platform/upstream/llvm.git
5 years agogn build: Fix check-clangd target after r359825
Nico Weber [Wed, 22 May 2019 19:03:45 +0000 (19:03 +0000)]
gn build: Fix check-clangd target after r359825

llvm-svn: 361419

5 years ago[clang-tidy] Add support for writing a check as a Transformer rewrite rule.
Yitzhak Mandelbaum [Wed, 22 May 2019 18:56:18 +0000 (18:56 +0000)]
[clang-tidy] Add support for writing a check as a Transformer rewrite rule.

This revision introduces an adaptor from Transformer's rewrite rules
(`clang::tooling::RewriteRule`) to `ClangTidyCheck`.  For example, given a
RewriteRule `MyCheckAsRewriteRule`, it lets one define a tidy check as follows:

```
class MyTidyCheck : public TransformerClangTidyCheck {
 public:
  MyTidyCheck(StringRef Name, ClangTidyContext *Context)
      : TransformerClangTidyCheck(MyCheckAsRewriteRule, Name, Context) {}
};
```

Reviewers: aaron.ballman

Subscribers: mgorny, xazax.hun, cfe-commits, ilya-biryukov

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61386

llvm-svn: 361418

5 years ago[DebugInfo][AArch64] Recognise target specific instruction as mov instr
Alexey Lapshin [Wed, 22 May 2019 18:48:58 +0000 (18:48 +0000)]
[DebugInfo][AArch64] Recognise target specific instruction as mov instr

This fix is for the problem from https://bugs.llvm.org/show_bug.cgi?id=38714.
Specifically, Simple Register Coalescing creates following conversion :

 undef %0.sub_32:gpr64 = ORRWrs $wzr, %3:gpr32common, 0, debug-location !24;

It copies 32-bit value from gpr32 into gpr64. But Live DEBUG_VALUE analysis
is not able to create debug location record for that instruction. So the problem
is in that debug info for argc variable is incorrect. The fix is
to write custom isCopyInstrImpl() which would recognize the ORRWrs instr.

llvm-svn: 361417

5 years ago[PGO][CHR] Speed up following long use-def chains.
Hiroshi Yamauchi [Wed, 22 May 2019 18:37:34 +0000 (18:37 +0000)]
[PGO][CHR] Speed up following long use-def chains.

Summary: Avoid visiting an instruction more than once by using a map.

Reviewers: davidxl

Reviewed By: davidxl

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62262

llvm-svn: 361416

5 years ago[NFC][InstCombine] Add unary fneg tests to maxnum.ll/minnum.ll
Cameron McInally [Wed, 22 May 2019 18:27:43 +0000 (18:27 +0000)]
[NFC][InstCombine] Add unary fneg tests to maxnum.ll/minnum.ll

llvm-svn: 361415

5 years ago[libcxx][test] Fix order checking in some more unordered_multimap tests
Louis Dionne [Wed, 22 May 2019 18:10:32 +0000 (18:10 +0000)]
[libcxx][test] Fix order checking in some more unordered_multimap tests

Some tests assume that iteration through an unordered multimap elements
will return them in the same order as at the container creation. This
assumption is not true since the container is unordered, so that no
specific order of elements is ever guaranteed for such container. This
patch is a continuation of D54838 and introduces checks verifying that
any iteration will return elements exactly from a set of valid values
and without repetition, but in no particular order.

Thanks to Andrey Maksimov for the patch.

Differential Revision: https://reviews.llvm.org/D56498

llvm-svn: 361414

5 years ago[LibTooling] Update Stencil to use RangeSelector
Yitzhak Mandelbaum [Wed, 22 May 2019 18:03:00 +0000 (18:03 +0000)]
[LibTooling] Update Stencil to use RangeSelector

Add support for creating a `StencilPart` from any `RangeSelector`, which
broadens the scope of `Stencil`.

Correspondingly, deprecate Stencil's specialized combinators `node` and `sNode`
in favor of using the new `selection` combinator directly (with the appropriate
range selector).

Reviewers: sbenza

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62160

llvm-svn: 361413

5 years ago[EditLine] Rewrite GetHistoryFilePath
Jonas Devlieghere [Wed, 22 May 2019 17:46:59 +0000 (17:46 +0000)]
[EditLine] Rewrite GetHistoryFilePath

Rewrite the GetHistoryFilePath implementation without relying on
FileSpec in the spirit of our discussion in D61994.

It changes LLDBs behavior in two ways:

1. We now only use the -widehistory suffix when LLDB is built with wchar
   support, instead of as the fallback from when the ~/.lldb directory
   isn't writable.

2. When the ~/.lldb directory isn't writable, we don't write any history
   files at all. Previously we would write them to the user's home
   directory (with the incorrect wide suffix), polluting ~ with a
   different file for every IO handler.

Differential revision: https://reviews.llvm.org/D62216

llvm-svn: 361412

5 years agoFixed a -Wunused-variable warning when assertions are disabled
Dmitri Gribenko [Wed, 22 May 2019 17:45:24 +0000 (17:45 +0000)]
Fixed a -Wunused-variable warning when assertions are disabled

llvm-svn: 361411

5 years agoDisable EHFrameSupport in JITLink/RuntimeDyld on AIX
Xing Xue [Wed, 22 May 2019 17:41:27 +0000 (17:41 +0000)]
Disable EHFrameSupport in JITLink/RuntimeDyld on AIX

Summary:
EH Frames aren't supported on AIX with the system compiler, but the definition of HAVE_EHTABLE_SUPPORT misses this which causes linking problems on AIX. This patch updates the definition of HAVE_EHTABLE_SUPPORT in both JITLink and RuntimeDyld.

