Dan Albert [Wed, 7 Feb 2018 21:58:48 +0000 (21:58 +0000)]
Stop using __strtonum_fallback on Android.
Fallback implementations are now provided by bionic when necessary,
which these may conflict with.
llvm-svn: 324534
Craig Topper [Wed, 7 Feb 2018 21:41:50 +0000 (21:41 +0000)]
[X86] When doing callee save/restore for k-registers make sure we don't use KMOVQ on non-BWI targets
If we are saving/restoring k-registers, the default behavior of getMinimalRegisterClass will find the VK64 class with a spill size of 64 bits. This will cause the KMOVQ opcode to be used for save/restore. If we don't have have BWI instructions we need to constrain the class returned to give us VK16 with a 16-bit spill size. We can do this by passing the either v16i1 or v64i1 into getMinimalRegisterClass.
Also add asserts to make sure BWI is enabled anytime we use KMOVD/KMOVQ. These are what caught this bug.
Fixes PR36256
Differential Revision: https://reviews.llvm.org/D42989
llvm-svn: 324533
Marshall Clow [Wed, 7 Feb 2018 21:30:17 +0000 (21:30 +0000)]
Fix PR#31454 - 'basic_string<T>::push_back() crashes if sizeof(T)>sizeof(long long)'. We were mishandling the small-string optimization calculations for very large 'characters'. This may be an ABI change (change the size of) strings of very large 'characters', but since they never worked, I'm not too concerned.
llvm-svn: 324531
Craig Topper [Wed, 7 Feb 2018 21:29:30 +0000 (21:29 +0000)]
[X86] Auto-generate complete checks. NFC
llvm-svn: 324530
Eric Fiselier [Wed, 7 Feb 2018 21:25:25 +0000 (21:25 +0000)]
Fix -verify static assert messages for older Clang versions
llvm-svn: 324529
Ed Maste [Wed, 7 Feb 2018 21:22:20 +0000 (21:22 +0000)]
Document --build-id=fast in ld.lld.1
Initial ld.lld.1 man page commit in r324512 crossed paths with r324502
which added --build-id=fast, allowing --build-id to be documented as a
synonym for --build-id=fast. Catch up with that change in the man page.
Differential Revision: https://reviews.llvm.org/D43039
llvm-svn: 324528
Vedant Kumar [Wed, 7 Feb 2018 21:17:22 +0000 (21:17 +0000)]
[clang-import-test] Run clang-format, NFC
I ran across clang-import-test while looking into testing for lldb.
There shouldn't be any harm in running clang-format over it.
llvm-svn: 324527
Eric Fiselier [Wed, 7 Feb 2018 21:06:13 +0000 (21:06 +0000)]
[libc++] Fix PR35491 - std::array of zero-size doesn't work with non-default constructible types.
Summary:
This patch fixes llvm.org/PR35491 and LWG2157 (https://cplusplus.github.io/LWG/issue2157)
The fix attempts to maintain ABI compatibility by replacing the array with a instance of `aligned_storage`.
Reviewers: mclow.lists, EricWF
Reviewed By: EricWF
Subscribers: lichray, cfe-commits
Differential Revision: https://reviews.llvm.org/D41223
llvm-svn: 324526
Alex Lorenz [Wed, 7 Feb 2018 20:45:39 +0000 (20:45 +0000)]
[PR36008] Avoid -Wsign-compare warning for enum constants in
typeof expressions
This commit looks through typeof type at the original expression when diagnosing
-Wsign-compare to avoid an unfriendly diagnostic.
rdar://
36588828
Differential Revision: https://reviews.llvm.org/D42561
llvm-svn: 324514
Ed Maste [Wed, 7 Feb 2018 20:38:18 +0000 (20:38 +0000)]
Add ld.lld.1 man page, describing lld's ELF linker
One of the FreeBSD requirements for enabling lld as the system linker is
that it has a man page. Other FreeBSD developers and I created one using
lld's --help output as a starting point. This is an expanded and
improved version of that.
This man page would benefit from additional content, but it provides
basic user-facing coverage of lld's options and serves as a good
starting point.
Differential Revision: https://reviews.llvm.org/D42963
llvm-svn: 324512
Momchil Velikov [Wed, 7 Feb 2018 20:28:47 +0000 (20:28 +0000)]
Revert "[DebugInfo] Improvements to representation of enumeration types (PR36168)"
Revert commit r324489, it broke LLDB tests.
llvm-svn: 324511
Alexey Bataev [Wed, 7 Feb 2018 20:11:37 +0000 (20:11 +0000)]
[SLP] Add a tests for PR36280, NFC.
llvm-svn: 324510
Jim Ingham [Wed, 7 Feb 2018 20:09:13 +0000 (20:09 +0000)]
Remove an errant ^S
(still can't get over those Emacs habits...)
llvm-svn: 324509
Momchil Velikov [Wed, 7 Feb 2018 19:57:04 +0000 (19:57 +0000)]
Revert [DebugInfo] Improvements to representation of enumeration types (PR36168)"
Revert due to breaking buildbots (LLDB tests)
llvm-svn: 324508
George Karpenkov [Wed, 7 Feb 2018 19:56:52 +0000 (19:56 +0000)]
[analyzer] [NFC] Factor out generating path diagnostics for a statement into a function
Differential Revision: https://reviews.llvm.org/D42558
llvm-svn: 324507
Rafael Espindola [Wed, 7 Feb 2018 19:44:15 +0000 (19:44 +0000)]
Revert "Recommit r324107."
