platform/upstream/llvm.git
4 years agoGlobalISel: Lower s1 source G_SITOFP/G_UITOFP
Matt Arsenault [Fri, 15 Nov 2019 06:29:12 +0000 (11:59 +0530)]
GlobalISel: Lower s1 source G_SITOFP/G_UITOFP

4 years agoUnbreak the clang test suite when hexagon-link is not available
David Zarzycki [Fri, 15 Nov 2019 06:45:20 +0000 (08:45 +0200)]
Unbreak the clang test suite when hexagon-link is not available

All of the other tests are of the form {{hexagon-link|ld}} so this
probably should be too.

4 years agogn build: Merge 16f38dda292
LLVM GN Syncbot [Fri, 15 Nov 2019 05:27:58 +0000 (05:27 +0000)]
gn build: Merge 16f38dda292

4 years ago[ORC] Add a utility to support dumping JIT'd objects to disk for debugging.
Lang Hames [Thu, 14 Nov 2019 23:58:21 +0000 (15:58 -0800)]
[ORC] Add a utility to support dumping JIT'd objects to disk for debugging.

Adds a DumpObjects utility that can be used to dump JIT'd objects to disk.
Instances of DebugObjects may be used by ObjectTransformLayer as no-op
transforms.

This patch also adds an ObjectTransformLayer to LLJIT and an example of how
to use this utility to dump JIT'd objects in LLJIT.

4 years ago[llvm-objcopy][MachO] Implement --remove-section
Seiya Nuta [Fri, 15 Nov 2019 03:37:55 +0000 (12:37 +0900)]
[llvm-objcopy][MachO] Implement --remove-section

Reviewers: alexshap, rupprecht, jhenderson

Reviewed By: rupprecht, jhenderson

Subscribers: jakehehrlich, abrachet, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66282

4 years agoAdd a test to cover structural match for recursive data types
Bruno Cardoso Lopes [Thu, 14 Nov 2019 21:44:18 +0000 (13:44 -0800)]
Add a test to cover structural match for recursive data types

This didn't use to work prior to r370639, now that this is supported
add a testcase to prevent regressions.

rdar://problem/53602368

4 years ago[InstCombine] Don't use getFirstNonPHI in FoldIntegerTypedPHI
Francis Visoiu Mistrih [Fri, 15 Nov 2019 01:45:27 +0000 (17:45 -0800)]
[InstCombine] Don't use getFirstNonPHI in FoldIntegerTypedPHI

getFirstNonPHI iterates over all the instructions in a block until it
finds a non-PHI.

Then, the loop starts from the beginning of the block and goes through
all the instructions until it reaches the instruction found by
getFirstNonPHI.

Instead of doing that, just stop when a non-PHI is found.

This reduces the compile-time of a test case discussed in
https://reviews.llvm.org/D47023 by 13x.

Not entirely sure how to come up with a test case for this since it's a
compile time issue that would significantly slow down running the tests.

Differential Revision: https://reviews.llvm.org/D70016

4 years ago[WinEH] Fix the wrong alignment orientation during calculating EH frame.
Wang, Pengfei [Thu, 14 Nov 2019 07:12:07 +0000 (15:12 +0800)]
[WinEH] Fix the wrong alignment orientation during calculating EH frame.

Summary: This is a bug fix for further issues in PR43585.

Reviewers: rnk, RKSimon, craig.topper, andrew.w.kaylor

Subscribers: hiraditya, llvm-commits, annita.zhang

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70224

4 years ago[Utility] Remove a dead header [PPC64LE_ehframe_Registers.h]
Davide Italiano [Thu, 14 Nov 2019 23:29:28 +0000 (15:29 -0800)]
[Utility] Remove a dead header [PPC64LE_ehframe_Registers.h]

4 years agoAdd missing includes needed to prune LLVMContext.h include, NFC
Reid Kleckner [Thu, 14 Nov 2019 23:15:48 +0000 (15:15 -0800)]
Add missing includes needed to prune LLVMContext.h include, NFC

These are a pre-requisite to removing #include "llvm/Support/Options.h"
from LLVMContext.h: https://reviews.llvm.org/D70280

4 years ago[libc++] [P0920] [P1661] Update status page.
Marek Kurdej [Thu, 14 Nov 2019 23:12:34 +0000 (00:12 +0100)]
[libc++] [P0920] [P1661] Update status page.

4 years ago[LLDB] Fix more -Wdocumentation issues (NFC)
Jonas Devlieghere [Thu, 14 Nov 2019 22:30:11 +0000 (14:30 -0800)]
[LLDB] Fix more -Wdocumentation issues (NFC)

4 years ago[COFF] Avoid CodeView include in header
Reid Kleckner [Thu, 14 Nov 2019 22:27:48 +0000 (14:27 -0800)]
[COFF] Avoid CodeView include in header

Most LLD/COFF files don't care about CodeView. Avoid using CodeView
types in InputFiles.h.

4 years agoForward declare the DWARFCache to avoid including LLVM DWARF details
Reid Kleckner [Thu, 14 Nov 2019 22:16:21 +0000 (14:16 -0800)]
Forward declare the DWARFCache to avoid including LLVM DWARF details

LLD's DWARF.h header leaks a lot of LLVM DWARF includes that LLD doesn't
need. For Chunks.cpp, I see a compile time decrease of 3.1s to 2.7s.

4 years ago[Reproducer] Enable crash reports for reproducer tests
Jonas Devlieghere [Thu, 14 Nov 2019 19:11:37 +0000 (11:11 -0800)]
[Reproducer] Enable crash reports for reproducer tests

For some reason the reproducer tests seem really proficient at
uncovering structural issues in LLDB related to how we tear down things,
but of course only on the bots.

