platform/upstream/llvm.git
7 years ago[Documentation] Fix Clang-tidy misc-use-after-move and cert-msc50-cpp style and missp...
Eugene Zelenko [Wed, 2 Nov 2016 18:23:52 +0000 (18:23 +0000)]
[Documentation] Fix Clang-tidy misc-use-after-move and cert-msc50-cpp style and misspelling.

llvm-svn: 285848

7 years agoRemove KQueue.cpp
Pavel Labath [Wed, 2 Nov 2016 18:06:17 +0000 (18:06 +0000)]
Remove KQueue.cpp

Summary:
This class is unused.

Reviewers: clayborg

Subscribers: mgorny, modocache, lldb-commits

Differential Revision: https://reviews.llvm.org/D26237

llvm-svn: 285847

7 years ago[Hexagon] Remove registers coalesced in expand-condsets from live intervals
Krzysztof Parzyszek [Wed, 2 Nov 2016 17:59:54 +0000 (17:59 +0000)]
[Hexagon] Remove registers coalesced in expand-condsets from live intervals

llvm-svn: 285846

7 years agoAdd support for old versions of MacOS to libunwind. Fixes PR22203. Thanks to Jeremy...
Marshall Clow [Wed, 2 Nov 2016 17:56:05 +0000 (17:56 +0000)]
Add support for old versions of MacOS to libunwind. Fixes PR22203. Thanks to Jeremy for the bug report and the patch.

llvm-svn: 285845

7 years ago[AMDGPU][mc] Improve test of special asm symbols.
Artem Tamazov [Wed, 2 Nov 2016 17:45:58 +0000 (17:45 +0000)]
[AMDGPU][mc] Improve test of special asm symbols.

Test simplified. Coverage extended.

Differential Revision: https://reviews.llvm.org/D26198

llvm-svn: 285844

7 years agoFix crash in PseudoTerminal on Windows.
Zachary Turner [Wed, 2 Nov 2016 17:42:12 +0000 (17:42 +0000)]
Fix crash in PseudoTerminal on Windows.

Patch by Rudy Pons
Differential Revision: https://reviews.llvm.org/D25681

llvm-svn: 285843

7 years ago[clang-tidy] Extend misc-use-after-move to support unique_ptr and shared_ptr.
Martin Bohme [Wed, 2 Nov 2016 17:34:47 +0000 (17:34 +0000)]
[clang-tidy] Extend misc-use-after-move to support unique_ptr and shared_ptr.

Summary:
As a unique_ptr or shared_ptr that has been moved from is guaranteed to be null,
we only warn if the pointer is dereferenced.

Reviewers: hokein, alexfh, aaron.ballman

Subscribers: Prazek, cfe-commits

Differential Revision: https://reviews.llvm.org/D26041

llvm-svn: 285842

7 years ago[lli/COFF] Set the correct alignment for common symbols
Davide Italiano [Wed, 2 Nov 2016 17:32:19 +0000 (17:32 +0000)]
[lli/COFF] Set the correct alignment for common symbols

Otherwise we set it always to zero, which is not correct,
and we assert inside alignTo (Assertion failed:
Align != 0u && "Align can't be 0.").

Differential Revision:  https://reviews.llvm.org/D26173

llvm-svn: 285841

7 years agoAMDGPU: Cleanup some xfailed tests
Matt Arsenault [Wed, 2 Nov 2016 17:24:54 +0000 (17:24 +0000)]
AMDGPU: Cleanup some xfailed tests

Some of these are already fixed or tested somewhere else.

llvm-svn: 285840

7 years ago[CMake] Support LLDB_TEST_CLANG in check-lldb target(s)
Chris Bieneman [Wed, 2 Nov 2016 17:19:26 +0000 (17:19 +0000)]
[CMake] Support LLDB_TEST_CLANG in check-lldb target(s)

This just hooks up the in-tree compiler to be optionally used when running the test suite.

llvm-svn: 285839

7 years agoFind clang resource directory via *nix-style lookup
Chris Bieneman [Wed, 2 Nov 2016 17:19:23 +0000 (17:19 +0000)]
Find clang resource directory via *nix-style lookup

Summary:
This patch allows the Darwin build to fall back to to Posix-style lookups for the clang resource directory if the debugger library isn't inside a framework.

The patch also includes a bit of refactoring and cleanup around the *nix resolution of the binary and lib directories to reuse the code instead of duplicating it.

With this patch Darwin builds that don't build a framework only have 3 failing tests on my system (TestExec.py).

Reviewers: zturner, labath, spyffe, tfiala

Subscribers: lldb-commits

Differential Revision: https://reviews.llvm.org/D26170

llvm-svn: 285838

7 years agoFix build due to missing definition.
Zachary Turner [Wed, 2 Nov 2016 17:10:55 +0000 (17:10 +0000)]
Fix build due to missing definition.

llvm-svn: 285837

7 years agoAdd CodeViewRecordIO for reading and writing.
Zachary Turner [Wed, 2 Nov 2016 17:05:19 +0000 (17:05 +0000)]
Add CodeViewRecordIO for reading and writing.