Author: daltenty

Reviewers: sfertile, xingxue, hubert.reinterpretcase

Reviewed By: xingxue

Subscribers: hiraditya, jsji, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62203

llvm-svn: 361410

5 years ago[NFC][X86][AArch64] Add tests for missing (x - y) + -1 -> not(y) + x fold
Roman Lebedev [Wed, 22 May 2019 16:58:26 +0000 (16:58 +0000)]
[NFC][X86][AArch64] Add tests for missing (x - y) + -1  ->  not(y) + x  fold

https://rise4fun.com/Alive/OaY

llvm-svn: 361409

5 years agoFixed third issue reported in https://bugs.llvm.org/show_bug.cgi?id=41584.
Andrey Churbanov [Wed, 22 May 2019 16:48:05 +0000 (16:48 +0000)]
Fixed third issue reported in https://bugs.llvm.org/show_bug.cgi?id=41584.

Removed wrong debug assertion.

Differential Revision: https://reviews.llvm.org/D62251

llvm-svn: 361408

5 years ago[libFuzzer] Ignore synthetic exceptions on Fuchsia
Petr Hosek [Wed, 22 May 2019 16:36:35 +0000 (16:36 +0000)]
[libFuzzer] Ignore synthetic exceptions on Fuchsia

Fuchsia has several exceptions which are merely informational and should
not be treated as crashes. This patch puts logic that read from the
exception port and handled the exception in a loop, and ignores
non-exceptions and informational exceptions.

Patch By: aarongreen

Differential Revision: https://reviews.llvm.org/D62226

llvm-svn: 361407

5 years agoAMDGPU: Move disassembler support check to constructor
Matt Arsenault [Wed, 22 May 2019 16:28:48 +0000 (16:28 +0000)]
AMDGPU: Move disassembler support check to constructor

Don't check for unsupported targets for every instruction.

llvm-svn: 361406

5 years agoMC: Allow getMaxInstLength to depend on the subtarget
Matt Arsenault [Wed, 22 May 2019 16:28:41 +0000 (16:28 +0000)]
MC: Allow getMaxInstLength to depend on the subtarget

Keep it optional in cases this is ever needed in some global
context. Currently it's only used for getting an upper bound inline
asm code size.

For AMDGPU, gfx10 increases the maximum instruction size to
20-bytes. This avoids penalizing older subtargets when estimating code
size, and making some annoying branch relaxation test adjustments.

llvm-svn: 361405

5 years ago[TargetLowering] Extend bool args to inline-asm according to getBooleanType
Kees Cook [Wed, 22 May 2019 16:16:15 +0000 (16:16 +0000)]
[TargetLowering] Extend bool args to inline-asm according to getBooleanType

Summary:
This extends Krzysztof Parzyszek's X86-specific solution
(https://reviews.llvm.org/D60208) to the generic code pointed out by
James Y Knight.

Reviewers: kparzysz, craig.topper, nickdesaulniers

Subscribers: efriedma, sdardis, nemanjai, javed.absar, eraman, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, PkmX, jocewei, jsji, llvm-commits, srhines, void, nickdesaulniers, jyknight

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60224

llvm-svn: 361404

5 years ago[TargetLowering] Add blank line (test commit)
Kees Cook [Wed, 22 May 2019 16:02:13 +0000 (16:02 +0000)]
[TargetLowering] Add blank line (test commit)

llvm-svn: 361403

5 years agollvm-undname: Fix an assert-on-invalid, found by oss-fuzz
Nico Weber [Wed, 22 May 2019 15:53:23 +0000 (15:53 +0000)]
llvm-undname: Fix an assert-on-invalid, found by oss-fuzz

If a template parameter refers to a pointer to member, but the mangling
of that was a string literal instead of a real symbol, llvm-undname used
to crash instead of rejecting the input.

llvm-svn: 361402

5 years ago[IR] allow fast-math-flags on select of FP values
Sanjay Patel [Wed, 22 May 2019 15:50:46 +0000 (15:50 +0000)]
[IR] allow fast-math-flags on select of FP values

This is a minimal start to correcting a problem most directly discussed in PR38086:
https://bugs.llvm.org/show_bug.cgi?id=38086

We have been hacking around a limitation for FP select patterns by using the
fast-math-flags on the condition of the select rather than the select itself.
This patch just allows FMF to appear with the 'select' opcode. No changes are
needed to "FPMathOperator" because it already includes select-of-FP because
that definition is based on the (return) value type.

Once we have this ability, we can start correcting and adding IR transforms
to use the FMF on a 'select' instruction. The instcombine and vectorizer test
diffs only show that the IRBuilder change is behaving as expected by applying
an FMF guard value to 'select'.

For reference:
rL241901 - allowed FMF with fcmp
rL255555 - allowed FMF with FP calls

Differential Revision: https://reviews.llvm.org/D61917

llvm-svn: 361401

5 years agoCombine two if cases because the second one is never reached.
Amy Huang [Wed, 22 May 2019 15:48:59 +0000 (15:48 +0000)]
Combine two if cases because the second one is never reached.

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62214

llvm-svn: 361400

5 years agoUnbreak non-PIC builds after r361340/D62174
David Zarzycki [Wed, 22 May 2019 15:48:12 +0000 (15:48 +0000)]
Unbreak non-PIC builds after r361340/D62174

llvm-svn: 361399

5 years ago[NFC][ARM] addsubcarry-promotion.ll: whoops - replace '.' with '-' in check-prefix
Roman Lebedev [Wed, 22 May 2019 15:42:33 +0000 (15:42 +0000)]
[NFC][ARM] addsubcarry-promotion.ll: whoops - replace '.' with '-' in check-prefix

Does not affect update_llc_test_checks, or the actual output,
but is not accepted by the actual FileCheck.