This reverts commit r324500.
The bots found two failures:
ThreadSanitizer-x86_64 :: Linux/pie_no_aslr.cc
ThreadSanitizer-x86_64 :: pie_test.cc
when using gold. The issue is a limitation in gold when building pie
binaries. I will investigate how to work around it.
llvm-svn: 324505
Zachary Turner [Wed, 7 Feb 2018 19:37:52 +0000 (19:37 +0000)]
Generate PDB files for profiling even in Release build.
This patch enables PDB generation for Release build, which has
slightly different optimize option with RelWithDebInfo on windows.
This helps to know slow part of Release build when profiling.
Patch by Takuto Ikuta
Differential Revision: https://reviews.llvm.org/D42632
llvm-svn: 324504
Marshall Clow [Wed, 7 Feb 2018 19:24:37 +0000 (19:24 +0000)]
Comment on 'Review' issues
llvm-svn: 324503
Rui Ueyama [Wed, 7 Feb 2018 19:22:42 +0000 (19:22 +0000)]
Add --build-id=fast as a synonym for --build-id.
When you omit an argument, most options fall back to their defaults.
For example, --color-diagnostics is a synonym for --color-diagnostics=auto.
We don't have a way to specify the default choice for --build-id, so we
can't describe --build-id (without an argument) in that way.
This patch adds "fast" for the default build-id choice.
Differential Revision: https://reviews.llvm.org/D43032
llvm-svn: 324502
Eric Fiselier [Wed, 7 Feb 2018 19:17:03 +0000 (19:17 +0000)]
Fix r324498: the commit removed the '-' before the disable-llvm-verifier flag
llvm-svn: 324501
Rafael Espindola [Wed, 7 Feb 2018 19:16:49 +0000 (19:16 +0000)]
Recommit r324107.
It now includes a fix to not mark available_externally definitions as
dso_local.
Original message:
Start setting dso_local in clang.
This starts adding dso_local to clang.
The hope is to eventually have TargetMachine::shouldAssumeDsoLocal go
away. My objective for now is to move enough of it to clang to remove
the need for the TargetMachine one to handle PIE copy relocations and
-fno-plt. With that it should then be easy to implement a
-fno-copy-reloc in clang.
This patch just adds the cases where we assume a symbol to be local
based on the file being compiled for an executable or a shared
library.
llvm-svn: 324500
Rafael Espindola [Wed, 7 Feb 2018 19:04:41 +0000 (19:04 +0000)]
Don't pass ForDefinition_t in places it is redundant.
I found this while looking at the ppc failures caused by the dso_local
change.
The issue was that the patch would produce the wrong answer for
available_externally. Having ForDefinition_t available in places where
the code can just check the linkage is a bit of a foot gun.
This patch removes the ForDefiniton_t argument in places where the
linkage is already know.
llvm-svn: 324499
Eric Fiselier [Wed, 7 Feb 2018 18:36:51 +0000 (18:36 +0000)]
[Driver] Add option to manually control discarding value names in LLVM IR.
Summary:
Currently, assertion-disabled Clang builds emit value names when generating LLVM IR. This is controlled by the `NDEBUG` macro, and is not easily overridable. In order to get IR output containing names from a release build of Clang, the user must manually construct the CC1 invocation w/o the `-discard-value-names` option. This is less than ideal.
For example, Godbolt uses a release build of Clang, and so when asked to emit LLVM IR the result lacks names, making it harder to read. Manually invoking CC1 on Compiler Explorer is not feasible.
This patch adds the driver options `-fdiscard-value-names` and `-fno-discard-value-names` which allow the user to override the default behavior. If neither is specified, the old behavior remains.
Reviewers: erichkeane, aaron.ballman, lebedev.ri
Reviewed By: aaron.ballman
Subscribers: bogner, cfe-commits
Differential Revision: https://reviews.llvm.org/D42887
llvm-svn: 324498
Craig Topper [Wed, 7 Feb 2018 18:32:15 +0000 (18:32 +0000)]
[X86] Regenerate test using update_mir_test_checks.py. NFC
llvm-svn: 324497
Yvan Roux [Wed, 7 Feb 2018 18:27:25 +0000 (18:27 +0000)]
[asan] Fix filename size on linux platforms.
This is a a fix for:
https://bugs.llvm.org/show_bug.cgi?id=35996
Use filename limits from system headers to be synchronized with what
LD_PRELOAD can handle.
Differential Revision: https://reviews.llvm.org/D42900
llvm-svn: 324496
Gheorghe-Teodor Bercea [Wed, 7 Feb 2018 18:21:55 +0000 (18:21 +0000)]
[OpenMP][libomptarget] Add data sharing support in libomptarget
Summary: This patch extends the libomptarget functionality in patch D14254 with support for the data sharing scheme for supporting implicitly shared variables. The runtime therefore maintains a list of references to shared variables.
Reviewers: carlo.bertolli, ABataev, Hahnfeld, grokos, caomhin, hfinkel
Reviewed By: Hahnfeld, grokos
Subscribers: guansong, llvm-commits, openmp-commits
Differential Revision: https://reviews.llvm.org/D41485
llvm-svn: 324495
Rafael Espindola [Wed, 7 Feb 2018 18:09:35 +0000 (18:09 +0000)]
Revert "AMDGPU: Add 32-bit constant address space"
This reverts commit r324487.
