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
Dmitry Venikov [Mon, 14 Jan 2019 10:10:51 +0000 (10:10 +0000)]
[llvm-symbolizer] Add -addresses, -a as aliases for -print-address
Summary: Provides -addresses, -a as aliases for -print-address. Motivation: https://bugs.llvm.org/show_bug.cgi?id=40067.
Reviewers: jhenderson, ruiu, rnk, fjricci
Reviewed By: jhenderson
Subscribers: rupprecht, llvm-commits
Differential Revision: https://reviews.llvm.org/D56635
llvm-svn: 351043
Thomas Preud'homme [Mon, 14 Jan 2019 10:10:48 +0000 (10:10 +0000)]
Fix defines.txt
Support arbitrary suffix when matching FileCheck executable name in
defines.txt to successfully match FileCheck.EXE on Microsoft Windows.
llvm-svn: 351042
Sam McCall [Mon, 14 Jan 2019 10:01:17 +0000 (10:01 +0000)]
[clangd] Index main-file symbols (bug 39761)
Patch by Nathan Ridge!
Differential Revision: https://reviews.llvm.org/D55185
llvm-svn: 351041
Diana Picus [Mon, 14 Jan 2019 09:45:49 +0000 (09:45 +0000)]
[asan] Add fallback for Thumb after r350139
This reverts r350806 which marked some tests as UNSUPPORTED on ARM and
instead reintroduces the old code path only for Thumb, since that seems
to be the only target that broke.
It would still be nice to find the root cause of the breakage, but with
the branch point for LLVM 8.0 scheduled for next week it's better to put
things in a stable state while we investigate.
Differential Revision: https://reviews.llvm.org/D56594
llvm-svn: 351040
Thomas Preud'homme [Mon, 14 Jan 2019 09:29:10 +0000 (09:29 +0000)]
Detect incorrect FileCheck variable CLI definition
Summary:
While the backend code of FileCheck relies on definition of variable
from the command-line to have an equal sign '=' and a variable name
before that, the frontend does not actually enforce it. This leads to
FileCheck crashing when invoked with invalid syntax for the -D option.
This patch adds the missing validation in the frontend. It also makes
the -D option an AlwaysPrefix option to be able to detect -D=FOO as
being a define without variable and -D as missing its value.
Copyright:
- Linaro (changes in version 2 of revision D55940)
- GraphCore (changes in later versions)
Reviewers: jdenny
Subscribers: JonChesterfield, hiraditya, kristina, probinson,
llvm-commits
Differential Revision: https://reviews.llvm.org/D55940
llvm-svn: 351039
Thomas Preud'homme [Mon, 14 Jan 2019 09:28:53 +0000 (09:28 +0000)]
Add support for prefix-only CLI options
Summary:
Add support for options that always prefix their value, giving an error
if the value is in the next argument or if the option is given a value
assignment (ie. opt=val). This is the desired behavior for the -D option
of FileCheck for instance.
Copyright:
- Linaro (changes in version 2 of revision D55940)
- GraphCore (changes in later versions and introduced when creating
D56549)
Reviewers: jdenny
Subscribers: llvm-commits, probinson, kristina, hiraditya,
JonChesterfield
Differential Revision: https://reviews.llvm.org/D56549
llvm-svn: 351038
Stefan Granitz [Mon, 14 Jan 2019 09:24:50 +0000 (09:24 +0000)]
[CMake] LLVM exports utility targets since r350959, so we can use them without standalone-checks now
llvm-svn: 351037
Craig Topper [Mon, 14 Jan 2019 08:46:51 +0000 (08:46 +0000)]
[X86] Remove mask parameter from avx512 pmultishiftqb intrinsics. Use select in IR instead.
Fixes PR40259
llvm-svn: 351036
Craig Topper [Mon, 14 Jan 2019 08:46:45 +0000 (08:46 +0000)]
[X86] Remove mask parameter from avx512 pmultishiftqb intrinsics. Use select in IR instead.
Fixes PR40259
llvm-svn: 351035
Craig Topper [Mon, 14 Jan 2019 08:46:42 +0000 (08:46 +0000)]
[X86] Add new test file that was supposed to go with r351028.
llvm-svn: 351034
Craig Topper [Mon, 14 Jan 2019 02:59:08 +0000 (02:59 +0000)]
[X86] Update type profile for DBPSADBW to indicate the immediate is an i8 not just any int.
Removes some type checks from X86GenDAGISel.inc
llvm-svn: 351033
Craig Topper [Mon, 14 Jan 2019 01:56:59 +0000 (01:56 +0000)]
[X86] Remove unused intrinsic handlers. NFC
llvm-svn: 351032
Craig Topper [Mon, 14 Jan 2019 01:44:09 +0000 (01:44 +0000)]
[X86] Remove FPCLASS intrinsic handler. Use INTR_TYPE_2OP instead. NFC
llvm-svn: 351031
Nico Weber [Mon, 14 Jan 2019 00:45:27 +0000 (00:45 +0000)]
lld/include/lld/Core/TODO.txt
- fix minor grammar stuff (I'm not a native speaker either, but it's hopefully a net improvement)
- mention that lld/coff is used in production
- update AArch64, ARM to production quality
- remove lld/include/lld/Core/TODO.txt which looks outdated
Differential Revision: https://reviews.llvm.org/D56600
llvm-svn: 351030
Craig Topper [Mon, 14 Jan 2019 00:03:55 +0000 (00:03 +0000)]
[X86] Remove mask parameter from vpshufbitqmb intrinsics. Change result to a vXi1 vector.
We'll do the scalar<->vXi1 conversions with bitcasts in IR.
Fixes PR40258
llvm-svn: 351029
Craig Topper [Mon, 14 Jan 2019 00:03:50 +0000 (00:03 +0000)]
[X86] Remove mask parameter from vpshufbitqmb intrinsics. Change result to a vXi1 vector.
