Simon Pilgrim [Wed, 8 May 2019 10:52:26 +0000 (10:52 +0000)]
[VPlan] Fix "value never used" static analyzer warning. NFCI.
llvm-svn: 360241
Andrea Di Biagio [Wed, 8 May 2019 10:44:05 +0000 (10:44 +0000)]
[MCA] Slightly refactor CodeRegion.h. NFCI
Also, use a SmallVector instead of a std::vector for the code region.
llvm-svn: 360240
Simon Pilgrim [Wed, 8 May 2019 10:39:56 +0000 (10:39 +0000)]
R600InstrInfo.cpp - Add getTransSwizzle assert for the swizzle op index. NFCI.
Fixes static analyzer undefined value warning.
llvm-svn: 360239
Keno Fischer [Wed, 8 May 2019 10:36:04 +0000 (10:36 +0000)]
[polly][SCEV] Expand SCEV matcher cases for new smin/umin ops
These were added in rL360159, but I neglected to update polly at the
same time.
llvm-svn: 360238
Andrea Di Biagio [Wed, 8 May 2019 10:28:56 +0000 (10:28 +0000)]
[MCA] Remove dead assignment. NFC
llvm-svn: 360237
Simon Pilgrim [Wed, 8 May 2019 10:24:22 +0000 (10:24 +0000)]
[SIMode] Fix typo in Status constructor
As noted in https://www.viva64.com/en/b/0629/ (Snippet No. 36) and the scan-build CI reports (https://llvm.org/reports/scan-build/report-SIModeRegister.cpp-Status-1-1.html#EndPath), rL348754 introduced a typo in the Status constructor due to argument variable names shadowing the member variable names.
Differential Revision: https://reviews.llvm.org/D61595
llvm-svn: 360236
Simon Pilgrim [Wed, 8 May 2019 10:09:57 +0000 (10:09 +0000)]
[DebugInfo] Fix use-after-move warning. NFCI.
Don't rely on DWARFAbbreviationDeclarationSet::extract cleaning the struct up for reuse - the analyzers don't like it.
llvm-svn: 360235
Simon Pilgrim [Wed, 8 May 2019 10:07:34 +0000 (10:07 +0000)]
Fix cppcheck operator precedence warning. NFCI.
llvm-svn: 360234
James Henderson [Wed, 8 May 2019 09:49:35 +0000 (09:49 +0000)]
[llvm-objcopy] Add --prefix-alloc-sections
This patch adds support for --prefix-alloc-sections, which adds a prefix
to every allocated section names.
It adds a prefix after renaming section names by --rename-section as GNU
objcopy does.
Fixes PR41266: https://bugs.llvm.org/show_bug.cgi?id=41266
Differential Revision: https://reviews.llvm.org/D60042
Patch by Seiya Nuta.
llvm-svn: 360233
Florian Hahn [Wed, 8 May 2019 09:09:54 +0000 (09:09 +0000)]
[SCCP] Fix crash when trying to constant-fold terminators multiple times.
If we fold a branch/switch to an unconditional branch to another dead block we
replace the branch with unreachable, to avoid attempting to fold the
unconditional branch.
Reviewers: davide, efriedma, mssimpso, jdoerfert
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D61300
llvm-svn: 360232
Ilya Biryukov [Wed, 8 May 2019 08:52:18 +0000 (08:52 +0000)]
[clang-tidy] Do not show incorrect fix in modernize-make-unique
Summary:
The case when initialize_list hides behind an implicit case was not
handled before.
Reviewers: aaron.ballman
Reviewed By: aaron.ballman
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61642
llvm-svn: 360231
Martin Storsjo [Wed, 8 May 2019 08:37:34 +0000 (08:37 +0000)]
[CMake] Install import libraries
Simplify the cmake logic to install both runtime and import
libraries (treated as ARCHIVE), as the later are needed to link
against llvm.
Patch by Julien Schueller!
Differential Revision: https://reviews.llvm.org/D61425
llvm-svn: 360230
QingShan Zhang [Wed, 8 May 2019 07:56:59 +0000 (07:56 +0000)]
[NFC][PowerPC] Add test for store combine optimization.
llvm-svn: 360229
QingShan Zhang [Wed, 8 May 2019 07:32:12 +0000 (07:32 +0000)]
[CodeGenPrepare] Don't split the store if it is volatile
We shouldn't split the store when it is volatile.
Differential Revision: https://reviews.llvm.org/D61169
llvm-svn: 360228
George Rimar [Wed, 8 May 2019 07:31:05 +0000 (07:31 +0000)]
[llvm-objcopy] - Fix for "Bug 41775 - SymbolTableSection::addSymbol - shadow variable names"
This is a fix for https://bugs.llvm.org/show_bug.cgi?id=41775,
Problem is in the final line:
Size += this->EntrySize;
I checked that we do not actually need it in this place,
since we always call removeSectionReferences which
calls removeSymbols which updates the Size.