Using a pattern similar to that of YamlIO, this allows
us to have a single codepath for translating codeview
records to and from serialized byte streams.  The
current patch only hooks this up to the reading of
CodeView type records.  A subsequent patch will hook
it up for writing of CodeView type records, and then a
third patch will hook up the reading and writing of
CodeView symbols.

Differential Revision: https://reviews.llvm.org/D26040

llvm-svn: 285836

7 years agoAMDGPU: Allow additional implicit operands on MOVRELS instructions
Nicolai Haehnle [Wed, 2 Nov 2016 17:03:11 +0000 (17:03 +0000)]
AMDGPU: Allow additional implicit operands on MOVRELS instructions

Summary:
The post-RA scheduler occasionally uses additional implicit operands when
the vector implicit operand as a whole is killed, but some subregisters
are still live because they are directly referenced later. Unfortunately,
this seems incredibly subtle to reproduce.

Fixes piglit spec/glsl-110/execution/variable-indexing/vs-temp-array-mat2-index-wr.shader_test
and others.

Reviewers: arsenm, tstellarAMD

Subscribers: kzhuravl, wdng, yaxunl, tony-tye, llvm-commits

Differential Revision: https://reviews.llvm.org/D25656

llvm-svn: 285835

7 years agoFix some warnings compiling with clang-cl on Windows.
Zachary Turner [Wed, 2 Nov 2016 16:59:42 +0000 (16:59 +0000)]
Fix some warnings compiling with clang-cl on Windows.

llvm-svn: 285834

7 years agoChange task stealing to always get task from head of victim's deque.
Andrey Churbanov [Wed, 2 Nov 2016 16:45:25 +0000 (16:45 +0000)]
Change task stealing to always get task from head of victim's deque.

Differential Revision: https://reviews.llvm.org/D26187

llvm-svn: 285833

7 years agoFix Clang-tidy readability-redundant-string-cstr warnings
Malcolm Parsons [Wed, 2 Nov 2016 16:43:50 +0000 (16:43 +0000)]
Fix Clang-tidy readability-redundant-string-cstr warnings

Reviewers: beanz, lattner, jlebar

Subscribers: jholewinski, llvm-commits, mehdi_amini

Differential Revision: https://reviews.llvm.org/D26235

llvm-svn: 285832

7 years agoAdd conditions for PPC to libunwind. Fixes PR22200. Thanks to Jeremy for the bug...
Marshall Clow [Wed, 2 Nov 2016 16:39:55 +0000 (16:39 +0000)]
Add conditions for PPC to libunwind. Fixes PR22200. Thanks to Jeremy for the bug report and the patch.

llvm-svn: 285831

7 years ago[ARM][MC] Cleanup ARM Target Assembly Parser
Nirav Dave [Wed, 2 Nov 2016 16:22:51 +0000 (16:22 +0000)]
[ARM][MC] Cleanup ARM Target Assembly Parser

Summary:
Correctly parse end-of-statement tokens and handle preprocessor
end-of-line comments in ARM assembly processor.

Reviewers: rnk, majnemer

Subscribers: aemerson, rengolin, llvm-commits

Differential Revision: https://reviews.llvm.org/D26152

llvm-svn: 285830

7 years agoImprove and cleanup comments in DwarfExpression.h
Adrian Prantl [Wed, 2 Nov 2016 16:20:37 +0000 (16:20 +0000)]
Improve and cleanup comments in DwarfExpression.h

llvm-svn: 285829

7 years agoBranchRelaxation: Fix computing indirect branch block size
Matt Arsenault [Wed, 2 Nov 2016 16:18:29 +0000 (16:18 +0000)]
BranchRelaxation: Fix computing indirect branch block size

llvm-svn: 285828

7 years agoSimplify control flow in the the DWARF expression compiler
Adrian Prantl [Wed, 2 Nov 2016 16:12:20 +0000 (16:12 +0000)]
Simplify control flow in the the DWARF expression compiler
by refactoring common code into a DwarfExpressionCursor wrapper.

llvm-svn: 285827

7 years agoEmit DW_OP_piece also if the previous value was a constant.
Adrian Prantl [Wed, 2 Nov 2016 16:12:16 +0000 (16:12 +0000)]
Emit DW_OP_piece also if the previous value was a constant.
This fixes a bug in the DWARF backend.

llvm-svn: 285826

7 years agoSimplify the test case from r285289.
Alex Lorenz [Wed, 2 Nov 2016 16:11:30 +0000 (16:11 +0000)]
Simplify the test case from r285289.

This commit simplifies and clarifies the test code
that was added in r285289.

Suggested by David Blaikie.

llvm-svn: 285825

7 years ago[ELF] - Allow "-Ttext xxx", "-Tbss xxx", "-Tdata bss" commandline.
George Rimar [Wed, 2 Nov 2016 16:06:00 +0000 (16:06 +0000)]
[ELF] - Allow "-Ttext xxx", "-Tbss xxx", "-Tdata bss" commandline.

