Evandro Menezes [Tue, 15 Jan 2019 00:58:59 +0000 (00:58 +0000)]
[AArch64] Fix typo (NFC)
Fix another typo, this time in the `RUN` line, which used a syntax not
universally supported, in test case added by D56572.
llvm-svn: 351144
Evandro Menezes [Tue, 15 Jan 2019 00:20:57 +0000 (00:20 +0000)]
[AArch64] Fix typo (NFC)
Fix typo in test case added by D56572 (rL351139).
llvm-svn: 351143
Eli Friedman [Tue, 15 Jan 2019 00:19:46 +0000 (00:19 +0000)]
[EarlyIfConversion] Don't if-convert unconditional branches.
A block ending in an unconditional branch can have two successors if one
is a landing pad. In practice, I think this only has an effect on
Windows because landing pads are never empty for Itanium unwinding.
(Alternatively, I could add a check to
AArch64InstrInfo::canInsertSelect, but this seems more obvious.)
Differential Revision: https://reviews.llvm.org/D56468
llvm-svn: 351142
Eli Friedman [Tue, 15 Jan 2019 00:15:24 +0000 (00:15 +0000)]
[AArch64] Explicitly use v1i64 type for llvm.aarch64.neon.abs.i64 .
Otherwise, with D56544, the intrinsic will be expanded to an integer
csel, which is probably not what the user expected. This matches the
general convention of using "v1" types to represent scalar integer
operations in vector registers.
While I'm here, also add some error checking so we don't generate
illegal ABS nodes.
Differential Revision: https://reviews.llvm.org/D56616
llvm-svn: 351141
Marshall Clow [Tue, 15 Jan 2019 00:05:05 +0000 (00:05 +0000)]
Generalize the comparison test structure to support cross-type comparisons. NFC to the library
llvm-svn: 351140
Evandro Menezes [Mon, 14 Jan 2019 23:54:36 +0000 (23:54 +0000)]
[AArch64] Add new target feature to fuse arithmetic and logic operations
This feature enables the fusion of some arithmetic and logic instructions
together.
Differential revision: https://reviews.llvm.org/D56572
llvm-svn: 351139
Lang Hames [Mon, 14 Jan 2019 23:49:13 +0000 (23:49 +0000)]
[ORC] Move ORC Core symbol map and set types into their own header: CoreTypes.h.
This will allow other utilities (including a future RuntimeDyld replacement) to
use these types without pulling in the major Core types (JITDylib, etc.).
llvm-svn: 351138
Mandeep Singh Grang [Mon, 14 Jan 2019 23:45:58 +0000 (23:45 +0000)]
[Sema] Change std::sort to llvm::sort
llvm-svn: 351137
Benjamin Kramer [Mon, 14 Jan 2019 23:29:54 +0000 (23:29 +0000)]
[X86] Fix unused variable warning in Release builds. NFC.
llvm-svn: 351136
Mandeep Singh Grang [Mon, 14 Jan 2019 23:26:01 +0000 (23:26 +0000)]
[COFF, ARM64] Add __nop intrinsic
Reviewers: rnk, efriedma, TomTan, haripul, ssijaric
Reviewed By: rnk, efriedma
Subscribers: javed.absar, kristof.beyls, cfe-commits
Differential Revision: https://reviews.llvm.org/D56671
llvm-svn: 351135
Roman Lebedev [Mon, 14 Jan 2019 22:44:19 +0000 (22:44 +0000)]
[compiler-rt] UBSan: just completely disable two alignment-assumption tests for now.
And they are faling on clang-cmake-armv7-full too.
*ONLY* these two.
I'm not sure what to make of it.
Perhaps doing a malloc and checking that pointer will
make them fail as expected?
llvm-svn: 351134
Zachary Turner [Mon, 14 Jan 2019 22:41:21 +0000 (22:41 +0000)]
[SymbolFile] Remove SymbolContext parameter from FindTypes.
This parameter was only ever used with the Module set, and
since a SymbolFile is tied to a module, the parameter turns
out to be entirely unnecessary. Furthermore, it doesn't make
a lot of sense to ask a caller to ask SymbolFile which is tied
to Module X to find types for Module Y, but that possibility
was open with the previous interface. By removing this
parameter from the API, it makes it harder to use incorrectly
as well as easier for an implementor to understand what it
needs to do.
llvm-svn: 351133
Zachary Turner [Mon, 14 Jan 2019 22:41:00 +0000 (22:41 +0000)]
[SymbolFile] Remove the SymbolContext parameter from FindNamespace.
Every callsite was passing an empty SymbolContext, so this parameter
had no effect. Inside the DWARF implementation of this function,
however, there was one codepath that checked members of the
SymbolContext. Since no call-sites actually ever used this
functionality, it was essentially dead code, so I've deleted this
code path as well.
llvm-svn: 351132
Zachary Turner [Mon, 14 Jan 2019 22:40:41 +0000 (22:40 +0000)]
[SymbolFile] Rename ParseFunctionBlocks to ParseBlocksRecursive.
This method took a SymbolContext but only actually cared about the
case where the m_function member was set. Furthermore, it was
intended to be implemented to parse blocks recursively despite not
documenting this in its name. So we change the name to indicate
that it should be recursive, while also limiting the function
parameter to be a Function&. This lets the caller know what is
required to use it, as well as letting new implementers know what
kind of inputs they need to be prepared to handle.
llvm-svn: 351131
James Y Knight [Mon, 14 Jan 2019 22:27:32 +0000 (22:27 +0000)]
Update GettingStarted guide to recommend that people use the new
official Git repository.
Remove the directions for using git-svn, and demote the prominence of
the svn instructions.
Also, fix a few other issues while I'm in there:
* Mention LLVM_ENABLE_PROJECTS more.
* Getting started doesn't need to mention test-suite, but should
mention clang and the other projects.
