| Commit message (Collapse) | Author | Age | Files | Lines |
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This reverts commit c28f81797084b8416ff5be4f9e79000a9741ca6a.
This reverts commit 7e79b64642486f510f7872174eb831df68d65b84.
Looks like there is more work to be done on this patch. I've spoken to
the author and for the time being we will revert to keep the buildbots
green.
llvm-svn: 361086
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I was looking at the current implementation of SourceInitFile and there
were a few things that made this function hard to read:
* The code to find the ~/.lldbinit file is duplicated across the cwd
and non-cwd branch.
* The ./.lldbinit is once computed by resolving .lldbinit and once by
resolving ./.lldbinit.
* It wasn't clear to me what happened when you're sourcing the
.lldbinit file in the current working directory. Apparently we do
nothing when we property to control that is set to warn (makes sense)
and we don't care when the property is set to true (debatable).
* There were at least two branches where the status of the
CommandReturnObject were not set.
This patch attempts to simplify that code.
Differential revision: https://reviews.llvm.org/D61994
llvm-svn: 361080
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This is a general fix for the ConnectionFileDescriptor class but my main
motivation was to make lldb-server working with IPv6.
The connect URI can use square brackets ([]) to wrap the interface part
of the URI (e.g.: <scheme>://[<interface>]:<port>). For IPv6 addresses
this is a must since its ip can include colons and it will overlap with
the port colon otherwise. The URIParser class parses the square brackets
correctly but the ConnectionFileDescriptor doesn't generate them for
IPv6 addresses making it impossible to connect to the gdb server when
using this protocol.
How to reproduce the issue:
$ lldb-server p --server --listen [::1]:8080
...
$ lldb
(lldb) platform select remote-macosx
(lldb) platform connect connect://[::1]:8080
(lldb) platform process -p <pid>
error: unable to launch a GDB server on 'computer'
The server was actually launched we were just not able to connect to it.
With this fix lldb will correctly connect. I fixed this by wrapping the
ip portion with [].
Differential Revision: https://reviews.llvm.org/D61833
Patch by António Afonso <antonio.afonso@gmail.com>
llvm-svn: 361079
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Get*AtIndex() can return nullptr. This only happens in the swift
REPL support, so it's hard to test upstream.
<rdar://problem/50875178>
llvm-svn: 361078
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The change that was committed for this used \\s to match spaces which does not work correctly on all platforms. Using [:space:] makes the test pass on both Linux and Windows
llvm-svn: 361064
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llvm-svn: 361010
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Summary:
The previous attempt and moving section handling over to DWARFContext
(D59611) failed because it did not take into account the dwo sections
correctly. All DWARFContexts (even those in SymbolFileDWARFDwo) used the
main module for loading the sections, but in the dwo scenario some
sections should come from the dwo file.
This patch fixes that by making the DWARFContext aware of whether it a
dwo context or a regular one. A dwo context gets two sections lists, and
it knows where to look for a particular type of a section. This isn't
fully consistent with how the llvm DWARFContext behaves, because that
one leaves it up to the user to know whether it should ask for a dwo
section or not. However, for the time being, it seems useful to have a
single entity which knows how to peice together the debug info in dwo
and non-dwo scenarios. The rough roadmap for the future is:
- port over the rest of the sections to DWARFContext
- find a way to get rid of SymbolFileDWARFDwo/Dwp/DwpDwo. This will
likely involve adding the ability for the DWARFContext to spawn
dwo sub-contexts, similarly to how it's done in llvm.
- get rid of the special handling of the "dwo" contexts by making
sure everything knows whether it should ask for the .dwo version of
the section or not (similarly to how llvm's DWARFUnits do that)
To demonstrate how the DWARFContext should behave in this new world, I
port the debug_info section (which is debug_info.dwo in the dwo file)
handling to DWARFContext. The rest of the sections will come in
subsequent patches.
Reviewers: aprantl, clayborg, JDevlieghere
Subscribers: zturner, lldb-commits
Differential Revision: https://reviews.llvm.org/D62012
llvm-svn: 361000
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Previously "bt all " would've failed as the regex didn't match
them.