So patch just defines an alias for -Txxx=YYY forms,
this is consistent with ld and should fix PR30814.

llvm-svn: 285824

7 years agoAdd a note that points to the linkage specifier for the C++ linkage errors
Alex Lorenz [Wed, 2 Nov 2016 15:46:34 +0000 (15:46 +0000)]
Add a note that points to the linkage specifier for the C++ linkage errors

This commit improves the "must have C++ linkage" error diagnostics that are
emitted for C++ declarations like templates and literal operators by adding an
additional note that points to the appropriate extern "C" linkage specifier.

rdar://19021120

Differential Revision: https://reviews.llvm.org/D26189

llvm-svn: 285823

7 years agoUse !operator to test if APInt is zero/non-zero. NFCI.
Simon Pilgrim [Wed, 2 Nov 2016 15:41:15 +0000 (15:41 +0000)]
Use !operator to test if APInt is zero/non-zero. NFCI.

Avoids APInt construction and slower comparisons.

llvm-svn: 285822

7 years ago[asan] Add more dynamic CRT mode tests
Reid Kleckner [Wed, 2 Nov 2016 15:39:08 +0000 (15:39 +0000)]
[asan] Add more dynamic CRT mode tests

Only tests using %clang_cl_asan were using the dynamic CRT before this.
The unit tests and lit tests using %clangxx_asan were using the static
CRT. Many cross-platform tests fail with the dynamic CRT, so I had to
add win32-(static|dynamic)-asan lit features.

Also deletes some redundant tests in TestCases/Windows that started
failing with this switch.

llvm-svn: 285821

7 years ago[asan] Use the dynamic ASan runtime if -shared-libasan is passed
Reid Kleckner [Wed, 2 Nov 2016 15:38:51 +0000 (15:38 +0000)]
[asan] Use the dynamic ASan runtime if -shared-libasan is passed

-shared-libasan is likely to be used as a link flag if the user is using
the GCC-style clang driver.

This logic is already tested in clang-cl tests, and the new flag to
exercise it will be covered by asan tests.

llvm-svn: 285820

7 years agoSimplify typedefs. NFC.
Rafael Espindola [Wed, 2 Nov 2016 15:33:59 +0000 (15:33 +0000)]
Simplify typedefs. NFC.

llvm-svn: 285819

7 years agoImplement another part of P0031; adding constexpr to move_iterator
Marshall Clow [Wed, 2 Nov 2016 15:30:26 +0000 (15:30 +0000)]
Implement another part of P0031; adding constexpr to move_iterator

llvm-svn: 285818

7 years agoInline a version of getSectionStringTable into the only use.
Rafael Espindola [Wed, 2 Nov 2016 15:23:32 +0000 (15:23 +0000)]
Inline a version of getSectionStringTable into the only use.

llvm-svn: 285817

7 years agoPass the section table to getSectionStringTable. NFC.
Rafael Espindola [Wed, 2 Nov 2016 15:21:24 +0000 (15:21 +0000)]
Pass the section table to getSectionStringTable. NFC.

This will let us simplify the llvm side.

llvm-svn: 285816

7 years agoCompute the section table lazily.
Rafael Espindola [Wed, 2 Nov 2016 15:15:59 +0000 (15:15 +0000)]
Compute the section table lazily.

As a consequence this move a bunch of error checking out of the constructor.

llvm-svn: 285815

7 years ago[mips] Always run the MipsOptimizePICCall pass.
Vasileios Kalintiris [Wed, 2 Nov 2016 15:11:27 +0000 (15:11 +0000)]
[mips] Always run the MipsOptimizePICCall pass.

Summary:
Remove this pass from addMachineSSAOptimization() and register it unconditionally in through addPreRegAlloc(). This pass is required for generating correct PIC calls.

Reviewers: sdardis

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D26036

llvm-svn: 285814

7 years agoCreate the virtual register for the global base in the intersection of
Joerg Sonnenberger [Wed, 2 Nov 2016 15:00:31 +0000 (15:00 +0000)]
Create the virtual register for the global base in the intersection of
GPRC and GPRC_NOR0 (or the 64bit equivalent) and not just the latter.
GPRC_NOR0 contains ZERO as alternative meaning of r0 and is therefore
not a true subclass of GPRC.

llvm-svn: 285813

7 years agoInline getSectionStringTableIndex() into only caller. NFC.
Rafael Espindola [Wed, 2 Nov 2016 14:52:50 +0000 (14:52 +0000)]
Inline getSectionStringTableIndex() into only caller. NFC.

llvm-svn: 285812

7 years agoDon't use getNumSections.
Rafael Espindola [Wed, 2 Nov 2016 14:42:20 +0000 (14:42 +0000)]
Don't use getNumSections.