* Remove mentions of "configure", since that's long gone.
I've also adjusted a few other mentions of svn to point to github, but
have not done so comprehensively.
Differential Revision: https://reviews.llvm.org/D56654
llvm-svn: 351130
Nikita Popov [Mon, 14 Jan 2019 22:18:39 +0000 (22:18 +0000)]
Revert "[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors"
This reverts commit r351125.
I missed test changes in an SLPVectorizer test, due to the cost model
changes. Reverting for now.
llvm-svn: 351129
Lang Hames [Mon, 14 Jan 2019 22:05:12 +0000 (22:05 +0000)]
[Object] Return a symbol_iterator, rather than a basic_symbol_iterator, from
MachOObjectFile::getSymbolByIndex.
ObjectFile derivatives should prefer symbol_iterator/SymbolRef over
basic_symbol_iterator/BasicSymbolRef where possible, as the former
retain their link to the ObjectFile (rather than a SymbolicFile) and provide
more functionality.
No test for this: Existing code is working, and we don't have (m)any libObject
unit tests. I'll think about how we can test more systematically going forward.
llvm-svn: 351128
Thomas Lively [Mon, 14 Jan 2019 22:03:43 +0000 (22:03 +0000)]
[WebAssembly][FastISel] Do not assume naive CmpInst lowering
Summary:
Fixes https://bugs.llvm.org/show_bug.cgi?id=40172. See
test/CodeGen/WebAssembly/PR40172.ll for an explanation.
Reviewers: dschuff, aheejin
Subscribers: nikic, llvm-commits, sunfish, jgravelle-google, sbc100
Differential Revision: https://reviews.llvm.org/D56457
llvm-svn: 351127
Jordan Rupprecht [Mon, 14 Jan 2019 21:58:15 +0000 (21:58 +0000)]
[llvm-ar] Temporarily remove failing test which is breaking buildbots
llvm-svn: 351126
Nikita Popov [Mon, 14 Jan 2019 21:43:30 +0000 (21:43 +0000)]
[CodeGen][X86] Expand USUBSAT to UMAX+SUB, also for vectors
Related to https://bugs.llvm.org/show_bug.cgi?id=40123.
Rather than scalarizing, expand a vector USUBSAT into UMAX+SUB,
which produces much better code for X86.
Differential Revision: https://reviews.llvm.org/D56636
llvm-svn: 351125
James Y Knight [Mon, 14 Jan 2019 21:39:35 +0000 (21:39 +0000)]
[opaque pointer types] Update GetElementPtr creation APIs to
consistently accept a pointee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56559
llvm-svn: 351124
James Y Knight [Mon, 14 Jan 2019 21:37:53 +0000 (21:37 +0000)]
[opaque pointer types] Update LoadInst creation APIs to consistently
accept a return-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56558
llvm-svn: 351123
James Y Knight [Mon, 14 Jan 2019 21:37:48 +0000 (21:37 +0000)]
[opaque pointer types] Update InvokeInst creation APIs to consistently
accept a callee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56557
llvm-svn: 351122
James Y Knight [Mon, 14 Jan 2019 21:37:42 +0000 (21:37 +0000)]
[opaque pointer types] Update CallInst creation APIs to consistently
accept a callee-type argument.
Note: this also adds a new C API and soft-deprecates the old C API.
Differential Revision: https://reviews.llvm.org/D56556
llvm-svn: 351121
Jordan Rupprecht [Mon, 14 Jan 2019 21:11:46 +0000 (21:11 +0000)]
[llvm-ar] Flatten thin archives.
Summary:
Normal behavior for GNU ar is to flatten thin archives when adding them to another thin archive, i.e. add the members directly instead of nesting the archive.
Some refactoring done as part of this patch to ease things:
- Consolidate `addMember`/`addLibMember` methods
- Rename `addMember` to `addChildMember` to make it more visibly different at the call site that an archive child is passed instead of a regular member
- Pass in a separate vector and splice it back into position instead of passing a vector + optional Pos (which makes expanding libs tricky)
This fixes PR37530 as raised by https://github.com/ClangBuiltLinux/linux/issues/279.
Reviewers: mstorsjo, pcc, ruiu
Reviewed By: mstorsjo
Subscribers: llvm-commits, tpimh, nickdesaulniers
Differential Revision: https://reviews.llvm.org/D56508
llvm-svn: 351120
Roman Lebedev [Mon, 14 Jan 2019 21:02:25 +0000 (21:02 +0000)]
[compiler-rt] UBSan: Disable 3 of the new alignment assumption tests on android.
Once again, just like with r338296, these tests seem to only have
failed sanitizer-x86_64-linux-android, so let's just disable them,
since that seems like the pre-established practice here..
To be noted, they failed on some configs there, but not all,
so it is not XFAIL.
llvm-svn: 351119
Jonathan Metzman [Mon, 14 Jan 2019 21:02:02 +0000 (21:02 +0000)]
[SanitizerCoverage][NFC] Use appendToUsed instead of include
Summary:
Use appendToUsed instead of include to ensure that
SanitizerCoverage's constructors are not stripped.
Also, use isOSBinFormatCOFF() to determine if target
binary format is COFF.
Reviewers: pcc
Reviewed By: pcc
Subscribers: hiraditya
Differential Revision: https://reviews.llvm.org/D56369
llvm-svn: 351118
Shoaib Meenai [Mon, 14 Jan 2019 20:33:30 +0000 (20:33 +0000)]
[compiler-rt] Add option to disable libc++ build
Having libc++ checked out doesn't necessarily mean it should be built;
for example, the same source tree might be used for multiple build
configurations, and libc++ might not build in some of those
configurations. Add an option to compiler-rt's build to disable building
libc++. This defaults to ON, so it shouldn't change any existing build
configurations.