The input mask can be represented with an AND in IR.
Fixes PR40258
llvm-svn: 351028
Petr Hosek [Sun, 13 Jan 2019 22:15:37 +0000 (22:15 +0000)]
[libcxx] Mark do_open, do_get and do_close parameters unused when catopen is missing
When catopen is missing, do_open, do_get and do_close end up being
no-op, and as such their parameters will be unused which triggers a
warning/error when building with -Wunused-parameter.
Differential Revision: https://reviews.llvm.org/D56023
llvm-svn: 351027
Simon Pilgrim [Sun, 13 Jan 2019 22:08:26 +0000 (22:08 +0000)]
[DAGCombiner] If add_sat(x,y) can't overflow -> add(x,y)
NOTE: We need more powerful signed overflow detection in computeOverflowKind
llvm-svn: 351026
Simon Pilgrim [Sun, 13 Jan 2019 21:53:12 +0000 (21:53 +0000)]
Fix unused variable warning. NFCI.
llvm-svn: 351025
Simon Pilgrim [Sun, 13 Jan 2019 21:50:24 +0000 (21:50 +0000)]
[DAGCombiner] Some very basic add/sub saturation combines.
Handle combines with zero and constant canonicalization for adds.
llvm-svn: 351024
Simon Pilgrim [Sun, 13 Jan 2019 21:21:46 +0000 (21:21 +0000)]
[X86] Add some basic add/sub saturation combine tests.
The actual combines will be added in a future commit.
llvm-svn: 351023
Craig Topper [Sun, 13 Jan 2019 19:33:30 +0000 (19:33 +0000)]
[LegalizeDAG] Remove 'NeedInvert' code from expansion of BR_CC. Replace with an assert.
I accidentally triggered this code while doing some experiments and it doesn't look lke it could possibly work.
It calls 'getNOT' on a node that should be a CondCode.
I think to do this right we would need to swap the branch target and the fallthrough target. But that's not easy to do. Or we could create an explicit SetCC and feed that into a new BR_CC?
llvm-svn: 351022
Nikita Popov [Sun, 13 Jan 2019 16:41:26 +0000 (16:41 +0000)]
[X86] Rename overly verbose method; NFC
As suggested on D56636.
llvm-svn: 351021
James Y Knight [Sun, 13 Jan 2019 16:09:28 +0000 (16:09 +0000)]
Remove TypeBuilder.h, and fix the few locations using it.
This shortcut mechanism for creating types was added 10 years ago, but
has seen almost no uptake since then, neither internally nor in
external projects.
The very small number of characters saved by using it does not seem
worth the mental overhead of an additional type-creation API, so,
delete it.
Differential Revision: https://reviews.llvm.org/D56573
llvm-svn: 351020
Roman Lebedev [Sun, 13 Jan 2019 12:54:34 +0000 (12:54 +0000)]
[OpenMP] Fix LIBOMP_USE_DEBUGGER=ON build (PR38612)
Summary:
Two things:
1. Those two variables had the wrong sigdness, which was resulting in "sign mismatch in comparison" warning.
2. The whole `kmp_debugger.cpp` wasn't being built, or rather, it was being built as-if `USE_DEBUGGER` was off,
thus, nothing provided the definition of `__kmp_omp_debug_struct_info`, `__kmp_debugging`.
Makes sense, because `USE_DEBUGGER` is set in `kmp_config.h`, which is not included explicitly.
It is included by `kmp.h`, but that one is only included inside of the `#if USE_DEBUGGER` block..
I *think* this is the only source file with this issue,
everything else seem to `#include` either `kmp.h` or `kmp_config.h`.
The alternative solution would be to add `add_compile_options(-include kmp_config.h)` in CMake.
I did verify that `__kmp_omp_debug_struct_info` becomes available with this patch.
Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=38612 | PR38612 ]].
Reviewers: AndreyChurbanov, jlpeyton, Hahnfeld
Reviewed By: jlpeyton
Subscribers: guansong, jfb, openmp-commits
Tags: #openmp
Differential Revision: https://reviews.llvm.org/D55783
llvm-svn: 351019
Craig Topper [Sun, 13 Jan 2019 02:59:59 +0000 (02:59 +0000)]
[X86] Add more ISD nodes to handle masked versions of VCVT(T)PD2DQZ128/VCVT(T)PD2UDQZ128 which only produce 2 result elements and zeroes the upper elements.
We can't represent this properly with vselect like we normally do. We also have to update the instruction definition to use a VK2WM mask instead of VK4WM to represent this.
Fixes another case from PR34877
llvm-svn: 351018
Craig Topper [Sun, 13 Jan 2019 02:59:57 +0000 (02:59 +0000)]
[X86] Add X86ISD::VMFPROUND to handle the masked case of VCVTPD2PSZ128 which only produces 2 result elements and zeroes the upper elements.
We can't represent this properly with vselect like we normally do. We also have to update the instruction definition to use a VK2WM mask instead of VK4WM to represent this.
Fixes another case from PR34877.
llvm-svn: 351017
Benjamin Kramer [Sat, 12 Jan 2019 18:36:22 +0000 (18:36 +0000)]
Give helper classes/functions local linkage. NFC.
llvm-svn: 351016
Stephen Kelly [Sat, 12 Jan 2019 17:07:05 +0000 (17:07 +0000)]
NFC: Make utility private
No callers are external to the class anymore.
llvm-svn: 351015
Stephen Kelly [Sat, 12 Jan 2019 16:53:27 +0000 (16:53 +0000)]
[ASTDump] NFC: Move dump of individual Stmts to TextNodeDumper
Reviewers: aaron.ballman
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D55340
llvm-svn: 351014