Over the shoulder review by Jonas Devlieghere.
<rdar://problem/50824935>
llvm-svn: 360966
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llvm-svn: 360945
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This addresses post-commit review feedback for https://reviews.llvm.org/D62015.
llvm-svn: 360930
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This fixes an unintended regression introduced by
https://reviews.llvm.org/D61451 by making sure the Objective-C runtime
is also tried when the "correct" language runtime failed to return an
object description.
rdar://problem/50791055
Differential Revision: https://reviews.llvm.org/D62015
llvm-svn: 360929
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This doesn't make sense on platforms other than 64 bit.
llvm-svn: 360916
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Summary:
There are several reasons for doing this:
- generally, there's no reason to differentiate between a section being
absent and it being present, but empty
- it matches more closely what llvm DWARF parser is doing (which also
doesn't differentiate the two cases)
- SymbolFileDWARF also doesn't differentiate the two cases, which makes
porting the rest of sections easier
- it fixes a bug in how the return-null-if-empty logic was implemented
(it returned nullptr only the second time we tried to get the
debug_aranges section), which meant that we hit an assert when trying
to parse an empty-but-present section
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: zturner, lldb-commits
Differential Revision: https://reviews.llvm.org/D61942
llvm-svn: 360874
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Summary:
This patch adds the ability to precisely address debug info in
situations when a single file can have more than one debug-info-bearing
sections (as is the case with type units in DWARF v4).
The changes here can be classified into roughly three categories:
- the code which addresses a debug info by offset gets an additional
argument, which specifies the section one should look into.
- the DIERef class also gets an additional member variable specifying
the section. This way, code dealing with DIERefs can know which
section is the object referring to.
- the user_id_t encoding steals one bit from the dwarf_id field to store
the section. This means the total number of separate object files
(apple .o, or normal .dwo) is limited to 2 billion, but that is fine
as it's not possible to hit that number without switching to DWARF64
anyway.
This patch is functionally equivalent to (and inspired by) the two
patches (D61503 and D61504) by Jan Kratochvil, but there are differences
in the implementation:
- it uses an enum instead of a bool flag to differentiate the sections
- it increases the size of DIERef struct instead of reducing the amount
of addressable debug info
- it sets up DWARFDebugInfo to store the units in a single vector
instead of two. This sets us up for the future in which type units can
also live in the debug_info section, and I believe it's cleaner
because there's no need for unit index remapping
There are no tests with this patch as this is essentially NFC until
we start parsing type units from the debug_types section.
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: arphaman, jankratochvil, lldb-commits
Differential Revision: https://reviews.llvm.org/D61908
llvm-svn: 360872
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While here, update some ppc64le specific check to isPPC64(), if it
applies to big-endian as well, in the hope that it will ease the support
of big-endian if people are interested in this area. The big-endian
variant is used by at least FreeBSD, Gentoo Linux, Adélie Linux, and
Void Linux.
llvm-svn: 360868
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llvm-svn: 360865
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So far dw_offset_t was global for the whole SymbolFileDWARF but with
.debug_types the same dw_offset_t may mean two different things depending on
its section (=CU). So references now return whole new referenced DWARFDIE
instead of just dw_offset_t.
This means that some functions have to now handle 16 bytes instead of 8 bytes
but I do not see that anywhere performance critical.
Differential Revision: https://reviews.llvm.org/D61502
llvm-svn: 360795
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It's the simplest and gives the cleanest semantics.
llvm-svn: 360762
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Summary:
This is the final phase of the refactoring towards using llvm::Expected
and llvm::Error in the ASTImporter API.
This involves the following:
- remove old Import functions which returned with a pointer,
- use the Import_New functions (which return with Err or Expected) everywhere
and handle their return value
- rename Import_New functions to Import
This affects both Clang and LLDB.
