 335837

6 years ago[clangd] Fix a data race in TUScheduler
Ilya Biryukov [Thu, 28 Jun 2018 11:04:45 +0000 (11:04 +0000)]
[clangd] Fix a data race in TUScheduler

By recomputing CompilerInvocation instead of copying it.
The problem was caused by the fact that copies of CompilerInvocation
store references to the shared state (DiagnosticOptions) when copied,
causing data races when two different copies are destroyed from
different threads.

llvm-svn: 335836

6 years ago[Analyzer] Iterator Checker - Part 2: Increment, decrement operators and ahead-of...
Adam Balogh [Thu, 28 Jun 2018 10:58:53 +0000 (10:58 +0000)]
[Analyzer] Iterator Checker - Part 2: Increment, decrement operators and ahead-of-begin checks

Add handling of the begin() funcion of containers to the iterator checkers,
together with the pre- and postfix ++ and -- operators of the iterators. This
makes possible the checking of iterators dereferenced ahead of the begin of the
container.

Differential Revision: https://reviews.llvm.org/D32642

llvm-svn: 335835

6 years ago[DebugInfo] Follow-up commit to improve consistency. NFC
Jonas Devlieghere [Thu, 28 Jun 2018 10:56:40 +0000 (10:56 +0000)]
[DebugInfo] Follow-up commit to improve consistency. NFC

Follow-up commit for r335757 to address some inconsistencies.

llvm-svn: 335834

6 years ago[ELF] - Add test case to cover "corrupted CIE (failed to read LEB128)" error.
George Rimar [Thu, 28 Jun 2018 10:55:52 +0000 (10:55 +0000)]
[ELF] - Add test case to cover "corrupted CIE (failed to read LEB128)" error.

It is the following line:
https://github.com/llvm-mirror/lld/blob/master/ELF/EhFrame.cpp#L120

We did not cover it yet.

llvm-svn: 335833

6 years agoComment change to verify commit rights. NFC.
Jesper Antonsson [Thu, 28 Jun 2018 10:55:04 +0000 (10:55 +0000)]
Comment change to verify commit rights. NFC.

Summary: Just a silly one-character correction.

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D48709

llvm-svn: 335832

6 years agos/TablesChecked/TableChecked/ after r335823
Hans Wennborg [Thu, 28 Jun 2018 10:24:38 +0000 (10:24 +0000)]
s/TablesChecked/TableChecked/ after r335823

llvm-svn: 335831

6 years agoAMDGPU: Remove MFI::ABIArgOffset
Matt Arsenault [Thu, 28 Jun 2018 10:18:55 +0000 (10:18 +0000)]
AMDGPU: Remove MFI::ABIArgOffset

We have too many mechanisms for tracking the various offsets
used for kernel arguments, so remove one. There's still a lot of
confusion with these because there are two different "implicit"
argument areas located at the beginning and end of the kernarg
segment.

Additionally, the offset was determined based on the memory
size of the split element types. This would break in a future
commit where v3i32 is decomposed into separate i32 pieces.

llvm-svn: 335830

6 years agoAMDGPU: Error on calls from graphics shaders
Matt Arsenault [Thu, 28 Jun 2018 10:18:36 +0000 (10:18 +0000)]
AMDGPU: Error on calls from graphics shaders

In principle nothing should stop these from working, but
work is necessary to create an ABI for dealing with the stack
related registers.

llvm-svn: 335829

6 years agoAMDGPU: Fix AMDGPUCodeGenPrepare using uninitialized AMDGPUAS struct
Matt Arsenault [Thu, 28 Jun 2018 10:18:23 +0000 (10:18 +0000)]
AMDGPU: Fix AMDGPUCodeGenPrepare using uninitialized AMDGPUAS struct

Not sure how this wasn't noticed before.

llvm-svn: 335828

6 years agoAMDGPU: Fix assert on aggregate type kernel arguments
Matt Arsenault [Thu, 28 Jun 2018 10:18:11 +0000 (10:18 +0000)]
AMDGPU: Fix assert on aggregate type kernel arguments

Just fix the crash for now by not doing the optimization since
figuring out how to properly convert the bits for an arbitrary
struct is a pain.