Differential Revision: https://reviews.llvm.org/D56479
llvm-svn: 351117
Stephen Kelly [Mon, 14 Jan 2019 20:15:29 +0000 (20:15 +0000)]
[ASTDump] NFC: Move dumping of QualType node to TextNodeDumper
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D56641
llvm-svn: 351116
Stephen Kelly [Mon, 14 Jan 2019 20:13:09 +0000 (20:13 +0000)]
[ASTDump] NFC: Canonicalize handling of TypeLocInfo
Summary: No need to avoid the Visit method.
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D56640
llvm-svn: 351115
Stephen Kelly [Mon, 14 Jan 2019 20:11:02 +0000 (20:11 +0000)]
[ASTDump] NFC: Move Type Visit implementation to TextNodeDumper
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D56639
llvm-svn: 351114
George Karpenkov [Mon, 14 Jan 2019 20:02:11 +0000 (20:02 +0000)]
[lit] llvm-lit.in: specify file encoding to UTF-8
This is needed because otherwise if source dir is at location whose path
contains non-ASCII character then python will complain about
SyntaxError.
SyntaxError: Non-ASCII character '\xc4' in file
/home/D?vis/libc++/src/build/bin/llvm-lit on line 16, but no encoding
declared; see http://python.org/dev/peps/pep-0263/ for details
Patch by davispuh
Differential Revision: https://reviews.llvm.org/D50201
llvm-svn: 351113
Stephen Kelly [Mon, 14 Jan 2019 19:50:34 +0000 (19:50 +0000)]
NFC: Fix nits I missed before
llvm-svn: 351112
Craig Topper [Mon, 14 Jan 2019 19:44:02 +0000 (19:44 +0000)]
[X86] Silence a -Wparentheses warning on gcc. NFC
llvm-svn: 351111
Roman Lebedev [Mon, 14 Jan 2019 19:35:12 +0000 (19:35 +0000)]
[compiler-rt] Update ubsan_interface.inc with alignment assumption handlers
Somehow this escaped my local testing.
A follow-up for r351106.
llvm-svn: 351110
Michal Gorny [Mon, 14 Jan 2019 19:18:34 +0000 (19:18 +0000)]
[test] Disable sunrpc tests when rpc/xdr.h is missing
Disable tests requiring sunrpc when the relevant headers are missing.
In order to accommodate that, move the header check
from sanitizer_common to base-config-ix, and define the check result
as a global variable there. Use it afterwards both for definition
needed by sanitizer_common, and to control 'sunrpc' test feature.
While at it, remove the append_have_file_definition macro that was used
only once, and no longer fits the split check-definition.
Bug report: https://github.com/google/sanitizers/issues/974
Differential Revision: https://reviews.llvm.org/D47819
llvm-svn: 351109
Erik Pilkington [Mon, 14 Jan 2019 19:17:31 +0000 (19:17 +0000)]
Improve a -Wunguarded-availability note
Mention the deployment target, and don't say "partial" which doesn't
really mean anything to users.
rdar://problem/
33601513
Differential revision: https://reviews.llvm.org/D56523
llvm-svn: 351108
David Callahan [Mon, 14 Jan 2019 19:11:32 +0000 (19:11 +0000)]
expand DIContext interface a bit
Summary:
This allows a bit more control for scenarios where client might
modifiy a DIContext
Reviewers: twoh, Kader, modocache
Reviewed By: Kader
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D56505
llvm-svn: 351107
Roman Lebedev [Mon, 14 Jan 2019 19:09:29 +0000 (19:09 +0000)]
[compiler-rt][UBSan] Sanitization for alignment assumptions.
Summary:
This is the compiler-rt part.
The clang part is D54589.
Reviewers: filcab, vsk, #sanitizers, vitalybuka, rsmith, morehouse
Reviewed By: morehouse
Subscribers: rjmccall, krytarowski, rsmith, kcc, srhines, kubamracek, dberris, llvm-commits
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D54590
llvm-svn: 351106
Roman Lebedev [Mon, 14 Jan 2019 19:09:27 +0000 (19:09 +0000)]
[clang][UBSan] Sanitization for alignment assumptions.
Summary:
UB isn't nice. It's cool and powerful, but not nice.
Having a way to detect it is nice though.
[[ https://wg21.link/p1007r3 | P1007R3: std::assume_aligned ]] / http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p1007r2.pdf says:
```
We propose to add this functionality via a library function instead of a core language attribute.
...
If the pointer passed in is not aligned to at least N bytes, calling assume_aligned results in undefined behaviour.
```
This differential teaches clang to sanitize all the various variants of this assume-aligned attribute.
Requires D54588 for LLVM IRBuilder changes.
The compiler-rt part is D54590.
Reviewers: ABataev, craig.topper, vsk, rsmith, rnk, #sanitizers, erichkeane, filcab, rjmccall
Reviewed By: rjmccall
Subscribers: chandlerc, ldionne, EricWF, mclow.lists, cfe-commits, bkramer
Tags: #sanitizers
Differential Revision: https://reviews.llvm.org/D54589
llvm-svn: 351105
Roman Lebedev [Mon, 14 Jan 2019 19:09:15 +0000 (19:09 +0000)]
[llvm][IRBuilder] Introspection for CreateAlignmentAssumption*() functions
Summary:
Clang calls these functions to produce IR for assume-aligned attributes.
I would like to teach UBSAN to verify these assumptions.
For that, i need to access the final pointer on which the check is performed,
and the actual `icmp` that does the check.
The alternative to this would be to fully re-implement this in clang.