It broke clang tests.
llvm-svn: 324494
Jonas Devlieghere [Wed, 7 Feb 2018 17:35:27 +0000 (17:35 +0000)]
Revert dsymutil -update commits
Revert "[dsymutil][test] Check the updated dSYM instead of companion file."
Revert "[dsymutil] Upstream update feature."
llvm-svn: 324493
Jonas Devlieghere [Wed, 7 Feb 2018 17:34:46 +0000 (17:34 +0000)]
[test] Don't drop existing categories for methods.
The change in r324488 dropped the existing category attribute in for
instance methods. This patch corrects that.
Differential revision: https://reviews.llvm.org/D43024
llvm-svn: 324492
Nirav Dave [Wed, 7 Feb 2018 17:12:34 +0000 (17:12 +0000)]
[SelectionDAG] More Aggressibly prune nodes in AddChains. NFCI.
Travel all chains paths to first non-tokenfactor node can be
exponential work. Add simple redundency check to avoid this.
Fixes PR36264.
llvm-svn: 324491
Momchil Velikov [Wed, 7 Feb 2018 16:52:02 +0000 (16:52 +0000)]
[DebugInfo] Improvements to representation of enumeration types (PR36168)
This patch:
* fixes an incorrect sign-extension of unsigned values, when emitting
debug info metadata for enumerators
* the enumerators metadata is created with a flag, which determines
interpretation of the value bits (signed or unsigned)
* the enumerations metadata contains the underlying integer type and a
flag, indicating whether this is a C++ "fixed enum"
Differential Revision: https://reviews.llvm.org/D42736
llvm-svn: 324490
Momchil Velikov [Wed, 7 Feb 2018 16:46:33 +0000 (16:46 +0000)]
[DebugInfo] Improvements to representation of enumeration types (PR36168)
This patch is the LLVM part of fixing the issues, described in
https://bugs.llvm.org/show_bug.cgi?id=36168
* The representation of enumerator values in the debug info metadata now
contains a boolean flag isUnsigned, which determines how the bits of
the value are interpreted.
* The DW_TAG_enumeration type DIE now always (for DWARF version >= 3)
includes a DW_AT_type attribute, which refers to the underlying
integer type, as suggested in DWARFv4 (5.7 Enumeration Type Entries).
* The debug info metadata for enumeration type contains (in flags)
indication whether this is a C++11 "fixed enum".
* For C++11 enumeration with a fixed underlying type, the DIE also
includes the DW_AT_enum_class attribute (for DWARF version >= 4).
* Encoding of enumerator constants uses DW_FORM_sdata for signed values
and DW_FORM_udata for unsigned values, as suggested by DWARFv4 (7.5.4
Attribute Encodings).
The changes should be backwards compatible:
* the isUnsigned attribute is optional and defaults to false.
* if the underlying type for the enumeration is not available, the
enumerator values are considered signed.
* the FixedEnum flag defaults to clear.
* the bitcode format for DIEnumerator stores the unsigned flag bit #1 of
the first record element, so the format does not change and the zero
previously stored there is consistent with the false default for
IsUnsigned.
Differential Revision: https://reviews.llvm.org/D42734
llvm-svn: 324489
Jonas Devlieghere [Wed, 7 Feb 2018 16:10:59 +0000 (16:10 +0000)]
[test] Enable setting category for inline tests.
Inlined tests have a test function that is actually an instance method,
which requires a slightly different approach when it comes to setting
the category attribute. The attribute must be set on the actual
function, rather than on a particular instance.
llvm-svn: 324488
Marek Olsak [Wed, 7 Feb 2018 16:01:00 +0000 (16:01 +0000)]
AMDGPU: Add 32-bit constant address space
Note: This is a candidate for LLVM 6.0, because it was planned to be
in that release but was delayed due to a long review period.
Merge conflict in release_60 - resolution:
Add "-p6:32:32" into the second (non-amdgiz) string.
Only scalar loads support 32-bit pointers. An address in a VGPR will
fail to compile. That's OK because the results of loads will only be used
in places where VGPRs are forbidden.
Updated AMDGPUAliasAnalysis and used SReg_64_XEXEC.
The tests cover all uses cases we need for Mesa.
Reviewers: arsenm, nhaehnle
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, t-tye, llvm-commits
Differential Revision: https://reviews.llvm.org/D41651
llvm-svn: 324487
Marek Olsak [Wed, 7 Feb 2018 16:00:40 +0000 (16:00 +0000)]
AMDGPU: Remove the s_buffer workaround for GFX9 chips
Summary:
I checked the AMD closed source compiler and the workaround is only
needed when x3 is emulated as x4, which we don't do in LLVM.
SMEM x3 opcodes don't exist, and instead there is a possibility to use x4
with the last component being unused. If the last component is out of
buffer bounds and falls on the next 4K page, the hw hangs.
Reviewers: arsenm, nhaehnle
Subscribers: kzhuravl, wdng, yaxunl, dstuttard, tpr, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D42756
llvm-svn: 324486
Simon Pilgrim [Wed, 7 Feb 2018 15:48:44 +0000 (15:48 +0000)]
[X86][AVX] Add PACKSSDW/PACKUSDW support for truncation of clamped values
SSE and shorter vector sizes will have to wait until we can add support for general SMIN/SMAX matching.
llvm-svn: 324485
Jonas Devlieghere [Wed, 7 Feb 2018 15:18:21 +0000 (15:18 +0000)]
[dsymutil][test] Check the updated dSYM instead of companion file.