But it worth to keep it, that allows to relax the dependencies.
Differential revision: https://reviews.llvm.org/D61636
llvm-svn: 360227
QingShan Zhang [Wed, 8 May 2019 07:21:37 +0000 (07:21 +0000)]
[NFC] Add a static function to do the endian check
Add a new function to do the endian check, as I will commit another patch later, which will also need the endian check.
Differential Revision: https://reviews.llvm.org/D61236
llvm-svn: 360226
Leonard Chan [Wed, 8 May 2019 05:59:25 +0000 (05:59 +0000)]
Fix for the greendragon bots.
Adds extra checks for ObjC GC and Ownership.
llvm-svn: 360225
Sam McCall [Wed, 8 May 2019 05:49:42 +0000 (05:49 +0000)]
[Sema] Correct typos in return statements so the return types of 'auto' functions are always deduced.
Summary:
e.g.
auto foo() {
return no_such_thing; // Return value is a TypoExpr
}
using T = decltype(foo()); // Uh-oh, undeduced auto.
Reviewers: rsmith
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61649
llvm-svn: 360224
Mircea Trofin [Wed, 8 May 2019 03:57:25 +0000 (03:57 +0000)]
[llvm] Avoid div by 0 when updating profile weights.
Reviewers: davidxl
Reviewed By: davidxl
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61661
llvm-svn: 360223
Dan Robertson [Wed, 8 May 2019 02:25:08 +0000 (02:25 +0000)]
[ValueTracking] Improve isKnowNonZero for Ints
Improve isKnownNonZero for integers in order to improve cttz
optimizations.
Differential Revision: https://reviews.llvm.org/D60846
llvm-svn: 360222
Lang Hames [Wed, 8 May 2019 02:11:07 +0000 (02:11 +0000)]
[Support] Add error handling to sys::Process::getPageSize().
This patch changes the return type of sys::Process::getPageSize to
Expected<unsigned> to account for the fact that the underlying syscalls used to
obtain the page size may fail (see below).
For clients who use the page size as an optimization only this patch adds a new
method, getPageSizeEstimate, which calls through to getPageSize but discards
any error returned and substitues a "reasonable" page size estimate estimate
instead. All existing LLVM clients are updated to call getPageSizeEstimate
rather than getPageSize.
On Unix, sys::Process::getPageSize is implemented in terms of getpagesize or
sysconf, depending on which macros are set. The sysconf call is documented to
return -1 on failure. On Darwin getpagesize is implemented in terms of sysconf
and may also fail (though the manpage documentation does not mention this).
These failures have been observed in practice when highly restrictive sandbox
permissions have been applied. Without this patch, the result is that
getPageSize returns -1, which wreaks havoc on any subsequent code that was
assuming a sane page size value.
<rdar://problem/
41654857>
Reviewers: dblaikie, echristo
Subscribers: kristina, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D59107
llvm-svn: 360221
Nemanja Ivanovic [Wed, 8 May 2019 02:03:32 +0000 (02:03 +0000)]
Fix buildbot break after r360195
llvm-svn: 360220
Jonas Devlieghere [Wed, 8 May 2019 01:51:26 +0000 (01:51 +0000)]
[Docs] Fix incorrect heading and update titles.
This patch fixes two incorrect headings in source.rst which caused it to
show up on the homepage. I also updated the titles to have more sensible
links there.
llvm-svn: 360219
Jonas Devlieghere [Wed, 8 May 2019 01:38:12 +0000 (01:38 +0000)]
[Docs] Re-order homepage: Download -> Build -> Test
I also reformatted some paragraphs to 80 cols.
llvm-svn: 360218
Richard Smith [Wed, 8 May 2019 01:36:36 +0000 (01:36 +0000)]
Split ActOnCallExpr into an ActOnCallExpr to be called by the parser,
and a BuildCallExpr to be called internally within Sema to build /
rebuild calls.
llvm-svn: 360217
Jonas Devlieghere [Wed, 8 May 2019 01:23:47 +0000 (01:23 +0000)]
Propagate command interpreter errors from lldlbinit
This patch ensures that we propagate errors coming from the lldbinit
file trough the command/script interpreter. Before, if you did something
like command script import syntax_error.py, and the python file
contained a syntax error, lldb wouldn't tell you about it. This changes
with the current patch: errors are now propagated by default.
PS: Jim authored this change and I added testing.