Reviewers: spatel, dneilson, craig.topper, dblaikie, hfinkel
Reviewed By: hfinkel
Subscribers: hfinkel, llvm-commits
Differential Revision: https://reviews.llvm.org/D54588
llvm-svn: 351104
Simon Pilgrim [Mon, 14 Jan 2019 19:07:26 +0000 (19:07 +0000)]
[X86][SSSE3] Bailout of lowerVectorShuffleAsPermuteAndUnpack for shuffle-with-zero (PR40306)
If we have PSHUFB and we're shuffling with a zero vector, then we are better off not doing VECTOR_SHUFFLE(UNPCK()) as we lose track of those zero elements.
llvm-svn: 351103
David Callahan [Mon, 14 Jan 2019 19:05:59 +0000 (19:05 +0000)]
Ignore PhiNodes when mapping sample profile data
Summary: Like branch instructions, phi nodes frequently do not have debug information related to the block they are in and so they should be ignored.
Reviewers: danielcdh, twoh, Kader, wmi
Reviewed By: wmi
Subscribers: aprantl, llvm-commits
Differential Revision: https://reviews.llvm.org/D55094
llvm-svn: 351102
Nico Weber [Mon, 14 Jan 2019 19:05:21 +0000 (19:05 +0000)]
lld-link: Spelling fixes in comments and minor style tweaks
Changes a few things I noticed while reading this code.
- fix a few typos in comments
- remove two `auto` uses where the type wasn't clear to me
- add comment saying that two sequential checks for `if (SparseChunks[SectionNumber] == PendingComdat)` are intentional
- name two parameters
No behavior change.
Differential Revision: https://reviews.llvm.org/D56677
llvm-svn: 351101
Amara Emerson [Mon, 14 Jan 2019 18:59:17 +0000 (18:59 +0000)]
Revert r351051 "[clangd] Unlink VFS working dir from OS working dir."
The llvm commit r351050 broke some bots and was reverted.
llvm-svn: 351100
Martin Storsjo [Mon, 14 Jan 2019 18:56:47 +0000 (18:56 +0000)]
[llvm-objcopy] [COFF] Remove unreferenced undefined externals with --strip-unneeded.
Differential Revision: https://reviews.llvm.org/D56660
llvm-svn: 351099
Martin Storsjo [Mon, 14 Jan 2019 18:56:27 +0000 (18:56 +0000)]
[llvm-objcopy] [COFF] Test absolute symbols wrt --strip-unneeded and --discard-all. NFC.
Differential Revision: https://reviews.llvm.org/D56659
llvm-svn: 351098
George Karpenkov [Mon, 14 Jan 2019 18:54:48 +0000 (18:54 +0000)]
[analyzer] [PR39792] false positive on strcpy targeting struct members
Patch by Pierre van Houtryve.
Differential Revision: https://reviews.llvm.org/D55226
llvm-svn: 351097
George Karpenkov [Mon, 14 Jan 2019 18:54:35 +0000 (18:54 +0000)]
[analyzer] [NFC] Remove unused undefined method.
Wow, at no point the linker or compiler complaints about that!
llvm-svn: 351096
David Callahan [Mon, 14 Jan 2019 18:49:27 +0000 (18:49 +0000)]
Revert "Merge branch 'arcpatch-D55094'"
This reverts commit
a9788dd6587d67c856df74eedff5a6ad34ce8320, reversing
changes made to
f1309ffebf718d16aec4fab83380556c660e2825.
unintended merge pushed
llvm-svn: 351095
Nirav Dave [Mon, 14 Jan 2019 18:44:32 +0000 (18:44 +0000)]
[MC][X86] Add test case for invalid use of "(%dx)" operand.
llvm-svn: 351094
Sanjay Patel [Mon, 14 Jan 2019 18:44:02 +0000 (18:44 +0000)]
[x86] lower extracted add/sub to horizontal vector math
add (extractelt (X, 0), extractelt (X, 1)) --> extractelt (hadd X, X), 0
This is the integer sibling to D56011.
There's an additional restriction to only to do this transform in the
case where we don't have extra extracts from the source vector. Without
that, we can fail to match larger horizontal patterns that are more
beneficial than this minimal case. An improvement to the more general
h-op lowering may allow us to remove the restriction here in a follow-up.
llvm-svn: 351093
David Callahan [Mon, 14 Jan 2019 18:35:43 +0000 (18:35 +0000)]
Merge branch 'arcpatch-D55094'
llvm-svn: 351092
Amara Emerson [Mon, 14 Jan 2019 18:32:09 +0000 (18:32 +0000)]
Revert "[VFS] Allow multiple RealFileSystem instances with independent CWDs."
This reverts commit r351079, r351069 and r351050 as it broken the greendragon bots on macOS.
llvm-svn: 351091
Nico Weber [Mon, 14 Jan 2019 18:30:35 +0000 (18:30 +0000)]
gn build: Unbreak mac build after r350977
llvm-svn: 351090
Dan Gohman [Mon, 14 Jan 2019 18:28:10 +0000 (18:28 +0000)]
[WebAssembly] Remove old builtins
This removes the old grow_memory and mem.grow-style builtins, leaving just
the memory.grow-style builtins.
Differential Revision: https://reviews.llvm.org/D56645
llvm-svn: 351089
Nico Weber [Mon, 14 Jan 2019 18:26:55 +0000 (18:26 +0000)]
gn build: Fix path to gn.py in docs
llvm-svn: 351088
Tom Stellard [Mon, 14 Jan 2019 18:25:35 +0000 (18:25 +0000)]
cmake: Don't install plugins used for examples or tests
Summary:
This patch drops install targets for LLVMHello.so,
TestPlugin.so, and BugpointPasses.so.
Reviewers: chandlerc, beanz, thakis, philip.pfaffe
Reviewed By: chandlerc
Subscribers: SquallATF, mgorny, llvm-commits
Differential Revision: https://reviews.llvm.org/D55965
llvm-svn: 351087
Dan Gohman [Mon, 14 Jan 2019 18:25:29 +0000 (18:25 +0000)]
[WebAssembly] Remove tests for old intrinsics.