This patch has llvm-dwarfdump check the whole dSYM, rather than the
hard-coded path to the Mach-O companion file. This might be what's
causing the Windows bot to fail.
llvm-svn: 324483
Clement Courbet [Wed, 7 Feb 2018 14:26:43 +0000 (14:26 +0000)]
[SLPVectorizer][NFC] Make a loop more readable.
llvm-svn: 324482
Kamil Rytarowski [Wed, 7 Feb 2018 14:05:57 +0000 (14:05 +0000)]
Correct a bug in GetArgsAndEnv() for NetBSD
Fix setting envp.
llvm-svn: 324481
Jonas Devlieghere [Wed, 7 Feb 2018 13:51:29 +0000 (13:51 +0000)]
[dsymutil] Upstream update feature.
Now that dsymutil can generate accelerator tables, we can upstream the
update logic that, as the name implies, updates the accelerator tables
in an existing dSYM bundle. In combination with `-minimize` this can be
used to remove redundant .debug_(inlines|pubtypes|pubnames).
Differential revision: https://reviews.llvm.org/D42880
llvm-svn: 324480
Simon Pilgrim [Wed, 7 Feb 2018 13:28:23 +0000 (13:28 +0000)]
[X86] Regenerate atomic i32 tests
llvm-svn: 324479
Benjamin Kramer [Wed, 7 Feb 2018 12:55:01 +0000 (12:55 +0000)]
[Orc] Pacify -pedantic.
llvm-svn: 324478
Simon Atanasyan [Wed, 7 Feb 2018 12:36:39 +0000 (12:36 +0000)]
[mips] Support 'y' operand code to print exact log2 of the operand
llvm-svn: 324477
Simon Atanasyan [Wed, 7 Feb 2018 12:36:33 +0000 (12:36 +0000)]
[mips] Handle 'M' and 'L' operand codes for memory operands
Both operand codes now work the same way in case of register or memory
operands. It print high-order or low-order word in a double-word
register or memory location.
llvm-svn: 324476
Eric Liu [Wed, 7 Feb 2018 12:12:06 +0000 (12:12 +0000)]
[clangd] Do not precent-encode numbers in URI.
Reviewers: ilya-biryukov
Subscribers: klimek, jkorous-apple, cfe-commits, sammccall
Differential Revision: https://reviews.llvm.org/D43009
llvm-svn: 324475
Pavel Labath [Wed, 7 Feb 2018 11:19:29 +0000 (11:19 +0000)]
[BinaryFormat] Remove dangling declaration of DiscriminantString
The implementation of the function was deleted in r324426. This also
removes the declaration.
llvm-svn: 324474
Max Kazantsev [Wed, 7 Feb 2018 11:16:29 +0000 (11:16 +0000)]
Re-enable "[SCEV] Make isLoopEntryGuardedByCond a bit smarter"
The failures happened because of assert which was overconfident about
SCEV's proving capabilities and is generally not valid.
Differential Revision: https://reviews.llvm.org/D42835
llvm-svn: 324473
Pavel Labath [Wed, 7 Feb 2018 11:13:21 +0000 (11:13 +0000)]
Remove function DW_DSC_value_to_name
It is unused, and the underlying llvm function has been removed as well.
llvm-svn: 324472
Jacek Olesiak [Wed, 7 Feb 2018 10:35:08 +0000 (10:35 +0000)]
[clang-format] Fix ObjC message arguments formatting.
Summary:
Fixes formatting of ObjC message arguments when inline block is a first
argument.
Having inline block as a first argument when method has multiple parameters is
discouraged by Apple:
"It’s best practice to use only one block argument to a method. If the
method also needs other non-block arguments, the block should come last"
(https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/WorkingwithBlocks/WorkingwithBlocks.html#//apple_ref/doc/uid/TP40011210-CH8-SW7),
it should be correctly formatted nevertheless.
Current formatting:
```
[object blockArgument:^{
a = 42;
}
anotherArg:42];
```
Fixed (colon alignment):
```
[object
blockArgument:^{
a = 42;
}
anotherArg:42];
```
Test Plan: make -j12 FormatTests && tools/clang/unittests/Format/FormatTests
Reviewers: krasimir, benhamilton
Reviewed By: krasimir, benhamilton
Subscribers: benhamilton, klimek, cfe-commits
Differential Revision: https://reviews.llvm.org/D42493
llvm-svn: 324469
Simon Atanasyan [Wed, 7 Feb 2018 10:14:22 +0000 (10:14 +0000)]
[ELF][MIPS] Mark the test as required MIPS target support. NFC
llvm-svn: 324468
Simon Atanasyan [Wed, 7 Feb 2018 10:02:49 +0000 (10:02 +0000)]
[ELF][MIPS] Ignore incorrect version definition index for _gp_disp symbol
MIPS BFD linker puts _gp_disp symbol into DSO files and assigns zero
version definition index to it. This value means 'unversioned local
symbol' while _gp_disp is a section global symbol. We have to handle
this bug in the LLD because BFD linker is used for building MIPS
toolchain libraries.
Differential revision: https://reviews.llvm.org/D42486
llvm-svn: 324467
Clement Courbet [Wed, 7 Feb 2018 09:58:55 +0000 (09:58 +0000)]
[MergeICmps] Re-commit rL324317 "Enable the MergeICmps Pass by default."
With fixes from rL324341.
Original commit message:
[MergeICmps] Enable the MergeICmps Pass by default.