Sorry, i should have noticed this before committing,
not the very next second after..

llvm-svn: 361398

5 years ago[NFC][ARM] Autogenerate addsubcarry-promotion.ll test
Roman Lebedev [Wed, 22 May 2019 15:34:51 +0000 (15:34 +0000)]
[NFC][ARM] Autogenerate addsubcarry-promotion.ll test

Being affected by upcoming patch

llvm-svn: 361397

5 years ago[NFC][X86] Autogenerate negative-offset.ll test
Roman Lebedev [Wed, 22 May 2019 15:34:43 +0000 (15:34 +0000)]
[NFC][X86] Autogenerate negative-offset.ll test

Being affected by upcoming patch

llvm-svn: 361396

5 years ago[llvm-objdump] Dump inline relocations if the relocated section is specified with...
Fangrui Song [Wed, 22 May 2019 15:12:51 +0000 (15:12 +0000)]
[llvm-objdump] Dump inline relocations if the relocated section is specified with --section

This fixes PR41886: llvm-objdump -d -r -j .text doesn't show inline relocations of .text

While here, switch to stable_sort() because we don't want to change the order of relocations applied to the same location. gABI says consecutive relocation records are composed together and their order matters. In practise it is difficult to see relocations applied to the same location not consecutive, we just have to keep the relative order of relocations with the same offset.

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D62253

llvm-svn: 361395

5 years ago[mips] Use GNU-style output to make tests smaller. NFC
Simon Atanasyan [Wed, 22 May 2019 15:03:52 +0000 (15:03 +0000)]
[mips] Use GNU-style output to make tests smaller. NFC

llvm-svn: 361394

5 years ago[mips] Replace multiple `-check-prefix` by single `-check-prefixes`. NFC
Simon Atanasyan [Wed, 22 May 2019 15:03:42 +0000 (15:03 +0000)]
[mips] Replace multiple `-check-prefix` by single `-check-prefixes`. NFC

llvm-svn: 361393

5 years ago[LibTooling] Update Transformer to use RangeSelector instead of NodePart enum.
Yitzhak Mandelbaum [Wed, 22 May 2019 14:48:19 +0000 (14:48 +0000)]
[LibTooling] Update Transformer to use RangeSelector instead of NodePart enum.

Transformer provides an enum to indicate the range of source text to be edited.
That support is now redundant with the new (and more general) RangeSelector
library, so we remove the custom enum support in favor of supporting any
RangeSelector.

Reviewers: ilya-biryukov

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62149

llvm-svn: 361392

5 years agoReland r361148 with a fix to the buildbot failure.
Ilya Biryukov [Wed, 22 May 2019 14:44:45 +0000 (14:44 +0000)]
Reland r361148 with a fix to the buildbot failure.

Reverted in r361377.
Also reland the '.gn' files (reverted in r361389).

llvm-svn: 361391

5 years ago[NFC][X86][AArch64] Rewrite sink-addsub-of-const.ll tests to have full permutation...
Roman Lebedev [Wed, 22 May 2019 14:42:41 +0000 (14:42 +0000)]
[NFC][X86][AArch64] Rewrite sink-addsub-of-const.ll tests to have full permutation coverage

Somehow missed some patterns initially..
While there, add comments.

llvm-svn: 361390

5 years agogn build: Merge r361377
Nico Weber [Wed, 22 May 2019 14:31:22 +0000 (14:31 +0000)]
gn build: Merge r361377

llvm-svn: 361389

5 years ago[clangd] improve help message for limit-results
Kadir Cetinkaya [Wed, 22 May 2019 14:19:40 +0000 (14:19 +0000)]
[clangd] improve help message for limit-results

Summary: Make it clear that the default is 100.

Patch by Brennan Vincent(@umanwizard)!

Reviewers: #clang-tools-extra, kadircet

Reviewed By: kadircet

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

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61865

llvm-svn: 361388

5 years agoLoopVectorizationCostModel::selectInterleaveCount - assert we have a non-zero loop...
Simon Pilgrim [Wed, 22 May 2019 14:18:17 +0000 (14:18 +0000)]
LoopVectorizationCostModel::selectInterleaveCount - assert we have a non-zero loop cost. NFCI.

The input LoopCost value can be zero, but if so it should be recalculated with the current VF. After that it should always be non-zero.

llvm-svn: 361387

5 years ago[AMDGPU][MC] Corrected parsing of op_sel* and neg_* modifiers
Dmitry Preobrazhensky [Wed, 22 May 2019 13:59:01 +0000 (13:59 +0000)]
[AMDGPU][MC] Corrected parsing of op_sel* and neg_* modifiers

See bug 41361: https://bugs.llvm.org/show_bug.cgi?id=41361

Reviewers: artem.tamazov, arsenm

Differential Revision: https://reviews.llvm.org/D61012

llvm-svn: 361386

5 years ago[llvm-exegesis] Move native target initialization code to a separate file.
Clement Courbet [Wed, 22 May 2019 13:50:16 +0000 (13:50 +0000)]
[llvm-exegesis] Move native target initialization code to a separate file.

Summary: This helps building internal tools on top of the library.

Reviewers: gchatelet

Subscribers: tschuett, llvm-commits, bdb, ondrasej

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62239

llvm-svn: 361385

5 years ago[llvm-objcopy] Tidy up error messages
James Henderson [Wed, 22 May 2019 13:23:26 +0000 (13:23 +0000)]
[llvm-objcopy] Tidy up error messages

This patch brings various error messages into line with each other, by
removing trailing full stops, and making the first letter lower-case.
This addresses https://bugs.llvm.org/show_bug.cgi?id=40859.

Reviewed by: jhenderson, rupprecht, jakehehrlich

Differential Revision: https://reviews.llvm.org/D62072

Patch by Alex Brachet

llvm-svn: 361384

5 years agoAdded a dot at the end of comment
Konrad Kleine [Wed, 22 May 2019 13:23:15 +0000 (13:23 +0000)]
Added a dot at the end of comment

Summary: to test SVN commit access with a simple change.

Reviewers: jankratochvil

Subscribers: mgorny, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62243

llvm-svn: 361383

5 years ago[OpenCL] Support pipe keyword in C++ mode
Sven van Haastregt [Wed, 22 May 2019 13:12:20 +0000 (13:12 +0000)]
[OpenCL] Support pipe keyword in C++ mode

Support the OpenCL C pipe feature in C++ for OpenCL mode, to preserve
backwards compatibility with OpenCL C.