The pretty stack trace helps a bit, but what I really want is the crash
reports which contain much more information, such as what other threads
we doing.

Crash reports are automatically suppressed by lit. This patch
(temporarily) disables that for the reproducer tests.

4 years ago[BPF] Restrict preserve_access_index attribute to C only
Yonghong Song [Thu, 14 Nov 2019 18:34:35 +0000 (10:34 -0800)]
[BPF] Restrict preserve_access_index attribute to C only

This patch is a follow-up for commit 4e2ce228ae79
  [BPF] Add preserve_access_index attribute for record definition
to restrict attribute for C only. A new test case is added
to check for this restriction.

Additional code polishing is done based on
Aaron Ballman's suggestion in https://reviews.llvm.org/D69759/new/.

Differential Revision: https://reviews.llvm.org/D70257

4 years ago[SanitizerCommon] Print the current value of options when printing out help.
Dan Liew [Tue, 29 Oct 2019 00:53:38 +0000 (17:53 -0700)]
[SanitizerCommon] Print the current value of options when printing out help.

Summary:
Previously it wasn't obvious what the default value of various sanitizer
options were. A very close approximation of the "default values" for the
options are the current value of the options at the time of printing the
help output.

In the case that no other options are provided then the current values
are the default values (apart from `help`).

```
ASAN_OPTIONS=help=1 ./program
```

This patch causes the current option values to be printed when the
`help` output is enabled. The original intention for this patch was to append
`(Default: <value>)` to an option's help text. However because this
is technically wrong (and misleading) I've opted to append
`(Current Value: <value>)` instead.

When trying to implement a way of displaying the default value of the
options I tried another solution where the default value used in `*.inc` files
were used to create compile time strings that where used when printing
the help output. This solution was not satisfactory for several reasons:

* Stringifying the default values with the preprocessor did not work very
well in several cases.  Some options contain boolean operators which no
amount of macro expansion can get rid of.
* It was much more invasive than this patch. Every sanitizer had to be changed.
* The settings of `__<sanitizer>_default_options()` are ignored.

For those reasons I opted for the solution in this patch.

rdar://problem/42567204

Reviewers: kubamracek, yln, kcc, dvyukov, vitalybuka, cryptoad, eugenis, samsonov

Subscribers: #sanitizers, llvm-commits

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D69546

4 years ago[COFF] Don't include llvm/LTO/LTO.h in a header
Reid Kleckner [Thu, 14 Nov 2019 21:46:00 +0000 (13:46 -0800)]
[COFF] Don't include llvm/LTO/LTO.h in a header

LLVM's LTO header includes all of llvm/IR, which most of the COFF linker
doesn't need.

4 years agoRevert "Temporarily Revert:"
Alexey Bataev [Thu, 14 Nov 2019 19:35:28 +0000 (14:35 -0500)]
Revert "Temporarily Revert:"

This reverts commit e511c4b0dff1692c267addf17dce3cebe8f97faa:

    Temporarily Revert:

     "[SLP] Generalization of stores vectorization."
     "[SLP] Fix -Wunused-variable. NFC"
     "[SLP] Vectorize jumbled stores."

after fixing the problem with compile time.

4 years ago[llvm-dis] Fix the disable-output flag
Matthew Voss [Thu, 14 Nov 2019 20:33:52 +0000 (12:33 -0800)]
[llvm-dis] Fix the disable-output flag

My change in llvmorg-10-init-9872-g141bb5f308f broke this flag.

Thanks to @rsmith for the bug.

4 years ago[GPGPU] Fix depricated warning.
Michael Kruse [Thu, 14 Nov 2019 21:17:16 +0000 (15:17 -0600)]
[GPGPU] Fix depricated warning.

setAlignment(unsigned) was deprecated in commit:

0e62011df891d0e7ad904524edf705d07d12d5d4
[Alignment][NFC] Remove dependency on GlobalObject::setAlignment(unsigned)

4 years ago[X86] Fix the implementation of __readcr3/__writecr3 to work in 64-bit mode
Craig Topper [Thu, 14 Nov 2019 21:21:35 +0000 (13:21 -0800)]
[X86] Fix the implementation of __readcr3/__writecr3 to work in 64-bit mode

We need to use a 64-bit type in 64-bit mode so a 64-bit register
will get used in the generated assembly. I've also changed the
constraints to just use "r" intead of "q". "q" forces to a only
an a/b/c/d register in 32-bit mode, but I see no reason that
would matter here.

Fixes Nico's note in PR19301 over 4 years ago.

Differential Revision: https://reviews.llvm.org/D70101

4 years ago[DebugInfo] Allow spill slots in call site parameter descriptions
Vedant Kumar [Thu, 14 Nov 2019 17:20:58 +0000 (09:20 -0800)]
[DebugInfo] Allow spill slots in call site parameter descriptions

Allow call site paramter descriptions to reference spill slots. Spill
slots are not visible to high-level LLVM IR, so they can safely be
referenced during entry value evaluation (as they cannot be clobbered by
some other function).

This gives a 5% increase in the number of call site parameter DIEs in an
LTO x86_64 build of the xnu kernel.

This reverts commit eb4c98ca3d2590bad9f6542afbf3a7824d2b53fa (
[DebugInfo] Exclude memory location values as parameter entry values),
effectively reintroducing the portion of D60716 which dealt with memory
locations (authored by Djordje, Nikola, Ananth, and Ivan).

This partially addresses llvm.org/PR43343. However, not all memory
operands forwarded to callees live in spill slots. In the xnu build, it
may be possible to use an escape analysis to increase the number of call
site parameter by another 15% (more details in PR43343).