Also fix a crash when there is only an empty struct argument.

llvm-svn: 335827

6 years ago[ELF] - Removed trailing whitespace. NFC.
George Rimar [Thu, 28 Jun 2018 10:12:59 +0000 (10:12 +0000)]
[ELF] - Removed trailing whitespace. NFC.

llvm-svn: 335826

6 years ago[ELF] - Add test case to cover "corrupted CIE (failed to read string)"
George Rimar [Thu, 28 Jun 2018 10:10:02 +0000 (10:10 +0000)]
[ELF] - Add test case to cover "corrupted CIE (failed to read string)"

It was uncovered by our test cases.

llvm-svn: 335824

6 years agoUnify sorted asserts to use the existing atomic pattern
Benjamin Kramer [Thu, 28 Jun 2018 10:03:45 +0000 (10:03 +0000)]
Unify sorted asserts to use the existing atomic pattern

These are all benign races and only visible in !NDEBUG. tsan complains
about it, but a simple atomic bool is sufficient to make it happy.

llvm-svn: 335823

6 years agoRetrieve a function PDB symbol correctly from nested blocks
Pavel Labath [Thu, 28 Jun 2018 10:03:42 +0000 (10:03 +0000)]
Retrieve a function PDB symbol correctly from nested blocks

Summary:
This patch fixes a problem with retrieving a function symbol by an
address in a nested block. In the current implementation of
ResolveSymbolContext function it retrieves a symbol with
PDB_SymType::None and then checks if found symbol's tag equals to
PDB_SymType::Function. So, if nested block's symbol was found,
ResolveSymbolContext does not resolve a function.

Reviewers: asmith, labath, zturner

Reviewed By: asmith, labath

Differential Revision: https://reviews.llvm.org/D47939
Patch by Aleksandr Urakov <aleksandr.urakov@jetbrains.com>

llvm-svn: 335822

6 years ago[DAGCombiner] Ensure we use the correct CC result type in visitSDIV
Simon Pilgrim [Thu, 28 Jun 2018 09:54:28 +0000 (09:54 +0000)]
[DAGCombiner] Ensure we use the correct CC result type in visitSDIV

We could get away with it for constant folded cases, but not for rL335719.

Thanks to Krzysztof Parzyszek for noticing.

llvm-svn: 335821

6 years ago[SCCP] Mark CFG as preserved.
Florian Hahn [Thu, 28 Jun 2018 09:53:38 +0000 (09:53 +0000)]
[SCCP] Mark CFG as preserved.

SCCP does not change the CFG, so we can mark it as preserved.

Reviewers: dberlin, efriedma, davide

Reviewed By: davide

Differential Revision: https://reviews.llvm.org/D47149

llvm-svn: 335820

6 years ago[ELF] - Add test case to cover "unexpected end of CIE" error.
George Rimar [Thu, 28 Jun 2018 09:34:59 +0000 (09:34 +0000)]
[ELF] - Add test case to cover "unexpected end of CIE" error.

It was uncovered by our test cases.

llvm-svn: 335819

6 years ago[ELF] - Get rid of precompiled elf object in test case.
George Rimar [Thu, 28 Jun 2018 09:29:49 +0000 (09:29 +0000)]
[ELF] - Get rid of precompiled elf object in test case.

We has precompiled object with unsupported FDE version (=2).
It is possible to use llvm-mc instead for this test.

Patch do this change.

llvm-svn: 335818

6 years ago[DAGCombiner] Remove unused variable. NFCI.
Simon Pilgrim [Thu, 28 Jun 2018 09:29:08 +0000 (09:29 +0000)]
[DAGCombiner] Remove unused variable. NFCI.

Noticed in D45806 review.

llvm-svn: 335817

6 years ago[IndVarSimplify] Ignore unreachable users of truncs
Max Kazantsev [Thu, 28 Jun 2018 08:20:03 +0000 (08:20 +0000)]
[IndVarSimplify] Ignore unreachable users of truncs

If a trunc has a user in a block which is not reachable from entry,
we can safely perform trunc elimination as if this user didn't exist.

llvm-svn: 335816

6 years ago[llvm-exegesis] Add partial X87 support.
Clement Courbet [Thu, 28 Jun 2018 07:41:16 +0000 (07:41 +0000)]
[llvm-exegesis] Add partial X87 support.

Summary:
This enables the X86-specific X86FloatingPointStackifierPass, and allow
llvm-exegesis to generate and measure X87 latency/uops for some FP ops.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48592

llvm-svn: 335815

6 years ago[Analyzer] Constraint Manager Negates Difference
Adam Balogh [Thu, 28 Jun 2018 07:35:23 +0000 (07:35 +0000)]
[Analyzer] Constraint Manager Negates Difference

If range [m .. n] is stored for symbolic expression A - B, then we can deduce the range for B - A which is [-n .. -m]. This is only true for signed types, unless the range is [0 .. 0].

Differential Revision: https://reviews.llvm.org/D35110

llvm-svn: 335814

6 years agotest: use regex matchers to make test-case robust against register renumberings
Tobias Grosser [Thu, 28 Jun 2018 07:11:48 +0000 (07:11 +0000)]
test: use regex matchers to make test-case robust against register renumberings

Suggested-by: Michael Kruse
llvm-svn: 335813

6 years ago[CMake] Use explicit targets for building Linux runtimes
Petr Hosek [Thu, 28 Jun 2018 05:15:46 +0000 (05:15 +0000)]
[CMake] Use explicit targets for building Linux runtimes

Previously we were using default logic when building Linux runtimes
in Fuchsia toolchain, but that leads to various issues due to how
the CMake logic in compiler-rt for determining the platform support
is implemented. With this change, we will use explicit target for
every provided Linux sysroot.