Various changes had to be made in Parse and Sema to enable
pipe-specific diagnostics, so enable a SemaOpenCL test for C++.

Differential Revision: https://reviews.llvm.org/D62181

llvm-svn: 361382

5 years agoUpdateTestChecks: sparc march handling
Roman Lebedev [Wed, 22 May 2019 13:04:34 +0000 (13:04 +0000)]
UpdateTestChecks: sparc march handling

Summary:
Another target that prefers to use `-march` in tests
```
llvm/test/CodeGen/SPARC$ grep -ri mtriple | wc -l
25
llvm/test/CodeGen/SPARC$ grep -ri march | wc -l
165
```

This test is being affected by a further patch,
so regenerate it to better visualize the changes

Reviewers: RKSimon, dcederman, gberry

Reviewed By: RKSimon

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

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62242

llvm-svn: 361381

5 years ago[NFC][SystemZ] Autogenerate alloca-03.ll test to make test changes more visible
Roman Lebedev [Wed, 22 May 2019 13:04:24 +0000 (13:04 +0000)]
[NFC][SystemZ] Autogenerate alloca-03.ll test to make test changes more visible

The check lines are being affected by an upcoming patch,
regenerate the checklines to visualize the changes better.

llvm-svn: 361380

5 years ago[CGOpenMPRuntime] emitX86DeclareSimdFunction - assert simdlen/cdtsize is not zero...
Simon Pilgrim [Wed, 22 May 2019 13:02:19 +0000 (13:02 +0000)]
[CGOpenMPRuntime] emitX86DeclareSimdFunction - assert simdlen/cdtsize is not zero. NFCI.

Fixes scan-build division by zero warning.

llvm-svn: 361379

5 years agoClang-formatting the header in advance of other planned changes; NFC.
Aaron Ballman [Wed, 22 May 2019 13:01:28 +0000 (13:01 +0000)]
Clang-formatting the header in advance of other planned changes; NFC.

llvm-svn: 361378

5 years agoRevert r361148 "[Syntax] Introduce TokenBuffer, start clangToolingSyntax library"
Russell Gallop [Wed, 22 May 2019 12:50:52 +0000 (12:50 +0000)]
Revert r361148 "[Syntax] Introduce TokenBuffer, start clangToolingSyntax library"

Also reverted r361264 "[Syntax] Rename TokensTest to SyntaxTests. NFC"
which built on it. This is because there were hitting an assert on bots

http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-ubuntu-fast
http://lab.llvm.org:8011/builders/llvm-clang-lld-x86_64-scei-ps4-windows10pro-fast

llvm-svn: 361377

5 years ago[Frontend] Return an error on bad inputs to PrecompiledPreabmle
Ilya Biryukov [Wed, 22 May 2019 12:50:01 +0000 (12:50 +0000)]
[Frontend] Return an error on bad inputs to PrecompiledPreabmle

Summary:
Instead of failing with assertions. Fixes a crash found by oss-fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=12865

Reviewers: sammccall

Reviewed By: sammccall

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D62137

llvm-svn: 361376

5 years ago[Hexagon] assert getRegisterBitWidth returns non-zero value. NFCI.
Simon Pilgrim [Wed, 22 May 2019 12:25:46 +0000 (12:25 +0000)]
[Hexagon] assert getRegisterBitWidth returns non-zero value. NFCI.

Fixes scan-build warning.

llvm-svn: 361375

5 years agoMark tests from r361278 as unsupported on Windows.
Russell Gallop [Wed, 22 May 2019 12:07:52 +0000 (12:07 +0000)]
Mark tests from r361278 as unsupported on Windows.

llvm-svn: 361374

5 years agoDWARF: Add debug_ranges/rnglists tests
Pavel Labath [Wed, 22 May 2019 11:44:36 +0000 (11:44 +0000)]
DWARF: Add debug_ranges/rnglists tests

.debug_ranges parsing is not well tested [citation needed] because this
section tends to be only used in optimized code, and we don't build
optimized executables in our tests, as they produce unpredictable
results.

This patch aims to add some very simple tests for parsing static range
data, which can serve as a first line of defense in case things break.

I also include one XFAILed test, which demonstrates that we don't
correctly handle mixed DWARF v5 and v4 ranges in a single file.

llvm-svn: 361373

5 years ago[ARM][AArch64] Fix incorrect handling of alignment in va_arg code generation
John Brawn [Wed, 22 May 2019 11:42:54 +0000 (11:42 +0000)]
[ARM][AArch64] Fix incorrect handling of alignment in va_arg code generation

Overaligned and underaligned types (i.e. types where the alignment has been
increased or decreased using the aligned and packed attributes) weren't being
correctly handled in all cases, as the unadjusted alignment should be used.

This patch also adjusts getTypeUnadjustedAlign to correctly handle typedefs of
non-aggregate types, which it appears it never had to handle before.

Differential Revision: https://reviews.llvm.org/D62152

llvm-svn: 361372

5 years ago[VirtualFileSystem] Fix uninitialized variable warning. NFCI.
Simon Pilgrim [Wed, 22 May 2019 11:20:52 +0000 (11:20 +0000)]
[VirtualFileSystem] Fix uninitialized variable warning. NFCI.

llvm-svn: 361371

5 years ago[TargetMachine] error message unsupported code model
Sjoerd Meijer [Wed, 22 May 2019 10:40:26 +0000 (10:40 +0000)]
[TargetMachine] error message unsupported code model