Differential Revision: https://reviews.llvm.org/D70254

4 years ago[yaml2obj][COFF] Add support for extended relocation tables
Sergey Dmitriev [Thu, 14 Nov 2019 20:31:13 +0000 (12:31 -0800)]
[yaml2obj][COFF] Add support for extended relocation tables

Summary:
The tool does not correctly handle COFF sections with extended relocation tables (with IMAGE_SCN_LNK_NRELOC_OVFL bit set), this patch fixes this problem.

But I have cheated a bit in the test (to make it smaller) because extended relocation table is supposed to be used when the number of relocations exceeds 65534. Otherwise the test size would be pretty big.

Reviewers: jhenderson, MaskRay, mstorsjo

Reviewed By: mstorsjo

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70251

4 years ago[GPGPU] Fix #includes.
Michael Kruse [Thu, 14 Nov 2019 20:34:39 +0000 (14:34 -0600)]
[GPGPU] Fix #includes.

Adapt for 05da2fe52162 "Sink all InitializePasses.h includes" which
forgot the GPGPU files (presumably because POLLY_ENABLE_GPGPU_CODEGEN
is OFF by default).

4 years ago[globalisel][irtanslator] The IRTranslator should preserve TBAA information
Daniel Sanders [Thu, 14 Nov 2019 20:11:00 +0000 (12:11 -0800)]
[globalisel][irtanslator] The IRTranslator should preserve TBAA information

4 years ago[lldb][Editline] Support ctrl+left/right arrow word navigation.
Jordan Rupprecht [Tue, 12 Nov 2019 19:37:23 +0000 (11:37 -0800)]
[lldb][Editline] Support ctrl+left/right arrow word navigation.

Summary:
This adds several 5C/5D escape codes that allow moving forward/backward words similar to bash command line navigation.

On my terminal, `ctrl+v ctrl+<left arrow>` prints `^[[1;5D`. However, it seems inputrc also maps other escape variants of this to forward/backward word, so I've included those too. Similar for 5C = ctrl+right arrow.

Reviewers: JDevlieghere, labath

Reviewed By: JDevlieghere, labath

Subscribers: merge_guards_bot, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70137

4 years agoFix up lit's tests to run in a multi-config build environment.
Paul Robinson [Thu, 14 Nov 2019 16:56:32 +0000 (08:56 -0800)]
Fix up lit's tests to run in a multi-config build environment.

Differential Revision: https://reviews.llvm.org/D70239

4 years ago[Pipeliner] Fix an assertion caused by iterator invalidation.
Sumanth Gundapaneni [Thu, 14 Nov 2019 19:08:06 +0000 (13:08 -0600)]
[Pipeliner] Fix an assertion caused by iterator invalidation.

4 years ago[Hexagon] Validate the iterators before converting them to mux.
Sumanth Gundapaneni [Thu, 14 Nov 2019 19:01:16 +0000 (13:01 -0600)]
[Hexagon] Validate the iterators before converting them to mux.

The conditional instructions that are translated to mux instructions
are deleted and the iterators to these deleted instructions are being
used later. This patch fixed this issue.

4 years ago[Hexagon] Fix clang driver to parse -mcpu/-mvXX and -march properly.
Sumanth Gundapaneni [Thu, 14 Nov 2019 18:59:15 +0000 (12:59 -0600)]
[Hexagon] Fix clang driver to parse -mcpu/-mvXX and -march properly.

Before this patch if we pass "-mcpu=hexagonv65 -march=hexagon" in this order,
the driver fails to figure out the correct cpu version. This patch fixed this
issue.

4 years agoUpdate lit infra to detect "MemoryWithOrigins' sanitizer build.
Sumanth Gundapaneni [Thu, 14 Nov 2019 18:40:10 +0000 (12:40 -0600)]
Update lit infra to detect "MemoryWithOrigins' sanitizer build.

Differential Revision: https://reviews.llvm.org/D68399

4 years ago[RISCV] Use addi rather than add x0
Sam Elliott [Thu, 14 Nov 2019 18:42:33 +0000 (18:42 +0000)]
[RISCV] Use addi rather than add x0

Summary:
The RISC-V backend used to generate `add <reg>, x0, <reg>` in a few
instances. It seems most places no longer generate this sequence.

This is semantically equivalent to `addi <reg>, <reg>, 0`, but the
latter has the advantage of being noted to be the canonical instruction
to be used for moves (which microarchitectures can and should recognise
as such).

The changed testcases use instruction aliases - `mv <reg>, <reg>` is an
alias for `addi <reg>, <reg>, 0`.

Reviewers: luismarques

Reviewed By: luismarques

Subscribers: hiraditya, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, kito-cheng, shiva0217, jrtc27, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, s.egerton, pzheng, sameer.abuasal, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70124

4 years agoAdd support for multi-module bitcode files to llvm-dis
Matthew Voss [Wed, 13 Nov 2019 00:29:37 +0000 (16:29 -0800)]
Add support for multi-module bitcode files to llvm-dis

Summary:
This change allows llvm-dis to disassemble multi-module bitcode
files, including the associated module summary.

Reviewers: tejohnson, pcc, mehdi_amini

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70153

4 years ago[llvm-objcopy][COFF] Add support for extended relocation tables
Sergey Dmitriev [Thu, 14 Nov 2019 17:50:36 +0000 (09:50 -0800)]
[llvm-objcopy][COFF] Add support for extended relocation tables

Summary: This patch adds support for COFF objects with extended relocation tables to the llvm-objcopy tool.

Reviewers: jhenderson, MaskRay, mstorsjo, alexshap, rupprecht

Reviewed By: mstorsjo

Subscribers: jakehehrlich, abrachet, seiya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70205

4 years ago[RISCV] Fix wrong CFI directives
Luís Marques [Thu, 14 Nov 2019 18:27:42 +0000 (18:27 +0000)]
[RISCV] Fix wrong CFI directives

Summary: Removes CFI CFA directives that could incorrectly propagate
beyond the basic block they were inteded for. Specifically it removes
the epilogue CFI directives. See the branch_and_tail_call test for an
example of the issue. Should fix the stack unwinding issues caused by
the incorrect directives.