It is just the size of sections() which we were already calling.

llvm-svn: 285811

7 years agoTurn on the /bigobj switch for RecursiveASTVisitorTest.cpp; we are now bumping up...
Aaron Ballman [Wed, 2 Nov 2016 14:31:36 +0000 (14:31 +0000)]
Turn on the /bigobj switch for RecursiveASTVisitorTest.cpp; we are now bumping up against that limit with MSVC 2015 in Win64 debug build mode.

llvm-svn: 285810

7 years agoAdd a new clang-tidy check for cert-msc50-cpp (and cert-msc30-c) that corresponds...
Aaron Ballman [Wed, 2 Nov 2016 14:16:36 +0000 (14:16 +0000)]
Add a new clang-tidy check for cert-msc50-cpp (and cert-msc30-c) that corresponds to the CERT C++ secure coding rule: https://securecoding.cert.org/confluence/display/cplusplus/MSC50-CPP.+Do+not+use+std%3A%3Arand%28%29+for+generating+pseudorandom+numbers

Patch by Benedek Kiss

llvm-svn: 285809

7 years agoUpdate for llvm change.
Rafael Espindola [Wed, 2 Nov 2016 14:11:05 +0000 (14:11 +0000)]
Update for llvm change.

llvm-svn: 285808

7 years agoAvoid a report_fatal_error in sections().
Rafael Espindola [Wed, 2 Nov 2016 14:10:57 +0000 (14:10 +0000)]
Avoid a report_fatal_error in sections().

Have it return a ErrorOr<Range> and delete section_begin and
section_end.

llvm-svn: 285807

7 years agoRemoving a switch statement that contains a default label, but no case labels. Silenc...
Aaron Ballman [Wed, 2 Nov 2016 13:58:57 +0000 (13:58 +0000)]
Removing a switch statement that contains a default label, but no case labels. Silences an MSVC warning; NFC.

llvm-svn: 285806

7 years agoSimplify SHF_LINK_ORDER handling. NFC.
Rafael Espindola [Wed, 2 Nov 2016 13:36:31 +0000 (13:36 +0000)]
Simplify SHF_LINK_ORDER handling. NFC.

While ARM is the only currently user we support this is a general
feature.

This avoids a second walk over the sections.

llvm-svn: 285805

7 years agogetNumSections should return a uintX_t. NFC.
Rafael Espindola [Wed, 2 Nov 2016 13:07:38 +0000 (13:07 +0000)]
getNumSections should return a uintX_t. NFC.

llvm-svn: 285804

7 years agoSimplify getSection. NFC.
Rafael Espindola [Wed, 2 Nov 2016 12:49:55 +0000 (12:49 +0000)]
Simplify getSection. NFC.

llvm-svn: 285803

7 years agoSimplify.
Joerg Sonnenberger [Wed, 2 Nov 2016 12:45:28 +0000 (12:45 +0000)]
Simplify.

llvm-svn: 285802

7 years agoRemove TimeValue usage from two files
Pavel Labath [Wed, 2 Nov 2016 12:18:42 +0000 (12:18 +0000)]
Remove TimeValue usage from two files

llvm-svn: 285801

7 years ago[SystemZ] Fix compiler warnings introduced by r285574
Ulrich Weigand [Wed, 2 Nov 2016 11:32:28 +0000 (11:32 +0000)]
[SystemZ] Fix compiler warnings introduced by r285574

SystemZAsmParser::parseOperand returns a bool, not an enum.

llvm-svn: 285800

7 years agoFix Clang-tidy readability-redundant-string-cstr warnings
Malcolm Parsons [Wed, 2 Nov 2016 10:39:27 +0000 (10:39 +0000)]
Fix Clang-tidy readability-redundant-string-cstr warnings

Reviewers: aaron.ballman, mehdi_amini, dblaikie

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D26206

llvm-svn: 285799

7 years agoFix printf errors in ProcessMinidump
Pavel Labath [Wed, 2 Nov 2016 10:29:47 +0000 (10:29 +0000)]
Fix printf errors in ProcessMinidump

llvm-svn: 285798

7 years agoRemove TimeValue from UnwindLLDB.cpp
Pavel Labath [Wed, 2 Nov 2016 10:27:54 +0000 (10:27 +0000)]
Remove TimeValue from UnwindLLDB.cpp

Really NFC, as the code is #ifdefed out, but I did make sure it compiles if I enable it.

llvm-svn: 285797

7 years ago[ELF] - Check that .dynsym is present in DSO if SHT_GNU_versym section is.
George Rimar [Wed, 2 Nov 2016 10:16:25 +0000 (10:16 +0000)]
[ELF] - Check that .dynsym is present in DSO if SHT_GNU_versym section is.