When the tiny code model is requested for a target machine that does not
support this, we get an error message (which is nice) but also this diagnostic
and request to submit a bug report:

    fatal error: error in backend: Target does not support the tiny CodeModel
    [Inferior 2 (process 31509) exited with code 0106]
    clang-9: error: clang frontend command failed with exit code 70 (use -v to see invocation)
    (gdb) clang version 9.0.0 (http://llvm.org/git/clang.git 29994b0c63a40f9c97c664170244a7bba5ecc15e) (http://llvm.org/git/llvm.git 95606fdf91c2d63a931e865f4b78b2e9828ddc74)
    Target: arm-arm-none-eabi
    Thread model: posix
    clang-9: note: diagnostic msg: PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace, preprocessed source, and associated run script.
    clang-9: note: diagnostic msg:
    ********************
    PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
    Preprocessed source(s) and associated run script(s) are located at:
    clang-9: note: diagnostic msg: /tmp/tiny-dfe1a2.c
    clang-9: note: diagnostic msg: /tmp/tiny-dfe1a2.sh
    clang-9: note: diagnostic msg:

But this is not a bug, this is a feature. :-) Not only is this not a bug, this
is also pretty confusing. This patch causes just to print the fatal error and
not the diagnostic:

fatal error: error in backend: Target does not support the tiny CodeModel

Differential Revision: https://reviews.llvm.org/D62236

llvm-svn: 361370

5 years ago[Driver][Windows] Add dependent lib argument for -fprofile-generate and -fcs-profile...
Russell Gallop [Wed, 22 May 2019 10:06:49 +0000 (10:06 +0000)]
[Driver][Windows] Add dependent lib argument for -fprofile-generate and -fcs-profile-generate

Follows on from r360674 which added it for -fprofile-instr-generate.

Differential Revision: https://reviews.llvm.org/D62200

llvm-svn: 361368

5 years ago[llvm-dlltool] Respect NONAME keyword
Martin Storsjo [Wed, 22 May 2019 09:49:54 +0000 (09:49 +0000)]
[llvm-dlltool] Respect NONAME keyword

This adds proper handling of the NONAME-keyword, which makes llvm-dlltool
generate an import using the ordinal instead of the name.

Patch by by Jannik Vogel, test added by Stefan Schmidt.

Differential Revision: https://reviews.llvm.org/D62175

llvm-svn: 361367

5 years agoRe-land r361257 "[MergeICmps][NFC] Make BCEAtom move-only.""
Clement Courbet [Wed, 22 May 2019 09:45:40 +0000 (09:45 +0000)]
Re-land r361257 "[MergeICmps][NFC] Make BCEAtom move-only.""

llvm-svn: 361366

5 years ago[PPC64] Fix PPC64TargetInfo ABI on clang side after D61950
Fangrui Song [Wed, 22 May 2019 09:26:46 +0000 (09:26 +0000)]
[PPC64] Fix PPC64TargetInfo ABI on clang side after D61950

llvm-svn: 361365

5 years agoCopy symbol length when we replace a symbol.
Rui Ueyama [Wed, 22 May 2019 09:19:30 +0000 (09:19 +0000)]
Copy symbol length when we replace a symbol.

Symbol's NameSize is computed lazily. Currently, when we replace a symbol,
a cached length value can be discarded. This patch propagates that value.

Differential Revision: https://reviews.llvm.org/D62234

llvm-svn: 361364

5 years ago[PPC64] Fix PPC64TargetInfo after D61950
Fangrui Song [Wed, 22 May 2019 09:17:21 +0000 (09:17 +0000)]
[PPC64] Fix PPC64TargetInfo after D61950

llvm-svn: 361363

5 years agoAdd AST logging
Gabor Marton [Wed, 22 May 2019 09:10:19 +0000 (09:10 +0000)]
Add AST logging

Summary:
Log the AST of the TU associated with LLDB's `expr` command, once a declaration
is completed

Reviewers: shafik

Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D62061

llvm-svn: 361362

5 years agoDWARFDebugInfoEntry: remove unused variable
Pavel Labath [Wed, 22 May 2019 09:09:44 +0000 (09:09 +0000)]
DWARFDebugInfoEntry: remove unused variable

llvm-svn: 361361

5 years agoDWARF: Introduce DWARFTypeUnit class
Pavel Labath [Wed, 22 May 2019 09:09:39 +0000 (09:09 +0000)]
DWARF: Introduce DWARFTypeUnit class

Summary:
This patch introduces the DWARFTypeUnit class, and teaches lldb to parse
type units out of both the debug_types section (DWARF v4), and from the
regular debug_info section (DWARF v5).

The most important piece of functionality - resolving DW_AT_signatures
to connect type forward declarations to their definitions - is not
implemented here, but even without that, a lot of functionality becomes
available. I've added tests for the commands that start to work after
this patch.

The changes in this patch were greatly inspired by D61505, which in turn took
over changes from D32167.

Reviewers: JDevlieghere, clayborg, aprantl

Subscribers: mgorny, jankratochvil, lldb-commits

Differential Revision: https://reviews.llvm.org/D62008

llvm-svn: 361360

5 years ago[ELF] Improve error message for relocations to symbols defined in discarded sections
Fangrui Song [Wed, 22 May 2019 09:06:42 +0000 (09:06 +0000)]
[ELF] Improve error message for relocations to symbols defined in discarded sections

Rather than report "undefined symbol: ", give more informative message
about the object file that defines the discarded section.

In particular, PR41133, if the section is a discarded COMDAT, print the
section group signature and the object file with the prevailing
definition. This is useful to track down some ODR issues.

We need to
* add `uint32_t DiscardedSecIdx` to Undefined for this feature.
* make ComdatGroups public and change its type to DenseMap<CachedHashStringRef, const InputFile *>

Reviewed By: ruiu

Differential Revision: https://reviews.llvm.org/D59649

llvm-svn: 361359

5 years agoDelete unnecessary copy ctors
Fangrui Song [Wed, 22 May 2019 08:38:23 +0000 (08:38 +0000)]
Delete unnecessary copy ctors

llvm-svn: 361358

5 years ago[Sanitizer] Add interceptor for wcsdup
Pavel Labath [Wed, 22 May 2019 08:34:56 +0000 (08:34 +0000)]
[Sanitizer] Add interceptor for wcsdup

Summary: The wide-string equivalent of strdup. Implementation trivial.