Differential Revision: https://reviews.llvm.org/D48563

llvm-svn: 335812

6 years ago[DwarfDebug] Remove unused argument (NFC)
Petar Jovanovic [Thu, 28 Jun 2018 04:50:40 +0000 (04:50 +0000)]
[DwarfDebug] Remove unused argument (NFC)

Remove unused ByteStreamer argument from function emitDebugLocValue.

Patch by Nikola Prica.

Differential Revision: https://reviews.llvm.org/D48590

llvm-svn: 335811

6 years agoHandle both Linux and Windows path separator for the resource dir
Petr Hosek [Thu, 28 Jun 2018 03:54:08 +0000 (03:54 +0000)]
Handle both Linux and Windows path separator for the resource dir

The resource dir path used for the multiarch runtimes support is
constructed in a platform independent way and therefore will use
native path separators on each platform. We need to make sure that
the per target runtime directory test handles both to not fail
when the test is being executed on Windows.

llvm-svn: 335810

6 years agoSupport for multiarch runtimes layout
Petr Hosek [Thu, 28 Jun 2018 03:11:52 +0000 (03:11 +0000)]
Support for multiarch runtimes layout

This change adds a support for multiarch style runtimes layout, so in
addition to the existing layout where runtimes get installed to:

lib/clang/$version/lib/$os

Clang now allows runtimes to be installed to:

lib/clang/$version/$target/lib

This also includes libc++, libc++abi and libunwind; today those are
assumed to be in Clang library directory built for host, with the
new layout it is possible to install libc++, libc++abi and libunwind
into the runtime directory built for different targets.

The use of new layout is enabled by setting the
LLVM_ENABLE_RUNTIME_TARGET_DIR CMake variable and is supported by both
projects and runtimes layouts. The runtimes CMake build has been further
modified to use the new layout when building runtimes for multiple
targets.

Differential Revision: https://reviews.llvm.org/D45604

llvm-svn: 335809

6 years ago[analyzer] Remove redundant ';'.
Artem Dergachev [Thu, 28 Jun 2018 02:33:16 +0000 (02:33 +0000)]
[analyzer] Remove redundant ';'.

Fixes a compiler warning. No functionan change intended.

llvm-svn: 335808

6 years ago[modules] Do not serialize / deserialize pending new/delete mismatch
Richard Smith [Thu, 28 Jun 2018 01:57:04 +0000 (01:57 +0000)]
[modules] Do not serialize / deserialize pending new/delete mismatch
checks across module boundaries. This was causing us to load constructor
definitions for all consumers of a module with a pending check.

(In one case we saw ~7% of total frontend time spent loading
constructors for this check.)

llvm-svn: 335807

6 years ago[X86] Use PatFrag with hardcoded numbers for FROUND_NO_EXC/FROUND_CURRENT instead...
Craig Topper [Thu, 28 Jun 2018 01:45:44 +0000 (01:45 +0000)]
[X86] Use PatFrag with hardcoded numbers for FROUND_NO_EXC/FROUND_CURRENT instead of ImmLeafs with predicates where one of the two numbers was hardcoded.

This more efficient for the isel table generator since we can use CheckChildInteger instead of MoveChild, CheckPredicate, MoveParent. This reduced the table size by 1-2K.

I wish there was a way to share the values with X86BaseInfo.h and still use a PatFrag like this. These numbers are fixed by the X86 intrinsic spec going back many years and we should never need to change them. So we shouldn't waste table bytes to support sharing.

llvm-svn: 335806

6 years ago[modules] Ensure that an in-class function definition is attached to the
Richard Smith [Thu, 28 Jun 2018 01:07:28 +0000 (01:07 +0000)]
[modules] Ensure that an in-class function definition is attached to the
declaration of the function that ends up in the primary definition of
the class.

... at least for class templates. This is necessary for us to be able to
track when an inline friend function has a definition that needs to be
(lazily) instantiated.

llvm-svn: 335805

6 years ago[X86] Change how we prefer shift by immediate over folding a load into a shift.
Craig Topper [Thu, 28 Jun 2018 00:47:41 +0000 (00:47 +0000)]
[X86] Change how we prefer shift by immediate over folding a load into a shift.

BMI2 added new shift by register instructions that have the ability to fold a load.

Normally without doing anything special isel would prefer folding a load over folding an immediate because the load folding pattern has higher "complexity". This would require an instruction to move the immediate into a register. We would rather fold the immediate instead and have a separate instruction for the load.

We used to enforce this priority by artificially lowering the complexity of the load pattern.

This patch changes this to instead reject the load fold in isProfitableToFoldLoad if there is an immediate. This is more consistent with other binops and feels less hacky.

llvm-svn: 335804