This is a followup to r351084 which removes the tests for the old
intrinsic names.
llvm-svn: 351086
Nico Weber [Mon, 14 Jan 2019 18:24:44 +0000 (18:24 +0000)]
gn build: svn propset svn:executable on utils/gn/gn.py
llvm-svn: 351085
Dan Gohman [Mon, 14 Jan 2019 18:23:45 +0000 (18:23 +0000)]
[WebAssembly] Remove old intrinsics
This removes the old grow_memory and mem.grow-style intrinsics, leaving just
the memory.grow-style intrinsics.
Differential Revision: https://reviews.llvm.org/D56645
llvm-svn: 351084
Dan Gohman [Mon, 14 Jan 2019 18:20:30 +0000 (18:20 +0000)]
[WebAssembly] Add a release notes blurb
Bid farewell to LLVM_EXPERIMENTAL_TARGETS_TO_BUILD!
Differential Revision: https://reviews.llvm.org/D56648
llvm-svn: 351083
Kristina Brooks [Mon, 14 Jan 2019 18:16:51 +0000 (18:16 +0000)]
[Sema] Expose a control flag for integer to pointer ext warning
While building openJDK11u, it seems that some of the code in the
native core libraries make liberal use of integer to pointer
comparisons. We currently have no flag to disabled this warning.
This add such a flag.
Patch by Kader (abdoul-kader keita)
Differential Revision: https://reviews.llvm.org/D56241
llvm-svn: 351082
Haojian Wu [Mon, 14 Jan 2019 18:11:09 +0000 (18:11 +0000)]
[clangd] Add Limit parameter for xref.
Reviewers: sammccall
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Differential Revision: https://reviews.llvm.org/D56597
llvm-svn: 351081
Stella Stamenova [Mon, 14 Jan 2019 17:55:17 +0000 (17:55 +0000)]
[lldbsuite] Skip two more flaky tests on Windows
TestNamespaceLookup occasionally passes unexpectedly and TestExitDuringStep occasionally fails unexpectedly
llvm-svn: 351080
Sam McCall [Mon, 14 Jan 2019 17:51:10 +0000 (17:51 +0000)]
[VFS] Disable unix-assuming VFS test on windows
llvm-svn: 351079
Simon Pilgrim [Mon, 14 Jan 2019 17:49:11 +0000 (17:49 +0000)]
[X86] Add PR40306 shuffle test case
llvm-svn: 351078
Adrian Prantl [Mon, 14 Jan 2019 17:24:11 +0000 (17:24 +0000)]
Reapply r345008 "Split MachinePipeliner code into header and cpp files"
Split MachinePipeliner code into header and cpp files to allow
inheritance from SwingSchedulerDAG.
This reapplies https://reviews.llvm.org/D56084 after moving the
implementation of the dump functions into the .cpp files. This fixes a
linker error when building with Clang modules enables and local
submodule visibility disabled.
Original patch by Lama Saba <lama.saba@intel.com>!
llvm-svn: 351077
James Y Knight [Mon, 14 Jan 2019 17:16:55 +0000 (17:16 +0000)]
Remove NameLen argument from newly-introduced IR C APIs.
Normally, changing the function signatures of C APIs is disallowed,
but as these two are brand new last week, and haven't been released
yet, it is okay in this instance.
As per discussion in D56556, we will not add NameLen arguments to IR
building APIs, for the following reasons:
1. We do not want to deprecate all of the IR building APIs, just to add a
NameLen argument to each one.
2. Consistency is important, so adding it just to new ones is unfortunate.
3. The IR names are completely optional, useful for readability of IR
only. There is no value in ever supporting nul bytes.
Differential Revision: https://reviews.llvm.org/D56669
llvm-svn: 351076
Sam McCall [Mon, 14 Jan 2019 17:16:00 +0000 (17:16 +0000)]
[AST] Fix double-traversal of code in top-level lambdas in RAV(implicit = yes).
Summary:
Prior to r351069, lambda classes were traversed or not depending on the
{Function, Class, Namespace, TU} DeclContext containing them.
If it was a function (common case) they were not traversed.
If it was a namespace or TU (top-level lambda) they were traversed as part of
that DeclContext traversal.
r351069 "fixed" RAV to traverse these as part of the LambdaExpr, which is the
right place. But top-level lambdas are now traversed twice.
We fix that as blocks and block captures were apparently fixed in the past.
Maybe it would be nicer to avoid adding the lambda classes to the DeclContext
in the first place, but I can't work out the implications of that.
Reviewers: bkramer, klimek
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D56665
llvm-svn: 351075
Nirav Dave [Mon, 14 Jan 2019 17:09:45 +0000 (17:09 +0000)]
Reland "Refactor GetRegistersForValue. NFCI."
Remove over-strictification class membership check.
llvm-svn: 351074
Simon Pilgrim [Mon, 14 Jan 2019 15:43:34 +0000 (15:43 +0000)]
[DAGCombiner] Add (sub_sat x, x) -> 0 combine
llvm-svn: 351073
Simon Pilgrim [Mon, 14 Jan 2019 15:28:53 +0000 (15:28 +0000)]
[DAGCombiner] Enable sub saturation constant folding
llvm-svn: 351072
Simon Pilgrim [Mon, 14 Jan 2019 15:08:51 +0000 (15:08 +0000)]
[X86] Add sub saturation constant folding and self tests.
llvm-svn: 351071
Simon Pilgrim [Mon, 14 Jan 2019 14:16:24 +0000 (14:16 +0000)]
[DAGCombiner] Add add/sub saturation undef handling
Match ConstantFolding.cpp:
(add_sat x, undef) -> -1
(sub_sat x, undef) -> 0
llvm-svn: 351070
Sam McCall [Mon, 14 Jan 2019 14:13:24 +0000 (14:13 +0000)]
[VFS] Fix unused variable warning. NFC
llvm-svn: 351069
Petar Avramovic [Mon, 14 Jan 2019 14:12:43 +0000 (14:12 +0000)]
[MIPS GlobalISel] Fix release build make-check after r351046
Add 'REQUIRES: asserts' to test that uses debug output in
order to fix r351046 for buildbots that use release build.