Differential revision: https://reviews.llvm.org/D61579
llvm-svn: 360216
Kostya Serebryany [Wed, 8 May 2019 01:03:05 +0000 (01:03 +0000)]
[libFuzzer] extend the test for data flow tracer and coverage; also hopefully fix it on the bot
llvm-svn: 360215
Michael Liao [Wed, 8 May 2019 00:52:33 +0000 (00:52 +0000)]
[hip] Fix ambiguity from `>>>` of CUDA.
Summary:
- For template arguments ending with `>>>`, we should cease lookahead
and treat it as type-id firstly, so that deduction could work
properly.
Reviewers: tra, yaxunl
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61396
llvm-svn: 360214
Kostya Serebryany [Wed, 8 May 2019 00:51:15 +0000 (00:51 +0000)]
[libFuzzer] extend the data flow tracer to also produce basic block coverage for every input. An extended test coming in a separte change.
llvm-svn: 360213
Kamil Rytarowski [Wed, 8 May 2019 00:44:41 +0000 (00:44 +0000)]
Fix build on NetBSD 8.99.38
With recent changes the dev/nvmm/nvmm_ioctl.h header is no longer
a standalone NVMM header. Disable it until the NVMM operations will
stabilize and be included in the ioctl(2) interceptors.
llvm-svn: 360212
Kostya Serebryany [Wed, 8 May 2019 00:43:12 +0000 (00:43 +0000)]
[libFuzzer] disable two tests on i386 that are causing timeouts on the bots
llvm-svn: 360211
Philip Reames [Tue, 7 May 2019 23:48:42 +0000 (23:48 +0000)]
[Tests] Expand coverage of small memset zero idioms
llvm-svn: 360210
Jonas Devlieghere [Tue, 7 May 2019 23:14:06 +0000 (23:14 +0000)]
[Docs] Add timestamp
llvm-svn: 360209
Alex Langford [Tue, 7 May 2019 23:11:05 +0000 (23:11 +0000)]
[Expression] Remove unused dependency
lldbExpression was linking against lldbPluginExpressionParserClang, and
lldbPluginExpressionParserClang was linking against lldbExpression.
There's no reason lldbExpression should need anything from
lldbPluginExpressionParserClang, so let's remove that dependency.
llvm-svn: 360208
Reid Kleckner [Tue, 7 May 2019 23:06:21 +0000 (23:06 +0000)]
[COFF] Use COFF stubs for extern_weak functions
Summary:
A COFF stub indirects the reference to a symbol through memory. A
.refptr.$sym global variable pointer is created to refer to $sym.
Typically mingw uses these for external global variable declarations,
but we can use them for weak function declarations as well.
Updates the dso_local classification to add a special case for
extern_weak symbols on COFF in both clang and LLVM.
Fixes PR37598
Reviewers: smeenai, mstorsjo
Subscribers: hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D61615
llvm-svn: 360207
Sanjay Patel [Tue, 7 May 2019 22:58:31 +0000 (22:58 +0000)]
[ValueTracking] add logic for known-never-nan with minnum/maxnum
From the LangRef: "Returns NaN only if both operands are NaN."
llvm-svn: 360206
Lang Hames [Tue, 7 May 2019 22:56:40 +0000 (22:56 +0000)]
Reapply r360194 "[JITLink] Add support for MachO .alt_entry atoms." with fixes.
This patch modifies MachOAtomGraphBuilder to use setLayoutNext rather than
addEdge, and fixes a bug in the section layout algorithm that could result in
atoms appearing more than once in the section ordering (which resulted in those
atoms being assigned invalid addresses during layout).
llvm-svn: 360205
Reid Kleckner [Tue, 7 May 2019 22:40:40 +0000 (22:40 +0000)]
Regenerate test case again after last revert
llvm-svn: 360204
Reid Kleckner [Tue, 7 May 2019 22:35:56 +0000 (22:35 +0000)]
Delete test cases added in r360162 that should have been deleted in r360190
llvm-svn: 360203
Artem Dergachev [Tue, 7 May 2019 22:33:13 +0000 (22:33 +0000)]
[analyzer] Fix a crash when doing RVO from within blocks.
When looking for the location context of the call site, unwrap block invocation
contexts because they are attached to the current AnalysisDeclContext
while what we need is the previous AnalysisDeclContext.
Differential Revision: https://reviews.llvm.org/D61545
llvm-svn: 360202
Alina Sbirlea [Tue, 7 May 2019 22:26:52 +0000 (22:26 +0000)]
[MemorySSA] Fix CHECKs in test. [NFC]
llvm-svn: 360201
Lang Hames [Tue, 7 May 2019 22:19:29 +0000 (22:19 +0000)]
Revert r360194 "[JITLink] Add support for MachO .alt_entry atoms."