Reviewers: asb, lenary, shiva0217
Reviewed By: lenary
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D69723

4 years ago[ExpandReductions] Don't push all intrinsics to the worklist. Just push reductions.
Craig Topper [Thu, 14 Nov 2019 18:02:51 +0000 (10:02 -0800)]
[ExpandReductions] Don't push all intrinsics to the worklist. Just push reductions.

We were previously pushing all intrinsics used in a function to the
worklist. This is wasteful for memory in a function with a lot of
intrinsics.

We also ask TTI if we should expand every intrinsic, but we only
have expansion support for the reduction intrinsics. This just
wastes time for the non-reduction intrinsics.

This patch only pushes reduction intrinsics into the worklist and
skips other intrinsics.

Differential Revision: https://reviews.llvm.org/D69470

4 years ago[clang-format] Fixed edge-case with SpacesInSquareBrackets with trailing bare "&...
Mitchell Balan [Thu, 14 Nov 2019 18:18:34 +0000 (13:18 -0500)]
[clang-format] Fixed edge-case with SpacesInSquareBrackets with trailing bare "&" lambda capture.

Summary:
Lambda captures allow for a lone `&` capture, so `&]` needs to be properly handled.

`int foo = [& ]() {}` is fixed to give `int foo = [ & ]() {}`

Reviewers: MyDeveloperDay

Reviewed by: MyDeveloperDay

Subscribers: cfe-commits

Tags: #clang, #clang-format

Differential Revision: https://reviews.llvm.org/D70249

4 years agoReplace wrongly deleted header banner, fix formatting
Reid Kleckner [Thu, 14 Nov 2019 18:19:36 +0000 (10:19 -0800)]
Replace wrongly deleted header banner, fix formatting

I reviewed the diff hunks of 05da2fe52162c80dfa that don't contain
'#include' lines, and found two unintended changes. I deleted a header
banner inadvertently while inserting a header, and changed the
indentation of a constructor in an odd way. Add back the banner, and
reformat the constructor.

4 years ago[cmake] Emit an error for -DBUILD_SHARED_LIBS=ON on Windows
Tom Stellard [Thu, 14 Nov 2019 17:18:44 +0000 (09:18 -0800)]
[cmake] Emit an error for -DBUILD_SHARED_LIBS=ON on Windows

Summary:
The BUILD_SHARED_LIBS=ON build fails on Windows, so prevent users from
enabling it.

Reviewers: beanz, smeenai, compnerd, phosek

Reviewed By: beanz

Subscribers: mgorny, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70161

4 years agoDocument more specifically the rounding for "llvm.round".
Kevin P. Neal [Thu, 14 Nov 2019 18:11:54 +0000 (13:11 -0500)]
Document more specifically the rounding for "llvm.round".

Differential Revision: https://reviews.llvm.org/D68810

4 years ago[InstCombine] remove duplicate code for simplifying a shuffle; NFCI
Sanjay Patel [Thu, 14 Nov 2019 17:06:50 +0000 (12:06 -0500)]
[InstCombine] remove duplicate code for simplifying a shuffle; NFCI

The transform is already handled by InstSimplify or earlier
in InstCombine, so trying to do it again is not necessary.

4 years agoMake the language more consistent since I'm about to commit a content
Kevin P. Neal [Thu, 10 Oct 2019 16:24:51 +0000 (12:24 -0400)]
Make the language more consistent since I'm about to commit a content
change next.

4 years ago[clang-include-fixer] Skip .rc files when finding symbols
Reid Kleckner [Wed, 13 Nov 2019 19:25:42 +0000 (11:25 -0800)]
[clang-include-fixer] Skip .rc files when finding symbols

Summary:
For some reason CMake includes entries for .rc files, but
find-all-symbols handles them improperly.

See PR43993

Reviewers: sammccall, bkramer

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70196

4 years ago[OPENMP]Add assignment operator in UDR test, NFC.
Alexey Bataev [Thu, 14 Nov 2019 17:58:49 +0000 (12:58 -0500)]
[OPENMP]Add assignment operator in UDR test, NFC.

Add assignment operator in the test to check that even if the operator
was declare explicitly, the constructor is called in the user-defined
reduction initializer anyway.

4 years agoFix incorrect comment.
Adrian Prantl [Thu, 14 Nov 2019 17:55:24 +0000 (09:55 -0800)]
Fix incorrect comment.

4 years agoConvert condition to early exit (NFC)
Adrian Prantl [Thu, 14 Nov 2019 17:38:49 +0000 (09:38 -0800)]
Convert condition to early exit (NFC)

4 years agoConvert UpdateExternalModuleListIfNeeded to use early exits.
Adrian Prantl [Thu, 14 Nov 2019 17:35:06 +0000 (09:35 -0800)]
Convert UpdateExternalModuleListIfNeeded to use early exits.

4 years agoRename DWO -> Clang module to avoid confusion. (NFC)
Adrian Prantl [Thu, 14 Nov 2019 17:13:04 +0000 (09:13 -0800)]
Rename DWO -> Clang module to avoid confusion. (NFC)

4 years ago[LLDB] Make a clear distinction between usage & development docs
Jonas Devlieghere [Thu, 14 Nov 2019 17:02:35 +0000 (09:02 -0800)]
[LLDB] Make a clear distinction between usage & development docs

This renames the "Goals & Status" section to "Project" and the
"Resources" section to "Development". To better match this layout I've
moved the releases page under "Project".