When we have SHT_GNU_versym section, it is should be associated with symbol table
section. Usually (and in out implementation) it is .dynsym.
In case when .dynsym is absent (due to broken object for example),
lld crashes in parseVerdefs() when accesses null pointer:

Versym = reinterpret_cast<const Elf_Versym *>(this->ELFObj.base() +
                                              VersymSec->sh_offset) +
         this->Symtab->sh_info;

DIfferential revision: https://reviews.llvm.org/D25553

llvm-svn: 285796

7 years agoRemove TimeValue usages from MacOSX-Kernel process plugin. NFC
Pavel Labath [Wed, 2 Nov 2016 10:13:54 +0000 (10:13 +0000)]
Remove TimeValue usages from MacOSX-Kernel process plugin. NFC

llvm-svn: 285795

7 years ago[llvm] FIx if-clause -Wmisleading-indentation issue.
Kirill Bobyrev [Wed, 2 Nov 2016 10:00:40 +0000 (10:00 +0000)]
[llvm] FIx if-clause -Wmisleading-indentation issue.

While bootstrapping Clang with recent `gcc 6.2.0` I found a bug related to misleading indentation.

I believe, a pair of `{}` was forgotten, especially given the above similar piece of code:

```
      if (!RDef || !HII->isPredicable(*RDef)) {
        Done = coalesceRegisters(RD, RegisterRef(S1));
        if (Done) {
          UpdRegs.insert(RD.Reg);
          UpdRegs.insert(S1.getReg());
        }
      }
```

Reviewers: kparzysz

Differential Revision: https://reviews.llvm.org/D26204

llvm-svn: 285794

7 years ago[Reassociate] Skip analysis of dead code to avoid infinite loop.
Bjorn Pettersson [Wed, 2 Nov 2016 08:55:19 +0000 (08:55 +0000)]
[Reassociate] Skip analysis of dead code to avoid infinite loop.

Summary:
It was detected that the reassociate pass could enter an inifite
loop when analysing dead code. Simply skipping to analyse basic
blocks that are dead avoids such problems (and as a side effect
we avoid spending time on optimising dead code).

The solution is using the same Reverse Post Order ordering of the
basic blocks when doing the optimisations, as when building the
precalculated rank map. A nice side-effect of this solution is
that we now know that we only try to do optimisations for blocks
with ranked instructions.

Fixes https://llvm.org/bugs/show_bug.cgi?id=30818

Reviewers: llvm-commits, davide, eli.friedman, mehdi_amini

Subscribers: dberlin

Differential Revision: https://reviews.llvm.org/D26154

llvm-svn: 285793

7 years agoRemove spurious token from #endif
Roger Ferrer Ibanez [Wed, 2 Nov 2016 08:36:43 +0000 (08:36 +0000)]
Remove spurious token from #endif

llvm-svn: 285792

7 years agoProtect tests for new/delete under libcpp-no-exceptions
Roger Ferrer Ibanez [Wed, 2 Nov 2016 08:14:57 +0000 (08:14 +0000)]
Protect tests for new/delete under libcpp-no-exceptions

Skip the tests that expect an exception be thrown and protect unreachable catch blocks.

Differential Revision: https://reviews.llvm.org/D26197

llvm-svn: 285791

7 years ago[AVR] Add instruction selection lowering code
Dylan McKay [Wed, 2 Nov 2016 06:47:40 +0000 (06:47 +0000)]
[AVR] Add instruction selection lowering code

Summary: This adds AVRISelLowering.cpp

Reviewers: arsenm, kparzysz

Subscribers: llvm-commits, modocache, japaric, wdng, beanz, mgorny

Differential Revision: https://reviews.llvm.org/D25034

llvm-svn: 285790

7 years ago[CMake] Set default build type correctly
Shoaib Meenai [Wed, 2 Nov 2016 06:10:03 +0000 (06:10 +0000)]
[CMake] Set default build type correctly

At least with cmake 3.6.1, the default build type setting was having no
effect; the generated CMakeCache.txt still had an empty CMAKE_BUILD_TYPE.
Force the variable to be set to achieve the desired behavior.

Differential Revision: https://reviews.llvm.org/D26200

llvm-svn: 285789

7 years agoFix GCC test failure caused by manually defining _LIBCPP_HAS_NO_VARIADICS
Eric Fiselier [Wed, 2 Nov 2016 05:08:58 +0000 (05:08 +0000)]
Fix GCC test failure caused by manually defining _LIBCPP_HAS_NO_VARIADICS

llvm-svn: 285788

7 years ago[XRay][x86_64] Define a tail exit trampoline.
Dean Michael Berris [Wed, 2 Nov 2016 04:11:29 +0000 (04:11 +0000)]
[XRay][x86_64] Define a tail exit trampoline.

Summary:
We define a new trampoline that's a hybrid between the exit and entry
trampolines with the following properties:

- Saves all of the callee-saved registers according to the x86_64
  calling conventions.
- Indicate to the log handler function being called that this is a
  function exit event.

This fixes a bug that is a result of not saving enough of the register
states, and that the log handler is clobbering registers that would be
used by the function being tail-exited into manifesting as runtime
errors.

Reviewers: rSerge, echristo, majnemer

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D26020

llvm-svn: 285787

7 years agoFix __libcpp_is_constructible for source types with explicit conversion operators.
Eric Fiselier [Wed, 2 Nov 2016 03:57:34 +0000 (03:57 +0000)]
Fix __libcpp_is_constructible for source types with explicit conversion operators.

