Commit Graph

265913 Commits

Author SHA1 Message Date
Reid Kleckner 1898045ba5 [MS] Test that deleting destructor thunks are not exported
The MSVC linker emits the LNK4102 warning if they are.

llvm-svn: 306836
2017-06-30 16:12:14 +00:00
Reid Kleckner ec782b70d2 Revert "[CodeGen] Propagate dllexport to thunks"
This reverts r306770, it causes LNK4102 warnings in MSVC builds.

llvm-svn: 306835
2017-06-30 16:11:49 +00:00
Kostya Kortchinsky b138ab810f [sanitizer] Small tweaks and fixes to allocator related functions
Summary:
In `sanitizer_allocator_primary32.h`:
- rounding up in `MapWithCallback` is not needed as `MmapOrDie` does it. Note
  that the 64-bit counterpart doesn't round up, this keeps the behavior
  consistent;
- since `IsAligned` exists, use it in `AllocateRegion`;
- in `PopulateFreeList`:
  - checking `b->Count` to be greater than 0 when `b->Count() == max_count` is
    redundant when done more than once. Just check that `max_count` is greater
    than 0 out of the loop; the compiler (at least on ARM) didn't optimize it;
  - mark the batch creation failure as `UNLIKELY`;

In `sanitizer_allocator_primary64.h`:
- in `MapWithCallback`, mark the failure condition as `UNLIKELY`;

In `sanitizer_posix.h`:
- mark a bunch of Mmap related failure conditions as `UNLIKELY`;
- in `MmapAlignedOrDieOnFatalError`, we have `IsAligned`, so use it; rearrange
  the conditions as one test was redudant;
- in `MmapFixedImpl`, 30 chars was not large enough to hold the message and a
  full 64-bit address (or at least a 48-bit usermode address), increase to 40.

Reviewers: alekseyshl

Reviewed By: alekseyshl

Subscribers: aemerson, kubamracek, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D34840

llvm-svn: 306834
2017-06-30 16:05:40 +00:00
Zachary Turner e9db96e6d9 Revert "[lit] Clean output directories before running tests."
This reverts commit da6318a92fba793e4f2447ec478b001392d57d43.

This is causing failures on some build bots due to what appears
to be some kind of lit ordering dependency.

llvm-svn: 306833
2017-06-30 16:05:03 +00:00
Zachary Turner 0955739b36 [lit] Clean output directories before running tests.
Presently lit leaks files in the tests' output directories.
Specifically, if a test creates output files, lit makes no
effort to remove them prior to the next test run.  This is
problematic because it leads to false positives whenever a
test passes because stale  files were present.  In general
it is a source of flakiness that should be removed.

This patch addresses this by building the list of all test
directories that are part of the current run set, and then
deleting those directories and recreating them anew.  This
gives each test a clean baseline to start from.

Differential Revision: https://reviews.llvm.org/D34732

llvm-svn: 306832
2017-06-30 16:01:30 +00:00
Simon Dardis da96c43682 [MIPS] Handle PIC load address macro instructions in N64.
In particular, use CALL16 (similar to O32) for address loads into T9 for certain
cases.  Otherwise use a %got_disp relocation to load the address of a symbol.
Small offsets (small enough to fit in a 16-bit signed immediate) can be used and
are added to the symbol address after it is loaded from the GOT.  Larger offsets
are currently unsupported and result in an error from the assembler.

Reviewers: sdardis

Reviewed By: sdardis

Patch by: John Baldwin

Subscribers: llvm-commits, seanbruno, arichardson, emaste, dim

Differential Revision: https://reviews.llvm.org/D33948

llvm-svn: 306831
2017-06-30 15:44:27 +00:00
Saleem Abdulrasool b91d119f7a Driver: fix option declaration
The option is a "joined" argument.  Fix silly copy-paste error.  This
allows the parsing to work at runtime.

llvm-svn: 306830
2017-06-30 15:15:39 +00:00
Saleem Abdulrasool a517a0a520 Driver: honor -nostdinc and -isystem-after on CrossWindows
This changes CrossWindows to look for -nostdinc instead of -nostdlibinc.
In addition, fixes a bug where -isystem-after options would be dropped
when called with -nostdinc.

Patch by Dave Lee!

llvm-svn: 306829
2017-06-30 15:15:38 +00:00
Alexey Bataev 8843aab83a [SLP] A test for limiting vectorization of instructions, NFC.
llvm-svn: 306828
2017-06-30 14:37:32 +00:00
Joey Gouly 186791df89 [OpenCL] Add function name to extension diagnostic
Slightly improve the diagnostic by including the function name.

llvm-svn: 306827
2017-06-30 14:23:01 +00:00
Teresa Johnson b247ffbaed [LTO] Remove values from non-prevailing comdats
Summary:
When linking a regular LTO module, if it has any non-prevailing values
(dropped to available_externally) in comdats, we need to do more than
just remove those values from their comdat. We also remove all values
from that comdat, so as to avoid leaving an incomplete comdat.