4 years agoUse ForEachExternalModule in ParseTypeFromClangModule (NFC)
Adrian Prantl [Thu, 14 Nov 2019 16:57:32 +0000 (08:57 -0800)]
Use ForEachExternalModule in ParseTypeFromClangModule (NFC)

I wanted to further simplify ParseTypeFromClangModule by replacing the
hand-rolled loop with ForEachExternalModule, and then realized that
ForEachExternalModule also had the problem of visiting the same leaf
node an exponential number of times in the worst-case. This adds a set
of searched_symbol_files set to the function as well as the ability to
early-exit from it.

Differential Revision: https://reviews.llvm.org/D70215

4 years ago[AMDGPU][HIP] Change default DWARF version to 4
Scott Linder [Wed, 13 Nov 2019 17:31:50 +0000 (12:31 -0500)]
[AMDGPU][HIP] Change default DWARF version to 4

Summary:
Tooling around DWARF 5 is still not mature enough for this to be a sane
default, and the AMDGPU and HIP toolchains should agree on a single
default.

Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, aprantl, dstuttard, tpr, t-tye, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70191

4 years agoImprove VFS compatibility on Windows
Adrian McCarthy [Thu, 7 Nov 2019 18:50:33 +0000 (10:50 -0800)]
Improve VFS compatibility on Windows

Keys in a virtual file system can be in Posix or Windows form or even
a combination of the two.  Many VFS tests (and a few Clang tests) were
XFAILed on Windows because of false negatives when comparing paths.

First, we default CaseSenstive to false on Windows.  This allows
drive letters like "D:" to match "d:".  Windows filesystems are, by
default, case insensitive, so this makes sense even beyond the drive
letter.

Second, we allow slashes to match backslashes when they're used as the
root component of a path.

Both of these changes are limited to RedirectingFileSystems, so there's
little chance of affecting other path handling.

These changes allow eleven of the VFS tests to pass on Windows as well
as three other Clang tests, so they have re-enabled.

This solves the majority of PR43272.  Additional VFS test failures will
be fixed in separate patches.

Differential Revision: https://reviews.llvm.org/D69958

4 years ago[clangd] Ignore more implicit nodes in computing selection.
Sam McCall [Wed, 13 Nov 2019 19:16:23 +0000 (20:16 +0100)]
[clangd] Ignore more implicit nodes in computing selection.

Summary:
The DeclRefExpr for the callee of overloaded `operator()` and `operator[]` are
assigned the range of the paren/bracket lists in the AST.
These are better thought of as implicit (at least `()` - `[] is murkier).
But there's no bit on Expr for implicit, so just ignore them on our side.

While here, deal with the case where an implicit stmt (e.g. implicit-this)
is wrapped in an implicit cast. Previously we ignored the statement but not
the cast, and so the cast ended up being selected.

Fixes https://github.com/clangd/clangd/issues/195

Reviewers: kadircet, lh123

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70194

4 years ago[clangd] Expose value of enumerators to Hover API. (not UI yet)
Sam McCall [Wed, 13 Nov 2019 21:24:17 +0000 (22:24 +0100)]
[clangd] Expose value of enumerators to Hover API. (not UI yet)

Summary: This is part of https://github.com/clangd/clangd/issues/180.

Reviewers: kadircet

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70209

4 years ago[ADT] Move drop_begin from iterator_range.h into STLExtras.
Lang Hames [Wed, 13 Nov 2019 17:13:03 +0000 (09:13 -0800)]
[ADT] Move drop_begin from iterator_range.h into STLExtras.

Summary:
drop_begin depends on adl_begin/adl_end, which are defined in STLExtras.h,
but we can't just #include STLExtras.h in iterator_range.h as that would
introduce a circular reference (STLExtras.h already depends on
iterator_range.h). The simplest solution is to move drop_begin into
STLExtras.h, which is a reasonable home for it anyway.

Reviewers: dblaikie

Subscribers: dexonsmith, ributzka, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70189

4 years ago[Analyzer][NFC] Separate white-box tests for iterator modelling from iterator checker...
Adam Balogh [Fri, 8 Nov 2019 11:52:09 +0000 (12:52 +0100)]
[Analyzer][NFC] Separate white-box tests for iterator modelling from iterator checker tests

The recently committed debug.IteratorDebugging checker enables
standalone white-box testing of the modelling of containers and
iterators. For the three checkers based on iterator modelling only
simple tests are needed.

Differential Revision: https://reviews.llvm.org/D70123

4 years ago[lldb] Fix dwo variant of TestLibCxxFunction
Pavel Labath [Thu, 14 Nov 2019 15:16:25 +0000 (16:16 +0100)]
[lldb] Fix dwo variant of TestLibCxxFunction

The test was failing due to a bug in SymbolFileDWARF::FindFunctions --
the function was searching the main dwarf unit for DW_TAG_subprograms,
but the main unit is empty in case of split dwarf.  The fix is simple --
search the non-skeleton unit instead.

This bug went unnoticed because this function is expensive, and so one
generally avoids calling it.

4 years ago[InstCombine] regenerate test CHECKs; NFC
Sanjay Patel [Thu, 14 Nov 2019 15:20:48 +0000 (10:20 -0500)]
[InstCombine] regenerate test CHECKs; NFC

There's a discussion about changing a shufflevector
transform in:
https://bugs.llvm.org/show_bug.cgi?id=43958

It would protect against our current undef/poison
behavior, and these are all tests that could be affected.

4 years agoRevert "[ThinLTO] Add correctness check for RO/WO variable import"
Benjamin Kramer [Thu, 14 Nov 2019 15:07:13 +0000 (16:07 +0100)]
Revert "[ThinLTO] Add correctness check for RO/WO variable import"

This reverts commit a2292cc537b561416c21e8d4017715d652c144cc. Breaks
clang selfhost w/ThinLTO.