Summary: Now that PR33325 is fixed, this should always improve the generated code.
Reviewers: spatel
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D42793
llvm-svn: 324465
George Rimar [Wed, 7 Feb 2018 09:41:14 +0000 (09:41 +0000)]
[ELF] - Fix BB after r324463.
Test requires arm, but specified x86.
llvm-svn: 324464
George Rimar [Wed, 7 Feb 2018 09:11:07 +0000 (09:11 +0000)]
[ELF] - Remove unused synthetic sections correctly.
This is PR35740 which now crashes
because we remove unused synthetic sections incorrectly.
We can keep input section description and corresponding output
section live even if it must be empty and dead.
This results in a crash because SHF_LINK_ORDER handling code
tries to access first section which is nullptr in this case.
Patch fixes the issue.
Differential revision: https://reviews.llvm.org/D42681
llvm-svn: 324463
Serguei Katkov [Wed, 7 Feb 2018 09:10:08 +0000 (09:10 +0000)]
Revert [SCEV] Make isLoopEntryGuardedByCond a bit smarter
Revert rL324453 commit which causes buildbot failures.
Differential Revision: https://reviews.llvm.org/D42835
llvm-svn: 324462
George Rimar [Wed, 7 Feb 2018 09:00:34 +0000 (09:00 +0000)]
[ELF] - Make defsym to work correctly with reserved symbols.
Previously --defsym=foo2=etext+2 would produce incorrect value
for foo2 because expressions did not work correctly with
reserved symbols, section offset was calculated wrong for them.
Fixes PR35744.
Differential revision: https://reviews.llvm.org/D42911
llvm-svn: 324461
George Rimar [Wed, 7 Feb 2018 08:50:36 +0000 (08:50 +0000)]
[ELF] - Allow set CPU string with -plugin-opt=mcpu=<xxx>
Previously we ignored -plugin-opt=mcpu=<xxx>
and the only way to set CPU string was to pass
-mllvm -mcpu=<xxx>
Though clang may pass it with use of plugin options:
-plugin-opt=mcpu=x86-64
Since we are trying to be compatible in command line
with gold plugin, seems we should support it too.
Differential revision: https://reviews.llvm.org/D42956
llvm-svn: 324459
George Rimar [Wed, 7 Feb 2018 08:46:36 +0000 (08:46 +0000)]
Revert r324455 "[ThinLTO] - Simplify code in ThinLTOBitcodeWriter."
It broke BB:
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/23721
llvm-svn: 324458
George Rimar [Wed, 7 Feb 2018 08:43:19 +0000 (08:43 +0000)]
[ELF] - Add testcase for -debugger-tune=<value>
In D42733 we supported different LTO command line
options, including -debugger-tune=<value>.
Initially debugger-tune support was needed to fix PR36035.
Patch adds testcase for this option to check we
don't simply ignore it.
Differential revision: https://reviews.llvm.org/D42961
llvm-svn: 324457
Sjoerd Meijer [Wed, 7 Feb 2018 08:37:17 +0000 (08:37 +0000)]
[ARM] FP16 mov imm pattern
This is a follow up of r324321, adding a match pattern for mov with a FP16
immediate (also fixing operand vfp_f16imm that wasn't even compiling).
Differential Revision: https://reviews.llvm.org/D42973
llvm-svn: 324456
George Rimar [Wed, 7 Feb 2018 08:32:35 +0000 (08:32 +0000)]
[ThinLTO] - Simplify code in ThinLTOBitcodeWriter.
Recently introduced convertToDeclaration is very similar
to code used in filterModule function.
Patch reuses it to reduce duplication.
Differential revision: https://reviews.llvm.org/D42971
llvm-svn: 324455
Petr Hosek [Wed, 7 Feb 2018 08:22:58 +0000 (08:22 +0000)]
[Fuzzer] Use Zircon's public API on Fuchsia
The original libFuzzer Fuchsia port relied on convenience libraries,
but these are not exported as part of Fuchsia sysroot. This change
eliminates the use of these libraries and relies on public API only.
Differential Revision: https://reviews.llvm.org/D42996
llvm-svn: 324454
Max Kazantsev [Wed, 7 Feb 2018 07:56:26 +0000 (07:56 +0000)]
[SCEV] Make isLoopEntryGuardedByCond a bit smarter
Sometimes `isLoopEntryGuardedByCond` cannot prove predicate `a > b` directly.
But it is a common situation when `a >= b` is known from ranges and `a != b` is
known from a dominating condition. Thia patch teaches SCEV to sum these facts
together and prove strict comparison via non-strict one.
Differential Revision: https://reviews.llvm.org/D42835
llvm-svn: 324453
Michael Zolotukhin [Wed, 7 Feb 2018 06:54:11 +0000 (06:54 +0000)]
The xfailed test from r324448 passed on one of the bots: remove it entirely for now.
llvm-svn: 324451
Serguei Katkov [Wed, 7 Feb 2018 06:53:37 +0000 (06:53 +0000)]
[LoopPrediction] Introduce utility function getLatchPredicateForGuard. NFC.
Factor out getting the predicate for latch condition in a guard to
utility function getLatchPredicateForGuard.
llvm-svn: 324450
Chandler Carruth [Wed, 7 Feb 2018 06:16:24 +0000 (06:16 +0000)]
[x86/retpoline] Make the external thunk names exactly match the names
that happened to end up in GCC.