This is necessary in case we are compiling in mixed regular and ThinLTO
mode, since the resulting regularLTO native object is always linked into
the final binary first. We need to prevent the linker from selecting an
incomplete comdat that was not the prevailing copy.

Fixes PR32980.

Reviewers: pcc, rafael

Subscribers: mehdi_amini, david2050, llvm-commits, inglorion

Differential Revision: https://reviews.llvm.org/D34803

llvm-svn: 306826
2017-06-30 14:03:24 +00:00
Alexey Bataev 7b6097ce73 [OPENMP] Initial support for taskloop reductions.
Add sema/parsupping ort for taskloop [simd] reductions.

llvm-svn: 306825
2017-06-30 13:50:13 +00:00
Simon Pilgrim d1698af8c8 Remove unnecessary commented out argument. NFCI.
llvm-svn: 306824
2017-06-30 13:26:17 +00:00
Benjamin Kramer 582d0c872a Revert "Modify test so that it looks for patterns in stderr as well"
This reverts commit r303735. No longer needed after r306822 sends the
diagnostics to the proper output again.

llvm-svn: 306823
2017-06-30 13:23:24 +00:00
Benjamin Kramer 43c0f486b0 [Driver] Actually report errors during parsing instead of stopping when there's an error somewhere.
This is a more principled version of r303756. That change was both very
brittle about the state of the Diags object going into the driver and
also broke tooling in funny ways.

In particular it prevented tools from capturing diagnostics properly and
made the compilation database logic fail to provide arguments to the
tool, falling back to scanning directories for JSON files.

llvm-svn: 306822
2017-06-30 13:21:27 +00:00
Ulrich Weigand 9932f92882 [SystemZ] Add missing high-word facility instructions
There are a few instructions provided by the high-word facility (z196)
that we cannot easily exploit for code generation.  This patch at least
adds those missing instructions for the assembler and disassembler.

This means that now all nonprivileged instructions up to z13 are
supported by the LLVM assembler / disassembler.

llvm-svn: 306821
2017-06-30 12:56:29 +00:00
Nirav Dave a35938d827 Revert "[DAG] Rewrite areNonVolatileConsecutiveLoads to use BaseIndexOffset"
This reverts commit r306819 which appears be exposing underlying
issues in a stage1 ppc64be build

llvm-svn: 306820
2017-06-30 12:56:02 +00:00
Nirav Dave c5a48c1ee8 [DAG] Rewrite areNonVolatileConsecutiveLoads to use BaseIndexOffset
As discussed in D34087, rewrite areNonVolatileConsecutiveLoads using
generic checks. Also, propagate missing local handling from there to
BaseIndexOffset checks.

Tests of note:

  * test/CodeGen/X86/build-vector* - Improved.
  * test/CodeGen/BPF/undef.ll - Improved store alignment allows an
    additional store merge

  * test/CodeGen/X86/clear_upper_vector_element_bits.ll - This is a
    case we already do not handle well. Here, the DAG is improved, but
    scheduling causes a code size degradation.

Reviewers: RKSimon, craig.topper, spatel, andreadb, filcab

Subscribers: nemanjai, llvm-commits

Differential Revision: https://reviews.llvm.org/D34472

llvm-svn: 306819
2017-06-30 12:23:41 +00:00
NAKAMURA Takumi f0e58816e4 CREDITS.TXT: Update myself.
llvm-svn: 306818
2017-06-30 11:59:53 +00:00
Pavel Labath f1fb38b746 Remove dead Core/StreamFile includes
llvm-svn: 306817
2017-06-30 11:31:13 +00:00
Simon Pilgrim e5e9232260 [X86] Updated 32-bit memcmp tests to run with/without SSE2
llvm-svn: 306816
2017-06-30 11:23:59 +00:00
Nikolai Bozhenov bde9b14c6f Revert of r306525: "Canonicalize clamp of float types to minmax"
llvm-svn: 306815
2017-06-30 10:39:09 +00:00
George Rimar 892c6c86ea [YAML] - Teach yaml2obj/obj2yaml to work with numeric relocation values.
That may be useful if we want to produce or parse object containing
broken relocation values using yaml2obj/obj2yaml.

Previously that was impossible because only enum values were parsed
correctly, this patch allows to put any numeric value as a
relocation type.