4 years agoOn FreeBSD use AT_EXECPATH from ELF auxiliary vectors for getExecutablePath
Ed Maste [Wed, 13 Nov 2019 18:24:23 +0000 (13:24 -0500)]
On FreeBSD use AT_EXECPATH from ELF auxiliary vectors for getExecutablePath

/proc/curproc/file and the KERN_PROC_PATHNAME sysctl may not return the
desired path if there are multiple hardlinks to the file, or if the path has
expired from the namecache.

Reviewed By: theraven

Differential Revision: https://reviews.llvm.org/D70198

4 years agoARM: allow rewriting frame indexes for all prefetch variants.
Tim Northover [Thu, 14 Nov 2019 13:26:53 +0000 (13:26 +0000)]
ARM: allow rewriting frame indexes for all prefetch variants.

For some reason we could handle PLD but not PLDW or PLI, but all of them can
potentially refer to the stack region (if weirdly for PLI).

4 years agoGCOVProfiling - fix uninitialized variable warnings + make getFuncChecksum() const...
Simon Pilgrim [Thu, 14 Nov 2019 13:55:28 +0000 (13:55 +0000)]
GCOVProfiling - fix uninitialized variable warnings + make getFuncChecksum() const. NFCI.

4 years agoWholeProgramDevirt - fix uninitialized variable warnings. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:54:29 +0000 (13:54 +0000)]
WholeProgramDevirt - fix uninitialized variable warnings. NFCI.

4 years agoFix uninitialized variable warning. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:53:35 +0000 (13:53 +0000)]
Fix uninitialized variable warning. NFCI.

4 years agoFix uninitialized variable warning. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:52:46 +0000 (13:52 +0000)]
Fix uninitialized variable warning. NFCI.

4 years agoSROA - fix uninitialized variable warnings. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:52:02 +0000 (13:52 +0000)]
SROA - fix uninitialized variable warnings. NFCI.

4 years agoFix uninitialized variable warnings. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:50:38 +0000 (13:50 +0000)]
Fix uninitialized variable warnings. NFCI.

4 years agoHexagon - fix uninitialized variable warnings. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:47:22 +0000 (13:47 +0000)]
Hexagon - fix uninitialized variable warnings. NFCI.

4 years agoMSP430 - fix uninitialized variable warnings. NFCI.
Simon Pilgrim [Thu, 14 Nov 2019 13:32:40 +0000 (13:32 +0000)]
MSP430 - fix uninitialized variable warnings. NFCI.

4 years ago[libc++][P1872] span should have size_type, not index_type.
Louis Dionne [Thu, 14 Nov 2019 14:07:05 +0000 (09:07 -0500)]
[libc++][P1872] span should have size_type, not index_type.

Thanks to Marek Kurdej for the patch.

Differential Revision: https://reviews.llvm.org/D70206

4 years ago[libc++] [P1612] Add missing feature-test macro __cpp_lib_endian.
Louis Dionne [Thu, 14 Nov 2019 13:54:23 +0000 (08:54 -0500)]
[libc++] [P1612] Add missing feature-test macro __cpp_lib_endian.

Thanks to Marek Kurdej for the patch.

Differential Revision: https://reviews.llvm.org/D70221

4 years ago[AArch64][SVE] Implement floating-point comparison & reduction intrinsics
Kerry McLaughlin [Thu, 14 Nov 2019 13:29:57 +0000 (13:29 +0000)]
[AArch64][SVE] Implement floating-point comparison & reduction intrinsics

Summary:
Adds intrinsics for the following:
 - fadda & faddv
 - fminv, fmaxv, fminnmv & fmaxnmv
 - facge & facgt
 - fcmp[eq|ge|gt|ne|uo]

Reviewers: sdesmalen, huntergr, dancgr, mgudim

Reviewed By: sdesmalen

Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, cameron.mcinally, cfe-commits, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69858

4 years ago[clangd] Simplify the code in Index::refs
Ilya Biryukov [Thu, 14 Nov 2019 13:43:07 +0000 (14:43 +0100)]
[clangd] Simplify the code in Index::refs

Summary:
While here, also fix potential UB in MergeIndex.

Thanks Kadir for finding this!

Reviewers: hokein

Reviewed By: hokein

Subscribers: merge_guards_bot, MaskRay, jkorous, arphaman, kadircet, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D70225

4 years ago[LV] PreferPredicateOverEpilog respecting predicate loop hint
Sjoerd Meijer [Thu, 14 Nov 2019 13:10:44 +0000 (13:10 +0000)]
[LV] PreferPredicateOverEpilog respecting predicate loop hint

The vectoriser queries TTI->preferPredicateOverEpilogue to determine if
tail-folding is preferred for a loop, but it was not respecting loop hint
'predicate' that can disable this, which has now been added. This showed that
we were incorrectly initialising loop hint 'vectorize.predicate.enable' with 0
(i.e. FK_Disabled) but this should have been FK_Undefined, which has been
fixed.

Differential Revision: https://reviews.llvm.org/D70125

4 years ago[DAGCombiner] Drop redundant DAG method param. NFC
Paweł Bylica [Thu, 14 Nov 2019 12:37:15 +0000 (13:37 +0100)]
[DAGCombiner] Drop redundant DAG method param. NFC

4 years ago[DAGCombiner] Use TLI field already available. NFC
Paweł Bylica [Thu, 14 Nov 2019 11:44:57 +0000 (12:44 +0100)]
[DAGCombiner] Use TLI field already available. NFC

4 years agoModernize llvm::Error handling in ExternalASTMerger
Raphael Isemann [Thu, 14 Nov 2019 12:36:09 +0000 (13:36 +0100)]
Modernize llvm::Error handling in ExternalASTMerger

4 years ago[libomptarget][nfc] Use cuda variable wrappers from support.h
JonChesterfield [Thu, 14 Nov 2019 12:43:56 +0000 (12:43 +0000)]
[libomptarget][nfc] Use cuda variable wrappers from support.h

Summary:
[libomptarget][nfc] Use cuda variable wrappers from support.h
Reimplementation of D69693, after the revert of D69885

Use the wrappers in support.h for cuda builtin variables at all call sites.
Localises use of cuda and removes WARPSIZE==32 assumption in debug.h.