This is really unfortunate, as the names don't have much rhyme or reason
to them. Originally in the discussions it seemed fine to rely on aliases
to map different names to whatever external thunk code developers wished
to use but there are practical problems with that in the kernel it turns
out. And since we're discovering this practical problems late and since
GCC has already shipped a release with one set of names, we are forced,
yet again, to blindly match what is there.
Somewhat rushing this patch out for the Linux kernel folks to test and
so we can get it patched into our releases.
Differential Revision: https://reviews.llvm.org/D42998
llvm-svn: 324449
Michael Zolotukhin [Wed, 7 Feb 2018 06:11:50 +0000 (06:11 +0000)]
Xfail the test added in r324445 until the underlying issue in LoopSink is fixed.
llvm-svn: 324448
Eugene Leviant [Wed, 7 Feb 2018 05:38:29 +0000 (05:38 +0000)]
[LegalizeDAG] Truncate condition operand of ISD::SELECT
Differential revision: https://reviews.llvm.org/D42737
llvm-svn: 324447
Tom Stellard [Wed, 7 Feb 2018 04:47:59 +0000 (04:47 +0000)]
AMDGPU/GlobalISel: Mark 32-bit G_FPTOUI as legal
Reviewers: arsenm
Reviewed By: arsenm
Subscribers: kzhuravl, wdng, nhaehnle, yaxunl, rovka, kristof.beyls, dstuttard, tpr, llvm-commits, t-tye
Differential Revision: https://reviews.llvm.org/D42152
llvm-svn: 324446
Michael Zolotukhin [Wed, 7 Feb 2018 04:24:44 +0000 (04:24 +0000)]
Follow-up for r324429: "[LCSSAVerification] Run verification only when asserts are enabled."
Before r324429 we essentially didn't have a verification of LCSSA, so
no wonder that it has been broken: currently loop-sink breaks it (the
attached test illustrates the failure).
It was detected during a stage2 RA build, so to unbreak it I'm disabling
the check for now.
llvm-svn: 324445
Teresa Johnson [Wed, 7 Feb 2018 04:05:59 +0000 (04:05 +0000)]
[ThinLTO] Serialize WithGlobalValueDeadStripping index flag for distributed backends
Summary:
A recent fix to drop dead symbols (r323633) did not work for ThinLTO
distributed backends because we lose the WithGlobalValueDeadStripping
set on the index during the thin link. This patch adds a new flags
record to the bitcode format for the index, and serializes this flag
for the combined index (it would always be 0 for the per-module index
generated by the compile step, so no need to serialize the new flags
record there until/unless we add another flag that applies to the
per-module indexes).
Generally this flag should always be set for the distributed backends,
which are necessarily performed after the thin link. However, if we were
to simply set this flag on the index applied to the distributed backends
(invoked via clang), we would lose the ability to disable dead stripping
via -compute-dead=false for debugging purposes.
Reviewers: grimar, pcc
Subscribers: mehdi_amini, inglorion, eraman, llvm-commits
Differential Revision: https://reviews.llvm.org/D42799
llvm-svn: 324444
Sam Clegg [Wed, 7 Feb 2018 03:04:53 +0000 (03:04 +0000)]
[WebAssembly] Add __data_end link-sythentic symbol.
This is similar to _end (See https://linux.die.net/man/3/edata for more)
but using our own unique name since our use cases will most likely be
different and we want to keep our options open WRT to memory layout.
This change will allow is to remove the DataSize from the linking
metadata section which is currently being used by emscripten to derive
the end of the data.
Differential Revision: https://reviews.llvm.org/D42867
llvm-svn: 324443
Volkan Keles [Wed, 7 Feb 2018 02:44:51 +0000 (02:44 +0000)]
GlobalISel: Always check operand types when executing match table
Summary:
Some of the commands tries to get the register without checking
if the specified operands is a register and causing crash. All commands
should check the type of the operand first and reject if the type is
not expected.
Reviewers: dsanders, qcolombet
Reviewed By: qcolombet
Subscribers: qcolombet, rovka, kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D42984
llvm-svn: 324442
Saleem Abdulrasool [Wed, 7 Feb 2018 02:27:34 +0000 (02:27 +0000)]
test: use target triple for the test
Now that `pragma comment` is also used on ELF-ish targets with a
restricted set of options, we need to specify the full target here for
the test.
llvm-svn: 324441
Mark Searles [Wed, 7 Feb 2018 02:21:21 +0000 (02:21 +0000)]
[AMDGPU] Suppress redundant waitcnt instrs.
1. Run the memory legalizer prior to the waitcnt pass; keep the policy that the waitcnt pass does not remove any waitcnts within the incoming IR.
2. The waitcnt pass doesn't (yet) track waitcnts that exist prior to the waitcnt pass (it just skips over them); because the waitcnt pass is ignorant of them, it may insert a redundant waitcnt. To avoid this, check the prev instr. If it and the to-be-inserted waitcnt are the same, suppress the insertion. We keep the existing waitcnt under the assumption that whomever, e.g., the memory legalizer, inserted it knows what they were doing.