Reviewers: shafik, teemperor, aprantl, a_sidorin, balazske, a.sidorin
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits, lldb-commits
Tags: #clang, #lldb
Differential Revision: https://reviews.llvm.org/D61438
llvm-svn: 360760
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The class has been converted to use DWARFUnit, but a number of uses of
the words compile unit remained. This removes all such references
Get/SetCompileUnit becomes Get/SetUnit, and m_cu becomes m_unit.
llvm-svn: 360754
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Replaces assert() with static_assert() if the condition is can be
evaluated at compile time.
llvm-svn: 360753
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Applies modernize-use-equals-delete to the LLDB code base and removes
the now redundant comments.
llvm-svn: 360751
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Summary:
I don't think there's a good reason for this behavior to be considered
ObjC-specific. We can generalize this.
Differential Revision: https://reviews.llvm.org/D61776
llvm-svn: 360741
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apple and manual indexing code were creating a DIERef in a bunch of
places. Though the code itself is not much, it is also easy to simplify
by factoring out the DIERef creation. In HashedNameToDIE I create a
conversion operator from DIEInfo to DIERef, and in ManualDWARFIndex I
just create the DIERef in a global variable up-front.
This also reduces the diff in follow-up patches which change how DIERefs
are constructed.
llvm-svn: 360669
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Reviewed By: labath
Differential Revision: https://reviews.llvm.org/D61883
llvm-svn: 360654
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Reviewed By: JDevlieghere
Differential Revision: https://reviews.llvm.org/D61844
llvm-svn: 360646
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Before this change we were overriding the launch info environment with
the target environment. This meant that the environment variables passed
to `process launch --environment <>` were lost. Instead of replacing the
environment, we should merge them.
Differential revision: https://reviews.llvm.org/D61864
llvm-svn: 360612
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llvm-svn: 360611
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FindFunctions() in order to find a lambdas operator()() but using FindSymbolsMatchingRegExAndType() is cheaper and if we also anchor the regex using ^ this adds some additional performance gains.
Differential Revision: https://reviews.llvm.org/D61759
llvm-svn: 360599
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It serves no purpose as one can always invoke the const version instead.
llvm-svn: 360583
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Summary:
This patch implements the GetUnwindPlan interface (added in the previous
patch) for SymbolFileBreakpad, and uses it to generate unwind plans from
STACK CFI records in breakpad files.
We first perform a light-weight parse of the breakpad in order to build
up a map of regions covered by the unwind info so that we can later jump
to the right record when we need to unwind a specific function.
The actual parsing is relatively straight-forward, as the STACK CFI records
are just another (text) form of the eh_frame unwind instructions, and
the same goes for lldb's UnwindPlans. The newly-introduced
PostfixExpression API is used to convert the breakpad postfix
expressions into DWARF. The generated dwarf expressions are stored in a
BumpPtrAllocator, as the UnwindPlan does not take ownership of the
expression data it references (usually this is static data in an object
file, so special ownership is needed).
At this moment the generated unwind plans aren't used in the actual
unwind machinery (only in the image show-unwind command), but that is
coming in a separate patch.
Reviewers: amccarth, clayborg, markmentovai
Subscribers: aprantl, jasonmolenda, lldb-commits
Differential Revision: https://reviews.llvm.org/D61733
llvm-svn: 360574
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Summary:
This patch implements missing case in PdbAstBuilder::CreateType for
LF_MFUNCTION. This is necessary, for example, in stack unwinding of struct
methods.
Reviewers: amccarth, aleksandr.urakov
Reviewed By: amccarth
Subscribers: abidh, teemperor, lldb-commits, leonid.mashinskiy
Differential Revision: https://reviews.llvm.org/D61128
llvm-svn: 360569
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Summary:
Instead of using the offset of the contained compile unit, we use it's
ID. The goal of this change is two-fold:
- free up space in the user_id_t representation to enable storing the
debug-info-carrying section (debug_types/debug_info) without
decreasing the amount of debug info we can address (as would be the
case with D61503).