Reviewers: ABataev, jdoerfert, grokos

Reviewed By: jdoerfert

Subscribers: openmp-commits

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D70186

4 years ago[mips][NFC] Remove old FIXME comment
Miloš Stojanović [Thu, 14 Nov 2019 11:52:56 +0000 (12:52 +0100)]
[mips][NFC] Remove old FIXME comment

This was fixed in rL229595 but this comment was missed.

Differential Revision: https://reviews.llvm.org/D70231

4 years ago[AArch64][SVE] Implement remaining floating-point arithmetic intrinsics
Kerry McLaughlin [Thu, 14 Nov 2019 11:59:00 +0000 (11:59 +0000)]
[AArch64][SVE] Implement remaining floating-point arithmetic intrinsics

Summary:
Adds intrinsics for the following:
  - fabs & fneg
  - fexpa
  - frint[a|i|m|n|p|x|z]
  - frecpe, frecps & frecpx
  - fsqrt, frsqrte & frsqrts

Reviewers: huntergr, sdesmalen, dancgr, mgudim

Reviewed By: sdesmalen

Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, cameron.mcinally, cfe-commits, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69800

4 years ago[AArch64][SVE] Implement additional floating-point arithmetic intrinsics
Kerry McLaughlin [Thu, 14 Nov 2019 11:35:38 +0000 (11:35 +0000)]
[AArch64][SVE] Implement additional floating-point arithmetic intrinsics

Summary:
Adds intrinsics for the following:
  - ftssel
  - fcadd, fcmla
  - fmla, fmls, fnmla, fnmls
  - fmad, fmsb, fnmad, fnmsb

Reviewers: sdesmalen, huntergr, dancgr, mgudim

Reviewed By: sdesmalen

Subscribers: tschuett, kristof.beyls, hiraditya, rkruppe, psnobl, cameron.mcinally, cfe-commits, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69707

4 years agoFix typos in docs. NFC
Diana Picus [Thu, 14 Nov 2019 10:53:53 +0000 (11:53 +0100)]
Fix typos in docs. NFC

4 years ago[NFC] Add one test for PowerPC to verify the sext_inreg for vector type.
QingShan Zhang [Thu, 14 Nov 2019 10:55:49 +0000 (10:55 +0000)]
[NFC] Add one test for PowerPC to verify the sext_inreg for vector type.

4 years agoFix use of add_llvm_tool in projects that build no targets
Kevin Petit [Wed, 13 Nov 2019 09:29:10 +0000 (09:29 +0000)]
Fix use of add_llvm_tool in projects that build no targets

Projects that set LLVM_TARGETS_TO_BUILD to an empty list
can't use add_llvm_tool (and probably other macros).

Here's the error that this change fixes:

list sub-command REMOVE_ITEM requires two or more arguments.

https://reviews.llvm.org/D70167

Signed-off-by: Kevin Petit <kevin.petit@arm.com>
4 years agoRevert "[InstCombine] Fold PHIs with equal incoming pointers"
Daniil Suchkov [Thu, 14 Nov 2019 10:42:01 +0000 (17:42 +0700)]
Revert "[InstCombine] Fold PHIs with equal incoming pointers"

This reverts commit a2f6ae9abffcba260c22bb235879f0576bf3b783.
It is reverted due to clang-cmake-armv7-selfhost buildbot failure.

4 years ago[lldb] Fix that trailing backslashes in source lines break the Clang highlighter
Raphael Isemann [Thu, 14 Nov 2019 10:11:20 +0000 (11:11 +0100)]
[lldb] Fix that trailing backslashes in source lines break the Clang highlighter

Summary:
Clang's raw Lexer doesn't produce any tokens for trailing backslashes in a line. This doesn't work with
LLDB's Clang highlighter which builds the source code to display from the list of tokens the Lexer returns.
This causes that lines with trailing backslashes are lacking the backslash and the following newline when
rendering source code in LLDB.

This patch removes the trailing newline from the current line we are highlighting. This way Clang doesn't
drop the backslash token and we just restore the newline after tokenising.

Fixes rdar://57091487

Reviewers: JDevlieghere, labath

Reviewed By: JDevlieghere, labath

Subscribers: labath, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D70177

4 years ago[InstCombine] Fold PHIs with equal incoming pointers
Daniil Suchkov [Thu, 14 Nov 2019 08:25:31 +0000 (15:25 +0700)]
[InstCombine] Fold PHIs with equal incoming pointers

This is a resubmission of bbb29738b58aaf6f6518269abdcf8f64131665a9 that
was reverted due to clang tests failures. It includes the fix and
additional IR tests for the missed case.

Summary:
In case when all incoming values of a PHI are equal pointers, this
transformation inserts a definition of such a pointer right after
definition of the base pointer and replaces with this value both PHI and
all it's incoming pointers. Primary goal of this transformation is
canonicalization of this pattern in order to enable optimizations that
can't handle PHIs. Non-inbounds pointers aren't currently supported.

Reviewers: spatel, RKSimon, lebedev.ri, apilipenko

Reviewed By: apilipenko

Tags: #llvm

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D68128

4 years ago[AArch64][DebugInfo] Fix incorrect call site param value produced by MOVZXi
Djordje Todorovic [Thu, 14 Nov 2019 07:32:03 +0000 (08:32 +0100)]
[AArch64][DebugInfo] Fix incorrect call site param value produced by MOVZXi

This resolves the problem with the truncation of the immediate operand.