Reviewers: vitalybuka, eugenis

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

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D62189

llvm-svn: 361357

5 years ago[MIR] Add simple PRE pass to MachineCSE
Anton Afanasyev [Wed, 22 May 2019 07:41:34 +0000 (07:41 +0000)]
[MIR] Add simple PRE pass to MachineCSE

This is the second part of the commit fixing PR38917 (hoisting
partitially redundant machine instruction). Most of PRE (partitial
redundancy elimination) and CSE work is done on LLVM IR, but some of
redundancy arises during DAG legalization. Machine CSE is not enough
to deal with it. This simple PRE implementation works a little bit
intricately: it passes before CSE, looking for partitial redundancy
and transforming it to fully redundancy, anticipating that the next
CSE step will eliminate this created redundancy. If CSE doesn't
eliminate this, than created instruction will remain dead and eliminated
later by Remove Dead Machine Instructions pass.

The third part of the commit is supposed to refactor MachineCSE,
to make it more clear and to merge MachinePRE with MachineCSE,
so one need no rely on further Remove Dead pass to clear instrs
not eliminated by CSE.

First step: https://reviews.llvm.org/D54839

Fixes llvm.org/PR38917

llvm-svn: 361356

5 years ago[PPC64] Parse -elfv1 -elfv2 when specified on target triple
Fangrui Song [Wed, 22 May 2019 07:29:59 +0000 (07:29 +0000)]
[PPC64] Parse -elfv1 -elfv2 when specified on target triple

Summary:
For big-endian powerpc64, the default ABI is ELFv1. OpenPower ABI ELFv2 is supported when -mabi=elfv2 is specified. FreeBSD support for PowerPC64 ELFv2 ABI with LLVM is in progress[1]. This patch adds an alternative way to specify ELFv2 ABI on target triple [2].

The following results are expected:

ELFv1 when using:
-target powerpc64-unknown-freebsd12.0
-target powerpc64-unknown-freebsd12.0 -mabi=elfv1
-target powerpc64-unknown-freebsd12.0-elfv1

ELFv2 when using:
-target powerpc64-unknown-freebsd12.0 -mabi=elfv2
-target powerpc64-unknown-freebsd12.0-elfv2

[1] https://wiki.freebsd.org/powerpc/llvm-elfv2
[2] https://clang.llvm.org/docs/CrossCompilation.html

Patch by Alfredo Dal'Ava Júnior!

Differential Revision: https://reviews.llvm.org/D61950

llvm-svn: 361355

5 years ago[AArch64] Subtarget crypto extension defaults
Sjoerd Meijer [Wed, 22 May 2019 07:10:27 +0000 (07:10 +0000)]
[AArch64] Subtarget crypto extension defaults

The Armv8.2-A crypto extensions all defaulted to true, but should default to
false, like all the other extensions.

Differential Revision: https://reviews.llvm.org/D62180

llvm-svn: 361354

5 years agoFixed a -Wunused-variable warning when assertions are disabled
Dmitri Gribenko [Wed, 22 May 2019 06:57:23 +0000 (06:57 +0000)]
Fixed a -Wunused-variable warning when assertions are disabled

llvm-svn: 361353

5 years ago[X86] Don't compare i128 through vector if construction not cheap (PR41971)
Nikita Popov [Wed, 22 May 2019 06:47:06 +0000 (06:47 +0000)]
[X86] Don't compare i128 through vector if construction not cheap (PR41971)

Fix for https://bugs.llvm.org/show_bug.cgi?id=41971. Make the
combineVectorSizedSetCCEquality() transform more conservative by
checking that the bitcast to the vector type will be cheap/free
for both operands. I'm considering it cheap if it's a constant,
a load or already a vector. I've dropped the explicit check for
f128 because it should fall out naturally (in the cases where
it'd be detrimental).

Differential Revision: https://reviews.llvm.org/D62220

llvm-svn: 361352

5 years agoProperly categorize llvm-objdump options
Serge Guelton [Wed, 22 May 2019 06:30:46 +0000 (06:30 +0000)]
Properly categorize llvm-objdump options

Filters out noise, and distinguish Mach-O related options from others.

Differential Revision: https://reviews.llvm.org/D62195

llvm-svn: 361351

5 years agoSimplify the logic to instantiate Symbols. Should be NFC.
Rui Ueyama [Wed, 22 May 2019 04:56:25 +0000 (04:56 +0000)]
Simplify the logic to instantiate Symbols. Should be NFC.

llvm-svn: 361350

5 years ago[NFC] Remove a blank line (test commit)
Seiya Nuta [Wed, 22 May 2019 04:48:26 +0000 (04:48 +0000)]
[NFC] Remove a blank line (test commit)

llvm-svn: 361349

5 years agoSpeculative fix for std stream destruction order on Windows.
Eric Fiselier [Wed, 22 May 2019 03:45:49 +0000 (03:45 +0000)]
Speculative fix for std stream destruction order on Windows.

The MSVC CRT uses TLS storage to implement per-thread locales.
This storage gets freed during program termination, and if we attempt
to do any io operations (like flushing the std streams) after this occurs
the program may abort.

This patch is a speculative fix for that issue.

The fix tries forcing the initialization of the locale TLS before
initializing the std streams. This should mean that the TLS is freed
after we destroy the streams.

llvm-svn: 361348

5 years ago[PowerPC] use meaningful name for displacement form aligned with x-form - NFC
Chen Zheng [Wed, 22 May 2019 03:17:39 +0000 (03:17 +0000)]
[PowerPC] use meaningful name for displacement form aligned with x-form - NFC

llvm-svn: 361347

5 years ago[PowerPC] [ISEL] select x-form instruction for unaligned offset
Chen Zheng [Wed, 22 May 2019 02:57:31 +0000 (02:57 +0000)]
[PowerPC] [ISEL] select x-form instruction for unaligned offset
Differential Revision: https://reviews.llvm.org/D62173

llvm-svn: 361346

5 years ago[docs] Fix troff macro (.F1 -> .Fl) in ld.lld.1
Fangrui Song [Wed, 22 May 2019 02:15:25 +0000 (02:15 +0000)]
[docs] Fix troff macro (.F1 -> .Fl) in ld.lld.1

llvm-svn: 361345

5 years ago[clang-tidy] remove default header-filter for run-clang-tidy
Don Hinton [Wed, 22 May 2019 01:01:11 +0000 (01:01 +0000)]
[clang-tidy] remove default header-filter for run-clang-tidy

Summary:
run-clang-tidy.py was enforcing '-header-filter' parameter with an
unfortunate default value when none was given. Thus, leading to
overwritten clang-tidy configuration (e.g. from .clang-tidy).