3. Follow-on work: teach the waitcnt pass to record the pre-existing waitcnts for better waitcnt production.
Differential Revision: https://reviews.llvm.org/D42854
llvm-svn: 324440
Saleem Abdulrasool [Wed, 7 Feb 2018 01:55:08 +0000 (01:55 +0000)]
AST: support SwiftCC on MS ABI
Microsoft has reserved the identifier 'S' as the swift calling
convention. Decorate the symbols appropriately. This enables swift on
Windows.
llvm-svn: 324439
Saleem Abdulrasool [Wed, 7 Feb 2018 01:46:46 +0000 (01:46 +0000)]
Support `#pragma comment(lib, "name")` in the frontend for ELF
This adds the frontend support required to support the use of the
comment pragma to enable auto linking on ELFish targets. This is a
generic ELF extension supported by LLVM. We need to change the handling
for the "dependentlib" in order to accommodate the previously discussed
encoding for the dependent library descriptor. Without the custom
handling of the PCK_Lib directive, the -l prefixed option would be
encoded into the resulting object (which is treated as a frontend
error).
llvm-svn: 324438
Jason Molenda [Wed, 7 Feb 2018 01:28:29 +0000 (01:28 +0000)]
lldb running on an ios device is using the _dyld_get_all_image_infos()
SPI call to to find its own shared cache's UUID. On newer sytems we
need to use the a new SPI which will return the UUID directly.
<rdar://problem/
36625871>
llvm-svn: 324437
Craig Topper [Wed, 7 Feb 2018 00:51:37 +0000 (00:51 +0000)]
[Mips][AMDGPU] Update test cases to not use vector lt/gt compares that can be simplified to an equality/inequality or to always true/false.
For example 'ugt X, 0' can be simplified to 'ne X, 0'. Or 'uge X, 0' is always true.
We already simplify this for scalars in SimplifySetCC, but we don't currently for vectors in SimplifySetCC. D42948 proposes to change that.
llvm-svn: 324436
Dmitry Mikulin [Wed, 7 Feb 2018 00:49:51 +0000 (00:49 +0000)]
Don't set dso_local flag in LTO resolutions for absolute symbols defined in ELF
objects, it confuses codegen into generating pc-rel relocations for those
symbols, which leads to linker errors.
Differential Revision: https://reviews.llvm.org/D42977
llvm-svn: 324435
Rui Ueyama [Wed, 7 Feb 2018 00:41:34 +0000 (00:41 +0000)]
Make sure that --no-check-sections doesn't print out warning messages.
Differential Revision: https://reviews.llvm.org/D42988
llvm-svn: 324434
Erich Keane [Wed, 7 Feb 2018 00:37:19 +0000 (00:37 +0000)]
[NFC] Change odd cast-through-unknown behavior to an Optional
This bit of code in the driver uses '~0U' as a sentinel value.
The result is an odd mishmash of casts just to work. This replaces
it with an optional, which is a little less crazy looking.
--ehis line, and those below, will be ignored--
M lib/Driver/Driver.cpp
llvm-svn: 324433
Julie Hockett [Wed, 7 Feb 2018 00:33:50 +0000 (00:33 +0000)]
[clang-tidy] Update fuchsia-multiple-inheritance to check for templates
Updating fuchsia-multiple-inheritance to not crash when a record
inherits a template.
Fixes PR36052.
Differential Revision: https://reviews.llvm.org/D42918
llvm-svn: 324432
Matt Arsenault [Wed, 7 Feb 2018 00:21:34 +0000 (00:21 +0000)]
AMDGPU: Select BFI patterns with 64-bit ints
llvm-svn: 324431
Erich Keane [Wed, 7 Feb 2018 00:19:58 +0000 (00:19 +0000)]
[NFC] Correct a typo'ed comment and reworded, since it is awkward.
llvm-svn: 324430
Michael Zolotukhin [Wed, 7 Feb 2018 00:13:08 +0000 (00:13 +0000)]
[LCSSAVerification] Run verification only when asserts are enabled.
llvm-svn: 324429
Rafael Espindola [Wed, 7 Feb 2018 00:13:01 +0000 (00:13 +0000)]
Simplify libtool compatibility hack.
I tested that if I remove "elf" from the message, building a program
that uses libtool prints
checking whether to build shared libraries... no
but with this patch it still prints
checking whether to build shared libraries... yes
llvm-svn: 324428
Craig Topper [Tue, 6 Feb 2018 23:54:37 +0000 (23:54 +0000)]
[DAGCombiner][AMDGPU][X86] Turn cttz/ctlz into cttz_zero_undef/ctlz_zero_undef if we can prove the input is never zero
X86 currently has a late DAG combine after cttz/ctlz are turned into BSR+BSF+CMOV to detect this and remove the CMOV. But we should be able to do this much earlier and avoid creating the cmov all together.
For the changed AMDGPU test case it appears that previously the i8 cttz was type legalized to i16 which introduced an OR with 256 in order to limit the result to 8 on the widened type. At this point the result is known to never be zero, but nothing checked that. Then operation legalization is told to promote all i16 cttz to i32. This introduces an extend and a truncate and another OR with 65536 to limit the result to 16. With the DAG combiner change we are able to prevent the creation of the second OR since the opcode will have been changed to cttz_zero_undef after the first OR. I the lack of the OR caused the instruction to change to v_ffbl_b32_sdwa
Differential Revision: https://reviews.llvm.org/D42985
llvm-svn: 324427
Adrian Prantl [Tue, 6 Feb 2018 23:45:59 +0000 (23:45 +0000)]
Add DWARF for discriminated unions
n Rust, an enum that carries data in the variants is, essentially, a
discriminated union. Furthermore, the Rust compiler will perform
space optimizations on such enums in some situations. Previously,
DWARF for these constructs was emitted using a hack (a magic field
name); but this approach stopped working when more space optimizations
were added in https://github.com/rust-lang/rust/pull/45225.