Previously __libcpp_is_constructible checked the validity of reference
construction using 'eat<To>(declval<From>())' but this doesn't consider
From's explicit conversion operators. This patch teaches __libcpp_is_constructible
how to handle these cases. To do this we need to check the validity
using 'static_cast<To>(declval<From>())'. Unfortunately static_cast allows
additional base-to-derived and lvalue-to-rvalue conversions, which have to be
checked for and manually rejected.

While implementing these changes I discovered that Clang incorrectly
rejects `static_cast<int&&>(declval<float&>())` even though
`int &&X(declval<float&>())` is well formed. In order to tolerate this bug
the `__eat<T>(...)` needs to be left in-place. Otherwise it could be replaced
entirely with the new static_cast implementation.

Thanks to Walter Brown for providing the test cases.

llvm-svn: 285786

7 years agoBitcode: Fix short read implementation.
Peter Collingbourne [Wed, 2 Nov 2016 02:58:47 +0000 (02:58 +0000)]
Bitcode: Fix short read implementation.

We need to zero extend the byte in order to correctly shift it into a
64-bit value.

llvm-svn: 285785

7 years agoAdd strings to .dynstr early.
Rui Ueyama [Wed, 2 Nov 2016 02:18:01 +0000 (02:18 +0000)]
Add strings to .dynstr early.

Previously, we added strings from DynamicSection::finalize().
It was a bit tricky because finalize() is supposed to fix the final
size of the section, but adding new strings would change the size of
.dynstr section. So there was a dependency between finalize functions
of .dynamic and .dynstr.

However, I noticed that we can elimiante the dependency by simply
add strings early; we don't have to do that in finalize() but can do
from DynamicSection's ctor.

This patch defines a new function, DynamicSection::addEntries, to
add .dynamic entries that doesn't depend on other sections.

llvm-svn: 285784

7 years agoDisable the use of std::call_once on OpenBSD with libstdc++.
Brad Smith [Wed, 2 Nov 2016 01:39:01 +0000 (01:39 +0000)]
Disable the use of std::call_once on OpenBSD with libstdc++.

It was noticed this caused performance regressions and deadlocks. PR30768.

Reorder the code to make it clearer what is tested.

PPC now disables the use of std::call_once only with libstdc++ with
the reordering of the code, as was the original intent.

llvm-svn: 285782

7 years agoFix SBWatchpoint::SetEnabled to send an event.
Jim Ingham [Wed, 2 Nov 2016 01:06:42 +0000 (01:06 +0000)]
Fix SBWatchpoint::SetEnabled to send an event.

We really shouldn't be sending events for SB API's, dunno when we started
doing that.  We don't do it for other things.  But first restore the status quo.

llvm-svn: 285781

7 years ago[ilist_node] Add a getReverseIterator() method and a unittest for it.
Michael Gottesman [Wed, 2 Nov 2016 00:59:58 +0000 (00:59 +0000)]
[ilist_node] Add a getReverseIterator() method and a unittest for it.

This is the reverse_iterator analogue of getIterator().

llvm-svn: 285780

7 years agoMore forcibly resolve exception specifications when checking a function
Richard Smith [Wed, 2 Nov 2016 00:47:52 +0000 (00:47 +0000)]
More forcibly resolve exception specifications when checking a function
redeclaration in C++1z mode. We need the exception specification in order for
the function's type to be complete.

llvm-svn: 285779

7 years ago[Documentation] Clang-tidy readability-redundant-declaration consistency.
Eugene Zelenko [Wed, 2 Nov 2016 00:43:23 +0000 (00:43 +0000)]
[Documentation] Clang-tidy readability-redundant-declaration consistency.

Release notes checks order and consistent Clang-tidy readability-redundant-declaration description.

llvm-svn: 285778

7 years agoBitcode: Check file size before reading bitcode header.
Peter Collingbourne [Wed, 2 Nov 2016 00:39:11 +0000 (00:39 +0000)]
Bitcode: Check file size before reading bitcode header.

Should unbreak ocaml binding tests.

Also added an llvm-dis test that checks for the same thing.

llvm-svn: 285777

7 years agoUse ArrayRef instead of const std::vector.
Rui Ueyama [Wed, 2 Nov 2016 00:29:06 +0000 (00:29 +0000)]
Use ArrayRef instead of const std::vector.

llvm-svn: 285776

7 years agoMake a function in a header "inline" instead of "static".
Rui Ueyama [Wed, 2 Nov 2016 00:16:43 +0000 (00:16 +0000)]
Make a function in a header "inline" instead of "static".

llvm-svn: 285775

7 years agoSupport: Remove MemoryObject and DataStreamer interfaces.
Peter Collingbourne [Wed, 2 Nov 2016 00:08:37 +0000 (00:08 +0000)]
Support: Remove MemoryObject and DataStreamer interfaces.

These interfaces are no longer used.