This change removes the default value for '-header-filter' resulting in
the default behaviour of clang-tidy itself.

Fixes PR#41426

Reviewed By: hintonda

Patch by Torbjörn Klatt!

Tags: #clang-tools-extra, #clang

Differential Revision: https://reviews.llvm.org/D61747

llvm-svn: 361344

5 years ago[Docs] Increase Doxygen cache size
Don Hinton [Wed, 22 May 2019 00:56:42 +0000 (00:56 +0000)]
[Docs] Increase Doxygen cache size

Summary:
When building Doxygen docs for llvm and clang, it helpfully prints a warning at
the end noting that the `LOOKUP_CACHE_SIZE` value was too small to keep all
symbols in memory.

By increasing to the size it recommends, Doxygen builds have greatly improved
performance. On my machine, time to run `doxygen-llvm` changes from 34 minutes
to 22 minutes, which is a decent amount of time saved by changing a single
number.

Reviewed By: hintonda

Patch by J. Ryan Stinnett!

Tags: #clang, #llvm

Differential Revision: https://reviews.llvm.org/D62138

llvm-svn: 361343

5 years ago[X86] [CET] Deal with return-twice function such as vfork, setjmp when
Pengfei Wang [Wed, 22 May 2019 00:50:21 +0000 (00:50 +0000)]
[X86] [CET] Deal with return-twice function such as vfork, setjmp when
CET-IBT enabled

Return-twice functions will indirectly jump after the caller's position.
So when CET-IBT is enable, we should make sure these is endbr*
instructions follow these Return-twice function caller. Like GCC does.

Patch by Xiang Zhang (xiangzhangllvm)

Differential Revision: https://reviews.llvm.org/D61881

llvm-svn: 361342

5 years ago[Docs] fix formatting for bullet list; NFC
Sanjay Patel [Wed, 22 May 2019 00:48:47 +0000 (00:48 +0000)]
[Docs] fix formatting for bullet list; NFC

llvm-svn: 361341

5 years ago[Analysis] Link library dependencies to Analysis plugins
Petr Hosek [Wed, 22 May 2019 00:47:37 +0000 (00:47 +0000)]
[Analysis] Link library dependencies to Analysis plugins

These are needed to avoid undefined symbols which aren't satisfied
by Clang itself.

Differential Revision: https://reviews.llvm.org/D62174

llvm-svn: 361340

5 years ago[libFuzzer] Sleep after process exits in merge-sigusr.test.
Matt Morehouse [Wed, 22 May 2019 00:41:54 +0000 (00:41 +0000)]
[libFuzzer] Sleep after process exits in merge-sigusr.test.

Ensure that log file has been fully updated before trying to read it.

llvm-svn: 361339

5 years ago[InstCombine] fold shuffles of insert_subvectors
Sanjay Patel [Wed, 22 May 2019 00:32:25 +0000 (00:32 +0000)]
[InstCombine] fold shuffles of insert_subvectors

This should be a valid exception to the general rule of not creating new shuffle masks in IR...
because we already do it. :)
Also, DAG combining/legalization will undo this by widening the shuffle back out if needed.

Explanation for how we already do this: SLP or vector source can create chains of insert/extract
as shown in 1 of the examples from PR16739:
https://godbolt.org/z/NlK7rA
https://bugs.llvm.org/show_bug.cgi?id=16739

And we expect instcombine or DAGCombine to clean that up by creating relatively simple shuffles.

Differential Revision: https://reviews.llvm.org/D62024

llvm-svn: 361338

5 years ago[Symbol] Remove dead code
Alex Langford [Wed, 22 May 2019 00:06:44 +0000 (00:06 +0000)]
[Symbol] Remove dead code

llvm-svn: 361337

5 years ago[libFuzzer] Kill by session ID in merge-sigusr.test.
Matt Morehouse [Tue, 21 May 2019 23:54:39 +0000 (23:54 +0000)]
[libFuzzer] Kill by session ID in merge-sigusr.test.

Ensures that parent and all child processes are killed at once.

llvm-svn: 361336

5 years ago[PragmaHandler] Expose `#pragma` location
Joel E. Denny [Tue, 21 May 2019 23:51:38 +0000 (23:51 +0000)]
[PragmaHandler] Expose `#pragma` location

Currently, a pragma AST node's recorded location starts at the
namespace token (such as `omp` in the case of OpenMP) after the
`#pragma` token, and the `#pragma` location isn't available.  However,
the `#pragma` location can be useful when, for example, rewriting a
directive using Clang's Rewrite facility.

This patch makes `#pragma` locations available in any `PragmaHandler`
but it doesn't yet make use of them.

This patch also uses the new `struct PragmaIntroducer` to simplify
`Preprocessor::HandlePragmaDirective`.  It doesn't do the same for
`PPCallbacks::PragmaDirective` because that changes the API documented
in `clang-tools-extra/docs/pp-trace.rst`, and I'm not sure about
backward compatibility guarantees there.

Reviewed By: ABataev, lebedev.ri, aaron.ballman

Differential Revision: https://reviews.llvm.org/D61643

llvm-svn: 361335

5 years agoFix target property to make BUILD_SHARED_LIBS work
Chris Bieneman [Tue, 21 May 2019 23:50:15 +0000 (23:50 +0000)]
Fix target property to make BUILD_SHARED_LIBS work

Public and Private link libraries get merged in the LINK_LIBRARIES property instead of being kept separate.