The testcase is asserting on some bots - reverting while I investigate.
llvm-svn: 360200
Austin Kerbow [Tue, 7 May 2019 22:12:15 +0000 (22:12 +0000)]
[AMDGPU] Check MI bundles for hazards
Summary: GCNHazardRecognizer fails to identify hazards that are in and around bundles. This patch allows the hazard recognizer to consider bundled instructions in both scheduler and hazard recognizer mode. We ignore “bundledness” for the purpose of detecting hazards and examine the instructions individually.
Reviewers: arsenm, msearles, rampitec
Reviewed By: rampitec
Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, t-tye, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61564
llvm-svn: 360199
Austin Kerbow [Tue, 7 May 2019 22:09:04 +0000 (22:09 +0000)]
[CodeGen] Rename DEBUG_TYPE for default hazard recognizer.
Summary:
The DEBUG_TYPE of the default hazard recognizer should be updated to
match the DEBUG_TYPE of the machine-scheduler pass.
Reviewers: rampitec
Reviewed By: rampitec
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61359
llvm-svn: 360198
Sanjay Patel [Tue, 7 May 2019 21:50:09 +0000 (21:50 +0000)]
[InstSimplify] add tests for minnum/maxnum and NaN; NFC
llvm-svn: 360197
Chris Bieneman [Tue, 7 May 2019 21:46:55 +0000 (21:46 +0000)]
[CMake] Detecting python modules should be cached
Summary: This requres exec-ing python, which in a trace I ran of the CMake re-configure time took ~2% of the reconfigure time.
Reviewers: phosek, smeenai, compnerd
Subscribers: mgorny, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61402
llvm-svn: 360196
David Blaikie [Tue, 7 May 2019 21:38:51 +0000 (21:38 +0000)]
-frewrite-imports: Add support for wildcard rules in umbrella modules with
This trips over a few other limitations, but in the interests of incremental development I'm starting here & I'll look at the issues with -verify and filesystem checks (the fact that the behavior depends on the existence of a 'foo' directory even though it shouldn't need it), etc.
Reviewers: rsmith
Differential Revision: https://reviews.llvm.org/D61656
llvm-svn: 360195
Lang Hames [Tue, 7 May 2019 21:35:14 +0000 (21:35 +0000)]
[JITLink] Add support for MachO .alt_entry atoms.
The MachO .alt_entry directive is applied to a symbol to indicate that it is
locked (in terms of address layout and liveness) to its predecessor atom. I.e.
it is an alternate entry point, at a fixed offset, for the previous atom.
This patch updates MachOAtomGraphBuilder to check for the .alt_entry flag on
symbols and add a corresponding LayoutNext edge to the atom-graph. It also
updates MachOAtomGraphBuilder_x86_64 to generalize handling of the
X86_64_RELOC_SUBTRACTOR relocation: previously either the minuend or
subtrahend of the subtraction had to be the same as the atom being fixed up,
now it is only necessary for the minuend or subtrahend to be locked (via any
chain of alt_entry directives) to the atom being fixed up.
llvm-svn: 360194
Alex Langford [Tue, 7 May 2019 21:34:44 +0000 (21:34 +0000)]
[Core] Remove unused dependencies
llvm-svn: 360193
Jonas Devlieghere [Tue, 7 May 2019 21:08:15 +0000 (21:08 +0000)]
Revert "[OpenMP][Clang] Support for target math functions"
This commit appears to be breaking stage-2 builds on GreenDragon. The
OpenMP wrappers for cmath and math.h are copied into the root of the
resource directory and cause a cyclic dependency in module 'Darwin':
Darwin -> std -> Darwin. This blows up when CMake is testing for modules
support and breaks all stage 2 module builds, including the ThinLTO bot
and all LLDB bots.
CMake Error at cmake/modules/HandleLLVMOptions.cmake:497 (message):
LLVM_ENABLE_MODULES is not supported by this compiler
llvm-svn: 360192
Kostya Serebryany [Tue, 7 May 2019 20:57:11 +0000 (20:57 +0000)]
revert r360162 as it breaks most of the buildbots
llvm-svn: 360190
Nikita Popov [Tue, 7 May 2019 20:34:46 +0000 (20:34 +0000)]
[ConstantRange] Simplify makeGNWR implementation; NFC
Compute results in more direct ways, avoid subset intersect
operations. Extract the core code for computing mul nowrap ranges
into separate static functions, so they can be reused.
llvm-svn: 360189
Reid Kleckner [Tue, 7 May 2019 20:30:41 +0000 (20:30 +0000)]
[COFF] Store Chunk RVAs and section offsets as uint32_t
Saves 8 bytes on SectionChunk, one of the most commonly allocated data
structures.
llvm-svn: 360188
Simon Atanasyan [Tue, 7 May 2019 20:26:23 +0000 (20:26 +0000)]
[mips] Fix ld instruction in PLT entries on MIPS64
Use `ld` and `daddiu` instructions in MIPS64 PLT records. That fixes a
segmentation fault.