Differential Revision: https://reviews.llvm.org/D26222

llvm-svn: 285774

7 years agoBitcode: Change reader interface to take memory buffers.
Peter Collingbourne [Wed, 2 Nov 2016 00:08:19 +0000 (00:08 +0000)]
Bitcode: Change reader interface to take memory buffers.

As proposed on llvm-dev:
http://lists.llvm.org/pipermail/llvm-dev/2016-October/106595.html

This change also fixes an API oddity where BitstreamCursor::Read() would
return zero for the first read past the end of the bitstream, but would
report_fatal_error for subsequent reads. Now we always report_fatal_error
for all reads past the end. Updated clients to check for the end of the
bitstream before reading from it.

I also needed to add padding to the invalid bitcode tests in
test/Bitcode/. This is because the streaming interface was not checking that
the file size is a multiple of 4.

Differential Revision: https://reviews.llvm.org/D26219

llvm-svn: 285773

7 years ago[docs] Fix some typos. NFC.
Vedant Kumar [Tue, 1 Nov 2016 23:55:50 +0000 (23:55 +0000)]
[docs] Fix some typos. NFC.

llvm-svn: 285772

7 years ago[RISCV] Add bare-bones RISC-V MCTargetDesc
Alex Bradbury [Tue, 1 Nov 2016 23:47:30 +0000 (23:47 +0000)]
[RISCV] Add bare-bones RISC-V MCTargetDesc

This is enough to compile and link but doesn't yet do anything particularly
useful. Once an ASM parser and printer are added in the next two patches, the
whole thing can be usefully tested.

Differential Revision: https://reviews.llvm.org/D23562

llvm-svn: 285770

7 years ago[RISCV 4/10] Add basic RISCV{InstrFormats,InstrInfo,RegisterInfo,}.td
Alex Bradbury [Tue, 1 Nov 2016 23:40:28 +0000 (23:40 +0000)]
[RISCV 4/10] Add basic RISCV{InstrFormats,InstrInfo,RegisterInfo,}.td

For now, only add instruction definitions for basic ALU operations. Our
initial target is a working MC layer rather than codegen, so appropriate
SelectionDAG patterns will come later.

Differential Revision: https://reviews.llvm.org/D23561

llvm-svn: 285769

7 years agoAMDGPU: Handle CopyToReg in getOperandRegClass
Matt Arsenault [Tue, 1 Nov 2016 23:22:17 +0000 (23:22 +0000)]
AMDGPU: Handle CopyToReg in getOperandRegClass

llvm-svn: 285768

7 years agoInline a variable that is used only once.
Rui Ueyama [Tue, 1 Nov 2016 23:17:47 +0000 (23:17 +0000)]
Inline a variable that is used only once.

llvm-svn: 285767

7 years agoSplit writeResult. NFC.
Rui Ueyama [Tue, 1 Nov 2016 23:17:45 +0000 (23:17 +0000)]
Split writeResult. NFC.

This is now doable because this code doesn't have to be in the
dynamic scope of Writer::run().

llvm-svn: 285766

7 years agoAMDGPU: Use brev for materializing SGPR constants
Matt Arsenault [Tue, 1 Nov 2016 23:14:20 +0000 (23:14 +0000)]
AMDGPU: Use brev for materializing SGPR constants

This is already done with VGPR immediates and saves 4 bytes.

llvm-svn: 285765

7 years agoCreate Out members using make() to simplify.
Rui Ueyama [Tue, 1 Nov 2016 23:12:51 +0000 (23:12 +0000)]
Create Out members using make() to simplify.

llvm-svn: 285764

7 years agoRemove Out::Pool and use make() instead.
Rui Ueyama [Tue, 1 Nov 2016 23:09:07 +0000 (23:09 +0000)]
Remove Out::Pool and use make() instead.

llvm-svn: 285763

7 years agoAMDGPU: Default to using scalar mov to materialize immediate
Matt Arsenault [Tue, 1 Nov 2016 22:55:07 +0000 (22:55 +0000)]
AMDGPU: Default to using scalar mov to materialize immediate

This is the conservatively correct way because it's easy to
move or replace a scalar immediate. This was incorrect in the case
when the register class wasn't known from the static instruction
definition, but still needed to be an SGPR. The main example of this
is inlineasm has an SGPR constraint.

Also start verifying the register classes of inlineasm operands.

llvm-svn: 285762

7 years agoXfail this while I figure out why the event isn't getting sent.
Jim Ingham [Tue, 1 Nov 2016 22:53:54 +0000 (22:53 +0000)]
Xfail this while I figure out why the event isn't getting sent.

llvm-svn: 285761

7 years agoProvide a convenient function to allocate and initialize objects.
Rui Ueyama [Tue, 1 Nov 2016 22:53:18 +0000 (22:53 +0000)]
Provide a convenient function to allocate and initialize objects.