llvm-svn: 351068
Simon Pilgrim [Mon, 14 Jan 2019 14:02:24 +0000 (14:02 +0000)]
[DAGCombiner] add saturation instructions are commutative
llvm-svn: 351067
Simon Pilgrim [Mon, 14 Jan 2019 13:47:07 +0000 (13:47 +0000)]
[X86] Add add/sub saturation undef tests.
llvm-svn: 351066
Aleksandr Urakov [Mon, 14 Jan 2019 13:08:13 +0000 (13:08 +0000)]
[Core] Use the implementation method GetAddressOf in ValueObjectConstResultChild
Summary:
This patch allows to retrieve an address object for `ValueObject`'s children
retrieved through e.g. `GetChildAtIndex` or `GetChildMemberWithName`. It just
uses the corresponding method of the implementation object `m_impl` to achieve
that.
Reviewers: zturner, JDevlieghere, clayborg, labath, serge-sans-paille
Reviewed By: clayborg
Subscribers: leonid.mashinskiy, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D56147
llvm-svn: 351065
Nico Weber [Mon, 14 Jan 2019 12:50:40 +0000 (12:50 +0000)]
gn build: Add gn.py wrapper script that adds --dotfile= and --root= parameters
Since people weren't enthused about moving the .gn file to the toplevel in
D56419, here's a script to make gn at least somewhat more pleasant to invoke
(useful for gn clean, gn args --list, gn desc, etc).
Differential Revision: https://reviews.llvm.org/D56565
llvm-svn: 351064
Nico Weber [Mon, 14 Jan 2019 12:42:35 +0000 (12:42 +0000)]
clang-cl: Fix help text for /O<flags>: '/O2y-' means '/O2 /Oy-', not '/O2 /y-'
Differential Revision: https://reviews.llvm.org/D56489
llvm-svn: 351062
Nico Weber [Mon, 14 Jan 2019 12:41:13 +0000 (12:41 +0000)]
clang-cl: Align help texts for /O1 and O2
Makes it a bit easier to see what exactly the difference is.
Also use "same as" instead of "equivalent to", because that's faster to read.
Differential Revision: https://reviews.llvm.org/D56488
llvm-svn: 351061
Simon Pilgrim [Mon, 14 Jan 2019 12:34:31 +0000 (12:34 +0000)]
[DAGCombiner] Enable add saturation constant folding
llvm-svn: 351060
Aleksandar Beserminji [Mon, 14 Jan 2019 12:28:51 +0000 (12:28 +0000)]
[mips] Optimize shifts for types larger than GPR size (mips2/mips3)
With this patch, shifts are lowered to optimal number of instructions
necessary to shift types larger than the general purpose register size.
This resolves PR/32293.
Thanks to Kyle Butt for reporting the issue!
Differential Revision: https://reviews.llvm.org/D56320
llvm-svn: 351059
Jeremy Morse [Mon, 14 Jan 2019 12:13:12 +0000 (12:13 +0000)]
[DebugInfo] Remove un-necessary logic from HoistThenElseCodeToIf
Following PR39807, the way in which SimplifyCFG hoists common code on
branch paths was fixed in r347782. However this left extra code hanging
around HoistThenElseCodeToIf that wasn't necessary and needlessly
complicated matters -- we no longer need to look up through the 'if'
basic block to find a location for hoisted 'select' insts, we can instead
use the location chosen by applyMergedLocation.
This patch deletes that extra logic, and updates a regression test to
reflect the new logic (selects get the merged location, not a previous
insts location).
Differential Revision: https://reviews.llvm.org/D55272
llvm-svn: 351058
Simon Pilgrim [Mon, 14 Jan 2019 12:12:42 +0000 (12:12 +0000)]
[DAGCombiner] Add add saturation constant folding tests.
Exposes an issue with sadd_sat for computeOverflowKind, so I've disabled it for now.
llvm-svn: 351057
Diana Picus [Mon, 14 Jan 2019 12:04:08 +0000 (12:04 +0000)]
[ARM GlobalISel] Import MOVi32imm into GlobalISel
Make it possible for TableGen to produce code for selecting MOVi32imm.
This allows reasonably recent ARM targets to select a lot more constants
than before.
We achieve this by adding GISelPredicateCode to arm_i32imm. It's
impossible to use the exact same code for both DAGISel and GlobalISel,
since one uses "Subtarget->" and the other "STI." to refer to the
subtarget. Moreover, in GlobalISel we don't have ready access to the
MachineFunction, so we need to add a bit of code for obtaining it from
the instruction that we're selecting. This is also the reason why it
needs to remain a PatLeaf instead of the more specific IntImmLeaf.
llvm-svn: 351056
Simon Pilgrim [Mon, 14 Jan 2019 11:56:59 +0000 (11:56 +0000)]
[SelectionDAG] Add type sanity assertions for add/sub saturation node creation.
llvm-svn: 351055
David Stuttard [Mon, 14 Jan 2019 11:55:24 +0000 (11:55 +0000)]
[AMDGPU] Add support for TFE/LWE in image intrinsics. 2nd try
TFE and LWE support requires extra result registers that are written in the
event of a failure in order to detect that failure case.
The specific use-case that initiated these changes is sparse texture support.
This means that if image intrinsics are used with either option turned on, the
programmer must ensure that the return type can contain all of the expected
results. This can result in redundant registers since the vector size must be a
power-of-2.