With any luck this will get `BUILD_SHARED_LIBS` working again on Linux.

llvm-svn: 361334

5 years agoAMDGPU: Assume calls read exec
Matt Arsenault [Tue, 21 May 2019 23:23:16 +0000 (23:23 +0000)]
AMDGPU: Assume calls read exec

llvm-svn: 361333

5 years agoAMDGPU: Add some tests for inlineasm behavior
Matt Arsenault [Tue, 21 May 2019 23:23:12 +0000 (23:23 +0000)]
AMDGPU: Add some tests for inlineasm behavior

llvm-svn: 361332

5 years agoAMDGPU: Assume call pseudos are convergent
Matt Arsenault [Tue, 21 May 2019 23:23:10 +0000 (23:23 +0000)]
AMDGPU: Assume call pseudos are convergent

There should probably be nonconvergent versions, but my guess is it
doesn't matter in practice.

llvm-svn: 361331

5 years agoAMDGPU: Fix not marking new gfx10 SGPRs as CSRs
Matt Arsenault [Tue, 21 May 2019 23:23:05 +0000 (23:23 +0000)]
AMDGPU: Fix not marking new gfx10 SGPRs as CSRs

llvm-svn: 361330

5 years ago[c++20] P1330R0: permit simple-assignments that change the active member
Richard Smith [Tue, 21 May 2019 23:15:20 +0000 (23:15 +0000)]
[c++20] P1330R0: permit simple-assignments that change the active member
of a union within constant expression evaluation.

llvm-svn: 361329

5 years agoRefactor: split Uninitialized state on APValue into an "Absent" state
Richard Smith [Tue, 21 May 2019 23:15:18 +0000 (23:15 +0000)]
Refactor: split Uninitialized state on APValue into an "Absent" state
representing no such object, and an "Indeterminate" state representing
an uninitialized object. The latter is not yet used, but soon will be.

llvm-svn: 361328

5 years ago[WebAssembly] Add the signature for the new llround builtin function
Dan Gohman [Tue, 21 May 2019 23:06:34 +0000 (23:06 +0000)]
[WebAssembly] Add the signature for the new llround builtin function

r360889 added new llround builtin functions. This patch adds their
signatures for the WebAssembly backend.

It also adds wasm32 support to utils/update_llc_test_checks.py, since
that's the script other targets are using for their testcases for this
feature.

Differential Revision: https://reviews.llvm.org/D62207

llvm-svn: 361327

5 years ago[libFuzzer] Ignore exit status of wait in merge-sigusr.test.
Matt Morehouse [Tue, 21 May 2019 22:48:40 +0000 (22:48 +0000)]
[libFuzzer] Ignore exit status of wait in merge-sigusr.test.

If process $PID has already exited, wait will give a non-zero exit
status.

llvm-svn: 361326

5 years agoRename identifiers to spell out analyze; NFC.
Aaron Ballman [Tue, 21 May 2019 22:43:48 +0000 (22:43 +0000)]
Rename identifiers to spell out analyze; NFC.

llvm-svn: 361325

5 years ago[ORC] Guarantee unique JITDylib names in lli, add usage notes to createJITDylib.
Lang Hames [Tue, 21 May 2019 22:07:53 +0000 (22:07 +0000)]
[ORC] Guarantee unique JITDylib names in lli, add usage notes to createJITDylib.

JITDylibs should have unique names. This patch adds code to lli to respect this
invariant (by refering to the exist JITDylib if a -jd <name> option is specified
more than once). It also adds usage notes to the doxygen comment for
createJITDylib method in ExecutionSession and LLJIT.

http://llvm.org/PR41937

llvm-svn: 361322

5 years ago[FileSystem] Fix regression in FileSystem::Resolve
Jonas Devlieghere [Tue, 21 May 2019 21:56:37 +0000 (21:56 +0000)]
[FileSystem] Fix regression in FileSystem::Resolve

When I moved the resolve code from FileSpec to the FileSystem class, I
introduced a regression. If you compare the two implementations, you'll
notice that if the path doesn't exist, we should only reverse the
effects of makeAbsolute, not the effects of tilde expansion.

As a result, the logic to create the ~/.lldb directory broke, because we
would resolve the path before creating it. Because the directory didn't
exist yet, we'd call create_directories on the unresolved path, which
failed.

Differential revision: https://reviews.llvm.org/D62219

llvm-svn: 361321

5 years ago[NFC][AMDGPU] Autogenerate llvm.amdgcn.s.barrier.ll test
Roman Lebedev [Tue, 21 May 2019 21:49:14 +0000 (21:49 +0000)]
[NFC][AMDGPU] Autogenerate llvm.amdgcn.s.barrier.ll test

llvm-svn: 361320

5 years ago[NFC][X86] Autogenerate ragreedy-hoist-spill.ll test
Roman Lebedev [Tue, 21 May 2019 21:49:10 +0000 (21:49 +0000)]
[NFC][X86] Autogenerate ragreedy-hoist-spill.ll test

llvm-svn: 361319

5 years ago[NFC][Thumb2] Autogenerate thumb2-ldr_pre.ll test
Roman Lebedev [Tue, 21 May 2019 21:49:05 +0000 (21:49 +0000)]
[NFC][Thumb2] Autogenerate thumb2-ldr_pre.ll test

llvm-svn: 361318

5 years ago[InstCombine] add more tests for shuffle folding; NFC
Sanjay Patel [Tue, 21 May 2019 21:45:24 +0000 (21:45 +0000)]
[InstCombine] add more tests for shuffle folding; NFC

As discussed in D62024, we want to limit any potential IR
transforms of shuffles to cases where we know the SDAG
conversion would result in equivalent patterns for these
IR variants.

llvm-svn: 361317