- be a step towards supporting DWO files containing more than one unit
(important for debug_types+dwo, but can also happen with regular
dwo+lto). For this part to fully work we'd still need to add a way to
lookup the SymbolFileDWO without going through GetCompileUnitAtIndex,
but making sure things don't accidentally work because the SymbolFile
ID is the same as compile unit offset is a step towards that.
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: mehdi_amini, dexonsmith, tberghammer, jankratochvil, lldb-commits
Differential Revision: https://reviews.llvm.org/D61783
llvm-svn: 360565
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llvm-svn: 360554
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Summary:
Breakpoint shouldn't need to depend on any specific details from a
programming language. Currently the only language-specific detail it takes
advantage of are the different qualified names an objective-c method name might
have when adding a name lookup. This is reasonably generalizable.
The current method name I introduced is "GetVariantMethodNames", which I'm not
particularly tied to. If you have a better suggestion, please do let me know.
Reviewers: JDevlieghere, jingham, clayborg
Subscribers: mgorny, lldb-commits
Differential Revision: https://reviews.llvm.org/D61746
llvm-svn: 360509
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D42892 changed a lot of code to use superclass DWARFUnit instead of its
subclass DWARFCompileUnit.
Finish this change more thoroughly for any *CompileUnit* -> *Unit* names.
Later patch will introduce DWARFTypeUnit which needs to be sometimes different
from DWARFCompileUnit and it would be confusing without this renaming.
Differential Revision: https://reviews.llvm.org/D61501
llvm-svn: 360443
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This can cause us to return paths to files on the local filesystem even
if we don't end up using that file (for instance because the file is not
a real module).
llvm-svn: 360432
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llvm-svn: 360412
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Summary:
some unwind formats are specific to a single symbol file and so it does
not make sense for their parsing code live in the general Symbol library
(as is the case with eh_frame for instance). This is the case for the
unwind information in breakpad files, but the same will probably be true
for PDB unwind info (once we are able to parse that).
This patch adds the ability to fetch an unwind plan provided by a symbol
file plugin, as discussed in the RFC at
<http://lists.llvm.org/pipermail/lldb-dev/2019-February/014703.html>.
I've kept the set of changes to a minimum, as there is no way to test
them until we have a symbol file which implements this API -- that is
comming in a follow-up patch, which will also implicitly test this
change.
The interesting part here is the introduction of the
"RegisterInfoResolver" interface. The reason for this is that breakpad
needs to be able to resolve register names (which are present as strings
in the file) into register enums so that it can construct the unwind
plan. This is normally done via the RegisterContext class, handing this
over to the SymbolFile plugin would mean that it has full access to the
debugged process, which is not something we want it to have. So instead,
I create a facade, which only provides the ability to query register
names, and hide the RegisterContext behind the facade.
Also note that this only adds the ability to dump the unwind plan
created by the symbol file plugin -- the plan is not used for unwinding
yet -- this will be added in a third patch, which will add additional
tests which makes sure the unwinding works as a whole.
Reviewers: jasonmolenda, clayborg
Subscribers: markmentovai, amccarth, lldb-commits
Differential Revision: https://reviews.llvm.org/D61732
llvm-svn: 360409
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happy."
While this fixed the windows bot failures, it also broke all other bots.
Upon closer inspection, it turns out that the windows bots were "broken"
because two tests were unexpectedly passing -- i.e., the original patch
(r360375) actually improved our stepping support on windows.
So instead, I remove the relevant XFAILs.
This reverts commit r360397.
llvm-svn: 360407
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llvm-svn: 360397
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calls and stepping into and them out of each one
Currently when we single step over a source line, we run and stop at every branch in the source line range. We can reduce the number of times we stop when stepping over by figuring out if any of these branches are function calls, and if so, ignore these branches. Since we are stepping over we can safely ignore these calls since they will return to the next instruction. Currently the step logic would stop at those branches (1st stop), single step into the branch (2nd stop), and then set a breakpoint at the return address (3rd stop), and then continue.