Differential revision: https://reviews.llvm.org/D34758

llvm-svn: 306814
2017-06-30 10:31:03 +00:00
George Rimar aad84e2ee2 [ELF] - Resolve references properly when using .symver directive
This is PR28414. 
Previously LLD was unable to link following:
(failed with undefined symbol bar)

```
Version script:
SOME_VERSION { global: *; };

.global _start
.global bar
.symver _start, bar@@SOME_VERSION
_start:
  jmp bar
```

Manual has next description:
//
.symver name, name2@@nodename
In this case, the symbol name must exist and be defined within the file being assembled. It is similar to name2@nodename. 
**The difference is name2@@nodename will also be used to resolve references to name2 by the linker**
https://sourceware.org/binutils/docs/as/Symver.html
//

Patch implements that. If we have name@@ver symbol and name is undefined, 
name@@ver is used to resolve references to name.

Differential revision: https://reviews.llvm.org/D33680

llvm-svn: 306813
2017-06-30 10:19:54 +00:00
George Rimar d8508b0af3 [DWARF] - Simplify HandleExpectedError implementation in DWARFDebugInfoTest
Current implementation looks a bit confusing. It looks like it should
report/print something on error, but it does not do that.
It silently drops a error message when creating triple, though
this behavior is fine generally.

For example if LLVM configured with -DLLVM_TARGETS_TO_BUILD=ARM and
our host is windows, it is expected that we will be unable to
create "i386-pc-windows-msvc" target.

Patch introduces isConfigurationSupported() function that checks
if current configuration is supported for each test and returns early if not.

llvm-svn: 306812
2017-06-30 10:09:01 +00:00
Ilya Biryukov 4709275205 Fixed misplaced table border in the docs.
llvm-svn: 306811
2017-06-30 09:47:17 +00:00
Ilya Biryukov af351dae02 Added Dockerfiles to build clang from sources.
Reviewers: klimek, chandlerc, mehdi_amini

Reviewed By: klimek, mehdi_amini

Subscribers: mehdi_amini, jlebar, llvm-commits

Differential Revision: https://reviews.llvm.org/D34197

llvm-svn: 306810
2017-06-30 09:46:45 +00:00
Vassil Vassilev 99a16aa19e Ambiguity might be also uninitialized. Use llvm::Optional.
llvm-svn: 306809
2017-06-30 09:25:43 +00:00
Hiroshi Inoue a89d4b5f2f fix trivial typos, NFC
llvm-svn: 306808
2017-06-30 09:11:50 +00:00
Hiroshi Inoue 32f2183483 fix trivial typos, NFC
llvm-svn: 306807
2017-06-30 08:28:50 +00:00
Kristof Beyls b539ea5393 [GlobalISel] Make multi-step legalization work.
In r301116, a custom lowering needed to be introduced to be able to
legalize 8 and 16-bit divisions on ARM targets without a division
instruction, since 2-step legalization (WidenScalar from 8 bit to 32
bit, then Libcall the 32-bit division) doesn't work.

This fixes this and makes this kind of multi-step legalization, where
first the size of the type needs to be changed and then some action is
needed that doesn't require changing the size of the type,
straighforward to specify.

Differential Revision: https://reviews.llvm.org/D32529

llvm-svn: 306806
2017-06-30 08:26:20 +00:00
Sjoerd Meijer cb75f61c1d ARMV8-A archkind and target defines helper functions
This introduces helper functions that set target defines for different ARMV8-A
architecture kinds. It fixes an issue that the v8.1 define ARM_FEATURE_QRDMX
was not set for v8.2. These helper functions make things more “scalable” if we
want to add ARMv8.3 at some point, and a cleanup has been done to hold the
architecture kind in one variable (instead of one for each).

Differential Revision: https://reviews.llvm.org/D34686

llvm-svn: 306805
2017-06-30 08:07:34 +00:00
Daniel Jasper d27538a70e Fix heap use after free introduced by r306769.
llvm-svn: 306804
2017-06-30 08:02:37 +00:00
Ayal Zaks 8d26f0a602 [LV] Optimize for size when vectorizing loops with tiny trip count
It may be detrimental to vectorize loops with very small trip count, as various
costs of the vectorized loop body as well as enclosing overheads including
runtime tests and scalar iterations may outweigh the gains of vectorizing. The
current cost model measures the cost of the vectorized loop body only, expecting
it will amortize other costs, and loops with known or expected very small trip
counts are not vectorized at all. This patch allows loops with very small trip
counts to be vectorized, but under OptForSize constraints, which ensure the cost
of the loop body is dominant, having no runtime guards nor scalar iterations.