Differential Revision: https://reviews.llvm.org/D70168

4 years ago[NFC] Fix typo in ARMBaseRegisterInfo
Anna Welker [Thu, 14 Nov 2019 09:43:26 +0000 (09:43 +0000)]
[NFC] Fix typo in ARMBaseRegisterInfo

4 years ago[ThinLTO] Add correctness check for RO/WO variable import
evgeny [Thu, 14 Nov 2019 09:24:05 +0000 (12:24 +0300)]
[ThinLTO] Add correctness check for RO/WO variable import

This patch adds an assertion check for exported read/write-only
variables to be also in import list for module. If they aren't
we may face linker errors, because read/write-only variables are
internalized in their source modules. The patch also changes
export lists to store ValueInfo instead of GUID for performance
considerations.

Differential revision: https://reviews.llvm.org/D70128

4 years agoDWARFDebugLoclists: stricter base address handling
Pavel Labath [Tue, 12 Nov 2019 10:36:19 +0000 (11:36 +0100)]
DWARFDebugLoclists: stricter base address handling

Summary:
This removes the use of zero as a base address in section-based dumping.
Although this will often be true for (unlinked) object files with a
single compile unit, it is not true in general. This means that
section-based dumping will not be able to resolve entries referencing
the base address (DW_LLE_offset_pair) -- it wasn't able to do that
correctly before either, but now it will be more explicit about it. One
exception to that is if the location list contains an explicit
DW_LLE_base_address entry -- in this case the dumper will pick it up,
and resolve subsequent entries normally.

The patch also removes the fallback to zero in the "inline" dumping in
case the compile unit does not contain a base address.

Reviewers: dblaikie, probinson, JDevlieghere, aprantl, SouraVX

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D70115

4 years ago[lldb][NFC] Simplify IOHandler constructor/destructor setup
Raphael Isemann [Thu, 14 Nov 2019 08:47:10 +0000 (09:47 +0100)]
[lldb][NFC] Simplify IOHandler constructor/destructor setup

We only need a default constructor because of DISALLOW_COPY_AND_ASSIGN,
but the non-virtual destructor isn't needed.

4 years ago[LLDB] Fix whitespace/tabs mismatch in lldbsuite Makefile.rules
Muhammad Omair Javaid [Thu, 14 Nov 2019 08:53:51 +0000 (13:53 +0500)]
[LLDB] Fix whitespace/tabs mismatch in lldbsuite Makefile.rules

This patch fixes whitespace/tabs mismatch in
lldb/packages/Python/lldbsuite/test/make/Makefile.rules

Legacy make files always used tabs though modern make version can
work with white-spaces I have chosen the legacy just to be safe.

Signed-off-by: Muhammad Omair Javaid <omair.javaid@linaro.org>
Differential Revision: https://reviews.llvm.org/D70154

4 years ago[clang][IFS][test] Reverting driver-test.c to what it was prior to e782192d5e6
Puyan Lotfi [Thu, 14 Nov 2019 08:39:16 +0000 (03:39 -0500)]
[clang][IFS][test] Reverting driver-test.c to what it was prior to e782192d5e6

My mistake. Changes I had in this test were for code changes that are
not landed yet. I am reverting driver-test.c back to what it was
originally.

4 years ago[clang][IFS][test] Removing -shared, fixing triple: driver-test.c/windows.cpp.
Puyan Lotfi [Thu, 14 Nov 2019 07:41:28 +0000 (02:41 -0500)]
[clang][IFS][test] Removing -shared, fixing triple: driver-test.c/windows.cpp.

Removing -shared as it is not used on a lot of targets in order to green failing
bots with this change. Also, tiding up the windows.cpp test as the
triple compile out can look slightly different that what you specified
on a windows bot.

4 years ago[clang][IFS][test][NFC] Tightening up clang-ifs tests to use -cc1 more often.
Puyan Lotfi [Thu, 14 Nov 2019 04:58:09 +0000 (23:58 -0500)]
[clang][IFS][test][NFC] Tightening up clang-ifs tests to use -cc1 more often.

Unless the test is explicitly testing a driver feature if clang
interface stubs I have changed the tests to use %clang_cc1. This should
make some changes I plan to make to the driver job pipeline cause fewer
test changes and breakages.

4 years agoCheck result of emitStrLen before passing it to CreateGEP
Dimitry Andric [Wed, 13 Nov 2019 21:15:30 +0000 (22:15 +0100)]
Check result of emitStrLen before passing it to CreateGEP

Summary:
This fixes PR43081, where the transformation of `strchr(p, 0) -> p +
strlen(p)` can cause a segfault, if `-fno-builtin-strlen` is used.  In
that case, `emitStrLen` returns nullptr, which CreateGEP is not designed
to handle.  Also add the minimized code from the PR as a test case.

Reviewers: xbolva00, spatel, jdoerfert, efriedma

Reviewed By: efriedma

Subscribers: lebedev.ri, hiraditya, cfe-commits, llvm-commits

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D70143

4 years ago[mips] Use local variable to escape repetitive calls of `getOpcode`. NFC
Simon Atanasyan [Thu, 14 Nov 2019 06:05:24 +0000 (09:05 +0300)]
[mips] Use local variable to escape repetitive calls of `getOpcode`. NFC

4 years ago[mips] Use isInt<> call instead of explicit range checking. NFC
Simon Atanasyan [Thu, 14 Nov 2019 05:45:37 +0000 (08:45 +0300)]
[mips] Use isInt<> call instead of explicit range checking. NFC