Differential Revision: https://reviews.llvm.org/D58678
llvm-svn: 360375
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Summary:
First part of a fix for JITed code debugging. This has been a regression from 5.0 to 6.0 and it's is still reproducible on current master: https://bugs.llvm.org/show_bug.cgi?id=36209
The address of the breakpoint site is corrupt: the 0x4 value we end up with, looks like an offset on a zero base address. When we parse the ELF section headers from the JIT descriptor, the load address for the text section we find in `header.sh_addr` is correct.
The bug manifests in `VMAddressProvider::GetVMRange(const ELFSectionHeader &)` (follow it from `ObjectFileELF::CreateSections()`). Here we think the object type was `eTypeObjectFile` and unleash some extra logic [1] which essentially overwrites the address with a zero value.
The object type is deduced from the ELF header's `e_type` in `ObjectFileELF::CalculateType()`. It never returns `eTypeJIT`, because the ELF header has no representation for it [2]. Instead the in-memory ELF object states `ET_REL`, which leads to `eTypeObjectFile`. This is what we get from `lli` at least since 3.x. (Might it be better to write `ET_EXEC` on the JIT side instead? In fact, relocations were already applied at this point, so "Relocatable" is not quite exact.)
So, this patch proposes to set `eTypeJIT` explicitly whenever we read from a JIT descriptor. In `ObjectFileELF::CreateSections()` we can then call `GetType()`, which returns the explicit value or otherwise falls back to `CalculateType()`.
LLDB then sets the breakpoint successfully. Next step: debug info.
```
Process 1056 stopped
* thread #1, name = 'lli', stop reason = breakpoint 1.2
frame #0: 0x00007ffff7ff7000 JIT(0x3ba2030)`jitbp()
JIT(0x3ba2030)`jitbp:
-> 0x7ffff7ff7000 <+0>: pushq %rbp
0x7ffff7ff7001 <+1>: movq %rsp, %rbp
0x7ffff7ff7004 <+4>: movabsq $0x7ffff7ff6000, %rdi ; imm = 0x7FFFF7FF6000
0x7ffff7ff700e <+14>: movabsq $0x7ffff6697e80, %rcx ; imm = 0x7FFFF6697E80
```
[1] It was first introduced with https://reviews.llvm.org/D38142#change-lF6csxV8HdlL, which has also been the original breaking change. The code has changed a lot since then.
[2] ELF object types: https://github.com/llvm/llvm-project/blob/2d2277f5/llvm/include/llvm/BinaryFormat/ELF.h#L110
Reviewers: labath, JDevlieghere, bkoropoff, clayborg, espindola, alexshap, stella.stamenova
Reviewed By: labath, clayborg
Subscribers: probinson, emaste, aprantl, arichardson, MaskRay, AlexDenisov, yurydelendik, lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D61611
llvm-svn: 360354
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Patch by Tyker!
Differential Revision: https://reviews.llvm.org/D60934
llvm-svn: 360312
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Previous ArchSpec tests didn't catch this bug since we never tested just the OS being out of date. Fixed the bug and covered this with a test that would catch this.
This was found when trying to load a core file where the core file was an ELF file with just the e_machine for architeture and where the ELF header had no OS set in the OSABI field of the e_ident. It wasn't merging the architecture with the target architecture correctly.
Differential Revision: https://reviews.llvm.org/D61659
llvm-svn: 360292
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Summary:
The logic for translating a user_id into a DWARFDIE was replicated in
several places. This removes that redundancy and settles on a single
implementation in SymbolFileDWARF.
The reason for choosing that instead of DIERef was that we were
always immediately converting the returned DIERef into a DWARFDIE
anyway, which meant that one had to specify the SymbolFileDWARF argument
twice (once to get the DIERef, and once to get the actual DIE). Also,
passing a higher-level object (SymbolFileDWARF) into a lower-level one
(DIERef) seemed like a less intuitive arrangement than doing things the
other way around.
Reviewers: JDevlieghere, clayborg, aprantl
Subscribers: tberghammer, jankratochvil, lldb-commits
Differential Revision: https://reviews.llvm.org/D61648
llvm-svn: 360246
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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
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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
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llvm-svn: 360193
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llvm-svn: 360178
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