Patch inspired by D32451.

Differential Revision: https://reviews.llvm.org/D34373

llvm-svn: 306803
2017-06-30 08:02:35 +00:00
Pavel Labath cc78ea6985 Fix a cmake typo to unbreak windows unit tests
llvm-svn: 306802
2017-06-30 07:54:35 +00:00
Craig Topper 97cd0173b9 [InstCombine] Add test cases to demonstrate failure to fold (a | b) ^ (~a | ~b) --> ~(a ^ b) and its commuted variants.
llvm-svn: 306801
2017-06-30 07:37:42 +00:00
Craig Topper 880bf82685 [InstCombine] In foldXorToXor, move the commutable matcher from the LHS match to the RHS match. No meaningful change intended.
There are two conditions ORed here with similar checks and each contain two matches that must be true for the if to succeed. With the commutable match on the first half of the OR then both ifs basically have the same first part and only the second part distinguishs. With this change we move the commutable match to second half and make the first half unique.

This caused some tests to change because we now produce a commuted result, but this shouldn't matter in practice.

llvm-svn: 306800
2017-06-30 07:37:41 +00:00
Stephan Bergmann 7428528cb4 Fold exception-warnings.cpp into warn-throw-out-noexcept-func.cpp
I had failed to notice the latter existed when I recently introduced the former.

llvm-svn: 306799
2017-06-30 07:22:02 +00:00
Hiroshi Inoue c39696441c fix trivial typo; NFC
llvm-svn: 306798
2017-06-30 07:17:53 +00:00
Chandler Carruth 3545a9e1f9 Remove the BBVectorize pass.
It served us well, helped kick-start much of the vectorization efforts
in LLVM, etc. Its time has come and past. Back in 2014:
http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html

Time to actually let go and move forward. =]

I've updated the release notes both about the removal and the
deprecation of the corresponding C API.

llvm-svn: 306797
2017-06-30 07:09:08 +00:00
Martin Storsjo e24f434eb2 Update a test case after LLVM r306794
llvm-svn: 306796
2017-06-30 07:02:59 +00:00
Martin Storsjo 43c854535e [llvm-readobj] Improve printouts for COFF ARM64 binaries
Differential Revision: https://reviews.llvm.org/D34835

llvm-svn: 306795
2017-06-30 07:02:13 +00:00
Martin Storsjo 8ae07ac837 [llvm-readobj] Include the PE magic value in printouts
This is useful for a testcase in lld.

Differential Revision: https://reviews.llvm.org/D34836

llvm-svn: 306794
2017-06-30 07:02:04 +00:00
Daniel Jasper 3b704ceba1 Revert "r306541 - Add zero-length check to memcpy/memset load store loop expansion"
Segfaults in non-optimized builds. I'll get a stack trace and a
reproducer to Teresa.

llvm-svn: 306793
2017-06-30 06:37:33 +00:00
Daniel Jasper 5ce1ce742e Revert "r306473 - re-commit r306336: Enable vectorizer-maximize-bandwidth by default."
This still breaks PPC tests we have. I'll forward reproduction
instructions to dehao.

llvm-svn: 306792
2017-06-30 06:32:21 +00:00
Tobias Grosser 37c8ee7611 Fix typo
llvm-svn: 306791
2017-06-30 06:30:51 +00:00
Eric Christopher b11a3222e8 Add -no-canonical-prefixes to the test line so that we can handle different build modes.
llvm-svn: 306790
2017-06-30 06:03:47 +00:00
Hiroshi Inoue 939d932fbe fix trivial typos, NFC
llvm-svn: 306789
2017-06-30 05:40:31 +00:00
Eric Christopher dbb92cad2e Rewrite demangle memory handling.
The return of itaniumDemangle is allocated with malloc rather than new[]
and so using unique_ptr isn't called for here. As a note for the future
we should rewrite it to do this.

llvm-svn: 306788
2017-06-30 05:38:56 +00:00
Chandler Carruth b853ef9947 Remove Clang support for '-fvectorize-slp-aggressive' which used LLVM's
basic block vectorizer. This vectorizer has had no known users for many,
many years and is completely surpassed by the normal
'-fvectorize-slp'-controlled SLP vectorizer in LLVM.

Hal proposed this back in 2014 to no objections:
http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html

While this patch completely removes the flag, Joerg is working on
a patch that will add it back in a way that warns users and ignores the
flag in a clear and well factored way (so that we can keep doing this
going forward).

Differential Revision: https://reviews.llvm.org/D34846

llvm-svn: 306786
2017-06-30 05:13:31 +00:00