Patch by Qiao Pengcheng.
Differential Revision: https://reviews.llvm.org/D61586
llvm-svn: 360187
Simon Atanasyan [Tue, 7 May 2019 20:26:12 +0000 (20:26 +0000)]
[mips] Rename test case. NFC
This test case checks MIPS PLT records for N64 ABI. For the N32 ABI case
there is a separate test case `mips-plt-n32.s`.
llvm-svn: 360186
Robert Lougher [Tue, 7 May 2019 19:36:41 +0000 (19:36 +0000)]
[InstCombine] Add new combine to add folding
(X | C1) + C2 --> (X | C1) ^ C1 iff (C1 == -C2)
I verified the correctness using Alive:
https://rise4fun.com/Alive/YNV
This transform enables the following transform that already exists in
instcombine:
(X | Y) ^ Y --> X & ~Y
As a result, the full expected transform is:
(X | C1) + C2 --> X & ~C1 iff (C1 == -C2)
There already exists the transform in the sub case:
(X | Y) - Y --> X & ~Y
However this does not trigger in the case where Y is constant due to an earlier
transform:
X - (-C) --> X + C
With this new add fold, both the add and sub constant cases are handled.
Patch by Chris Dawson.
Differential Revision: https://reviews.llvm.org/D61517
llvm-svn: 360185
Eric Christopher [Tue, 7 May 2019 19:25:34 +0000 (19:25 +0000)]
Make sure that the DAG combiner doesn't merge stores that we explicitly
asked not be greater than preferred vector width for the vectorizer.
Test for both 128 and 256 with a skylake architecture.
llvm-svn: 360183
Pavel Labath [Tue, 7 May 2019 19:24:28 +0000 (19:24 +0000)]
Disable eh-frame-dwarf-unwind.test on windows
It fails on the windows bot. Disable until I can figure out what's the
reason.
llvm-svn: 360182
Shoaib Meenai [Tue, 7 May 2019 19:00:37 +0000 (19:00 +0000)]
[compiler-rt] Create install targets for Darwin libraries
Darwin targets were generating CMake install rules but not the
corresponding install targets. Centralize the existing install target
creation to a function and use that function for both Darwin and
non-Darwin builds.
Differential Revision: https://reviews.llvm.org/D61541
llvm-svn: 360181
Sanjay Patel [Tue, 7 May 2019 18:58:07 +0000 (18:58 +0000)]
[InstCombine] allow sinking fneg operands through an FP min/max
Fundamentally/generally, we should not have to rely on bailouts/crippling of
folds. In this particular case, I think we always recognize the inverted
predicate min/max pattern, so there should not be any loss of optimization.
Codegen looks better because we are eliminating an fneg.
llvm-svn: 360180
Don Hinton [Tue, 7 May 2019 18:57:01 +0000 (18:57 +0000)]
[CommandLine] Allow Options to specify multiple OptionCategory's.
Summary:
It's not uncommon for separate components to share common
Options, e.g., it's common for related Passes to share Options in
addition to the Pass specific ones.
With this change, components can use OptionCategory's to simply help
output even if some of the options are shared.
Reviewed By: MaskRay
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D61574
llvm-svn: 360179
Alex Langford [Tue, 7 May 2019 18:08:06 +0000 (18:08 +0000)]
[Host] Clean up dependencies of HostMacOSXObjCXX
llvm-svn: 360178
Philip Reames [Tue, 7 May 2019 17:45:52 +0000 (17:45 +0000)]
[Tests] Yet more combination of tests for unordered.atomic memset
llvm-svn: 360177
Adrian Prantl [Tue, 7 May 2019 17:42:38 +0000 (17:42 +0000)]
Debug Info: Support address space attributes on rvalue references.
DWARF5, 2.12 20ff says that
Any debugging information entry representing a pointer or reference
type [may have a DW_AT_address_class attribute].
The existing code (https://reviews.llvm.org/D29670) seems to take a
quite literal interpretation of that wording. I don't see a reason why
an rvalue reference isn't a reference type in the spirit of that
paragraph. This patch allows rvalue references to also have address
spaces.
rdar://problem/
50511483
Differential Revision: https://reviews.llvm.org/D61625
llvm-svn: 360176
Jinsong Ji [Tue, 7 May 2019 17:29:44 +0000 (17:29 +0000)]
[PowerPC][NFC] Update build-vector-tests.ll using utils/update_llc_test_checks.py
build-vector-tests.ll is a huge testcase, it is hard to maintain: eg:
any fundamental changes might need to update hundreds of lines. We should
leverage the script to maintain it.