This patch changes LLVM to allow discriminated unions to be
represented in DWARF. It adds createDiscriminatedUnionType and
createDiscriminatedMemberType to DIBuilder and then arranges for this
to be emitted using DWARF's DW_TAG_variant_part and DW_TAG_variant.
Note that DWARF requires that a discriminated union be represented as
a structure with a variant part. However, as Rust only needs to emit
pure discriminated unions, this is what I chose to expose on
DIBuilder.
Patch by Tom Tromey!
Differential Revision: https://reviews.llvm.org/D42082
llvm-svn: 324426
Akira Hatanaka [Tue, 6 Feb 2018 23:44:40 +0000 (23:44 +0000)]
[Sema][ObjC] Use SmallSetVector to fix a failing test on the reverse
iteration bot.
This commit reverts r315639, which was causing clang to print
diagnostics that weren't printed before. Instead, it declares
OverrideSearch::Overridden as a SmallSetVector to fix the
non-deterministic behavior r315639 was trying to fix.
rdar://problem/
36445528
llvm-svn: 324425
Eli Friedman [Tue, 6 Feb 2018 23:22:14 +0000 (23:22 +0000)]
Place undefined globals in .bss instead of .data
Following up on the discussion from
http://lists.llvm.org/pipermail/llvm-dev/2017-April/112305.html, undef
values are now placed in the .bss as well as null values. This prevents
undef global values taking up potentially huge amounts of space in the
.data section.
The following two lines now both generate equivalent .bss data:
@vals1 = internal unnamed_addr global [
20000000 x i32] zeroinitializer, align 4
@vals2 = internal unnamed_addr global [
20000000 x i32] undef, align 4 ; previously unaccounted for
This is primarily motivated by the corresponding issue in the Rust
compiler (https://github.com/rust-lang/rust/issues/41315).
Differential Revision: https://reviews.llvm.org/D41705
Patch by varkor!
llvm-svn: 324424
Marshall Clow [Tue, 6 Feb 2018 23:13:48 +0000 (23:13 +0000)]
Remove more of the std::experimental bits that are now in std::. All the _v type aliases, conjunction/disjunction, apply, etc. See https://libcxx.llvm.org/TS_deprecation.html
llvm-svn: 324423
Eli Friedman [Tue, 6 Feb 2018 23:00:17 +0000 (23:00 +0000)]
[LivePhysRegs] Fix handling of return instructions.
See D42509 for the original version of this.
Basically, there are two significant changes to behavior here:
- addLiveOuts always adds all pristine registers (even if a block has
no successors).
- addLiveOuts and addLiveOutsNoPristines always add all callee-saved
registers for return blocks (including conditional return blocks).
I cleaned up the functions a bit to make it clear these properties hold.
Differential Revision: https://reviews.llvm.org/D42655
llvm-svn: 324422
Rafael Espindola [Tue, 6 Feb 2018 22:59:24 +0000 (22:59 +0000)]
Convert a use of Config->Static.
In lld this was the only use of Config->Static where it meant anything
else other than "use .a instead of .so".
If a program turns out to not use any dynamic libraries, we should
produce the same result with and without -static.
llvm-svn: 324421
Walter Lee [Tue, 6 Feb 2018 22:39:47 +0000 (22:39 +0000)]
[Myriad] Define __ma2x5x and __ma2x8x
Summary: Add architecture defines for ma2x5x and ma2x8x.
Reviewers: jyknight
Subscribers: fedor.sergeev, MartinO
Differential Revision: https://reviews.llvm.org/D42882
llvm-svn: 324420
Volodymyr Sapsai [Tue, 6 Feb 2018 22:39:25 +0000 (22:39 +0000)]
[Lex] Fix handling numerical literals ending with ' and signed exponent.
For input `0'e+1` lexer tokenized as numeric constant only `0'e`. Later
NumericLiteralParser skipped 0 and ' as digits and parsed `e+1` as valid
exponent going past the end of the token. Because it didn't mark numeric
literal as having an error, it continued parsing and tried to expandUCNs
with StringRef of length -2.
The fix is not to parse exponent when we reached the end of token.
Discovered by OSS-Fuzz:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=4588
rdar://problem/
36076719
Reviewers: rsmith, t.p.northover
Reviewed By: rsmith
Subscribers: cfe-commits, jkorous-apple
Differential Revision: https://reviews.llvm.org/D41834
llvm-svn: 324419
Rafael Espindola [Tue, 6 Feb 2018 22:37:05 +0000 (22:37 +0000)]
Store just argv[0] in Config.
Having the full argv there seems in conflict with the desire to parse
all command line options in the Driver.
llvm-svn: 324418
Evandro Menezes [Tue, 6 Feb 2018 22:35:47 +0000 (22:35 +0000)]
[AArch64] Adjust the cost model for Exynos M3
Fix the modeling of long division and SIMD conversion from integer and
horizontal minimum and maximum.
llvm-svn: 324417
Andrew Kaylor [Tue, 6 Feb 2018 22:28:15 +0000 (22:28 +0000)]
Add SelectionDAGDumper support for strict FP nodes
Patch by Kevin P. Neal
llvm-svn: 324416
Lang Hames [Tue, 6 Feb 2018 22:22:10 +0000 (22:22 +0000)]
Add OrcJIT dependency for Kaleidoscope Chapter 9.
This should fix the error at
http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-expensive/10421
llvm-svn: 324413