This change takes roughly 6 parts:
1. Modify the instruction defs in tablegen to add new instruction variants that
can accomodate the extra return values.
2. Updates to lowerImage in SIISelLowering.cpp to accomodate setting TFE or LWE
(where the bulk of the work for these instruction types is now done)
3. Extra verification code to catch cases where intrinsics have been used but
insufficient return registers are used.
4. Modification to the adjustWritemask optimisation to account for TFE/LWE being
enabled (requires extra registers to be maintained for error return value).
5. An extra pass to zero initialize the error value return - this is because if
the error does not occur, the register is not written and thus must be zeroed
before use. Also added a new (on by default) option to ensure ALL return values
are zero-initialized that is required for sparse texture support.
6. Disable the inst_combine optimization in the presence of tfe/lwe (later TODO
for this to re-enable and handle correctly).
There's an additional fix now to avoid a dmask=0
For an image intrinsic with tfe where all result channels except tfe
were unused, I was getting an image instruction with dmask=0 and only a
single vgpr result for tfe. That is incorrect because the hardware
assumes there is at least one vgpr result, plus the one for tfe.
Fixed by forcing dmask to 1, which gives the desired two vgpr result
with tfe in the second one.
The TFE or LWE result is returned from the intrinsics using an aggregate
type. Look in the test code provided to see how this works, but in essence IR
code to invoke the intrinsic looks as follows:
%v = call {<4 x float>,i32} @llvm.amdgcn.image.load.1d.v4f32i32.i32(i32 15,
i32 %s, <8 x i32> %rsrc, i32 1, i32 0)
%v.vec = extractvalue {<4 x float>, i32} %v, 0
%v.err = extractvalue {<4 x float>, i32} %v, 1
This re-submit of the change also includes a slight modification in
SIISelLowering.cpp to work-around a compiler bug for the powerpc_le
platform that caused a buildbot failure on a previous submission.
Differential revision: https://reviews.llvm.org/D48826
Change-Id: If222bc03642e76cf98059a6bef5d5bffeda38dda
Work around for ppcle compiler bug
Change-Id: Ie284cf24b2271215be1b9dc95b485fd15000e32b
llvm-svn: 351054
Anastasia Stulova [Mon, 14 Jan 2019 11:44:22 +0000 (11:44 +0000)]
[OpenCL] Set generic addr space of 'this' in special class members.
Set address spaces of 'this' param correctly for implicit special
class members.
This also changes initialization conversion sequence to separate
address space conversion from other qualifiers in case of binding
reference to a temporary. In this case address space conversion
should happen after the binding (unlike for other quals). This is
needed to materialize it correctly in the alloca address space.
Initial patch by Mikael Nilssoni!
Differential Revision: https://reviews.llvm.org/D56066
llvm-svn: 351053
Kadir Cetinkaya [Mon, 14 Jan 2019 11:24:07 +0000 (11:24 +0000)]
[clangd] Fix a reference invalidation
Summary: Fix for the breakage in http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/52811/consoleFull#-
42777206a1ca8a51-895e-46c6-af87-
ce24fa4cd561
Subscribers: ilya-biryukov, ioeric, MaskRay, jkorous, arphaman, cfe-commits
Differential Revision: https://reviews.llvm.org/D56656
llvm-svn: 351052
Sam McCall [Mon, 14 Jan 2019 11:06:48 +0000 (11:06 +0000)]
[clangd] Unlink VFS working dir from OS working dir.
A lot of our previous FS manipulation was thread-unsafe in practice with
the RealFS implementation.
This switches to a different RealFS mode where path-manipulation is used
to simulate multiple working dirs.
r351050 both added this mode and removed the cache. If we want to
move back to the old implementation we need to put the cache back.
llvm-svn: 351051
Sam McCall [Mon, 14 Jan 2019 10:56:35 +0000 (10:56 +0000)]
[VFS] Allow multiple RealFileSystem instances with independent CWDs.
Summary:
Previously only one RealFileSystem instance was available, and its working
directory is shared with the process. This doesn't work well for multithreaded
programs that want to work with relative paths - the vfs::FileSystem is assumed
to provide the working directory, but a thread cannot control this exclusively.
The new vfs::createPhysicalFileSystem() factory copies the process's working
directory initially, and then allows it to be independently modified.
This implementation records the working directory path, and glues it to relative
paths to provide the correct absolute path to the sys::fs:: functions.
This will give different results in unusual situations (e.g. the CWD is moved).
The main alternative is the use of openat(), fstatat(), etc to ask the OS to
resolve paths relative to a directory handle which can be kept open. This is
more robust. There are two reasons not to do this initially:
1. these functions are not available on all supported Unixes, and are somewhere
between difficult and unavailable on Windows. So we need a path-based
fallback anyway.
2. this would mean also adding support at the llvm::sys::fs level, which is a
larger project. My clearest idea is an OS-specific `BaseDirectory` object
that can be optionally passed to functions there. Eventually this could be
backed by either paths or a fd where openat() is supported.
This is a large project, and demonstrating here that a path-based fallback
works is a useful prerequisite.
There is some subtlety to the path-manipulation mechanism:
- when setting the working directory, both Specified=makeAbsolute(path) and
Resolved=realpath(path) are recorded. These may differ in the presence of
symlinks.
- getCurrentWorkingDirectory() and makeAbsolute() use Specified - this is
similar to the behavior of $PWD and sys::path::current_path
- IO operations like openFileForRead use Resolved. This is similar to the
behavior of an openat() based implementation, that doesn't see changes
in symlinks.
There may still be combinations of operations and FS states that yield unhelpful
behavior. This is hard to avoid with symlinks and FS abstractions :(
The caching behavior of the current working directory is removed in this patch.
getRealFileSystem() is now specified to link to the process CWD, so the caching
is incorrect.
The user who needed this so far is clangd, which will immediately switch to
createPhysicalFileSystem().