This patch simply run utils/update_llc_test_checks.py on it. There
should be no missing test points.
llvm-svn: 360175
Adrian Prantl [Tue, 7 May 2019 17:10:27 +0000 (17:10 +0000)]
Guard __builtin_available() with __has_builtin to support older host compilers.
llvm-svn: 360174
Simon Pilgrim [Tue, 7 May 2019 17:10:10 +0000 (17:10 +0000)]
Regenerate test to try and fix buildbots
llvm-svn: 360173
Jonas Devlieghere [Tue, 7 May 2019 16:57:17 +0000 (16:57 +0000)]
[Driver] Add command line option to allow loading local lldbinit file.
This patch adds a command line flag that allows lldb to load local
lldbinit files.
Differential revision: https://reviews.llvm.org/D61578
llvm-svn: 360172
Florian Hahn [Tue, 7 May 2019 16:47:27 +0000 (16:47 +0000)]
[DAGCombiner] Avoid creating large tokenfactors in visitTokenFactor
When simplifying TokenFactors, we potentially iterate over all
operands of a large number of TokenFactors. This causes quadratic
compile times in some cases and the large token factors cause additional
scalability problems elsewhere.
This patch adds some limits to the number of nodes explored for the
cases mentioned above.
Reviewers: niravd, spatel, craig.topper
Reviewed By: niravd
Differential Revision: https://reviews.llvm.org/D61397
llvm-svn: 360171
Sanjay Patel [Tue, 7 May 2019 16:25:43 +0000 (16:25 +0000)]
[InstCombine] add tests for FP min/max with negated operands; NFC
llvm-svn: 360170
Pavel Labath [Tue, 7 May 2019 16:13:10 +0000 (16:13 +0000)]
Fixup r360161
Remove SymbolVendorMacOSX from the test, as this plugin is not available
on non-mac platforms, and it does not seem to be necessary anyway.
Declare inlined-functions.yaml as an input of the test in cmake.
llvm-svn: 360169
Pavel Labath [Tue, 7 May 2019 16:13:05 +0000 (16:13 +0000)]
Make eh-frame-dwarf-unwind.test run on non-linux platforms
This was meant to be a part of r360158, but I forgot to squash the
commits before pushing.
llvm-svn: 360168
Marshall Clow [Tue, 7 May 2019 16:07:24 +0000 (16:07 +0000)]
Mark private function __sign as constexpr.
llvm-svn: 360167
Pavel Labath [Tue, 7 May 2019 15:58:20 +0000 (15:58 +0000)]
PostfixExpression: Use signed integers in IntegerNode
Summary:
This is necessary to support parsing expressions like ".cfa -16 + ^", as
that format is used in breakpad STACK CFI expressions.
Since the PDB expressions use the same parser, this change will affect
them too, but I don't believe that should be a problem in practice. If
PDBs do contain the negative values, it's very likely that they are
intended to be parsed the same way, and if they don't, then it doesn't
matter.
In case that we do ever need to handle this differently, we can always
make the parser behavior customizable, or just use a different parser.
To make sure that the integer size is big enough for everyone, I switch
from using a (unsigned) 32-bit integer to a 64-bit (signed) one.
Reviewers: amccarth, clayborg, aleksandr.urakov
Subscribers: markmentovai, lldb-commits
Differential Revision: https://reviews.llvm.org/D61311
llvm-svn: 360166
Sam Clegg [Tue, 7 May 2019 15:46:30 +0000 (15:46 +0000)]
[WebAssembly] Don't generate unused table entries.
When generating PIC output only relocations of type
R_WASM_TABLE_INDEX_REL_SLEB should generate table entries.
R_WASM_TABLE_INDEX_I32 get resolved at runtime via the auto-generated
__wasm_apply_relocs functions.
R_WASM_TABLE_INDEX_SLEB are not allowed in PIC code.
Differential Revision: https://reviews.llvm.org/D61539
llvm-svn: 360165
Simon Pilgrim [Tue, 7 May 2019 15:45:00 +0000 (15:45 +0000)]
Avoid use-after-move warnings by using swap instead. NFCI.
Swap should be as quick in these cases, and leaves the original variables in a known (empty) state.
llvm-svn: 360164
Kostya Kortchinsky [Tue, 7 May 2019 15:40:09 +0000 (15:40 +0000)]
[scudo][standalone] Introduce the Quarantine
Summary:
The Quarantine is used to hold chunks for a little while prior to
actually releasing them for potential reuse. The code is pretty much
the same as the sanitizer_common one, with additional shuffling of
the quarantine batches to decrease predictability of allocation
patterns when it is enabled.