You can now write make<T>(Args) instead of new (alloc<T>()) T(Args).

llvm-svn: 285760

7 years ago[analyzer] Fix capitalization in ObjCSuperDealloc checker diagnostic.
Devin Coughlin [Tue, 1 Nov 2016 22:16:39 +0000 (22:16 +0000)]
[analyzer] Fix capitalization in ObjCSuperDealloc checker diagnostic.

Change "use of 'self'..." to "Use of 'self'...". The convention is to
start diagnostics with a capital letter.

rdar://problem/28322494

llvm-svn: 285759

7 years agoMove the initialization of PreferredLoopExit into runOnMachineFunction to be near...
Eric Christopher [Tue, 1 Nov 2016 22:15:50 +0000 (22:15 +0000)]
Move the initialization of PreferredLoopExit into runOnMachineFunction to be near the other function specific initializations.

llvm-svn: 285758

7 years agoFix uninitialized access in MachineBlockPlacement.
Sam McCall [Tue, 1 Nov 2016 22:02:14 +0000 (22:02 +0000)]
Fix uninitialized access in MachineBlockPlacement.

Summary:
Currently PreferredLoopExit is set only in buildLoopChains, which is
never called if there are no MachineLoops.

MSan is currently broken by this:
http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-fast/builds/145/steps/check-llvm%20msan/logs/stdio

This is a naive fix to get things green again. iteratee: you may have a better fix.

This change will also mean PreferredLoopExit will not carry over if
buildCFGChains() is called a second time in runOnMachineFunction, this
appears to be the right thing.

Reviewers: bkramer, iteratee, echristo

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D26069

llvm-svn: 285757

7 years agoAMDGPU: Stop creating unused virtual registers
Matt Arsenault [Tue, 1 Nov 2016 21:58:07 +0000 (21:58 +0000)]
AMDGPU: Stop creating unused virtual registers

These are only used in the spill to VMEM path. Move them to
the one use.

llvm-svn: 285756

7 years agoDon't fetch the section string table multiple times. NFC.
Rafael Espindola [Tue, 1 Nov 2016 21:48:00 +0000 (21:48 +0000)]
Don't fetch the section string table multiple times. NFC.

llvm-svn: 285755

7 years agoUpdate for llvm change.
Rafael Espindola [Tue, 1 Nov 2016 21:34:26 +0000 (21:34 +0000)]
Update for llvm change.

We no longer use the section names in this test.

llvm-svn: 285754

7 years agoDon't compute DotShstrtab eagerly.
Rafael Espindola [Tue, 1 Nov 2016 21:33:55 +0000 (21:33 +0000)]
Don't compute DotShstrtab eagerly.

This saves a field that is not always used. It also avoids failing a
program that doesn't need the section names.

llvm-svn: 285753

7 years ago[clang-tidy] Handle bitfields in cppcoreguidelines-pro-type-member-init
Malcolm Parsons [Tue, 1 Nov 2016 21:26:53 +0000 (21:26 +0000)]
[clang-tidy] Handle bitfields in cppcoreguidelines-pro-type-member-init

Summary:
Unnamed bitfields cannot be initialized.
Bitfields cannot be in-class initialized.

Reviewers: alexfh, hokein, aaron.ballman

Subscribers: Prazek, nemanjai, cfe-commits

Differential Revision: https://reviews.llvm.org/D26119

llvm-svn: 285752

7 years agoRemove string table offsets from tests.
Rui Ueyama [Tue, 1 Nov 2016 21:26:28 +0000 (21:26 +0000)]
Remove string table offsets from tests.

<N> where "foo (<N>)" is the offset of string "foo" in the string table.

llvm-svn: 285751

7 years ago[MemorySSA] Tighten up types to make our API prettier. NFC.
George Burgess IV [Tue, 1 Nov 2016 21:17:46 +0000 (21:17 +0000)]
[MemorySSA] Tighten up types to make our API prettier. NFC.

Patch by bryant.

Differential Revision: https://reviews.llvm.org/D26126

llvm-svn: 285750

7 years agoAdd missing #include.
Zachary Turner [Tue, 1 Nov 2016 21:08:34 +0000 (21:08 +0000)]
Add missing #include.

llvm-svn: 285749

7 years agoReplace GAlloc with a template function.
Rafael Espindola [Tue, 1 Nov 2016 21:06:40 +0000 (21:06 +0000)]
Replace GAlloc with a template function.

This patch replaces GAlloc<ELFT>::<sometype>.Allocate() with
alloc<sometype<ELFT>>().

Patch by Rui!

llvm-svn: 285748

7 years agoSimplify getStringTableIndex.
Rafael Espindola [Tue, 1 Nov 2016 20:56:15 +0000 (20:56 +0000)]
Simplify getStringTableIndex.

The description in the ELF spec is just

---------------------------
If the section name string table section index is greater than or
equal to SHN_LORESERVE (0xff00), this member has the value SHN_XINDEX
(0xffff) and the actual index of the section name string table section
is contained in the sh_link field of the section header at index 0.
---------------------------

So we only have to check for it being SHN_XINDEX. Also, sh_link is
always 32 bits, so don't return an uintX_t.

llvm-svn: 285747