Reviewers: ilya-biryukov, bkramer, labath
Subscribers: ioeric, kadircet, kristina, llvm-commits
Differential Revision: https://reviews.llvm.org/D56545
llvm-svn: 351050
Francis Visoiu Mistrih [Mon, 14 Jan 2019 10:55:55 +0000 (10:55 +0000)]
Replace "no-frame-pointer-*" function attributes with "frame-pointer"
Part of the effort to refactoring frame pointer code generation. We used
to use two function attributes "no-frame-pointer-elim" and
"no-frame-pointer-elim-non-leaf" to represent three kinds of frame
pointer usage: (all) frames use frame pointer, (non-leaf) frames use
frame pointer, (none) frame use frame pointer. This CL makes the idea
explicit by using only one enum function attribute "frame-pointer"
Option "-frame-pointer=" replaces "-disable-fp-elim" for tools such as
llc.
"no-frame-pointer-elim" and "no-frame-pointer-elim-non-leaf" are still
supported for easy migration to "frame-pointer".
tests are mostly updated with
// replace command line args ‘-disable-fp-elim=false’ with ‘-frame-pointer=none’
grep -iIrnl '\-disable-fp-elim=false' * | xargs sed -i '' -e "s/-disable-fp-elim=false/-frame-pointer=none/g"
// replace command line args ‘-disable-fp-elim’ with ‘-frame-pointer=all’
grep -iIrnl '\-disable-fp-elim' * | xargs sed -i '' -e "s/-disable-fp-elim/-frame-pointer=all/g"
Patch by Yuanfang Chen (tabloid.adroit)!
Differential Revision: https://reviews.llvm.org/D56351
llvm-svn: 351049
Sam McCall [Mon, 14 Jan 2019 10:40:41 +0000 (10:40 +0000)]
[clang-tidy] update FunctionSizeCheck for D56444
Reviewers: JonasToth, aaron.ballman
Subscribers: xazax.hun, cfe-commits
Differential Revision: https://reviews.llvm.org/D56552
llvm-svn: 351048
Sam McCall [Mon, 14 Jan 2019 10:31:42 +0000 (10:31 +0000)]
[AST] RecursiveASTVisitor visits lambda classes when implicit visitation is on.
Summary:
This fixes ASTContext's parent map for nodes in such classes (e.g. operator()).
https://bugs.llvm.org/show_bug.cgi?id=39949
This also changes the observed shape of the AST for implicit RAVs.
- this includes AST MatchFinder: cxxRecordDecl() now matches lambda classes,
functionDecl() matches the call operator, and the parent chain is body -> call
operator -> lambda class -> lambdaexpr rather than body -> lambdaexpr.
- this appears not to matter for the ASTImporterLookupTable builder
- this doesn't matter for the other RAVs in-tree.
In order to do this, we remove the TraverseLambdaBody hook. The problem is it's
hard/weird to ensure this hook is called when traversing via the implicit class.
There were just two users of this hook in-tree, who use it to skip bodies.
I replaced these with explicitly traversing the captures only. Another approach
would be recording the bodies when the lambda is visited, and then recognizing
them later.
I'd be open to suggestion on how to preserve this hook, instead.
Reviewers: aaron.ballman, JonasToth
Subscribers: cfe-commits, rsmith, jdennett
Differential Revision: https://reviews.llvm.org/D56444
llvm-svn: 351047
Petar Avramovic [Mon, 14 Jan 2019 10:27:05 +0000 (10:27 +0000)]
[MIPS GlobalISel] Add pre legalizer combiner pass
Introduce GlobalISel pre legalizer pass for MIPS.
It will be used to cope with instructions that require
combining before legalization.
Differential Revision: https://reviews.llvm.org/D56269
llvm-svn: 351046
Max Kazantsev [Mon, 14 Jan 2019 10:26:26 +0000 (10:26 +0000)]
[BasicBlockUtils] Generalize DeleteDeadBlock to deal with multiple dead blocks
Utility function `DeleteDeadBlock` expects that all predecessors of a block being
deleted are already deleted, with the exception of single-block loop. It makes it
hard to use for deletion of a set of blocks that may contain cyclic dependencies.
The is no correct order of invocations of this function that does not produce
dangling pointers on already deleted blocks.
This patch introduces a generalized version of this function `DeleteDeadBlocks`
that allows us to remove multiple blocks at once, even if there are cycles among
them. The only requirement is that no block being deleted should have a predecessor
that is not being deleted.
The logic of `DeleteDeadBlocks` is following:
for each block
create relevant DT updates;
remove all instructions (replace with undef if needed);
replace terminator with unreacheable;
apply DT updates;
for each block
delete block;
Therefore, `DeleteDeadBlock` becomes a particular case of
the general algorithm called for a single block.
Differential Revision: https://reviews.llvm.org/D56120
Reviewed By: skatkov
llvm-svn: 351045
Daniel Cederman [Mon, 14 Jan 2019 10:15:20 +0000 (10:15 +0000)]
[Sparc] Add Sparc V8 support
Summary:
Adds the register class implementation for Sparc.
Adds support for DW_CFA_GNU_window_save.
Adds save and restore context functionality.
Adds getArch() function to each Registers_ class to be able to separate
between DW_CFA_AARCH64_negate_ra_state and DW_CFA_GNU_window_save which
are both represented by the same constant.
On Sparc the return address is the address of the call instruction, so
an offset needs to be added when returning to skip the call instruction
and its delay slot. If the function returns a struct it is also necessary
to skip one extra instruction on Sparc V8.
Reviewers: jyknight, mclow.lists, mstorsjo, compnerd
Reviewed By: jyknight, compnerd
Subscribers: jgorbe, mgorny, christof, llvm-commits, fedor.sergeev, JDevlieghere, ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D55763
llvm-svn: 351044