Reviewers: vitalybuka, eugenis, hctim, morehouse
Reviewed By: morehouse
Subscribers: mgorny, delcypher, jfb, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D61385
llvm-svn: 360163
Orlando Cazalet-Hyams [Tue, 7 May 2019 15:37:38 +0000 (15:37 +0000)]
[DebugInfo@O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion
Summary:
Bug: https://bugs.llvm.org/show_bug.cgi?id=39024
The bug reports that a vectorized loop is stepped through 4 times and each step through the loop seemed to show a different path. I found two problems here:
A) An incorrect line number on a preheader block (for.body.preheader) instruction causes a step into the loop before it begins.
B) Instructions in the middle block have different line numbers which give the impression of another iteration.
In this patch I give all of the middle block instructions the line number of the scalar loop latch terminator branch. This seems to provide the smoothest debugging experience because the vectorized loops will always end on this line before dropping into the scalar loop. To solve problem A I have altered llvm::SplitBlockPredecessors to accommodate loop header blocks.
Reviewers: samsonov, vsk, aprantl, probinson, anemet, hfinkel
Reviewed By: hfinkel
Subscribers: bjope, jmellorcrummey, hfinkel, gbedwell, hiraditya, zzheng, llvm-commits
Tags: #llvm, #debug-info
Differential Revision: https://reviews.llvm.org/D60831
llvm-svn: 360162
Greg Clayton [Tue, 7 May 2019 15:37:28 +0000 (15:37 +0000)]
Added missing files from 360071.
llvm-svn: 360161
Lang Hames [Tue, 7 May 2019 15:35:43 +0000 (15:35 +0000)]
[JITLink] Fix some copy/paste related typos in a test case.
Several X86_64_RELOC_SUBTRACTOR tests for subtrahend handling were incorrectly
labeled as tests for kinds of minuend handling.
llvm-svn: 360160
Keno Fischer [Tue, 7 May 2019 15:28:47 +0000 (15:28 +0000)]
[SCEV] Add explicit representations of umin/smin
Summary:
Currently we express umin as `~umax(~x, ~y)`. However, this becomes
a problem for operands in non-integral pointer spaces, because `~x`
is not something we can compute for `x` non-integral. However, since
comparisons are generally still allowed, we are actually able to
express `umin(x, y)` directly as long as we don't try to express is
as a umax. Support this by adding an explicit umin/smin representation
to SCEV. We do this by factoring the existing getUMax/getSMax functions
into a new function that does all four. The previous two functions were
largely identical.
Reviewed By: sanjoy
Differential Revision: https://reviews.llvm.org/D50167
llvm-svn: 360159
Pavel Labath [Tue, 7 May 2019 15:27:35 +0000 (15:27 +0000)]
RegisterContextLLDB: Push CFA value on DWARF stack when evaluating register expressions
Summary:
This behavior is specified in the Section 6.4.2.3 (Register Rule
instructions) of the DWARF4 spec. We were not doing that, which meant
that any register rule which was relying on the cfa value being there
was not evaluated correctly (it was aborted due to "out of bounds"
access).
I'm not sure how come this wasn't noticed before, but I guess this has
something to do with the fact that dwarf unwind expressions are not used
very often, and when they are, the situation is so complicated that the
CFA is of no use. I noticed this when I started emitting dwarf
expressions for the unwind information present in breakpad symbol files.
Reviewers: jasonmolenda, clayborg
Subscribers: aprantl, lldb-commits
Differential Revision: https://reviews.llvm.org/D61018
llvm-svn: 360158
Simon Pilgrim [Tue, 7 May 2019 14:56:34 +0000 (14:56 +0000)]
Fix local shadow variable warning. NFCI.
llvm-svn: 360157
Balazs Keri [Tue, 7 May 2019 14:53:04 +0000 (14:53 +0000)]
[ASTImporter] Corrected type of integer constant in a test.
llvm-svn: 360156
Aaron Ballman [Tue, 7 May 2019 14:40:37 +0000 (14:40 +0000)]
Add an explicit triple to this test to hopefully appease the build bots.
llvm-svn: 360155
Michal Gorny [Tue, 7 May 2019 14:35:59 +0000 (14:35 +0000)]
[lldb] [lit] Update constants in write Register tests
Update the constants used for XMM/YMM/ZMM registers to match read tests.
llvm-svn: 360154
Sam McCall [Tue, 7 May 2019 14:34:06 +0000 (14:34 +0000)]
[Tooling] Add -x flags when inferring compile commands for files with no/invalid extension.
Summary: We treat them as headers, as the motivating case is C++ standard library.
Reviewers: kadircet
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D61633
llvm-svn: 360153
Anastasia Stulova [Tue, 7 May 2019 14:22:34 +0000 (14:22 +0000)]
[OpenCL] Prevent mangling kernel functions.
Kernel function names have to be preserved as in the original
source to be able to access them from the host API side.
This commit also adds restriction to kernels that prevents them
from being used in overloading, templates, etc.
Differential Revision: https://reviews.llvm.org/D60454
llvm-svn: 360152
Ilya Biryukov [Tue, 7 May 2019 14:18:18 +0000 (14:18 +0000)]
[clangd] Introduce intermediate representation of formatted text
Summary: That can render to markdown or plain text. Used for findHover requests.
Reviewers: malaperle, sammccall, kadircet
Reviewed By: sammccall
Subscribers: mgorny, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D58547
llvm-svn: 360151
Nico Weber [Tue, 7 May 2019 14:15:35 +0000 (14:15 +0000)]
lld-link: Allow /? as option prefix, like -? is allowed
link.exe seems to allow `/?foo` and `-?foo` in addition to `/foo` and `-foo`.
Since lld-link already supports the `-?foo` spelling, support `/?foo` as well.
Differential Revision: https://reviews.llvm.org/D61375
llvm-svn: 360150
Robert Lougher [Tue, 7 May 2019 14:14:29 +0000 (14:14 +0000)]
Precommit tests for or/add transform. NFC.
llvm-svn: 360149
Michal Gorny [Tue, 7 May 2019 14:02:11 +0000 (14:02 +0000)]
[lldb] [lit] Fix Register tests to reference arrays via %0 and %1
Fix Register tests to reference memory access to arrays via %0 and %1,
rather than via referencing %rax and %rbx directly. This fixes test
build failures on 32-bit x86.
llvm-svn: 360148
Aaron Ballman [Tue, 7 May 2019 14:00:49 +0000 (14:00 +0000)]
Allow field offset lookups in types with incomplete arrays within libclang.
Patch thanks to Jorn Vernee
llvm-svn: 360147
Krasimir Georgiev [Tue, 7 May 2019 13:59:30 +0000 (13:59 +0000)]
[lldb] Add MacroQualified switch cases for r360109
Summary:
r360109 added a new enum case, causing lldb build to fail with several errors like:
lldb/source/Symbol/ClangASTContext.cpp:4342:11: error: enumeration value 'MacroQualified' not handled in switch [-Werror,-Wswitch]
switch (qual_type->getTypeClass()) {
^
This adds the missing switch cases.
I'm not an lldb maintainer and just used my best judgement that it's probably expected that we break in these cases. Feel free to ping / revert / fix this change if this behavior is not appropriate.
Reviewers: gribozavr
Reviewed By: gribozavr
Differential Revision: https://reviews.llvm.org/D61640
llvm-svn: 360146
Nico Weber [Tue, 7 May 2019 13:48:30 +0000 (13:48 +0000)]
Add typo correction for command-line flags to ELF and COFF lld drivers
For lld-link, unknown '/'-style flags are treated as filenames on POSIX
systems, so only '-'-style flags get typo correction for now. This
matches clang-cl.
PR37006.
Differential Revision: https://reviews.llvm.org/D61443
llvm-svn: 360145
Nemanja Ivanovic [Tue, 7 May 2019 13:48:03 +0000 (13:48 +0000)]
[PowerPC] Use the two-constant NR algorithm for refining estimates
The single-constant algorithm produces infinities on a lot of denormal values.
The precision of the two-constant algorithm is actually sufficient across the
range of denormals. We will switch to that algorithm for now to avoid the
infinities on denormals. In the future, we will re-evaluate the algorithm to
find the optimal one for PowerPC.
Differential revision: https://reviews.llvm.org/D60037
llvm-svn: 360144
George Rimar [Tue, 7 May 2019 13:14:18 +0000 (13:14 +0000)]
[llvm-objdump] - Print relocation record in a GNU format.
This fixes the https://bugs.llvm.org/show_bug.cgi?id=41355.
Previously with -r we printed relocation section name instead of the target section name.
It was like this: "RELOCATION RECORDS FOR [.rel.text]"
Now it is: "RELOCATION RECORDS FOR [.text]"
Also when relocation target section has more than one relocation section,
we did not combine the output. Now we do.
Differential revision: https://reviews.llvm.org/D61312
llvm-svn: 360143
Nico Weber [Tue, 7 May 2019 13:14:14 +0000 (13:14 +0000)]
minor cmake formatting style fix
llvm-svn: 360142
Nico Weber [Tue, 7 May 2019 13:07:23 +0000 (13:07 +0000)]
gn build: Merge r360116
llvm-svn: 360141
Nico Weber [Tue, 7 May 2019 13:02:18 +0000 (13:02 +0000)]
gn build: Run `git ls-files '*.gn' '*.gni' | xargs llvm/utils/gn/gn.py format`
llvm-svn: 360140